NO. 0305E
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
ROOM AIR CONDITIONER
INDOOR UNIT + OUTDOOR UNIT
DECEMBER 2005
Refrigeration & Air-Conditioning Division
SERVICE MANUAL
PM
REFER TO THE FOUNDATION MANUAL
HITACHI
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-70YH5 RAC-70YH5
DC INVERTER (WALL TYPE)
TYPE
MODEL
POWER SOURCE
TOTAL INPUT
TOTAL AMPERES
CAPACITY
TOTAL INPUT
TOTAL AMPERES
CAPACITY
DIMENSIONS
(mm)
NET WEIGHT
SPECIFICATIONS
1030
295
191
12
RAS-70YH5
CONTENTS
SPECIFICATIONS ------------------------------------------------------------------- 4
HOW TO USE ------------------------------------------------------------------------ 6
CONSTRUCTION AND DIMENSIONAL DIAGRAM --------------------- 28
MAIN PARTS COMPONENT --------------------------------------------------- 30
WIRING DIAGRAM ---------------------------------------------------------------- 32
CIRCUIT DIAGRAM --------------------------------------------------------------- 33
PRINTED WIRING BOARD LOCATION DIAGRAM --------------------- 39
BLOCK DIAGRAM ----------------------------------------------------------------- 42
BASIC MODE ----------------------------------------------------------------------- 43
REFRIGERATING CYCLE DIAGRAM --------------------------------------- 57
AUTO SWING FUNCTION ------------------------------------------------------ 58
DESCRIPTION OF MAIN CIRCUIT OPERATION ----------------------- 59
SERVICE CALL Q & A ---------------------------------------------------------- 83
TROUBLE SHOOTING ----------------------------------------------------------- 86
PARTS LIST AND DIAGRAM ------------------------------------------------- 106
RAS-70YH5 / RAC-70YH5
RAC-70YH5
COOLING
HEATING
INDOOR UNIT
OUTDOOR UNIT
2,670
11.2
7.10
24,240
2,800
11.80
8.30
28,330
After installation
1 PHASE, 50 Hz, 240V
850
800
298
52
0305E cover 4/1/06, 10:47 AM1
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