6
Connection
• The power supply from the thermostat to the boiler is provided via OpenTherm.
• The two-wire connection (OpenTherm) is not polarised, i. e. the wires can be connected to
the boiler as required.
Heater
OT device connection
OT
6
5
Heater
0–10 V device connection
GND
0–10 V
+24 V
6
5
4
Do not feed the thermostat cable through
the same cable duct as the 230 V mains
cable.
Do not lay thermostat cable parallel to
power cable.
Disconnect the boiler from mains supply
before connecting the thermostat.
Faulty connections can damage the device.
24 V power supply must be SELV.
The bus cable can be extended to 50 m
without interference.
CAUTION!
