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- replace or install a drier,
- perform the "vacuum operation" at a minimum level of 0.3 mbar (static).
Carry out the following operations at least once a year (the frequency depends on the installation
and operating conditions):
- check for any visible signs of damage.
- check for leaks on the refrigerating circuit.
- check for traces of corrosion or oil stains around the refrigerating components.
- inspect the composition and the condition of the coolant and check that it does not contain traces of
refrigerating fluid.
- remove debris from the evaporator and clean. Do not jet wash.
- check the operating instructions and points.
- check the safety devices: particularly check that the high and low-pressure controllers are properly
connected on the refrigerating circuit and that they disengage the electrical circuit if triggered.
- remove dust from the electrical equipment cabinet.
- check that the electrical connections are secure.
- check the earth connection (via an electrical test meter).
- check the hydraulic circuit (clean the filter, water quality, etc.. .).
- ensure no ingress of water into the controller.
- check for any mechanical wear on the fan.
- check the tightness and fit of the securing bolts.
- check for any signs of corrosion.
- check the general condition of the cabinet.
- check that the fan guards are in place.
- check the pH of the system water during servicing to determine whether inhibitor is present. Ensure
nothing is in the system that can promote galvanic action.
- check that all system safety devices are functioning correctly.
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