Closing The Heat Pump - Viessmann BW 35 .AHT PW Series Installation And Service Instructions Manual

Fitting the shaft and dial for the ON/OFF switch and installing the programming unit
Note
The shaft and dial for the ON/OFF switch as well as
the programming unit are delivered inside the wiring
chamber of the heat pump. Only fit the programming
unit after all electrical connections have been made.
1.
2.
0 / Off
Fig. 34
3. Position the front panel tightly against the front of
the heat pump.
Route the data cable through the opening and con-
nect it to the programming unit.
Click the programming unit into place in the open-
ing and check for firm seating.
Securely lean the front panel against the heat
pump.

Closing the heat pump

Danger
The absence of component earthing can result
in serious injury from electrical current and in
component damage in the event of an electrical
fault.
Restore all earth connections.
!
Please note
Leaking hydraulic connections lead to appliance
damage.
■ Check the internal hydraulic connections for
tightness.
3.
4.
!
Please note
If a casing door is not securely closed this can
lead to damage from condensation, vibrations
and excessive noise.
Seal the appliance so it is soundproof and diffu-
sion-proof.
Prior to closing the heat pump, check the following:
■ Are all cables inside the wiring chamber sufficiently
secured (strain relief, cable ties)?
■ Has the programming unit been fitted and connec-
ted?
Have all earth conductors been fitted?
■
Have all cable entries been correctly applied and
■
sealed against moisture ingress?
Installation sequence
45