McQuay MLCV Especificaciones Pagina 142

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218
Satisfactory operation with temperature difference of air intake & discharge of indoor unit
14°C to 20°C. *
( * value is for reference only )
Restricted
Insufficient heating
Air
circulation
Indoor / outdoor coil dirty
(clogged)
Indoor air filter dirty
Clean the coil
Clean the filter
Fan motor malfunction
Obstruction at air inlet /
outlet of indoor / outdoor
unit
Change or repair the motor
Remove the obstruction
High heating
load
Windows / doors wide
open
Close the windows / doors
Refrigerant
circuit
Restriction e.g. at
strainer, capillary, filter
dryer, etc.
Refrigerant short charge
or refrigerant leakage
Add refrigerant. Repair leakage if detected
Repair clogging or replace faulty components
Compressor
Less or no compression
(Low running current)
Replace compressor
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