NO. 0346E
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
ROOM AIR CONDITIONER
INDOOR UNIT + OUTDOOR UNIT
DECEMBER 2006
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)
(WALL TYPE)
TYPE
MODEL
POWER SOURCE
TOTAL INPUT
TOTAL AMPERES
CAPACITY
TOTAL INPUT
TOTAL AMPERES
CAPACITY
DIMENSIONS
(mm)
NET WEIGHT
SPECIFICATIONS
RAS-18CH7
RAS-24CH7
CONTENTS
SPECIFICATIONS ----------------------------------------------------- 4
HOW TO USE ---------------------------------------------------------- 7
CONSTRUCTION AND DIMENSIONAL DIAGRAM ------- 31
MAIN PARTS COMPONENT ------------------------------------- 33
WIRING DIAGRAM -------------------------------------------------- 35
CIRCUIT DIAGRAM ------------------------------------------------- 37
PRINTED WIRING BOARD LOCATION DIAGRAM ------- 39
BLOCK DIAGRAM --------------------------------------------------- 41
BASIC MODE --------------------------------------------------------- 43
REFRIGERATING CYCLE DIAGRAM ------------------------- 49
DESCRIPTION OF MAIN CIRCUIT OPERATION --------- 51
AUTO SWING FUNCTION ---------------------------------------- 55
SERVICE CALL Q & A -------------------------------------------- 56
TROUBLE SHOOTING --------------------------------------------- 62
PARTS LIST AND DIAGRAM ------------------------------------ 65
RAS-18CH7/RAC-18CH7
RAS-24CH7/RAC-24CH7
COOLING
HEATING
OUTDOOR UNIT
RAC-18CH7
INDOOR UNIT
RAS-18CH7
1030
295
191
11
1 Ø, 50 Hz, 220 - 240V
1680 - 1730
7.8 - 7.40
5.10
17,410
1700 - 1750
8.00 - 7.50
5.7
19,460
After installation
RAC-18CH7
RAC-24CH7
OUTDOOR UNIT
RAC-24CH7
INDOOR UNIT
RAS-24CH7
850
650
298
55
1030
295
191
12
1 Ø, 50 Hz, 220-240V
2270-2400
10.9-10.5
6.30
21,500
2370-2400
11.20-10.40
7.05
24,060
850
650
298
50
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