Hitachi RAS-50FH7 Service Manual

SERVICE MANUAL

TECHNICAL INFORMATION

FOR SERVICE PERSONNEL ONLY
RAS-50FH7
Specifications
TYPE
MODEL
POWER SOURCE
TOTAL INPUT
TOTAL AMPERES
COOLING
CAPACITY
TOTAL INPUT
TOTAL AMPERES
HEATING
CAPACITY
Dimensions
(mm)
NET WEIGHT
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

ROOM AIR CONDITIONER

JANUARY 2010
HITACHI
RAC-50YH7
(W)
(A)
(kW)
(B.T.U./h)
(W)
(A)
(kW)
(B.T.U./h)
W
H
D
(kg)
INDOOR UNIT + OUTDOOR UNIT
Refrigeration & Air-Conditioning Division
PM
RAS-50FH7/RAC-50YH7
REFER TO THE FOUNDATION MANUAL

SPECIFICATIONS ------------------------------------------------------------------- 5

HOW TO USE ------------------------------------------------------------------------ 7
Construction And Dimensional Diagram --------------------- 29
Main Parts Component --------------------------------------------------- 31
Wiring Diagram ---------------------------------------------------------------- 33
Circuit Diagram --------------------------------------------------------------- 35
Printed Wiring Board Location Diagram --------------------- 41
Block Diagram ----------------------------------------------------------------- 44
Basic Mode ----------------------------------------------------------------------- 45
Refrigerating Cycle Diagram --------------------------------------- 59
Auto Swing Function ------------------------------------------------------ 60
Description Of Main Circuit Operation ----------------------- 61
SERVICE CALL Q & A ---------------------------------------------------------- 74
Trouble Shooting ----------------------------------------------------------- 78
Parts List And Diagram -------------------------------------------------- 98
DC INVERTER (WALL TYPE)
INDOOR UNIT
RAS-50FH7
1 PHASE, 50/60 Hz, 220-240V
1,560 (155 ~ 2,200)
7.15 ~ 6.56
5.00 (0.9 ~ 5.2)
17,070 (3,072 ~ 17,754)
1,660 (155 ~ 2,200)
7.60 ~ 7.00
6.00 (0.9 ~ 8.1)
20,480 (3,072 ~ 27,649)
780
280
220
9.5
NO. 0466E
CONTENTS
OUTDOOR UNIT
RAC-50YH7
850
650
298
45
After installation