GW14851 - Thermostat Gewiss - Free user manual and instructions
Find the device manual for free GW14851 Gewiss in PDF.
| Product type | Bidirectional wall-mounted RF chronothermostat |
| Brand | Gewiss |
| Model | GW14851 |
| Dimensions (W x H x D) | 120 x 92 x 19 mm |
| Weight | Approximately 150 g (batteries included) |
| Power supply | 3 alkaline 1.5V AAA batteries |
| Radio frequency | 868 MHz |
| Radio range | 100 m in free field |
| Operating temperature | -5 °C to +45 °C |
| Measured temperature range | 0 °C to +45 °C |
| Measurement accuracy | ±0.5 °C at 20 °C |
| Time programming resolution | 15 minutes |
| Number of programmable temperature levels | 3 (T1, T2, T3) from 5 °C to 40 °C |
| Main functions | Heating and cooling, Auto/Manual/Frost protection modes, weekly programming, Party and Holiday functions, temporary override, self-learning, remote control via GSM (optional) |
| Maintenance and cleaning | Clean with a soft, dry cloth. Do not use abrasive cleaners or solvents. |
| Safety | Installation in compliance with national electrical standards and IEC 60364. Do not expose to moisture or excessive dust. |
| Spare parts and repairability | Batteries replaceable by user. Internal components are not user-serviceable. Contact Gewiss after-sales service. |
| General information | Room thermostat connected to RF output modules (3A or 16A) to control boiler, valve, air conditioner, etc. |
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USER MANUAL GW14851 Gewiss
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Simple line drawing of two abstract symbols: a snowflake and a lightbulb with stars (no text or labels)text_image
SET T- 18.0text_image
SET 01.3 Δ7=0.13text_image
00:00 Tz 18.0 °Cnatural_image
Illustration showing three scenes: ceiling-mounted air vent, sunlight streaming through windows, and a window with a sun and mirror (no text or symbols)Two-way RF wall time-thermostat daily-weekly programme
Attention - Important
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.
Chorus products can be installed in environments which are dust-free and where no special protection against the penetration of water is required.
They shall be installed in compliance with the requirements for household devices set out by the national standards and rules applicable to low-voltage electrical installations which are in force in the country where the products are installed, or, when there are none, following the international standard for low-voltage electrical installations IEC 60364, or the European harmonization document HD 60364.
Gewiss sales organization is ready to provide full explanations and technical data on request.
INDEX
OPERATING INSTRUCTIONS page
- General description 30
- Description of the controls.... 31
- Radio frequency communication 32
- Operating modes.... 33
- Heating / Air conditioning selection 34
- Parameter setting.... 35
- Personalizing the daily program 39
- Temporary forcing of the temperature 40
- Party function 41
- Holiday function 42
- Sunday's program copy.... 43
- Manual operation 44
- Remote control.... 44
- Low batteries indication 45
- Reset and restore the preset values 46
- Preset programs.... 47
- Preset parameters.... 48
INSTALLATION INSTRUCTIONS
- Installation.... 49
- Battery replacement.... 51
FUNCTIONAL DETAILS / TECHNICAL DATA 52
OPERATING INSTRUCTIONS
General description
The two-way RF timer-thermostat controls the ambient temperature and the command of the RF CHORUS series actuators such as:
- 3A output modules,
- 16A output modules.
Activating the combined output modules makes it possible to control: boilers, zone valves, air conditioners, fan-coils, etc.
The timer-thermostat is provided with a display, 3 control buttons that are always accessible and 7 control buttons accessible when the hatch is open.

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21 22 23 24 25 26 27 28 30 29 2:08 20.7°C OFF T F MAN AUTO 1 2 3 4 5 6 7 SET PROC 8 18 17 20 16 15 14 19 13 1 2 3 4 5 6 7 SET PROC 8 18 17 20 16 15 14 19 13 1 2 3 4 5 6 7 SET PROC 8 18 17 20 16 15 14 19 13 ⑦ ⑧ ⑨ ⑤ ⑥ ⑫ ⑪ ⑩ ① ② ③ ④ ⑤ ⑥ ⑦OPERATING INSTRUCTIONS
Description of the controls
| CONTROL BUTTONS | Symbol |
| 1Programming / setting | |
| 2Regulate time | |
| 3Party | |
| 4Holiday | |
| 5Select heating / air conditioning | |
| 6Copy | |
| 7Regulate temperature (+) / Select parameters | |
| 8Select operating mode / Confirm | |
| 9Regulate temperature (−) / Select parameters |
DISPLAY INDICATIONS
| 10Functioning mode AUTO-MAN-OFF | |
| 11Temperature unit of measure °C / °F | |
| 12Ambient temperature measured | |
| 13Daily program profile | |
| 14Air conditioning activation | |
| 15Heating activation | |
| 16Thermal differential | ΔT |
| 17Clock | |
| 18Day of the week | |
| 19Self-learning function activation | T |
| 20Temperature set point | T, T= T= |
| 21Operating in heating mode | |
| 22Parameter setting status SET | |
| 23Operating in air conditioning mode | |
| 24Programming status PROG | |
| 25Holiday function | |
| 26Low batteries | |
| 27Holiday program copy function | |
| 28GSM remote control unit, command reception signal | |
| 29Party function | |
| 30Radio control transmission | |
Radio frequency communication
CONFIGURATION
To make the association with an output module press keys and simultaneously, after having set the output module in learn configuration (see the relative instruction sheet). The actual transmission of a command is signaled on the display by the temporary switching on of symbol RF transmission. Two different operations, “transmission” and “reception”, must be performed to make the association with the GW90822 interface:
1) Transmission: the keys and must be pressed simultaneously after having put the interface in learning configuration and set the front rotary switch to position 0 (see specific instruction sheet). Completed transmission of the command is signalled on the VDU by the temporary switch-on of the RF transmission symbol.
2) Reception: the keys and must be pressed simultaneously after having put the interface in learning configuration and set the front rotary switch to position 0 (see specific instruction sheet). The message LEA will appear on the VDU.
The symbol RF transmission will appear when the front button of the interface is pressed. On receipt of the command from the interface the time-thermostat returns to the status before the creation of the link.
OPERATION
The timer-thermostat operates in combination with a 3A or 16A output module in BISTABLE operating mode, sending switch on/switch off commands depending on its temperature regulation mode and the type of operation selected (heating or air conditioning).
The timer-thermostat periodically retransmits the command, every 5 minutes, to the combined actuator. If the actuator does not receive the message for 4 consecutive times, it commands opening of the relay (OFF) and signals the fault with the green LED blinking.
The time-thermostat is fitted with a transceiver able to transmit and receive RF commands from the Gewiss GSM remote control unit (GW90821) combined with the specific RF interface for remote control unit (GW90822). Remote commands and controls of the climate can be given in this configuration.
SIGNALS
Transmission of a command
The transmission of an RF command (ON/OFF) is signaled on the display by the temporary switching on of symbol 📄
OPERATING INSTRUCTIONS
Operating modes
The timer-thermostat offers 3 different operating modes::
- AUTOMATIC
- MANUAL
- OFF/ANTIFREEZE
Key is used to switch from one mode to another.

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1 2 3 4 5 6 7 16:28 T-22.2 °C AUTO 0 1 2 3 4 5 6 7 12 13 14 15 16 17 21 22 23 24In automatic operation the timer-thermostat uses a program that can be different for every day of the week. The text AUTO, the ambient temperature measured and the symbol of the set point relative to the current quarter of an hour appear on the display.
In the hourly profile the column relative to the current hour blinks with the representation of the active set point.

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1 2 3 4 5 6 7 16:28 22.2 °C MINIn manual operation the timer-thermostat permanently uses a temperature set point that can be freely set.
The text MAN and the ambient temperature measured appear on the display.

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1 2 3 4 5 6 7 16:29 22.4 °C OffAntifreeze operation is only active in heating. In this case the timer-thermostat uses the set point of the ntifreeze temperature set.
The text OFF and the ambient temperature measured appear on the display.
OPERATING INSTRUCTIONS
Operating modes
When operating, the activation of the heating or air conditioning is signaled as follows:

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1 2 3 4 5 6 7 12:08 T=20.7°C AUTO 0 5 8 9 12 15 18 21 24Heating
The symbol shows switching on of the heating.

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1 2 3 4 5 6 7 12:08 T-20.7°C AUTO 0 3 6 9 12 16 19 21 24Air conditioning
The symbol shows switching on of the air conditioning.
Heating / Air conditioning selection
Pressing key is used to switch the type of operating from heating to air conditioning and vice versa.

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1 2 3 4 5 6 7 12:08 T=20.7°C AUTO 0 3 6 9 12 15 18 21 24Heating
Symbol identifies heating.

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1 2 3 4 5 6 7 12:08 T-20.7°C AUTO 0 3 4 9 12 15 18 21 24Air conditioning
Symbol identifies air conditioning.
OPERATING INSTRUCTIONS
Parameter setting
Press the key once to set the parameters.
The SET symbol and the clock appear on the display, while the bar of the day of the week starts blinking.
At this point it is possible to modify, in sequence:
- day of the week,
- hours,
- minutes,
- temperature unit of measure,
- set point T1,
- set point T2,
- set point T3,
- self-learning activation,
-
differential regulation value.
-
antifreeze temperature value / high temperatures protection
Temperatures used in the heating or air conditioning program, differentiated by type of operation.
Alternatively it is possible to scroll the sequence pressing key, until the parameter to be modified is selected. The value of each parameter is confirmed by pressing key. The setting phase is exited by pressing key again or, automatically, 30 seconds after the last key entry.

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1≤3 4 5 6 7 09:50 SET 出Setting the day of the week
When the day of the week bar blinks, select the current day with keys ⏻⊕
(Monday=1, Tuesday=2 ... Sunday=7).
Press key within 30 seconds to confirm the set value.
OPERATING INSTRUCTIONS
Parameter setting

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1 3/4 5 6 7 09:50Setting the time
When the hour figures blink, set the hour with keys .
Press key within 30 seconds to confirm the set value.

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1 2 3 4 5 6 0 ≧ 50 < 800Setting the minutes
When the minutes figures blink, set the minutes with keys ⏻⊕
Press key Ⓞ within 30 seconds to confirm the set value.

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SET CSetting the temperature unit of measure
When the °C or °F symbol starts blinking, select the unit of measure with keys .∧∨
Press key Ⓞ within 30 seconds to confirm the set value.

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Simple line drawing of a fire and a snowflake with two stars (no text or symbols)OPERATING INSTRUCTIONS
Parameter setting

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SET T- 18.0Setting Set Point T1
When symbol appears, the temperature value starts to blink. Regulate the value of T1 with keys .^^Press key ⊙ within 30 seconds to confirm the set value.

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T=20.7Setting Set Point T2
When symbol Appears, the temperature value starts to blink. Regulate the value of T2 with keys .^^Press key ⊙ within 30 seconds to confirm the set value.

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BAR T: 22.0Setting Set Point T3
When symbol T appears, the temperature value starts to blink. Regulate the value of T3 with keys . ∧ ∨ Press key ⊙ within 30 seconds to confirm the set value.

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1~05.0Setting the antifreeze temperature value
When symbol 📁 appears, the temperature value starts to blink. Regulate the antifreeze temperature value with keys . Press key within 30 seconds to confirm the set value.
OPERATING INSTRUCTIONS
Parameter setting

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35.0℃Setting the high temperature value
When symbol appears, the temperature value starts to blink. Regulate the antifreeze temperature value with keys . Press key within 30 seconds to confirm the set value.
There are the following constraints between the set point values:
Heating: T antifreeze ≤ T1 ≤ T2 ≤ T3
Air conditioning: T1 ≤ T2 ≤ T3

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SET ONActivating self-learning
When symbol appears, activate (ON) or deactivate (OFF) the function with keys .
Press key Ⓞ within 30 seconds to confirm the set value.

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set OFFSelf-learning is used to activate the advance (max. 2 hours) on activating the heating. The timer-thermostat automatically manages the advance, so as to guarantee the temperature set at the start of each period of the programmed profile. This function is activated in heating, in automatic operating mode only.

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01.3Setting the regulation differential
When symbol appears, set the value of the regulation differential with keys
Press key Ⓞ within 30 seconds to confirm the set value.
The regulation differential is the displacement between the set point set and the actual activation temperature. Save for special situations, it is recommended to keep the preset value.
OPERATING INSTRUCTIONS
Personalizing the daily program
Press key ☐ twice to personalize the preset daily program or to make a modification.

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1 ≤ 3 4 5 6 7 PROG °C 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24The PROG symbol appears on the display while the bar for the first day of the week will start to blink.
Select the first day required with keys

Press key within 30 seconds to confirm the selection.

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1 2 3 4 5 6 7 00:00 PROG Tz 18.0 °C 0 1 2 3 4After confirmation of the first day, the current profile, relative to the day selected is displayed on the display.
The hour starts to blink.
Select the temperature set point that it is required to set starting from hour 00:00 using keys .^V

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1 2 3 4 5 6 7 00:00 T- PROG 16.0 °C 0 1 2 3 4The symbols T or T and the value corresponding to the selected set point appear on the display.
The set point is applied to the hourly profile until the first variation present in the current program.

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1 2 3 4 5 6 7 07:00 PROG T= 20.0 °C 0 5 4 9 12 15 18 21 24Increase the time with keys until the moment when it is required to modify the proposed profile; during the increase the column relative to the selected time blinks on the hourly profile.
Select the new set point with keys, which will be applied until the next variation present in the program.
OPERATING INSTRUCTIONS
Personalizing the daily program
The time is decreased/increased with steps of 15 minutes each time keys, are pressed, so it is possible to define up to 4 programming periods for each hour.
Proceed in the same way as described above until the profile is complete.
Copying the Program
If it is required to copy the program to the next day, confirm the programming performed by pressing key within 30 seconds.
Press key within 30 seconds to confirm the programming without copying; an automatic move is made to the programming for the next day.
Press key ② at the end of weekly programming to return to normal operations.
To activate the program select AUTO operating mode by pressing key until the AUTO symbol appears on the display.
Temporary forcing of the temperature
In AUTO operating mode it is possible to temporarily force the active temperature set point using keys to set the required value. Confirm the value by pressing key or waiting 5 seconds.

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1 2 3 4 5 6 7 16:32 T-22.7°C >AUTOActivation of the forcing is signaled on the display by the blinking of the AUTO symbol.
The forcing remains active until the first variation of the profile present in the programz.
OPERATING INSTRUCTIONS
Party function
In AUTO mode, the Party function is used to temporarily exclude the set program by manually entering a set point for a different temperature, for a period of between 1 and 23 hours inclusive. This function can be used, for example, to extend the comfort period during a dinner, a party, etc.

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1 2 3 4 5 6 7 03: h \ 1 / >20.0Press key to activate the function, the symbol appears on the display while the value of the set point active at that time starts blinking. Use keys to set the new value of the temperature set point. Use keys to set the number of hours of activation, that will be displayed on the display. Press key, or wait 5 seconds, to confirm the setting made.
When the function is active it is still possible to modify the value of the set point and period of activation, in the same way as described above.
The function can also be activated when the timer-thermostat in manual mode (MAN). The Party function remains active until the set period elapses.
The hours count is decremented during operation.
Press key for deactivation in advance: on deactivation, the timer-thermostat returns to the starting operating mode.
OPERATING INSTRUCTIONS
Holiday function
In AUTO mode, the Holiday function is used to temporarily exclude the set weekly program by manually entering a set point for a different temperature, for a period of between 1 and 99 days inclusive. This function could be used, for example, to program a period of economy during a holiday with reactivation of the program on the day of return.

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1 2 3 4 5 6 7 23: d \nb1 c/ -15.0Press key to activate the function, the symbol appears on the display while the value of the set point active at that time starts blinking. Use keys to set the new value of the temperature set point. Use keys to set the number of hours of activation, that will be displayed on the display. Press key or wait 5 seconds to confirm the setting made.
When the function is active it is still possible to modify the value of the set point and period of activation, in the same way as described above.
The function can also be activated when the timer-thermostat in manual mode (MAN).
The Holiday function remains active until the set period elapses.
The days count is decremented during operation.
Press key ① for deactivation in advance: on deactivation the timer-thermostat returns to the starting operating mode.
OPERATING INSTRUCTIONS
Sunday's program copy
In AUTO mode it is possible to copy the sunday's profile to any day of the week.
This function is particularly useful when a period of temporary comfort is required, for example, on a public holiday during the week.

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1 2 3 4 5 ≥7 12:08 T=20.7°C AUTO 0 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24Press key to activate the function, the symbol and the bar of the feast day start blinking on the display. Use keys to select the day of the week to which to copy the feast day profile; press key, or wait 30 seconds to confirm the setting made.

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1≤3 4 5 6 7 12:08 T=20.7°C AUTO 0 3 8 9 12 15 18 21 24When the function is active, pressing key displays the day to which the feast day profile has been copied: the corresponding bar starts blinking on the display. Press key again to deactivate the function; if it is required to modify the day of the week, use keys and press key, or wait 30 seconds to confirm the new setting.

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1 2 3 4 5 6 7 12:08 T: 20.7°C AUTO 0 3 8 9 12 15 18 21 24When the day selected for the feast copy is in progress, symbol is fixed on. The validity of the feast day copy is temporary, after midnight of the selected day, a return is made to the programmed weekly profile.
OPERATING INSTRUCTIONS
Manual operation

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1 2 3 4 5 6 7 12:08 \ 1 / >20.0 < MAXTo activate manual operating mode, press key , until the text MAN appears on the display. The temperature set point appears for about two seconds.
Use keys to set the required set point value, press key , or wait 5 seconds to confirm the setting.
Remote control
The time-thermostat communicates with the GSM GW 90 821 remote control unit by the GW 90 822 interface.
The SMS commands can thus be used to:
- set the type of operation (air conditioning/heating)
- set the operating mode (manual/automatic/off)
- set the operating set point (in MAN mode only)
- request the current status
Every SMS command sent to the device has a corresponding confirmation SMS (with predefined text that cannot be configured);
the status request message gives a reply that includes the following information:
- current operating type (heating/air conditioning)
- current operating mode (off/auto/man)
- set point temperature currently set
- ambient temperature measured
- last command sent to the heat regulation command actuator
In the case of flat batteries, the flat batteries signal will be sent at the end of every message. To optimise the duration of the batteries, the receiver is not active permanently but synchronises itself periodically with the remote control unit. The remote commands are therefore sent to the time-thermostat with a delay time due to the synchronisation period; this delay has a maximum duration of 5 minutes.
The following symbol is displayed on the VDU whenever the operating type or mode are modified from the remote control unit.
OPERATING INSTRUCTIONS
Low batteries indication

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1 2 3 4 5 6 7 12:08 20.7°C MKNWhen the batteries charge is low, the symbol on the display starts to blink. Operation of the timer-thermostat is guaranteed in any case. In this case, the batteries must be replaced as soon as possible.
Timer-thermostat operation is no longer guaranteed when symbol is fixed on, in this case the last operation guaranteed is automatic deactivation of the heating/air conditioning.
The available time for replacing the batteries is about 2 minutes, after which only the clock/calendar setting will be lost: all the other settings are kept in non-volatile memory.
OPERATING INSTRUCTIONS
Reset and restore the preset values
Pressing keys, simultaneously 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 AUTO mode. The Party and Holiday functions are not active.
OPERATING INSTRUCTIONS
Preset programs
The timer-thermostat has 2 preset programs, one for heating and one for air conditioning.
HEATING PROGRAM

AIR CONDITIONING PROGRAM

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| Day | T1 | T2 | T3 | |----|----|----|----| | 0 | | | | | 3 | | | | | 6 | | | | | 9 | | | | | 12 | | | | | 15 | | | | | 18 | | | | | 21 | | | | | 24 | | | |These preset programs can be modified and personalized according to requirements. Follow the instructions contained in the “Daily program personalization” paragraph to make the modifications.
OPERATING INSTRUCTIONS
Preset parameters
Day of the week 1: Monday
Time 00:00
Heating temperature set point T1 16 °C
T2 18 °C
T3 20 °C
Tantifreeze 5 °C
Air conditioning temperature set point T1 24 °C
T2 26 °C
T3 28 °C
Thigh temperatures protection 35 °C
Self-learning Function disabled (OFF)
Differential regulation Heating 0.2 °C
Air conditioning 0.5 °C
Temperature unit of measure
°C
INSTALLATION INSTRUCTIONS
Installation
WARNING
- Before installation ensure that the associated output modules receive the commands correctly.
- In the installation phase respect the assembly direction ( ) on the base of the support.
Fitting with wall plugs.

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with wall plugs. TX GN D RX 4 5 6 1 2 3 UP ① ②Fitting to a 3-bay box.

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to a 3-bay box. 49INSTALLATION INSTRUCTIONS
Installation

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Click fixing of the timer-thermostat on the relative base and locking with screw.For correct reading of the ambient temperature to be controlled, it is important that the timer-thermostat is not installed in niches. Behind doors or near windows or sources of heat.

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Four-panel illustration showing ceiling lighting, window view, and outdoor scene with sun rays (no text or symbols)INSTALLATION INSTRUCTIONS
Battery replacement

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2b 2a 1 3x1.5V type AAA alkaline batteriesDo not dispose of dead batteries in the environment.
FUNCTIONAL DETAILS / TECHNICAL DATA
Type of operation: heating and air conditioning
Operating mode: automatic, manual and antifreeze
Operating temperature: -5^ ÷ +45^
Measured temperature: 0 ÷ +45°C
Temperature probe: NTC, 100KΩ at 25°C
Measurement accuracy: ±0.5°C at 20°C
Preset programs: 2 weekly programs
(heating and air conditioning)
Resolution hourly programming: 15 minute
Max. n° of temperature changes: 4 per hour
Temperature levels: 3 levels (T1-T2-T3) programmable
from 5 to 40°C differentiated
between air conditioning and heating
Temperature set point resolution: 0.1°C
Antifreeze temperature: adjustable from 2 to 7°C
High temperatures protection temperature adjustable from 30 to 40°C
Manual temperature: adjustable from 5 to 40°C
Differential regulation: adjustable from 0.2 to 2°C
Party function: timed from 1 to 23 hours
Holiday function: timed from 1 to 99 days
Temporary temperature forcing: settable
Thermal gradient self-learning: selectable, with max. advance of 2 hours
Unit of measure: ^ C or ^ F
Interval between two successive measurements: 1 minute
Remote control: with GW90821 remote control unit in combination
with the GW90822 interface (not included)
Batteries discharged signal: with symbol on the display
Radio frequency: 868 MHz
Radio range: 100 m in a free field
Supply: 2x1.5V type AAA alkaline batteries
Stand-by charge: 2 minutes for battery replacement
Max. dimensions (B x L x H): 120x92x19mm
FRANÇAIS
Chronothermostat RF bidirectionnel mural programme journalier-hebdomadaire
Attention - Important
Dans le fonctionnement manuel the timer-thermostat permanently uses a temperature set point that can be freely set. The text MAN and the ambient temperature measured appear on the display.

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1 2 3 4 5 6 7 16:29 22.4°C offProgrammation minutes
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SET T- 18.0Programmation du Set-point T1
Programmation du Set-point T2
Chauffage: T antigel ≤ T1 ≤ T2 ≤ T3
Climatisation: T1 ≤ T2 ≤ T3

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suit cool OnActivation autoapprentissage
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SET ON OFFnatural_image
Four-panel illustration showing air purification and window lighting, with no visible text or symbols.INSTRUCTIONS POUR L'INSTALLATION
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Simple line drawing of a fire with smoke and fire sparks (no text or symbols)text_image
SET T- 18.0text_image
SET ΔT=01.3text_image
00:00 Tz 18.0 °Cnatural_image
Four-panel illustration showing air purification and window lighting, with no visible text or symbols.natural_image
Simple line drawing of a fire and a snowflake with two stars (no text or symbols)Parameter-einstellung

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SET T- 18.0text_image
SET 01.3 Δ7=0.13natural_image
Four-panel illustration showing air purification and window lighting, with no visible text or symbols.Radio frequency command and control system
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Line drawing of a rectangular electronic device with circular ports and a handle (no text or symbols)Pulsantiera RF
RF button pad
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Line drawing of a wall-mounted electrical outlet with three slots (no text or symbols)RF movement and twilight sensor
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Isometric line drawing of a rectangular frame with a circular recess and central hole (no text or symbols)Cronotermostato RF
RF timer-thermostat
Chronothermostat RF
Cronotermostato RF
Chronothermostat RF

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Line drawing of a rectangular electronic device with a circular button and label (no readable text or symbols)text_image
Diagram showing a device transforming into a light bulb, illustrating the process of lighting or illumination.text_image
Diagram showing a device connected to a bottle, illustrating the process of packaging or cleaning.text_image
Diagram showing a device connected to a rack with a magnified view of its internal structure.Ripetitore di segnale RF / RF signal repeater Répétiteur de signal RF / Repetidor de señal RF Signalmelderstab RF
