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4.2 I Maintenance
• Before any maintenance work on the appliance, you must cut the electricity supply as there is
a risk of electric shock which may cause material damage, serious injury or even death.
• It is recommended that the appliance undergo general servicing at least on a yearly basis to
ensure its proper operation, maintain performance levels and prevent any possible failures.
These operations are carried out at the user's expense, by a qualified technician.
4.2.1 User maintenance
•
Make sure that the ventilation grid is not blocked by any foreign bodies.
•
Clean any dirt off the fan blades and the protective grid,
•
Unplug the power cable and clean the evaporator (on the rear of the appliance) using a soft bristle brush and a low-
pressure jet of fresh water, being careful not to bend the metal fins.
•
Clean the condensate drainage line to remove any impurities that may be blocking it.
•
Do not use a high pressure jet. Do not spray with rain water, salt water or water which is full of minerals.
•
Clean the outside of the appliance using a solvent-free product; a specific "PAC NET" cleaning kit is available as an
accessory in the Zodiac® catalogue for this purpose (see § “1.1 I Description”).
4.2.2 Maintenance to be carried out by a qualified technician
•
Carry out an appliance’s annual sealing test.
•
Check that the high and low pressure switches are securely fastened to the cooling circuit and that they cut off the
electrical circuit when tripped.
•
Ensure there are no traces of corrosion or oil around the cooling components.
•
Check the composition and state of the heat transfer fluid as well as the absence of any traces of coolant.
•
Check that the control system is operating correctly.
•
Check that the condensates flow correctly when the appliance is in operation.
Compressor
•
Check the oil level using the indicator on the compressor.
•
Check that the crankcase heater is operating correctly.
•
Check the gas load (compressor properly cooled with circulating gas).
•
Check that consumption has not increased.
•
Check that the compressor discharge pressures are not too high and that the suction pressures are not too low.
•
Check that the compressor mountings are not damaged.
•
Check that there is no frost in the compressor.
Fan
•
Check the fan flows on an annual basis.
Electrical board
•
Check the electrical protection systems.
•
Check the connection of the metal masses to the earth.
•
Check that the electrical cables are correctly tightened and connected and that the switch box is clean.
•
Check that no overheating can be found in the electrical terminals.
•
Check that the thermostat or main control are operating correctly by comparing its reading with those of a mercury
thermometer (sensor calibration).
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