Hitachi RAS-18FH6 Service Manual

SERVICE MANUAL

TECHNICAL INFORMATION

FOR SERVICE PERSONNEL ONLY
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

FEBRUARY 2008 Hitachi Household Appliances(Wuhu) Co.,Ltd.
RAS-18FH6
RAS-25FH6
RAC-18YH6
RAC-25YH6
Indoor Unit
RAS-18FH6
1 PHASE, 50 Hz, 220-230V
(W)
550 (155 ~ 1,010)
(A)
2.95-2.81
(kW)
2.00 (0.90 ~ 2.50)
(B.T.U./h)
6,820 (3,070 ~ 8,530)
(W)
580 (115 ~ 970)
(A)
2.93-2.81
(kW)
2.50 (0.90 ~ 3.20)
(B.T.U./h)
8,530 (3,070 ~ 10,920)
W 780
H
280
D 220
(kg) 9.5
INDOOR UNIT + OUTDOOR UNIT
NO. 0024E
AW
RAS-18FH6 RAC-18YH6
RAS-25FH6 RAC-25YH6
REFER TO THE FOUNDATION MANUAL

SPECIFICATIONS ------------------------------------------------------------------- 4

How To Use ----------------------------------------------------------------------- 5
Construction And Dimensional Diagram --------------------- 15
Main Parts Component --------------------------------------------------- 17
Wiring Diagram ---------------------------------------------------------------- 19
Circuit Diagram --------------------------------------------------------------- 20
Block Diagram ----------------------------------------------------------------- 22
Basic Mode ----------------------------------------------------------------------- 23
Refrigerating Cycle Diagram --------------------------------------
Description Of Main Circuit Operation ----------------------- 30
SERVICE CALL Q & A ---------------------------------------------------------- 60
Trouble Shooting ----------------------------------------------------------- 63
Procedure For Disassembly And Reassembly
Parts List And Diagram -------------------------------------------------- 90
DC INVERTER (WALL TYPE)
Outdoor Unit INDOOR UNIT
RAC-18YH6 RAS-25FH6
1 PHASE, 50 Hz, 220-230V
8,530 (3,070 ~ 10,580)
11,600 (3,070 ~ 15,010)
700 (+68)
780
505 280
258 (+48) 220
27 9.5
CONTENTS
--------------------------------------
OUTDOOR UNIT
RAC-25YH6
700 (155 ~ 1,290)
3.75-3.59
2.50 (0.90 ~ 3.10)
880 (115 ~ 1,250)
4.45-4.26
3.40 (0.90 ~ 4.40)
700 (+68)
505
258 (+48)
27
After installation
- 29
88