43
Power supply with power-OFF: With on-site load disconnect
The power-OFF signal is connected to the on-site con-
tactor of the economy tariff power supply and to the
heat pump control unit. The compressor
and
instanta-
neous heating water heater are "forced" off when
power-OFF is enabled.
Note
Observe the technical connection conditions of the rel-
evant power supply utility.
C
B
≈
H
D
5
5
3
4
4
3
3/N
3/N
G
E
4
kWh
kWh
3
K
X3.7
X3.6
X40
A
F
Fig. 33
Diagram excluding fuses and RCD
A
Heat pump control unit
B
Instantaneous heating water heater
C
Compressor
D
Economy tariff meter
E
Feed: TNC system
F
Backup fuse, ripple control receiver
G
Ripple control receiver (contact open: Power-OFF
enabled)
H
Premium tariff meter
K
Mains isolator
Installation sequence
Power supply
(cont.)
6153640
Installation
