Viessmann Vitocal 222-S Installation And Service Instructions For Contractors page 53

Power supply
(cont.)
1/N/PE 230 V/50 Hz
L3
A
L1
Fig. 50
Mains terminals, switching module, instantaneous
A
heating water heater
Jumpers
B
Remove both jumpers B
230 V/50 Hz power supply.
■ Recommended power cable:
7 x 2.5 mm 2
Max. fuse rating 16 A
■
Economy tariff and power-OFF can be applied
■
3/N/PE 400 V/50 Hz
L3
A
L3
Fig. 51
Mains terminals, switching module, instantaneous
A
heating water heater
Jumpers
B
L2 L1 N3 N2 N1
L1 L1 N N N
in the case of a 1/N/PE
L2 L1 N3 N2 N1
L2 L1 N
B
B
Installation sequence
53