53
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
Fig. 46
Diagram excluding fuses and RCD
A
Heat pump control unit (indoor unit, luster termi-
nals: See chapter "Indoor unit: Overview of con-
nections")
B
Instantaneous heating water heater (if installed)
C
Heat pump compressor (outdoor unit)
D
Heat pump control unit power supply: See chapter
"Heat pump control unit power supply 230 V~"
E
Premium tariff meter
F
Ripple control receiver backup fuse
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.)
5831412
Installation