37
External heat pump
F
E
A
C
B
¨
E
Fig. 32
A
Sealing mat (for cable entry from below)
B
Mains terminals
C
Power cable 400 V~ with cable fitting
E
Cable bracket (cables secured with cable ties)
F
Connecting cables with plugs: LV lead (< 42 V)
and control cable (230 V~) from the heat pump
control unit
1. Internal heat pump
:
Route the 230 V cables through one cable entry,
and the LV lead through the other cable entry in
the l.h. or r.h. side panel.
External heat pump
:
Cut one entry in the sealing mat for the 230 V
cables and a second entry for the LV lead. Route
the cables from below through the sealing mat.
2.
Route the cables through the prefitted retainers.
Secure the LV lead and 230 V cables separately.
3.
Secure the cables below the front edge of the con-
trol panel with a loop (see previous diagram) to the
cable bracket.
4.
Push the connecting lead/cables (LV lead < 42 V
and control cable 230 V~) from the heat pump con-
trol unit into the corresponding plug-in connections
on the distributor PCB inside the control panel.
5.
Route 400 V~ power cable through cable fitting
and apply strain relief. Carry out the mains connec-
tion according to page 58.
Note
The 400 V~ power supply is protected against
accidental contact with a contact shield. This con-
tact shield can be sealed for power-OFF (if
required).
Installation sequence
Control panel electrical connections
(cont.)
5692878
Installation
Summary of Contents for Vitocal 350-A AWHI 351.A14
Page 82: ...82 Troubleshooting Repairs cont 5692878 Maintenance ...
Page 101: ...101 Parts list type AWHI 351 A Heat pump module cont 5692878 Components ...
Page 104: ...104 Parts list type AWHI 351 A Base frame cont 5692878 Components ...
Page 125: ...125 Parts list type AWHO 351 A Heat pump module cont 5692878 Components ...
