Viessmann Vitocal 300-G Installation And Service Instructions Manual page 97

Power supply
(cont.)
Max. fuse rating 16 A
With enabled power-OFF (see also
page 83), the compressor is gener-
ally shut down mechanically and a
message is sent to the control unit.
The remaining output of the instan-
taneous heating water heater can,
in spite of the power-OFF, still be
selected in 3 stages via parameter
790A (see page 158).
Sealing the low tariff connection
A part of the contact shield (mains terminal cover) is used for sealing (see
page 91).
Note
The power supply utility can demand
that the low tariff connection is
sealed.
Installation sequence
Fit contact shield (see page 59
and 98) in front of the mains terminals
or seal the low tariff connection (see
the following chapter).
97