Viessmann Vitocal 300-G BW, Installation And Service Instructions Manual

Page: 89 / 216

89
5. Guide the power cables through
cable retainer
E
to the following ter-
minals:
A
Control unit mains terminals
B
Compressor mains terminals
D Control module for the instanta-
neous heating water heater with
mains terminals (accessory)
6. Bundle and secure the power cables
with the cable ties supplied and make
the connections.
Power supply with power-OFF (without on-site load disconnect-
ing switch)
Connection of the power-OFF signal immediately in the control unit (with recognition
on the software side): Mechanical compressor shutdown through the power-OFF
contact in the control unit. Observe the technical connection conditions of the relevant
power supply utility. The way the instantaneous heating water heater shuts down can
be determined via parameter 790A (see page 152).
Installation sequence
Power supply
(cont.)
5368 522 UAE
Installation