McQuay M5LCX Especificaciones Pagina 117

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116
M5LCX-2009
Troubleshooting
ii ) Diagnosis of Refrigerant Circuit / Application
There might be some causes where the unit starts running but does not perform satisfactorily, i.e. insufcient
cooling. Judgement could be made by measuring temperature difference of indoor unit’s intake and discharge
air as well as running current.
Clean The Coil
Insufficient Cooling
Air Circulation
High Cooling Load
Refrigerant Circuit
Compressor
Restricted
..................................................
................................................
Clean The Filter
Change Or Repair The Motor
................................................
...........................
Remove The Obstruction
.................................
Remove Or Reduce Heat Source
....................
Clode The Windows/Doors
...............................
Add Refrigerant. Repair
Leakage if detected
....................................
Repair Clogging Or Replace
Faulty Components
............................
Repair Compressor
..........................................
Reduce Number Of People
In The Room
.............................
: Faulty : Check : Cause : Remedy
Indoor/Outdoor Coil Dirty
(Clogged)
Indoor Air Filter Dirty
Fan Motor Malfunction
Excessive Heat Source
E.g. Electric Kettle
Refrigerant Short Charge
Or Rerigerant Leaking
Restriction e.g. At Strainer,
Capillary, Filter Dryer, etc.
Less Or No Compression
(Low Running Current)
Windows/Doors Wide Open
Room Overcrowded With People
Obstruction At Air Inlet/Outlet
Of Indoor/Outdoor Unit
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