SM0226
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
ROOM AIR CONDITIONER
INDOOR UNIT + OUTDOOR UNIT
JANUARY 2005
Refrigeration & Air-Conditioning Division
SERVICE MANUAL
REFER TO THE FOUNDATION MANUAL
TECHNICAL INFORMATION
FOR SERVICE PERSONNEL ONLY
CONTENTS
SPECIFICATIONS ------------------------------------------------------------------- 5
HOW TO USE ------------------------------------------------------------------------ 7
CONSTRUCTION AND DIMENSIONAL DIAGRAM ---------------------- 30
MAIN PARTS COMPONENT --------------------------------------------------- 32
WIRING DIAGRAM ----------------------------------------------------------------- 35
CIRCUIT DIAGRAM ---------------------------------------------------------------- 39
PRINTED WIRING BOARD LOCATION DIAGRAM ---------------------- 42
BLOCK DIAGRAM ------------------------------------------------------------------ 46
BASIC MODE ------------------------------------------------------------------------ 48
REFRIGERATING CYCLE DIAGRAM ---------------------------------------- 60
AUTO SWING FUNCTION ------------------------------------------------------ 61
DESCRIPTION OF MAIN CIRCUIT OPERATION ------------------------ 62
SERVICE CALL Q & A ----------------------------------------------------------- 93
TROUBLE SHOOTING ------------------------------------------------------------ 96
PARTS LIST AND DIAGRAM ------------------------------------------------- 118
RAS-50YH4/RAC-50YH4
RAC-50YH4
RAS-50YH4
(W)
(A)
(kW)
(B.T.U./h)
(W)
(A)
(kW)
(B.T.U./h)
W
H
D
(kg)
RAS-50YH4 RAC-50YH4
DC INVERTER (WALL TYPE)
TYPE
MODEL
POWER SOURCE
TOTAL INPUT
TOTAL AMPERES
CAPACITY
TOTAL INPUT
TOTAL AMPERES
CAPACITY
DIMENSIONS
(mm)
NET WEIGHT
SPECIFICATIONS
780
280
205
9.5
COOLING
HEATING
INDOOR UNIT
OUTDOOR UNIT
1 PHASE, 50 Hz, 230V
1,780 (155 ~ 2,200)
7.80
5.00 (0.90 ~ 5.20)
17,060
1,970 (115 ~ 2,200)
8.65
6.50 (0.90 ~ 8.10)
22,180
850
650
298
50
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