Switching The Heat Pump On; Switching The Heat Pump Off; Without Interrupting The Power Supply; Shutdown (Without Frost Protection) - Viessmann VITOTRONIC SPS Operating Instructions Manual

Switching on and off

Switching the heat pump on

1. Switch ON the power supply, e.g. at a separate
MCB/fuse or a mains isolator.
2. Turn on the mains isolator.
The home screen is shown after a short time.
3. Tap on " Off ".
4. Use to select "Auto" mode and confirm with
.
The button switches to "

Switching the heat pump off

Without interrupting the power supply

■ The actual values of the sensors can still be scanned
■ Remote diagnosis/maintenance is possible
■ Frost protection remains active
1. Tap on " Auto ".

Shutdown (without frost protection)

Operate the system's mains isolator.
The power supply is interrupted.
Information on shutting down for longer periods
The circulation pumps may seize up.
■
The date and time may have to be reset.
■
22
Auto "
Notes
In automatic mode, the heat pump (or compressors)
does not start until the required conditions have been
fulfilled.
Certain pressure and temperature values must be
reached.
The oil sump heaters (if installed) must have been in
operation for 6 hours before a compressor start.
2. Use to select "Off" and confirm with
The button changes to "
!
Please note
There is no frost protection when the heat pump
is switched off. This can lead to equipment dam-
age.
Take appropriate measures at outside tempera-
tures below 3 °C to protect the heat pump and
your heating system from frost. If necessary,
contact your contractor.
.
Off "