10 Maintenance
10.1 Standard inspection and maintenance operations
Caution
Only qualified professionals are authorised to carry out
maintenance work on the heat pump and the heating system.
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.
Danger of electric shock
Before any work, switch off the mains electricity to the heat pump
and the electrical back-up if present.
Danger of electric shock
Check the discharge from the capacitors of the outdoor unit.
An annual inspection with a leak-tightness check in accordance with
prevailing standards is obligatory.
Maintenance operations are important for the following reasons:
To guarantee optimum performance.
To extend the life of the equipment.
To provide an installation which offers the user optimum comfort over
time.
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.
1. Check the leak-tightness of the refrigerant circuit using a sniffer leak
detector.
2. Check the operation of the user interface.
10.1.1 Checking the safety components
1. Check that the safety components are operating correctly, particularly
the safety valve on the heating circuit.
2. Check the electrical connections.
3. Change any and all parts and cables considered defective.
4. Check all screws and nuts (cover, support, etc.).
5. Change damaged sections of lagging.
10.1.2 Check the hydraulic pressure
The hydraulic pressure must be at least 0.8 bar. Recommended pressure:
1.5 to 2 bar.
1. Check the hydraulic pressure in the installation shown alternately on
the control panel main screen.
2. If the hydraulic pressure is too low, top up the water.
10.1.3 Cleaning the casing
1. Clean the outside of the appliance using a damp cloth and a mild
detergent.
10 Maintenance
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