Hitachi   RAK-18NH6AS, Service Manual

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NO. 0489E
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
ROOM AIR CONDITIONER
INDOOR UNIT
APRIL 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)
DC INVERTER (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 ---------------------------------------------------------11
CONSTRUCTION AND DIMENSIONAL DIAGRAM ---------33
MAIN PARTS COMPONENT --------------------------------------34
WIRING DIAGRAM ---------------------------------------------------35
CIRCUIT DIAGRAM --------------------------------------------------37
PRINTED WIRING BOARD LOCATION DIAGRAM --------39
BLOCK DIAGRAM ----------------------------------------------------43
BASIC MODE ----------------------------------------------------------45
REFRIGERATING CYCLE DIAGRAM---------------------------59
AUTO SWING FUNCTION -----------------------------------------61
DESCRIPTION OF MAIN CIRCUIT OPERATION -----------62
SERVICE CALL Q & A ----------------------------------------------67
PARTS LIST AND DIAGRAM --------------------------------------77
RAK-18NH6AS
RAK-18NH6A
RAK-25NH6A
RAK-35NH6A
RAK-50NH6A
COOLING
HEATING
780
280
220
RAK-18NH6AS
RAK-18NH6A
RAK-25NH6A
RAK-35NH6A
RAK-50NH6A
RAK-35NH6A
1ø 50/60Hz, 220-240V
REFER TO THE SPECIFICATION (OUTDOOR)
INDOOR UNIT
RAK-18NH6AS RAK-18NH6A RAK-25NH6A
NOTE:
This manual describes only points that differ from
RAF-25, 35NH5, RAD-25, 35NH5, RAI-25, 35NH5 and
RAM-55QH5 (PM No. 0312E) for items not described
in this manual.
9.5 9.0 9.0
HITACHI
DC INVERTER
TEMPORARY
SWITCH
9.5 9.5
RAK-50NH6A