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10 Maintenance
10.1
Precautions to be taken before maintenance operations
10.2
List of inspection and maintenance operations
Tab.119 Checking the operation of the installation
Check
Heat pump and back-up in heating mode
Heat pump and back-up in cooling mode
User interface
Fault history
Operating time and number of start-ups for back-ups
Operating time and number of start-ups for compressor
Tab.120 Tightness tests
Check
Leak-tightness of the heating circuit
Leak-tightness of the DHW circuit
Leak-tightness of the hydraulic circuit separation circuit
Tab.121 Inspecting the safety devices
Check
Heating circuit safety valve
Expansion vessel
7756241 - v02 - 19062020
Important
Servicing shall be performed only as recommended by the
manufacturer.
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
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 hydraulic or electrical back-up if present.
Danger of electric shock
Check the discharge from the capacitors of the outdoor unit.
Operations to be carried out
Actuate the safety valve to check that it is operating correctly.
Check and adjust the inflation pressure. France: according to
DTU65.11.
10 Maintenance
MIT-M
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