65
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 (if instal-
led) are "forced" off when power-OFF is
enabled.
Note
Observe the technical connection
requirements of the relevant power sup-
ply utility.
C
B
≈
E
H
3
3
4
4
3
3/N
3/N
G
K
4
kWh
kWh
3
L
D
7
5 (400 V~)
(230 V~)
X3.7
X3.6
A
X40
F
Diagram excluding fuses and RCD
A
Heat pump control unit (internal unit,
luster terminals, see page 45)
B
Instantaneous heating water heater
(if installed)
C
Heat pump compressor (external
unit)
D
Heat pump control unit power sup-
ply (see page 61)
E
Standard tariff meter
F
Backup fuse ripple control receiver
G
Ripple control receiver (contact
open: power-OFF enabled) with
backup fuse
H
Economy tariff meter
K
Feed: TNC system
L
Mains isolator
Installation sequence
Power supply
(cont.)
5604 692 GB
Installation
