Starting And Stopping The Heat Pump; Starting The Heat Pump; Shutting Down The Heat Pump; Switching The Central Heating On/Off - DeDietrich HPI S User Manual

Icon Information
DHW tank
Outdoor temperature
4.2

Starting and stopping the heat pump

4.3

Switching the central heating on/off

4.4

Periods of absence or going on holiday

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Description of the icon
Temperature display for the domestic hot water
Outdoor temperature display
4.2.1

Starting the heat pump

1. Switch on the outdoor unit and the indoor unit.
The heat pump will begin an automatic vent programme (which lasts
approx. three minutes), run each time the power is switched on. If
there is a problem, an error message is displayed on the home
screen.
2. If an error message is displayed on the home screen, contact the
installer.
3. Check the hydraulic pressure in the installation indicated on the user
interface.
Important
Recommended hydraulic pressure between 1.5 and 2.0 bar.
4.2.2

Shutting down the heat pump

The heat pump must be shut down in certain situations, for example
during any intervention on the equipment. In other situations, such as an
extended absence period, we recommend that the Holiday operating
mode is used in order to benefit from the heat pump anti-blocking function
and to protect the installation from frost.
To shut down the heat pump:
1. Switch off the outdoor unit and the indoor module.
Your appliance will automatically deactivate the heating function and
switch to cooling mode when the temperature exceeds 22 °C (factory
setting). However, you can manually switch off the heating function for all
circuits to save energy during the summer period, for example.
Important
If the heating function is shut off, then the cooling will also be shut
off.
1. Select the Air Src Heat pump icon.
23.5
2. Select CH function on.
3. Select the desired value:
Off to stop the heating function.
On to switch the heating function on again.
If you will be absent for several weeks, you can reduce the room
temperature and domestic hot water temperature in order to save energy.
To do this, activate the Holiday operating mode for all zones, including for
domestic hot water.
1. Select the Holiday Mode icon.
4 Operation
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