GW14793 - Thermostat Gewiss - Free user manual and instructions

USER MANUAL GW14793 Gewiss

Pack contentThe 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

SummarySetting 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 38GENERAL DESCRIPTION

Physical address programming LED Physical address programming key Control elements and rear displayThe thermostat is fitted with a backlit LCD display and 5 control buttons which are always accessible. GENERAL DESCRIPTION

Position of the commandsCONTROL BUTTONS Symbol Page Fan-coil speed regulation FAN

VDU SIGNALS Auto operation mode for the connected fan coil AUTO Manual operation mode for the connected fan coil MAN Thermostat in operation mode OFF OFF Operation mode speed OFF fan coil ON speed 1 speed 2 speed 3

Activation of heating 44 Activation of air-conditioning 44 Thermal differential Temperature set-point – Operation mode

Activation by remote control Temperature unit of measurement

Ambient temperature measured Setting parameters SET

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. The thermostat foresees 4 different operation modes:

• 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. In the economy, precomfort and comfort function modes the thermostat permanently uses the corresponding temperature set-points. The current ambient temperature and the symbol , , or appear on the screen. Control mode Operation modeGENERAL DESCRIPTION

MEANING OF 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 T FROSTPROTECT. The message ”OFF” and the measured ambient temperature are displayed on the VDU. 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 T HIGH TEMPERATURE PROTECTION. The message ”OFF” and the measured ambient temperature are displayed on the VDU. 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. Symbol Heating Air conditioning Set point Operation mode Set point Operation mode TECONOMY Economy TCOMFORT Comfort TPRECOMFORT Precomfort TPRECOMFORT Precomfort TCOMFORT Comfort TECONOMY EconomyDuring operation, the activation of. the heating or air-conditioning functions are indicated as followed: 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. 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. 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. 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: If local set point changes are enabled via ETS, the following parameters are also displayed and editable locally: if the control logic = proportional if the control logic = 2 points if the control logic = fan coil if the devices is set as Slave with mode settings by ETS or autonomous with remote controls enabled if Slave function = on or device set as Slave with Set Point settings by ETS if Slave function = off 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 dis- abled) P05cond - Control logic (displayed but dis- abled) Operation type (heating/air conditioning) Day of the week Hours Minutes Temperature unit of measurement 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 P13 Enabling/disabling of the Slave function P06heat - Cycle time P06cond - Cycle time P07heat - Proportional regulation differen- tial value P07cond - Proportional regulation differen- tial value P08 - Minimum percentage value to send the command (displayed if the 1 byte command is selected via ETS) P09heat - 2 point regulation diff. value P09cond - 2 point regulation diff. value P14 - Set point variation interval for manual override P15 - Enable remote control mode settingsTo 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). 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. 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. 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. 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 46Setting 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. P01 heat - Set Point setting (heating) The temperature value starts to blink when the symbol appears. Regulate the value (TECONOMY) using the keys. Press the key within 30 seconds to confirm the value set. P01 cond - 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. P02 heat - 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. P02 cond - Set Point setting (air conditioning) The temperature value starts to blink when the symbol appears. Regulate the value(T PRECOMFORT) using the keys. Press the key within 30 seconds to confirm the value set. OPERATING INSTRUCTIONS

HP03heat - 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. 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. P04 heat - 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. P04 cond - 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: - H EATING TFROSTPROTECT - AIR CONDITIONING

THIGH TEMPERATURE PROTECTION

OPERATING INSTRUCTIONS 48P05 - Control logic When P05 appears on the screen, the thermal regulation system control logic is displayed. (00 = 2 point control, 01 = proportional control, 02 = fan coil control) 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 - heat for heating; - the temperature is equal to or higher than the set point + cond for air-conditioning; The diagrams below show the two function types.

EATING 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

set point set point heat condPROPORTIONAL 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).

When the temperature reaches set point - 1heat (in heating) or set point + 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 - 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 50To 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

set point valve OFF valve ON

set point valve ONvalve OFF

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. 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. 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

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.E

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. 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. 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. P11 - Speed 2 regulation differential value When the P11appears 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

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. 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. 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.

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. 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. , or or blink 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. 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. Temporary temperature forcing Reset and reinstatement of default settingsOPERATING INSTRUCTIONS

Day of the week 1: Monday Time 00:01 Heating temperature set-point

Control logic 2 points Differential regulation for 2 point control Heating Air conditioning

Differential regulation for proportional control

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. Behaviour on the failure and reinstatement of the bus power supplyOPERATING INSTRUCTIONS

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

Replace the thermostat in the support base, as seen in the figure below, and replace the screws under the device. 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. Use a dry cloth to clean the thermostat.

Cleaning the thermostatINSTALLATION 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. 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. 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 Correct installation position Assembly of the support baseINSTALLATION INSTRUCTIONS

Mounting on a round (or square) box

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

4. Keep a distance of at least 4 mm between the individually insulated cables of the bus

line and those of the electric line.

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

Shield Electrical continuity conductor Bus cable Bus 230 V ≥ 4 mm Warnings for KNX/EIB installationsINSTALLATION INSTRUCTIONS

WARNING: the unused bus signal cables and the electrical continuity

conductor must never touch elements under power or the earth conductor. 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.

3. 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.

bus Bus device connection Bus cable connection Electrical connectionsINSTALLATION INSTRUCTIONS

3. Insert the bus connector into the special feet of the device. The fastener guides

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

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 buttons 1 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 sensor reading resolution: 0.1 °C reading accuracy: ± 0.5 °C to 20 °C intervals between the next readings: 1 minute Temperature regulation ranges T frostprotect: +2 ÷ +7 °C T high temperature protection: +30 ÷ +40 °C Other 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 Ø 1 mm Protection rating IP20 Dimension (L x H x W) 85 x 95 x 23 mm Reference standards Low Voltage Directive 2006/95/EC Electromagnetic Compatibility Standard 89/336/CEE EN50090-2-2, EN60730-1 Certification KNX/EIBSOMMAIRE

CONTRÔLE DU FAN COIL

set-point soupape ARRET soupape MARCHE

set-point soupape MARCHEsoupape ARRET