Hitachi RAS-18GH5 - Service Manual

NO. 0479E
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
ROOM AIR CONDITIONER
INDOOR UNIT + OUTDOOR UNIT
JANUARY 2011 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)
RAS-18GH5 RAC-18GH5
(WALL TYPE)
TYPE
MODEL
POWER SOURCE
TOTAL INPUT
TOTAL AMPERES
CAPACITY
TOTAL INPUT
TOTAL AMPERES
CAPACITY
DIMENSIONS
(mm)
NET WEIGHT
SPECIFICATIONS
1030
295
207
12
RAS-18GH5
CONTENTS
SPECIFICATIONS ----------------------------------------------------- 5
HOW TO USE ---------------------------------------------------------- 9
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 ----------48
AUTO SWING FUNCTION -----------------------------------------52
SERVICE CALL Q & A ---------------------------------------------53
TROUBLE SHOOTING ----------------------------------------------59
PARTS LIST AND DIAGRAM -------------------------------------62
RAS-18GH5/RAC-18GH5
RAC-18GH5
COOLING
HEATING
INDOOR UNIT OUTDOOR UNIT
1 Ø, 50 Hz, 220 ~ 230
1550 ~ 1580
7.42 ~ 7.23
5.10
17,410
1640 ~ 1680
7.77 ~ 7.61
5.75
19,630
850
650
298
47
After installation