SHP M ECO R5 - Water heater SIME - Free user manual and instructions

Product Type	Controller for Inverter Air/Water Heat Pump and Chiller
Compatible Models	SHP M ECO 006A, 008A, 010, 010T, 012, 012T, 014, 014T, 016, 016T
Power Supply	230V~ 50Hz
Controller Outputs	230Vac, 50Hz, 2A (AC1) per output
Main Functions	Heating, Cooling, Domestic Hot Water (DHW), Defrost, Antifreeze, Integration Heaters, Boiler Management
User Interface	Keypad with MODE/ESC, PRG, UP/DOWN keys; LED indicators for modes, alarms, defrost, compressor, pump, DHW
Setpoint Range (Heating)	25°C to 60°C (default 45°C)
Setpoint Range (Cooling)	5°C to 25°C (default 7°C)
DHW Setpoint Range	25°C to 60°C (default 48°C)
Communication	Modbus RTU (RS485), USB port for firmware/parameter update
Dynamic Setpoint	Climatic compensation based on outdoor temperature or 0-10V/ratiometric input
Circulator Modes	Continuous, on-demand, periodic activation; proportional speed control
Safety Features	High/low pressure alarms, flow switch, antifreeze, overtemperature, inverter protections
Defrost Cycle	Automatic in heating mode; adjustable parameters
Integration Options	Electric heaters, boiler, solar thermal (with optional GI module), secondary circulator
Optional Accessories	Hi-T2 remote touch screen, GI module for mixer valve and solar integration, KA antifreeze heater kit
Compliance	Designed for use by trained operators; WEEE directive 2012/19/EU
Maintenance	Cleaning and maintenance by qualified personnel only; disconnect power before servicing
Manual Languages	Original manual in English; translations available on request

Frequently Asked Questions - SHP M ECO R5 SIME

What is the SIME SHP M ECO R5 controller used for?

The SIME SHP M ECO R5 is a controller for inverter air/water heat pumps and chillers with axial fans. It manages heating, cooling, and domestic hot water (DHW) production, as well as integration with auxiliary heaters and boilers.

How do I set the operating mode (heating/cooling/off)?

Press the MODE/ESC key to cycle through OFF → COOL → HEAT → OFF (and COOL+SAN/HEAT+SAN if DHW is enabled). The selected mode is indicated by the corresponding LED.

What should I do if the controller shows an alarm code?

Refer to section 14 of the manual for alarm descriptions. Examples: E001 (high pressure), E002 (low pressure), E006 (flow switch). Some alarms reset automatically; others require manual reset via the MODE/ESC key after resolving the cause.

Can I adjust the water temperature setpoint?

Yes. Press PRG to enter the Setpoint menu. Use UP/DOWN to select Coo (cooling), Hea (heating), or San (DHW), then PRG to edit and confirm. Values can be set within allowed ranges (e.g., Hea: 25–60°C).

How does the domestic hot water function work?

When enabled (parameter H10), the controller uses a DHW tank probe (connected to ST6). If the tank temperature falls below the San setpoint, the unit activates the DHW valve and runs the compressor at maximum frequency until the setpoint is reached. Defrosting is never performed on the DHW side.

What maintenance is required for the controller?

Routine maintenance should be performed by qualified personnel only. Keep the manual accessible and clean the exterior with a dry cloth. Do not spray water on the unit. Always disconnect power before any service.

Can I connect the unit to a building management system?

Yes. The controller supports Modbus RTU communication over RS485. Default settings: 9600 baud, even parity, 8 data bits, 1 stop bit, device ID 1. Parameters H124–H126 can be changed for custom configuration.

What does the 'Defrost' LED indicate?

The defrost LED is ON when a defrost cycle is active, OFF when disabled or finished, and FLASHING when the defrost interval countdown is in progress. Defrost only occurs in heating mode to prevent ice formation on the coil.

How do I update the firmware or parameters?

Copy the update files to a USB pen drive. Set the unit to standby and power off. Insert the USB, power on, then navigate to USB menu (installer password required). Select UPdF (firmware) or UPPA (parameters) and confirm. The display shows progress; after completion, power off and remove the USB.

What safety features protect the heat pump?

The controller includes multiple protections: high/low pressure alarms (E001/E002), flow switch alarm (E006), antifreeze alarm (E005), overtemperature protection (E018), and inverter fault alarms (E851–E971). These shut down the compressor or entire unit to prevent damage.

USER MANUAL SHP M ECO R5 SIME

Chiller and Inverter Air/Water heat pumps with axial fans

Controller Manual

Model

SHP M ECO 006A

SHP M ECO 008A

SHP M ECO 010

SHP M ECO 010T

SHP M ECO 012

SHP M ECO 012T

SHP M ECO 014

SHP M ECO 014T

SHP M ECO 016

SHP M ECO 016T

EN

Fonderie SIME S.p.A.

cod. 7500375 - R08

08 10-2022 M.S. A.B. Parameter visibility alignment, insertion of GI module chapters
07 05-2022 E.G. A.B. Update sizes 006A, 008A, elimination of GI module chapters
06 12-2021 M.S. A.B. Elimination cap. 9.1
05 03-2021 A.B. A.B. Update chap. 8-9.1-10.15-10.16-10.17-14.3
04 09-2020 M.S. A.B. Compressor shutdown activation logic update
03 06-2020 M.S. A.B. Adding flowmeter chapter
02 03-2020 M.S./K.G. A.B. Modification of the chapters 6, 9,11, 12 and 15
01 10-2019 M.S. A.B. Updating
Rev	Data	Redatto	Approvato
Catalogo / Catalogue / Katalog / Catalogue			Serie / Series / Serie / Serie / Série
MCO0110L8500-08			CONTROLLER FOR AIR/WATER INVERTER-CONTROLLED CHILLERS AND HEAT PUMPS WITH AXIAL FANS

The electrical and electronic products and any waste should not be disposed of with normal household waste, but disposed of according to WEEE law in accordance with the directive 2012/19/EU, inquiring thereof at the place of residence or with the retailer in the case where the product is replaced with a similar one.

INDEX

1.HOW TO KEEP THE MANUAL 6

1.1 GRAPHIC SYMBOLS USED IN THE MANUAL 6

1. PERMITTED USED 6

3.GENERAL SAFETY GUIDELINES 6

3.1 PERSONAL PROTECTIVE EQUIPMENT....6

3.2 WORKERS' HEALTH AND SAFETY 6

4.PURPOSE AND CONTENTS OF THE MANUAL 8

5.USER INTERFACE - CONTROLLER....9

5.1 MENU....9

5.2 SETPOINT MENU....9

5.3 PASSWORD MENU [PSS]....10

5.4 PROBES MENU [tP] 10

5.5 ALARMS MENU [Err] 10

5.6 DIGITAL INPUTS MENU [Id]....10

5.7 PARAMETERS MENU [Par]....10

5.8 OPERATING HOURS MENU [oHr]....11

5.9 MENU VERSIONE FIRMWARE [Fir]......11

5.10 LOG MENU [HiSt].... 11

5.11 USB MENU [USB] 11

5.11.1 FIRMWARE UPDATE [UPDF]......11

5.11.2 PARAMETERS UPDATE [UPPA] 11

5.12 DISPLAY....11

5.12.1 LED 12

5.13 TERMINAL BLOCK 12

1. EDITING DYNAMIC SET-POINT ...... 13

6.1 SETTINGS FOR STANDARD CLIMATIC CURVES 13

6.2 EDIT THE SET-POINT FROM 0-10V INPUT OR FROM RATIOMETRIC INPUT .....14

7.CIRCULATOR....14

7.1 CONTINUOUS OPERATION [P03=0] - Default 15

7.2 OPERATION ON CALL BY TEMPERATURE CONTROLLER [P03=1]....15

7.3 OPERATING ON CALL BY TEMPERATURE CONTROLLER WITH PERIODIC ACTIVATION....15

7.4 OPERATION WITH HEATER ACTIVE 15

7.5 PROPORTIONAL REGULATION OF THE CIRCULATOR....15

7.6 SYSTEM VENTING 16

8.COMPRESSOR OR ACTIVATION LOGIC 16

8.1 REGULATION IN COOLING MODE 16

8.2 REGULATION IN HEAT MODE....16

9.DISSIPATION FAN CONTROL....17

10.CONTROLLER FUNCTIONS 17

10.1 ANTIFREEZE PROTECTION HEATERS (IF KA ACCESSORY IS AVAILABLE)......17

10.2 ENABLING DOMESTIC HOT WATER PRODUCTION....17

10.2.1 MEMORISING THE PROBE IN HEATING MODE 18

10.2.2 HEATING MODE ON DHW STORAGE TANK....18

10.2.3 INSUFFICIENT HEAT EXCHANGE IN A DHW SYSTEM 18
10.3 REMOTE-CONTROLLED FUNCTIONS....18
10.3.1 ON/OFF....18
10.3.2 SUMMER/WINTER MODE CHANGE 19
10.3.3 DHW CALL FROM DIGITAL INPUT....19
10.4 SYSTEM WATER REMOTE PROBE....19
10.5 AUXILIARY HEATERS 19
10.5.1 PLANT HEATER....19
10.5.2 PLANT HEATER IN DEFROST....20
10.5.3 DHW HEATER 20
10.5.4 SINGLE PLANT/DHW INTEGRATION HEATER....20
10.6 INTEGRATION HEATER SELECTION MODE....20
10.7 CIRCULATOR MANAGEMENT WITH HEATER ON....20
10.8 BOILER ENABLING 20
10.9 ACTIVATION OF INTEGRATION HEATERS AND BOILER IN JOINT OPERATION AND IN SUBSTITUTION OF HEAT PUMP COMPRESSOR....21
10.9.1 OPERATION IN HEAT PUMP MODE 21
10.9.2 JOINT OPERATION (I BRACKET) 21
10.9.3 JOINT OPERATION (II BRACKET) 21
10.9.4 OPERATION IN SUBSTITUTION 22
10.10 OPERATING BRACKETS - ACTIVATION OF INTEGRATION HEATERS (PLANT REMOTE WATER PROBE NOT ENABLED) 22
10.10.1 AUXILIARY SYSTEMS OFFSET MANAGEMENT 25
10.11 WARNINGS....25
10.11.1 PLANT SEASON 25
10.11.2 ALARM 25
10.11.3 MACHINE BLOCK....25
10.11.4 DEFROST 25
10.12 DEFROST CYCLE 25
10.13 COMPRESSOR CRANKCASE HEATER....26
10.14 DOUBLE SET-POINT 26
10.15 MINIMUM HZ FUNCTIONALITY....26
10.16 MAXIMUM HZ FUNCTIONALITY 26
10.17 FLOWMETER 26
11.FUNCTIONS THAT CAN BE ACTIVATED WITH HI-T2 ACCESSORY (OPTIONAL) .....27
12.FUNCTIONS THAT CAN BE ACTIVATED WITH GI MODULE (OPTIONAL)....27
12.1 I/O RESOURCES OF THE CONTROLLER....27
12.2 MANAGEMENT OF SECONDARY CIRCULATOR/BOOSTER PUMP (WITH ROOM THERMOSTAT) 28
12.3 MIXER VALVE MANAGEMENT 28
12.3.1 DETERMINATION OF SETPOINT 28
12.3.2 RADIANT PANELS CIRCUIT PUMP 28
12.3.3 MIXER VALVE....28
12.4 SOLAR INTEGRATION MANAGEMENT 29
12.4.1 ACTIVATION OF SOLAR CIRCULATOR 29

12.4.2 COLLECTOR PROTECTION 29
12.4.3 COLLECTOR OVERTEMPERATURE ALARM 29
12.4.4 DHW OVERTEMPERATURE ALARM 29
12.4.5 SOLAR EXHAUST VALVE 29
12.4.6 DISSIPATION OF SOLAR TANK HEAT 29
12.4.7 ANTIFREEZE....29
13.TABLES OF PERMITTED SETUPS FOR USER AND INSTALLER 30
14.ALARMS....33
14.1 [E006] FLOW SWITCH 34
14.2 [E018] HIGH-TEMPERATURE 34
14.3 [E020] INVERTER TRASDUCTORS....34
14.4 [E005] ANTIFREEZE 34
14.5 [E611÷E681] PROBE ALARMS 34
14.6 [E801] TIMEOUT INVERTER....34
14.7 [E851 ÷ E971] INVERTER 34
14.8 [E00] REMOTE ON/OFF (WARNING) 34
14.9 [E001] HIGH-PRESSURE 34
14.10 [E002] LOW-PRESSURE 34
14.11 [E008] DRIVER LIMITATION 34
14.12 [E041] 4-WAY VALVE....34
14.13 POWER FAILURE 35
14.14 UTILITIES BLOCK ALARM TABLE 35
15.MODBUS VARIABLES 35

1. HOW TO KEEP THE MANUAL

The manual has to always be kept together with the unit it refers to. It has to be stored in a safe place, away from dust and moisture. It must be accessible to all users who shall consult it any time they are in doubt on how to operate the equipment.

The company reserves the right to modify its products and related manuals without necessarily updating previous versions of the reference material. We also decline any responsibility for possible inaccuracies in the manual if due to printing or transcription errors.

The customer shall store any updated copy of the manual or parts of it delivered by the manufacturer as an attachment to this manual.

The company is available to give any detailed information about this manual and to give information regarding the use and the maintenance of its own units.

1.1 GRAPHIC SYMBOLS USED IN THE MANUAL

Indicates prohibited operations.

Indicates operations that can be dangerous for people and/or disrupt the correct operation of the unit.

Hazardous electrical voltage - Electrocution hazard

Indicates important information that the operator has to follow in order to guarantee the correct operation of the unit in complete safety. Also indicates some general information.

2. PERMITTED USED

• The company excludes any contractual and extra contractual liability for damage caused to persons, animals or objects, by incorrect installation, setting and maintenance, improper use of the equipment, and the partial or superficial reading of the information contained in this manual.
• These units are built for the heating and/or cooling of water. Any other use not expressly authorised by the manufacturer is considered improper and therefore not allowed.
• All the work must be executed by skilled and qualified personnel, competent on the existing regulations in country of installation.
• This appliance is intended to be used by expert or trained operators in shops, light industry and in factories, or for commercial use by non-expert personnel.
• The appliance may be used by children at least 8 years old and by persons with reduced physical, sensory or mental capabilities or without experience or the necessary knowledge as long as they are supervised or after they themselves have received instructions on the safe use of the appliance and understand the relevant dangers. Children must not play with the appliance. The cleaning and maintenance which the user is expected to carry out on the unit cannot be done by children without supervision.

3. GENERAL SAFETY GUIDELINES

Before starting any type of operation on the unit, every user and operator must have perfect knowledge of operation of the machine and of its controls and have read and understood all of the information in this manual and in the user-installer manual.

3.1 PERSONAL PROTECTIVE EQUIPMENT

Refer to the user-installer manual which accompanies the unit.

3.2 WORKERS' HEALTH AND SAFETY

Refer to the user-installer manual which accompanies the unit.

	IT IS PROHIBITED:
	To remove and/or to tamper with any safety device.
	For unauthorised personnel to access the electric panel.
	To work on live systems.
	To touch the systems if not authorised to do so
	To allow children or unassisted disabled persons to use the appliance.
	To touch the appliance when barefoot or parts of the body are wet or damp.
	To perform any cleaning operation when the master switch is 'ON'.
	To pull, detach or twist the appliance's electric cables.
	To step on, sit down on and/or place any type of object on the appliance.
	To spray or pour water directly on the unit.
	To dispose of, abandon or leave within reach of children packaging materials (cardboard, staples, plastic bags, etc.) as they may represent a hazard for the environment and one's life.
	To tamper with or replace parts of the unit without the specific consent of the manufacturer. The manufacturer shall have no responsibility whatsoever in case of unauthorised operations.
	CAUTION:
	Refer to the user-installer manual which accompanies the unit before proceeding.
	All the operation described below must be done by QUALIFIED PERSONNEL ONLY.
	The electrical wiring to the terminal blocks has to be done only by qualified personnel.
	Any routine and/or extraordinary maintenance operation must be carried out with the machine stopped and disconnected.
	Do not place your hands or introduce screwdrivers, spanners or any other tools on moving parts.
	The machine operator and maintenance personnel must receive suitable training for the performance of their tasks in safety.
	Only authorised personnel are allowed to have access to the electric panel.
	Operators must know how to use personal protective equipment and the accident-prevention rules of national and international laws and regulations.
	The operator's workplace has to be kept clean, tidy and clear of objects that may hinder free movement. Appropriate lighting of the work place shall be provided so as to allow the operator to carry out the required operations safely. Poor or excessive lighting can cause risks.
	Ensure that work places are always adequately ventilated and that the extraction systems are working, in good condition and in compliance with the requirements of the laws in force.
	Not all of the configurations described can be activated and/or modified at the same time.
	Values other than the default values can jeopardise proper operation of the unit. If in doubt on which value to set, contact our headquarters.
	The company excludes any contractual and extra contractual liability for damage caused to persons, animals or objects, by incorrect installation, setting and maintenance, improper use of the equipment, and the partial or superficial reading of the information contained in this manual.The power supply has to respect the limits shown on the unit's technical label: failing this, the warranty will terminate immediately. Before beginning any type of operation, make sure that power is disconnected.
	Connect the conductors in order: phase, neutral and earth.
	Dimensioning of the power cables must take into consideration the TECHNICAL DATA provided in the user-installer manual accompanying the unit. Also consider any auxiliary heating devices.
	Effective earthing is mandatory; the manufacturer is not responsible for damage caused in case of lack thereof.
	When undergoing maintenance, the unit must be disconnected from the power supply, and it must be unplugged in such a way that the operator can verify from wherever he accesses that the plug remains disconnected.
	Use cables that meet the regulations in force in the different countries.
	After the unit has been running for 10 minutes, make sure that the screws on the power terminal block remain secured.
	Install upstream of each unit a suitable QF protective device and power disconnector, with delayed characteristic curve, with at least 3 mm contact opening and adequate breaking capacity and residual current protection. The size of the circuit breaker must comply with absorption of the unit. See the TECHNICAL DATA in the user-installer manual which accompanies the unit. Also consider any auxiliary heating devices.
	Before performing any operations on the electric panel, IT IS MANDATORY:
	To switch off the unit from the control panel ("OFF" displayed).
	To place the general residual current device QF at "OFF".
	To wait 15 seconds before accessing the electric panel.
	To check the grounding before performing any operation.
	To remain well isolated from the ground, with dry hands and feet, or using insulated platforms and gloves.
	To keep foreign materials away from the systems.

4. PURPOSE AND CONTENTS OF THE MANUAL

The manual is intended to provide the essential information to configure the controller of the units.

It is addressed to the installer and operators of the appliance and it enables them to use the equipment efficiently, even if they do not have any previous specific knowledge of it.

Not all of the functions described can be activated and/or selected at the same time. Contact our headquarters for further information.

The manual describes the machine at the moment it was sold. It must therefore be considered adequate with respect to the state-of-the-art in terms of potentiality, ergonomics, safety and functionality.

The company also performs technological upgrades and does not consider itself obliged to update the manuals of previous machine versions which could even be incompatible. Therefore make sure to use the supplied manual for the installed unit. Contact our headquarters in case of updates or doubts.

The user is recommended to follow the instructions contained in this booklet, especially those concerning safety and routine maintenance.

5. USER INTERFACE - CONTROLLER

MODEESC	Select the operating mode and manually reset any alarms.Each time you press the key you have the following sequence:OFF -> COOL -> HEAT -> OFFIf DHW is enabled, the sequence is the following:OFF -> COOL -> COOL+SAN -> HEAT -> HEAT+SAN -> OFFWhile setting the parameters, this key has the function of sending BACK by one level.
PRG	Grants access to the parameter setting menu and allows you to set the summer, winter and sanitary setpoint.
	UP key. In the parameter setting mode, it allows you to move to a higher menu or to increase the parameter value when in “edit” mode.
	DOWN key. In the parameter setting mode, it allows you to move to a lower menu or to decrease the parameter value when in “edit” mode.

5.1 MENU

The following are the main features for navigating the menus, especially describing functions which are not obvious. The main menu has the following items:

MENU LABEL PASSWORD LEVEL OTHER CONDITIONS
Setpoint Set User Not accessible if connected to Hi-T2
Probes tP Installer ---
Alarms Err User		Only if active alarms
Digital input	Id	Installer	---
Parameters	Par	Installer	---
Password	PSS	User	---
Hours of operations	oHr	Installer	---
USB	USb	Installer	Only with pen drive with relevant update files
Versione Firmware	Fir	Installer	Version, Revision and Sub
Alarm log	Hist	Installer	Only if the log contains data

The PSS menu is accessed to enter the service password and to enable access with a higher user permission. When you have exited the menus, the password must be entered once again to re-enter.

5.2 SETPOINT MENU

The various setpoints can be viewed and edited.

SETPOINT	DESCRIPTION	UNIT DEFAULT	RANGE
Coo	First Summer setpoint	°C	7.0	5 ÷ Co2
Hea	First Winter setpoint	°C	45.0	25 ÷ 60
*San	Sanitary setpoint	°C	48.0	25 ÷ 60
Coo2	Second Summer setpoint	°C	18.0	Coo ÷ 25
Hea2	Second Winter setpoint	°C	35.0	25 ÷ Hea
San2	Second Sanitary setpoint	°C	35.0	25 ÷ Hea
**rCoo	Mixing valve Summer setpoint	°C	15.0	0.0 ÷ 80

SETPOINT DESCRIPTION UNIT DEFAULT RANGE
**rHEA Mixing valve Winter setpoint °C 30.0 0.0 ÷ 80

(*) If the DHW function is enabled, see par. 10.2
(**) If Gi accessory is included, access is only possible with installer password.

5.3 PASSWORD MENU [PSS]

Enter the password according to the desired access level. Confirming the value automatically activates the access level and the items of the menus enabled at that level will appear.

5.4 PROBES MENU [tP]

The value of the different probes appears. The number of visible probes depends on whether or not the I/O expansion modules are present. Particular situations:

• Err = probe faulty
• --- = probe not used (no function associated to that probe)

Entering the "tP" analogue inputs menu with the installer password allows you to read the values of the probes present:

tP DESCRIPTION Unit of measurement
t01 Inlet water temperature °C
t02	Outlet water temperature	°C
t03	Compressor intake temperature	°C
t04	Compressor discharge temperature	°C
t05	Outdoor air temperature	°C
*t06	DHW probe temperature	°C
*t07	Plant remote probe temperature	°C
t09	Low pressure	(bar)
t10	High pressure	(bar)
t11	Water flow	(l/min)
**t15	Mixer probe temperature	°C
**t16	Solar storage tank probe temperature	°C
**t17	Solar collector probe temperature	°C

(*) If enabled

(**) If Gi accessory present and enabled.

Please note that the menu is password-protected.

5.5 ALARMS MENU [Err]

This menu is only displayed if there are triggered alarms. All of the active alarms can be seen.

5.6 DIGITAL INPUTS MENU [Id]

The status of the digital inputs are displayed:

0=deactivated

1=active

----=input not configured

Please note that the menu is password-protected.

5.7 PARAMETERS MENU [Par]

The parameters are gathered into groups. Each group is identified by a three-digit code, while the index of each parameter is preceded by a letter.

DESCRIPTION	IDENTIFICATION CODE OF THE GROUP	PARAMETER INDEX	VISIBILITY
Configuration	CnF	H01-	INSTALLER
Compressor	CP	C01-	INSTALLER
Alarms	ALL	A01-	INSTALLER
Regulation	rE	b01-	INSTALLER
Pump	PUP	P01-	INSTALLER
Electric heaters	Fro	r01-	INSTALLER
Defrost	dFr	d01-	INSTALLER
Hz min / max	LbH	L0-	INSTALLER
*Solar	SUn	S01-	INSTALLER

DESCRIPTION	IDENTIFICATION CODE OF THE GROUP	PARAMETER INDEX VISIBILITY
*Mixer valve rAD i01-	INSTALLER

(*) To configure if Gi module present
To access the installer parameters: PRG -> PSS -> PRG -> (enter Service password) ->PRG ->PAr -> PRG
Please note that the menu is password-protected.

5.8 OPERATING HOURS MENU [oHr]

This displays the operating hours of the compressor (oH1) and of the circulator (oHP1)

Pressing ESC for 3 seconds resets the currently displayed count.

Please note that the menu is password-protected.

5.9 MENU VERSIONE FIRMWARE [Fir]

Firmware Version (uEr), Firmware revision (rEu) and sub (SUb) can be displayed.

Please note that the menu is password-protected.

5.10 LOG MENU [HiSt]

It is only displayed if there are triggered alarms.

5.11 USB MENU [USB]

Only visible with pen drive with related files

The following are the functions available by using the USB pen drive connected the board.

Please note that the menu is password-protected.

CAUTION

All the operations with INSTALLER visibility must be carried out by QUALIFIED PERSONNEL.

The company excludes any contractual and extra contractual liability for damage caused to persons, animals or objects, by incorrect installation, setting and maintenance, improper use of the equipment, and the partial or superficial reading of the information contained in this manual.

5.11.1 FIRMWARE UPDATE [UPdF]

In case of firmware update, it is possible to make the upgrade by means of a USB pen drive, using the USB port in the controller. For the upgrade:

1. Copy the upgrade files in the root directory of a USB pen-drive;
2. Set the unit in Standby and shut it down by placing the master switch at OFF;
3. Insert the pen-drive into the USB port of the controller;
4. Power on the unit, placing the master switch at ON;
5. Access the parameters PRG -> PSS -> PRG -> (enter Service password) -> PRG -> USB -> UPdF -> PRG. Selecting this item starts the automatic firmware upgrade procedure. The display shows a count indicating the transferred Kbytes. At the end of the procedure, "boot" appears on the screen and 4 LEDs light up in sequence;
6. When the installation is complete, the board returns to normal operation and the machine is ready to be activated;
7. Switch off the unit, placing the master switch at OFF;
8. Remove the pen drive from the USB port;
9. Power on the unit, placing the master switch at ON.

5.11.2 PARAMETERS UPDATE [UPPA]

In case of parameters update, it is possible to make the upgrade by means of a USB pen drive, using the USB port in the controller.

For the upgrade:

1. Copy the upgrade parameter files in the root directory of a USB pen-drive;
2. Set the unit in Standby and shut it down by placing the master switch at OFF;
3. Insert the pen-drive into the USB port of the controller;
4. Power on the unit, placing the master switch at ON;
5. Access the parameters PRG -> PSS -> PRG -> (enter service password) -> PRG -> USB -> UPPA -> PRG. Selecting this item starts the automatic parameters upgrade procedure. The display shows a count indicating the transferred Kbytes;
6. When the count is over, switch off the unit, placing the master switch at OFF;
7. Remove the pen drive from the USB port;
8. Power on the unit, placing the master switch at ON.

5.12 DISPLAY

In standard operation, the display shows the water outlet temperature in tenths of Celsius degrees or the alarm code if at least one is active. If several alarms are triggered, the first one is displayed while the second one will be displayed as soon as the first one is reset. In menu mode, the display depends on the current position.

5.12.1 LED

	Cooling mode LED • LED ON if unit is in cooling mode.
	Heating mode LED • LED ON if unit is in heating mode.
	Pump LED • LED ON if pump running.
	Alarm LED • LED ON if an alarm is triggered.
	Defrost LED	• ON if defrosting enabled• OFF if defrosting disabled or finished• FLASHING if defrosting time interval count in progress
	Compressor LED	• ON if the compressor is running• OFF if the compressor is off• FLASHING if pending the timed compressor start
	Domestic hot water LED	• ON if sanitary mode enabled• OFF if sanitary mode disabled• FLASHING if DHW production in progress (sanitary valve on)
	Antifreeze heater LED • LED ON if antifreeze heater on.

5.13 TERMINAL BLOCK

The following is the list of I/O (inputs and outputs) that can be set to activate the functions of the controller.

Resource Parameter		Terminal block X	Factory configuration		Description
			Default value	Function
ST 6 H17 17.1 /	17.2 0 Not set				Analogue input configurable with an NTC-10KΩ probe at 25°C β 3435
ST 7 H18 19.1 /	19.2 0 Not set				Analogue input configurable with an NTC-10KΩ probe at 25°C β 3435
ST 11 H22		22.1 (gnd)22.2 (under-voltage)	0 Not set 0-10Vdc under-voltage input
ID 2 H46 16.1 /	16.2 0			Remote summer/winter mode change(see paragraph 10.3.2)	Voltage-free digital input.To activate the function par. 10.3.2
ID 3 H47 15.1 /	15.2 2			Remote on/off,(see paragraph 10.3.1)	Digital input, voltage-free contact. Default function active.
ID 9 H53 20.1 /	20.2 0 Not set Voltage-free digital input
DO 3 H81		6.1 (phase)6.2 (neutral)	22	Plant integration heater control	230Vac, 50Hz, 2A (AC1) live output(see paragraph 10.5.1)
DO 6 H84		11.1 (phase)11.2 (neutral)	6	DHW valve control(see paragraph 10.2)	230Vac, 50Hz, 2A (AC1) single-phase live output
DO 7 H85		14.1 (phase)14.2 (neutral)	25	Double setpoint valve control(see paragraph 10.14)	230Vac, 50Hz, 2A (AC1) live output
Modbus RTU/RS4825 communication	--	4.1 (gnd)5.1 (R-)5.2 (R+)	--	--	Factory enabled with CM accessory

Example of single phase unit terminal block

6. EDITING DYNAMIC SET-POINT

The regulator allows you to modify the set-point by adding up the value according to the temperature of the outdoor air probe. To use this function, edit the values from parameter b08 to b14 following the information below (edited by the installer).

Parameters of regulator PAr -> rE

• b08 enable = 1/disable=0 dynamic set-point.
• b09 = maximum cooling offset.
  • b10 = maximum heating offset.
• b11 = Cooling outdoor temperature setting.
• b12 = Heating outdoor temperature setting.
  • b13 = Cooling temperature delta.
  • b14 = Heating temperature delta.

Edit the setpoint depending on the outdoor temperature:

HEATING COOLING

6.1 SETTINGS FOR STANDARD CLIMATIC CURVES

HEATING COOLING

CURVE	Setpoint Heat	Setpoint Cool	b08	B09	b10	B11	b12	B13	b14
A	20°C	--	1	--	13°C	--	20°C	--	-25°C
B	20°C	--	1	--	18°C	--	20°C	--	-27°C

CURVE	Setpoint Heat	Setpoint Cool	b08 B09	b10 B11	b12 B13	b14
C	20°C	--	1	--	25°C	--	20°C	--	-29°C
D	40°C	--	1	--	10°C	--	20°C	--	-28°C
E	40°C	--	1	--	15°C	--	20°C	--	-25°C
F -- 5°C	1	5°C -- 37°C -17°C --
G -- 10°C	1	8°C -- 40°C -20°C --

6.2 EDIT THE SET-POINT FROM 0-10V INPUT OR FROM RATIOMETRIC INPUT

Another type of adjustment allows you to edit the setpoint by adding (or subtracting) a value depending on the 0-10V input (if enabled). To enable the function, set H22=40, and, if appropriate, edit the value of the parameter b15 (range 0-10), keeping in mind that if b20=0, 0-10Volt input, if b20=1, ratiometric input.

-b20 = 0 with input at 0 Volt, the current setpoint: (Coo/Hea) setting - b15/2
-b20 = 0 with input at 5 Volt, the setpoint will be that set (Coo/Hea)
-b20= 0 with input at 10 Volt, the current setpoint: (Coo/Hea) setting + b15/2

The signal must be applied to terminals X-22.1 and X-22.2- (see wiring diagrams).
-b20 = 1 with input at 0%, the current setpoint: (Coo/Hea) setting - b15/2
-b20 = 1 with input at 50%, the setpoint will be that set (Coo/Hea)
-b20 = 1 with input at 100%, the current setpoint: (Coo/Hea) setting + b15/2

Through the terminal block, connect X-22.1 and X-22.2, while for +5V connect it directly to pin 3 of CN7 (pin 28 of the controller).

Connector	PIN 1	PIN 2	PIN 3
CN7	GND	Undervoltage input	+5V
Terminal block	X-22.1	X-22.2	Connect it directly to pin 3 of CN7 of the controller

NOTE: in "cooling" mode, having considered that the default cooling setpoint is 7°C , the parameter b15 must not have a value of 6 or higher to prevent the new setpoint set by 0-10V input from being lower than the antifreeze triggering threshold (4°C) .

7. CIRCULATOR

The circulator of the heat pump can be set in the following operating modes: • operation on call by temperature controller

• operating on call by temperature controller with periodic activation;
  • continuous operation (default);

The circulator is switched off immediately if:

- There is a manual reset pump block alarm, including the flow switch alarm;

- With remote input in standby or off, the pump (if running) is always switched off with a delay equal to P02 in tenths of a minute (default P02=2)

The circulator can be configured with P03 to operate independently from the compressor or on call. 0=continuous operation in heating/cooling mode(default P03=0)

1=operating on call by temperature controller

Note: with automatic reset flow switch alarm triggered, the circulator is on even if the compressor is off. The circulator is always on when the antifreeze heaters are running and if operation of the hydraulic pump in antifreeze is enabled. Antifreeze operation is enabled if the regulation temperature drops below P04 °C (default 5°C), and disables if the regulation temperature rises above P04+P05 °C (Default value P05=2,0°C).

7.1 CONTINUOUS OPERATION [P03=0] - Default

The circulator is only off with the unit OFF, in all other cases it is always on.

7.2 OPERATION ON CALL BY TEMPERATURE CONTROLLER [P03=1]

In this operating mode, the circulator is active on demand by the temperature controller, after a delay time of P01 seconds (default P01=30) from when the pump switched on, the compressor switches on as well.

Whereas when switching off, the pump is deactivated after a delay time of P02 minutes (default P02=2) from when the compressor switches off. With automatic reset flow switch alarm triggered, the circulator is on even if the compressor is off.

7.3 OPERATING ON CALL BY TEMPERATURE CONTROLLER WITH PERIODIC ACTIVATION

The function is disabled if P17=0 (default).

If P03=1, the circulator turns on periodically for a time defined by the parameter P17 (in seconds) after a count, lasting a time set by parameter P16 (in minutes), activated when the pump switches off because temperature control fulfilled.

With automatic reset flow switch alarm triggered, the pump is on even if the compressor is off.

The periodical function is a suspended if the antifreeze protection trips.

7.4 OPERATION WITH HEATER ACTIVE

See paragraph 10.8.

7.5 PROPORTIONAL REGULATION OF THE CIRCULATOR

The speed of the circulator changes depending on the temperature difference between the inlet water and outlet water of the heat exchanger, according to the diagram below, where:

• P07: Maximum speed = 100%
• Minimum speed = 75%
- P09: modulating pump inlet/outlet water Delta T setting (°C) (according to model)
• P10: Modulating pump Delta = 3°C (default)

The circulator is at maximum speed in DHW production.

Note: If the parameter r33 > 0, then the circulator can be running on call even to activate the system and/or sanitary heater, see par.10.8.

7.6 SYSTEM VENTING

Function used to vent the system, with the circulator at maximum speed.

To enable the function:

• Controller OFF
• Access the parameters PRG ->PSS ->PRG -> (enter Service password)
• Press the UP and DOWN keys simultaneously for 3 seconds

The circulator switches on at maximum speed, and then switches off after 5 minutes.

The system venting cycle can be exited manually by pressing the MODE/ESC key, or by pressing the UP and DOWN keys simultaneously for 3 seconds.

During this function, the flow switch alarm is disabled, the maintenance technician must guarantee that there is water inside the system.

8. COMPRESSOR OR ACTIVATION LOGIC

The restart of compressors is in operation of a set point referred to the inlet water temperature. It is based on calculation of Si basa sul calcolo di ΔT_set which is the difference between outlet water temperatures and inlet water temperatures, detected while the compressor for thermoregulation is turning off.

8.1 REGULATION IN COOLING MODE

• Tw,out,set = adjusted setpoint in cooling
• ΔT, set = Tw, out, set - Tw, in, set
• b05 = compressor delta cut-off set= 0,2°C (default)
  • b25 = delta cut-on compressor set= 2°C

• The compressor shutdown is set by the parameter b05: the compressor shutdown when Tw,out < Tw,out,set - b05
• The compressor restart starts when Tw,out > (Tw,out,set + ΔT,set + b25)

EXCEPTION: if ΔT , set > 8°C, the compressors restart when the discharge probe temperature is lower than the setpoint 10°C: Tw, out > (Tw, out, set + 10°C).

8.2 REGULATION IN HEAT MODE

• Tw,out,set = setting setpoint in heat mode

• ΔT, set = Tw, out, set - Tw, in, set

• b05 = compressor regulation delta cut-off = 0,2°C (default)
  • b25 = compressor regulation delta cut-on = 2°C

• The compressor shutdown is regulated by parameter b05: the compressor shutdown when is regulated by parameter b05 Tw,out > Tw,out,set + b05
• The compressor restart when: Tw,out < (Tw,out,set - ΔTset - b25)

EXCEPTION: if ΔT , set > 8°C, the compressors restart when the discharge probe temperature is lower than the setpoint 10°C: Tw,out < (Tw,out,set - 10°C)

9. DISSIPATION FAN CONTROL

The dissipation control depends on the condensing pressure in chiller mode, while it depends on the evaporation pressure in heat pump mode. Ventilation control depends on operation of the compressor.

A pre-ventilation occurs every time the compressor switches on and off.

10. CONTROLLER FUNCTIONS

The following is a list of the functions which can be activated in the machine controller; not all of them can be selected simultaneously. Values other than the default values can jeopardise proper operation of the unit. If in doubt on which value to set, contact our headquarters.

10.1 ANTIFREEZE PROTECTION HEATERS (IF KA ACCESSORY IS AVAILABLE)

If the optional KA kit is present, the function is active by default.

The water antifreeze heaters on the faces of the evaporator plates even activate with the machine off (but powered) when the delivery water temperature drops below r02 °C (default 4°C) in "heating" mode or below r03 °C (default 4°C) in "cooling" mode or when switched "OFF". The heaters are switched off when the temperature measured by the outlet water probe exceeds r02+r06 in "heating" or r03+r06 in "cooling" or when "OFF" (default value r06=2.0 °C).

The heating cable at the base of the machine activates when the outdoor air temperature drops below 3° C. It deactivates when the outdoor temperature rises above 5° C.

10.2 ENABLING DOMESTIC HOT WATER PRODUCTION

To activate the domestic hot water functions, connect a probe to be placed inside the tank to terminals X17.1-X17.2 (enabled as analogue input). The sanitary function must be enabled after positioning and connecting the temperature probe.

I/O resource - Parameter VALUE Function
H10	0 (default) Function disabled
	1	Function active in heating and cooling mode.The remote on-off function does not disable DHW production.
	2	Function active in heating and cooling mode.The remote on-off function disables DHW production.
	3	Function active in heating mode.The remote on-off function does not disable DHW production.
	4	Function active in heating mode.The remote on-off function disables DHW production.
	5	Function active in cooling mode.The remote on-off function does not disable DHW production.
	6	Function active in cooling mode.The remote on-off function disables DHW production.
ST6 can be activated via H17 6 DHW temperature probe enabling
DO6 can be activated via H84 6 DHW valve control

If the domestic hot water temperature is lower than its setting (set by default at 48° C, edited by accessing the menu PRG->Set->SAN) the machine activates the DHW valve and the compressor is set at maximum frequency, starting modulation one degree before the setting and switching off one degree after. When the set point is reached, the valve goes back to the rest condition and the compressor starts to regulate normally.

Switching from utility water to domestic hot water, the working probe changes from "water outlet probe" to "DHW tank probe". Switching from winter mode to sanitary mode, the compressor does not switch off and is brought to the maximum frequency established by the controller, whereas switching from summer mode to domestic hot water, the compressor is switched off and waits a safety time.

Defrosting is always carried out in winter mode on the utility side, and never on the domestic hot water tank.

NOTE:

-If H10 = 1/3/5. Switching off the unit by remote control (remote on-off, see paragraph 10.4.1) does not affect domestic hot water operation. The unit goes to priority sanitary mode just powered on. The display on the machine shows the temperature detected by the probe inside the DHW tank. When the sanitary cycle has finished, the display goes back to showing the water outlet probe temperature.

If the remote ON-OFF digital input (terminals 15.1 / 15.2) is open, with sanitary function enabled (H10=1 and H20=6), the wording "SAN" will appear on the machine display. When the sanitary cycle has finished, the display goes back to showing "E00" indicating that the remote ON-OFF contact is open.

-If H10 = 2/4/6, the remote on-off function disables domestic hot water production and operation of the heat pump in heatin and cooling mode, system side.

10.2.1 MEMORISING THE PROBE IN HEATING MODE

Switching from utility water to domestic hot water, the working probe changes from "water outlet probe" to "DHW tank probe". For this reason, in heating mode, before entering sanitary mode, the last value read by the heat pump delivery probe is stored.

When sanitary temperature control is fulfilled, the system side temperature of reference goes back to that previously stored. The memory function interrupts:

• when the temperature read by the probe becomes lower than the stored value;
• or when a time equal to b06 seconds (default b06 = 45) has elasped.

10.2.2 HEATING MODE ON DHW STORAGE TANK

If the parameter H130=1, the machine exploits the DHW storage tank even for central heating. In these conditions, the outlet of the DHW valve is also enabled during operation in heating mode and not only in sanitary mode. The valve is deactivated during defrosting and in cooling mode. When H130=1, the DHW integration heater can be enabled also to act as system integration heater: to do this, set r10=1 e r15=2 (for other r15 settings see Paragraph 10.6.3); furthermore no digital output must be set as system integration heater.

10.2.3 INSUFFICIENT HEAT EXCHANGE IN A DHW SYSTEM

During DHW production, if the heat pump flow probe detects a temperature higher than 60° C, the DHW valve output is de-energised (DO6), and the value of the DHW probe at this time is recorded (Tsan,set).

-if the operation is San or Cool+San the compressor is stopped.

-If the operation is Heat+San, the system evaluates for b06 seconds whether there is a demand for heating from the system. If the system requires it, the compressor continues to work on the system, otherwise it is switched off.

-If the DHW resistor is present (e.g. DO3, H81=26), r15 = 0 or 1 and r24=2 or 3 it is activated until the DHW setpoint detected by the DHW probe is met (and any offset).

The compressor restarts when the flow temperature of the heat pump falls below 60° C again and the temperature measured by the DHW probe is lower than Tsan, set - 4° C.

10.3 REMOTE-CONTROLLED FUNCTIONS

Not all of the configurations can be activated and/or modified at the same time

The terminal block has digital inputs to control the unit via an external consent.

10.3.1 ON/OFF

The function is enabled by default on digital input ID 3 (terminals X15.1/X15.2).

Remove the terminal block jumper to place the unit in standby (the text "E00" appears on the controller display). When the contact closes, the machine comes out of standby and the circulator switches on for 2 minutes.

Function enabled by default (Parameter H47=2).

I/O Resource- Parameter Function

ID3 can be activated via H47 Enables remote On /Off function

If the unit is switched off by remote control during defrosting, the heat pump finishes defrosting and then places itself in off mode via remote control.

10.3.2 SUMMER/WINTER MODE CHANGE

The function can be set on digital input ID 2 (terminals X16.1/X16.2).

Heating or cooling mode of the heat pump can be managed by remote control.

I/O resource - Parameter Value Function

ID2 can be activated via H46 3

Open contact -> heat pump in cooling mode. Closed contact -> heat pump in heating mode.

The poles of the digital input can be swapped by setting H75 = 2

10.3.3 DHW ENABLE FROM DIGITAL INPUT

Function which can be activated instead of managing the double setpoint.

If DHW mode is enabled, instead of using the temperature probe, the domestic hot water function can be activated by the opening/closing of a digital input on the unit. This function is recommended when using two or more heat pumps in cascade hydronically connected to the same domestic hot water storage tank; this way activation of the domestic hot water function is controlled by the tank probe connected to the first unit, while the other units are enabled automatically by digital consent.

The system goes to sanitary mode when the digital input closes and exits DHW production when it opens.

I/O resource - Parameter Value Function
ID9 can be activated via H53 28		Closed contact ->active DHW call.Open contact ->inactive DHW call.

The poles of the digital input can be swapped by setting H76=1

The SAN setpoint of the heat pump is not considered, the designer is in charge of managing this setpoint, taking into account domestic hot water protection and configuration of the entire system.

10.4 SYSTEM WATER REMOTE PROBE

In some engineering solutions (e.g. heat pump in parallel to boiler on same hydronic circuit and shut off diverter valve) it could be necessary to enable a system remote temperature probe so that the controller can correctly process the management.

I/O resource- Parameter Value Description
ST7 can be activated via H18 41 Enables plant remote probe

In the presence of the system remote probe, if the storage tank temperature is satisfied, it is avoided to activate the compressors even if the regulation probe requires it.

The conditions for the application of thermoregulation lockout are as follows:

- the heat pump is not performing DHW

- the heat pump is not defrosting

- all compressors are switched-off

The blocking conditions are as follows:

Operating mode Blocking conditions of thermoregulation
	heating System remote probe > setpoint - b22
	cooling System remote probe < setpoint + b22

Nota: b22=5°C. See paragraph 13.

10.5 AUXILIARY HEATERS

In certain engineering solutions, it could be necessary to use an additional heater for the plant or for domestic hot water. Parameter r24 must be set to define the operating mode of the additional heaters:

- r24=0 integration heaters not used;

-r24=1 only plant integration heater used;

- r24=2 only DHW integration heater used;

- r24=3 both plant and DHW integration heaters used.

10.5.1 PLANT HEATER

If the regulation temperature remains below water setpoint in heating (Hea) - 0.5°C for a time equal to r12 the integration heater is activated according to operation of the machine in joint time slots or in substitution, as indicated in Paragraph 10.11.

The heater switches off when the setpoint is reached (also taking into account an offset set with parameters r29 or r30).

If the regulation temperature remains below the water setpoint minus r11 (°C) and the machine is blocked due to triggering of an alarm, the heater switches on. It switches off when the machine exits the alarm block.

I/O resource - Parametro Value Function
r10 1 Function enabling
r11 0.5°C (default) Heaters in heating integration delta
r12	10 minutes (default)	Heaters in heating integration delta
r24	1/3	Type of use of heaters
D03 can be activated via H81	22	Plant integration heater

10.5.2 PLANT HEATER IN DEFROST

During the defrost cycle (see Paragraph 10.12.2), setting r21=1 (in addition to r10=1 and r24=1 or 3) activates the plant side electric heater, if requested (regulation temperature lower than water setpoint -r11(°C), without waiting the time defined by r12.

10.5.3 DHW HEATER

Function which can be activated instead of managing the plant heater

This is an additional resource for heating the domestic hot water storage tank if the compressor alone is not capable of fulfilling the request in a reasonable time.

If domestic hot water production lasts longer than r16 (minutes) or if the machine blocks due to triggering of an alarm, the heater switches on. It switches off when the unit finishes domestic hot water production (also taking into account an offset on the setpoint with parameter r31, as explained in Paragraph 10.11.1).

I/O resource - Parameter Value Function
r15 1 Function enabling
r16 10 minutes (default) DHW integration activation delay
r24 2/3 Type of use of heaters
D03 can be activated via H81 26 Plant integration heater

Note: The domestic hot water function must be enabled (see paragraph 10.2)

10.5.4 SINGLE PLANT/DHW INTEGRATION HEATER

By configuring the DHW integration heater, it is possible to use this heater declared also as plant integration heater, setting the parameter r15=2 and r24=3.

In case of plant integration demand, the heater declared as DHW integration is activated, thus allowing to have a single integration heater for plant, domestic hot water and plant under defrost.

10.6 INTEGRATION HEATER SELECTION MODE

The priority can be set in the order to activate the plant side and sanitary side integration heaters; specifically the configurations are:

1. r14=0 (default), the heaters can be activated simultaneously, if present;
2. r14=1, the heaters can be activated, excluding one another:
   2.1. r20=0, priority to the plant (the DHW heater only switches on if the temperature control for the plant side heater is fulfilled);
   2.2.r20=1, priority to DHW (the plant side heater only switches on if the temperature control for the sanitary side heater is fulfilled).

10.7 CIRCULATOR MANAGEMENT WITH HEATER ON

The circulator of the heat pump can be activated when the plant and/or DHW integration heaters are active with the compressors not running (by substitution, by alarm or by integration in bracket II or III).

-r33 = 0: The circulator of the heat pump is activated on demand of the compressors or boiler,

-r33 = 1: The circulator of the heat pump is activated if the plant heater is active.

-r33 = 2: 2: The circulator of the heat pump is activated if the DHW heater is active.

-r33 = 3: The circulator of the heat pump is activated if the plant or DHW heater is active.

The circulator switches off after post-pumping (P02).

10.8 BOILER ENABLING

Function which can be activated instead of managing the double setpoint.

This is an additional resource to enable the boiler in integration or substitution of the heat pump.

Define the use mode by setting the parameter r23:

• r23=0 (default) boiler not used (operating priority of heaters);
• r23=1 only boiler on plant used (operating priority of heaters);
• r23=2 only DHW boiler used (operating priority of heaters);
• r23=3 DHW and plant boiler used (operating priority of heaters);
• r23=4 only boiler on plant with priority used (no heater operating priority);
• r23=5 only boiler in sanitary with priority used (no heater operating priority);
• r23=6 boiler on plant and in sanitary with priority used (no heater operating priority);

Define the supply of the boiler, setting parameter r32:

• r32 = 0: boiler without circulator with temperature control by heat pump,
• r32 = 1: boiler with autonomous circulator with temperature control by heat pump;
• r32 = 2: boiler without circulator with autonomous temperature control;
• r32 = 3: boiler with circulator with autonomous temperature control.

I/O resource- Parameter Value Function
r10 1	Plant integration enabling
r12	10 minutes (default)	Plant integration activation delay
r15 1 DHW integration enabling
r16	10 minutes (default)	DHW integration activation delay
r23	1 ÷ 6	Type of use of boiler
r32	1 ÷ 3	Boiler supply
DO3 can be activated via H81	29	Boiler enabling

10.9 ACTIVATIONOFINTEGRATIONHEATERSANDBOILERINJOINTOPERATIONANDINSUBSTITUTION OF HEAT PUMP COMPRESSOR

The auxiliary parts that can be used for joint operation or for operation in substitution are:

• boiler
• plant integration heater
  • DHW integration heater

Considering the operating modes in heating and/or DHW, there are 4 operating areas:

If you need to change the values of the parameters r22, r28, r08, follow r22 ≥ r28 ≥ r08 .

Setting r22=r28 allows you to eliminate the zone relative to joint operation bracket I; setting r28=r08 allows you to eliminate the zone relative to joint operation bracket II; setting r22=r28=r08 allows you to eliminate both brackets relative to joint operation.

Do not modify value r08, as it could jeopardise operation of the unit

Normale operation of the heat pump in which the integration heaters and-or the boiler only intervene when a heat pump alarm is triggered.

If the outdoor temperature is between r22 and r28, the compressor operates in synergy with the auxiliary heaters in winter or DHW mode.

In this operating bracket, first the heat pump is activated and after r12 minutes the plant side auxiliary heaters, or after r16 minutes the sanitary side auxiliary heaters.

The intervention priorities are defined by the parameters r14, r20, r23, r24.

It goes back to normal operation if the outdoor temperature is greater than r22+1.0 (°C).

NOTE: In the joint operating bracket, the boiler is temperature controlled by the plant water remote probe (if enabled). In particular, if the temperature detected by the remote probe is lower than the Hea setpoint, the boiler is switched on and then will go off when the temperature detected by the remote probe is higher than the Hea setpoint. The heat pump follows the activation logic described in paragraph 10.5.

If the remote plant water probe is not enabled, the boiler will be managed by the delivery probe of the heat pump.

If the outdoor temperature is between r28 and r08, the compressor operates in synergy with the auxiliary heaters.

In this operating bracket, first the boiler is activated, then the heat pump and auxiliary heaters intervene after a time defined by r12 (minutes) for the plant side and r16 (minutes) for the sanitary side

The intervention priorities are defined by the parameters r14, r20, r23, r24.

It goes back to normal operation if the temperature rises above r28+1.0 (°C).

Note: In the joint operating bracket, the boiler is temperature controlled by the plant water remote probe (if enabled). In particular, if the temperature detected by the remote probe is lower than the Hea setpoint, the boiler is switched on and then will go off when the temperature detected by the remote probe is higher than the Hea setpoint. The heat pump follows the activation logic described in paragraph 10.5.

If the remote plant water probe is not enabled, the boiler will be managed by the delivery probe of the heat pump.

10.9.4 OPERATION IN SUBSTITUTION

If the outdoor temperature drops below r08 use of the heat pump compressor will be inhibited.

- If the auxiliary system is composed of plant and/or DHW heaters, they are active in substitution of the compressor with defined times, r12 (minutes) for plant side and r16 (minutes) for sanitary side.

Whereas in the operation in substitution bracket, the integrations do not need to be enabled with r10 or r15 as the heaters need to operate in substitution (and not in integration) of the heat pump (therefore simply select the type of use with the parameter r24).

- If the auxiliary system is a boiler with autonomous circulator (r32 = 1 or 3).

The circulator of the heat pump is off, after P01 (default 30 seconds) the boiler is enabled.

NOTE: With water side antifreeze protection, the pump used is activated (or remains active) anyhow.

- If the auxiliary system in substitution is a boiler with autonomous temperature control (r32 = 0 or 2).

The boiler is enabled regardless of the temperature control of the heat pump.

- If the auxiliary system in substitution is a boiler without circulator (r32 = 0 or 2).

The circulator of the heat pump is on when the boiler is enabled.

The compressor switches back on if the temperature rises above r08+ r09 (°C) (r09=1.0 °C by default).

10.10 OPERATING BRACKETS - ACTIVATION OF INTEGRATION HEATERS (PLANT REMOTE WATER PROBE NOT ENABLED)

The possible configurations of the integration parameters are listed in tables 1,2,3 and 4 shown below, divided by operating brackets (the operating modes and possible values of the parameters are indicated in the "STATUS" boxes and in the parameters "rxx" so that a given order

of intervention of the integrations occurs in a certain operating mode of the unit; other statuses and values of the parameters can be selected instead and therefore they are provided in the same cell separated by the symbol "/").

N°	INTERVENTION ORDER(with setpoint not reached)	STATUS	OPERATION	r10	r15	r12	r16	r23	r24
1	1) Heat pump2) After r12 minutes,plant integration heater	HEAT/HEAT+SAN	HEAT	1	0/1/2	Set the minutes	/	0/2/5 1/3
2	1) Heat pump2) After r12 minutes,boiler	HEAT/HEAT+SAN	HEAT	0/1	0/1/2	Set the minutes	/	1/3/4/6	0/2
3	1) Heat pump2) After r12 minutes,plant integration heater3) After further r12 minutes,boiler	HEAT/HEAT+SAN	HEAT	1	0/1/2	Set the minutes	/	1/3	1/3
4	1) Heat pump2) After r12 minutes,boiler3) After further r12 minutes,plant integration heater	HEAT/HEAT+SAN	HEAT	1	0/1/2	Set the minutes	/	4/6	1/3
5	1) Heat pump2) After r16 minutes,plant integration heater	HEAT+SAN	DHW	0/1	1	/	Set the minutes	0/1/4 2/3
6	1) Heat pump2) After r16 minutes,boiler	HEAT+SAN/	DHW	0/1	0/1/2	/	Set the minutes	2/3/5/6	2/3
7	1) Heat pump2) After r16 minutes,plant integration heater3) After further r16 minutes,boiler	HEAT+SAN	DHW	0/1	1	/	Set the minutes	2/3	2/3
8	1) Heat pump2) After r16 minutes,boiler3) After further r16 minutes,DHW integration heater	HEAT+SAN	DHW	0/1	1	/	Set the minutes	5/6	2/3
9	1) Heat pump2) After r12 minutes,plant/DHW integration heater	HEAT/HEAT+SAN	HEAT/DHW	1	1	Set the minutes	Set the minutesi	0	3

TABLE 2. JOINT OPERATION, BRACKET 1

N°	INTERVENTION ORDER(with setpoint not reached)	STATUS OPERATION r10 r15 r12 r16 r23 r24
10	1) Heat pump2) After r12 minutes, boiler	HEAT /HEAT+SAN	HEAT/DHW 0/1 0/1/2			Set the minutes	Set the minutes	3/6 0
11	1) Heat pump2) After r12 minutes, plant/DHW integration heater3) After further r12 minutes, boiler	HEAT /HEAT+SAN	HEAT/DHW 1 1			Set the minutes	Set the minutes	3	3
12	1) Heat pump2) After r12 minutes, boiler3) After further r12 minutes, plant/DHW integration heater	HEAT /HEAT+SAN	HEAT/DHW 1 1			Set the minutes	Set the minutes	6	3

TABLE 3. JOINT OPERATION, BRACKET 2

N°	ORDINE INTERVENTO(with setpoint not reached)	STATUS OPERATION r10 r15 r12			r16 r23	r24
1	1) Boiler2) After r12 minutes,heat pump	HEAT /HEAT+SAN	HEAT	0/1	0/1/2	Set the min-utes	/	1/3/4/6	0/2
2	1) Boiler2) After r12 minutes,plant integration heater3) After further r12 minutes,heat pump	HEAT /HEAT+SAN	HEAT	1 0/1/2		Set the min-utes	/	1/3 1/3
3	1) Boiler2) After r12 minutes,heat pump3) After further r12 minutes,plant inte-gration heater	HEAT /HEAT+SAN	HEAT	1 0/1/2		Set the min-utes	/	4/6 1/3
4	1) Plant integration heater2) After r12 minutes,heat pump	HEAT /HEAT+SAN	HEAT	1 0/1/2		Set the min-utes	/	0/2/5	1/3
5	1) Boiler2) After r16 minutes,heat pump	HEAT+SAN	DHW	0/1	0/1/2	/	Set the min-utes	2/3/5/6	0/1
6	1) Boiler2) After r16 minutes,DHW integration heater3) After further r16 minutes,heat pump	HEAT+SAN	DHW	0/1	1	/	Set the min-utes	2/3 2/3
7	1) Boiler2) After r16 minutes,heat pump3) After further r16 minutes,DHW inte-gration heater	HEAT+SAN	DHW	0/1	1	/	Set the min-utes	5/6 2/3
8	1) DHW integration heater2) After r16 minutes,heat pump	HEAT+SAN	DHW	0/1	1	/	Set the min-utes	0/1/4	2/3
9	1) Boiler2) After r12 minutes,heat pump	HEAT /HEAT+SAN	HEAT/DHW	1 1		Set the min-utes	Set the min-utes	3/6 0
10	1) Boiler2) After r12 minutes,plant/DHW inte- gration heater3) After further r12 minutes,heat pump	HEAT /HEAT+SAN	HEAT/DHW	1 1		Set the min-utes	Set the min-utes	3	3
11	1) Boiler2) After r12 minutes,heat pump3) After further r12 minutes,plant/ DHW integration heater	HEAT /HEAT+SAN	HEAT / SANITARIO	1 1		Set the min-utes	Set the min-utes	6	3
12	1) Plant/DHW integration heater2) After r12 minutes,heat pump	HEAT /HEAT+SAN	HEAT/DHW	1 1		Set the min-utes	Set the min-utes	0	3

Table 5 shows the settings to be configured to enable the integrations in “summer and sanitary” mode (in this case the only activation that can be activated is the DHW integration heater and the division into operating brackets does not apply).

	TABLE 5. OPERATION IN COOL+SAN (DHW RUNNING)
N°	INTEGRATIONS INTERVENTION ORDER-With setpoint not reached after r16 minutes from the start-up of the compressor or with setpoint not reached with machine blocked by alarm.	STATUS	OPERATION	r10	r15	r12	r16	r23	r24
1	1) DHW integration heater	COOL+SAN	DHW	0/1	1	/	Set the minutes	0/1/2/3/4/5/6	2/3

Table 6 shows the behaviour of the plant and DHW integration heaters in all the operating modes of the unit.

	TABLE 6. INTEGRATION HEATERS OPERATION
N°	STATUS	OPERATION	PLANT INTEGRATION HEATER	DHW INTEGRATION HEATER
1	HEAT+SAN	HEAT	Works as indicated in TABLE 1,2,3 and 4.	In “HEAT+SAN”, by default sanitary temperature control has priority over that of the plant, therefore if required by the temperature control, the unit goes to “SANITARY” mode and the DHW integration heater acts as indicated in TABLES 1,2,3 and 4.
2	HEAT+SAN	DHW	Only if all 3 of the following conditions are met:-the output is configured for Plant integration heater;-r24=1/3;-plant water temperature remote probe present and configured;the plant integration heater is activated in the following situations:- r12 minutes after the start of its count activated in “HEAT” mode previously running (see line 1);- if its count is not already activated in the previous “HEAT” mode, r12 minutes after the temperature control demand.- In SANITARY mode, with remote probe not configured, the plant integration heater is deactivated or any of its counts are interrupted.- With “remote on-off” contact open, the Plant integration heater is deactivated.	Works as indicated in TABLES 1,2,3 and 4.
3	COOL+SAN	DHW	Cannot be activated	Works as indicated in TABLE 5.
4	COOL+SAN	COOL	Cannot be activated	Cannot be activated

10.10.1 AUXILIARY SYSTEMS OFFSET MANAGEMENT

Lastly you may establish that the boiler and/or integration heaters (according to the resources and selected priorities) have a setpoint in heating mode and in sanitary mode higher than that of the heat pump. This is achieved by setting an offset on the following setpoints:

• r29 = First setpoint temperature offset for boiler and plant heaters (G02);
• r30 = Second setpoint temperature offset for boiler and plant heater (G05);
• r31 = Temperature offset for boiler and DHW heaters (G03);

This way the heat pump stops at the setpoint (G02,G03,G05) and the temperature difference, according to the set outset, will be supplied by the boiler and/or heaters.

10.11 WARNINGS

If the double setpoint function is not active, one of the following warnings can be configured.

10.11.1 PLANT SEASON

A digital output can be configured indicating the operating season of the unit, plant side. The output is active in summer mode, while it is deactivated in OFF or heating mode. During DHW production and defrosting, the output maintains the setting of the source season.

I/O Resource (Parameter) Value Function
DO7 can be activated via H85 31	Plant season warning

10.11.2 ALARM

A live output can be configured signalling the presence of an alarm.

I/O Resource Parameter Value Function
DO7 can be activated via H85 47 Alarm warning

10.11.4 DEFROST

A digital output can be configured signalling defrosting in progress.

I/O Resource Parameter Value Function
DO7 can be activated via H85 21	Defrost in progress warning

10.12 DEFROST CYCLE

The defrost cycle is only active in heat pump mode and is used to prevent the formation of ice on the surface of the air/air coil. The formation of ice on the evaporator, which is quite frequent with very low outdoor temperatures, in addition to considerably downgrading the thermodynamic performance of the unit, also risks damaging the unit itself.

If the unit is switched off by remote control during defrosting, the heat pump finishes defrosting and then places itself in off mode via remote control.

10.13 COMPRESSOR CRANKCASE HEATER

The crankcase heater is activated if the compressor has been off for at least 30 minutes and if the discharge temperature is below a certain threshold of 20°C (with hysteresis of 2.0°C ). The crankcase heater is disabled when the compressor starts back up.

10.14 DOUBLE SET-POINT

This function introduces a second working set-point on the plant side, both in cooling and heating mode. The user terminal board allows a consent to be connected to switch from the first to the second set-point and configured at digital input ID9 with parameter H53 = 26. The valve, on the other hand, is connected in the terminal board to digital output DO7 and is configured via parameter H85.

Parameter	VALUE	Function
H53	26	Second set-point call
H85	25	3-way valve for radiant panels
H129	0 Function disabled (default)
	1	Function configured but not active
	2	Enabled only in cooling mode
	3	Enabled only in heating mode
	4	Enabled in cooling and heating mode
H138	0	DHW second setpoint function disabled (default)
	1	Enabled the second DHW set point in cooling mode
	2 Enabled the second DHW set point in heating mode
	3	Enabled the second DHW set point in cooling and heating mode

10.15 MINIMUM HZ FUNCTIONALITY

Configuring parameter L02=1 and L03≠0 reduces the nominal operating Hz of the compressor.

Parameter VALUE Function
L02	0 Function not active
	1 Enabling minimum Hz
L03	0 Function not active
	1 Function active only in cooling mode
	2 Function active only in heating mode
	3 Function active only in sanitary mode
	4 Function active in cooling and sanitary mode
	5 Function active in heating and sanitary mode
	6 Function active in cooling and heating mode
	7 Function always active

With the function active, the output and power of the unit are limited, for additional information see the installer user manual. Configuring a digital input ID9 with parameter H53=21, the function can be managed.

Parameter VALUE Function
H53	0 (default) Function disabled
	21	Open contact -> standard mode Closed contact -> mode Hz min/max

10.16 MAXIMUM HZ FUNCTIONALITY

Activating the function increases the power of the unit, please contact us for information.

10.17 FLOWMETER

It is possible to connect a ratiometric flowmeter to CN7 terminals of the controller respecting the table below:

Connector PIN 1 PIN 2	PIN 3
CN7	GND	Voltage input	+5V
Terminal block	X-22.1	X-22.2	Connect it directly to pin 3 of CN7 of the controller

Enable the parameter H22=45 (configuration ST11).

I/O Resource - Parameter	Value	Function
H22	45	Water flow

The flowmeter must have the following characteristics:

• Signal range 0.5 ÷ 3.5V (0l/min at 0.25V)
- 5Vdc power supply
- Power <50mW
- Inductive load > 10kΩ

Once the flow meter is enabled, set the following parameters:

Parameter	Value	Description
Ac09	2.0	Minimum flowmeter rate
Ac10	0.5	Flowmeter output at minimum flow
Ac11	40	Maximum flow meter
Ac12	3.5	Flowmeter outlet at the minimum flow rate

11. FUNCTIONS THAT CAN BE ACTIVATED WITH HI-T2 ACCESSORY (OPTIONAL)

This is a touch screen remote control for centralised management of a chiller/heat pump network. It includes humidity and temperature sensors for the thermo hygrometric analysis of the environment and for the management of the double set point for radiant floor heating systems that use a dehumidification system.

The intuitive interface simplifies the use of the controller; all the functions can be easily set through the use of an easy to understand synoptic. The Hi-T remote control allows you to manage the following functions:

• Remote management;
  • Management of a network, up to 7 heat pumps;
• Zone thermostat;
• Screed function;
  • Antilegionella disinfection;
  • Double set-point and humidity measurement;

• Dew point control;

• Climatic compensation;

• Booster circulator management;
• Management of single pump in a network;
• Alarm diagnostic system.

12. FUNCTIONS THAT CAN BE ACTIVATED WITH GI MODULE (OPTIONAL)

The Gi module is an optional kit which allows you to manage the following functions:

• Booster circulator management with the aid of a room thermostat (not supplied);
• Management of a plant side mixer valve both in heating and cooling mode;
• Solar – thermal integration management.

12.1 I/O RESOURCES OF THE CONTROLLER

The following is the list of I/O (inputs and outputs) that can be set to activate the functions of the controller.

Resource Parameter	Terminal block	XGI	Factory configuration		Description
			Default value Function
ST 5E H27 1.1 / 1.2	0 Not set				Analogue input configurable with an NTC-10KΩ probe at 25°C β 3435
ST 6E H28 2.1 / 2.2	0 Not set				Analogue input configurable with an NTC-10KΩ probe at 25°C β 3435
ST 7E H29 3.1 / 3.2	0 Not set				Analogue input configurable with an NTC-10KΩ probe at 25°C β 3435
ID 9E H63 4.1 / 4.2	0 Not set Voltage-free digital input
DO 1E H86		5.1 (phase)6.2(neutral)	0 Not set		230Vac, 50Hz, 2A (AC1) single-phase live output.
DO 2E H87		5.2 (phase)6.2(neutral)	0 Not set		230Vac, 50Hz, 2A (AC1) single-phase live output.
DO 3E H88		7.1 (phase)7.2(neutral)	0 Not set		230Vac, 50Hz, 2A (AC1) single-phase live output.
DO 4E H89		8.1 (phase)8.2(neutral)	0 Not set		230Vac, 50Hz, 2A (AC1) single-phase live output.
DO 5E H90		9.1 (phase)9.2(neutral)	0 Not set		230Vac, 50Hz, 2A (AC1) single-phase live output.

GI terminal block

12.2 MANAGEMENTOFSECONDARYCIRCULATOR/BOOSTERPUMP(WITHROOMTHERMOSTAT)

It allows the management of a secondary or booster circulator to serve the plant.

A room thermostat (N.C.) must be appropriately configured.

- Thermostat closed contact -> The secondary circulator is activated;

- Thermostat open contact -> The secondary circulator is off with a delay given by P02 (post-pumping).

I/O Resource - Parameter	Value	Function	XGI terminals
ID9E can be activated via H63	19	Room thermostat	4.1 / 4.2
DO5E can be activated via H90	43	Secondary circulator	9.1 (phase) 9.2(neutral)

With the Heat pump in Off, the booster circulator will be off regardless of the thermostat call.

If the machine is not equipped with either a remote system probe or a secondary circulator, the room thermostat thermoregulation is as follow:

ROOM CALL	Compressor thermoregulations
	b30=0	b31=1
Activated	Activated	Activated
Deactivated (satisfied environment)

12.3 MIXER VALVE MANAGEMENT

The mixer valve is regulated by means of specific PID which strives to maintain the delivery temperature of the radiant panel at the set value.

The setpoint setting can be found in the 'Set' Menu:

rCoo = Mixer flow temperature setpoint in cooling mode = 15°C (default)

rHea = Mixer flow temperature setpoint in heating mode = 30°C (default

The resources and the parameters to be setting are the following:

I/O resource - Parameter Description Value Function XGI terminals
ST 5E can be activated via H27	Analogue input 44 Mixer probe 1.1 / 1.2
ID9E can be activated via H63	Digital input 19 Room thermostat 4.1 / 4.2
DO1E can be activated via H86	Voltage output 34 Valve open command			5.1 (phase) / 6.2(neutral)
DO2E can be activated via H87	Voltage output 35 Valve close command 5.2 (phase)
DO3E can be activated vi H88	Voltage output 33
i01 Valve opening time		Recover the value from the technical data supplied installed
i02 Interval between two interruptions 30 seconds 1
i03 PID proportional band 2 °C 2
i04	PID integral time	300 seconds 3
i05	PID derivative time	0 4
i06	Mixer management only active in heating mode	1
	Mixer management only active in cooling mode	2
	Mixer management only active in heating and cooling mode	3

¹ Recommended value. Time interval between one correction and the next.
² Recommended value. Intervention area defined by the difference between the setpoint for the mixer flow and the temperature measured by mixing flow probe.
³ Recommended value. Time taken by the mixing valve to switch from open to closed and vice versa, when the difference between setpoint set for the flow of the mixing valve and the value read by the mixing probe is greater than or equal to proportional band. The more larger this value, the slower the change in approach to the setpoint set for the mixing valve flow.
⁴ Derivate component of regulation; use only if you have a good knowledge of regulator logic.

12.3.1 Determination of setpoint

The setpoint on which to perform regulation is given by rCOO or rHEA respectively in cooling and heating mode. If dynamic compensation of the setpoint is enabled (b08=1), then the setpoint will be corrected the same way as the heat pump/chiller.

The maximum and minimum value reached by the compensation are not controlled. Therefore the parameters must be configured so that the setpoints are not brought to unwanted values outside of the allowed work ranges.

12.3.2 Mixer pump

The mixing pump (DO3E) switches on when there is a call from the digital input ambient thermostat (ID9E) and switches off with a delay of P02 from the instant the thermostat call ceases.

12.4 SOLAR INTEGRATION MANAGEMENT

To enable the function, set S01=1.

Parameter	Description	Value	Function	XGI terminals
ST6E can be activated via H28	Analogue input	39	Solar storage tank probe	2.1 / 2.2
ST7E can be activated via H29	Analogue input	38	Solar collector probe	2.1 / 2.2
DO3E can be activated via H88	Voltage output	30	Solar circulator	7.1 (phase) 7.2(neutral)
DO4E can be activated via H89	Voltage output	45	Solar exhaust valve	8.1 (phase) 8.2(neutral)

12.4.1 Activation of solar circulator

Solar management is also active with the unit off.

The solar circulator is active in both of the following conditions are met:

• The temperature of the solar collector is higher than that defined by parameter S13;
• The temperature difference between the solar collector and that of the solar storage tank is higher than the parameter S02 (default 6°C).

12.4.2 Collector protection

If the temperature of the collector exceeds parameter S04 (default 110°C ), the solar circulator is periodically on intermittently with the times set in:

• S05 = time ON (default 15 seconds);

- S06 = time OFF (default 15 seconds).

As hysteresis to exit the protection condition use S08. This protection is guaranteed even with the machine Off.

12.4.3 Collector overtemperature alarm

If the collector probe exceeds the value of parameter S12, there is an alarm condition E10 which blocks the solar circulator. The hysteresis to return from the alarm condition is given by parameter S08. If an alarm is triggered, operation of the heat pump is guaranteed.

If the temperature of the DHW storage tank exceeds the parameter S10, the alarm E50 is triggered. The hysteresis to return from the alarm condition is given by parameter S11. If an alarm is triggered, operation of the heat pump is guaranteed.

12.4.5 Solar exhaust valve

If alarms E10 and E50 are triggered simultaneously, the solar exhaust valve will be activated.

It is recommended to connect the output of terminals 8.1 (phase) - 8.2 (neutral) to a timed relay to manage the flow of the exhaust valve.

12.4.6 Dissipation of solar tank heat

The solar circulator runs to dissipate excess heat in the storage tank by exploiting the solar collector if both of the following conditions are met: -The temperature of the DHW storage tank is higher than parameter S15; -The temperature of the solar collector is lower than 35° C (parameter S13 – parameter S14).

The solar collector is off when at least one of the following conditions is met:

-The temperature of the DHW storage tank is lower than parameter S15. -The temperature of the collector exceeds the parameter S13 (default 40°C ).

12.4.7 Antifreeze

Function active if the parameter S01 = 1. If the temperature of the solar collector is lower than parameter S07 (default 5°C), the solar circulator is activated in antifreeze mode. This protection is only enabled with the machine Off. The function is inhibited if the temperature of the DHW storage tank is lower than the value defined in parameter S16. Setting the parameter S01 = 2, the antifreeze function is never active (for example because the solar plant is supplied with glycol). Be careful as enabling this function could damage the entire system.

Note:

• Solar integration is NOT managed if the controller of the unit is OFF.
• The remote digital input OFF has no effect on solar management.

13. TABLES OF PERMITTED SETUPS FOR USER AND INSTALLER

CAUTION

All the operations with INSTALLER INSTALLER visibility must be carried out by QUALIFIED PERSONNEL.

Not all of the configurations can be activated and/or modified at the same time.

Values other than the default values can jeopardise proper operation of the unit. If in doubt on which value to set, contact our headquarters.

The company excludes any contractual and extra contractual liability for damage caused to persons, animals or objects, by incorrect installation, setting and maintenance, improper use of the equipment, and the partial or superficial reading of the information contained in this manual.

We shall not be held liable for any breakage or malfunctioning caused by third parties changing the default parameters if not expressly authorised to do so. The following is the table of the allowed configurations; not all of them can be selected simultaneously. Values other than the default values can jeopardise proper operation of the unit. If in doubt on which value to set, contact our headquarters.

Parameter	Description Unit Default Range Visibility					Allowed configurations:
						Description Notes
Coo First cooling setpoint °C 7.0 25÷Coo2 U
Hea First heating setpoint °C 45.0 Hea2÷H01 U
San Sanitary setpoint °C 48.0 25÷H01 U							If sanitary function active. See par. 10.2
Coo2	Second cooling setpoint	°C	18.0	Coo÷25	U
Hea2	Second heating setpoint	°C	35.0	25÷Hea	U
*rCOO	Mixing valve summer setpoint	°C	15.0	-50÷80	U		Config if Gi accessory present
*rHEA	Mixing valve winter setpoint	°C	30.0	-50÷80	U		Config if Gi accessory present
San2	Second sanitary setpoint	°C	45.0	0÷80	I
H01	Maximum setpoint in heating	°C	60.0	-50÷80	I
H04	Minimum setpoint in cooling	°C	5.0	-50÷80	I
H10	Sanitary function enabling	/	0	0÷6	I	See par. 10.2
H17	Input configuration Analogue ST6	/0	0÷49	I		0 = Input disabled6 = Domestic hot water probe
H18	Input configuration Analogue ST7	/0	0÷49	I		0 = Input disabled41 = Remote water temperature probe
H22	0-10vDC live input configura-tion Analogue ST11	/0	0÷49	I		0 = Input disabled40 = Plant setpoint decalibration
*H27	Input configuration Analogue ST5E	/0	0÷49	I		0 = Input disabled44 = Mixer probe	Only if Gi accessory present
*H28	Input configuration Analogue ST6E	/0	0÷49	I		0 = Input disabled39 = Solar storage tank probe	Only if Gi accessory present
*H29	Input configuration Analogue ST7E	/0	0÷49	I		0 = Input disabled38 = Solar collector probe	Only if Gi accessory present
*H30	Input configuration Analogue ST8E	/0	0÷49	I			Only if GI accessory is present
H46	Input configuration Digital ID2	/0	0÷30	I		0 = Input disabled3 = Summer/winter mode change
H47	Input configuration Digital ID3	/2	0÷30	I		0 = Input disabled2 = Remote On / Off
H53	Input configuration Digital ID9	/0	0÷30	I		0 = Input disabled21= Hz min/max remote25= Silenced version26 = Double set-point call28 = DHW thermostat call
*H60	Input configuration Digital ID6E	/0	0÷30	I			Only if GI accessory is present
*H61	Input configuration Digital ID7E	/0	0÷30	I			Only if GI accessory is present
*H62	Input configuration Digital ID8E	/0	0÷30	I			Only if GI accessory is present
*H63	Input configuration Digital ID9E	/0	0÷30	I		0 = Input disabled19 = room thermostat	Only if GI accessory present
H75	Digital input polarity	/	0	0÷255	I	0 = Digital inputs N.A.1 = ID1 polarity inverted2 = ID2 polarity inverted4 = ID3 polarity inverted8 = ID4 polarity inverted16 = ID5 polarity inverted32 = ID6 polarity inverted64 = ID7 polarity inverted128 = ID8 polarity inverted	To reverse more than one polarity, do the sum of those you wish to reverse.
H76	Digital input polarity	/	0	0÷255	I	0 = Digital inputs N.A.1 = ID9 polarity inverted2 = ID10 polarity inverted4 = ID1E1 polarity inverted8 = ID2E1 polarity inverted16 = ID3E1 polarity inverted32 = ID4E1 polarity inverted64 = ID5E1 polarity inverted128 = ID6E1 polarity inverted	To reverse more than one polarity, do the sum of those you wish to reverse
H77	Digital input polarity	/	0	0÷255	I	0 = Digital input N.A.1 = ID7E1 polarity inverted2 = ID8E1 polarity inverted4 = ID9E1 polarity inverted8 = ID10E1 polarity inverted16 = ID1E2 polarity inverted32 = ID2E2 polarity inverted64 = ID3E2 polarity inverted128 = ID4E2 polarity inverted	To reverse more than one polarity, do the sum of those you wish to reverse

Parameter	Description Unit Default Range Visibility				Allowed configurations:
					Description Notes
H81	Output configurationIn DO3 power	/22 0÷48 I			0 = Output disabled22 = Plant integration heater26 = DHW integration heater
H82	Voltage output configurationDO4	/14 0÷48 I			0 = Disabled output= Exchanger resistor
H83	Voltage output configurationDO5	/28 0÷48 I
H84	Output configurationIn DO6 power	/6 0÷48 I			0 = Output disabled6 = DHW valve
H85	Output configurationIn DO7 power	/25 0÷48 I			0 = Output disabled25 = Double set-point valve29 = Boiler enabling24 = Alarm warning31 = Summer/winter operatingmode warning21 = Defrost warning47 = Machine block warning
*H86	Output configurationIn voltage DO1E	/0 0÷48 I			0= Output disabled34= Valve open command	Only if Gi accessory present
*H87	Output configurationIn voltage DO2E	/0 0÷48 I			0= Output disabled35= Valve close command	Only if Gi accessory present
*H88	Output configurationIn voltage DO3E	/0 0÷48 I			0 = Output disabled30 = Solar circulator	Only if Gi accessory present
*H89	Output configurationIn voltage DO4E	/0 0÷48 I			0 = Output disabled45 = Solar exhaust valve	Only if Gi accessory present
*H90	Output configurationIn voltage DO5E	/0 0÷48 I			0 = Output disabled43 = Secondary circulator	Only if Gi accessory present
H100 Digital output polarity / 2 0÷255 I					0 = Digital input N.A.1 = DO1 polarity inverted2 = DO2 polarity inverted4 = DO3 polarity inverted8 = DO4 polarity inverted16 = DO5 polarity inverted32 = DO6 polarity inverted64 = DO7 polarity inverted128 = DOE1 polarity inverted	To reverse more than one polarity, do the sum of those you wish to reverse
H101 Digital output polarity / 0 0÷255 I					0 = Digital input N.A.1 = DO2E polarity inverted2 = DO3E polarity inverted4 = DO4E polarity inverted8 = DO5E polarity inverted16 = DO6E polarity inverted32 = DO7E polarity inverted	To reverse more than one polarity, do the sum of those you wish to reverse
H124 Serial baud rate baud	1 0÷3				0=4800 baud1=9600 baud2=19200 baud3=38400 baud
H125 Serial parity / 2 0÷3					0=none parity, 2 stop bits1=odd parity, 1 stop bit2—even parity, 1 stop bit3=none parity, 1stop bit
H126 Serial address / 1 0÷120 I					In the cascade configuration, assign a different address to each controller.
H129 Enable second setpoint / 0 0÷4		I
H130	Heating with DHW storage tank	/0 0÷1	I		0 = Normal operation1 = In Heating, machine always turned towards DHW
H136	OFF state deactivation with ID presence ON/OFF remote	/0 0÷1	I		0 = Normal operation1 = If H47=2, the machine cannot be in the OFF state (at most it can be in plant standby E00)
H138 Second DHW setpoint			0÷4
A08	Antifreeze alarm activation setting	°C	3 -127÷127 I		Different values can jeopardise proper operation of the unit
b04	Switching time valve according to setpoint	sec	30 0÷600 I		Different values can jeopardise proper operation of the unit
b05	Compressor cut-off delta	°C	0.2	0÷255 I
b08	Enable dynamic setting	/	0	0÷1 I
b09	Maximum cooling offset	°C	3.0	-50.0÷80.0 I
b10	Maximum heating offset	°C	-3.0	-50.0÷80.0 I
b11	Cooling outdoor temperature setting	°C	25 -127÷127 I
b12	Heating outdoor temperature setting	°C	15 -127÷127 I

Parameter	Description Unit Default Range Visibility					Allowed configurations:
						Description Notes
b13	Cooling temperature delta	°C	-10.0	-50.0÷80.0	I
b14	Heating temperature delta	°C	10.0	-50.0÷80.0	I
b15	0-10V analogue input setting decalibration band	°C 5.0 0.0÷10.0 I
b20	0-10V/ratiometric input enabling	/ 0 0÷1				0-10V input
						Ratiometric input
b22	Plant probe temperature control cut-off hysteresis	°C 5.0 0.0÷25.5 I
b24	Maximum compressor cut-on ΔT	°C 8.0 0.0÷25.5 I
b25	Compressor cut-on ΔT	°C	2.0	0.0÷25.5	I
b30	Enabling compressor switch-off with room call satisfied	- 0 0÷1
P01	Pump ON compressor ON delay	sec	30	0÷255	I
P02	Pump OFF compressor OFF delay	min	2.0 0÷25.5	I
P03	Pump operating mode	/	0	0÷1	I		The pump is always on if the anti-freeze heaters are active.
P04	Pump setting in antifreeze	°C	5	-15÷15	I
P05	Pump hysteresis in antifreeze	°C	2.0	0.0÷15.0	I
P06	Set ΔT water pump in heating mode	°C 4°C	0÷255	I
P07	Maximum speed pump	%	100%	0÷600	I
P09	Modulating pump inlet/outlet water delta T setting	°C 2.0 0÷15		I
P16	Interval between 2 periodical activations of the pump	min	0 0÷600	I
P17	Operating time of the pump in periodical mode	sec	0 0÷255	I
r02	Antifreeze heaters setpoint in heating mode	°C 4 3÷6		I			Only change in the presence of glycol water. Contact our headquarters.
r03	Antifreeze heaters setpoint in cooling mode	°C 4 3÷6		I			Only change in the presence of glycol water. Contact our headquarters.
r06	Antifreeze heaters delta	°C	2.0	0.0÷25.5	I		Only change in the presence of glycol water. Contact our headquarters.
r08	Operation in substitution upper limit	°C	-20	-20÷50	I	Respect r22 ≥ r28 ≥ r08	Do not modify this value, as it could jeopardise operation of the unit
r10	Plant integration enabling	/	0	0÷1	I	0 = Function disabled1 = Function enabled
r11	Plant integration heater delta	°C	0.5	0,0÷25.5	I
r12	Plant/heat pump integration heater activation delay	min	10	0÷255	I
r13	Enabling switch-off auxiliaries in delta r11	/ 0 0÷3		I		0 = Function disabled1 = Enabled for system resistors2 = Enabled for boiler3 = Enabled for resistors and boiler
r14	Exclusive heaters operation	/	0	0÷1	I	0 = Heaters can be activated simultaneously1 = Heaters can be activated exclusively
r15	DHW integration enabling	/	0	0÷2	I	0 = Function disabled1 = Function enabled
r16	DHW/heat pump integration heater activation delay	min	15	0÷255	I
r19	Duration of tray heater activation since last defrost	min	10	0÷255	I	0= heater activation regardless of defrost.
r20	Heaters use priority	/	1	0÷1	I	0 = Plant side priority1 = Sanitary side priority	This parameter only needs to be set if r14=1
r21	Enables plant side mitigation with heaters in defrost mode	/ 0 0÷1		I		0= Function disabled1= Function enabled

Parameter	Description Unit Default Range Visibility				Allowed configurations:
					Description Notes
r22	Joint operation bracket I upper limit	°C 7 -16÷50 I Respect r22 ≥ r28 ≥ r08				Do not modify this value, as it could jeopardise operation of the unit
r23 Type of use of boiler / 6 0÷6 l
r24	Type of use of integration heaters	/	3 0÷3 l
r25	Disinfection setpoint	°C	80	0÷100	I
r26	Disinfection duration	min	12	0÷255	I
r27	Heat pump setpoint in disinfection	°C 55.0	500÷800	I
r28	Joint operation bracket II upper limit	°C -7	-16÷50 I Respect r22 ≥ r28 ≥ r08			Do not modify this value, as it could jeopardise operation of the unit
r29	First setpoint temperature offset for boiler and plant heaters (HEA)	°C 0 0÷100		I
r30	Second setpoint temperature offset for boiler and plant heater (HEA2)	°C 0 0÷100		I
r31	Temperature offset for boiler and DHW heaters (SAN)	°C 0 0÷100		I
r32	Boiler supply	/	1	0÷3	I
r33	Pump management with heaters active	/	3 0÷3 l
r34	Disinfection day	/	0	0÷7	U	0 =Disabled1 =Monday2 =Tuesday3 =Wednesday4 =Thursday5 =Friday6 =Saturday7 = Sunday
r35	Disinfection time (minute of the day)	/	0 0÷1439	U
r36	Anti-loop time on sanitary operation	min	1 0÷255	I		Control to prevent the machine remain in sanitary production indefinitely indefinitely because does not reach the set point. Control active if parameter R36 is different from 0. In this case, the time of r36 is counted since the compressor started to work in the DHW mode. If the production of the DHW is not finished within r36 minutes, then you exit forced out of sanitary production.
r37	Boiler operation in cooling + DHW mode	/	1 0÷2 l			0 = Boiler not used1 = Boiler used in integration2 = Boiler does DHW and PDC does plant.
b21	Switching time water reversing valve system	sec	0 0÷600	I
d04	Defrost output pressure	bar	24.0	-500÷800	I
d08	Minimum time between defrost and next	min	35	0÷255	I
L02	User enablement for min./max. Hz function	/	0 0÷1 l
L03	Active min./max. Hz	/	0	0÷7	I
s01	Solar thermal enabling	/	0	0÷2	I
s02	Solar ΔT	°C	0	0÷25.5	I
s03	Solar hysteresis	°C	0	0÷25.5	I
s04	Maximum solar temperature	°C	0	0÷255	I
s05	Pump on time in maximum solar temperature	sec	0 0÷255	I
s06	Pump off time in max. solar temp	sec	0 0÷255	I
s07	Solar antifreeze set	°C	0	-127÷127	I
s08	Solar antifreeze hysteresis	°C	0	0÷25.5	I
s09	Constant for calculating solar power output	/	0 0÷999	I
s10	Maximum solar DHW storage temperature threshold	°C 0 0÷255 l
s11 Solar sanitary hysteresis °C 0 0÷25.5 l
s12	Solar collector overfill alarm threshold	°C 0 0÷255 l
s13	Minimum temperature threshold collector for activation solar	°C 0 0÷255 l
s14	Hysteresis for sanitary cooling	°C	0	0÷25.5	I
s15 Sanitary cooling threshold °C 0 0÷255 l
s16	Minimum temperature threshold collector antifreeze storage	°C 0 0÷255 l
L02	User enablement for min./max. Hz function	/	0 0÷1	I
L03	Active min./max. Hz	/	0	0÷7	I
*i01	Valve opening time	sec	0	0÷600	I
*i02	Interval between two corrections	sec	0 0÷600 l
*i03	PID proportional band		0	0÷80.0	I
*i04	PID integral time	sec	0	0÷2000	I
*i05	PID derivative time	sec	0	0÷25.5	I
*i06	Radiant panel configuration	/	0	0÷3	I
Ac09	Flow-meter minimum water flow rate	l/min	0.0	0÷100 l
Ac10	Flowmeter outlet at the minimum flow rate	Volt	0.0	0÷100 l
Ac11	Maximum flow rate of the flowmeter	l/min	0.0	0÷800 l
Ac12	Flow meter outlet at the maximum flow rate	Volt	0.0	0÷100	I	See par. 10.17

(*) If Gi module is present

14. ALARMS

By placing the controller in OFF mode, the alarms reset and the counts of the relative hour interventions are also reset. If the alarms are still triggered when switching the unit back on, contact technical assistance. The values indicated below could be subject to updates. If you have any doubts, contact our headquarters.

14.1 [E006] FLOW SWITCH

The water side flow switch is already installed inside the unit and MUST NOT be tampered with or bypassed in any way. The flow switch is bypassed for 10 seconds after the unit is switched on. When the bypass time has elapsed, you must evaluate the status of the digital input, if active, the flow is considered present.

If the flow is found to be missing for 5 seconds, the alarm is triggered and the circulator switches on for 120 seconds. If the alarm triggers more than 3 times an hour, it must be reset manually.

The alarm does not trigger in the following conditions:

• During domestic hot water production;
• During the plant venting cycle function.

14.2 [E018] HIGH-TEMPERATURE

If the water delivery probe detects a value higher than 65° C for longer than 50 seconds, the alarm is active. It deactivates when the temperature returns below 62° C.

14.3 [E020] INVERTER TRASDUCTORS

For compressor enabled for more than 150 seconds, the suction pressure probe detect a pressure higher than the condensation pressure probe, the alarm displayed is E020. The alarm is not resettable (it is necessary to cut the power supply to eliminate the alarm). This alarm is not in defrosting mode.

14.4 [E005] ANTIFREEZE

If the outlet water probe has a value lower than A08 (3°C), the alarm is active. It deactivates if the temperature recorded by the probe is higher than +6°C. The alarm is bypassed for 120 seconds from switch on in heating mode.

14.5 [E611÷E681] PROBE ALARMS

The alarm is triggered if any connected or enabled probe is short-circuited or interrupted.

The alarm also triggers if the upper limit (100°C) or the lower limit (-50°C) of the probes is exceeded. A probe figured as sanitary probe will not trigger any alarms if domestic hot water is not enabled.

NOTE:

If the pressure switch on the machine detects a pressure exceeding 42.8 bar the driver and the compressor are powered off and probe error E641 is displayed (Compressor discharge probe fault).

The alarm is cleared when the pressure drops below 34 bar.

14.6 [E801] TIMEOUT INVERTER

When the machine's controller does not communicate with the driver board of the compressor, a timeout alarm is triggered to avoid losing control of the system.

14.7 [E851 ÷ E971] INVERTER

The inverter has its own list of alarms.

14.8 [E00] REMOTE ON/OFF (WARNING)

If the unit is controlled by a remote digital input. See par. 10.4.1

14.9 [E001] HIGH-PRESSURE

If the pressure transducer on the unit detects a pressure higher than 41.5 bar the alarm is triggered.

In this case the compressor is blocked immediately. The alarm is reset when the pressure drops below 32.5 bar. If the alarm triggers more than 3 times an hour, it must be reset manually.

14.10 [E002] LOW-PRESSURE

In chiller mode, if the pressure transducer on the unit detects a pressure lower than 3.5 bar, the alarm is triggered.

In heat pump mode, if the pressure transducer on the unit detects a pressure lower than 1.3 bar, the alarm is triggered.

The alarm is reset when the pressure rises 2.0 bar above the triggering threshold.

A bypass time of 60 seconds is counted every time the compressor is activated.

When the alarm is triggered, it blocks the compressors of the circuit.

The alarm is reset manually if it triggers 3 times an hour.

14.11 [E008] DRIVER LIMITATION

If the compressor does not reach the speed at the intended ramp value within 30 minutes, the alarm is triggered and the compressor switches off for safety purposes.

The alarm is reset manually if it triggers 3 times an hour.

14.12 [E041] 4-WAY VALVE

Manually reset alarm, it identifies malfunctioning of the 4-way reversing valve.

The alarm does not trigger for a bypass time of approximately 180 seconds from start-up of the compressor.

• In heating and sanitary mode, the alarm is triggered when, the bypass time having elapsed, the water delivery temperature is lower than the water return temperature of the heat pump - 1°C.
• In cooling mode, the alarm is triggered when, the bypass time having elapsed, the water delivery temperature is higher than the water return temperature of the heat pump + 1°C.

14.13 POWER FAILURE

When restored:

• the instrument goes back to the condition it was in prior to the power failure
• if a defrost cycle is in progress, it is cancelled
• all of the timers in progress are cancelled and reinitialized

14.14 UTILITIES BLOCK ALARM TABLE

Code DESCRIPTION Block
E00 Remote off Machine
E001 High pressure alarm Machine
E002 Low pressure alarm Machine
E005 Antifreeze alarm Machine
E006	Flow alarm Machine
E008	Compressor driver limitation alarm	Machine
E009	Discharge high temperature alarm	Machine
E010	Solar collector high temperature alarm	Solar pump
E018	Cooling high temperature alarm	Machine
E020	Inverted trasductors pressure alarm	Machine
E041	Inconsistent temperatures alarm	Macchina
E050	DHW storage tank high temperature alarm	Machine/sanitary
E101	Communication timeout with Slave 1	Machine
E611	Water inlet probe failure	Machine
E621	Water outlet probe failure	Machine
E631	Compressor intake probe failure	Machine
E641	Compressor discharge probe fault / high pressure switch trip	Machine
E651 Outdoor air probe failure Machine
*E652 Mixer probe failure Machine
E661 DHW probe failure Machine
*E662 Solar storage tank probe failure Machine
E671 Plant remote probe failure Machine
*E672 Solar collector probe failure Machine
E691	Low pressure transducer failure	Machine
E701 High pressure probe failure	Machine
E711	0-10Vdc live input failure Machine
E801	Pressure inverter timeout	Compressor
E851	Inverter Hardware problem	Compressor
E861	Motor current too high Compressor
E871	Heatsink over-heat protection	Compressor
E881	Supply voltage out of limits (DC Bus Error)	Compressor
E891	Driving protection-output phase loss	Compressor
E901	Compressor driver and model mismatch	Compressor
E911	Overload protection	Compressor
E921	PFC_POE over current	Compressor
E931	Comunication error with main controller	Compressor
E941	PFC converter fault	Compressor
E951	Heatsink and/or ambient temperature sensor error	Compressor
E961	Abnormal condition	Compressor
E971 EEPROM not initialize	Compressor

(*) If Gi module present

15. MODBUS VARIABLES

The controller is configured as follows by default:

BAUD RATE	9600
PARITY	EVEN
DATA BIT	8
STOP BIT	1
DEVICE ID	1

To configure the Modbus communication according to your requirements, you must modify the following logs:

H124 : BAUD RATE
0	4800
1	9600
2	19200
3	38400

H125 : PARITY, STOP BIT
0	NONE, 2 bit
1	ODD, 1 bit
2	EVEN, 1 bit
3	NONE, 1 bit
H126 : DEVICE ID	1 ÷ 200

Modbus comands:

READING	HOLDING REGISTER
WRITING	6-16

Register	Format	Bit	R/W	Range	Name	Description	Note
1 INT - R -					Firmware information	Firmware versione
2 INT - R - Firmware release
3	BYTE (H) - R - Firmware sub-release
	BYTE (L) - R - Firmware creation day
4	BYTE (H) - R -				Firmware creation month
	BYTE (L) - R -				Firmware creation year
80÷97	ASCII	-	R	-	Serial number	Registration number
444	INT	-	R	0÷800	Water flow rate
1135	INT	-	R/W	1÷200	Serial address	Modbus serial ID
200	INT	-R -			Machine settings	(0) Stand by	Reading values of the machine status
		-R -				(1) Cooling
		-R -				(2) Heating
		-R -				(4) Only sanitary mode 1
		-R -				(5) Cooling + Sanitary 1
		-R -				(6) Cooling + Sanitary 1
7201	BIT MASK	0	R/W	-		Enablement of writing the machine status remotely	Necessary for the operation of the reg. 7200.
7200	INT	-	W -			(0) Stand by	The writing values that are not allowed at this address can lead to unexpected operations, so keep only those values that are allowed in writing.
		-	W -			(1) Cooling
		-	W -			(2) Heating
		-	W -			(4) Only sanitary 1
		-	W -			(5) Cooling + Sanitary 1
		-	W -			(6) Heating + Sanitary 1
7201	BIT MASK	1	R/W	-	Setpoint	Enablement of writing the machine status remotely	Necessary for the operation of the reg. 7203/7208.
7203	°C/10	-	R/W	5.0÷23.0		Cooling
7204	°C/10	-	R/W	25.0÷55.0-		Heating
7205	°C/10	-	R/W	25.0÷55.0		Sanitary
7206	°C/10	-	R/W	5.0÷23.0		Second cooling
7207	°C/10	-	R/W	25.0÷55.0		Second heating
7208	°C/10	-	R/W	0.0÷80.0		DHW preparer
7228	°C/10	-	R/W	-		Second sanitary
242	°C/10	-	R	-		Current thermoregulation setpoint
247	°C/10	-R -				Current reference temperature for thermoregulation
7201	BIT MASK	2	R/W	-	Second setpoint	Enabling the switching to the second setpoint	Necessary for the operation of bit 0 of reg. 7202.
7202	BIT MASK	0	W	-		0=primary setpoints, 1=secondary setpoint	Writing value
7217	BIT MASK	0	R	-		0=primary setpoints, 1=secondary setpoint	Reading value
7201	BIT MASK	3	R/W	-	Room temperature call	Enablement of remote room call writing	Necessary for the operation of bit 1 of reg. 7202.
7202	BIT MASK	1	R/W	-		Forced room temperature call remotely
7201	BIT MASK	4	R/W	-	Sanitary call	Enablement of remote sanitary call writing	Necessary for the operation of bit 1 of reg. 7202.
7202	BIT MASK	2	R/W	-		Forced remote sanitary mode call
7201	BIT MASK	5	R/W	-	Anti-Legionella 2	Enablement of anti-legionella cycle remotely	Necessary for the operation of bit 3 of reg. 7202.
7202	BIT MASK	3	R/W	-		Remote anti-legionella cycle request activation	The bit must be 1 for the entire cycle period.
7216 BIT	MASK	5	R	-		Anti-legionella cycle in progress
		6				Anti-legionella cycle failed or stopped	It remains at 1 until the next cycle, or it resets itself when the board is turned off.
7202	BIT MASK	5	R/W	-	Plant air-vent	Forced plant air-vent	Only if the machine is in Stand By (0).
7202 BIT	MASK 6 R/W -	Santary disablig				Sanitary call prohibition (without exiting from the actual mode + SAN function)	Active only if the setting of bit 3 is 7201 (when the room temp. call is also managed remotely).
7202 BIT	MASK 7 R/W -				Defrosting	Forced defrosting	Only if the machine is in heating (2-6).
7214 BIT	MASK	13	R	-		Defrosting on call
		14 Defrosting in progress
305 ora -	R -				Compressor 2	Compressor 1
307 ora -	R -
309	ora	-	R	-	Operating hours Compressor 1 circuit 2	Compressor 3
313 ora -	R -
315 ora -	R -				Compressor 2 circuit 2
317 ora -	R -				Compressor 3 circuit 2
253 °C/10	-	R -			Temperature transducer	Evaporation
254	°C/10	-	R	-		Condensation
626	°C/10	-	R	-		Evporation circuit 2
627	°C/10	-	R	-		Condensation circuit2
400 °C/10	-	R -			Temperature 3	Water inlet
401	°C/10	-	R	-		Water outlet
402 °C/10	-					External for climatic curve
405	°C/10	-	R	-		DHW
422	°C/10	-	R	-		Compressor inflation
428	°C/10	-	R	-		Outdoor
433	°C/10	-	R	-		Compressor discharge 1
434	°C/10	-	R	-		Compressor discharge 2
435	°C/10	-	R	-		Compressor discharge 3
437	°C/10	-	R	-		Solar collector
438	°C/10	-	R	-		Solar accumulation
440	°C/10	-	R	-		Plant remote
443	°C/10	-	R	-		Radiant panels mixing delivery
447	°C/10	-	R	-		DHW preparer recirculation
20422	°C/10	-	R	-		Compressors inhalation (circuit 2)
20433	°C/10	-	R	-		Compressor 1 discharge (circuit 2)
20434	°C/10	-	R	-		Compressor 2 discharge (circuit 2)
20435	°C/10	-	R	-		Compressor 3 discharge (circuit 2)
406	bar/100	-	R	-	Pressions 3	High pressure
414	bar/100	-	R	-		Low pressure
20406	bar/100	-	R	-		Circuit 2 high pressure
20414	bar/100	-	R	-		Circuit 2 low pressure
7000	%/10	-	R	-	Analogue output	Condensation fan
7001	%/10	-	R	-		Circulating pump
7229	%	-	R	-		Circulator forcing	Only with the circulator off
628	%/10	-	R	-		Condensation fan circuit 2
950 BIT	MASK	0	R -	Alarms 4,5		High pressure	E001
		1				Low pressure	E002
		2				Compressor thermal protection	E003
		3				Fan thermal protection	E004
		4				Frost	E005
		5				Lack of flow E006
		6				DHW preparer low temperature	E007
		7				Lack of lubrication	E008
		8				High discharge temperature of Cp1	E009
		9				Solar collector at high temperature	E010
		12				Compressor 2 thermal protection	E013
		13				Fan 2 thermal protection	E014
		15				Pump thermal protection	E016
951 BIT	MASK	1				High temperature E018
		2 High discharge temperature of Cp2 E019
		3 Inverted pressure transducers E020
		6 Compressor 3 thermal protection E023
		7	R - Alarms 4 5			Fan 3 thermal protection	E024
		9				Pump 2 thermal protection	E026
		11				Incongruent temperatures	E041
		12				Poor heat exchange DHW	E042
		13				DHW accumulation tank in high temperature	E050
		14				I/O module 1 disconnected	E101
		15				I/O module 2 disconnected	E102
952 BIT	MASK	0	R - Alarms 4 5			Probe 1 error	E611
		1				Probe 2 error	E621
		2				Probe 3 error	E631
		3				Probe 4 error	E641
		4				Probe 5 error	E651
		5				Probe 6 error	E661
		6				Probe 7 error	E671
		7				Probe 8 error	E681
		8				Probe 9 error	E691
		9				Probe 10 error	E701
		10				Probe 11 error	E711
		11				Module 1 probe 1 error	E612
		12				Module 1 probe 2 error	E622
		13				Module 1 probe 3 error	E632
		14				Module 1 probe 4 error	E642
		15				Module 1 probe 5 error	E652
953 BIT	MASK	0	R - Alarms 4 5			Module 1 probe 6 error	E662
		1				Module 1 probe 7 error	E672
		2				Module 1 probe 8 error	E682
		3				Module 1 probe 9 error	E692
		4				Module 1 probe 10 error	E702
		5				Module 1 probe 11 error	E712
		6				Module 2 probe 1 error	E613
		7				Module 2 probe 2 error	E623
		8				Module 2 probe 3 error	E633
		9				Module 2 probe 4 error	E643
		10				Module 2 probe 5 error	E653
		11				Module 2 probe 6 error	E663
		12				Module 2 probe 7 error	E673
		13				Module 2 probe 8 error	E683
		14				Module 2 probe 9 error	E693
		15				Module 2 probe 10 error	E703
954 BIT	MASK	0				Module 2 probe 11 error E713
		1 Link inverter	1 E801
		2 Link inverter	2 E802
		3 Link inverter	3 E803
		4 Hardware fault inverter 1	E851
		5 Hardware fault inverter 2	E852
		6 Hardware fault inverter 3	E853
		7 Overcurrent inverter 1		E861
		8 Overcurrent inverter 2		E862
		9 Overcurrent inverter 3		E863
		10				High temperature inverter 1	E871
		11				High temperature inverter 2	E872
		12				High temperature inverter 3	E873
		13				Bad voltage inverter 1	E881
		14				Bad voltage inverter 2	E882
		15				Bad voltage inverter 3	E883
955 BIT	MASK	0				Phase sequence inverter 1	E891
		1				Phase sequence inverter 2	E892
		2				Phase sequence inverter 3	E893
		3 Model error inverter 1		E901
		4 Model error inverter 2		E902
		5 Model error inverter 3		E903
		6				Overload error inverter 1	E911
		7				Overload error inverter 2	E912
		8				Overload error inverter 3	E913
		9				Overcurrent PFC inverter 1	E921
		10				Overcurrent PFC inverter 2	E922
		11				Overcurrent PFC inverter 3	E923
		12				Internal communication error inverter 1	E931
		13				Internal communication error inverter 2	E932
		14				Internal communication error inverter 3	E933
		15				Fault PFC inverter 1	E941
956 BIT	MASK	0				Fault PFC inverter 2	E942
		1				Fault PFC inverter 3	E943
		2				Probe error inverter 1	E951
		3				Probe error inverter 2	E952
		4				Probe error inverter 3	E953
		5				Abnormal condition inverter 1	E961
		6				Abnormal condition inverter 2	E962
		7				Abnormal condition inverter 3	E963
		8				Inverter 1 EEPROM error E971
		9				Inverter 2 EEPROM error E972
		10				Inverter 3 EEPROM error E973
		11				High discharge temperature of Cp3	E029
		12				Anti-legionella performed correctly	E060
		13				Anti-legionella failed or stopped	E061

¹⁾ if enabled
2) the cycle is activated only if the DHW (4-5-6) status is terminated by the machine.
3) if the read value is equal to 32766 the probe is not configured, if 32767 the probe is faulty.
4) reset alarms, write the value 0 with the command 6 on any of the registers of the alarms area.
⁵⁾ the alarms of circuit 2 are mapped in the same way with an offset of 20000 (e.g. 20950).

Restart control, write with command 6 the value -3856 (without sign 61680) to register 200, only with compressor stopped.

sime