User manual

Start-up

Remove the old thermostat dial from your radiator valve.

• Rotate the thermostat dial to the maximum val-

ue (N) anti-clockwise (see ﬁgure 4). The thermo-

stat dial then no longer presses against the valve

spindle, making it easier to remove.

There are dierent ways of ﬁxing the position of the

thermostat dial:

• Union nut: Unscrew the union nut in an anti-

clockwise direction (O). The thermostat head

can then be removed (P).

• Snap-on fastenings: Thermostat dials that are

fastened this way can be detached by turn-

ing the fastener/union nut a little bit counter-

clockwise (O). The thermostat dial can then be

removed (P).

• Compression ﬁtting: The thermostat dial is

held in place by a mounting ring which is held

together with a screw. Loosen this screw and

remove the thermostat dial from the valve (P).

• Threaded connection with set screw: Loosen

the set screw and remove the thermostat dial (P).

After removing the old thermostat dial you can mount

the Homematic IP Radiator Thermostat with the metal

nut (A) to the radiator valve (see ﬁgure 6).

If required, you can use one of the supplied adapters for