Page 72 / 100 Technical Notice V1.0 / 01.09
11 Tuning and maintenance
11.2.6 Annual maintenance
Cut the power supply on the outside of the machine.
A. Check the exhaust fan motor bearings.
B. If need be, replace the bearings.
C. Clean the exhaust fan blades.
Start with a visual inspection of all of the components (cabling and capillaries included) in order to be
sure that noen of the components are either 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 water may indicate a loss of waterproofness.
F. Restart the unit by switching it back on.
To Next Page
Loading...
