Without Frost Protection Monitoring (Shutting Down The System) - Viessmann VITOCAL 222-G Operating Instructions Manual

Start-up/shutdown
Stopping the heat pump
Note
At temperatures below
frost protection of the heat pump, the
DHW cylinder and the heating water
buffer cylinder is only ensured if an
instantaneous heating water heater
(accessory) is installed.
Note
The circulation pumps are briefly started
every 24 hours to prevent them from
seizing up.
End operating program "Standby
mode"
Select another operating program.

Without frost protection monitoring (shutting down the system)

1. Switch the ON/OFF switch " "
OFF.
2. Isolate the heat pump from its main
power supply, e.g. at a separate
MCB/fuse or a main isolator.
3. If outside temperatures of below
3 °C are expected, please take
appropriate measures to protect the
heat pump and the heating system
from frost. If necessary, contact your
heating contractor.
Note
After an extended shutdown, it may be
necessary to reset the date and time
(see page 38).
16
(cont.)
Standard menu
− 20 °C, the
1. "Heating" or "Heating/cooling"
2. Select a heating/cooling circuit or the
separate cooling circuit (see
page 18).
3. "Operating program"
4. "Only DHW" (no central heating or
central cooling)
or
"Heating and DHW" (central heating
and DHW heating)
or
"Heating/cooling and DHW" (central
heating/cooling and DHW heating)