Viessmann VITOCAL 151-A - Switching On and Off; Shutting Down the Heat Pump; With Frost Protection; Without Frost Protection Monitoring (Shutting Down the System)

45
With frost protection
You have the options of switching off the individual
heating/cooling circuits, or the complete system.
Tap the following buttons:
1.
2. "Switch on/off"
3. You wish to switch off the heating/cooling circuits
individually: Tap for "Standby mode".
You wish to switch off the DHW heating: Tap for
"Off".
You wish to switch off the entire system: Tap for
"Off".
Note
■
All circulation pumps connected to the control unit
are briefly started every 24 hours to prevent them
from seizing up.
■
The diverter valves are switched over at regular
intervals.
Without frost protection monitoring (shutting down the system)
You wish to shut down the system without frost protec-
tion monitoring.
Turn off the ON/OFF switch: See chapter "Position of
the ON/OFF switch".
■
No room heating
■
No room cooling
■
No DHW heating
■
Frost protection for the heat generator and the DHW
cylinder is not enabled.
!
Please note
If outside temperatures below 3 °C are expec-
ted, take appropriate measures to protect the
heat pump and the heating system from frost.
Contact your heating contractor.
Note
■
As they are not being supplied with power, the circu-
lation pumps and diverter valves may seize up.
■
If your system has been shut down for a prolonged
period, you must reset the "Time" and "Date": See
page 36.
Starting the heat pump
Turn on the ON/OFF switch: See chapter "Position of
the ON/OFF switch".
■
After a short while, the home screen is shown on the
display.
■
The Lightguide is illuminated constantly.
Your heat pump and remote control units (if available)
are now ready for operation.
Position of the ON/OFF switch
Wall mounted indoor unit
ON/OFF switch A
is located on the underside of the
indoor unit.
Switching on and off
Shutting down the heat pump
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