Mains voltage:
■ The heat pumps operate with 230 V~ or 400 V~, depending on
type:
Vitocal 200-A
Type Compressor
230 V~ 400 V~
AWO-M 201.A
AWO-M-E 201.A
AWO-M-E-AC 201.A
X
AWO 201.A
AWO-E 201.A
AWO-E-AC 201.A
X
Vitocal 222-A
Type Compressor
230 V~ 400 V~
AWOT-M-E 221.A
AWOT-M-E-AC 221.A
X
AWOT-E 221.A
AWOT-E-AC 221.A
X
The fan fuse/MCB is located in the outdoor unit.
■ The instantaneous heating water heater (if installed) is operated at
400 V~ (or 230 V~). The instantaneous heating water heater is
located in the indoor unit.
■ The control circuit requires a power supply of 230 V~. The control
circuit fuse (6.3 A) is located in the heat pump control unit in the
indoor unit.
Power-OFF
It is possible for the power supply utility to shut down the compressor
and instantaneous heating water heater (if installed). The ability to
carry out such a shutdown may be a power supply utility requirement
for providing a lower tariff.
This must not shut off the power supply to the Vitotronic control unit.
Wiring diagram
Vitocal 200-A
Vitocal 222-A
A
Outside temperature sensor, sensor lead: 2 x 0.75 mm
2
B
Outdoor unit
C
Compressor power cable, 230 V~ or 400 V~: See the following
table
D
Bus cable indoor/outdoor unit (3 x 0.75 mm
2
)
E
Indoor unit
F
Instantaneous heating water heater
G
Power cable for instantaneous heating water heater: See follow-
ing table.
H
Power cable for heat pump control unit: See following table.
K
Electricity meter/mains
L
Circulation pump for cylinder heating
M
DHW cylinder
N
Cylinder temperature sensor, sensor lead: 2 x 0.34 mm
2
Note
For heating water buffer cylinder, heating circuit with mixer, external
heat generator (gas/oil/wood etc.), allow for additional supply lines,
control cables and sensor leads.
Check the core cross-section of the power cables and enlarge if
required.
Design information
(cont.)
VITOCAL
VIESMANN
109
5831388
7
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