HomeMatic IP HmIP-eTRV-E Notice D'installation Et D'emploi page 24

Start-up
Figure 5
The thermostatic head may be held in
place in various ways:
• Union nut: Unscrew the union nut
in an anticlockwise direction (2).
The thermostat head can then be
removed (3).
• Snap-on fastenings: Thermostatic
heads that are fastened this way
can be detached by turning the
fastener/union nut anticlockwise
a little. The thermostatic head can
then be removed.
• Compression fitting: The thermo-
static head is held in place by a
mounting ring, which is held to-
gether with a screw. Loosen this
screw and remove the thermostatic
head from the valve.
• Threaded connection with set
screw: Loosen the set screw and
remove the thermostatic head.
6.2.2 Mounting the radiator
thermostat
After removing the old thermostatic
head, you can mount the new radiator
thermostat on the heating valve:
• Place the radiator thermostat with
the metal nut (A) on the heating
valve.
2
1
3
Figure 6
• Tighten the metal nut on the heat-
ing valve.
Figure 7
To make installation easier, you
can take the batteries out of the
battery compartment (C) and
press and hold the button in the
battery compartment while you
are tightening the metal nut on
the heating valve. Pressing this
button blocks the rotating mecha-
nism in the radiator thermostat,
making it easier to move the dis-
play to your chosen position.
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