Viessmann Vitocal 300-G Installation And Service Instructions Manual page 95

Power supply
(cont.)
Note
If the compressor and/or the instanta-
neous heating water heater are oper-
ated at a lower tariff (power-OFF),
provide an additional cable for the
switching contact "power-OFF" (e.g.
2
NYM 3x1.5 mm ) from the distribution
board (meter box) to the heat pump.
Size the cross-section of the power
supply lines in accordance with the
connected load of the relevant appli-
ance.
Control unit power supply
A Mains terminals inside the heat
pump
Installation sequence
A Control unit
Recommended power supply
2
cable: 3 x 1,5 mm
B Instantaneous heating water hea-
ter (accessories)
Recommended power supply
cable
9 kW: 5 x 2.5 mm
condition)
C Compressor
Recommended cable: 5 x 2.5 mm
Note
This supply must never be blocked.
Max. fuse rating 16 A
Standard tariff (no optional low tariff
with power-OFF)
2
(delivered
2
95