Hitachi RAC-50YH7 User Manual

NO. 0466E
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
ROOM AIR CONDITIONER
INDOOR UNIT + OUTDOOR UNIT
JANUARY 2010 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-50FH7
DC INVERTER (WALL TYPE)
TYPE
MODEL
POWER SOURCE
TOTAL INPUT
TOTAL AMPERES
CAPACITY
TOTAL INPUT
TOTAL AMPERES
CAPACITY
DIMENSIONS
(mm)
NET WEIGHT
SPECIFICATIONS
780
280
220
9.5
CONTENTS
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
RAS-50FH7/RAC-50YH7
RAC-50YH7
COOLING
HEATING
INDOOR UNIT
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)
After installation
1 PHASE, 50/60 Hz, 220-240V
RAS-50FH7
850
650
298
45
RAC-50YH7
DC INVERTER
T
E
M
P
O
R
A
R
Y
S
W
IT
C
H
HITACHI
OUTDOOR UNIT

Hitachi RAC-50YH7 Specifications

General

Type	Wall Mounted
Cooling Capacity	5.0 kW
Heating Capacity	6.0 kW
Refrigerant	R32
Power Supply	220-240V, 50Hz