GW14793 - Thermostat Gewiss - Free user manual and instructions

Product Type	Wall-mounted EIB thermostat for thermal regulation
Brand	Gewiss
Model	GW14793
Dimensions (W x H x D)	85 x 95 x 23 mm
Weight	Approximately 100 g (estimate)
Power Supply	KNX/EIB bus 29 V DC SELV + rechargeable battery ML1220 3 V (clock backup)
Bus consumption	5 mA
Display	Backlit LCD with timeout
Control elements	5 front buttons, 1 physical address programming button
Temperature sensor	Integrated NTC, resolution 0.1 °C, accuracy ±0.5 °C at 20 °C
Temperature display range	0 to +45 °C
Setpoint ranges	Frost protection: +2 to +7 °C; High temperature protection: +30 to +40 °C; Other: +5 to +40 °C
Operating modes	Off, Economy, Pre-comfort, Comfort
Operating types	Heating and cooling
Control algorithms	2-point (on/off) or proportional (PWM or continuous)
Fan coil management	Yes, for 2 or 4 pipe installations, speed control (auto/manual)
Configuration	Via ETS software (physical address, communication objects)
Additional functions	Scenarios (8), temporary override, remote control, slave/standalone mode
Backup power	Rechargeable battery ML1220 (36 h backup for clock)
Operating temperature	-5 to +45 °C
Relative humidity	Max 93% (non-condensing)
Protection rating	IP20
Maintenance and cleaning	Clean with a dry cloth. Do not use abrasive products or solvents.
Safety	Installation by qualified personnel according to IEC 64-8. Observe safety distances (4 mm between bus and mains cables).
Spare parts and repairability	Replaceable rechargeable battery ML1220. No other spare parts specified.
General information	Wall thermostat for KNX/EIB system. Used in combination with a master chronothermostat. Ensures thermal comfort and energy savings.

Frequently Asked Questions - GW14793 Gewiss

How to change the operating mode (heating/cooling)?

Press the SET key. The heating or cooling symbol flashes. Use the + or - keys to select the desired type, then press the central Ⓞ key to confirm.

How to temporarily override the temperature?

In Economy, Pre-comfort or Comfort mode, use the + or - keys to adjust the setpoint. The T or T: symbol flashes. Confirm by pressing the central key or wait 5 seconds. The override remains active until the next mode change.

How to perform a full reset?

Press the FAN and SET keys simultaneously for 2 seconds. All parameters return to factory default values (heating, OFF mode). Note: this action erases any custom configuration.

How to replace the backup battery?

Remove the lower fixing screw, detach the thermostat from the base. Open the battery compartment and replace it with an identical ML1220 battery observing polarity. Replace the thermostat and tighten the screw. If the bus was not powered, set the date and time again.

What to do if the heating or cooling symbol flashes?

The flashing indicates that the thermostat sent an activation command but did not receive confirmation from the actuator. Check the bus connections and the actuator. If the problem persists, press FAN + central key for 5 seconds to unlock the situation.

How to set the clock and day?

Press SET until the day flashes. Use + or - to select the day, confirm with the central key. Then set the hours then minutes in the same way. The time is maintained by the backup battery in case of bus power failure.

What are the available operating modes?

The thermostat offers 4 modes: OFF (frost protection in heating, high temperature protection in cooling), ECONOMY, PRE-COMFORT and COMFORT. In standalone mode, switch with the central key. In slave mode, the mode is imposed by the master.

How to configure the thermostat for a KNX/EIB system?

The thermostat is configured via ETS software. Assign a physical address (programming button + red LED), then define the communication objects (setpoints, modes, sensors, etc.). Local parameters (setpoints, control logic) are accessible via the SET menu after ETS configuration.

Where to install the thermostat for accurate measurement?

Install the thermostat approximately 160 cm above the floor, away from drafts, direct sunlight, doors and windows, and far from radiators or air conditioners. Fix the base to the wall or on a round/square flush-mounting box (60 mm spacing).

What to do if the display shows only dashes?

This means the thermostat is powered only by the backup battery (bus power off). Temperature measurement is disabled. Restore bus power for normal operation. If the problem persists after restoring bus power, check the connections and the battery.

USER MANUAL GW14793 Gewiss

14:05 T8 20.0 °C FAN SET GEWISS KNX E13

GW 10 793 GW 14 793

pag.

AVVERTENZE GENERALI

Technical line drawing of a device rear panel with internal compartments and connectors (no text or symbols)

Simple line drawing of a rectangular object with a central explosion-like symbol and the label 'SET' at the bottom (no text or symbols on the object itself)

Simple diagram with a temperature symbol and a starburst icon, no text or labels present

Simple diagram with a gray rectangle, a white outline, and a black starburst symbol on the right (no text or labels)

P O I T- 16.0 °C SET

P.O.I Tc 24.0°C SET

P 02 Te 18.0 °C SET

P02 26.0 SET

P03 20.0°C SET

P03 28.0 SET

P.OY 05.0° SET

P 04 35.0 SET

POS 00 SET

RISCALDAMENTO set point T ΔTrisc set point ΔTcond T

CONDIZIONAMENTO

P 06 20 SET

P 09 00.2 °C SET

P 10 00.2 °C SET

P 11 00.2 °C SET

P 12 00.2 °C SET

NOTA 1

P 13 00 SET

P 14 03.5 °C SET

P IS On SET

Diagram showing three-step installation of a car interior with screwdriver, labeled parts ① to ③.

Cross-sectional diagram of a device casing showing internal compartments and components (no text or labels)

ISTRUZIONI D'IMPIEGO

Diagram showing a mechanical or electrical component with labeled parts 1 and 2, indicating directional flow or assembly.

ATTENZIONE

Four-panel illustration showing a window, ceiling-mounted sensors, and sunlight rays interacting with a window (no text or symbols)

Diagram of a device interior showing internal components and a cable inserted into a housing (no text or labels)

Diagram showing three-step installation of a screwdriver with labeled parts and directional arrows indicating motion.

DATI TECNICI

Control elements and rear display 39

Position of the commands 40

Command description 41

Control mode 42

Operation mode 42

USER INSTRUCTIONS

Setting parameters 44

Temporary temperature forcing ....55

Reset and reinstatement of default settings ....55

Default parameters 56

Behaviour on the failure and reinstatement of the bus power supply .....57

Replacing the battery 58

Cleaning the thermostat ....59

INSTALLATION INSTRUCTIONS

Correct installation position 60

Assembly of the support base 60

Warnings for KNX/EIB installation 61

Electrical connections 62

Completing installation ....64

TECHNICAL DATA 65

GENERAL INFORMATION

Warning! The safety of this appliance is only guaranteed if all the instructions given here are followed scrupulously. These should be read thoroughly and kept in a safe place. The Chorus products must be installed in compliance with the requisites of standard CEI 64-8 for devices for domestic use and similar, in non-dusty atmospheres and where special protection against water penetration is not required.

The GEWISS sales organisation is at your disposal for clarifications and technical information.

Gewiss SpA reserves the right to make changes to the product described in this manual at any time and without giving any notice.

Pack content

n. 1 EIB wall thermostat

n.1 Support base

n. 1 Bus terminal

n. 1 Installation and user manual

Summary

The EIB wall thermostat allows you to manage the temperature in the area it is installed in. The temperature is regulated by the KNX/EIB actuators which are managed by the Building Automation KNX/EIB bus and control the heating or air-conditioning elements, including the fan coils.

When combined with the EIB wall timer-thermostat (GW 10 791 - GW 14 791), from which it receives the operation type and mode via the bus, it is possible to create multi-zone thermal regulation systems.

The set point values used by the thermostat are those set via ETS and can be changed locally and via bus if these options were enabled during ETS configuration.

The thermostat comprises:

• 2 function types: heating and air conditioning;
• 4 operating modes: OFF, Economy, Precomfort and Comfort;
• 4 temperature settings for the heating function (Teconomy, Tprecomfort, Tcomfort, Tfrostprotect.)
• 4 temperature settings for the air-conditioning function (Teconomy, Tprecomfort, Tcomfort, Thigh_temperature_protection);
• 2 temperature control algorithms: at 2 points (command ON/OFF or 0% / 100% ) and proportional (PWM or continuous type control);
• fan coil control for 2 or 4 way system and speed control.

The thermostat is powered by the supplied bus line and is fitted with a timer backlit LCD display, 5 control buttons, an integrated sensor to detect the room temperature (the value of which is sent to the bus at a programmable frequency or following a temperature change of at least 0.5^ C, according to ETS settings), a rechargeable battery (included) to maintain the date and time on the display (when power is disconnected from the bus).

The device is configured by the ETS software to achieve one of the functions listed below:

Temperature control

• with 2 points, ON/OFF commands or 0% 100% commands;
  • proportional control, with PMW commands or constant regulation (0% ÷ 100%).

Fan coil control

• fan coil speed control with ON/OFF selection controls or constant regulation (0% ÷ 100%);
• 2 or 4 way system control with ON/OFF commands or 0% / 100% commands.

GENERAL DESCRIPTION

Setting the operation mode

• from the bus with separate 1 bit objects (OFF, ECONOMY, PRECOMFORT, COMFORT);
  • from the bus with 1 byte objects.

Temperature reading

• with integrated sensor or temperature probe;
• mixed with definition of the relative weight.

Temperature control in zones

• with operating mode received from the master device and using room set points;
• with set point value received from the master device and room temperature differential.

Scenes

• memorising and activating the 8 scenes (value 0..63).

Other functions

• setting of the (OFF, ECONOMY, PRECOMFORT, COMFORT) set point by the bus;
• setting the function type (heating/air conditioning) by the bus;
• transmission to the bus of the status information (mode, type), the temperature reading and current set point;
• management of status information sent from the controlled actuator;
• window status signal management to temporarily turn off the thermostat.

The device is installed on the wall using the supplied flange that can be fixed to the wall using dowels or screwed onto a round or square flush-mounted box.

GENERAL DESCRIPTION

Control elements and rear display

Physical address programming key Physical address programming LED

GENERAL DESCRIPTION

Position of the commands

The thermostat is fitted with a backlit LCD display and 5 control buttons which are always accessible.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 FAN SET OFF MAN AUTO SET

GENERAL DESCRIPTION

Command description

CONTROL BUTTONS Symbol Page

① Fan-coil speed regulation FAN 44
② Temperature regulation (+) / Select settings 54
③ Select operation mode / confirmation 42
④ Temperature regulation (-) / Select settings 54
⑤ Setting parameters SET 44

VDU SIGNALS

⑥ Auto operation mode for the connected fan coil AUTO
⑦ Manual operation mode for the connected fan coil MAN
⑧ Thermostat in operation mode OFF OFF
⑨ Operation mode fan coil ON speed OFF 44 speed 1 -- speed 2 -- speed 3

⑩ Activation of heating 44
11 Activation of air-conditioning 44
⑫ Thermal differential △T
13 Temperature set-point – Operation mode T. T: T 42
14 Day of the week 46
⑮ Clock 46
16 Heating function 46
17 Air conditioning function 46
18 Activation by remote control
19 Temperature unit of measurement ^ C / ^ F 46
20 Ambient temperature measured
21 Setting parameters SET

Control mode

The thermostat can be set to 2 different control modes:

- Slave: operations depend on the device set as the Master (for example, the EIB GW 10 791 timer-thermostat), that sets the type, operation mode or set point for the thermostat according to ETS settings. In the first case (mode), the thermostat uses the set points set via ETS which can be changed locally and via bus if these options were enabled in ETS settings. It is possible to temporarily force the set temperature set-point (max variation ± 5 °C), whilst it is not possible to change the operation mode. The forced set-point will remain valid until the Master device sends a new operation mode. In the second case (set point), the thermostat uses the set point received from the Master device to which a local variation (max ± 5 °C) can always be applied.

- Stand alone: the thermostat operation type and mode are set locally. The operation status does not depend on any other device. In Stand-alone mode it is possible to vary the set-point at will and enable the thermostat to receive remote commands for mode settings (OFF/Economy/Precomfort/Comfort) and type (Heating/Air-conditioning) from other devices, such as for instance a button or the EIB GSM remote control unit GW 90 815.

Operation mode

The thermostat foresees 4 different operation modes:

• ECONOMY
- PRECOMFORT
• COMFORT
- OFF-FROSTPROTECT / HIGH TEMPERATURE PROTECTION

In the Stand Alone control mode use the key to switch from one mode to another. In Slave control mode, with Master operation mode settings, the key is not enabled since the operation mode is set by the device set as Master.

1 2 3 4 5 6 7 09:50 T2 28.0 °C

In the economy, precomfort and comfort function modes the thermostat permanently uses the corresponding temperature set-points.

The current ambient temperature and the symbol, T-, T=, or appear on the screen.

GENERAL DESCRIPTION

MEANING OF T. T: T:

Symbol	Heating Air conditioning
	Set point	Operation mode	Set point	Operation mode
T-	TECONOMY	Economy	TCOMFORT	Comfort
T=	TPRECOMFORT	Precomfort	TPRECOMFORT	Precomfort
T=	TCOMFORT	Comfort	TECONOMY	Economy

09:50 6.7°C OFF

The frostprotect function is only enabled in heating function mode, when the thermal regulation system is OFF. In this case the thermostat uses the set frostprotect set-point re-starting the heating system only when the ambient temperature decreases below TFROSTPROTECT.

The message "OFF" and the measured ambient temperature are displayed on the VDU.

09:50 31.2°C OFF

The high-temperature protection function is only enabled in air-conditioning mode, when the thermal regulation system is OFF.

In this case the thermostat uses the set high-temperature set-point

re-starting the air-conditioning system only when the ambient temperature exceeds the THIGH TEMPERATURE PROTECTION.

The message "OFF" and the measured ambient temperature are displayed on the VDU.

1 2 3 4 5 6 7 09:50 T 28.0 °C

In Slave mode with Master set point settings, the key is disabled. The temperature and symbol T appear on the screen. The thermostat uses the set point received via bus from the Master device.

OPERATING INSTRUCTIONS

During operation, the activation of. the heating or air-conditioning functions are indicated as followed:

1 2 3 4 5 6 7 09:50 T2 19.7°C °F

Heating

The symbol indicates that the activation command has been sent to the actuator which controls the boiler or the zone electrovalve. If the load notice has been sent via the ETS and the thermostat does not receive confirmation from the actuator that the same has been activated, the symbol starts to flash. Subsequently, the thermostat sends the activation command again, at one minute intervals, until it receives a positive response.

1 2 3 4 5 6 7 09:50 T2 28.0 °C

Air conditioning

The symbol indicates that the activation command has been sent to the actuator which controls the air-conditioner or the zone electrovalve. If the load notice has been sent via the ETS and the thermostat does not receive confirmation from the actuator that the same has been activated, the symbol starts to flash. Subsequently, the thermostat sends the activation command again, at one minute intervals, until it receives a positive response.

1 2 3 4 5 6 7 09:50 T8 20.6 °C MAN

Operation with fan-coil control activated

The symbol appears on the display if the fan-coil control is activated in the parameter settings.

Press the FAN key repeatedly to adjust the fan-coil speed or set the AUTO mode option, where the fan-coil speed is automatically regulated according to the difference between the set-point set on the device and the current temperature. The fan coil speed indicator flashes when the fan is running.

Setting parameters

To set the thermostat parameters, press the SET key.

The word SET appears on the display and the symbol of the set operation type (heating or air-conditioning) starts to flash.

OPERATING INSTRUCTIONS

It is possible to set the following parameters:

Operation type (heating/air conditioning)

Day of the week

Hours

Minutes

Temperature unit of measurement

If local set point changes are enabled via ETS, the following parameters are also displayed and editable locally:

Heating Air conditioning
P01heat - Set Point P01cond - Set Point
P02heat - Set Point P02cond - Set Point
P03heat - Set Point P03cond - Set Point
P04heat - Set Point TFROSTPROTECT	P04cond - Set Point THIGH TEMPERATURE PROTECTION
P05heat - Control logic (displayed but disabled)	P05cond - Control logic (displayed but disabled)

if the control logic = proportional

P06heat - Cycle time P06cond - Cycle time
P07heat - Proportional regulation differential value	P07cond - Proportional regulation differential value
P08 - Minimum percentage value to send the command (displayed if the 1 byte command is selected via ETS)

if the control logic = 2 points

P09heat - 2 point regulation diff. value

P09cond - 2 point regulation diff. value

if the control logic = fan coil

P10heat - Speed regulation diff. value 1	P10cond - Speed regulation diff. value 1
P11heat - Speed regulation diff. value 2	P11cond - Speed regulation diff. value 2
P12heat - Speed regulation diff. value 3	P12cond - Speed regulation diff. value 3

if the devices is set as Slave with mode settings by ETS or autonomous with remote controls enabled

P13 Enabling/disabling of the Slave function

if Slave function = on or device set as Slave with Set Point settings by ETS

P14 - Set point variation interval for manual override

if Slave function = off

P15 - Enable remote control mode settings

OPERATING INSTRUCTIONS

To scroll the sequence, confirming the values displayed on the screen, press the key until you reach the parameter you want to change.

Press the SET key again to exit the parameter setting procedure or it will exit automatically after a 30" time-out.

It is necessary to perform both sequences to set the heating and air-conditioning parameters (in the second sequence it is possible to confirm the parameters which are the same, and just change the specific ones).

Simple line drawing of a rectangular object with a central explosion-like symbol and the label 'SET' at the bottom (no text or symbols on the object itself)

Selecting heating/air conditioning

When the or symbol blinks it is possible to select the operating type using the keys

Press the Ⓞ key within 30 seconds to confirm the selection.

3 4 5 6 7 09:50 SET

Setting the day of the week

When the day of week bar is blinking, select the current day using the keys.

(Monday=1, Tuesday=2 ... Sunday=7).

Press the key within 30 seconds to confirm the value set.

09:30 SET

Setting the hour

When the hour figures blink, set the time using the keys ∧∨.

Press the key within 30 seconds to confirm the value set.

0:50 SET

Setting the minutes

When the minutes figures blink, set the minutes using the keys ∧∨

Press the key within 30 seconds to confirm the value set.

OPERATING INSTRUCTIONS

Simple diagram with a sunburst symbol and text 'SET' at the bottom, no readable text or labels present.

Simple diagram with a flame icon and a 'SET' label, no readable text or symbols beyond the label.

P01 T- 16.0°C SET

Setting the temperature unit of measurement

When the temperature symbol °C or °F starts to blink, select the temperature unit of measurement using the keys. Press the key within 30 seconds to confirm the value set.

P01heat - Set Point setting (heating)

The temperature value starts to blink when the symbol appears. Regulate the value (TECONOMY) using the V keys.

Press the key within 30 seconds to confirm the value set.

P.O.I Tc=24.0°C SET

P 02 Te 18.0 °C SET

P02 26.0 SET

P01cond - Set Point Setting (air conditioning)

The temperature value starts to blink when the symbol appears. Regulate the value (TCOMFORT) using the keys.

Press the ⓔ key within 30 seconds to confirm the value set.

P02heat - Set Point setting (heating)

The temperature value starts to blink when the symbol appears. Regulate the (T PRECOMFORT) value using the keys.

Press the key within 30 seconds to confirm the value set.

P02cond - Set Point setting (air conditioning)

The temperature value starts to blink when the T= symbol appears. Regulate the value(T PRECOMFORT) using the keys.

Press the key within 30 seconds to confirm the value set.

OPERATING INSTRUCTIONS

P03 20.0°C SET

P03heat - Set Point setting (heating)

The temperature value starts to blink when the symbol appears. Regulate the value (TCOMFORT) using the keys.

Press the key within 30 seconds to confirm the value set.

P03 28.0 SET

P03cond - Set Point (air conditioning) setting

The temperature value starts to blink when the symbol appears. Regulate the value (T ECONOMY) using the keys.

Press the key within 30 seconds to confirm the value set.

P.OY T 05.0 °C SET

P04heat - Set frostprotect temperature value

The temperature value starts to blink when the symbol appears. Regulate the frostprotect temperature value using the keys.

Press the key within 30 seconds to confirm the value set.

PO4 35.0 SET

P04cond - Set high temperature protection value

The temperature value starts to blink when the symbol appears. Regulate the high temperature protection value using the buttons.

Press the key within 30 seconds to confirm the value set.

WARNING!

The set-point values have the following limits:

- HEATING

T FROSTPROTECT

- AIR CONDITIONING

MPERATURE PROTECTION

OPERATING INSTRUCTIONS

POS 00 SET

P05 - Control logic

When P05 appears on the screen, the thermal regulation system control logic is displayed.

$$ \begin{array}{l} (0 0 = 2 \text { point control, } 0 1 = \text { proportional control, } 0 2 = \ \text { fan coil control) } \end{array} $$

The thermal regulation system control logic cannot be changed locally.

If the control is set to 2 points, go to point P09, if set to fan coil, go to point P10, if proportional, go to point P06.

2 POINT CONTROL

The thermal regulation system is switched off when the ambient temperature is equal to the set point, and is switched back on when:

• the temperature is equal to or lower than the set point - T heat for heating;
• the temperature is equal to or higher than the set point + T cond for air-conditioning;

The diagrams below show the two function types.

graph LR
    A["HEATING"] --> B["set point T"]
    B --> C["ΔT heat"]
    C --> D["set point T"]
    D --> E["ΔT cond"]
    E --> F["set point T"]

AIR CONDITIONING

To avoid continuous switchings, the thermostat will wait for up to 2 minutes before sending the activation command to the actuator that controls the thermal regulation system.

OPERATING INSTRUCTIONS

PROPORTIONAL CONTROL

At the end of each cycle time, the thermostat controls the ambient temperature and, based on the difference found with the set point, turns the boiler on or off (PWM) or sends a heating or cooling control value command (constant control).

FAN COIL CONTROL

When the temperature reaches set point - T_1heat (in heating) or set point + T_1cond (in air conditioning), an ON or 100% value message is sent to open the valve and an ON message (speed control 3) or 1 byte value (constant control) to start speed V1. At set point - T_2heat (in heating) or set point + 2cond (in air conditioning) speed V2 is starts, at a set point - 3heat (in heating) or set point + 3cond (in air conditioning) speed V3 is started.

OPERATING INSTRUCTIONS

HEATING

graph TD
    fanOFF["fan OFF"] --> V1["V1"]
    fanOFF --> V2["V2"]
    fanOFF --> V3["V3"]
    V1 -->|set point| V3
    V2 -->|set point| V3
    V3 -->|set point| V3
    subgraph 'set point'
        A["Valve ON"] --> B["Valve OFF"]
    end
    subgraph 'Valve ON' --> C["Valve OFF"]
    D["ΔT 3heat 1heat"] --> E["Valve ON"]
    F["ΔT 2heat"] --> G["Valve OFF"]
    end

EZH-SH
AIR CONDITIONING

graph TD
    subgraph_fan_OFF["fan OFF"]
        V3["V3"] --> V2["V2"]
        V1["V1"] --> V3
    end
    subgraph_Valve_ON_OFF["Valve ON/OFF"]
        V3 --> set_point_set_point
        V2 --> set_point_set_point
        V1 --> set_point_set_point
    end
    V3 -.-> V2
    V1 -.-> V3
    style fan_OFF fill:#f9f,stroke:#333
    style Valve_ON_OFF fill:#ccf,stroke:#333

To avoid continuous switchings, the thermostat will wait for up to 2 minutes before sending the activation command to the actuator that controls the thermal regulation system or to the actuator channels that control the fan coil speed.

OPERATING INSTRUCTIONS

WARNING: For fan coil speed control with ON/OFF type commands, if there is no actuator with interlock, enabling notifications from the controlled actuator and object link for ETS project configuration is recommended. In this case (for example, when switching from V1 to V2) the thermostat sends a start V2 speed command only after receiving notification on V1 speed command contact opening (switch from speed OFF). Without notification, the thermostat repeats the contact opening command until it receives a positive response. This condition is signalled on the display by the blinking symbol. If the condition persists, to exit the stalemate condition, simultaneously press the FAN key and the central key for 5 seconds.

P 06 20 SET

P06 - Setting the cycle time

When the P06 code appears on the screen, set the cycle time using the keys.

The values available are as follows: 5, 10, 20, 30, 40, 50, 60 minutes.

It is possible to set different cycle times for the heating and air-conditioning functions.

Press the key within 30 seconds to confirm the value set.

POT ΔT 1.6°C SET

P07 - Setting the proportional regulation differential value

When the P07 appears on the display, set the differential regulation value using the keys.

Possible values from 0.4 °C to 3.2 °C, with a pitch of 0.4 °C.

It is possible to set different regulation differentials for the heating and air-conditioning functions.

Press the key within 30 seconds to confirm the value set.

If a 1 bit value has been selected as the control value when configuring with ETS, move on to NOTE 1, otherwise move on to point P08.

OPERATING INSTRUCTIONS

P08 20 SET

P08 - Minimum percentage value to send the command

When the P08 code appears on the screen, set the percentage resolution to send the command to the thermal regulation control device.

The values available are as follows: 5%, 10%, 20%.

Press the ⓔ key within 30 seconds to confirm the value set.

Move on to NOTE 1.

P 09 00.2 °C SET

P09 - Setting the regulation differential for 2 point control

When the symbol appears, set the regulation differential time using the keys.

Press the key within 30 seconds to confirm the value set.

The regulation differential is the deviance between the set-point setting and the actual activation temperature. It is possible to set different regulation differentials for the heating and air-conditioning functions. It is recommended to retain the preset values except in special situations.

P 10 00.2 °C SET

P10 - Speed 1 regulation differential value

When the P10 appears on the display, set the differential regulation value to speed V1.

Possible values: from 0.2 °C to 2 °C with a pitch of 0.1 °C.

Press the ⓚkey within 30 seconds to confirm the value set.

P 11 00.2 °C SET

P11 - Speed 2 regulation differential value

When the P11 appears on the display, set the differential regulation value to speed V2.

Possible values: from 0.2 °C to 2 °C with a pitch of 0.1 °C.

Press the key within 30 seconds to confirm the value set. This parameter is significant if the number of fan coil stage set by ETS is greater than 1.

OPERATING INSTRUCTIONS

P 12 00.2 °C SET

NOTE 1

P12 - Speed 3 regulation differential value

When the P12 appears on the display, set the differential regulation value to speed V3.

Possible values: from 0.2 °C to 2 °C with a pitch of 0.1 °C.

Press the key within 30 seconds to confirm the value set. This parameter is significant if the number of fan coil stage set by ETS is greater than 3.

If the device was set as Slave with set point settings on ETS, go to point 14; if set as Slave with mode or Stand alone settings with remote control enabled, go to point P13. In other cases, programming is completed. Press the SET key to return to normal operations.

P 13 00 SET

P13 - Enabling/disabling of the Slave function

When the P13 code appears on the display, it is possible to deactivate the Slave function mode and activate the Stand alone function mode and vice-versa (01 = Slave function mode, 00 = Stand alone function mode).

Press the key within 30 seconds to confirm the value set.

If parameter P13=00 (Slave function disabled) go to point P15, if P13=01 (Slave function on), go to point P14.

P 14 03.5 °C SET

P14 - Set point variation interval for manual override

When P14 appears, select the admissible variation interval (min/max) for the value to be applied to the set point for manual override using the keys. The interval is symmetrical: select 3.5°C to set an interval between -3.5°C and +3.5°C.

Possible values: from 0 °C to 5 °C, with a pitch of 0.1 °C. The programming phase is now complete Press the SET key to return to normal operation mode.

OPERATING INSTRUCTIONS

P IS On SET

P15 - Enable remote control mode and operation type settings

When P15 appears, enable or disable remote controls using the keys.

(OFF = remote controls OFF, ON = remote controls ON)

The symbol on the display indicates that this option is enabled.

When the remote control option is enabled it is possible to remotely set the operation type and mode, for instance using the EIB GSM remote control unit (GW 90 815).

The programming phase is now complete Press the SET key to return to normal operation mode.

Temporary temperature forcing

In Economy, Precomfort and Comfort operating modes or in Master/Slave with set point control mode, the active temperature set point can be temporarily forced using the keys to set the desired value. Confirm the value by pressing the key or waiting for 5 seconds.

1 2 3 4 5 6 7 09:50 T=28.0°C

T. , or blin on the screen to indicate that forcing is enabled.

For Slave control mode, set point temperature variation is limited by the P14 - Set point variation interval for manual override parameter value.

Reset and reinstatement of default settings

Press the FAN and SET keys together for 2 seconds, when the device is powered by the bus, to reset the thermostat.

Caution: all the previously set parameters will be cancelled.

When it is turned back on, the thermostat will use the default factory settings. The thermostat will be set to heating in OFF mode.

OPERATING INSTRUCTIONS

Default parameters

Day of the week		1: Monday
Time		00:01
Heating temperature set-point	T1	16 °C
	T2	18 °C
	T3	20 °C
	TFROSTPROTECT	5 °C
Air-conditioning temperature set-point	T1	24 °C
	T2	26 °C
	T3	28 °C
	THIGH TEMPERATURE PROTECTION	35 °C
Temperature unit of measurement		°C
Control logic		2 points
Differential regulation for 2 point control	Heating	0.2 °C
	Air conditioning	0.5 °C
Differential regulation for proportional control		1.6 °C
Cycle time		20 minutes
Control mode		Slave

OPERATING INSTRUCTIONS

Behaviour on the failure and reinstatement of the bus power supply

When the bus power supply fails, the device performs no actions. The time and date are maintained by the buffer power system (rechargeable battery) whilst all the other settings are saved to a non-volatile memory. When the power is supplied by battery only, the device has an autonomy of 36 hours in the following conditions:

• time display active;
  • measure and temperature display not active (dashes are displayed);
• backlighting inactive;
• front keys are not enabled (except for the simultaneous pressing of FAN and SET).

When there is no bus power the simultaneous pressing of FAN and SET for 2 seconds will cause the rechargeable battery to disconnect inside the device. This function is used to conserve the efficiency of the battery when the device is not used for a long period.

The battery is then automatically reconnected when the device receives power from the bus. The set programs are not lost when there is a failure in the bus connection or when the battery is disconnected.

The device is in full operating mode within a maximum of 5 seconds from reinstatement of the bus power supply.

If the buffer power (rechargeable battery) is absent or disconnected, the thermostat will restart in OFF mode when the bus power is reinstated.

OPERATING INSTRUCTIONS

Replacing the Battery

Remove the fastener screws which are under the device, and remove the thermostat from the support base, as seen in the figure below.

Diagram showing a car interior with three labeled parts and a screwdriver tool, illustrating the process of turning or disassembly.

Remove the battery holder cover and replace the rechargeable battery with one of the same type (ML1220), paying attention to the direction of the poles.

Cross-sectional diagram of a device casing showing internal components and a directional arrow (no text or symbols)

OPERATING INSTRUCTIONS

Replace the thermostat in the support base, as seen in the figure below, and replace the screws under the device.

Diagram showing two labeled components (① and ②) in a circular arrangement, possibly illustrating a mechanical or electrical assembly.

WARNING

• If the thermostat was not powered by the bus whilst replacing the battery, update the time and date.
• Never throw the battery into a fire.

- The battery is a special waste product and therefore it must be disposed of according to the laws in force and taken to a special collection centre.

Cleaning the thermostat

Use a dry cloth to clean the thermostat.

INSTALLATION INSTRUCTIONS

WARNING: the installation of the device must be exclusively done by qualified personnel, following the regulations in force and the guidelines for KNX/EIB installations.

Correct installation position

In order for the thermostat to take correct readings of the ambient temperature, it must not be installed in an alcove, near a door or window, next to radiators or air conditioner units and must not be placed in direct sunlight or in draughty areas.

Illustration of four different scenes: ceiling-mounted air pollutants, window with arrows, sunlit windows, and a desk with items (no text or symbols)

Assembly of the support base

The support base should be positioned at 160 cm from the ground and can be mounted on the wall, using dowels, or on top of a 2-place round or square box (60 mm hole distance).

Mounting with dowels

Illustration of a hand using a screwdriver to adjust or install an electrical socket with attached wires (no text or symbols present)

INSTALLATION INSTRUCTIONS

Mounting on a round (or square) box

und (or square) box

Warnings for KNX/EIB installations

1. The length of the bus line between the EIB thermostat and the power supply unit must not exceed 350 metres.
2. The length of the bus line between the EIB thermostat and the most distant KNX/EIB device must not exceed 700 metres.
3. If possible do not create ring circuits so as to prevent undesirable signals and overloads.
4. Keep a distance of at least 4 mm between the individually insulated cables of the bus line and those of the electric line.

Bus ≥ 4 mm 230 V

1. Do not damage the electrical continuity conductor of the shielding.

Bus cable Electrical continuity conductor Shield

INSTALLATION INSTRUCTIONS

WARNING: the unused bus signal cables and the electrical continuity conductor must never touch elements under power or the earth conductor.

Electrical connections

bus +

Electrical connections diagram

1. Before connecting the KNX/EIB bus, insert the rechargeable buffer memory battery (see Replacing the Battery paragraph).
2. Connect the bus cable's red wire to the terminal's red connector (+) and the black wire to the black connector (-). Up to 4 bus lines (wires of the same colour in the same connector) can be connected to the bus terminal.

Bus device connection Bus cable connection

1. Insulate the screen, the electrical continuity conductor and the remaining white and yellow wires of the bus cable (should a bus cable with 4 conductors be used), which are not needed.

INSTALLATION INSTRUCTIONS

1. Insert the bus connector into the special feet of the device. The fastener guides determine the direction it should be inserted.

Diagram of a device interior showing internal components and a switch mechanism (no text or labels)

INSTALLATION INSTRUCTIONS

Completing installation

Position the thermostat on the support base, as seen in the figure below, and fix it in place using the supplied screws.

Diagram showing three-step assembly of a device with labeled parts and directional arrows indicating motion.

TECHNICAL DATA

Communication	KNX/EIB Bus
Power supply	By KNX/EIB Bus, 29 V dc SELV+ 1 rechargeable battery type ML1220 3 V to update date/time in the event bus power is out
Bus current consumption	5 mA
Bus wire	KNX/EIB TP1
Control elements	5 front buttons1 mini physical address programming key
Display elements	1 LED backlit LCD display (timed to user intervention)1 red physical address programming LED
Display range temperature	0 ÷ +45 °C
Reading elements	1 NTC sensorreading resolution: 0.1 °Creading accuracy: ± 0.5 °C to 20 °Cintervals between the next readings: 1 minute
Temperature regulation ranges	T frostprotect: +2 ÷ +7 °CT high temperature protection: +30 ÷ +40 °COther set points: +5 ÷ +40 °C
Ambit of use	Indoors, dry places
Operating temperature	-5 ÷ +45 °C
Storage temperature	-25 ÷ +70 °C
Relative humidity	Max 93% (no condensation)
Bus connection	Slot in terminal, 2 pin ∅ 1 mm
Protection rating	IP20
Dimension (L x H x W)	85 x 95 x 23 mm
Reference standards	Low Voltage Directive 2006/95/ECElectromagnetic Compatibility Standard89/336/CEEEN50090-2-2, EN60730-1
Certification	KNX/EIB

SOMMAIRE

page

AVERTISSEMENTS GÉNÉRAUX

Contenu de la confection 68

DESCRIPTION GENERALE

En bref 69

Technical line drawing of a device rear panel with internal compartments and connectors (no text or symbols)

Simple line drawing of a rectangular object with a starburst and 'SET' label at the bottom (no text or symbols on the object itself)

Programmation minutes

Simple diagram with a sunburst symbol and text 'SET' at the bottom, no readable text or labels present.

Simple diagram with a flame icon and a starburst symbol, no text or labels present

P01 T- 16.0°C SET

P.O.I Tc 24.0°C SET

P 02 Te 18.0 °C SET

P02 26.0 SET

P03 20.0°C SET

P03chauff - Programmation du Set-point (chauffage)

P03 28.0 SET

P03climat - Programmation du Set-point (climatisation)

P.OY T 05.0 °C SET

PO4 35.0 SET

POS 00 SET

CONTRÔLE DU FAN COIL

P 06 20 SET

P 09 00.2 °C SET

P 10 00.2 SET

P 11 00.2 °C SET

P 12 00.2 °C SET

REMARQUE 1

P 13 00 SET

P 14 03.5°C SET

P13 - Activation/désactivation de la fonction Slave

P IS On SET

Diagram showing three steps of a car door handle and screwdriver tool installation, with numbered annotations.

Cross-sectional diagram of a device casing showing internal compartments and components (no text or labels)

INSTRUCTIONS D'UTILISATION

Diagram showing two labeled components (① and ②) of a mechanical or electrical component, with arrows indicating direction.

ATTENTION

Four-panel illustration showing ceiling-mounted lighting, window, and sun rays interacting with a door (no text or symbols)

Diagram of a device interior showing internal components and a switch mechanism (no text or labels)

INSTRUCTIONS POUR L'INSTALLATION

Achèvement

Diagram showing three-step installation of a screwdriver into a car interior, with numbered annotations indicating component positioning.

DONNÉES TECHNIQUES

Simple line drawing of a rectangular object with a starburst symbol and the label 'SET' at the bottom (no readable text or symbols on the object itself)

3 4 5 6 7 09:50 SET

0950 SET

0:50 SET

Simple diagram with a rectangular shape, a small icon, and a sunburst symbol, labeled 'SET' at the bottom (no text or symbols within the shape)

Simple diagram with a flame icon and a starburst symbol, no text or labels present

P O I T- 16.0 °C SET

P01 24.0°C SET

P 02 Ts 18.0 °C SET

P02 26.0 SET

P03 20.0°C SET

P03 28.0 SET

P 04 T 05.0 °C SET

PO4 35.0 SET

POS 00 SET

P 06 20 SET

P 09 00.2 °C SET

P 10 00.2 °C SET

P II 00.2 °C SET

P 12 00.2 °C SET

NOTA 1

P 13 00 SET

P 14 03.5°C SET

P IS On SET

Diagram showing a car interior with three labeled parts and a screwdriver tool, illustrating mechanical assembly or repair instructions.

Cross-sectional diagram of a device casing showing internal components and housing (no text or labels)

INSTRUCCIONES DE USO

Diagram showing two labeled components (① and ②) in a circular arrangement, possibly illustrating a mechanical or electrical assembly.

ATENCIÓN

Four-panel illustration showing ceiling-mounted air ducts, window with arrows, and sun rays projecting a window (no text or symbols)

Illustration of a hand using a screwdriver to adjust or install an electrical socket with attached wires (no text or symbols present)

Diagram of a device interior showing internal components and a switch mechanism (no text or labels)

Diagram showing three-step installation of a screwdriver with labeled parts and directional arrows indicating motion.

DATOS TÉCNICOS

Technical line drawing of a device rear panel with internal compartments and connectors (no text or symbols)

Programmiertaste

Simple line drawing of a rectangular object with a starburst and 'SET' label at the bottom (no text or symbols on the object itself)

Simple diagram with a rectangular shape, a small icon, and a starburst symbol, labeled 'SET' at the bottom (no text or symbols within the shape)

Simple diagram with a flame icon and a 'SET' label, no readable text or symbols beyond the label.

P01 T- 16.0 °C SET

P01 24.0°C SET

P 02 Tz 18.0 °C SET

P02 26.0 SET

P03 20.0°C SET

P03 28.0 SET

P 04 T 05.0 °C SET

PO4 35.0 SET

POS 00 SET

P05 - Regellogik

P 06 20 SET

P 09 00.2 SET

P 10 00.2 °C SET

P 11 00.2 °C SET

P 12 00.2 °C SET

HINWEIS 1

P 13 00 SET

P 14 03.5°C SET

P IS On SET

Diagram showing three-step installation of a car interior with screwdriver, labeled parts ① to ③.

Cross-sectional diagram of a device casing showing internal compartments and components (no text or labels)

BEDIENUNGSANWEISUNG

Diagram showing a mechanical device with labeled parts 1 and 2, indicating directional movement or assembly.

ACHTUNG

Four-panel illustration showing ceiling-mounted air pollutants, sunlight rays from a window, and a close-up of a window with a sun (no text or symbols)

Montage des Bediensockels

Illustration of a hand using a screwdriver to adjust or install an electrical component, with no visible text or symbols.

Diagram of a device interior showing internal components and a switch mechanism (no text or labels)

Diagram showing three-step installation of a car interior with screwdriver, labeled steps ①, ②, and ③.

TECHNISCHE DATEN