McQuay M5LCX Especificaciones descargar pdf (Pagina 41)

By means of diagnostic flow chart:

Generally, there are two kinds of problems, i.e. starting failure and insufficient cooling/heating. “Starting failure”

is caused by electrical defect while improper application or defects in refrigerant circuit causes “Insufficient

cooling / heating”.

i) Diagnosis of Electric Circuit

The most common causes of air conditioner failure to “start” are :

a) Voltage not within ±10% of rated voltage.

b) Power supply interrupted.

c) Improper control settings.

d) Air conditioner is disconnected from main power source.

e) Fuse blown or circuit breaker off.

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McQuay M5LCX Especificaciones Pagina 41