Viessmann VITOCAL 151-A Installation And Service Instructions Manual page 59

Power supply
(cont.)
Max. cable length: 30 m
■
■ Max. fuse rating 32 A
■ Standard tariff: No economy tariff with power-OFF
facility possible
Heat pump control unit power supply
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. 49
F2 Fuse 6.3 A H (slow)
■ 1/N/PE 230 V/50 Hz
■ Recommended power cable:
2
3 x 1.5 mm
With power-OFF 5 x 1.5 mm
Max. cable length: 50 m
■
171
N L N
AC
L1 L2 L3
136
r
3/N/PE 400 V/50 Hz
2
P1
L N
1
N N1 N2 N3
3x 1/N/PE 230 V/50 Hz
■ Max. fuse rating: 16 A
■ Standard tariff: No economy tariff with power-OFF
facility possible
Note
This supply must never be blocked.
Installation sequence
P2
L
136
r
59