58
Parameter
"Output for instant. heating
water heater at power-OFF 790A"
determines whether and at what stage
an instantaneous heating water heater (if
installed) remains operational during
power-OFF.
Note
Observe the technical connection
requirements of the relevant power sup-
ply utility.
X3.7
X3.6
C
B
A
H
D
F
G
3
3
4
4
3
3/N
3/N
≈
4
K
kWh
kWh
5
3
(400 V~)
7 (230 V~)
X40
E
Diagram excluding fuses and RCD
A
Heat pump control unit (internal unit,
luster terminals, see page 39)
B
Instantaneous heating water heater
(if installed)
C
Heat pump compressor (external
unit)
D
Heat pump control unit power sup-
ply (see page 55)
E
High tariff meter
F
Backup fuse ripple control receiver
G
Ripple control receiver (contact
open: power-OFF enabled), feed:
TNC system
H
Economy tariff meter
K
Feed: TNC system
Installation sequence
Power supply
(cont.)
5601 429 GB