Hitachi RAC-08LH1, Service Manual, Page: 1 / 76

NO. 0518E
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
ROOM AIR CONDITIONER
INDOOR UNIT + OUTDOOR UNIT
MARCH 2012
Refrigeration & Air-Conditioning Division
SERVICE MANUAL
PM
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)
(WALL TYPE)
TYPE
MODEL
POWER SOURCE
TOTAL INPUT
TOTAL AMPERES
CAPACITY
TOTAL INPUT
TOTAL AMPERES
CAPACITY
DIMENSIONS
(mm)
NET WEIGHT
SPECIFICATIONS
CONTENTS
SPECIFICATIONS ------------------------------------------------------ 5
HOW TO USE ---------------------------------------------------------- 6
CONSTRUCTION AND DIMENSIONAL DIAGRAM ---------30
MAIN PARTS COMPONENT --------------------------------------32
WIRING DIAGRAM ---------------------------------------------------34
CIRCUIT DIAGRAM --------------------------------------------------35
PRINTED WIRING BOARD LOCATION DIAGRAM --------37
BLOCK DIAGRAM ----------------------------------------------------39
BASIC MODE ----------------------------------------------------------41
REFRIGERATING CYCLE DIAGRAM---------------------------47
DESCRIPTION OF MAIN CIRCUIT OPERATION -----------49
AUTO SWING FUNCTION -----------------------------------------57
SERVICE CALL Q & A ----------------------------------------------58
PARTS LIST AND DIAGRAM --------------------------------------67
RAS-08LH2/RAS-08LH2(B) / RAC-08LH1
RAS-10LH2/RAS-10LH2(B) / RAC-10LH1
RAS-14LH2/RAS-14LH2(B) / RAC-14LH1
COOLING
HEATING
INDOOR UNIT
RAS-08LH2/
RAS-08LH2(B)
780
280
220
8.5
After installation
RAS-08LH2/RAS-08LH2(B)
RAS-10LH2/RAS-10LH2(B)
RAS-14LH2/RAS-14LH2(B)
RAS-08LH1
RAS-10LH1
RAS-14LH1
OUTDOOR UNIT
RAC-8LH1
INDOOR UNIT
RAS-10LH2/
RAS-10LH2(B)
OUTDOOR UNIT
RAC-10LH1
INDOOR UNIT
RAS-14LH2/
RAS-14LH2(B)
OUTDOOR UNIT
RAC-14LH1
700
468
258
23
700
468
258
27
780
280
220
9.0
700
468
258
25
780
280
220
9.0
1 PHASE, 50 Hz, 220-230V
670 – 680
3.14 – 3.05
2.18 – 2.18
7,440 – 7,440
570 – 580
2.70 – 2.63
2.18 – 2.18
7,440 – 7,440
1 PHASE, 50 Hz, 220-230V
910 – 940
4.25 – 4.20
2.92 – 2.96
9,970 – 10,100
780 – 810
3.65 – 3.62
2.97 – 2.98
10,140 – 10,170
1 PHASE, 50 Hz, 220-230V
1,300 – 1,320
6.10 – 5.90
3.66 – 3.68
12,500 – 12,560
1,020 – 1,060
4.85 – 4.80
3.81 – 3.86
13,010 – 13,180