Installation manual

Coopra Advanced Heating Technologies Installation manual 40 EN

3.5.2. Modulating room thermostat (if applicable).

Connect to terminals (1) and (2)

The modulating room thermostat must be fitted in the same

building as the unit.

Strip about 5 mm off the insulation of the wires of the room

thermostat. Stick the stripped ends of the wires into

connections (1) and (2) of the connection block. Make sure

that the wires do not make a short circuit. Firmly tighten the

screws in the connection block.

When using a modulating thermostat, the plug on the printed

circuit board must be connected with the correct polarity.

To reach the printed circuit board, the black casing must be

opened. Connect the plug for the relevant modulating space

unit to terminal a, b or c, according to the following

photograph.

a White

Connection for an on/off

room thermostat

24 Volt

b Red

Connection for RS30 with

Coopra protocol

EBV space

regulation

c Blue Opentherm connection

Honeywell or TEM

space regulation

3.5.3. Connection for the external temperature sensor (if

applicable).

Connect to terminals (3) and (4)

If an external sensor is connected, this temperature sensor

must be an NTC with a resistance of 12 kOhm at 25°C.

Strip about 5 mm off the insulation of the wires of the sensor.

Stick the stripped ends of the wires into connections (3) and

(4) of the connection block, see figure 8. Make sure that the

wires do not make a short circuit. Firmly tighten the screws in

the connection block.

If an external sensor is not used, terminals (3) en (4) can

remain open.

3.6. Assembling the connection block

Connect the green connection

block in the green socket.

3.7. Placing the jacket

Place the jacket in the appropriate hooks at the top of the unit.

Let the jacket pivot until it falls over the unit. Tighten the

fastener at the bottom of the jacket.