452163.66.30 · FD 9801
EN-7
VWU 65 - VWU 80
English
3.3 Electrical connection
ATTENTION!
!!
Devices must always be disconnected from the power supply before
electrical work is carried out.
ATTENTION!
!!
Electrical wiring must only be carried out by authorised persons. The
applicable regulations must be observed.
Fig. 8:•Circuit diagram of four-way valve
Connection diagram:
We recommend installing the reversing valve as close to the heat
pump manager as possible. The 3-core electrical supply cable
(2xL/N) to the actuator should not exceed a maximum length of
40 m, with a single-core cross-section of at least 1 mm
²
.
The external 4-way valve (Y12) must be connected to digital out-
puts N17.2-J6/NO2 and N17.2-J6/NC2 and also on X2/N. The
outputs are marked in the circuit diagram (Fig. 9:•).
Fig. 9:•Circuit diagram
VWU
Heat pump manager (HPM)
L1
< = >
N 17.2 / J6-N02
L1
< = >
N 17.2 / J6-NC2
N
< = >
X2 / N
