GW14703 - Thermostat Gewiss - Free user manual and instructions

USER MANUAL GW14703 Gewiss

General description The time-thermostat manages ambient temperature control and control of the boilers, zone valves, conditioning units, fan-coils, etc. through a relay output. The time-thermostat is fitted with a backlighted LCD VDU and four control buttons. MODE SET PROG ab c d

SET/PROG: Program setting/Programming SET/PROG VDU SIGNALS

Daily program profile

Measured ambient temperature

HOLIDAY and PARTY functions

Signal of activation via GSM remote control unit

Operating type (heating/air conditioning)

Heating/air conditioning activation

The time-thermostat provides three different operating modes: - AUTOMATIC - MANUAL

- OFF/ANTIFREEZE/HIGH TEMPERATURE PROTECTION

Use the MODE key to switch from one mode to another. In automatic operation the time-thermostat uses a pro- gram that can be set by the user and which can also be different for each day of the week. The message “AUTO”, the measured ambient temperature and the set point symbol relative to the current quarter-hour are displayed on the VDU. The column relative to the current time with the repre- sentation of the active set point blinks in the time profile. In manual operation the time-thermostat permanently uses a temperature set point that can be freely set using the keys. The message “MAN” and the measured ambient temperature are displayed on the VDU. The antifreeze/high temperature protection opera- tions are active in heating and air conditioning mode re- spectively. In these two cases the time-thermostat uses the an- tifreeze/high temperature protection temperature set point that has been set. The message ”OFF” and the measured ambient temper- ature are displayed on the VDU.

During operation the closing of the output contact (heating/air conditioning activation) is signalled in the following way: Heating Symbol shows heating switch-on. Air conditioning Symbol shows air conditioning switch-on.

Press the SET/PROG key once to set the parameters. The message “SET” is displayed on the VDU. The symbol or starts to blink at the same time. At this point the following can be modified in sequence: - air conditioning/heating operating type - the day of the week - hours - minutes - temperature unit of measurement - Set point T1 - Set point T2 - Set point T3 - antifreeze/high temperature protection temperature value - self-learning activation (only available in “heating” operating mode) - differential regulation value The value of each parameter is confirmed by pressing the MODE key. Exit from the setting phase is done by pressing the SET key again or, automatically, 30 sec- onds after the last key entry.

Selecting heating/air conditioning When the or symbol blinks it is possible to select the operating type using the keys. Press the MODE key within 30 seconds to confirm. Setting the day of the week When the day of the week bar blinks, select the current day using the keys (Monday=1, Tuesday=2..... Sunday=7). Press the MODE 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 MODE key within 30 seconds to confirm the values set.

Setting the minutes When the minutes figures blink, set the minutes using the keys. Press the MODE key within 30 seconds to confirm the values set. Setting the temperature unit of measurement When the °C or °F starts to blink, select the unit of mea- surement using the keys. Press the MODE key within 30 seconds to confirm the values set. Setting set point T1 The temperature value starts to blink when the sym- bol appears. Adjust the value of T1 using the keys. Press the MODE key within 30 seconds to confirm the value set.

Setting set point T2 The temperature value starts to blink when the sym- bol appears. Adjust the value of T2 using the keys. Press the MODE key within 30 seconds to confirm the value set. Setting set point T3 The temperature value starts to blink when the sym- bol appears. Adjust the value of T3 using the keys. Press the MODE key within 30 seconds to confirm the value set. Setting the antifreeze/high temperature protection temperature value The temperature value starts to blink. Depending on the type of operation (heating/air condi- tioning), the antifreeze/high temperature protection tem- perature value can be adjusted using the keys. Press the MODE key within 30 seconds to confirm the value set. There are the following constraints for the set point val- ues: Heating: T antifreeze < T1 < T2 < T3 – Air conditioning: T1 < T2 < T3 < T high temperature

Activating self-learning (heating operating type only) When the symbol appears, activate (ON) or deacti- vate (OFF) the function using the keys. Press the MODE key within 30 seconds to confirm the value set. Self-learning is used to optimise the advance (max. 2 hours) for activating the heating. The time-thermostat manages the advance automati- cally, so as to guarantee the set temperature at the be- ginning of every period of the programmed profile. This function is activated in heating, in automatic oper- ating mode only. Setting the differential regulation value When the symbol appears, set the differential reg- ulation value using the keys. Press the MODE key within 30 seconds to confirm the value set. This value is differentiated by operation type (heating/ air conditioning) and represents the displacement be- tween the set point set and the actual activation tem- perature. It is recommended to retain the preset values except in special situations.

Press the SET/PROG key twice to personalise the preset daily program or modify it. The message “PROG” is displayed on the VDU, while the bar of the first day of the week starts to blink. Select the required day using the keys. Press the MODE key within 30 seconds to confirm the selection. After confirmation of the day, the current profile, relative to the day selected, is displayed on the VDU. The time will start to blink. Use the keys to incre- ment the time until the time for modifying the proposed profile is reached: the column relative to the time select- ed will blink during the increment of the time profile. Press the MODE key within 30 seconds to confirm the selection. One of the symbols, , or will blink on the VDU and the value corresponding to the selected set point is displayed. The keys are then used to select the new set point, which will be applied up to the next variation pre- sent in the program. Pressing the MODE key again makes it possible to select another time, starting from which a new set point can be selected in the way just described.

Personalising the daily programUSER INSTRUCTIONS

The time is decremented/incremented in steps of 15 minutes each time the keys are pressed, so it is possible to define up to 4 programming periods each hour. Press the MODE key for an extended period to confirm the programming, there will be an automatic move to programming for the next day. Copying the program If it is required to copy the program to the next day, confirm the programming done by pressing the keys simultaneously within 30 seconds. Press the SET/PROG key on completion of weekly programming to return to normal op- erating. To activate the program, select AUTO operating mode by pressing the MODE key until the message “AUTO” is displayed on the VDU. Temporary temperature forcing It is possible to temporarily force the active temperature set point in AUTO operating mode by using the keys to set the required value. Confirm the value by pressing the MODE key or waiting for 5 seconds. Activation of the forcing is signalled on the VDU by the blinking of the AUTO message. The forcing remains active until the first variation of the profile present in the program. The time profile relative to the fraction of the current day (AM/PM) is displayed in AUTO operating mode. Simultaneously pressing the keys displays the profile relative to the other fraction of the day. This indication is active for 5 seconds, after which the current profile reappears.

Personalising the daily programUSER INSTRUCTIONS

The party function is used to temporarily exclude the set program (AUTO mode) or the manual set point (MAN mode) by inserting a different temperature set point for a period of between 1 and 23 hours. This function can be used, for example, to extend the comfort period during a supper, a party, etc. Press the MODE key for 5 seconds to activate the func- tion: the symbol is displayed on the VDU and the set point value active at that time starts to blink. The keys are used to set the new temperature set point value. Pressing the MODE key moves on to setting the num- ber of hours of activation, which is displayed on the VDU. This regulation is done using the keys. Press the MODE key or wait 5 seconds to confirm the setting made. When the function is active it is still possible to modify the set point value and the peri- od of activation in the same way as described above. The party function remains active until the set period elapses. The count of the hours is decremented during operation. It is possible to deactivate the party function at any time, restoring the previous mode, by pressing the MODE key twice for an extended period. The holiday function is used to temporarily exclude the weekly set program (AUTO mode) or the manual set point (MAN mode) by manually inserting a different temperature set point for a period of between 1 and 99 days. This function can be used, for example, to program an economy period during a holiday and reactivating the program on the day of return.

The function is activated by pressing the MODE key for an extended period (PARTY function) and then pressing the MODE key again (HOLIDAY function). The symbol is displayed on the VDU. The keys are used to set the new temperature set point value. Pressing the MODE key moves on to setting the number of days of activation, which is dis- played on the VDU. This regulation is done using the keys. Press the MODE key or wait 5 seconds to confirm the setting made. When the function is active it is still possible to modify the set point and the period of ac- tivation value in the same way as described above. The HOLIDAY function remains active until the set period elapses. The count of the days is decremented during operation. It is possible to deactivate the holiday function at any time, restoring the previous mode, by pressing the MODE key for an extended period. To activate manual operating mode the MODE key is pressed until the message “MAN” is displayed on the VDU. The temperature set point begins to blink for about 2 seconds. The keys are used to set the re- quired set point value. Press the MODE key or wait 5 seconds to confirm the setting. The LCD VDU is equipped with backlighting that is active for 5 seconds whenever a key is pressed. In SET or PROG modes the backlighting remains active during parameter set- ting and during programming. It is deactivated on exit from these modes.

The time-thermostat has a serial connection for connecting to the GSM GW 90 821 remote control unit. Using SMS command (e.g. from a cellular telephone) it is possible to:

• set the type of operation (air conditioning/heating)

• set the operating mode (manual/automatic/OFF)

• set the operating set point (MAN mode only)

• request the current status The device replies to each command SMS sent with a confirmatory SMS (with a predefined, non-configurable text); the status request message will generate a reply that includes the following information:

• current type of operation (heating/air conditioning)

• current operating mode (OFF/AUTO/MAN)

• currently set set point temperature

• measured ambient temperature

• output status (ON/OFF) The symbol is displayed on the VDU whenever the operating type or mode are modified using the remote control unit. The device is fitted with a backup battery that guarantees updating of the time and the day of the week in the case of a blackout. There is an autonomy of 48 hours under the follow- ing conditions when the power supply is provided exclusively by the battery:

• measure and temperature display not active (dashes are displayed)

• backlighting not active

• relay switching not enabled (the relay contact is open)

• front keys not active (except the simultaneous pressing of all four keys). In the absence of the power supply the simultaneous pressing of all four front keys causes disconnec- tion of the backup battery 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 automatically reconnected once the device is connected to the electricity mains network. The set programs are not lost either in the case of a black- out or in the case of battery disconnection.

Operating in the case of a blackout Remote controlUSER INSTRUCTIONS

The time-thermostat has two preset programs, one for heating and one for air condi- tioning. HEATING PROGRAM Monday - Friday Saturday - Sunday

Preset programs Every day of the week These preset programs can be modified and personalised according to one’s own require- ments. Follow the instructions contained in the “Personalising the daily program” para- graph to make the modifications.

Assembly Pressing the 4 keys simultaneously with mains power present performs a complete reset of the timer-thermostat. N.B.: all parameters set and personalized programs will be cancelled. When the timer-thermostat is switched on again, it uses the parameters and programs preset in the factory. The timer-thermostat goes into heating in OFF mode. The Party and Holiday functions are not active. Reset and restore the preset valuesINSTALLATION INSTRUCTIONS

Cabling terminals Power supply L - Phase N - Neutral Output relay

Terminal description Battery removal If necessary (e.g. having to scrap the device, according to the dispositions of the WEEE regulations) the time-thermostat bat- tery is accessible by removing the cover as shown in figure A. To extract the battery it is recommended to use a small screw- driver as shown in figure B.