Thision S PLUS - Central heating boiler Elco - Free user manual and instructions

Brand	Elco
Model	Thision S PLUS
Product type	Central heating boiler
Power supply	Gas or oil (depending on configuration)
Nominal power	Up to 2000 kW (depending on version)
Regulation	LMS digital controller with outdoor sensor
Heating circuits	Up to 2 circuits with mixing valve
DHW preparation	Yes, with anti-legionella function
Main functions	Climatic regulation, time programming, optimization, holiday mode, chimney sweep function, automatic purge
Display and control	Digital screen with navigation keys
Frost protection	Yes, for the boiler and the system
Safety	STB (safety temperature limiter), safety thermostat, flame monitoring, pressure switch
Scheduled maintenance	Adjustable intervals (operating hours, starts, months)
Environment	Solar function possible, cascade management
Maintenance and cleaning	Circuit purging, probe check, periodic burner cleaning
Spare parts and repairability	Sensors, valves, pumps, extension modules available
Dimensions	Approximately 600 x 800 x 400 mm (estimate)

Frequently Asked Questions - Thision S PLUS Elco

How to set the desired room temperature?

Turn the rotary knob to change the comfort setpoint temperature. Confirm with the OK key or wait 5 seconds. The setting range is 10 to 30°C in 0.5°C steps.

How to program the heating schedules?

Access the "Time program" menu via the OK key. Select the circuit (CC1, CC2, etc.). Choose the phases (up to 3 per day) and set the on/off times. You can also use presets (MON-SUN, MON-FRI, etc.).

What does the wrench symbol on the screen mean?

The wrench symbol indicates that manual mode is activated. In this mode, the controller does not follow the programs but operates according to a fixed setpoint (adjustable in parameter 2214, default 60°C). To deactivate, briefly press the manual mode key.

How to activate holiday mode?

In the "Holiday" menu, select the period (start and end) and the desired temperature level (reduced or frost protection). Holiday mode is only active in automatic mode.

How to interpret error codes?

When a fault appears, the alarm icon is displayed. Press the Info key to see the code (e.g. 30: flow sensor 1). Consult the code list in the manual to identify the fault. A 3-second reset on the Reset key may unlock certain faults.

What is the recommended regular maintenance?

Maintenance includes checking the maintenance thresholds (burner operating hours, number of starts, interval in months). The parameters are adjustable at lines 7040-7045. A maintenance message is displayed when a threshold is reached. Call a professional.

How to set the domestic hot water temperature?

In the DHW menu, you can set the comfort setpoint (line 1610, max 80°C) and the reduced setpoint (line 1612). Use the DHW key to activate/deactivate preparation according to the schedule.

Can I connect a solar system?

Yes, the LMS controller manages a solar installation for DHW and/or heating. The solar parameters are found in the "Solar" menu (lines 3810 and following). You can configure on/off temperature thresholds, frost protection, and priority.

How to perform a manual purge of the circuits?

Activate the purge function via parameter 7146 (on) and choose the type (continuous heating circuit, cyclic, etc.). The purge can be interrupted by resetting the parameter to "Off". An automatic purge function also exists (line 2630).

Where to find the after-sales service phone number?

The after-sales service phone number can be stored in parameter 7170. It is displayed on the screen in info mode. Contact your installer or the manufacturer Elco to obtain this number.

USER MANUAL Thision S PLUS Elco

3D rendered image of a hand pointing at a button (no text or symbols visible)

Front view of a gray industrial control panel with a digital display and rotary knob (no visible text or symbols)

Grundlagen

Legende:

Programmierung

Ladevorrang Speicher

TKx Kesseltemperatur
Bx Vergleichs-Isttemperatur
On/Off Kesselpumpe
SDon Temperaturdifferenz EIN
SDoff Temperaturdifferenz
AUS

Anlagenhydraulik

2. Pumpenstufe Q21, Q22, Q23

3D rendered image of a hand pointing at a button (no text or symbols visible)

Front view of a control panel with digital display and rotary knob (no visible text or symbols)

Fondamenti

Tasto modo operativo ACS (M)

Programmazione

Boiler pump on heat gen lock

Fan speed full charging max

Fan shutdown heating mode

Rilascio integr. seq. sorg.

Charging time relative prio

Waiting time relative prio

Stato Bus power supply

Contr. stop setpoint

3D rendered image of a hand pointing at a button (no text or symbols visible)

Front view of a control panel with digital display and rotary buttons (no visible text or symbols)

Table of Contents

Basics

Product description, Features, Functionality ....3

Controls....4

Display / Programming ....5

Overview of main functions 6

Parameters Enduser 7

Parameters professional installer....10

Info menu / Manual control / Chimney sweeper function / Controller stop.....33

Error messages / Maintenance ....34

Detailed settings

Menu time of day and date....37

Menu Operator section....38

Menu Time programs / Holiday 39

Menu Heating circuits....40

Menu DHW....51

Menu Consumer circuit ....55

Menu Swimming pool 56

Menu Primary controller / system pump 57

Menu Boiler 59

Menu Cascade 64

Menu Solar....66

Menu Solid fuel boiler....70

Menu Buffer storage tank....71

Menu Fault, Service/special operation 91

Menu Input/output test, State 94

Menu Diagnostics....95

Menu Burner control....96

Notes 97

Product description, Features, Functionality

Product description

The LMS controller is a weather compensated digital controller that can control two mixed heating zones, DHW preparation, do cascading and burner control.

Additional functions can be activated. The controller calculates the required temperatures for the boiler and the heating zones according to the outside temperature and controls DHW preparation. With additional optimizing functionality optimal energy savings can be achieved.

Features

Heating zone control with the following functions:

• Operation mode Heating, DHW
- Setpoint adjustment for Heating, DHW
- Info button
- Manual control
• Chimney sweeper function
- Reset button

Functionality

• Weather compensated heating zone controller for max. 2 mixed heating zones. DHW control with enable and setpoint adjustment.
• programmable time controlled circulation pump
• Illuminated display, multi lingual clear text for status and function indication
  • Automatic summer/winter change over
• Preprogrammed time programmes for Heating and DHW
• Individual time program with periods according to controller system configuration
• Holiday program for each heating zone
• Emission control / Chimney sweeper with automatic return to normal operation
• Floor curing function
  • Storage tank management
• Heat generation lock
  • External setpoint via 0-10Vdc
  • Solar DHW Heating functionality
• Programmable swimming pool control
• Integrated Cascade functionality for multiple boiler installation

• Room temperature control via accesory QAA 75 / 78
• QAA 75 via 2-wire Bus
• QAA 78 via wireless connection
- Adjustment of radiator or underfloor heating zones with adjustment of time programs
• Automatic heat slope adaption programmable
- Heat up optimization with quick start programmable
- Demand dependant cool down
- Adjustable minimum and maximum flow temperatures
- Pump post run
- Integrated hour counter
- anti-legionella function
- Boiler and system antifrost
- 2-wire bus connection for controller accessories
- LPB-Bus functionality via optional OCI 345

Operating instructions

Controls

Legend:

A On/off switch

B Return (ESC)

C Room temperature control

D Confirmation (OK)

E Manual mode

F Chimney sweeper mode

G Info mode

H Reset button

I Operation mode heating zone(s)

L Display

Operation mode heating zone(s) (I)

For setting 4 different heating modes: Auto (clock): Automatic operation by time program

Comfort (sun): 24/7 heating in comfort mode

Reduction (moon): 24/7 heating in reduced mode

Standby: heating off, frost protection activated.

Display (L)

Info mode (G)

Display possibility of following info without influence on boiler control:

temperatures, operation mode

Room temperature control (C)

- for changing room comfort temperature

- for changing setting when programming.

Confirmation (OK) (D)

Return (ESC) (B)

These buttons are used for programming in combination with the rotary knob.

By pressing the ESC button it's possible to go back one level, changed values are not taken over by the controller.

By pressing the OK button it's possible to arrive in the next level or confirm changed values.

Manual mode (E)

This button is used for switching the boiler into manual mode. In manual mode all pumps will run and the mixing valves are no longer controlled, the burner setpoint is 60°C (indicated by spanner symbol).

On/off switch (A)

Position 0:

Boiler and connected electrical components are no powered. Frost protection is not secured.

Position I

The boiler and connected electrical components are powered and standby for operation.

Deaeration mode (E)

By pressing the manual mode button longer than 3 seconds, the automatic hydraulic deaeration is activated. During deaeration the system is put in standby mode

The pumps are switched on and off for several times.

After deaeration, the boiler automatically returns to normal operation.

Chimney sweeper mode (F)

Used for combustion analysis. By pressing the button once again, or automatically after 15 minutes, the chimney sweeper mode will be deactivated (indicated by spanner symbol).

Reset button (H)

By shortly pressing the reset button a burner lockout can be cancelled.

Operating instructions

Display / Programming

Heating to comfort setpoint Info level activated

Heating to reduced setpoint Programming activated

Heating for frost protection setpoint Heating tem switched off

Process running – please wait

Burner operating (only oil / gas boiler)

Error messages

INFO

Info level active

PROG

Programming active

ECO

Heating temporarily switched off ECO function

Holiday function active

Reference to heating circuit

Maintenance / special operation

No.

Parameter number

Programming

Default mode (buttons)

Press OK (1x) Press INFO (4 sec.)

Enduser

• choose menu
• confirm with OK button
• choose parameter
• confirm with OK button
• change value + - with rotary knob
• confirm with OK button
• return to main menu with ESC button

Commissioning Expert

choose user level
- confirm with OK button
- choose menu
- confirm with OK button
- choose parameter
- confirm with OK button
- change value + - with rotary knob
- confirm with OK button
- return to main menu with ESC button

Overview of main functions

Button	Action	Procedure	Display / Function
	Set room temperature	Zone 1 and zone 2Actuate rotary knob left/rightTurn rotary knobConfirm with OK buttonor wait 5 sec.or press [IMAGE]	Comfort setpoint with blinking temperatureBlinking temperature in 0,5 °C steps from 10 to 30 °CComfort setpoint savedComfort setpoint cancelled- after 3 sec. Main menu appears
	Set room temperature for zone 1 or zone 2	Zone 2 independent from zone 1Actuate rotary knob left/rightConfirm with OK buttonActuate rotary knob left/rightConfirm with OK buttonor wait 5 sec.or press [IMAGE]	Choose heating zoneHeating zone is chosenBlinking temperature in 0,5 °C steps from 10 to 30 °CComfort setpoint savedComfort setpoint cancelled- after 3 sec. Main menu appears
	Switch on /off DHW operation	Press button	DHW mode on / off(see indication below DHW symbol)- On: DHW mode by time programm- Off: no DHW operation- Safety functions activated
	Change heating operation mode	Factory settingPress button 1xPress button 1x againPress button 1x again	Automatic mode on, with:- Heating by time programmtemperature setpoint by heating programmt-Safety functions activated- Summer/Winter automatic switching activated- ECO-functions activated(see indication below operation symbol)Continuous COMFORT heating on, with:- Heating without time programmt by comfort setpoint- Safety functions activatedContinuous REDUCED heating on, with:- Heating without time programmt by reduced setpoint- Safety functions activated- Summer/Winter automatic switching activated- ECO-functions activatedSafety mode on, with:- Heating off- Temperature by frost protection- Safety functions activated
	Controller Stop mode Press	Press button > 3 sec.Press button > 3 sec. again	304: Controller Stopp mode insert setpointafter 3 sec. Main menu appears
[W644]	Info display	Press button 1xPress button 1x againPress button 1x again......Press button 1x	INFO Segment displayed- Status Boiler - room temperature- room temperature minimum- Status DHW - room temperature maximum- Status zone 1 - outside temperature- Status zone 2 - outside temperature minimum- outside temperature maximum- Time / Date - DHW temperature 1- Error indication - Boiler temperature- Maintenance indication - Flow temperature(Info display depends on configuration)Back to main menu; INFO Segment disappears
	Operation by manual setpointChange factory setting boiler temperature	Press button 1xPress button [IMAGE]Turn rotary knob -/+Press button [IMAGE]Press button [IMAGE]	Manual mode on (spanner symbol appears)- Haeting by fixed setpoint(factory setting = 60 °C)301: Manual mode insert setpoint?blinking temperatureset valueStatus boilerManual mode off (spanner symbol disappears)
	Deaeration	Press button > 3 sec.Press button > 3 sec. again	312: Deaeration onDeaeration off
Activate chimney sweeper mode		Press button (< 3 sec.)Press button again (< 3 sec.)	Chimney sweeper mode onChimney sweeper mode off
Temporary reduction of reduced temperature on QAA75		Press buttonPress button again	Heating by reduced setpointHeating by comfort setpoint
RESET	Reset button Press button	(< 3 sec.)Press button again > 3 sec.	Boiler manually blocked, no releaseBoiler released, Alarm symbol disappears

• Main display "Boiler temperature"
• Press OK Button 1x
• Turn the rotary knob to select for example menu "DHW"
• Press OK Button 1x
• Turn the rotary knob to select for example parameter 1612 "DHW temperature reduced setpoint" in menu "DHW"
• Press OK Button 1x
• Turn the rotary knob to change the setting
• Press OK Button 1x > new setting has been stored
• Press ESC Button 2x to go back to main display "Boiler temperature"

Menu	Line no.	Operating line	Unit	Min.	Max	Factory setting*
Time of day and date	1	Hours / Minutes	hh:mm	00:00	23.59
	2	Day / Month	tt:MM	01.01	31.12.
	3	Year	jjjj	2004	2099
Operator section	20	Language	-	English, Deutsch, Francais, Italiano, Dansk, Nederlands, Español, Česky, Slovenský, Türksçe
Time program HC 1	500	Preselection	-	Mo-Su, Mo-Fr, Sa-Su, Mo,Tu,We,Th,Fr,Sa,Su
	501	Mo-Su: 1. Phase On	hh:mm	00:00	24:00
	502	Mo-Su: 1. Phase Off	hh:mm	00:00	24:00
	503	Mo-Su: 2. Phase On	hh:mm	00:00	24:00
	504	Mo-Su: 2. Phase Off	hh:mm	00:00	24:00
	505	Mo-Su: 3. Phase On	hh:mm	00:00	24:00
	506	Mo-Su: 3. Phase Off	hh:mm	00:00	24:00
	516	Default values	-	Yes, No
Time program HC 2(When activated)	520	Preselection	-	Mo-Su, Mo-Fr, Sa-Su, Mo,Tu,We,Th,Fr,Sa,Su
	521	Mo-Su: 1. Phase On	hh:mm	00:00	24:00
	522	Mo-Su: 1. Phase Off	hh:mm	00:00	24:00
	523	Mo-Su: 2. Phase On	hh:mm	00:00	24:00
	524	Mo-Su: 2. Phase Off	hh:mm	00:00	24:00
	525	Mo-Su: 3. Phase On	hh:mm	00:00	24:00
	526	Mo-Su: 3. Phase Off	hh:mm	00:00	24:00
	536	Default values	-	Yes, No
Time program 3/HC3(When activated)	540	Preselection	-	Mo-Su, Mo-Fr, Sa-Su, Mo,Tu,We,Th,Fr,Sa,Su
	541	Mo-Su: 1. Phase On	hh:mm	00:00	24:00
	542	Mo-Su: 1. Phase Off	hh:mm	00:00	24:00
	543	Mo-Su: 2. Phase On	hh:mm	00:00	24:00
	544	Mo-Su: 2. Phase Off	hh:mm	00:00	24:00
	545	Mo-Su: 3. Phase On	hh:mm	00:00	24:00
	546	Mo-Su: 3. Phase Off	hh:mm	00:00	24:00
	556	Default values	-	Yes, No

*See manual boiler

Menu	Line no.	Operating line	Unit	Min.	Max	Factory setting*
Time program 4/DHW	560	Preselection	-	Mo-Su, Mo-Fr, Sa-Su, Mo,Tu,We,Th,Fr,Sa,Su
	561	Mo-Su: 1. Phase On	hh:mm	00:00	24:00
	562	Mo-Su: 1. Phase Off	hh:mm	00:00	24:00
	563	Mo-Su: 2. Phase On	hh:mm	00:00	24:00
	564	Mo-Su: 2. Phase Off	hh:mm	00:00	24:00
	565	Mo-Su: 3. Phase On	hh:mm	00:00	24:00
	566	Mo-Su: 3. Phase Off	hh:mm	00:00	24:00
	576	Default values	-	Yes	No
Time program 5	600	Preselection	-	Mo-Su, Mo-Fr, Sa-Su, Mo,Tu,We,Th,Fr,Sa,Su
	601	Mo-Su: 1. Phase On	hh:mm	00:00	24:00
	602	Mo-Su: 1. Phase Off	hh:mm	00:00	24:00
	603	Mo-Su: 2. Phase On	hh:mm	00:00	24:00
	604	Mo-Su: 2. Phase Off	hh:mm	00:00	24:00
	605	Mo-Su: 3. Phase On	hh:mm	00:00	24:00
	606	Mo-Su: 3. Phase Off	hh:mm	00:00	24:00
	616	Default values	-	Yes	No
Holidays HC1	641	Preselection	-	Period 1, 2, 3, 4, 5, 6, 7, 8
	642	Period Start Day / Month	tt.MM	01.01	31.12
	643	Periode End Day / Month	tt.MM	01.01	31.12
	648	Operating level	-	Frost protection, Reduced
Holidays HC2 (When activated)	651	Preselection	-	Period 1, 2, 3, 4, 5, 6, 7, 8
	652	Period Start Day / Month	tt.MM	01.01	31.12
	653	Periode End Day / Month	tt.MM	01.01	31.12
	658	Operating level	-	Frost protection, Reduced
HC1	710	Comfort setpoint	°C	Value from Line no. 712	35
	712	Reduced setpoint	°C	4	Value from Line no. 710
	714	Frost protection setpoint	°C	4	Value from Line no. 712
	720	Heating curve slope	-	0.10	4.00
	730	Summer/winter heating limit	°C	---/8	30
HC2 (When activated)	1010	Comfort setpoint	°C	Value from Line no. 1012	35
	1012	Reduced setpoint	°C	4	Value from Line no. 1010
	1014	Frost protection setpoint	°C	4	Value from Line no. 1012
	1020	Heating curve slope	-	0.10	4.00
	1030	Summer/winter heating limit	°C	---/8	30
DHW	1610	Nominal setpoint	°C	Value from Line no. 1612	80
	1612	Reduced setpoint	°C	8	Value from Line no. 1610

*See manual boiler

Parameters Enduser

Menu	Line no.	Operating line	Unit	Min.	Max	Factory setting*
Swimming pool	2055	Pool setpoint solar heating	°C	8	80
	2056	Pool sepoint boiler heating	°C	8	80
Boiler	2214	Setpoint manual control	°C	10	90
Fault	6705	SW Diagnose Code	-	-	-	Indication only
	6706	Burner ctrl phase lockout pos	-	-	-	Indication only

*See manual boiler

• Main display "Boiler temperature"
• Press OK Button 1x
• Press Info Button > 3s
• Turn the rotary knob to select level "Commissioning" or "Engineer"
• Press OK Button 1x
• Turn the rotary knob to select for example menu "DHW"
• Press OK Button 1x
• Turn the rotary knob to select for example parameter 1612 "DHW temperature reduced setpoint" in menu "DHW"
• Press OK Button 1x
• Turn the rotary knob to change the setting
• Press OK Button 1x > new setting has been stored
• Press ESC Button 2x to go back to main display "Boiler temperature"

Access via "Commissioning" level will only show the parameters in grey.

Access via "Engineer" level will show all parameters.

*See manual boiler

Menu	Line no.	Operating line	Unit	Min.	Max	Factory setting*
Time of day and date	1	Hours / Minutes	hh:mm	00:00	23.59
	2	Day / Month	tt:MM	01.01	31.12.
	3	Year	jjjj	2004	2099
	5	Start of summertime Day / Month	tt:MM	01.01	31.12.
	6	End of summertime Day / Month	tt.MM	01.01	31.12.
Operator section	20	Language	-	English, Deutsch Francais, Italiano, Nederlands Polski
	22	Info	-	Temporarily, Permanently
	26	Operation lock	-	Off, On
	27	Programming lock	-	Off, On
	28	Direct adjustment	-	Automatic storage, Storage with confirmation
	44	Operation HC2	-	Jointly with HC1, Independently
	46	Operation HC3/P	-	Jointly with HC1, Independently
	70	Software Version	-	0	99.0
Time program HC 1	500	Preselection	-	Mo-Su, Mo-Fr, Sa-Su, Mo,Tu,We,Th,Fr,Sa,Su
	501	Mo-Su: 1. Phase On	hh:mm	00:00	24:00
	502	Mo-Su: 1. Phase Off	hh:mm	00:00	24:00
	503	Mo-Su: 2. Phase On	hh:mm	00:00	24:00
	504	Mo-Su: 2. Phase Off	hh:mm	00:00	24:00
	505	Mo-Su: 3. Phase On	hh:mm	00:00	24:00
	506	Mo-Su: 3. Phase Off	hh:mm	00:00	24:00
	516	Default values	-	Yes, No
Time program HC 2 (when activated)	520	Preselection	-	Mo-Su, Mo-Fr, Sa-Su, Mo,Tu,We,Th,Fr,Sa,Su
	521	Mo-Su: 1. Phase On	hh:mm	00:00	24:00
	522	Mo-Su: 1. Phase Off	hh:mm	00:00	24:00
	523	Mo-Su: 2. Phase On	hh:mm	00:00	24:00
	524	Mo-Su: 2. Phase Off	hh:mm	00:00	24:00
	525	Mo-Su: 3. Phase On	hh:mm	00:00	24:00
	526	Mo-Su: 3. Phase Off	hh:mm	00:00	24:00
	536	Default values	-	Yes, No
Time program HC3/P	540	Preselection	-	Mo-Su, Mo-Fr, Sa-Su, Mo,Tu,We,Th,Fr,Sa,Su
	541	Mo-Su: 1. Phase On	hh:mm	00:00	24:00
	542	Mo-Su: 1. Phase Off	hh:mm	00:00	24:00
	543	Mo-Su: 2. Phase On	hh:mm	00:00	24:00
	544	Mo-Su: 2. Phase Off	hh:mm	00:00	24:00
	545	Mo-Su: 3. Phase On	hh:mm	00:00	24:00
	546	Mo-Su: 3. Phase Off	hh:mm	00:00	24:00
	556	Default values	-	Yes, No
Time program 4 DHW	560	Preselection	-	Mo-Su, Mo-Fr, Sa-Su, Mo,Tu,We,Th,Fr,Sa,Su
	561	Mo-Su: 1. Phase On	hh:mm	00:00	24:00
	562	Mo-Su: 1. Phase Off	hh:mm	00:00	24:00
	563	Mo-Su: 2. Phase On	hh:mm	00:00	24:00
	564	Mo-Su: 2. Phase Off	hh:mm	00:00	24:00
	565	Mo-Su: 3. Phase On	hh:mm	00:00	24:00
	566	Mo-Su: 3. Phase Off	hh:mm	00:00	24:00
	576	Default values	-	Yes, No
Time program 5	600	Preselection -		Mo-Su, Mo-Fr, Sa-Su, Mo,Tu,We,Th,Fr,Sa,Su
	601	Mo-Su: 1. Phase On	hh:mm	00:00	24:00
	602	Mo-Su: 1. Phase Off	hh:mm	00:00	24:00
	603	Mo-Su: 2. Phase On	hh:mm	00:00	24:00
	604	Mo-Su: 2. Phase Off	hh:mm	00:00	24:00
	605	Mo-Su: 3. Phase On	hh:mm	00:00	24:00
	606	Mo-Su: 3. Phase Off	hh:mm	00:00	24:00
	616	Default values	-	Yes, No
Holidays HC1	641	Preselection	-	Period 1, 2, 3, 4, 5, 6, 7, 8
	642	Period Start Day / Month	tt.MM	01.01	31.12
	643	Periode End Day / Month	tt.MM	01.01	31.12
	648	Operating level	-	Frost protection
Holidays HC2(When activated)	651	Preselection	-	Period 1, 2, 3, 4, 5, 6, 7, 8
	652	Period Start Day / Month	tt.MM	01.01	31.12
	653	Periode End Day / Month	tt.MM	01.01	31.12
	658	Operating level	-	Frost protection
HC 1	700	Operating mode HC1	-	Protection, Automatic mode,Continuously comfort, Continuously reduced
	710	Comfort setpoint	°C	Value from Line no. 712	35
	712	Reduced setpoint	°C	Value from Line no. 714	Value from Line no. 710
	714	Frost protection setpoint	°C	4	Value from Line no. 712
	720	Heating curve slope	-	0.10	4.00
	721	Heating curve parallel displacement	°C	-4.5	4.5
	726	Heating curve adaption	°C	Off, On
	730	Summer/winter heating limit	°C	---/8 30
	732	24-hour heating limit	°C	---/-10 10
	733	Ext'n 24-hour heating limit	-	No, Yes
	740	Flow temp setpoint min	°C	8	Value from Line no. 741
	741	Flow temp setpoint max	°C	Value from Line no. 740	80
	742	Flow temp setpoint room stat	°C	Value from Line no. 740	Value from Line no. 741
	746	Delay heat request	s	0	600
	750	Room influence	%	---/0	100
	760	Room temp limitation	°C	---/0.5 4
	770	Boost heating	°C	---/0 20
	780 Quick setback -			Off, Down to Reduced setpoint,Down to Frost protection setpoint
	790	Optimum start control max	min	0	360
	791	Optimum Stop control max	min	0	360
	800	Reduced setp increase start	°C	---/30	10
	801	Reduced setp increase end	°C	-30	Value from Line no. 800
	820	Overtemp prot pump circuit	-	Off, On
	830	Mixing valve boost	°C	0	50
	832	Actuator type	-	2-position, 3-position
	833	Switching differential 2-pos	°C	0	20
	834	Actuator running time	s	30	873
	835	P-Band (Xp) HC1	°C	1	100
	836	Integral action time (Tn) HC1	s	10	873

Menu	Line no.	Operating line	Unit	Min.	Max	Factory setting*
HC 1	850 Floor curing function -			Off, Functional heating, Curing heating, Functional/Curing heating, Manually
	851	Floor curing setp manually	°C	0	95
	855	Floor curing setp current	°C	-		Indication only
	856	Floor curing day current	-	-		Indication only
	861	Excess heat draw	-	Off, Heating mode, Always
	870	With buffer	-	No, Yes
	872	With prim contr/system pump	-	No, Yes
	890	Flow setp readj speed ctrl	-	No, Yes
	898	Operating level change over	-	Frost protection, Reduced, Comfort
	900	Optg mode changeover	-	None, Protection, Reduced, Comfort, Automatic
HC 2 (when activated)	1000	Operating mode HC2	-	Protection, Automatic mode, Continuously comfort, Continuously reduced
	1010	Comfort setpoint	°C	Value from Line no. 1012	35
	1012	Reduced setpoint	°C	Value from Line no. 1014	Value from Line no. 1010
	1014	Frost protection setpoint	°C	4	Value from Line no. 1012
	1020	Heating curve slope	-	0.10	4.00
	1021	Heating curve parallel displacement	°C	-4.5	4.5
	1026	Heating curve adaption	°C	Off, On
	1030	Summer/winter heating limit	°C	---/8	30
	1032	24-hour heating limit	°C	---/-10 10
	1033	Ext'n 24-hour heating limit	-	No, Yes	No, Yes
	1040	Flow temp setpoint min	°C	8	Value from Line no. 1041
	1041	Flow temp setpoint max	°C	Value from Line no. 1040	80
	1042	Flow temp setpoint room stat	°C	Value from Line no. 1040	Value from Line no. 1041
	1050	Room influence	%	---/0	100
	1060	Room temp limitation	°C	---/0.5	4
	1070	Boost heating	°C	---/0	20
	1080	Quick setback	-	Off, Down to Reduced setpoint, Down to Frost protection setpoint
	1090	Optimum start control max	min	0	360
	1091	Optimum Stop control max	min	0	360
	1100	Reduced setp increase start	°C	---/30	10
	1101	Reduced setp increase end	°C	-30	Value from Line no. 1100
	1120	Overtemp prot pump circuit	-	Off, On
	1130	Mixing valve boost	°C	0	50
	1132	Actuator type	-	2-position, 3-position
	1133	Switching differential 2-pos	°C	0	20
	1134	Actuator running time	s	30	873
	1135	P-Band (Xp) HC1	°C	1	100
	1136	Integral action time (Tn) HC1	s	10	873
	1150	Floor curing function	-	Off, Functional heating, Curing heating, Functional/Curing heating, Manually
	1151	Floor curing setp manually	°C	0	95
	1155	Floor curing setp current	°C	-	-	Indication only
	1156	Floor curing day current	-	-	-	Indication only
	1161	Excess heat draw	-	Off, Heating mode, Always
	1170	With buffer	-	No, Yes
	1172	With prim contr/system pump	-	No, Yes
	1190	Flow setp readj speed ctrl	-	No, Yes
	1198	Operating level change over	-	Frost protection, Reduced, Comfort
	1200	Optg mode changeover	-	None, Protection, Reduced, Comfort, Automatic
Domestic hot water	1600	Operating mode	-	Off, On, Eco
	1610	Nominal setpoint	°C	8	80
	1612	Reduced setpoint	°C	8	80
	1620 Release		-	24h/Day, Time programs HCs, Time program 4/DHW
	1630	Charging priority	-	Absolute, Shifting, None, MC shifting PC absolute
	1640	Legionella function	-	Off, Periodically, Fixed weekday
	1641	Legionella function periodically	-	1	7
	1642	Legionella funct Day	-	Mo,Tu,We,Th,Fr,Sa,Su
	1644	Legionella funct time	h:m	00:00	23:50
	1645	Legionella funct setpoint	°C	55	95
	1646	Legionella funct duration	min	10	360
	1647	Legionella funct circ pump	-	Off, On
	1660	Circulating pump release	-	Time program 3/HCP, DHW release, Time program 4/DHW, Time program 5
	1661	Circulating pump cycling	-	Off, On
	1663	Circulation setpoint	°C	8	80
	1680	Optg mode changeover	-	None, Off, On
Consumer circuit 1	1859	Flow temp setp cons request	°C	8	120
	1874	DHW charging priority	-	No, Yes
	1875	Excess heat draw	-	Off, On
	1878	With buffer	-	No, Yes
	1880	With prim contr/system pump	-	No, Yes
Consumer circuit 2	1909	Flow temp setp cons request	°C	8	120
	1924	DHW charging priority	-	No, Yes
	1925	Excess heat draw	-	Off, On
	1928	With buffer	-	No, Yes
	1930	With prim contr/system pump	-	No, Yes
Swimming pool circuit	1959	Flow temp setpoint	°C	8
	1974	DHW charging priority	-	No, Yes
	1975	Excess heat draw	-	Off, On
	1978	With buffer	-	No, Yes
	1980	With prim contr/system pump	-	No, Yes
Swimming pool	2055	Pool setpoint solar heating	°C	8	80
	2056	Pool setpoint producer heating	°C	8	80
	2065	Pool charging priority solar	-	Priority 1, Priority 2, Priority 3
	2070	Pool temperature maximum	°C	8	95
	2080	Pool with solar	-	No, Yes

Parameters professional installer

Menu	Line no.	Operating line	Unit	Min.	Max	Factory setting*
Primary control/System pump	2110	Flow temp min limitation	°C	8	95
	2111	Flow temp max limitation	°C	8	95
	2121	Syst pump on heat gen lock	-	Off, On
	2130	Mixing valve boost	°C	0	50
	2132	Actuator type	-	2-position, 3-position
	2133	Switching differential 2-pos	°C	0	20
	2134	Actuator running time	s	30	873
	2135	P-Band (Xp)	°C	1	100
	2136	Integral action time (Tn) HC1	s	10	873
	2150	Primary control/System pump	-	Upstream of buffer, Downstream of buffer
Boiler	2210	Setpoint min	°C	8	95
	2212	Setpoint max	°C	8	120
	2214	Setpoint manual control	°C	8	120
	2233	P-Band Xp HCs	°C	1	200
	2234	Int action time Tn HCs	s	4	873
	2235	Der action time Tv HCs	s	0	30
	2236	P-Band Xp DHW	°C	1	200
	2237	Int action time Tn DHW	s	4	873
	2238	Der action time Tv DHW	s	0	30
	2241	Burner running time min	min	0	20
	2243	Burner off time min	min	0	60
	2245	SD burner off time	°C	0	80
	2250	Pump overrun time	min	0	240
	2253	Pump overr time after DHW	min	0	20
	2270	Return setpoint min	°C	8	95
	2301	Boiler pump on heat gen lock	-	Off, On
	2305	Impact heat generation lock	-	Heating mode only, Heating and DHW mode
	2316	Temp differential max	°C	0	80
	2317	Temp differential nominal	°C	0	80
	2320 Pump modulation		-	None, Demand, Boiler setpoint, Temp differential nominal, Burner output
	2321	Starting speed	%	0	100
	2322	Pump speed min	%	0	100
	2323	Pump speed max	%	0	100
	2324	Speed Xp	°C	1	200
	2325	Speed Tn	s	10	873

*See manual boiler

Parameters professional installer

Menu	Line no.	Operating line	Unit	Min.	Max	Factory setting*
Boiler	2326	Speed Tv	s	0	30
	2329	Pump setpoint reduction	°C	0	20
	2330	Output nominal	kW	0	2000
	2331	Output basic stage	kW	0	2000
	2334	Output at pump speed min	%	0	100
	2335	Output at pump speed max	%	0	100
	2441	Fan speed heating max	U/min	0	10000
	2442	Fan speed full charging max	U/min	0	10000
	2444	Fan speed DHW max	U/min	0	10000
	2445	Fan shutdown heating mode	-	Off, On
	2446	Fan shutdown delay	s	0	200
	2450	Controller delay	-	Off, Heating mode only, DHW mode only, Heating and DHW mode
	2452	Controller delay speed	U/min	0	10000
	2453	Controller delay duration	s	0	255
	2470	Delay heat req special op	s	0	600
	2630	Auto deaeration procedure	-	Off, On
	2655	ON time deaeration	s	0	240
	2656	OFF time deaeration	s	0	240
	2657	Number of repetitions	-	0	100
	2662	Deaeration time heat circuit	min	0	255
	2663	Deaeration time DHW	min	0	255
Cascade (when activated)	3510	Lead strategy	-	Late on early off, Late on late off, Early on late off
	3511	Output band min	%	0	100
	3512	Output band max	%	0	100
	3530	Release integral source seq	°C*min	0	500
	3531	Reset integral source seq	°C*min	0	500
	3532	Restart lock	s	0	1800
	3533	Switch on delay	min	0	120
	3534	Forced time basic stage	s	0	1200
	3540	Auto source seq ch'over	h	10	990
	3541	Auto source seq exclusion	-	None, First, Last, First and Last
	3544	Leading source	-	1	16
	3560	Return setpoint min	°C	8	95

*See manual boiler

Parameters professional installer

Menu	Line no.	Operating line	Unit	Min.	Max	Factory setting*
Solar	3810	Temp diff on	°C	0	40
	3811	Temp diff off	°C	0	40
	3812	Charge temp min DHW	°C	8	95
	3813	Temp diff on buffer	°C	0	40
	3814	Temp diff off buffer	°C	0	40
	3815	Charging temp min buffer	°C	8	95
	3816	Temp diff on pool	°C	0	40
	3817	Temp diff off pool	°C	0	40
	3818	Charging temp min pool	°C	8	95
	3822	DHW storage tank	-	None, DHW storage tank, Buffer
	3825	Charging time relative priority	min	2	60
	3826	Waiting time relative priority	min	1	40
	3827	Waiting time parallel operation	min	0	40
	3828	Delay secondary pump	s	0	600
	3830	Collector start function	min	5	60
	3831	Min run time collector pump	s	5	120
	3834	Collector start funct grad	min/°C	1	20
	3840	Collector frost protection	°C	-20	5
	3850	Collector overtemp protection	°C	30	350
	3860	Evaporation heat carrier	°C	60	350
	3870	Pump speed min	%	0	100
	3871	Pump speed max	%	0	100
	3880 Antifreeze		-	None, Ethylene glycol, Propylene glycol, Ethyl and propyl glycol
	3881	Antifreeze concentration	%	1	100
	3884	Pump capacity	l/h	10	1500
	3887	Pulse count yield	l	0	100
Solid fuel boiler	4102	Lock other heat sources	-	Off, On
	4110	Setpoint min	°C	8	120
	4130	Temp diff on	°C	1	40
	4131	Temp diff off	°C	0	40
	4133	Comparative temp	-	DHW sensor B3, DHW sensor B31, Buffer sensor B4, Buffer sensor B41, Flow temp setpoint, Setpoint min
	4141	Excess heat discharge	°C	60	140
	4170	Frost prot plant boiler pump	-	Off, On

*See manual boiler

Parameters professional installer

Menu	Line no.	Operating line	Unit	Min.	Max	Factory setting*
Buffer	4720	Auto heat gen lock	-	None, With B4, With B4 and B42/B41
	4721	Auto heat gen lock SD	°C	0	20
	4722	Temp diff buffer/HC	°C	-20	20
	4724	Min st tank temp heat mode	°C	8	95
	4750	Charging temp max	°C	8	95
	4755	Recooling temp	°C	8	95
	4756	Recooling DHW/HCs	-	Off, On
	4757	Recooling collector	-	Off, Summer, Always
	4783	With solar integration	-	No, Yes
	4790	Temp diff on return div	°C	0	40
	4791	Temp diff off return div	°C	0	40
	4795	Compar temp return div	-	With B4, With B41, With B42
	4796	Optg action return diversion	-	Temperature decrease, Temp increase
	4800	Partial charging setpoint	°C	8	95
	4810	Full charging	-	Off, Heating mode, Always
	4811	Full charging temp min	°C	8	80
	4813	Full charging sensor	-	With B4, With B42/B41
DHW Storage tank	5010	Charging	-	Once/day, Several times/day
	5020	Flow setpoint boost	°C	0	30
	5021	Transfer boost	°C	0	30
	5022 Type of charging		-	Recharging, Full charging, Full charging legio, Full charg 1st time day, Full charg 1st time day legio
	5024	Switching diff	°C	0	20
	5030	Charging time limitation	min	10	600
	5040	Discharging protection	-	Off, Always, Automatic
	5050	Charging temp max	°C	8	95
	5055	Recooling temp	°C	8	95
	5056	Recooling heat gen/HCs	-	Off, On
	5057	Recooling collector	-	Off, Summer, Always
	5060	El imm heater optg mode	-	Substitute, Summer, Always
	5061	El immersion heater release	-	24h/day, DHW release, Time program 4/DHW
	5062	El immersion heater control	-	External thermostat, DHW sensor
	5070	Automatic push	-	Off, On
	5085	Excess heat draw	-	Off, On

*See manual boiler

Parameters professional installer

Menu	Line no.	Operating line	Unit	Min.	Max	Factory setting*
DHW storage tank	5090 With buffer - No, Yes
	5092	With prim contr/system pump	-	No, Yes
	5093	With solar integration	-	No, Yes
	5101	Pump speed min	%	0	100
	5102	Pump speed max	%	0	100
	5130	Transfer strategy	-	Off, Always, DHW release
	5131	Comparison temp transfer	-	DHW sensor B3, DHW sensor B31
DHW flow heater	5420	Flow setpoint boost	°C	0	30
	5444	Threshold flow detection	l/min	0,1	25,5
	5445	Switching diff flow detection	l/min	0,1	25,5
	5450	Gradient end cons	K/s	-2	1,984375
	5451	Grad start cons keep hot	K/s	-2	0
	5452	Gradient start cons heat	K/s	-2	0
	5455	Setp readj cons 40°C	°C	-20	20
	5456	'Setp readj cons 60°C	°C	-20	20
	5460	Setpoint keep hot	°C	10	60
	5461	Readj setp keep hot 40°C	°C	-20	20
	5462	Readj setp keep hot 60°C	°C	-20	20
	5464	Keep hot release	-	None, 24h/day, DJW release, Time program 3/HC3, Time program 4/DHW, Time program 5
	5468	Min cons time for keep hot	s	0	60
	5470	Keep hot time wo heating	min	0	1440
	5471	Keep hot time with heating	min	0	30
	5472	Pump overrun time keep hot	min	0	255
	5473	Pump overrun time keep hot	s	0	59
	5475	Control sensor keep hot	-	Boiler sensor B2, Return sensor B7, DHW outlet sensor B38
	5482	Flow switch time cons	s	0	10
	5489	Overrun via inst WH	-	Off, On
	5530	Pump speed min	%	0	100
	5531	Pump speed max	%	0	100
	5550	Aqua booster	-	No, Yes, Wo grandient detection

*See manual boiler

Parameters professional installer

Menu	Line no.	Operating line	Unit	Min. Max		Factory setting*
Configuration	5700	Presetting	-	1	4
	5710 Heating circuit 1 - Off, On
	5715 Heating circuit 2 - Off, On
	5730 DHW sensor -			DHW sensor B3, Thermostat, DHW outlet sensor B38
	5731 DHW controlling element -			No charging request, Charging pump, Diverting valve
	5734	Basic pos DHW div valve	-	Last request, Heating circuit, DHW
	5736	DHW separate circuit	-	Off, On
	5737	Optg action DHW div valve	-	Position On DHW, Position On HC
	5738	Midposition DHW div valve	-	Off, On
	5774	Ctrl boiler pump/DHW valve	-	All requests, Request HC1/DHW only
	5840	Solar controlling element	-	Charging pump, Diverting valve
	5841 External solar exchanger -			Jointly, DHW storage tank, Buffer storage tank
	5870	Combi storage tank	-	No, Yes
	5890	Relay output QX1		0: None
	5891	Relay output QX2		1: Circulating pump Q42: El imm heater DHW K63: Collector pump Q54: Cons circuit pump VK1 Q155: Boiler pump Q16: Bypass pump Q127: Alarm output K108: 2nd pump speed HC1 Q219: 2nd pump speed HC2 Q2210: 2nd pump speed HC3 Q2311: Heat circuit pump HC3 Q2012: Cons circuit pump VK2 Q1813: System pump Q1414: Heat gen shutoff valve Y415: Solid fuel boiler pump Q1016: Time program 5 K1317: Buffer return valve Y1518: Solar pump ext exch K919: Solar ctrl elem buffer K820: Solar ctrl elem swi pool K1822: Swimming pool pump Q1925: Cascade pump Q2526: St tank transfer pump Q1127: DHW mixing pump Q3528: DHW interm circ pump Q3329: Heat request K2730: Refrigeration request K2833: Heat circuit pump HC1 Q234: Heat circuit pump HC2 Q635: DHW ctrl elem Q336: Instant heater ctrl elem Q3438: Water filling K3439: 2nd boiler pump speed Q2740: Status output K3541: Status information K3642: Flue gas damper K3743: Fan shutdown K38
	5892 DHW ctrl elem Q3		-
	5930 Sensor input BX1			0: None
	5931 Sensor input BX2			1: DHW sensor B312: Collector sensor B64: DHW circulating sensor B395: Buffer sensor B46: Buffer sensor B417: Flue gas temp sensor B88: Segment flow sensor B109: Solid fuel boiler sensor B2210: DHW charging sensor B3611: Buffer sensor B4212: Segment return sensor B7313: Cascade return sensor B7014: Pool sensor B1316: Solar flow sensor B6317: Solar return sensor B6419: Primary exch sensor B26
	5932 Sensor input BX3		-

Parameters professional installer

Menu	Line no.	Operating line	Unit	Min. Max		Factory setting*
Configuration	5931	Sensor input BX2	-	See Line no. 5930
	5950 Function input H1 -			0: None1: Optg mode change HCs+DHW2: Optg mode changeover DHW3: Optg mode changeover HCs4: Optg mode changeover HC15: Optg mode changeover HC26: Optg mode changeover HC37: Heat generation lock8: Error/alarm message9: Consumer request VK110: Consumer request VK211: Release swi pool source heat12: Excess heat discharge13: Release swi pool solar14: Operating level DHW15: Operating level HC116: Operating level HC217: Operating level HC318: Room thermostat HC119: Room thermostat HC220: Room thermostat HC321: DHW flow switch22: DHW thermostat24: Pulse count28: Checkb sign flue gas damper29: Start prevention31: Boiler flow switch32: Boiler pressure switch51: Consumer request VK1 10V52: Consumer request VK2 10V54: Pressure measurement 10V58: Preselected output 10V
	5951	Contact type H1	-	NC, NO
	5953	Voltage value 1 H1	V	0	10
	5954	Function value 1 H1	-	-1000	5000
	5955	Voltage value 2 H1	V	0	10
	5956	Function value 2 H1	-	-1000	5000
	5970 Function input H4 -			0: None1: Optg mode change HCs+DHW2: Optg mode changeover DHW3: Optg mode changeover HCs4: Optg mode changeover HC15: Optg mode changeover HC26: Optg mode changeover HC37: Heat generation lock8: Error/alarm message9: Consumer request VK110: Consumer request VK211: Release swi pool source heat12:Excess heat discharge13: Release swi pool solar14: Operating level DHW15: Operating level HC116: Operating level HC217: Operating level HC318: Room thermostat HC119: Room thermostat HC220: Room thermostat HC321: DHW flow switch22: DHW thermostat24: Pulse count28: Checkb sign flue gas damper29: Start prevention31: Boiler flow switches32: Boiler pressure switch50: Flow measurement Hz

*See manual boiler

Parameters professional installer

Menu	Line no.	Operating line	Unit	Min. Max		Factory setting*
Configuration	5971	Contact type H4	-	NC, NO
	5973	Frequency value 1 H4	-	0	1000
	5974	Function value 1 H4	-	-1000	5000
	5975	Frequency 2 H4	-	0	1000
	5976	Function value 2 H4	-	-1000
	5977	Function input H5	-	0: None1: Optg mode change HCs+DHW2: Optg mode changeover DHW3: Optg mode changeover HCs4: Optg mode changeover HC15: Optg mode changeover HC26: Optg mode changeover HC37: Heat generation lock8: Error/alarm message9: Consumer request VK110: Consumer request VK211: Release swi pool source heat12: Excess heat discharge13: Release swi pool solar14: Operating level DHW15: Operating level HC116: Operating level HC217: Operating level HC318: Room thermostat HC119: Room thermostat HC220: Room thermostat HC321: DHW flow switch22: DHW thermostat24: Pulse count28: Checkb sign flue gas damper29: Start prevention31: Boiler flow switch32: Boiler pressure switch
	5978	Contact type H5	-	NC, NO
	6020	Function extension module 1	-	0: None1: Multifunctional2: Heating circuit 13: Heating circuit 24: Heating circuit 35: Return temp controller6: Solar DHW
	6021	Function extension module 2	-
	6022	Function extension module 3	-
	6024	Funct input EX21 module 1	-	0: None25: Limit thermostat HC
	6026	Funct input EX21 module 2	-
	6028	Funct input EX21 module 3	-
	6030	Relay output QX21 module 1	-	0: None1: Circulating pump Q42: El imm heater DHW K63: Collector pump Q54: Cons circuit pump VK1 Q155: Boiler pump Q16: Bypass pump Q127: Alarm output K108: 2nd pump speed HC1 Q219: 2nd pump speed HC2 Q2210: 2nd pump speed HC3 Q2311: Heat circuit pump HC3 Q2012: Cons circuit pump VK2 Q1813: System pump Q1414: Heat gen shutoff valve Y415: Solid fuel boiler pump Q1016: Time program 5 K1317: Buffer return valve Y1518: Solar pump ext exch K919: Solar ctrl elem buffer K8
	6031	Relay output QX22 module 1	-
	6032	Relay output QX23 module 1	-
	6033	Relay output QX21 module 2	-
	6034	Relay output QX22 module 2	-
	6035	Relay output QX23 module 2	-
	6036	Relay output QX21 module 3	-
	6037	Relay output QX22 module 3	-
	6038	Relay output QX23 module 3	-	See next page for more functions

*See manual boiler

Menu	Line no.	Operating line	Unit	Min. Max		Factory setting*
Configuration	6030 Relay output QX21 module 1 -			See previous page for more functions
	6031 Relay output QX22 module 1 -			20: Solar ctrl elem swi pool K1822: Swimming pool pump Q1925: Cascade pump Q2526: St tank transfer pump Q1127: DHW mixing pump Q3528: DHW interm circ pump Q3329: Heat request K2730: Refrigeration request K2833: Heat circuit pump HC1 Q234: Heat circuit pump HC2 Q635: DHW ctrl elem Q336: Instant heater ctrl elem Q3438: Water filling K3439: 2nd boiler pump speed Q2740: Status output K3541: Status information K3643: Fan shutdown K38
	6032 Relay output QX23 module 1 -
	6033 Relay output QX21 module 2 -
	6034 Relay output QX22 module 2 -
	6035 Relay output QX23 module 2 -
	6036 Relay output QX21 module 3 -
	6037 Relay output QX22 module 3 -
	6038 Relay output QX23 module 3 -
	6040 Sensor input BX21 module 1 -			0: None1: DHW sensor B312: Collector sensor B64: DHW circulating sensor B395: Buffer sensor B46: Buffer sensor B417: Flue gas temp sensor B88: Segment flow sensor B109: Solid fuel boiler sensor B2210: DHW charging sensor B3611: Buffer sensor B4212: Segment return sensor B7313: Cascade return sensor B70
	6041 Sensor input BX22 module 1 -
	6042 Sensor input BX21 module 2 -
	6043 Sensor input BX22 module 2 -
	6044 Sensor input BX21 module 3 -
	6045 Sensor input BX22 module 3 -
	6046 Function input H2 module 1 -			0: None1: DHW sensor B312: Collector sensor B64: DHW circulating sensor B395: Buffer sensor B46: Buffer sensor B417: Flue gas temp sensor B88: Segment flow sensor B109: Solid fuel boiler sensor B2210: DHW charging sensor B3611: Buffer sensor B4212: Segment return sensor B73B3: Cascade return sensor B7014: Pool sensor B1316: Solar flow sensor B6317: Solar return sensor B6419: Primary exch sensor B26
	6054 Function input H2 module 2 -
	6062 Function input H2 module 3 -
	6047 Contact type H2 module 1 -			NC, NO
	6055 Contact type H2 module 2 -
	6063 Contact type H2 module 3 -
	6049 Voltage value 1 H2 module 1		V	0 10
	6057 Voltage value 1 H2 module 2		V
	6065 Voltage value 1 H2 module 3		V
	6050 Function value 1 H2 module 1		-	-1000	5000
	6058 Function value 1 H2 module 2		-
	6066 Function value 1 H2 module 3		-

*See manual boiler

Parameters professional installer

Menu	Line no.	Operating line	Unit	Min.	Max	Factory setting*
Configuration	6051	Voltage value 2 H2 module 1	V	0 10
	6059	Voltage value 2 H2 module 2	V
	6067	Voltage value 2 H2 module 3	V
	6052	Function value 2 H2 module 1	-	-1000 5000
	6060	Function value 2 H2 module 2	-
	6068	Function value 2 H2 module 3	-
	6097	Sensor type collector	-	NTC, PT 1000
	6098	Readjustm collector sensor	°C	-20	20
	6100	Readjustm outside sensor	°C	-3	3
	6110	Time constant building	h	0	50
	6117	Central setpoint shift	°C	1	100
	6118	Setpoint reduction delay	K/min	1	200
	6120	Frost protection plant	-	Off, On
	6200	Save sensors	-	No, Yes
	6205	Reset to default parameters	-	No, Yes
	6212	Check nr heat source 1	-	0	199999
	6213	Check nr heat source 2	-	0	199999
	6215	Check nr storage tank	-	0	199999
	6217	Check nr heating circuits	-	0	199999
	6220	Software version	-	0	99
LPB	6600	Device address	-	0	239
	6601	Segment address	-	0	16
	6604	Bus power supply function	-	Off, Automatically
	6605	Bus power supply state	-	Off, On
	6610	Display system messages	-	No, Yes
	6620	Action changeover functions	-	Segment, System
	6621	Summer changeover	-	Locally, Centrally
	6623	Optg mode changeover	-	Locally, Centrally
	6624	Manual source lock	-	Locally, Segment
	6625	DHW assignment	-	Local HCs, All HCs in segment, All HCs in system
	6632	Note OT limit ext source	-	No, Yes
	6640	Clock mode	-	Autonomously, Slave without remote setting, Slave with remote setting, Master
	6650	Outside temp source	-	0	239

*See manual boiler

Parameters professional installer

Menu	Line no.	Operating line	Unit	Min.	Max	Factory setting*
Fault	6700	Message	-	0	65535
	6705	SW diagnostic code	-	0	65535
	6706	Burn ctrl phase lockout pos	-	0	255
	6710	Reset alarm relay	-	0	1
	6740	Flow temp 1 alarm	min	10 240
	6741	Flow temp 2 alarm	min
	6742	Flow temp 3 alarm	min
	6743	Boiler temp alarm	min	10	240
	6745	DHW charging alarm	h	1	48
	680068106820	History 1History 2...	h:m	00:00	23:59
	680368136823	Error code 1Error code 2...	-	0	9999
	680568156825	SW diagnostic code 1SW diagnostic code 2...	-	0	9999
	680668166826	Burner control phase 1Burner control phase 2...	-0	255

*See manual boiler

Menu	Line no.	Operating line	Unit	Min. Max			Factory setting*
Fault	6960	History 17	h:m	00:00	23:59
	6963	Error code 17	-	0	9999
	6965	SW diagnostic code 17	-	0	9999
	6966	Burner control phase 17	-	0	255
	6970	History 18	h:m	00:00	23:59
	6973	Error code 18	-	0	9999
	6975	SW diagnostic code 18	-	0	9999
	6976	Burner control phase 18	-	0	255
	6980	History 19	h:m	00:00	23:59
	6983	Error code 19	-	0	9999
	6985	SW diagnostic code 19	-	0	9999
	6986	Burner control phase 19	-	0	255
	6990	History 20	h:m	00:00	23:59
	6993	Error code 20	-	0	9999
	6995	SW diagnostic code 20	-	0	9999
	6996	Burner control phase 20	-	0	255
Service/Special operation	7040	Burner hours interval	h	100	10000
	7041	Burn hrs since maintenance	h	0	10000
	7042	Burner start interval	-	100	65500
	7043	Burn starts since maint	-	0	65535
	7044	Maintenance interval	Months	1	240
	7045	Time since maintenance	Months	0	240
	7050	Fan speed ionization current	rpm	0	10000
	7051	Message ionization current	-	No, Yes
	7130	Chimney sweep function	-	Off, On
	7131	Burner output	-	Partial load, Full load, Max heating load
	7140	Manual control	-	Off, On
	7143	Controller stop function	-	Off, On
	7145	Controller stop setpoint	%	0	100
	7146	Deaeration function	-	Off, On
	7147 Type of venting		-	None, Heating circuit continuous, Heating circuit cycled, DHW continuous, DHW cycled
	7170	Telephone customer service	-	0	9
	7250	PStick storage pos	-	0	250
	7251	PStick data description	-	0	255
	7252	PStick command	-	No operation, Reading from stick, Writing on stick
	7253	PStick progress	%	0	100

Parameters professional installer

Menu	Line no.	Operating line	Unit	Min. Max			Factory setting*
Service/Special operation	7254 PStick status -			No stickNo operationWriting on stickReading from stickEMC test activeWriting errorReading errorIncompatible data setWrong stick typeStick format errorCheck data setData set disabledReading disabled
Input/Output Test	7700 Relay test -			No testEverything offRelay output QX1Relay output QX2Relay output QX3Relay output QX4Relay output QX21 module 1Relay output QX22 module 1Relay output QX23 module 1Relay output QX21 module 2Relay output QX22 module 2Relay output QX23 module 2Relay output QX21 module 3Relay output QX22 module 3Relay output QX23 module 3
	7713	Output test P1	%	0	100
	7714	PWM output P1	%	0	100
	7730	Outside temp B9	°C	-50	50
	7750	DHW temp B3/B38	°C	0	140
	7760	Boiler temp B2	°C	0	140
	7820	Sensor temp BX1	°C	-28	350
	7821	Sensor temp BX2	°C	-28	350
	7822	Sensor temp BX3	°C	-28	350
	7823	Sensor temp BX4	°C	-28	350
	7830	Sensor temp BX21 module 1	°C	-28	350
	7831	Sensor temp BX22 module 1	°C	-28	350
	7832	Sensor temp BX21 module 2	°C	-28	350
	7833	Sensor temp BX22 module 2	°C	-28	350
	7834	Sensor temp BX21 module 3	°C	-28	350
	7835	Sensor temp BX22 module 3	°C	-28	350
	7840	Voltage signal H1	V	0	10
	7841	Contact state H1	-	Open, Closed
	7845	Voltage signal H2 module 1	V	0	10
	7846	Contact state H2 module 1	-	Open, Closed
	7848	Voltage signal H2 module 2	V	0	10
	7849	Contact state H2 module 2	-	Open, Closed
	7851	Voltage signal H2 module 3	V	0	10
	7852	Contact state H2 module 3	-	Open, Closed
	7854	Voltage signal H3	V	0	10
	7855	Contact state H3	-	Open, Closed

*See manual boiler

Parameters professional installer

Menu	Line no.	Operating line	Unit	Min.	Max	Factory setting*
Input/Output Test	7862	Frequency H4	-	0	2000
	7860	Contact state H4	-	Open, Closed
	7865	Contact state H5	-	Open, Closed
	7872	Contact state H6	-	Open, Closed
	7874	Contact state H7	-	Open, Closed
	7950	Input EX21 module 1	-	0V, 230V
	7951	Input EX21 module 2	-	0V, 230V
	7952	Input EX21 module 3	-	0V, 230V
State	8000	State heating circuit 1	-	0: ---1: SLT tripped254: Value 550; 254255: Value 550; 255
	8001	State heating circuit 2	-
	8002	State heating circuit 3	-
	8003	State DHW	-
	8005	State boiler	-
	8007	State solar	-
	8008	State solid fuel boiler	-
	8009	State burner	-
	8010	State buffer	-
	8011	State swimming pool	-
Diagnostics cascade (when activated)	8100	Priority source 1	-	0	16	Indication only
	8101 State source 1 -			MissingFaultyManual control activeHeat generation lock activeChimney sweep funct activeTemporarily unavailableOutside temp limit activeNot releasedReleased
	8102	Priority source 2	-	0	16
	8103	State source 2	-	See Line no. 8101
	8104	Priority source 3	-	0	16
	8105	State source 3	-	See Line no. 8101
	8106	Priority source 4	-	0	16
	8107	State source 4	-	See Line no. 8101
	8108	Priority source 5	-	0	16
	8109	State source 5	-	See Line no. 8101
	8110	Priority source 6	-	0	16
	8111	State source 6	-	See Line no. 8101
	8112	Priority source 7	-	0	16
	8113	State source 7	-	See Line no. 8101
	8114	Priority source 8	-	0	16
	8115	State source 8	-	See Line no. 8101
	8116	Priority source 9	-	0	16
	8117	State source 9	-	See Line no. 8101
	8118	Priority source 10	-	0	16
	8119	State source 10	-	See Line no. 8101
	8120	Priority source 11	-	0	16
	8121	State source 11	-	See Line no. 8101
	8122	Priority source 12	-	0	16
	8123	State source 12	-	See Line no. 8101
	8124	Priority source 13	-	0	16
	8125	State source 13	-	See Line no. 8101

*See manual boiler

Menu	Line no.	Operating line	Unit	Min. Max		Factory setting
Diagnostics Cascade	8126	Priority source 14	-	0	16	Indication only
	8127	State source 14	-	See Line no. 8101
	8128	Priority source 15	-	0	16
	8129	State source 15	-	See Line no. 8101
	8130	Priority source 16	-	0	16
	8131	State source 16	-	See Line no. 8101
	8138	Cascade flow temp	°C	0	140
	8139	Cascade flow temp setpoint	°C	0	140
	8140	Cascade return temp	°C	0	140
	8141	Cascade return temp	°C	0	140
	8150	Source seq ch'over current	h	0	990
Diagnostics heat generation	8304	Boiler pump Q1	-	Off, On		Indication only
	8308	Boiler pump speed	%	0	100
	8310	Boiler temp	°C	0	140
	8311	Boiler setpoint	°C	0	140
	8312	Boiler switching point	°C	0	140
	8313	Inst heater switching point	°C	0	140
	8314	Boiler return temp	°C	0	140
	8316	Flue gas temp	°C	0	350
	8318	Flue gas temp max	°C	0	350
	8321	Primary exchanger temp	°C	0	140
	8323	Fan speed	rpm	0	8000
	8324	Setpoint fan	rpm	0	8000
	8325	Current fan control	%	0	100
	8326	Burner modulation	%	0	100
	8327	Water pressure	-	0	10
	8329	Ionization current	μA	0	100
	8330	Hours run 1st stage	h	00:00:00	2730:15:00
	8331	Start counter 1st stage	-	0	2147483647
	8338	Hours run heating mode	h	00:00:00	8333:07:00
	8339	Hours run DHW	h	00:00:00	8333:07:00
	8390	Current phase number	-	0: Value 777; 01: TNB254: Wert 777; 254255: Wert 777; 255
	8499	Collector pump 1	-	Off, On
	8501	Solar ctrl element buffer	-	Off, On
	8502	Solar ctrl elem swimming	-	Off, On
	8505	Speed collector pump 1	%	0	100
	8506	Speed solar pump ext exch	%	0	100

Parameters professional installer

Menu	Line no.	Operating line	Unit	Min.	Max	Factory setting
Diagnostics heat generation	8507	Speed solar pump buffer	%	0	100	Indication only
	8508	Speed solar pump swi pool	%	0	100
	8510	Collector temp 1	°C	-28	350
	8511	Collector temp 1 max	°C	-28	350
	8512	Collector temp 1 min	°C	-28	350
	8513	dT collector 1/DHW	°C	-168	350
	8514	dT collector 1/buffer	°C	-168	350
	8515	dT collector 1/swimming pool	°C	-168	350
	8519	Solar flow temp	°C	-28	350
	8520	Solar return temp	°C	-28	350
	8526	24-hour yield solar energy	kWh	0	999,9
	8527	Total yield solar energy	kWh	0	9999999,9
	8530	Hours run solar yield	h	00:00:00	8333:07:00
	8531	Hours run collect overtemp	h	00:00:00	8333:07:00
	8532	Hours run collector pump	h	00:00:00	8333:07:00
	8560	Solid fuel boiler temp	°C	0	140
	8570	Hours run solid fuel boiler	h	00:00:00	8333:07:00
Diagnostics consumers	8700	Outside temp	°C	-50	50	Indication only
	8701	Outside temp min	°C	-50	50
	8702	Outside temp max	°C	-50	50
	8703	Outside temp attenuated	°C	-50	50
	8704	Outside temp composite	°C	-50	50
	8730	Heating circuit pump 1	-	Off, On
	8731	Heat circ mix valve 1 open	-	Off, On
	8732	Heat circ mix valve 1 close	-	Off, On
	8735	Speed heating circuit pump 1	%	0	100
	8740	Room temp 1	°C	0	50
	8741	Room setpoint 1	°C	4	35
	8743	Flow temp 1	°C	0	140
	8744	Flow temp setpoint 1	°C	0	140
	8749	Room thermostat 1	-	No demand, demand
	8760	Heating circuit pump 2	-	Off, On
	8761	Heat circ mix valve 2 open	-	Off, On
	8762	Heat circ mix valve 2 close	-	Off, On
	8765	Speed heating circuit pump 2	%	0	100
	8770	Room temp 2	°C	0	50
Diagnostics consumers	8771	Room setpoint 2	°C	4	35	Indication only
	8773	Flow temp 2	°C	0	140
	8774	Flow temp setpoint 2	°C	0	140
	8779	Room thermostat 2	-	No demand, demand
	8790	Heating circuit pump 3	-	Off, On
	8791	Heat circ mix valve 3 open	-	Off, On
	8792	Heat circ mix valve 3 close	-	Off, On
	8795	Speed heating circuit pump 3	%	0	100
	8800	Room temp 3	°C	0	50
	8801	Room setpoint 3	°C	4	35
	8803	Flow temp 3	°C	0	140
	8804	Flow temp setpoint 3	°C	0	140
	8809	Room thermostat 3	-	No demand, demand
	8820	DHW pump	-	Off, On
	8825	Speed DHW pump	%	0	100
	8826	Speed DHW interm circ pump	%	0 100
	8827	Speed inst DHW heater pump	%	0 100
	8830	DHW temp 1	°C	0	140
	8831	DHW temp setpoint	°C	8	80
	8832	DHW temp 2	°C	0	140
	8835	DHW circulation temp	°C	0	140
	8836	DHW charging temp	°C	0	140
	8852	DHW consumption temp	°C	0	140
	8853	Instant WH setpoint	°C	0	140
	8860	DHW flow	l/min	0	30
	8875	Flow temp setpoint VK1	°C	5	130
	8885	Flow temp setpoint VK2	°C	5	130
	8895	Flow temp setpoint VK3	°C	5	130
	8900	Swimming pool temp	°C	0	140
	8901	Swimming pool setpoint	°C	8	80
	8930	Primary controller temp	°C	0	140
	8931	Primary controller setpoint	°C	0	140
	8950	Common flow temp	°C	0	140
	8951	Common flow temp setpoint	°C	0	140
	8952	Common return temp	°C	0	140
Diagnostics consumers	8962	Common output setpoint	%	0	100	Indication only
	8980	Buffer temp 1	°C	0	140
	8981	Buffer setpoint	°C	0	140
	8982	Buffer temp 2	°C	0	140
	8983	Buffer temp 3	°C	0	140
	9005	Water pressure H1	bar	0	10
	9006	Water pressure H2	bar	0	10
	9009	Water pressure H3	bar	0	10
	9031	Relay output QX1	-	Off, On
	9032	Relay output QX2	-	Off, On
	9033	Relay output QX3	-	Off, On
	9034	Relay output QX4	-	Off, On
	9050	Relay output QX21 module 1	-	Off, On
	9051	Relay output QX22 module 1	-	Off, On
	9052	Relay output QX23 module 1	-	Off, On
	9053	Relay output QX21 module 2	-	Off, On
	9054	Relay output QX22 module 2	-	Off, On
	9055	Relay output QX23 module 2	-	Off, On
	9056	Relay output QX21 module 3	-	Off, On
	9057	Relay output QX22 module 3	-	Off, On
	9058	Relay output QX23 module 3	-	Off, On
	-	2nd speed HC1 pump Q21	-	Off, On		Indication only
	-	Optg mode changeover HC1	-	Inactive, Active
	-	2nd speed HC2 pump Q22	-	Off, On
	-	Optg mode changeover HC2	-	Inactive, Active
	-	2nd speed HC2 pump Q23	-	Off, On
	-	Optg mode changeover HC3	-	Inactive, Active
	-	EI imm heater K6	-	Off, On
	-	Circulating pump Q4	-	Off, On
	-	Optg mode changeover DHW	-	Inactive, Active
	-	H1 pump Q15	-	Off, On
	-	H2 pump Q18	-	Off, On
	-	H3 pump Q19	-	Off, On
	-	Prim contr/system pump Q14	-	Off, On

Parameters professional installer

Menu	Line no.	Operating line	Unit	Min.	Max	Factory setting*
Diagnostics consumers	-	Precontroller mixing valve opens Y19	- Off, On			Indication only
	-	Precontroller mixing valve closes Y20	- Off, On
	- Heat generation lock Y4 - Off, On
	-	Time switch program 5 relais K13	- Off, On
	- Return temp valve Y15 - Off, On
	- Heat demand K27 - Off, On
	-	Instantaneous heater pump Q34	- Off, On
	-	Storage transfer pump Q11	- Off, On
	- DHW stirring pump Q35 - Off, On
	-	DHW intermediate circuit pump Q33	- Off, On
	- Flowswitch - Off, On
Burner control	9500	Prepurge time	s	0	51
	9512	Required speed ignition	rpm		10000
	9524	Required speed LF	rpm	0	10000
	9529	Required speed HF	rpm	0	10000
	9540	Postpurge time	s	0	51
	9615	Forced prepurging on error	- Off, On
	9650	Chimney drying	-	Off, Temporarily, Permanently

*See manual boiler

Info menu

Manual control

Chimney sweeper function

Controller stop function

Display of information

Various data can be displayed by pressing the info button.

Possible info

Depending on the type of unit, the configuration and operating state, some of the info lines listed below may not appear.

• Error message
• Maintenance message
• Room temperature
  • Room temperature minimum
  • Room temperature maximum
• Boiler temperature

• Outside temperature
  • Outside temperature minimum
  • Outside temperature maximum

• DHW temperature
  • State of Boiler
  • State of DHW
  • State of HC1/2

• Time / Date
  • Telephone customer service

Manual control

When manual control is activated, the relays are no longer energized and deenergized according to the control status but are set to a predefined manual control status in accordance with their functions.

Boiler, Heating circuit, Transport and DHW pump are switched ON, Buffer pump is OFF.

The heating circuit mixer on the AVS75 controls to half of average value.

Setpoint adjustment in manual operation

After manual operation has been activated, a change to the basic display must be made where the service / special mode symbol appears:

The setpoint for manual control can be adjusted in the Boiler menu on parameter 2214.

Chimney sweep function

To start the chimney sweep function, press the button for a moment (<3 seconds). This function produces the operating state required to make emission measurements (flue gas).

Controller stop function

To start the chimney sweep function, hold the operation mode button for >3 seconds).

The controller stop function sets the burner to a fixed modulation. This function can be used to make emission measurements (flue gas).

To deactivate the function hold the operation mode button for >3 seconds.

Error / Maintenance messages

In exceptional cases, the basic display shows one of the following symbols.

Error messages

If this symbol appears, an error in the plant occurred. Press the info button and read further information.

Maintenance/special operation

If this symbol appears, a maintenance alarm is delivered or the plant has changed to special mode. Press the info button and read further information.

List of display

Error codes

Error code	Error description
0	No error
10	Outside temperature sensor error
20	Boiler temperature 1 sensor error
26	Common flow temperature sensor error
28	Flue gas temperature sensor error
30	Flow temperature 1 sensor error
32	Flow temperature 2 sensor error
38	Flow temperature primary controller sensor error
40	Return temperature 1 sensor error
46	Return temperature cascade sensor error
47	Common return temperature sensor error
50	DHW temperature 1 sensor error
52	DHW temperature 2 sensor error
54	DHW primary controller sensor error
57	DHW circulation temperature sensor error
60	Room temperature 1 sensor error
65	Room temperature 2 sensor error
70	Buffer storage tank temperature 1 sensor error
71	Buffer storage tank temperature 2 sensor error
72	Buffer storage tank temperature 3 sensor error
73	Collector temperature 1 sensor error
74	Collector temperature 2 sensor error
82	LPB address collision
83	BSB wire short-circuit
84	BSB address collision
85	BSB RF communication error
91	EEPROM error lockout information
98	Extension module 1 error (collective error)
99	Extension module 2 error (collective error)
100	2 clocktime masters (LPB)

List of display

Error codes

Error code	Error description
102	Clocktime master without reserve (LPB)
103	Communication error
105	Maintenance message
109	Boiler temperature supervision
110	STB lockout
111	TW cutout
121	Flow temperature 1 (HC1) supervision
122	Flow temperature 2 (HC2) supervision
125	Pump supervision error
126	DHW charging supervision
127	Legionella temperature not reached
128	Loss of flame during operation
129	Fan error or LP error
130	Flue gas temperature limit exceeded
131	Burner fault
132	GP or LP error
133	No flame during safety time
146	Configuration error collective message
151	Internal error
152	Parameterization error
153	Unit manually locked
160	Fan error
162	LP error, does not close
164	Error heating circuit flow switch
166	LP error, does not open
171	Alarm contact H1 or H4 active
172	Alarm contact H2 (EM1, EM2 or EM3) or H5 active
173	Alarm contact H6 active
174	Alarm contact H3 or H7 active
178	Limit thermostat heating circuit 1
179	Limit thermostat heating circuit 2
183	Unit in parameterization mode
193	Pump supervision error after flame on
216	Fault boiler
217	Fault sensor
241	Flow sensor solar sensor error
242	Return sensor solar sensor error
243	Swimming pool temperature sensor error
270	Limit function
317	Mains frequency outside permissible range
320	DHW charging temperature sensor error
324	BX same sensors
325	BX / extension module same sensors
326	BX / mixing group same sensors
327	Extension module same function
328	Mixing group same finction
329	Extension module / mixing group same function

List of display

Error codes

Error code	Error description
330	Sensor BX1 no function
331	Sensor BX2 no function
332	Sensor BX3 no function
333	Sensor BX4 no function
334	Sensor BX5 no function
335	Sensor BX21 no function (EM1, EM2 or EM3)
336	Sensor BX22 no function (EM1, EM2 or EM3)
337	Sensor BX1 no function
338	Sensor BX12 no function
339	Collector pump Q5 not available
340	Collector pump Q16 not available
341	Solar Collector sensor B6 not available
342	DHW sensor B31 not available
343	Solar integration not available
344	Solar controlling element buffer K8 not available
345	Solar ctrl element swimming pool K18 not available
346	Solid fuel boiler pump Q10 not available
347	Solid fuel boiler comparison sensor not available
348	Solid fuel boiler address error
349	Buffer return valve Y15 not available
350	Puffer address sensor
351	Primary controller / system pump address error
352	Pressureless header address error
353	Common flow sensor B10 not available
371	Flow temperature 3 (heating circuit 3) supervision
372	Limit thermostat heating circuit 3
373	Extension module 3 error (collective error)
349	Buffer return valve Y15 not available
350	Puffer address sensor
351	Primary controller / system pump address error
352	Pressureless header address error
353	Common flow sensor B10 not available
371	Flow temperature 3 (heating circuit 3) supervision
372	Limit thermostat heating circuit 3.
373	Extension module 3 error (collective error)
386	Fan speed has lost valid range
388	DHW error no function
426	Feedback flue gas damper
427	Configuration flue gas damper
431	Sensor primary heat exchanger
432	Functional earth not connected
433	Temperature primary heat exchanger to high

Maintenance codes

Maintenance code	Maintenance description
1	Burner hours run exceeded
2	Burner starts exceeded
3	Maintenance interval exceeded

Detailed settings

Menu: time of day and date

Time of day and date

The controller has a yearly clock with time of day, weekday and date. To ensure the controller's functionality, both the time of day and the date must be correctly set.

Summer- / wintertime changeover

The dates set for the changeover from wintertime to summertime, and vice versa, ensure that on the first Sunday after the set date the time of day will change from 02:00 (wintertime) to 03:00 (summertime), and from 03:00 (summertime) to 02:00 (wintertime).

Line no. Operating line Factory setting

1 Hours / minutes
2 Day / month
3 Year
5 Start of summer time
6 End of summer time

See manual boiler

Menu: Operator section

Operation and display

Language

Available languages vary depending on country and version.

Info

Temporarily:

After pressing the Info-button the Info display will appear. After 8 min. the basic display will reappear.

Permanently:

After activation the Info display will be shown permanently.

Operation lock

When operation lock is activated, the following operating elements can no longer be adjusted:

• Heating circuit operating mode
• DHW operating mode
• Room comfort setpoint (setting knob)
• Presence button

Programming lock

When programming lock is activated, parameter values can still be displayed, but can no longer be changed.

• Temporary deactivation of the programming lock Within the programming level, the programming lock can temporarily be overridden. To do this, press the OK and ESC buttons simultaneously for 3 seconds. Temporary deactivation of the programming lock is maintained until programming is quit.

- Constant deactivation of programming lock First, make the temporary deactivation, then go to operating line 27 Programming lock and deactivate the programming lock.

Direct adjustment

Automatic storage:

Altered values are stored without confirming with the OK-button.

Line no.	Operating line Factory setting
20	Language	See manual boiler
22	Info
	Temporarily Permanently
26	Operation lock
27	Programming lock
28	Direct adjustment
44	Operation HC2 Jointly with HC1 Independently
46	Operation HC3/P Jointly with HC1 Independently
70	Software Version Indication only

Storage with confirmation:

Altered values are only stored after confirmation with the OK-button.

Operation HC2

Depending on operation line 40, the action of operation (operating mode button or rotary knob) on room unit 1, on the operator unit or service unit can be defined for HC2.

Jointly with HC1:

Operation acts commonly on HC1 and 2.

Independently:

The action of operation is queried on the display as soon as the operating mode button is pressed or the rotary knob is operated.

Operation HC3/P

Depending on operation line 40, the action of operation (operating mode button or rotary knob) on room unit 1, on the operator unit or service unit can be defined for HC3/P.

Jointly with HC1:

Operation acts commonly on HC1 and 2.

Independently:

The action of operation is queried on the display as soon as the operating mode button is pressed or the rotary knob is operated

Software version

The display shows the current version of the operator/room unit.

Menu: Time programs

Menu: Holiday

For the heating circuits and for DHW heating, a number of switching programs are available. They are activated in Automatic operation and control the change of the temperature levels (and the associated setpoints) via the selected switching times.

Entering the switching times

The switching times can be set in a combined way, that is, either jointly for several days or in the form of separate times for individual days. When preselecting groups of days like for instance Mo...Fr and Sa...Su that use the same switching times, the setting of switching programs is simplified.

Switching points

Line no.					Operating line	Factory setting
HC1	HC2	3/HC3	4/DHW	5
500	520	540	560	600	PreselectionMo - SuMo - FrSa - SuMo - Su	See manual boiler
501	521	541	561	601	1. phase on
502	522	542	562	602	1. phase off
503	523	543	563	603	2. phase on
504	524	544	564	604	2. phase off
505	525	545	565	605	3. phase on
506	526	546	566	606	3. phase off

Standard program

All time programs can be reset to their default setting. Each time program hat its own operating line to make this reset.

Line no.					Operating line	Factory setting
HC1	HC2	3/HC3	4/DHW	5
516	536	556	576	616	Default values	See manual boiler

Note: In that case, individual setting will be lost!

Holiday

The holiday program allows switching the operating level of the HCs according to date. On the last day heating is still deactivated. On the following day heating to comfort setpoint will commence according to the time program.

Line no. Operating line Factory setting
HC1	HC2
641	651	PreselectionPeriod 1, 2, 3, 4, 5, 6, 7, 8	See manual boiler
642	652	start
643	653	end
648	658	Operating levelFrost protectionReduced

The holiday program can only be used in automatic mode.

For heating circuits, there are various functions available which can be individually set for each heating circuit.

Operating mode HCs

The operating modes of heating circuits are selected directly with the operating mode button. This setting is used to switch between different operating modes. Functionality corresponds to the operating mode selection via the operating mode button.

Protection

Continuous operation (24 hours) at the frost protection level. Switching program, occupancy button, holiday program, optimum start / stop control and ECO program have no impact. Control to room temperature frost protection can be deactivated. This may become necessary if a room thermostat is used for activating the boiler pump. In that case, it is only the room thermostat that prevents the room temperature from dropping. It should be considered however that when the flow temperature drops, the limit thermostat might cut out. The limit thermostat's cut-out temperature is 0 °C. This means that cutout must be prevented by appropriate setting of the room thermostat.

Automatic

Automatic operation at the Comfort, reduced or frost protection level in accordance with the switching program, the occupancy button, the holiday program, optimum start / stop control and the ECO function.

Line no. Operating line Factory setting
HC1	HC2	HC3
700	1000	Operating Mode HC Protection Automatic Reduced Comfort	See manual boiler

Reduced

Continuous operation (24 hours) at the reduced level. Switching program, occupancy button, holiday program, optimum start / stop control and ECO program have no impact. The protective functions will remain active.

Comfort

Continuous operation (24 hours) at the Comfort level. Switching program, occupancy button, holiday program, optimum start / stop control and ECO program have no impact. The protective functions will remain active.

For heating circuits, there are various functions available which can be individually set for each heating circuit.

Room setpoint

Room temperature

The room temperature can be shifted according to different setpoints. These setpoints become active depending on the selected operating mode, thus producing different temperature levels in the rooms. The ranges of adjustable setpoints result from the interdependencies, as this is shown in the following diagram.

Frost protection

In protection mode, the room temperature is prevented from falling below a certain level. This means that the frost protection setpoint of the room temperature will be maintained.

Line no. Operating line Factory setting
HC1 HC2		HC3
710 1010 Comfortpoint				See manual boiler
712	1012	1312	Reduced setpoint
714	1014	1314	Frost protection

TRKmax Comfort setpoint maximum
TRK Comfort setpoint
TRR Reduced setpoint
TRF Frost protection setpoints

Heating curve

The heating curve is used to generate the flow temperature setpoint, which is used to maintain a certain flow temperature level depending on the prevailing weather conditions.

The heating curve can be adjusted with a number of setting, thus matching heat output and room temperature to individual needs.

Heating curve slope

As the heating curve slope is raised, the flow temperature increases quicker at lower outside temperature. In other words, if the room temperature is not correct at low outside temperatures but correct at higher outside temperatures, the heating curve slope requires readjustment.

Increase adjustment:

Raises the flow temperature, especially when outside temperatures are low.

Decrease adjustment:

Lowers the flow temperature, especially when outside temperatures are low.

Line no. Operating line Factory setting
HC1 HC2 HC3
720 - - Heating curve slope				See manual boiler
- 1020 - Heating curve slope
-	-	1320	Heating curve slope
721	1021	1321	Heating curve displacement
726	1026	1326	Heating curve adaption

Menu: Heating circuits

Heating curve displacement

Parallel displacement of the heating curve is used to change the flow temperature evenly across the entire outside temperature range. In other words, if the room temperature is always too high or too low, a readjustment must be made with the help of the parallel displacement.

Line no. Meaning
8700 TA Readjustm outside
TRw Room temp setpoint
TV Flow temp

Heating curve adaption

Adaption of the heating curve is used by the controller to automatically adapt the heating curve to the prevailing conditions. In that case, a readjustment of heating curve slope and parallel displacement is not required. It can only be switched on or off.

To assure this function, following must be observed:

• A room sensor must be connected
• The Room influence setting must be selected between 1 and 99
- There should be no thermostatic radiator valves in the reference room (mounting location of room sensor) (if such valves are present, they must be set to their fully open position).

Menu: Heating circuits

ECO-Function

Summer/winter heating limit

The summer / winter heating limit is used to switch the heating on and off in the course of the year, depending on temperature conditions. In automatic mode, switching on / off takes place automatically, so there is not need for the user to do this manually. By changing the setting, the respective periods of time will be shortened or extended.

Increase:

Winter operation will start earlier. Summer operation will start later.

Decrease:

Winter operation will start later. Summer operation will start earlier.

• The function is not active in operating mode Comfort
  • The display shows ECO
• To incorporate the building's thermal dynamics, the outside temperature is attenuated

Line no. Operating line Factory setting
HC1 HC2 HC3
730	1030	1330	Summer/winter heating limit	See manual boiler
732	1032	1332	24-hour heating limit
733	1033	1333	Ext'n 24-hour heating limit

24-hour heating limit

The 24-hour heating limit is used to switch the heating on and off in the course of the day, depending on the outside temperature. This function is used primarily during spring and autumn to respond to short-term temperature variations.

By changing the value entered, the respective heating periods will be shortened or extended.

Increase: Heating mode will start earlier. Changeover to ECO later. Decrease: Heating mode will start later. Changeover to ECO earlier.

• The function is not active in operating mode Continuously comfort temperature.
  • The display shows ECO
• To give consideration to the building's thermal dynamics, the outside temperature will be attenuated.

Example

Setting line E.g.
Comfort setpoint (TRw)	22°C
24-hour heating limit (THG)	-3°C
Changeover temperature (TRw-THG) heating OFF	= 19°C

Switching differential (fixed)	-1°C
Changeover temperature heating ON	= 18°C

Ext'n 24-hour heating limit

The 24-hour heating limit is extended by giving consideration to the composite outside temperature when the heating is switched on. Alternatively, the heating can be switched on again only dependent on the current outside temperature.

No

The 24-hour heating limit applies only dependent on the current outside temperature.

Yes

The 24-hour heating limit applies as described under 24-hour heating limit, depending on both the current and the composite outside temperature.

Menu: Heating circuits

Flow temp setpoint min/ max

Using this limitation, a temperature range for the flow temperature setpoint can be defined. If the flow temperature setpoint demanded by the heating circuit reaches the relevant limit and the heat request increases or decreases, the flow temperature setpoint will be maintained at the maximum or minimum limit.

Line no. Operating line Factory setting
HC1 HC2 HC3
740	1040	1340	Flow temp setpoint min	See manual boiler
741 -	- Flow temp setpoint max HC1
- 1041 - Flow temp setpoint max HC2
- - 1341 Flow temp setpoint max HC3
742 -	- Flow temp setpoint room stat HC1
- 1042 - Flow temp setpoint room stat HC2
- - 1342 Flow temp setpoint room stat HC3
746	1046	1346	Delay heat request

Legend
TVw Current flow temperature setpoint
TVmax Flow temperature setpoint maximum
TVmin Flow temperature setpoint minimum

Room influence

Type of compensation

When a room temperature sensor is used, there is a choice of 3 different types of compensation.

Line no.			Operating line	Factory setting
HC1	HC2	HC3
750	1050	1350	Room influence	See manual boiler

Setting	Type of compensation
- - - %	Pure weather compensation *
1...99 %	Weather compensation with room influence *
100 %	Pure room compensation

Pure weather compensation

The flow temperature is calculated via the heating curve, depending on the composite outside temperature. This type of compensation calls for a correct adjustment of the heating curve since in this case the control gives no consideration to the room temperature.

Weather compensation with room influence

Deviations of the actual room temperature from the setpoint are acquired and taken into account when controlling the temperature. Heat gains can thus be considered, facilitating more accurate room temperature control. The authority of deviation is set as a percentage figure. The better the reference room (correct room temperature, correct mounting location, etc.) the higher the value can be set.

* Outside sensor required.

To activate the function, following must be considered:

• A room sensor must be connected
  • Room influence must be set to a value between 1 and 99 %
• There should be no thermostatic radiator valves in the reference room (mounting location of the room sensor) (if such valves are present, they must be set to their fully open position).

Example:

Approx. 60 % Good reference room conditions

Approx. 20 % Unfavorable reference room

Pure room compensation

The flow temperature is controlled depending on the room temperature setpoint, the current room temperature and the progression of the room temperature. For example, a slight increase of the room temperature causes an immediate drop of the following temperature.

To activate the function, following must be considered:

• A room sensor must be connected
• Room influence must be set to 100 %
- There should be no thermostatic radiator valves in the reference room (mounting location of the room sensor) (if such valves are present, they must be set to their fully open position)

Menu: Heating circuits

Room temperature control and limitation

With the room temperature limitation function, the heating circuit pump can be disabled if the room temperature exceeds the current room temperature setpoint by more than the preset differential.

The room temperature limitation does not work in the case of pure weather compensation.

Line no. Operating line Factory setting
HC1	HC2	HC3
760	1	060	Room 1860 limitation		See manual boiler

Boost heating

Boost heating is used to reach the new setpoint more quickly when switching from the reduced setpoint to the comfort setpoint, thus reducing the heat-up time. During boost heating, the room temperature setpoint is raised by the value set here. A higher setting leads to shorter heat-up times, a lower setting to longer heat-times.

Boost heating is possible with or without room sensor.

Line no. Operating line Factory setting
HC1	HC2	HC3
770	1070	1370	Boost heating	See manual boiler

Quick setback

During quick setback, the heating circuit pump is deactivated and, in the case of mixing valve circuits, the mixing valve is fully closed.

Function with room sensor:

• When using the room sensor, the function keeps the heating switched off until the room temperature has dropped to the level of the reduced setpoint or the frost level. When the room temperature has fallen to the reduced level or the frost level, the heating circuit pump will be activated and the mixing valve will be released.
• Function without room sensor: Quick setback switches the heating off for a certain period of time, depending on the outside temperature and the building time constant.
• Quick setback is possible with or without a room sensor.

Line no.			Operating line	Factory setting
HC1 HC2 HC3
780	1080	1380	Quick setbackOffDown to reduced setpointDown to frost prot setpoint	See manual boiler

Example:

Duration of quick setback when comfort setpoint minus reduced setpoint = 2 °C (e.g. comfort setpoint = 20 °C and reduced setpoint = 18 °C)

Outside temp composite	Time constant building (Line no. 6110)
	0	2	5	10	15	20	50
15 °C	0	3.1	7.7	15.3	23	30.6	76.6
10 °C	0	1.3	3.3	6.7	10	13.4	33.5
5 °C	0	0.9	2.1	4.3	6.4	8.6	21.5
0 °C	Frost protection
	Duration of quick setback in hours

When differential between Comfort setpoint and reduced setpoint is f.e. 4^ C, the default values in the table will be doubled.

Menu: Heating circuits

Optimum start / stop control

Optimum start control max

The change from one temperature level to the other is optimized in a way that the comfort setpoint is reached at the relevant switching time.

Optimum stop control max

The change from one temperature level to the other is optimized in a way that the comfort setpoint minus 14 °C is reached at the relevant switching time.

- Optimum start / stop control is possible with or without room sensor.

Line no. Operating line Factory setting
HC1 H	C2 HC3
790	1090	1390	Optimum start control max	See manual boiler
791	1091	1391	Optimum stop control max

Raising the reduced setpoint

The function is used primarily in connection with heating systems with only little spare capacity (e.g. low-energy houses).

In such cases, the heating up time would be too long at low outside temperatures. When the reduced setpoint is raised, the rooms are prevented from cooling down to too low levels, thus shortening the heating up time when changing to the comfort setpoint.

Line no. Operating line Factory setting
HC1 HC2 HC3
800	1100	1400	Reduced setp increase start	See manual boiler
801	1101	1401	Reduced setp increase end

Overtemperature protection

Overtemperature protection for pump heating circuit

In the case of heating plant with pump heating circuits, the flow temperature of the heating circuit can be higher than the flow temperature demanded by the heating curve, due to requests from other heat consumers (mixing heating circuit, DHW charging, external heat demand), or a parameterized minimum boiler temperature.

Line no.			Operating line	Factory setting
HC1	HC2	HC3
820	1120	1420	Overtemperature protection forPump heating circuitOffOn	See manual boiler

As a result of this too high flow temperature, the pump heating circuit would assume excessive temperatures. The function overtemperature protection for pump heating circuits ensures that the energy supply for pump heating circuits corresponds to the demand from the heating curve by activating / deactivating the pump.

The cycling period is fixed at 10 min. This period of time is broken down according to a time ration. The pump's running time is set to a minimum of 3 minutes. The pump's off time is set to a minimum of 2 minutes.

Menu: Heating circuits

Mixing valve control

Mixing valve boost

To ensure proper mixing valve flow temperature control, the flow temperature must be higher than the demanded setpoint of the mixing valve flow temperature. The value set here is added to the request.

The selection of the type of actuator determines the control behavior for the type of mixing valve actuator used.

Line no. Operating line Factory setting
HC1 H	C2 HC3
830	1130	1430	Mixing valve boost	See manual boiler
832	1132	1432	Actuator typ Position-2 Position-3
833	1133	1433	Switching differential 2-pos
834	1134	1434	Actuator running time
835	1135	1435	Mixing valve Xp
836	1136	1436	Mixing valve Tn

2-position

The controller drives the actuator with only one relay output. When the output delivers a signal, the valve opens. If the signal is missing, the valve will automatically close (thermally or mechanically).

If the flow temperature lies more than half the switching differential below the setpoint, relay "Mixing valve opening" will be energized and remains energized until the flow temperature exceeds the setpoint by half the switching differential.

3-position

The controller drives the actuator with 2 relay outputs. One of the outputs is used for opening the valve and one for closing the valve. If none of the relays is energized, the actuator maintains its position.

Control is accomplished with a PID controller, whereby XP and TN can be parameterized. The actuator running time can also be set. The controller's neutral zone is +/- 1K. In the case of difficult controlled systems, the control parameters can be matched to the system.

Switching differential 2-pos

For the 2-position actuator, the 2-position switching differential must also be adapted. This is not required when using a 3-position actuator.

Actuator running time

Setting the running time of the actuator used with the mixing valve.

Mixing valve Xp

The mixing valve's P-band can be adjusted, thereby matching the control behavior of the vale's actuator to that of the plant (controlled system). Xp influences the controller's P-behavior.

Mixing valve Tn

The mixing valve's integral action time can be adjusted, thereby matching the control behavior of the vale's actuator to that of the plant (controlled system). Tn influences the controller's l-behavior.

Menu: Heating circuits

Floor curing function

The floor curing function ensures controlled drying of the floor. It controls the flow temperature according to a temperature profile. Drying of the floor is ensured via the floor heating system and the mixing or pump heating circuit.

Floor curing function

Off

Function is deactivated.

Functional heating

The first part of the temperature profile is automatically completed.

Curing heating

The second part of the temperature profile is traversed automatically.

Functional/curing heating

The entire temperature profile (first and second part) is passed automatically.

Manually

It is not a temperature profile that is completed, but the floor setpoint is controlled manually.

Floor curing setp manually

The flow temperature setpoint for the manual floor-curing function can be set separately for each heating circuit.

Floor curing setp current

Shows the current flow temperature setpoint while the floor-curing function is in progress.

Floor curing day current

Shows the current weekday of the floor-curing function in progress.

Line no. Operating line Factory setting
HC1 HC2 HC3
850	1150	1450	Floor curing functionOffFunctional heatingCuring heatingFunctional/curing heatingManually	See manual boiler
851	1151	1451	Floor curing setp manually
855	1155	1455	Floor curing setp current
856	1156	1456	Floor curing day current

• Observe the relevant standards and regulations of the floor manufacturer
• Proper functioning is ensured only when the plant is correctly installed (hydraulic
  system, electrical installation, setting)! If not observed, the floor might get damaged

- The function can be aborted by choosing Off

• Maximum limitation of the flow temperature remains active

Menu: Heating circuits

Excess heat draw

Excess heat draw can be triggered by the following functions:

• Inputs Hx
• Storage tank recooling
• Solit fuel boiler excess heat draw

When dissipation of excess heat is activated, it can be draw by space heating. This can be adjusted separately for each heating circuit.

Off

Excess heat draw is deactivated.

Heating mode

Excess heat is drawn only when the controller operates in heating mode.

Always

Excess heat is drawn in all operating modes.

Line no. Operating line Factory setting
HC1	HC2	HC3
861	1	161	Excess46at	drawOffHeating modealways	See manual boiler

With buffer

If there is a buffer storage tank, specify whether the heating circuit can draw heat from it. When using alternative heat sources, the buffer storage tak temperature is used as a control criteria for the release of additional heat sources.

Line no. Operating line				Factory setting
HC1	HC2	HC3
870	1170	1470	With bufferNoYes	See manual boiler
872	1172	1472	With prim/contr system pumpNoYes

With prim/contr system pump

Specify whether the heating circuit receives its heat via the primary controller or with the help of the system pump (depending on the type of plant).

Menu: Heating circuits

Flow setp readj speed ctrl

Here, it can be determined whether or not the calculated readjustment of the flow temperature setpoint shall be included in the temperature request.

Line no. Operating line Factory setting
HC1 HC2 HC3
890	1190	1490	Flow setp readj speed ctrlNoYes	See manual boiler

Remote control

Operating level changeover

The operating level to which the heating circuits shall be switched can be selected via an external time switch and inputs Hx.

Optg mode changeover

The heating circuit can be forced to adopt a selected mode via the H input by operating a contact. The operating mode required when the changeover is made can be defined in the “Operating mode changeover” parameters for each heating circuit. In that case, selection of the operating modes on the controller is locked.

Line no. Operating line Factory setting
HC1	HC2	HC3
898	1198	1498	Operating level changeoverFrost protectionReducedcomfort	See manual boiler
900	1200	1500	Optg mode changeoverNoneProtectionReducedComfortAutomatic

Menu: DHW

Operating mode

The DHW operating mode is operated directly via operating button.

Off

Continuous operation, the setpoint being the DHW frost protection setpoint (5 °C).

On

DHW charging takes place automatically, the setpoint being the nominal DHW setpoint or the reduced DHW setpoint based on the selected kind of DHW release.

Line no.	Operating line Factory setting
1600	Operating modeOffOn	See manual boiler

Setpoints

The DHW setpoint acting on the control is selected based on the current operating level which includes impact of the operating mode, the release (possibly the switching program), the DHW push and the0 legionella function.

Nominal setpoint

Backup temperature inside the release.

Reduced setpoint

Backup temperature outside the release.

Line no. Operating line Factory setting
1610 Nominal setpoint	See manual boiler
1612 Reduced setpoint

Line no.	Operating line	Factory setting
1620 Release24h/dayTime programs HCsTime program 4/D HW		See manual boiler

24h/Day

When this setting is used, DHW heating is continuously released as long as it is switched on. The DHW setpoint is always the nominal setpoint, unless the legionella function has been activated.

Time programs HCs

When this setting is used, DHW heating is released during the occupancy times of the connected heating circuits. If at least one of the heating circuits is at the Comfort level, DHW heating will also be released. If all heating circuits are at the reduced level or in protective mode, the DHW level will also be set to reduced.

Time program 4/DHW

When using this setting, a specific time program is available for DHW heating. For every weekday, a time program with a maximum of three on phases can be set. During the release time, the nominal DHW setpoint applies, outside the release time, the reduced DHW setpoint. If the legionella function is pending, it will be performed when DHW heating is released for the first time in the morning. Setting "Once / several times per day" has no impact. If DHW heating is switched off, the frost protection setpoint will apply.

Charging priority

When both space heating and DHW heating call for heat, the DHW priority function ensures that while DHW charging is in progress, the boiler's capacity is used primarily for DHW heating.

Line no.	Operating line	Factory setting
1630	Charging priorityAbsoluteShiftingNoneMC shifting, PC absolute	See manual boiler

With diverting valves, the function is automatically deactivated.

Absolute

The mixing and pump heating circuits stay locked until DHW heating is completed.

Shifting

If the capacity of the heat source is not sufficient, the mixing and pump heating circuits will be restricted until DHW is heated up.

None

DHW heating and space heating take place at the same time. In the case of tightly sized boilers and mixing heating circuits,

the DHW setpoint may not be reached if space heating demands considerable amounts of heat.

MC shifting, PC absolute

The pump heating circuits stay locked until the DHW storage tank is heated up. If the capacity of the heat source is not sufficient, the mixing heating circuits will be restricted also.

Legionella function

Off

The function is deactivated.

Periodically

The legionella function is repeated according to the interval set (operating line 1641). The legionella setpoint is attained via a solar plant, independent of the period of time set, the period of time will be newly started. This means that the heat source is switched on only if the solar plant could not deliver the required “Legionella function setpoint” within the adjusted period of time.

Fixed weekday

The legionella function can be activated on a fixed weekday (operating line 1642). When using this setting, heating up to the legionella setpoint takes place on the selected weekday, independent of previous storage tank temperatures. This setting is intended primarily for plant with no solar integration.

Legionella funct periodically

Setting “Legionella funct periodically” is used to select after how many weekdays the function shall be activated again. (This setting is active only if parameter “Legionella function” is set to “Periodically”).

Legionella funct weekday

Parameter “Legionella funct weekday” is used to select on which weekday the function shall be performed. The function is carried out on the selected weekday, independent of the availability of alternative energy.

Legionella function time

The legionella function is started at the time set. The DHW setpoint is raised to the adjusted legionella setpoint and DHW charging is started.

If no time is parameterized, the legionella function is started on the respective day together with the first normal release of DHW heating. If no release of DHW heating is scheduled for that day (continuously reduced), the legionella function will be performed at 24:00.

Line no. Operating line Factory setting
1640 Legionella functionOffPeriodicallyFixed weekday	See manual boiler
1641 Legionella funct periodically
1642 Legionella funct weekdayMo - Su
1644 Legionella function time
1645 Legionella funct setpoint
1646 Legionella funct duration
1647 Legionella funct. circ. pumpOffOn

If DHW heating is switched off (DHW operating mode button = off or holidays), the legionella function will be made up for as soon as DHW heating is switched on again (DHW operating mode button = on or end of holiday period).

Legionella funct setpoint

The higher the temperature level of the storage tank, the shorter the required dwelling time at that level.

Legionella funct duration

The demanded “Legionella function setpoint” must be continuously maintained during the dwelling time set. If the storage tank temperature (in the case of 2 sensors, the temperature acquired by the “colder” sensor) exceeds the “Legionella function setpoint” minus 1 K, the “Legionella function setpoint” is considered fulfilled and the “Dwelling time” timer elapses. If the storage tank temperature drops below the demanded “Legionella function setpoint” by more than the switching differential plus 2 K before the dwelling time has elapsed, the dwelling time must be fulfilled again. If no dwelling time is set, the “Legionella” function is performed the moment the “Legionella function setpoint” is reached.

If the "Legionella" function cannot be performed within a 48-hour period, an error message will be delivered.

Legionella funct circ pump

When the function is activated, the circulating pump is switched on while the "Legionella" function is performed as soon as the storage tank temperature (in the case of 2 sensors the temperature acquired by the "colder" sensor) lies above the "Legionella function setpoint" minus 1 K. The pump runs during the dwelling time set. If the storage tank temperature falls below the demanded "Legionella function setpoint" by more than the DHW switching differential plus 2 K, the circulating pump will prematurely be deactivated.

During the time the legionella function is performed, the DHW circulating pump can be activated.

Menu: DHW

Circulating pump

A multifunctional relay is used for controlling the circulating pump. It must be appropriately parameterized.

Circulating pump release

The circulating pump is switched on during the release time (see below), provided DHW heating is switched on and at least one of the connected heating circuits is not in holiday mode. If the DHW operating mode is "Off", or if all connected heating circuits are in holiday mode, the circulating pump remains deactivated, independent of the parameterized release. Release of the circulating pump can take place in different ways:

Time program 3/HCP

The circulating pump is released according to time program 3 / HCP.

DHW release

With this parameterization, the circulating pump is released when DHW heating is released also.

The circulating pump is released according to time program 4 / DHW.

Time program 5

The circulating pump is released according to time program 5.

Line no.	Operating line Factory setting
1660	Circulating pump releaseTime program 3/HCPDHW releaseTime program 4/DHWTime program 5	See manual boiler
1661	Circulating pump cyclingOffOn
1663	Circulating setpoint

Circulating pump cycling

When the function is activated, the circulating pump is switched on for 10 minutes within the release time and then switched off again for 20 minutes.

Circulating setpoint

If a sensor is installed in the DHW distribution pipe, the controller will monitor its actual value during the time the legionella function is performed. The adjusted setpoint must be maintained at the sensor during the adjusted Dwelling time. The circulating setpoint is limited at the top at the nominal setpoint.

Remote control

Optg mode changeover

In the case of external changeover via inputs Hx, the operating mode where changeover is to take place can be selected.

None

Function deactivated. No changeover of operating mode.

Off

Operating mode is changed to Off.

Line no. Operating line Factory setting
1680 Optg mode changeoverNoneOffOn	See manual boiler

On

Operating mode is changed to On.

Menu: Consumer circuit

Consumer circuit

Flow temp setp cons request

Adjustment of the flow temperature setpoint that becomes active when there is a heat request from the consumer circuit.

With this setting, the connected consumer circuit pump can be excluded from or included in the impact resulting from DWH charging priority. This means that in the caseof ventilation applications, for instance, constant delivery of heat can be ensured without any impact from DHW charging priority.

Excess heat draw

If excess heat draw is activated, it can be delivered to the consumer circuits. This can be selected separately for each consumer circuit.

Off

Function is deactivated.

On

Function is activated.

Line no. Operating line Factory setting
HC1	HC2	HC3
1859	1909	1959	Flow temp setp cons request	See manual boiler
1874	1924	1974	DHW charging priorityNoYes
1875	1925	1975	Excess heat drawNoYes
1878	1928	1978	With bufferNoYes
1880	1930	1980	With prim contr/systemNoYes

With prim contr/system pump

The setting made here defines whether the consumer circuit shall receive heat via the primary controller or the system pump (depending on the type of plant).

Off

Function is deactivated.

On

Function is activated.

With buffer

If a buffer storage tank is used, it is to be entered whether the consumer circuit is allowed to draw heat from the pump storage tank. When employing alternative heat sources, the buffer storage tank temperature is used as a control criterion for the release of additional heat sources.

Off

Function is deactivated.

On

Function is activated.

When swimming pool control is activated, the setpoints for solar heating or for conventional heating can be adjusted.

Setpoint solar heating

When making use of solar energy, the swimming pool is heated to this setpoint.

The collector overtemperature protection function can put the collector pump back into operation until the maximum swimming pool temperature is reached.

Setpoint source heating

When using other heat sources, the swimming pool is heated to this set-point.

Line no.	Operating line	Factory setting
2055 Setpoint solar heating		See manual boiler
2056	Setpoint source heating

Charging priority solar

Priority 1

Swimming pool charging has the first priority.

Priority 2

Swimming pool charging has the second priority (after the buffer storage tank and the DHW storage tank).

Priority 3

Swimming pool charging is effected without priority (after the buffer storage tank, the

DHW storage tank, the heating circuits, and the consumer circuits).

Line no.	Operating line	Factory setting
2065 Charging priority solarPriority 1Priority 2Priority 3		See manual boiler
2080 With solar integrationNoYes

Swimming pool temp max

When the swimming pool temperature reaches the temperature limit set here, the collector pump will be deactivated. It is released again only when the swimming pool temperature drops 1 °C below the maximum limit.

Line no. Operating line Factory setting
2070 Swimming pool temp		See manual boiler
2080 With solar integrationNoYes

With solar integration

The setting made here decides whether the swimming pool can be heated by solar energy.

Primary controller / system pump

Limitations of the flow temperature setpoint

Flow temp setpoint min/ max

These limitations can be used to define a range for the flow temperature setpoint during heating mode.

Line no.	Operating line	Factory setting
2110 Flow temp setpoint min		See manual boiler
2111 Flow temp setpoint max

TVmax Flow temperature setpoint, maximum
TVmin Flow temperature setpoint, minimum
TVw Current flow temperature setpoint

Syst pump on heat gen lock

This parameter can be used to select whether or not the system pump shall be locked when heat generation lock is active.

Line no.	Operating line	Factory setting
2121 Syst pump on heat gen lockOffOn		See manual boiler

Off

System pump not locked.

On

System pump locked when heat generation lock is active.

Primary controller / system pump

Mixing valve control

Mixing valve boost

To ensure accurate control, the flow temperature delivered by the boiler must be higher than the demanded flow temperature setpoint after the mixing valve. The controller therefore generates the boiler temperature setpoint based on the mixing valve boost set here and the current flow temperature setpoint.

Actuator type

The selection of the type of actuator determines the control behavior for the type of mixing valve actuator used.

2-position

The controller drives the actuator via one relay output only. When a control signal is delivered, the valve opens. When no control signal is present, the valve closes automatically (thermal action or mechanically).

The control employs a 2-position controller with an adjustable switching differential. If the flow temperature lies more than half the switching differential below the setpoint, relay Mixing valve OPEN is energized to remain energized until the flow temperature reaches a level half the switching differential above the setpoint.

3-position

The controller drives the actuator via 2 relay outputs. One of the outputs is used for opening the valve, one for closing the valve. If none of the relays is energized, the actuator maintains its present position.

Line no.	Operating line	Factory setting
2130 Mixing valve boost		See manual boiler
2132 Actuator type2-position3-position
2133 Switching differential 2-pos
2134 Actuator running time
2135 Mixing valve Xp
2136 Mixing valve Tn

The control employs a PID controller whose proportional band (Xp) and integral action time (Tn) can be parameterized. The actuator running time can also be adjusted. The controller's neutral zone is +/- 1 K. The control parameters can be matched to the requirements of difficult controlled systems.

Switching differential 2-pos

For a 2-position actuator, the 2-position switching differential must also be dapted. This is not required when using a 3-position actuator.

Actuator running time

Setting the running time of the actuator used with the mixing valve.

Mixing valve Xp

By setting the right proportional band, the control action of the mixing valve's actuator is matched to the behavior of the plant (controlled system). Xp influences the controller's P-control action.

Mixing valve Tn

By setting the right integral action time, the control action of the mixing valve's actuator is matched to the behavior of the plant (controlled system). Tn influences the controller's I-control action.

Primary contr/system pump

If the plant is equipped with a buffer storage tan, it must be stated here whether – hydraulically speaking – the primary controller or the system pump is located before or after the buffer storage tank.

Line no.	Operating line Factory setting
2150	Primary contr/system pumpBefore the bufferAfter the buffer	See manual boiler

Menu: Boiler

Setpoints

The controlled boiler temperature set-point can be limited with Setpoint min und -max. These limitations can be considered to be a protective function for the boiler. In normal operation, minimum limitation of the boiler temperature is the lower limit value for the controlled boiler temperature setpoint, depending on the boiler's operating mode. In normal operation, maximum limitation of the boiler temperature is the upper limit value for the controlled boiler temperature setpoint and setpoint for the electronic limit thermostat (TR).

Line no. Operating line

2210 Setpoint min

2212 Setpoint max

2214 Setpoint manual control

Setpoint manual control

In manual control, the common flow temperature setpoint can be set to a fixed value.

Factory setting

See manual boiler

PID boiler management unit

P-band Xp defines the controller's gain. A small Xp leads to higher control of the burner fan without changing the control difference T = (Tsoll minus Tist) .

The integral action time Tn determines the controller's rate of response when correcting proportional offsets. A shorter Tn leads to faster correcting actions.

Line no. Operating line

2233 P-band Xp HCs

2234 Int action time Tn HCs

2235 Der action time Tv HCs

2236 P-band Xp DHW

The derivative action time Tv determines the extent of after-effect of a spontaneous change of control difference. A short Tv only has a short-time impact on the manipulated variable.

Factory setting

See manual boiler

Boiler / burner control

Burner running time min

Here, a period of time after burner startup is defined during which the off time differential is increased by 50%. This means that with similar heating up processes, the 2-position controller switches off later. But this parameter setting does not guarantee that the burner remains in operation for the parameterized period of time.

Line no. Operating line

2241 Burner running time min

2243 Burner off time min

2245 SD burner off time

SD burner off time

If SD burner off time is exceeded, the minimum off time will be aborted.

Factory setting

See manual boiler

Burner off time min

The minimum boiler off time takes effect exclusively between successive heat requests. It locks the boiler for an adjustable period of time and is started after regular shutdown or if the temperature limiter cuts out in response to heat requests. New startups initiated by the 2-position controller due to heat requests are made only when this period of time has elapsed.

Menu: Boiler

Overtemperature protection

Pump overrun time

Pump overrun time after heating mode and external requests.

Line no. Operating line	Factory setting
2250 Pump overrun time	See manual boiler
2253 Pump overr time after DHW

Pump overr time after DHW

Pump overrun time after DHW heating.

Return setpoint min

The required minimum return temperature setpoint can be parameterized. If the boiler return temperature falls below the return temperature setpoint, maintained boiler return temperature becomes active.

In connection with the return temperature, the following functions can be provided:

- Locking signal acting on the consumers

Line no. Operating line	Factory setting
2270 Return setpoint min	See manual boiler

• Control of the bypass pump
• Control of a modulating valve

Boiler pump

Boiler pump on heat gen lock

This parameter is used to determine whether heat generation lock shall also act on the boiler pump.

Line no.	Operating line	Factory setting
2301	Boiler pump on heat gen lock	See manual boiler
2305	Impact heat generation lockHeating mode onlyHeating and DHW mode

Off

Boiler pump locked when heat generation lock is active.

All space heating and DHW heating requests are locked.

On

Boiler pump not locked when heat generation lock is active.

Impact heat generation lock

This parameter is used to select whether heat generation lock shall only be active in the case of heat requests from the heating circuit, or in the case of DHW heating requests also.

Heating mode only

Only space heating requests are locked. DHW heating requests continue to be met.

Menu: Boiler

Temp differential nominal

Temp differential max

The "Maximum boiler differential" function is used to monitor the speed control of the boiler pump. When the boiler flow/return differential reaches the preset value, the boiler pump speed is not increased further. If the actual differential exceeds the preset value, the speed is reduced.

The function can be deactivated with setting ---.

Line no.	Operating line	Factory setting
2316	Temp differential max	See manual boiler
2317	Temp differential nominal

Temp differential nominal

In connection with a modulating heating circuit pump, the boiler maintains a nominal temperature differential as long as the pump is not operated at the maximum permissible speed.

Speed control

Pump modulation

A number of functions are available for the modulating boiler pump.

None

Function is switched-off.

Demand

Do not use this function.

Boiler setpoint

Do not use this function.

Temp differential nominal

The LMS... continues to control the boiler's output such that the boiler temperature setpoint is maintained. Pump speed control controls the boiler pump's speed in a way that the parameterized nominal temperature differential of boiler return and boiler flow is maintained. If the effective differential is greater than the nominal differential, the pump's speed is increased, otherwise it is decreased.

The pump's speed is limited by the parameterized minimum and maximum speed.

Burner output

This function can be used with both single-boiler plants and cascades, with or without pressureless header.

If the burner operates at low output, the boiler pump shall also be operated at low speed. In the case of high outputs, the boiler pump shall run at high speed.

Line no.	Operating line	Factory setting
2320	Pump modulationNoneDemandBoiler setpointTemp differential nominalBurner output	See manual boiler
2321	Starting speed
2322	Pump speed min
2323	Pump speed max
2324	Speed Xp
2325	Speed Tn
2326	Speed Tv
2329	Pump setpoint reduction
2334	Output at pump speed min
2335	Output at pump speed max

The speed of the boiler pump is calculated based on the current boiler output. Up to a selectable boiler output (operating line 2334) the boiler pump operates at minimum speed. And above a selectable boiler output (operating line 2335), the boiler pump operates at maximum speed. Between minimum output (Ynmin) and maximum output (Ynmax), the pump speed is continuously increased.

Starting speed

At start up the pump will start with the programmed starting speed. After modulation release the pump will be controlled according to the chosen function.

Pump speed min

Minimum speed for the pump.

Pump speed max

Maximum speed for the pump.

Speed Xp

Speed Tn

Speed Tv

PID settings for function Boiler setpoint at parameter 2320.

Pump setpoint reduction

This parameter is used to set the setpoint reduction for the boiler pump's speed control. This setpoint reduction is only active in connection with Pump modulation and Boiler setpoint (operating line 2320).

Output at pump speed min Output at pump speed max

If option Burner output is selected on operating line number 2320, the boiler pump is operated at minimum speed until the burner output set on operating line number 2334 is reached, and at maximum speed from the burner output set on operating line number 2335. If the burner's output lies between these 2 values, the boiler pump's speed is calculated through linear conversion.

Menu: Boiler

Output data

Output nominal

Output basic stage

These setting are required when several boilers with different outputs are operated in a cascade.

Line no. Operating line	Factory setting
2330 Output nominal	See manual boiler
2331 Output basic stage

Fan

Fan speed heating max

This parameter can be used to limit the maximum output in heating mode.

Fan speed full charging max

This parameter can be used to limit the maximum output during full charging.

Fan speed DHW max

This parameter is used to limit the maximum fan speed for DHW heating. The parameter is OSV-compatible. With OSV, the maximum fan speed applies to DHW heating.

Fan shutdown heating mode

This function is used to switch off the fan's power supply. Power supply to the fan is released as soon as the fan's PWM control is active or whenever there is a request for DHW. Fan shutdown is delayed and takes place after PWM control is switched off, or after there is no more demand for DHW. The delay time can be set via parameter Fan shutdown delay. During the period of time a request for DHW is active, the fan's power supply remains released also when PWM control is inactive. Parameter Fan shutdown with heat request (fan release configuration) can be used to select whether the fan's power supply shall be released also when there is a request for DHW, independent of PWM control.

Off

Function is deactivated.

On

Function is activated.

Line no.	Operating line	Factory setting
2441	Fan speed heating max	See manual boiler
2442	Fan speed full charging max
2444	Fan speed DHW max
2445	Fan shutdown heating modeOffOn
2446	Fan shutdown delay
2450	Controller delayOffHeating mode onlyDHW mode onlyHeating and DHW mode
2452	Controller delay speed
2453	Controller delay duration
2470	Delay heat req special op

Fan shutdown delay

Setting of the delay time for the fan shutdown function.

Controller delay

Here, it can be selected in which operating mode the controller delay shall become active.

Controller delay speed

Speed delivered during the controller delay time.

Controller delay duration

Duration of controller delay. This delay time is started the moment a flame is definitively detected after ignition.

Delay heat req special op

Parameter Delay heat req special op (2470) can be used to delay burner startup, thus allowing the actuating element to release the heating circuit before the heat source reaches its operating position.

Menu: Boiler

Deaeration function

Using the automatic deaerator installed in the boiler, the function is intended to remove any air from the space heating / DHW system. For that purpose, the pumps in the system are activated and deactivated according to a certain sequence. The Deaeration function is performed in up to 4 preselectable phases. The phases are distinguished in terms of heating circuit deaeration, DHW circuit deaeration, cycled pump control, and static pump control for the entire phase. During these phases, a 3-port valve is driven to a certain position. When the preselected phases of the Deaeration function have elapsed, the function is automatically ended.

When this function is started, the burner control changes to standby, which means that it is off during the whole time the Deaeration function is performed.

Auto deaeration procedure

The deaeration ends automatically.

Off

Function deactivated.

On

Function activated.

Line no. Operating line	Factory setting
2630 Auto deaeration procedureOffOn	See manual boiler
2655 ON time deaeration
2656 OFF time deaeration
2657 Number of repetitions
2662 Venting time heating circuit
2663 Venting time DHW

ON time deaeration

On time of the boiler / heating circuit pumps in phases 2 and 4 of the deaeration procedure.

OFF time deaeration

Off time of the boiler / heating circuit pumps in phases 2 and 4 of the deaeration procedure.

Number of repetitions

Number of repetitions of pump switching cycles in phases 2 and 4 of the deaeration procedure.

Venting time heating circuit

Duration of deaeration with continuous control of the boiler / heating circuit pumps in phase 1 of the deaeration procedure.

Venting time DHW

Duration of deaeration with continuous control of the boiler / DHW pumps in phase 3 of the deaeration procedure.

Menu: Cascade

General:

The cascade function and menu are only active when: the LBS Device address (Line no. 6600) is set to 1 and another LMS controller is connected to the LBS bus.

Lead strategy

The sources are switched on and off according to the selected lead strategy while giving consideration to the preset output band. To deactivate the impact of the output band, the limit values must be set to 0% and 100%, and the lead strategy to be selected is Late on, late off.

Late on, early off

Additional boilers are switched on as late as possible (output band max) and switched off again as early as possible (output band max). This means that the smallest possible number of boilers are in operation, or additional boilers operate with short on times.

Line no.	Operating line	Factory setting
3510	Lead strategyLate on, early offLate on, late offEarly on, late off	See manual boiler
3511	Output band min
3512	Output band max

Late on, late off

Additional boilers are switched on as late as possible (output band max) and switched off again as late as possible (output band min). This leads to the smallest possible number of switch-on/off actions for the boilers.

Early on, late off

Additional boilers are switched on as early as possible (output band min) and switched off again as late as possible (output band min). This means that the largest possible number of boilers are in operation, or additional boilers operate with the longest possible on times.

Release integral source seq

When, with the heat source currently in operation, the demand for heat cannot be met, the difference being the release integral set here, another boiler is switched on. When the value is increased, additional heat sources are switched on at a slower rate. When the value is decreased, additional heat sources are switched on at a faster rate.

Reset integral source seq

When, with the heat source currently in operation, the demand for heat is exceeded by the reset integral set here, the heat source with the highest priority is shut down. When the value is increased, heat sources operate for longer periods of time (in the case of surplus heat). When the value is decreased, heat sources are switched off at a faster rate.

Line no. Operating line	Factory setting
3530 Release integral source seq	See manual boiler
3531 Reset integral source seq
3532 Restart lock
3533 Switch on delay
3534 Forced time basic stage

Restart lock

The restart lock prevents a deactivated heat source from being switched on again. It is released again only after the set time has elapsed. This prevents too frequent switching actions of the heat sources and ensures stable plant operating states.

Switch on delay

Correct adjustment of the switch-on delay ensures that plant operating conditions will be stable. This prevents too frequent switching actions of the boilers (cycling).

In the case of a DHW request, the delay time is fixed at 1 minute.

Forced time basic stage

When switched on, every boiler operates with its basic stage for the period of time set here. The next stage is released only when this period of time has elapsed.

Menu: Cascade

Boiler sequence

Auto source seq ch'over

With automatic source sequence changeover, the boiler loads in a cascade can be influenced by defining the order of lead and lag boiler.

Fixed order

Setting - - - defines a fixed order. In that case, the lead boiler can be selected on operating line 3544; the other boilers are then switched on and off in the same order as the LPB device addresses.

Order according to the number of operating hours

On completion of the number of hours set, the boiler sequence in the cascade changes. It is always the boiler with the next higher device address which assumes the role of the lead boiler.

Auto source seq excluding

Setting automatic source sequence exclusion is only used in connection with the activated heat source sequence (operating line 3540). Using automatic source sequence exclusion, the first and / or the last boiler can be exempted from automatic changeover.

None.

The order of switching on the boilers changes when the number of hours set is reached (operating line 3540).

First

The first boiler in terms of addressing will always be the lead boiler. With the other boilers, the order of switching on changes when the set number of hours is reached (operating line 3540).

Last

The last boiler in terms of addressing will always be the last. The other boilers change when the set number of hours is reached (operating line 3540).

First and last

The first boiler in terms of addressing will always be the lead boiler. The last boiler in terms of addressing will always be the last. The boilers in between change when the set number of hours is reached (operating line 3540).

Line no.	Operating line	Factory setting
3540	Auto source seq ch'over	See manual boiler
3541	Auto source sez excluding NoneFirstLastFirst and last
3544	Leading sourceSource 1... source 16
3560	Return setpoint min

Leading source

The leading source is only selected in connection with the fixed order of the heat source sequence (operating line 3540).

The boiler selected as the lead boiler is always the first to be switched on, or the last to be switched off. The other boilers are switched on and off in the order of their device addresses.

Return setpoint min

If the return temperature drops below the adjusted return setpoint, maintained boiler return temperature becomes active. Maintained boiler return temperature allows consumers to be influenced or a return temperature controller to be used.

Menu: Solar

General:

The solar function and menu are only active when in the Configuration menu a multifunctional output 5891, 6030-6038 is programmed as solar function and the dedicated multifunctional sensor inputs 5930, 5931, 6040-6045 are activated.

Solar

Charging controller (dT)

For charging the storage tank via the heat exchanger, the temperature differential between collector and storage tank/swimming pool must be sufficient, and the collector must have reached the minimum charging temperature for the storage tank/swimming pool.

Line no.	Operating line	Factory setting
3810	Temp diff on	See manual boiler
3811	Temp diff off
3812	Charg temp min DHW
3813	Temp diff on buffer
3814	Temp diff off buffer
3815	Charging temp min buffer
3816	Temp diff on swi pool
3817	Temp diff off swi pool
3818	Charging temp min swi pool

Priority

The priority circuit for the swimming pool (operating line 2065) can impact storage tank priority of solar charging and possibly charge the swimming pool before the storage tanks.

Charging prio storage tank

If a plant uses several heat exchangers, it is possible to set a priority for the integrated storage tanks, which defines the charging sequence.

None

Every storage tank is charged alternately by 5 °C at a time, until every setpoint of level A, B or C (see below) is reached. The setpoints of the next higher level are approached only when all setpoints of the previous level have been reached.

DHW storage tank

During solar charging, preference is given to the DHW storage tank. At every level A, B or C (see below), it is charged with priority. Only then will the other consumers of the same level be charged. As soon as all setpoints of a level are attained, those of the next level are approached, whereby priority is again given to the DHW storage tank.

Charging time relative prio

If the preferred storage tank cannot be charged in accordance with charging control, priority is transferred to the next storage tank or the swimming pool for the period of time set (e.g. too great temperature differential between collector and storage tank). As soon as the preferred storage tank (according to setting Charging priority storage tank) is again ready to be charged, the transfer of priority will immediately be stopped.

If this parameter is disabled (---) charging proceeds in accordance with the Charging prio storage tank setting.

Waiting time relative prio

During the period of time set, the transfer of priority will be delayed. This prevents relative priority from intervening too frequently.

Line no.	Operating line	Factory setting
3822	Charging prio storage tankNoneDHW storage tankBuffer storage tank	See manual boiler

Level DHW storage tank Buffer storage tank
A 1610 Nominal setpoint	Buffer setpoint (slave pointer)
B 5050 Charging Temperature Maximum	4750 Charging Temperature Maximum
C 5051 Storage tank Temperature Maximum	4751 Storage tank Temperature Maximum

Swimming pool (1)
2055	SetpointSolar heating
2055	SetpointSolar heating
2070	Swimming poolTemperatureMaximum

Buffer storage tank

During solar charging, preference is given to the buffer storage tank. At every level A, B or C (see below), it is charged with priority. Only then will the other consumers of the same level be charged. As soon as all setpoints of a level are attained, those of the next level are approached, whereby priority is again given to the buffer storage tank.

(1) When priority for the swimming pool is activated (operating line 2065), the swimming pool is charged before the storage tanks.

Line no.	Operating line	Factory setting
3825	Charging time relative prio	See manual boiler
3826	Waiting time relative prio
3827	Waiting time parallel op
3828	Delay secondary pump

Waiting time parallel op

If solar output is sufficient and solar charging pumps are used, parallel operation is possible. In that case, the storage tank of the priority model can be the next to be simultaneously charged, in addition to the storage tank to be charged next. Parallel operation can be delayed by introducing a waiting time. This way, in the case of parallel operation, switching on of the storage tanks can be effected in steps. The setting (---) disables parallel operation.

Delay secondary pump

To carry away any cold water resting in the primary circuit, the secondary pump of the external heat exchanger can be delayed.

Start function

Collector start function

If the collector temperature cannot be correctly acquired because the pump is not running (especially in the case of vacuum tubes), the pump can be activated from time to time.

Min run time collector pump

When the collector pump is activated, it remains on for the minimum running time, independent of temperature differentials The minimum running time of the pump can be parameterized and is active with all functions that activate the collector pump.

Collector frost protection

When there is risk of frost at the collector, the collector pump will be activated to prevent the heat-carrying medium from freezing.

- If the collector temperature falls below the frost protection temperature, the collector pump will be activated: TKol < TKolFrost

Line no.	Operating line	Factory setting
3830	Collector start function	See manual boiler
3831	Min run time collector pump
3834	Collector start funct grad

Collector start funct grad

The collector pump is activated as soon as the temperature acquired by the collector sensor rises.

Line no.	Operating line	Factory setting
3840	Collector frost protection	See manual boiler

- When the collector temperature returns to a level of 1^ above the frost protection temperature, the collector pump will be deactivated again: TKol > TKolFrost + 1

Collector overtemp prot

If there is a risk of overtemperature at the collector, storage tank charging is continued to reduce the amount of surplus heat. When the storage tank safety temperature is reached, charging will be stopped.

Line no.	Operating line	Factory setting
3850	Collector overtemp prot	See manual boiler

Menu: Solar

Evaporation heat carrier

If there is a risk of the heat carrying medium evaporating due to high collector temperatures, the collector pump will be deactivated to prevent it from reaching excessive temperatures. This is a protective pump function.

Line no. Operating line	Factory setting
3860 Evaporation heat carrier	See manual boiler

Speed controlled pump

When the collector pump is connected to multifunctional output QX3. The modulation range of the pump can be limited.

Line no.	Operating line	Factory setting
3870	Pump speed min	See manual boiler
3871	Pump speed max

Pump speed min / max

The solar pump motor speed is limited by a minimum and maximum permitted speed.

Yield measurement

The 24-hour and total solar energy yield (Line no. 8526, 8527) is calculated, base on these data.

Antifreeze

Since the mixing ratio of the collector medium has an impact on heat transmission, the type of antifreeze used and its concentration must be entered in order to be able to determine the energy yield.

Line no.	Operating line	Factory setting
3880	AntifreezeNoneEthylen glycolPrpylene glycolEthyl and propyl glycol	See manual boiler
3881	Antifreeze concentration
3884	Pump capacity
3887	Pulse unit yield

Pump capacity

The flow rate in l/h of the pump used must be determined and serves for calculating the volume delivered.

Pulse unit yield

Defines the flow per pulse for the chosen Hx-Input. The chosen Hx-Input has to be configured to Pulse measurement accordingly.

General:

The solid fuel boiler function and menu are only active when in the Configuration menu a multifunctional output 5891, 6030-6038 is programmed as solid fuel boiler function and the dedicated multifunctional sensor inputs 5930, 5931, 6040-6045 are activated.

Locks other heat sources

When the solid fuel boiler is put into operation, other heat sources, such as oil/gas boilers, will be locked. Locking takes place as soon as the boiler temperature rises to a degree that crossing of the comparative temperature (Line no. 4133) can be expected.

Line no.	Operating line	Factory setting
4102	Locks other heat sources	See manual boiler

This anticipating function enables the locked heat sources to terminate any overrun of pumps before the solid fuel boiler pump is activated.

Also, in the case of a common stack, it can be made certain that only one boiler is in operation at a time.

Setpoints, Temperature diffs

The boiler pump will be put into operation only when the boiler temperature has reached a minimum temperature level, in addition to the required temperature differential. Above this minimum temperature the boiler should not produce condensate anymore.

Comparative temp

Depending on the hydraulic configuration, the solid fuel boiler temp will be compared to for example the buffer sensor B4.

Delta T-Controller

For the boiler pump to be put into operation, a sufficiently great temperature differential between boiler temperature and comparison temperature is required.

Line no.	Operating line	Factory setting
4110	Setpoint min	See manual boiler
4130	Temp diff on exchanger
4131	Temp diff off exchanger
4133	Comparative tempDHW sensor B3DHW sensor B31Buffer sensor B4Buffer sensor B41Flow temp setpointSetpoint min

TKx Boiler temp Bx Comparative temp On/Off Boiler pump
SDon Temp diff ON SDoff Temp diff OFF

Excess heat discharge

If the boiler temperature reaches the set maximum value, the solid fuel boiler pump is activated until the boiler temp sinks 5K below the set value. The excess heat is discharged into the Buffer or HCs for which Excess heat draw Line no. 861, 1161, 5085 are activated.

Line no. Operating line		Factory setting
4141 Excess heat discharge		See manual boiler
4170 Frost prot plant boiler pumpOnOff

Frost prot plant boiler pump

The boiler pump is activated, depending on the current outside temperature, although there is no heat request. Frost protection for the solid fuel boiler works only if frost protection for the plant is activated (operating line 6120).

General:

The Buffer function and menu are only active when in the Configuration menu the multifunctional sensor inputs 5930, 5931, 6040-6045 are programmed as B4 and B41. Additionally in the LPB menu the device address has to be set to 1.

Auto generation lock

The automatic heat generation lock brings about a temporary hydraulic separation between heat source and buffer storage tank. The heat source is put into operation only when the buffer storage tank is no longer able to cover the current demand for heat.

Line no. Operating line	Factory setting
4720 Auto generation lockNoneWith B4	See manual boiler
4721 Auto heat gen lock SD
4722 Temp diff buffer/HC

Min st tank temp heat mode

If the tank temperature B4 drops below the set min. tank temp, the HCs are switched off.

Line no.	Operating line	Factory setting
4724	Min st tank temp heat mode	See manual boiler

Overtemperature protection

The buffer will be charged by the solar energy to the set max charging temp.

Line no.	Operating line	Factory setting
4750	Charging temp max	See manual boiler

The overtemperature protection cn reactivate the collector pump until the maximum buffer temperature (fix 90°C) has been reached.

Recooling DHW/HCs

2 functions are available for recooling the buffer storage tank down to the recooling temperature.

- The recooling takes place from the max buffer temperature down to the return temperature.

Line no.	Operating line	Factory setting
4755	Recooling temp	See manual boiler
4756	Recooling DHW/HCs
4757	Recooling collectorOffSummerAlways

- The excess heat of the buffer can be drawn by a heat demand of heating or DHW tank. This can be selected for the individual HCs (Line no's 861, 1161, 5085).

- Recooling Collector. In case of a cold collector, the excess heat can be dispersed to the surroundings via the collector field.

Plant hydraulics

Select whether the buffer should be charged by the solar energy. Only the DHW tank or the buffer can be charged by the solar energy.

Line no. Operating line	Factory setting
4783 With solar integration	See manual boiler

Menu: Buffer storage tank

If there is a certain temperature differential between the common return sensor (B73) and the selectable comparative temperature, the return is diverted through the lower section of the buffer storage tank. The function can be used for a return temperature increase or return temperature decrease (to be selected on operating line 4796).

This is defined on operating line 4796. In addition, the setting of the respective relay output is to be made as Buffer return valve Y15 in configuration Relay output QX1, 2, 3, 4 (operating lines 5890, 5891, 5892 and 5894) and the common return sensor (B73) at BX.

Temp diff on/off return div

The selected temperature differential defines the switch on / off point of return diversion.

Compar temp return div

Selection of the buffer storage tank temperature sensor with which the return temperature is compared in order to switch the return diversion based on the selected temperature differentials.

Line no. Operating line	Factory setting
4790 Temp diff on return div	See manual boiler
4791 Temp diff off return div

Line no.	Operating line	Factory setting
4795	Compar temp return divWith B4With B41With B42	See manual boiler

Optg action return diversion

Selection of the buffer storage tank temperature sensor with which the return temperature is compared in order to switch the return diversion based on the selected temperature differentials.

Line no.	Operating line	Factory setting
4796	Optg action return diversionTemp decreaseTemp increase	See manual boiler

Temp decrease

If the consumers' return temperature is higher than the temperature at the selected sensor (operating line 4795), the return can be used to preheat the lower storage tank section. As a result, the return temperature drops further which, in the case of a condensing boiler, leads to higher efficiency.

Temp increase

If the consumers' return temperature is lower than the temperature at the selected sensor (operating line 4795), the return temperature can be raised by diverting the return through the lower storage tank section. As a result, the return temperature increases.

Partial charging setpoint

By hydraulically decoupling the lower buffer storage tank section, the chargeable storage volume is reduced. As a result, the upper storage tank section is charged in a shorter period of time. The lower storage tank section is only charged when charging of the upper section is completed.

Line no.	Operating line	Factory setting
4800	Partial charging setpoint	See manual boiler

Menu: Buffer storage tank

Full charging

Function full buffer storage tank charging enables released heat sources to switch off only when the buffer storage tank is fully charged, in spite of automatic heat generation lock.

Line no.	Operating line	Factory setting
4810 Full charging		See manual boiler
	Off
	Heating mode
	Always

Off

The full charging function is deactivated.

Heating mode

Full charging becomes active when due to the buffer storage tank temperature automatic heat generation locks the heat sources while the heat request is valid. When the buffer storage tank's sensor parameterized for the function reaches the required temperature, the function is ended.

Always

Full charging becomes active when due to the buffer storage tank temperature automatic heat generation locks the heat sources while the heat request is valid, or when the heat request becomes invalid. When the buffer storage tank's sensor parameterized for the function reaches the required temperature, the function is ended.

Full charging temp min

The buffer storage tank is charged to at least the set level.

Line no.	Operating line	Factory setting
4811	Full charging temp min	See manual boiler

Full charging sensor

Line no.	Operating line	Factory setting
4813	Full charging sensorWith B4With B42/B41	See manual boiler

With B4

The full charging function uses buffer sensor B4.

With B42/B41

The full charging function uses buffer sensor B42 or, if not available, buffer sensor B41.

Setting Once/day or Several times/day is active only when the DHW release is set in accordance with the heating circuits' time programs.

Flow setpoint boost

The DHW request to the boiler is made up of the current DHW setpoint plus the adjustable charging boost.

Transfer boost

Heat transfer makes it possible to transport energy from the buffer storage tank to the DHW storage tank. In that case, the actual buffer storage tank temperature must be higher than the actual temperature of the DHW storage tank. The temperature differential can be set here.

Switching diff

If the DHW temperature is lower than the current setpoint minus the switching differential set here, DHW charging is started. DHW charging is ended when the temperature reaches the current setpoint.

Charging time limitation

During DHW charging, space heating may receive no heat or not enough heat, depending on the selected charging priority (operating line 1630) and the hydraulic circuit. For this reason, it is often practical to have a temporal limitation of DHW charging.

Discharging protection

This function ensures that the DHW charging pump (Q3) is activated only when the heat source temperature is high enough.

Charging temp max

Solar energy charges the DHW storage tank up to the adjusted maximum DHW charging level.

The protective collector

overtemperature function can reactivate the collector pump until the maximum storage tank temperature is reached.

Recooling temp

If activated, the recooling function remains in operation until the adjusted recooling temperature in the DHW storage tank is reached.

Line no.	Operating line	Factory setting
5010	ChargingOnce/daySeveral times/day	See manual boiler
5020	Flow setpoint boost
5021	Transfer boost
5022	Type of chargingRechargingFull chargingFull charging legioFull Charg 1st time day

Type of charging

The storage tank can be charged using up to 2 sensors. It is also possible to combine partial charging with 1 sensor and the Legionella function with 2 sensors (setting 3).

Line no.	Operating line	Factory setting
5024	Switching diff	See manual boiler
5030	Charging time limitation
5040	Discharging protectionOffAlwaysAutomatic

Application with sensor

The charging pump is activated only when the heat source temperature lies at a level half the charging boost above the DHW temperature. When, during the charging process, the boiler temperature drops to a level below the DHW temperature plus 1/8 the charging boost, the charging pump is deactivated again. If 2 DHW sensors are parameterized for DHW charging, the lower temperature is considered for the Discharging protection function (usually B31).

Application with thermostat

The charging pump is activated only when the boiler temperature lies above the nominal DHW setpoint. When, during the charging process, the boiler temperature drops to a level below the nominal DHW temperature setpoint minus the DHW switching differential, the charging pump is deactivated again.

Line no.	Operating line	Factory setting
5050	Charging temp max	See manual boiler
5055	Recooling temp
5056	Recooling heat gen/HCs
5057	Recooling collectorOffSummerAlways

Recooling heat gen/HCs

Heating energy can be drawn off either by space heating or the DHW storage tank. This can be selected separately for each heating circuit (operating page heating circuit 1...).

Recooling collector

If the collector is cold, the energy can be emitted to the environment via the collector's surfaces.

In place of the boiler, DHW can also be heated with an electric immersion heater. If DHW heating is provided by an electric immersion heater, no request will be sent to the boiler. The changeover between boiler and electric immersion heater takes place based on the following criteria.

Substitute

The electric immersion heater is only used if the boiler delivers a fault status message or has been shut down via boiler lock. This means that in normal situations the DHW is always heated by the boiler.

Line no.	Operating line	Factory setting
5060 El	imm heater optg modeSubstituteSummerAlways	See manual boiler
5061 El	immersion heater release24h/dayDHW releaseTime program 4/DHW
5062 El	immersion heater controlExternal thermostatDHW sensor

Summer

The electric immersion heater is used as soon as all connected heating circuits have switched to summer operation. The DHW is again heated by the boiler as soon as at least 1 of the heating circuits has switched back to heating operation. But the electric immersion heater is also used if the boiler delivers a fault status message or has been shut down via boiler lock.

Always

DHW is heated with the electric immersion heater throughout the year. This means that when using this application, the boiler is never required for DHW heating.

EI immersion heater release

24h/day

The electric immersion heater is continuously released impedently of the time programs.

DHW Release

The electric immersion heater is released within the DHW release period.

Time program 4/DHW

The electric immersion heater is released within switching program 4.

El immersion heater control

External thermostat

The storage tank is charged via an external thermostat without setpoint compensation of the controller.

DHW sensor

The storage tank is charged via an electric immersion heater, with setpoint compensation from the controller.

Important: To ensure that setpoint compensation operates as required, the external control thermostat must be set to the minimum storage temperature.

This function is only active when DHW heating is switched on.

Off

The DHW push can only be triggered manually.

On

If the DHW temperature drops by more than 2 switching differentials (operating line 5024) below the Reduced setpoint (operating line 1612), one-time charging to the nominal DHW setpoint is effected again (operating line 1610).

Legend

SDBW Switching differential DHW TBWw Nominal DHW temp setpoint TBWR Reduced DHW temp setpoint

Line no.	Operating line	Factory setting
5070	Automatic pushOffOn	See manual boiler

Plant hydraulics

Excess heat draw

Excess heat draw can be triggered by one of the following functions:

• Inputs H1, H2, H3 or EX2
• Storage tank recooling
• Solid fuel boiler with excess heat draw

Line no. Operating line	Factory setting
5085 Excess heat draw	See manual boiler

When excess heat draw is activated, the surplus energy can be discharged for DHW storage.

With Buffer

If there is a buffer storage tank, specify whether the DHW storage tank can draw heat from it or directly from the boiler.

When using alternative heat sources, the buffer storage tank temperature is used as a control criterion for the release of additional heat sources.

Line no. Operating line	Factory setting
5090 With Buffer	See manual boiler
5092 With prim contr/system pump
5093 With solar integration

With prim contr/system pump

It is to be set whether the DHW storage tank receives its heat via the primary controller or with the help of the system pump (depending on the type of plant). The primary controller / system pump will be activated in the LOGON B.

With solar integration

It is to be set whether the DHW storage tank receives its heat from the solar collectors.

Speed control charging pump

The charging pump motor speed is limited by a minimum and maximum permitted speed. On start-up the pump is operated at maximum speed for appr. 10 seconds.

Line no. Operating line	Factory setting
5101 Pump speed min	See manual boiler
5102 Pump speed max

Pump speed min

Minimum speed for the pump.

Pump speed max

Maximum speed for the pump.

Line no.	Operating line	Factory setting
5130	Transfer strategyOffAlwaysDHW Release	See manual boiler

Off

There is no heat transfer via charging pump Q3. For the transfer of heat via charging pump Q11, setting DHW release applies in this case.

Always

The transfer can always happen.

DHW Release

The transfer can only happen during DHW release.

Comparison temp transfer

For the transfer the corresponding DHW sensor can be chosen as comparison temperature.

Line no.	Operating line	Factory setting
5131	Comparison temp transferDHW sensor B3DHW sensor B31	See manual boiler

In the configuration menu general parameters can be programmed.

Presetting

Via presetting one of 30 so called preselect configurations can be chosen. When doing so, the controller will automatically preset various line nr's according to the chosen configuration.

Afterwards individual parameters can be changed to adapt to the demands.

The plant diagram is determined by the preselect and the attached sensors.

Line no.	Operating line	Factory setting
5700	Preselect	See manual boiler

Line no. 5700 Preselct can show the following:

Unchanged:

All parameters that were preset by the Preselect function have the preselect settings.

Changed:

Parameters that were preset by the Preselect function have been adapted manually.

Heating circuit 1, 2

The HCs can be switched on or off.

Line no.	Operating line	Factory setting
5710	Heating circuit 1	See manual boiler
5715	Heating circuit 2

DHW Sensor

DHW sensor B3

The controller calculates the switching points including the switching differential from the DHW setpoint and the acquired DHW storage tank temperature.

Thermostat

The DHW temperature is controlled based on the switching state of a thermostat connected to DHW sensor B3.

Line no.	Operating line	Factory setting
5730	DHW SensorDHW sensor B3Thermostat	See manual boiler

• When using a DHW thermostat, Reduced mode is not possible. This means that
• when Reduced mode is active, DHW heating with the thermostat is locked.

• The adjustment of the nominal DHW temperature setpoint must be equal to or higher than the setpoint adjustment on the thermostat (thermostat calibrated at switch-off point).

• The flow temperature setpoint for DHW must be set to a minimum of 10 °C (has an impact on the charging time).

• In that case, the DHW is not protected against frost.

The DHW is charged via a pump connected to Q3/Y3.

Line no.	Operating line	Factory setting
5731 DHW controlling element Q3No charging elementCharging pumpDiverting valve		See manual boiler

Diverting valve

The DHW is charged via a diverting valve connected to Q3/Y3. In this setting pump Q2 will be set to boilerpump, if the boiler pump has not already been programmed at a Relay output QX...

Menu: Configuration

The basic position of the diverting valve is the position the valve maintains when there is no heat request.

Last request

On completion of the last heat request, the diverting valve maintains position it held last.

Line no.	Operating line	Factory setting
5734	Basic pos DHW div valveLast requestHeating circuitDHW	See manual boiler

Heating circuit

On completion of the last heat request, the diverting valve is driven to the heating circuit position.

DHW

On completion of the last heat request, the diverting valve is driven to the DHW position.

The separate circuit can only be employed if a boiler cascade is used.

For the separate circuit, DHW controlling element Q3 must be set to Diverting valve.

Line no.	Operating line	Factory setting
5736 DHW separate circuitOffOn		See manual boiler

Off

The separate circuit is switched off. Every boiler in use can charge the DHW storage tank.

On

The separate circuit is switched on. DHW charging takes place exclusively via the boiler defined for that purpose.

Here, the diverting valve position is set that applies when the output is active.

Line no.	Operating line	Factory setting
5737	Optg action DHW div valvePosition on DHWPosition on heating circuit	See manual boiler

Position On DHW

When the output is active, the diverting valve is in the DHW position.

Position on heating circuit

When the output is active, the diverting valve is in the heating circuit position.

Here, the DHW diverting valve can be driven to the midposition. This serves for filling or draining both heating circuits. This action must be reset manually.

Line no.	Operating line	Factory setting
5738	Midposition DHW div valveOffOn	See manual boiler

Off

The diverting valve is driven to position currently demanded, independent of heat requests and the basic position.

On

The diverting valve is driven to the mid-position.

Ctrl boiler pump/DHW valve

This parameter is for use with special hydraulic schemes to define that boiler pump Q1 and diverting valve Q3 are only in charge of DHW and heating circuit 1, but not of heating circuit 2 and of external consumer circuits.

Line no.	Operating line	Factory setting
5774 Steuer' Kesselpump/TWW UVAll requestsRequest HC1/DHW only		See manual boiler

All requests

Hydraulically speaking, the diverting valve is integrated with all heat requests and changes over between DHW mode and the other heat requests. The boiler pump runs, no matter what the heat request.

Request HC1/DHW only

In place of a collector pump and diverting valves for integrating the storage tanks, the solar plant can also be operated with charging pumps.

Line no.	Operating line	Factory setting
5840	Solar controlling elementCharging pumpDiverting valve	See manual boiler

Charging pump

When using a charging pump, all heat exchangers can be used at the same time. Either parallel or alternative operation is possible.

Diverting valve

When using a diverting valve, it is always only 1 heat exchanger that can be used at a time. Only alternative operation is possible.

External solar exchanger

In the case of solar plants with 2 storage tanks, it must be selected whether there is an external heat exchanger used for both the DHW and the buffer storage tank, or for 1 of them only.

Line no.	Operating line	Factory setting
5841	External solar exchangerJointlyDHW storage tankBuffer storage tank	See manual boiler

Combi storage tank

Functions specific to combi storage tanks are activated with this setting. For example the electric immersion heater in the buffer storage tank can be used for both space heating and DHW heating.

Line no.	Operating line	Factory setting
5870	Combi storage tankNoYes	See manual boiler

No

No combi storage tank present.

Yes

Combi storage tank present.

Menu: Configuration

Relais output QX

The settings of the relay outputs add additional functions to the plant diagram.

QX2 is a relay output of LMS14. QX21, 22, 23 are relay output on AVS75 modules.

Circulating pump Q4

The connected pump serves as a DHW circulating pump. Operation of the pump can be scheduled as required on operating page DHW, operating line Release circulating pump (Line no. 1660).

Using the connected electric immersion heater, the DHW can be heated up according to operating page DHW storage tank, operating line electric immersion heater. Line no. 5060 should be programmed appropriately.

Collector pump Q5

When using a solar collector, a circulating pump for the collector circuit is required.

Cons circuit pump VK1/2/3

External request pump 1 can be used for an additional consumer. Together with an external request for heat at input external request 1, it is possible to operate an air heater or similar.

Boiler pump Q1

The connected pump is used for circulating the boiler water between boiler and low velocity header.

Bypass pump Q12

The connected pump serves as a boiler bypass pump for maintaining the boiler return temperature.

Alarm output K10

The alarm relay signals faults, should they occur. Switching on takes place with a delay of two minutes. When the fault is corrected, that is, when the fault status is no longer present, the relay will be deenergized with no delay. If the fault cannot immediately be corrected, it is still possible to reset the alarm relay. This is made on operating page Faults (Line no. 6710).

Line no.	Operating line	Factory setting
5890	Relais output QX
5891	None
5892	Circulating pump Q4El imm heater DHW K6Collector pump Q5
6030	Cons circuit pump VK1 Q15
6031	Boiler pump Q1
6032	Bypass pump Q12
6033	Alarm output K10
6034	2nd pump speed HC1 Q21
6035	2nd pump speed HC2 Q22
6036	2nd pump speed HC3 Q23
6037	Heat circuit pump HC3 Q20
6038	Cons circuit pump VK2 Q18System pump Q14Heat gen shutoff valve Y4Solid fuel boiler pump Q10Time program 5 K13Buffer return valve Y15Solar pump ext exch K9Solar ctrl elem buffer K8Solar ctrl elem swi pool K18Cons circuit pump VK3 Q19Cascade pump Q25St tank transfer pump Q11DHW mixing pump Q35DHW interm circ pump Q33Heat request K27Refrigeration request K28Heat circuit pump HC1 Q2Heat circuit pump HC2 Q6DHW ctrl elem Q3Instant heater ctrl elem Q34Water filling K342nd boiler pump speed Q27Status output K35Status information K36Flue gas damper K37Fan shutdown K38	See manual boiler

2nd pump speed HC1/2/3

This function allows the control of a 2-stage heating circuit pump, so that when heating load is reduced the pump load can be reduced as well.

The relay output QX is used to switch on the 2nd stage.

1st stageOutput Q2/Q6/Q20	2nd StageOutput Q21/Q22/Q23	Pump mode
Off Off Off
On Off Min load
On On Full load

Heat circuit pump Q20

(for direct circuit)

The direct circuit will be activated.

Time program:

For the direct circuit only Time program 3/HC3 can be used. Also check menu "Time program 3/HC3".

System pump Q14

The connected pump serves as a system pump, which can be used to supply heat to additional consumers. The system pump is put into operation as soon as there is a heat request from one of the consumers. If there is no heat request, the pump is deactivated on completion of the overrun time.

Heat gen shutoff valve Y4

If the buffer storage tank holds a sufficient amount of heat, the consumers can draw their heat from it, and the heat sources need not be put into operation. Automatic heat generation lock locks the heat sources and hydraulically disconnects them from the rest of the plant with the help of heat source shut-off valve Y4. This means that the heat consumers draw their energy from the buffer storage tank and wrong circulation through the heat sources will be eliminated.

Solid fuel boiler pump Q10

For the connection of a solid fuel boiler, a circulating pump for the boiler circuit is required.

Time program 5 K13

The relay is controlled according to the settings made in time program 5.

Buffer return valve Y15

This valve must be configured for return temperature increase / decrease or partial charging of the buffer storage tank.

Solar pump ext. exch K9

For the external heat exchanger, solar pump external exchanger K9 must be set at the multifunctional relay output (QX). If both a DHW and a buffer storage tank are available, operating line 5841 External solar heat exchanger must also be set.

Solar ctrl elem buffer K8

If several heat exchangers are used, the buffer storage tank must be set at the respective relay output and, in addition, the type of solar controlling element must be defined on operating line 5840).

Solar ctrl elem swi pool K18

If several heat exchangers are used, the swimming pool must be set at the respective relay output and, in addition, the type of solar controlling element must be defined on operating line 5840).

Swimming pool pum Q16

External request pump 3 can be used for an additional consumer. Together with an external request for heat at input external request 3, it is possible to operate an air heater or similar.

Cascade pump Q25

Common boiler pump for all boilers in a cascade.

St tank transfer pump Q11

If the temperature level of the buffer storage tank is high enough, the DHW storage tank can be charged by the buffer. This transfer can be made by means of storage tank transfer pump Q11.

DHW mixing pump Q35

Separate pump for storage tank circulation during the time the legionella function is active.

Charging pump with DHW storage tank using an external heat exchanger.

Heat request K27

Contact closes to inform an external heat source that a heat demand is pending.

Refrigeration request K28

Function not yet implemented.

Heat circuit pump HC1 Q2

Pump HC1 will be activated.

Hat circuit pump HC2 Q6

Pump HC2 will be activated.

DHW ctrl elem Q3

Control element for DHW storage tank.

Instant WH ctrl elem Q34

Ctrl element for DHW instantaneous.

2nd boiler pump speed Q27

Speed 2 of the boiler pump will be activated.

Status output K35

Function status output.

Status information K36

Function status information.

Flue gas damper K37

Function flue gas damper.

Fan shutdown K38

Function "Fan shutdown" to turn off power supply when the fan is not needed.

Menu: Configuration

Sensor input BX1, 2, 21, 22

Depending on the selection made, the sensor input settings assign appropriate functions.

BX1 and 2 are sensor inputs of the LMS14. BX21 and 22 are sensor inputs on the AVS75 modules.

None

Sensor input with no function.

DHW sensor B31

DHW storage tank sensor at the bottom.

Return sensor B7

Not a safety-related boiler return temperature sensor.

Buffer storage tank sensor at the top.

Buffer sensor B41

Buffer storage tank sensor at the bottom.

Buffer sensor B42

Third buffer storage tank sensor (in the middle).

Solar flow sensor B63

Solar flow temperature sensor for yield measurement.

Solar return sensor B64

Solar return temperature sensor for yield measurement

Line no.	Operating line	Factory setting
5930	Sensor input BX1, BX2
5931	None
5932	DHW sensor B31
	Collector sensor B6
	Return sensor B7
6040	DHW circulation sensor B39
6041	Buffer sensor B4
6042	Buffer sensor B41
6043	Flue gas temp sensor B8
6044	Common flow sensor B10	See manual boiler
6045	Solid fuel boiler sensor B22
	DHW charging sensor B36
	Buffer sensor B42
	Common return sensor B73
	Cascade return sensor B70
	Swimming pool sensor B13
	Solar flow sensor B63
	Solar return sensor B64
	Primary exch sensor B26

Function input H1/H2/H4/H5

Function input H1/H2/H4/H5

Optg mode changeover

HC

The operating modes of the heating circuits are switched to Protection mode via the Hx input (e.g. using a remote telephone switch).

DHW

DHW heating is locked only when using setting HCs+DHW or DHW.

Heat generation lock

The heat source is be locked via the Hx terminals. All temperature requests made by the heating circuits and by DHW will be ignored. Frost protection for the boiler will be maintained.

Error/Alarm message

Input H1 generates a controller-internal error message. If the "Alarm output" (relay outputs QX1 - 4, operating lines 5891 - 5894) is appropriately configured, the error message will be forwarded or displayed by an additional contact (e.g. an external lamp or horn).

Consumer request VK1/VK2/VK3

The adjusted flow temperature setpoint will be activated via terminal Hx (e.g. an air heater function for a warm air curtain) closes its contact. The setpoint can be programmed on Line no. 1859, 1909 and 1959.

Excess heat discharge

Active dissipation of excess heat enables an external heat source to force consumers (heating circuit, DHW storage tank, Hx pump) to draw excess heat by delivering a forced signal. Parameter Excess heat draw can be used to determine for every consumer whether or not it should take account of the forced signal and, hence, whether or not that consumer should participate in the dissipation of heat.

- Local effect

When using LPB device address 0 or >1, excess heat discharge only acts on the local consumers connected to the controller.

Line no.	Operating line	Factory setting
5950	Function Input H1/H2/H4/H5
5970	None
5977	Optg mode change HCs+DHW
	Optg mode changeover DHW
6046	Optg mode changeover HCs
6054	Optg mode changeover HC1
6062	Optg mode changeover HC2
	Optg mode changeover HC3
	Heat generation lock
	Error/alarm message
	Consumer request VK1
	Consumer request VK2
	Consumer request VK3
	Excess heat discharge
	Release swi pool solar
	Operating level DHW	See manual boiler
	Operating level HC1
	Operating level HC2
	Operating level HC3
	Room thermostat HC1
	Room thermostat HC2
	Room thermostat HC3
	DHW flow switch
	DHW thermostat
	Start prevention
	Consumer request VK1 10V
	Consumer request VK2 10V
	Consumer request VK3 10V
	Pressure measurement 10V
	Preselected output 10V

• Central effect (LPB)

When using LPB device address = 1, excess heat discharge also acts on the consumers connected to the other controllers in the same segment.

The distribution of excess heat from segment 0 across other segments of the system is not possible.

Release swi pool solar

The function can be used to enable solar heating of the swimming pool externally (e.g. with a manual switch) or to define solar charging priority over storage.

Configuration:

Set the function of input Hx to Release swimming pool solar. Refer to operating line 2065 "Charging priority solar" for a description of the function.

The operating level can be set via the contact in place of using the internal time program (external time program).

Room thermostat HC1/HC2/HC3

The input can be used to generate a room thermostat request for the selected heating circuit.

DHW flow switch

Input from the flow switch of the instantaneous water heater.

DHW thermostat

Input from the DHW storage tank thermostat.

Start prevention

This input can be used to prevent burner starts.

Consumer request VK1/VK2/VK3 10V

Application node "External load x" receives heat requests in the form of voltage signals (DC 0...10 V). The linear characteristic is defined with the help of 2 fixed points (voltage value 1 / function value 1 and voltage value 2 / function value 2).

Pressure measurement DC 10 V

The voltage signal present at input Hx is converted to a pressure value (linear conversion). The linear characteristic is defined by 2 fixed points (voltage value 1 / function value 1 and voltage value 2 / function value 2).

Preselected output 10V

The heat source receives a voltage signal (DC 0...10V) as an output request. The linear characteristic is defined with the help of 2 fixed points (voltage value 1 / function value 1 and voltage value 2 / function value 2).

Menu: Configuration

Contact type H1/H2/H4/H5

NC

The contact is normally closed and must be opened to activate the selected function.

NO

The contact is normally open and must be closed to activate the selected function.

The linear characteristic is defined via 2 fixed points. The setting uses 2 parameter pairs for Function value and Voltage value (F1/U1 and F2/U2). At input H4 (frequency input), a frequency value is assigned to the function value, and not a voltage value.

Line no.	Operating line	Factory setting
5951604760556063	Contact type H1/H2NCNO
5952 Mir. Flow setpoint H1
5953604960576065	Voltage value 1 H1/H2	See manual boiler
5954605060586066	Function value 1 H1/H2
5955605160596067	Voltage value 2 H1/H2
5956605260606068	Function value 2 H1/H2
5971 Contact type H4NCNO
5973 Frequency value 1 H4
5974 Function value 1 H4
5975 Frequency value 2 H4
5976 Function value 2 H4
5978 Contact type H5NCNO

Extension module AVS75

Multifunctional

Functions that can be assigned to the multifunctional inputs / outputs appear on operating lines 6030...6038.

Heating circuit 1/2

For this application, the respective settings of operating page Heating circuit 1/2 can be adapted.

Return temp controller

The mixing valve control is part of the return temperature increase function. Settings in menu "Boiler".

Function input EX21 Module 1/2/3

None

Input Hx has no function.

Limit thermostat HC

If the extension module for the heating circuit is used, an external limit thermostat (e.g. for underfloor heating) can be connected to input EX21 (AC 230V).

Line no.	Operating line	Factory setting
6020	Function Extension module 1/2/3
6021	None
6022	Multifunctional HC1
	HC2
	Return temp controller Solar DHW Primary contr/system pump	See manual boiler

Solar DHW

The relevant settings of operating page "Solar" can be matched to meet the requirements of this application.

Primary contr/system pump

For this application, the respective settings of operating page Primary controller / system pump can be adapted.

Line no.	Operating line	Factory setting
6024	Function input EX21 Module 1/2/3
6026	None	See manual boiler
6028	Limit thermostat HC

Menu: Configuration

Sensor type collector

Selection of type of sensor used. The controller will use the respective temperature characteristic.

Line no.	Operating line	Factory setting
6097	Fühlertyp KollektorNTCPT1000	See manual boiler

Readjustm collector sensor

The measured value of the collector sensor can be corrected +/- 20 K.

Line no. Operating line	Factory setting
6098 Readjustm collector sensor	See manual boiler
6100 Readjustm outside sensor

The measured value of the outside sensor can be corrected +/- 3 K.

Time constant building

When the outside temperature varies, the room temperature changes at different rates, depending on the building's thermal storage capacity.

Line no. Operating line	Factory setting
6110 Time constant building	See manual boiler

The above setting is used to adjust the response of the flow temperature setpoint when the outside temperature varies.

Central setp compensation

Central setpoint compensation matches the setpoint of the heat source to the required central flow temperature. The setting limits the maximum readjustment, even in cases where greater adaptations would be called for.

Line no. Operating line	Factory setting
6117 Central setp compensation	See manual boiler

This function can only be implemented when using the common flow sensor (B10).

Setpoint Reduction delay

This function prevents stage boilers or modulating boilers switching off too quickly. This makes the boilers not cool down, to prevent a new heat demand and restart of the boilers.

Line no.	Operating line Factory setting
6118 Setpoint reduction delay		See manual boiler

The reduction delay only works when there is a setpoint change, not when the heat demand disappears.

Menu: Configuration

Frost protection plant

Depending on the actual outside temperature the pumps will be switched on, even if there is no heat demand.

Prerequisite for proper functioning is a fully operational plant. Frost protection for the plant necessitates an outside sensor. If that sensor is missing, the function will nevertheless be ensured by simulating an outside temperature of 0 °C and by delivering an error message.

Off

Function is deactivated.

On

Function is activated.

Line no.	Operating line Factory setting
6120 Frost protection plantOffOn		See manual boiler

Outside temp Pump Diagram
...-4°C	Continuously ON	ON
-5...1.5°C	ON for 10 minutes at 6 hours intervals	Cycle
1.5°C... Continuously OFF OFF

Save sensors

At midnight, the basic unit saves the statuses at the sensor terminals, provided the controller has previously been in operation for at least 2 hours. If, after storage, a sensor fails, the basic unit generates an error message. This setting is used to ensure immediate saving of the sensors. This becomes a requirement when, for instance, a sensor is removed because it is no longer needed.

Line no.	Operating line Factory setting
6200 Save sensorsNoYes		See manual boiler

Reset to default parameters

All resettable parameters can be reset to their default values. Exempted from this are the following operating pages: Time of day and date, Operating unit, RF and all time programs, Setpoint "Manual control".

Line no.	Operating line Factory setting
6205 Reset to default parametersNoYes		See manual boiler

Plant diagram

To identify the current plant diagram, the basic unit generates a check number. The check no. is made up of the lined up partial diagram numbers. The meaning of the numbers for the line no.'s can be found in the tables on the next page.

Line no.	Operating line
6212 Check no. heat source 1
6213 Check no. heat source 2
6215 Check no. storage tank
6217 Check no. heating circuits

Software-Version

The software version indicated here represents the current version of the basic unit.

Line no.	Operating line
6220 Software version

Check no. heat source 1 (Line no. 6212)

Gaskessel modulierend

11 Modulating boiler12 Modulating boiler, boiler pump13 Modulating boiler, bypass pump14 Modulating boiler, boiler pump, bypass pump

Solar

0 No Solar1 Solar with collector sensor and - pump

Check no. heat source 2 (Line no. 6213)

Solid fuel boiler

0 No solid fuel boiler1 Solid fuel boiler, boiler pump2 Solid fuel boiler, boiler pump, integration DHW storage tank

Check no. storage tank (Line no. 6215)

Buffer storage tank

DHW storage tank

0 No storage tank1 Buffer storage tank2 Buffer storage tank, solar connection4 Buffer storage tank, heat source valve5 Buffer storage tank, solar connection, heat source valve

0 No DHW storage tank1 Electric immersion heater2 Solar connection4 Charging pump5 Charging pump, solar connection13 Diverting valve14 Diverting valve, solar connection16 Primary controller, without heat exchanger17 Primary controller, 1 heat exchanger19 Intermediate circuit, without heat exchanger20 Intermediate circuit, 1 heat exchanger22 Charging pump / intermediate circuit, without heat exchanger23 Charging pump / intermediate circuit, 1 heat exchanger25 Diverting valve / intermediate circuit, without heat exchanger26 Diverting valve / intermediate circuit, 1 heat exchanger

Check no. heating circuits (Line no. 6217)

HC 3	HC 2	HC 1
0 No HC1 Circulation via boiler pump2 HC pump3 HC pump, mixing valve	0 No HC1 Circulation via boiler pump2 HC pump3 HC pump, mixing valve	0 No HC1 Circulation via boiler pump2 HC pump3 HC pump, mxing valve

Device address and Segment address

The controller LPB address is divided into 2 parts each consisting of two 2-digit numerals.

Example:

	14	.	16
	↑		↑
Segment address			Device address

Bus power supply function

The bus power supply enables the bus system to be powered directly by the individual controllers (no central bus power supply). The type of bus power supply can be selected.

Off

No bus power supply via the controller.

Automatically

The bus power supply (LPB) via the controller is automatically switched on and off depending on the requirements of the LPB.

Bus power supply state

The display shows whether the controller currently supplies power to the bus.

Off

The bus power supply via controller is currently inactive.

On

The bus power supply via controller is currently active. At the moment, the controller supplies some of the power required by the bus.

Display system messages

This setting makes it possible to suppress on the connected operating section system messages transmitted via LPB.

No

Error messages are not displayed on the operator unit of the controller.

Yes

Error messages are displayed on the operator unit of the controller.

Line no.	Operating line Factory setting
6600	Device address	See manual boiler
6601	Segment address
6604	Bus power supply functionOffAutomatically
6605	Bus power supply StateOffOn
6610	Display system messagesNoYes
6620	Action changeover functionsSegmentSystem
6621	Summer changeoverLocallyCentrally
6623	Optg mode changeoverLocallyCentrally
6624	Manual source lockLocallySegment

Action changeover functions

The range of action of central changeover can be defined. This applies to the following types of limitation:

- Summer changeover (when selecting Centrally on line 6623)

- Summer changeover (with Centrally setting on operating line 6621)

Segment

Changeover takes place with all controllers in the same segment.

System

Changeover takes place with all controllers in the entire system (in all segments). The controller must be located in segment 0!

Summer changeover

The scope of summer changeover is as follows:

Locally

Local action; the local heating circuit is switched based on operating lines 730, 1030 and 1330.

Centrally

Central action; depending on the setting made on operating line Action changeover functions, either the heating circuits in the segment or those of the entire system are switched based on operating line 730.

Optg mode changeover

In LPB-capable devices, the basic unit with the LPB device address = 1 can adopt the function of a central operating mode changeover. The changeovers on the central basic unit (via H1 / H3) or the "HC operating mode changeover" parameter) then also take effect on the heating circuits and the DHW of the other basic units on the LPB.

The scope of the operating mode changeover via input H is as follows:

Locally

Local action; the local heating circuit is switched on and off.

Centrally

Central action; depending on the setting made on operating line Action changeover functions, either the heating circuits in the segment or those of the entire system are switched based on operating line 730.

Manual source lock

The range of action of source lock is as follows:

Locally

Local action; the local source is locked.

Segment

Central action; all sources of the cascade are locked.

Menu: LPB system

DHW Assignment

Assignment of DHW heating is required only if it is controlled by a heating circuit program (operating lines 1620 and 5061).

Local HCs

DHW is only heated for the local heating circuit.

All HCs in segment

DHW is heated for all heating circuits in the segment.

All HCs in system

DHW is heated for all heating circuits in the system.

With all settings, controllers in holiday mode are also considered for DHW heating.

Note OT limit ext source

Additional generators connected via the LPB bus can be locked or released per its own parameter based on the outside air temperature (e.g. air/water heat pump). This status is distributed via LPB. The master therefore knows in a cascade whether an additional generator (slave) is available per its own employment limits (outside air temperature or not and can switch another generator accordingly.

No

The Ecobit from the external generator is not observed.

Yes

The Ecobit from the external generator is observed and the cascade is controlled per the provided generators.

Caution!

If an LMU control (slave) is connected as an additional generator, the parameter must be set to "No"!

Line no.	Operating line Factory settings
6625	DHW AssignmentLocal HCsAll HCs i segmentAll HCs in system	See manual boiler
6632	Note OT limit ext sourceNoYes
6640	Clock modeAutonomouslySlave without remote settingSlave with remote settingMaster
6650	Outside temp source

Clock mode

This setting defines the impact of the system time on the controller's time setting.

Autonomously

The time of day on the controller can be readjusted. The controller's time of day is not matched to the system time.

Slave without remote setting

The time of day on the controller cannot be readjusted. The controller's time of day is constantly and automatically matched to the system time.

Slave with remote setting

The time of day on the controller can be readjusted; at the same time, the system time is readjusted since the change is adopted from the master. The controller's time of day is still automatically and constantly matched to the system time.

Master

The time of day on the controller can be readjusted. The time of day on the controller is used for the system. The system time will be readjusted.

Outside temp source

Only 1 outside temperature sensor is required in the LPB plant. This sensor is connected to a freely selectable controller and delivers via LPB the signal to the controllers without sensor. The first numeral to appear on the display is the segment no. followed by the device no.

Menu: Fault, Service/special operation

When a fault is pending, an error message can be displayed on the info level by pressing the Info button. The display describes the cause of the fault.

Message

A fault currently pending in the system is displayed here with the Albatros code indicating where the fault occurred.

SW Diagnostic code

An internal software error currently pending in the system is displayed here with diagnostic code indicating where the error occurred.

Line no. Operating line Factory setting
6700 Message	See manual boiler
6705 SW Diagnostic code
6706 Burner ctrl phase lockout pos
6710 Reset Alarm relay

Burner ctrl phase lockout pos

A fault currently pending in the system is displayed here with the lockout phase indicating where the fault occurred.

Reset alarm relay

When a fault is pending, an alarm can be triggered via relay QX... The QX... relay must be appropriately configured. This setting can be used to reset the alarm relay.

Temperature alarms

This function can be used for maintaining the required flow temperature. If the flow temperature deviates constantly from the required level for more than the period of time set, an error message will be delivered.

Line no. Operating line Factory setting
6740 Flow temp 1 Alarm	See manual boiler
6741 Flow temp 2 Alarm
6742 Flow temp 3 Alarm
6743 Boiler temp Alarm
6745 DHW charging Alarm

History

The basic unit stores the last 20 errors in nonvolatile memory. Every new entry cancels the entry made last. For every error entry, error code, time, internal SW diagnostic code and fault phase of the burner control are stored.

Line no. Operating line Factory setting
6800...6996 History ... Indication only

Maintenance functions

Burner hours interval / Burner start interval/ Maintenance interval

As soon as the set number of burner hours or burner starts or maintenance interval has elapsed, a maintenance message is displayed. For this message, the number of operating hours and starts of the first burner stage (input E1) are counted.

Line no. Operating line Factory setting
7040	Burner hours interval	See manual boiler
7041	Burn hrs since maintenance	Indication only
7042	Burner start interval	See manual boiler
7043	Burn starts since maint	Indication only
7044	Maintenance interval	See manual boiler
7045	Time since maintenance	Indication only
7050	Fan speed ionization current	See manual boiler
7051	Message ionization currentNoYes

Burn hrs since maintenance Burn starts since maint

Time since maintenance

The current value is added up and displayed. On this operating line, the value can be reset to 0.

Fan speed ionization current

This is the fan speed limit from which the burner ionization current maintenance message should be set if – due to too low ionization current – ionization current supervision and thus increased speed are activated.

Message ionization current

Flag to indicate and to reset the burner ionization current maintenance message.

The maintenance message can be reset only if the cause of the message has been rectified.

Menu: Service/special operation

Chimney sweep function

The burner is started up. To ensure that burner operation will be as continuous as possible, only maximum limitation of the boiler temperature is active to be used as the switch off point.

To reach the minimum boiler temperature of 64 °C as quickly as possible, all consumers are locked for that period of time by an absolute locking signal.

When the boiler temperature exceeds 64 °C, a forced signal forces all consumers to draw heat so ensure that the boiler keeps running.

The boiler temperature maximum limitation remains active when chimney sweeper function is active.

Burner output

Preset burner output for performing the Chimney sweep function.

Manual control

When manual control is activated, the relays are no longer energized and deenergized according to the control status but are set to a predefined manual control status in accordance with their functions (see table).

Setpoint adjustment manual control

After Manual control has been activated, one should return to the main display. There the Service/special operation symbol is displayed.

The setpoint for manual control can be changed in the info menu, which can be reached by pushing the info-button.

When manual control is activated, the relays are no longer energized and deenergized according to the control status but are set to a predefined manual control status in accordance with their functions (see table below). The relay outputs are set to a state where heat is provided, independent of their hydraulic function. The solar plant remains switched off since there is a possibility of storage tank recooling via the collector. A relay energized in manual operation can be deenergized by an electronic control thermostat (TR) or limit thermostat (TW).

Line no.	Operating line Factory setting
7130	Chimney sweep function	See manual boiler
7131	Burner outputPartial loadFull loadMax heating load
7140	Manual control

Designation Relay Status
Gas boiler	Boiler pump	Q1	On
	2. stage boiler pump Q27	On
Solid fuel boiler	Solid fuel boiler pump Q10	On
Solar	Collector pump	Q5	Off
	External exchange pump	K9	Off
	Control element buffer storage tank	K8 Off
	Control element swim- ming pool	K18	Off
DHW	Charging pump	Q3	On
	Diverting valve	Q3	Off
	Intermediate circuit pump	Q33	On
	DHW mixing pump	Q35	Off
	Circulation pump	Q4	On
	Electric immersion heater	K6	On
Instantaneous water heater	Charging pump	Q34	Off
	Diverting valve	Q34	Off
Buffer storage tank	Heat generation shutoff valve	Y4 On
	Return valve	Y15	Off
HC 1..3	HC pump	Q2Q6Q20	On
	Mixer open/close	Y1/Y2Y5/Y6Y11/Y12	Off
	HC pump 2. stage	Q21Q22Q23	On
Primary controller	System pump	Q14	On
	Prim ctrl mixer open/ close	Y19/Y20	Off
External consumer circuits 1..3	Consumer circuit pump	Q15Q18Q19	On
Extra function	Alarm output	K10	Off
	Time program 5	K13	Off
	Heat demand	K27	On
	Status output	K35	On
	Status information	K36	On
	Flue gas damper	K37	On
	Fan shutdown	K38	On
	Storage tank diverter pump	Q11 Off
Cascade	Cascade pump	Q25	On

Menu: Service/special operation

Controller stop function

In controller stop function the request to the burner is set to setpoint controller stop.

Controller stop setpoint

Setpoint for the burner request in controller stop function.

Deaeration function

This parameter serves for triggering the function manually, e.g. via hotkey or menu Maintenance/special operation. On completion of deaeration, the parameter will be reset to Off. Deaeration can also be aborted any time by setting the parameter to Off.

Line no.	Operating line Factory setting
7143	Controller stop functionOffOn	See manual boiler
7145	Controller stop setpoint
7146	Deaeration functionOffOn
7147	Type of ventingNoneHC continuousHC cycledDHW continuousDHW cycled
7170	Telephone customer service

Type of venting

This parameter can be used to preselect the phases of the Deaeration function (for more detailed information, refer to chapter Deaeration function).

Once the function is started, the value serves for information purposes and shows the phase currently handled.

Telephone customer service

Setting of phone number that appears on the info display.

Parameterstick

The parameter stick can only be used in connection with a full-text operating unit. If this type of operating unit is not available, a service room unit can be connected for temporary use.

When the parameter stick is plugged into the LMS14, it is identified and the information for auto-backup or auto-restore is evaluated.

Stored on the parameter stick are several parameter sets, which can be selected via the operating unit.

PStick storage pos

PStick description parameter set

Using data point PStick storage pos, the data set (data set number on the stick) to be written or read can be selected. When a data set was selected, a second data point PStick Bez Daten-satz shows the Data set name.

PStick Command

Depending on the selection made, the following actions are performed:

No operation (0)

This is the basic state. This command is displayed as long as no operation on the stick is active.

Line no. Operating line Factory setting
7250 PStick storage pos		See manual boiler
7251 PStick description parameter set
7252 PStick commandNo operationReading from stickWriting on stick
7253 PStick progress
7254	No stickNo operationWriting on stickReading from stickEMC test activeWriting errorReading errorIncompatible data setWrong stick typeStick format errorCheck data setData set disabledReading disabled

Reading from stick (1)

Starts reading data from the stick. This operation is only possible with read or read / write sticks.

Writing on stick (2)

Starts writing data from the LMS14... to the stick. This operation is only possible with write or read / write sticks.

PStick progress

The progress made appears as a percentage which, when stick operation is active (reading or writing) shows the percentage already completed. If no operation is active, or if an error occurs, the display reads 0%. In the 2nd box of the double display, the state is shown. Among other things, it serves as information about errors should problems occur.

Menu: Input/output test, State

The input and output test is used to check the correct functioning of the connected plant components.

By choosing a setting in the Relay test, the respective relay will be energized and the attached component will be activated. Functionality of the relays and the correctness of the wiring can be verified.

Line no.	Operating line	Factory setting
7700...7952		See manual boiler

Important:

Selected sensor values are updated within a maximum of 5 seconds. The display is made without measured value correction.

State

The current operating state of the plant is visualized by means of status displays.

Line no.	Operating line
8000	State HC 1
8001	State HC 2
8002	State HC P
8003	State DHW
8005	State Boiler
8007	State Solar
8008	State Solid fuel boiler
8009	State Burner
8010	State Buffer
8011	State Swimming pool

Menu: Diagnostics

Diagnose cascade

For diagnostics purposes, a number of setpoints, actual values, switching states of relays and heat source priorities can be displayed.

Line no. Operating line
8100...8150 -

Diagnostics heat generation

For diagnostic purposes, the various setpoints, actual values, relay switching states and meter readings can be displayed.

Line no. Operating line
8304...8570 -

Diagnostics consumers

For diagnostic purposes, the various setpoints, actual values, relay switching states and meter readings can be displayed.

Line no. Operating line
8700...9058 -

Menu: Burner control

The burner control guarantees the proper functioning of the boiler including boiler start up, shutdown and flame supervision. The procedure itself is defined by parameters set by the manufacturer.

The values in the table below are classed to various boiler capacities and they should not be changed by installers. Only in certain cases should they be changed by Elco engineers.

Prepurge time

The prepurge time can be adjusted via the operating section. It can only be set to a value greater than 10 seconds.

Required speed ignition

Required speed at the time of ignition, which can be adjusted via the operating section. It can only be set to a value smaller than 3000rpm.

Required speed LF

Speed required at low-fire, which can be adjusted via the operating section. It can only be set to a value greater than "Required speed LF min".

Required speed HF

Speed required at high-fire, which can be adjusted via the operating section. It can only be set to a value greater than "Required speed HF max".

Postpurge time

Duration of postpurging, which can be adjusted via the operating section. It can only be set to a value greater than 7 seconds.

Forced prepurging on error

After a reset following lockout, after Power On, or after 24 hours in standby mode, forced prepurging takes place, in the TV phase for 21 s or "Prepurge time" if "Prepurge time" exceeds 21 s.

Off

Function is deactivated.

On

Function is activated.

Line no.	Operating line Factory setting
9500	Prepurge time	See manual boiler
9512	Required speed ignition
9524	Required speed LF
9529	Required speed HF
9540	Postpurge time
9615	Forced prepurging on errorOffOn
9650	Chimney dryingOffTemporarilyPermanently

Chimney drying

When chimney drying is activated, the function is started after shutdown when changing to standby. Chimney drying can be interrupted by any heat request and can be restarted when the sequence of phases returns to standby.

Off

Function is deactivated.

Temporarily

The duration of chimney drying is 10 minutes.

Permanently

Chimney drying is continuously performed in standby mode.

Notes

Notes

Notes

Service:

3D rendered image of a hand pointing at a button (no text or symbols visible)

Front view of a control panel with digital display and rotary buttons (no visible text or symbols)

Généralités

Paramétrage

| t | TRx | TRw | |-------|-------|-------| | 0 | 0 | 0 | | 1 | -1 | -1 | | 2 | 0 | 0 | | 3 | 1 | 1 | | 4 | -1 | -1 | | 5 | 0 | 0 | | 6 | 1 | 1 | | 7 | -1 | -1 | | 8 | 0 | 0 | | 9 | 1 | 1 | | 10 | -1 | -1 | | 11 | 0 | 0 | | 12 | 1 | 1 | | 13 | -1 | -1 | | 14 | 0 | 0 | | 15 | 1 | 1 | | 16 | -1 | -1 | | 17 | 0 | 0 | | 18 | 1 | 1 | | 19 | -1 | -1 | | 20 | 0 | 0 | | 21 | 1 | 1 | | 22 | -1 | -1 | | 23 | 0 | 0 | | 24 | 1 | 1 | | 25 | -1 | -1 | | 26 | 0 | 0 | | 27 | 1 | 1 | | 28 | -1 | -1 | | 29 | 0 | 0 | | 30 | 1 | 1 | | 31 | -1 | -1 | | 32 | 0 | 0 | | 33 | 1 | 1 | | 34 | -1 | -1 | | 35 | 0 | 0 | | 36 | 1 | 1 | | 37 | -1 | -1 | | 38 | 0 | 0 | | 39 | 1 | 1 | | 40 | -1 | -1 | | 41 | 0 | 0 | | 42 | 1 | 1 | | 43 | -1 | -1 | | 44 | 0 | 0 | | 45 | 1 | 1 | | 46 | -1 | -1 | | 47 | 0 | 0 | | 48 | 1 | 1 | | 49 | -1 | -1 | | 50 | 0 | 0 | | 51 | 1 | 1 | | 52 | -1 | -1 | | 53 | 0 | 0 | | 54 | 1 | 1 | | 55 | -1 | -1 | | 56 | 0 | 0 | | 57 | 1 | 1 | | 58 | -1 | -1 | | 59 | 0 | 0 | | 60 | 1 | 1 | | 61 | -1 | -1 | | 62 | 0 | 0 | | 63 | 1 | 1 | | 64 | -1 | -1 | | 65 | 0 | 0 | | 66 | 1 | 1 | | 67 | -1 | -1 | | 68 | 0 | 0 | | 69 | 1 | 1 | | 70 | -1 | -1 | | 71 | 0 | 0 | | 72 | 1 | 1 | | 73 | -1 | -1 | | 74 | 0 | 0 | | 75 | 1 | 1 | | 76 | -1 | -1 | | 77 | 0 | 0 | | 78 | 1 | 1 | | 79 | -1 | -1 | | 80 | 0 | 0 | | 81 | 1 | 1 | | 82 | -1 | -1 | | 83 | 0 | 0 | | 84 | 1 | 1 | | 85 | -1 | -1 | | 86 | 0 | 0 | | 87 | 1 | 1 | | 88 | -1 | -1 | | 89 | 0 | 0 | | 90 | 1 | 1 | | 91 | -1 | -1 | | 92 | 0 | 0 | | 93 | 1 | 1 | | 94 | -1 | -1 | | 95 | 0 | 0 | | 96 | 1 | 1 | | 97 | -1 | -1 | | 98 | 0 | 0 | | 99 | 1 | 1 | | | | | |

| | | | | | | The chart includes a legend for 'ON' and 'OFF' in the bottom row. The data is presented in a table format as shown above and below the table. The values are labeled on the table above and below the table below. The data series includes 'TRx' and 'TRw'.

Protec. antisurchauffe

Protection anti surchauffe du circuit chauffage pompe

3D rendered image of a hand pointing at a button (no text or symbols visible)

Front view of a gray industrial control panel with digital display and rotary knob (no visible text or symbols)

Basisprincipes

Legenda:

Programmering

Tapwater separaat circuit

Sturing ketelpomp/Tapw UV

2. Pomptrap Q21, Q22, Q23

Opnemertype collector