10.2 Checking operation of the appliance
This function is used to force the heat pump and back-up in heating or
cooling mode, in order to check that they are working correctly.
1. Access the Test menu by pressing the two keys on the left
simultaneously.
XX represents the flow temperature
2. Switch from C:XX heating to R:XX cooling mode using the and
keys.
3. Exit the Test menu and go back to the main display by pressing the
h
key.
10.3 Specific maintenance operations
10.3.1 Draining the heating circuit
1. Connect a hose (internal diameter: 8 mm) to the drain valve on the
heating circuit.
2. Open the drain valve.
3. Await the complete drainage of the heating circuit.
10.3.2 Cleaning the 500-µm filter
Clean the filters during the annual service.
1. Close the filter valve.
2. Unscrew the cover (24-mm spanner).
Fig.95
MW-5000132-5
Fig.96
MW-5000750-1
MW
-1
0
0
1
2
7
4
-1
1
2
Fig.97
MW-6000360-1
1
2
10 Maintenance
90
iHPI
7701563 - v02 - 22052018
