54
Note
Observe the technical connection condi-
tions of the relevant power supply util-
ity.
X3.7
X3.6
C
B
A
H
F
E
5
4
3
3
4
4
3
3/N
3/N
4
G
kWh
kWh
D
K
Diagram excluding MCB/fuses and RCD
A
Heat pump control unit
B
Instantaneous heating water heater
C
Compressor
D
Heat pump control unit power sup-
ply
E
Standard tariff meter
F
Backup fuse ripple control receiver
G
Ripple control receiver (contact
open: power-OFF enabled) TNC
system feed
H
Economy tariff meter
K
Feed: TNC system
Power-OFF with on-site load disconnection
The power-OFF signal is connected to
the on-site contactor of the economy tar-
iff power supply and to the heat pump
control unit. The compressor
and
instan-
taneous heating water heater are
"forced" off when power-OFF is ena-
bled.
Note
Observe the technical connection condi-
tions of the relevant power supply util-
ity.
Installation sequence
Power supply
(cont.)
5516 436 GB