37
Compressor power supply 400 V~
L1
400 V/50 Hz
?
L2
L3
N
PE
3/N/PE
L1
L2
L3
N
Fig. 23
■
Economy tariff and power-OFF can be used
■
No parameters need to be set when using economy
tariff with power-OFF. The compressor is shut down
during the power-OFF time.
Type
Recommended power cable
Fuse protection
Cable
Max. cable length
■
BW
■
BWS
351.B20
5 x 2.5 mm
2
50 m C25A, 3-pole
351.B27
5 x 4.0 mm
2
50 m C32A, 3-pole
351.B33
5 x 4.0 mm
2
50 m C32A, 3-pole
351.B42
5 x 6.0 mm
2
50 m C40A, 3-pole
Power supply with power-OFF: Without on-site load disconnect
The power-OFF signal is connected directly to the heat
pump control unit. When power-OFF is enabled, the
compressor is "forced" off; in the 2-stage version (type
BW + BWS),
both
compressors are switched off.
Parameter
"Output for instant. heating water heater
at power-OFF 790A"
determines whether and at what
stage an instantaneous heating water heater (if instal-
led) remains operational during power-OFF.
"Vitotronic 200 heat pump control unit" service
instructions
Note
Observe the technical connection conditions of the rel-
evant power supply utility.
Installation sequence
Power supply
(cont.)
5855006
Installation
