Viessmann VITOCAL 151-A Installation And Service Instructions Manual page 61

Power supply
(cont.)
Power supply 230 V~
1 2 3 4 5 6 7 8 9 10 11 12 13 14
143
N
F2
L
40
1/N/PE
230 V/50 Hz
Fig. 51
Jumpers: Remove!
A
■ 3 x 1/N/PE 230 V/50 Hz
■ Recommended power cable:
7 x 2.5 mm 2
Compressor power supply: Outdoor unit 230 V~
Danger
Risk of explosion: Electrical components can
cause sparks which may be ignited by escaping
refrigerant.
Before inserting or removing the power supply
plug, isolate the system from the power supply
e.g. at the separate MCB/fuse or mains isolator.
Check that the system is no longer live.
171
N L N
AC
L1 L2 L3
136
r
3/N/PE 400 V/50 Hz
L1 L1 L1
P1
L N
1
N N1 N2 N3
3x 1/N/PE 230 V/50 Hz
N
A
■ Max. cable length: 25 m
■ Max. fuse rating: 16 A
■ Economy tariff and power-OFF can be applied
Installation sequence
P2
L
136
r
N N
61