GW20853 - Thermostat Gewiss - Free user manual and instructions

USER MANUAL GW20853 Gewiss

• Congratulations for having choosing a Gewiss product. Gewiss products are constructed with careful attention to detail, using only high quality materials. Gewiss products assure you of peak performan-

• Carefully read the following instructions since they contain important information on installing and operating the product. The installer should give these instructions to the final user and ask him to read the contents.

• System programming products must be installed in conformity with the provisions of HD 384 - IEC364 regulations for devices for household or similar use in non-dusty rooms or where special protection against water penetration is not required.

• In case of failure and/or malfunction, contact an authorized technician or GEWISS SAT technical assistance service.13

• Operating mode: thermostat-controlled solenoid valve and continuous fan ope- ration, thermostat-controlled solenoid valve and fan operation, thermostat-con- trolled fan operation only and solenoid valve not connected

• Temperature setting block: mechanical with “range disk” (supplied)

• Indicator lights: load on/off LED

• Disconnection and appliance type: 1 B / Electronic

• Output type by control type: - continuous fan operation polarized single-pole switch 5(2)A / 250 V~ - solenoid valve (thermostat-controlled) polarized single-pole ON/OFF relay 5(2)A / 250 V~ - fan + solenoid valve relay + switch (thermostat-controlled) maximum total load 5(2)A / 250 V~

• Insulation type: Class II e

• Temperature control range: from +5°C to +30°C (limitable)

• Thermal gradient: max 1K/15 min.

• Control type: proportional band (width 1°C)

• Reading accuracy: ± 1°C

• Operating temperature range: 0°C to +50°C

"/-866/7.+<387;8798;3<387371 Install the thermostat at a height of from 1.50 to 1.70 m from the floor, far away from sources of heat, air ducts, doors or windows.

OK ! h 1,5 m N.B.: The examples shown in the following documentation are for illustration purposes only.

Example of installation with thermostat controlling the fan and solenoid valve. Example of installation with thermostat controlling only the fan. Fan-coilFan-coilThermostatThermostat16 INSTALLATION INSTRUCTIONS

698:<+7< the thermostat control outputs are polarized; pay close attention to Line and Neutral connections. '3:371as indicated in the figure. Disconnect the power supply (main breaker). Connect the supply line to terminals n° (Neutral) and n° (Line). Connect the fluid interception solenoid valve to terminal n° . Based on the type of installation, connect the wires for speed control coming from the fan to terminals n° : terminal n° - fan “High” terminal n° - fan “Medium” terminal n° - fan “Low” maximum load at fan terminals (): 5(2) A 250 V~ maximum load at valve terminal n° : 5(2) A 250 V~ maximum total load with fan + valve: 5(2) A 250 V~ 698:<+7< electrical wiring installation of the devices and appliances should be car- ried out by qualified technicians in accordance with the regulations and laws in force. The manufacturer will not assume any responsibility for the use of products that must comply with special environmental and/or installation regulations; this obligation is the responsibility of and to the charge of the installer. '+:7371 before installing the product, disconnect the power supply. Supply voltage 230 V~ fan solenoid valve wire for setting the fan operating mode (continuous or thermostat- controlled).INSTALLATION INSTRUCTIONS

The setting wire must always be connected to terminal n° or terminal n° . #/<<371<2/+7-835-87<:8568./ the solenoid valve is always thermostat controlled. ,87<37=8=;0+789/:+<387 Connect the wire that comes out of the first hole of the thermostat terminal board (hole 1) to terminal n° . +$2/:68;<+<-87<:855/.0+789/:+<387 Connect the wire that comes out of the first hole of the thermostat terminal board (hole 1) to terminal n° . Wiring diagram for solenoid valve control and fan control with thermostat-controlled operation Wiring diagram for solenoid valve control and fan control with continuous fan operation

OPERATING INSTRUCTIONS CommaNDs aND s I g N a l s LED load state indicator: On = load on Fan speed switch Off Low Medium High Knob with temperature scale: 5°C to 30°C Reference mark for setting temperature Operating mode control switch:

Based on the devices connected (fan and/or solenoid valve) and the terminal (n° or n° ) to which the wire for the fan operating mode setting is connected, the ther- mostat can operate in the following modes:

1) thermostat-controlled solenoid valve and continuous fan operation (fig. )

2) thermostat-controlled solenoid valve and fan operation (fig. )

3) thermostat-controlled fan operation only and solenoid valve not connected (fig. )

In all cases, 3 different fan speeds can be selected by a switch on the front panel. /+<371 or -885371 mode can also be selected by a switch on the front panel. The thermostat operates with proportional temperature control, within a 1°C-band width, as shown in the figure. Regulation is carried out by switching the load on and off for variable time intervals, depen- ding on the difference between the temperature setpoint and the temperature reading. Example of thermostat installation with fan control only (continuous or thermostat-controlled) Time

Load Proportional band (width 1°C) Fig.  Example of thermostat installation with thermostat-controlled solenoid valve and fan control (continuous or thermostat-controlled) Fig.  Fan-coil Fan-coilThermostatThermostatThermostatThermostatFan-coil Fan-coil