Viessmann VITOCAL 200-G Installation And Service Instructions Manual page 58

Installation sequence
Power supply
Connection type BWC-M 201.A (230 V~)
A
D
E
kWh
1/N
F G
Diagram excluding fuses and RCD.
A Heat pump control unit
B Instantaneous heating water heater
(accessory)
C Compressor (fan is directly linked to
the compressor power supply)
D Power supply, control unit
E Mains isolator
Phase monitor (if installed)
The phase monitor is used to monitor the
mains power supply to the compressor.
58
(cont.)
X3.7
X3.6
3
≈
K
C
B
7
kWh
1/N
H
F High tariff meter
G Ripple control receiver (contact
open: power-OFF enabled) with
backup fuse
H Economy tariff meter
K TNC system feed
The phase monitor switches off (switch-
ing contact opens) if the internal toleran-
ces are exceeded.
3