61
External unit power supply (230 V~)
Vitocal 222-S, type AWT-AC
221.A04
221.A07
221.A10 and A13
?
C N L
?
B
L1
N
A
COM
Ni
?
Li
N
0
L
0
B
?
N L1
A
?
?
N L
?
N L
C2 C1
B
?
N L1
A
A
External unit wiring chamber (see
page 57)
B
Power supply 230 V/50 Hz
Vitocal 222-S, type
AWT-AC
221.A04
221.A07
221.A10
221.A13
Recommended power
cable
3 x 2.5 mm
2
3 x 2.5 mm
2
3 x 2.5 mm
2
(max. 16 m)
3 x 4.0 mm
2
(max. 20 m)
or
3 x 4.0 mm
2
(max. 26 m)
3 x 6.0 mm
2
(max. 30 m)
Fuse protection
B20 A
B20 A
B25 A
B32 A
■ 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 period.
■ During power-OFF, the diagnostic
functions for the external unit are not
supported.
Note
Free terminals for internal use.
Installation sequence
Power supply
(cont.)
5600 950 GB
Installation