100
Heat pump control unit power supply (230 V~)
L1
X3.18
N
X2.1
?
X1.1
A
1/N/PE
230 V / 50 Hz
max.16 A
A
Mains terminals inside the heat
pump control unit
Note
This supply must never be blocked.
■ Max. fuse rating 16 A
■ Standard tariff (no optional economy
tariff with power-OFF for the heat
pump control unit)
■ Recommended cable: 3 x 1.5 mm
2
(5 x 1.5 mm
2
with power-OFF for the
compressor/instantaneous heating
water heater)
Compressor power supply (400 V~)
L1
L2
L3
L1
L2
L3
N
■ Fuse protection in accordance with the
compressor output (see specification).
■ Low tariff and power-OFF can be
used.
■ No parameters need to be set when
using economy tariff with power-OFF
facility. The compressor is shut down
during the power-OFF period.
■ Recommended power cable:
5 x 2.5 mm
2
Max. cable length:
50 m
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.
When power-OFF is enabled, the com-
pressor is "forced" off, and in the 2-stage
version (type BW + BWS),
both
com-
pressors 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
installed) remains operational during
power-OFF.
Service instructions for
"Vitotronic 200 heat pump control
unit"
Installation sequence
Power supply
(cont.)
5609 667 GB
