Operating instructions

32
Vitocal 242-G, 400 V~
X3.7
X3.6
C
B
A
H
D
F
E
5 43
3
44
3
3/N
3/N
≈
4
G
kWhkWh
Diagram excluding fuses and RCD.
A
Control unit (for connection to luster
terminals, see page 125)
B
Instantaneous heating water heater
(accessory)
C
Compressor
D
High tariff meter
E
Ripple control receiver (contact
open: power-OFF enabled)
F
Backup fuse ripple control receiver
G
TNC system feed
H
Low tariff meter
Installation sequence
Power supply
(cont.)
5441 603 GB