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7. MAINTENANCE AND REPAIRS
7.1
Maintenance, servicing and winterizing
WARNING
that you have disconnected the electrical power supply.
Cleaning
The heat pump housing must be cleaned with a damp cloth. Using detergents or other household
cleaning products may degrade the surface of the housing and affect its integrity.
The evaporator at the rear of the heat pump must be carefully cleaned with a vacuum cleaner and
soft brush attachment.
Annual maintenance
The following operations must be undertaken by a qualified person at least once a year.
Carry out safety checks.
Check the integrity of the electrical wiring.
Check the earthing connections.
Wintering
Your heat pump is designed to operate in all weather. However, if you winterize your SPA, it is
not recommended to leave the heat pump outside for long periods of time (eg over winter). After
draining down the SPA for the winter, uninstall the heat pump and store it in a dry place.
7.2
Checking refrigerant pressure
The gauge is for monitoring the pressure of the refrigerant contained in the heat pump.
The values it indicates can vary considerably, depending on the climate, temperature and atmo-
spheric pressure.
When the heat pump is in operation:
The gauge's needle indicates the refrigerant pressure.
Mean operating range between 250 and 400 PSI (or about 1.7 to 2.7 MPa), depending on the
ambient temperature and atmospheric pressure.
When the heat pump is shut down:
The needle indicates the same value as the ambient temperature (within a few degrees) and the
corresponding atmospheric pressure (between 150 and 350 PSI maximum, or about 1 to 2.4 MPa).
If left unused for a long period of time:
Check the pressure gauge before starting up the heat pump. It must indicate at least 80 PSI (or
about 0.6 MPa).
If the pressure goes down too much, the heat pump will display an error message
and automatically go into 'safe' mode.
This means that there has been a leakage of refrigerant and that you must call a
qualified technician to replace it.
: Before undertaking maintenance work on the unit, ensure
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