Operating instructions

35
G
Ripple control receiver (contact
open: power-OFF enabled)
H
Low tariff meter
K
TNC system feed
Vitocal 242-G, 230 V~
X3.7
X3.6
C
B
A
≈
F H
7
3
1/N
1/N
G
K
kWh
kWh
3
E
D
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
Control unit power supply
E
Main isolator
F
High tariff meter
G
Ripple control receiver (contact
open: power-OFF enabled)
H
Low tariff meter
K
TNC system feed
Installation sequence
Power supply
(cont.)
5441 603 GB
Installation