2. Installation instructions
The thermostat is designed for flush mounting in the room to be controlled.
It should be located where the occupant can easily read the LCD display and use the controls.
If the built in temperature sensor is being used the unit should be placed where the temperature is representative
of the general room conditions.
Cold or warm air draughts; radiant heat and direct sunlight should be avoided.
The standard height to install this unit is 1.5 meter (5 feet) from the floor.
Installation procedure:
1. Disconnect power to the unit.
2. Connect the wires as shown in the enclosed wiring diagram.
All terminals accept 1x0.5mm
2
/24 AWG.
3. If needed, change DIP switches position.
4. Install the panel in the electrical box (Gewiss Box - GW 24 203).
5. Tighten up the 2 screws.
6. Adapt the front frame-panel into its place, by pushing it towards the wall.
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3. Wiring connections
Heat valve (0.5A)
Cool valve (0.5A)
RE
HE
One valve (0.5A)
RE
HE
RE
HE
*For IN1,0 configuration please refer to the technician settings parameters 6.9-6.11.
Risk of Electric Shock and Property Damage. Disconnect each of multiple power supplies before
making electrical connections. Contact with components carrying hazardous voltage can cause
electric shock and may result in severe personal injury or death.
The integrated circuits in the controller are sensitive to static currents.
Take suitable precautions.
3
1
N
2
L
High
Medium
Low
Fan (2.6A)
Fan Coil 4-Pipe configuration
RE
HE
Main supply
110~230VAC
Fan Coil 2-Pipe configuration
AC – Heat-Cool configuration (HC)
0
T1
0
IN1
External sensor (option)
change over
sensor (T2)
Remote
OFF switch
Remote
economy switch
(or)
(or)
Important: In 2-Pipe configuration,
terminals HE and RE must be jumpered!
Heat element (0.5A)
Compressor (0.5A)
