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Technical Notice CSO/CPO V1.1 / 10.14
8 Tuning and maintenance
8.2.6
Annual maintenance
Cut off the electrical power at machine cabinet.
A.
Check the exhaust fan motor bearings.
B.
If necessary, replace the bearings.
C.
Clean the exhaust fan blades.
Proceed with a visual inspection of all the components (cabling and capillaries included) to make sure
that none of the components are broken, damaged, ice-encrusted or fouled (exhaust fan, condenser).
Due to a lack of gas, or operation of the unit at an evaporation temperature which is too low, the
heat exchangers can become ice-encrusted. When this happens, the time to "defrost" the unit
may take several hours.
D.
Inside the unit, visually check the connections and pipes in the refrigeration circuit.
Traces of oil may indicate a gas leak.
E.
Visually check all the connections and pipes in the hydraulic circuit.
Traces of oil may indicate a loss of tightness.
F.
Restart the unit by switching it back on.
