59
Power supply with power-OFF
Power-OFF without on-site load disconnection
The power-OFF signal is connected
directly to the heat pump control unit.
The compressor will be "forced" OFF
when the power-OFF is active.
Parameter
"Output for instant. heating
water heater at power-OFF 790A"
determines whether and at what stage
the instantaneous heating water heater
stays operational during a power-OFF
period.
Note
Observe the technical connection condi-
tions of the relevant power supply util-
ity.
X3.7
X3.6
3
3
4
4
3
3/N
3/N
≈
4
kWh
kWh
5
3
(400 V~)
7 (230 V~)
X3.18/X2.1/X1.1
Diagram excluding fuses and RCD.
A
Heat pump control unit (internal unit,
luster terminals, see chapter "Over-
view of connections: Internal unit")
B
Instantaneous heating water heater
C
Heat pump compressor (external
unit)
D
Heat pump control unit power sup-
ply: See chapter "Heat pump control
unit power supply 230 V~".
E
Premium 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.)
5546 699 GB
Installation
