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19. Inactivity
If the unit remains inactive for longer periods of time, it is necessary to drain any condensate
residue and carry out a general cleaning procedure.
18.3 REPLACEMENT OF PARTS
To guarantee continuity of service to the units, it is recommended to replace some components
according to their MTBF (medium time before failure).
You can find the MTBF of the most critical components in the following table:
COMPRESSOR: 30,000 operating hours
CONDENSER FAN:
35,000 operating hours
EVAPORATOR FAN:
40,000 operating hours
MECHANICAL THERMOSTAT:
100,000 cycles
COMPRESSOR RELAY:
200,000 cycles
NOTE: the MTBFs in the table above are referred to the time during which the components are
operating. The ratio between this time and the total time of service depends on the type of application,
except for the evaporator fan (operating time is 100% of total service time).
Example:
If you esteem that the compressor will be operating 60% of the total time, the MTBF will be 30,000
working hours / 0.6 = 50,000 hours.
18.4 HOW TO CLEAN THE UNIT
Do not use acid or caustic substances to clean any part of the air conditioner.
The inner parts of the cooling unit, either on the room or cabinet side, must be cleaned with a liquid
detergent and compressed air having a pressure not higher than 4 bar, with the unit properly earthed.
To clean the condenser remove the external lower grill and rinse with compressed air opposite to
the normal air flow direction through the heat exchanger.
Summary of Contents for CVC 07 001yy
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