NO. 0019E
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
ROOM AIR CONDITIONER
INDOOR UNIT + OUTDOOR UNIT
DECEMBER 2006 Hitachi Household Appliances(Wuhu) Co.,Ltd.
SERVICE MANUAL
AW
REFER TO THE FOUNDATION MANUAL
TECHNICAL INFORMATION
FOR SERVICE PERSONNEL ONLY
(W)
(A)
(kW)
(B.T.U./h)
(W)
(A)
(kW)
(B.T.U./h)
W
H
D
(kg)
RAS-18YH6 RAC-18YH6
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
210
9.5
RAS-18YH6
RAS-25YH6
CONTENTS
SPECIFICATIONS ------------------------------------------------------------------- 4
HOW TO USE ----------------------------------------------------------------------- 5
CONSTRUCTION AND DIMENSIONAL DIAGRAM --------------------- 15
MAIN PARTS COMPONENT --------------------------------------------------- 17
WIRING DIAGRAM ---------------------------------------------------------------- 19
CIRCUIT DIAGRAM --------------------------------------------------------------- 20
RAS-18YH6/RAC-18YH6
RAS-25YH6/RAC-25YH6
RAC-18YH6
RAC-25YH6
COOLING
HEATING
INDOOR UNIT
OUTDOOR UNIT
INDOOR UNIT
OUTDOOR UNIT
1 PHASE, 50 Hz, 220-230V
550 (155 ~ 1,010)
2.95-2.81
2.00 (0.90 ~ 2.50)
6,820 (3,070 ~ 8,530)
580 (115 ~ 970)
2.93-2.81
2.50 (0.90 ~ 3.20)
8,530 (3,070 ~ 10,920)
505
27
780
280
210
9.5
505
27
1 PHASE, 50 Hz, 220-230V
700 (155 ~ 1,290)
3.75-3.59
2.50 (0.90 ~ 3.10)
8,530 (3,070 ~ 10,580)
880 (115 ~ 1,250)
4.45-4.26
3.40 (0.90 ~ 4.40)
11,600 (3,070 ~ 15,010)
After installation
RAS-25YH6 RAC-25YH6
BLOCK DIAGRAM ----------------------------------------------------------------- 22
BASIC MODE ----------------------------------------------------------------------- 23
REFRIGERATING CYCLE DIAGRAM --------------------------------------- 29
DESCRIPTION OF MAIN CIRCUIT OPERATION ----------------------- 30
SERVICE CALL Q & A ---------------------------------------------------------- 60
TROUBLE SHOOTING ----------------------------------------------------------- 63
PROCEDURE FOR DISASSEMBLY AND REASSEMBLY ------------ 87
PARTS LIST AND DIAGRAM -------------------------------------------------- 89
700 (+68) 700 (+68)
258 (+48) 258 (+48)
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