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12.2
Checking operation of the appliance
12.3
Cleaning the casing
12.4
Replacing the user interface battery
7856310 - v02 - 21122023
Caution
Only qualified professionals are authorised to carry out
maintenance work on the heat pump and the heating system.
Danger of electric shock
Before any work, switch off the power supply to the heat pump
and the backup boiler or the heating element, if present.
Danger of electric shock
Do not perform work when the red LED is lit. The LED remains lit
for a minute after having switched off the circuit breaker.
Check the discharge from the capacitors of the outdoor unit.
Caution
Before working on the refrigeration circuit, switch off the appliance
and wait a few minutes. Certain items of equipment such as the
compressor and the pipes can reach temperatures in excess of
100 °C and high pressures, which may cause serious injuries. It is
also recommended to wear protective gloves and goggles before
carrying out any work on the refrigerant circuit.
Important
When breaking into the refrigerant circuit to make repairs – or for
any other purpose – remove the refrigerant. Recover the
refrigerant into the correct recovery cylinders.
Caution
Do not drain the installation, except in cases of absolute
necessity. E.g.: several months' absence with the risk of
temperatures in the building falling below freezing.
Important
Maintenance must be performed as recommended by the
manufacturer.
Replace any damaged component.
You can force the heating or cooling mode for the heat pump and backup
in order to check that they are working correctly.
1. Press the
button.
2. Select Commissioning Menu.
On
3. Select Load Test.
4. Select the operating mode for which you would like to see the
information. Off, Load test CH max or Control unit Cooling.
1. Clean the outside of the appliance using a damp cloth and a mild
detergent.
If the indoor unit is switched off, the user interface battery takes over to
keep the correct time.
The battery must be replaced when the time is no longer saved.
1. Remove the front panel.
12 Maintenance
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