Panasonic CS-UW12GKE Spécifications Page 54

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54
Conditionoftheair
conditioner
Insufficientrefrigerant
(gasleakage)
Cloggedcapillary
tube
Shortcircuitinthe
indoorunit
Heatradiationdeficiency
oftheoutdoorunit
Insufficient
compression
Coolingmode
Lowpressure
Highpressure
Electriccurrent
duringoperation
12.2.Relationshipbetweentheconditionofairconditionerandpressrue
andelectriccurrent
12.3.Diagnosismethodsofamalfunctionofacompressor.
Natureoffault
Insufficientcompressing
ofacompressor
Lockedcompressor
Symptom
Electriccurrentduringoperationbecomesapproximately80%lower
thanthenormallevel.
Thedischargetubeofthecompressorbecomesabnormallyhot
(normally70~90).
Thedifferencebetweenhighpressureandlowpressurebecomes
almostzero.
Electriccurrentreachesahighlevelabnormally,andthevalueexceeds
thelimitofanammeter.Insomecases,abreakerturnsoff.
Thecompressorhasahummingsound.
Inefficientswitchesof
the4-wayvalves
Electriccurrentduringoperationbecomesapproximately20%lowerthan
thenormalvalve.
Thetemperaturedifferencebetweenfromthedischargetubetothe4-way
valveandfromsuctiontubetothe4-wayvalvebecomesalmostzero.
Lowpressure
Highpressure
Electriccurrent
duringoperation
Heatingmode
CS-UW9GKE/CU-UW9GKE/CS-UW12GKE/CU-UW12GKE
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