Electrical Connections - Viessmann BW 35 .AHT PW Series Installation And Service Instructions Manual

Casing ventilation
(cont.)
Position of refrigerant sensor
Fig. 27
Refrigerant sensor
A

Electrical connections

Routing cables to the heat pump wiring chamber
Danger
Damaged cable insulation can cause injury and
damage to the appliance.
Route cables so that they cannot touch very hot,
vibrating or sharp-edged components.
Danger
Incorrect wiring can lead to serious injury from
electrical current and result in appliance dam-
age.
■ Route LV leads < 50 V separately from cables
50 V/230 V~/400 V~.
>
■ Strip the cables of a small amount of insulation
close to the terminals and bundle tightly to the
corresponding terminals.
Secure cables with cable ties/strain relief fit-
■
tings.
This ensures that, in the event of a fault, e.g. if a
wire becomes detached, the wires cannot drift
into the adjacent voltage area.
When routing on-site power cables, observe the loca-
tion of the cable entries into the appliance through the
back panel (see page 17 onwards).
Installation sequence
33