Trane RAU-SVX01B-E4, Установка, эксплуатация и обслуживание

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17 RAU-SVX01B-E4
D) The compressor keeps running
without stopping
Temperature too high in areas
requiring air-conditioning.
E) Loss of oil in compressor
Oil level too low in indicator.
Gradual fall in oil level.
Suction line too cold.
Compressor noisy
F) Compressor noisy
Compressor knocks.
Suction line abnormally cold.
G) Insufficient cooling capacity
Thermostatic expansion valve
”whistles”.
Excess pressure drops through filter
drier.
Excessive superheat.
H) Discharge pressure too high
Condenser abnormally hot.
Condenser air output too hot.
Excess load on cooling system.
Not enough oil.
Filter drier clogged.
Liquid flows back to compressor.
Components broken in compressor.
a) Uneven liquid flow.
b) Expansion valve locked in open
position.
Not enough refrigerant.
Drier filter clogged.
Superheat not properly adjusted.
Presence of uncondensable liquids in
system, or excess refrigerant.
Reduced air flow. Air intake
temperature higher than specified for
unit.
Check thermal insulation and air-
tightness of areas requiring
air-conditioning.
Contact Trane office before to order oil
Replace filter drier.
Adjust superheat and check bulb fixing
of the expansion valve.
Change compressor.
a) Check superheat setting and fixing
of expansion valve bulb.
b) Repair or replace.
Check refrigerant circuit tightness and
add refrigerant.
Replace.
Check adjustment of superheat and
adjust thermostatic expansion valve.
Purge uncondensable fluids and drain
off excess refrigerant.
Clean battery.
Check operation of motor fans.
Problems symptoms Problem cause Action recommended