Repair Section
61
8.5 Basic Inspection
• Perform the following inspection before disassembly.
(1) Inspection of plate fins
• To inspect the plate fins of the evaporator, the
air filter must be removed. After removal of the
air filters, inspect the plate fins for any dirt,
dust, lint, or debris that may have caused
insufficient cooling performance of the unit. If
cleaning of the fins is necessary, it is
recommended that this service be performed
by a qualified service technician.
(2) Examination of operating environment
• Operating environments can vary depending on location, climate and surrounding conditions.
Installation location can also cause operational problems. Consult your reseller concerning
operational environment requirements.
(3) Inspection of cooling capacity performance
• Measure the difference in temperature
between the inlet of the evaporator and the
cool air vent. If the difference is out of the range
given in the graphs on page 10, proceed with
the remedy suggested in the troubleshooting
chart on page 53 to 58.
ILL00280-00
Room
Air Intake
Cool Air
Supply
(Evaporator)
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