Read Sharp AU-A18 (serv.man12) Service Manual online
1
AH-AP18CS
AH-AP24CS
AU-A18CS
AU-A24CS
AH-AP24CS
AU-A18CS
AU-A24CS
INDOOR UNIT
AH-AP18CS
AH-AP24CS
AH-AP24CS
OUTDOOR UNIT
MODELS
SERVICE MANUAL
S8229AHAP24CS
SHARP CORPORATION
In the interests of user-safety (Required by safety regulations in some
countries) the set should be restored to its original condition and only
parts identical to those specified should be used.
countries) the set should be restored to its original condition and only
parts identical to those specified should be used.
SPLIT SYSTEM
ROOM AIR CONDITIONERS
AU-A18CS
AU-A24CS
AU-A24CS
TABLE OF CONTENTS
Page
SPECIFICATIONS ............................................................................................................................................. 2
EXTERNAL DIMENSIONS ............................................................................................................................... 3
WIRING DIAGRAMS ......................................................................................................................................... 4
ELECTRICAL PARTS ....................................................................................................................................... 5
MICROCOMPUTER CONTROL SYSTEM ....................................................................................................... 6
FUNCTIONS ................................................................................................................................................... 10
TROUBLESHOOTING GUIDE OF CONTROL CIRCUIT ................................................................................ 16
REFRIGERATION CYCLE .............................................................................................................................. 20
PERFORMANCE CURVES ............................................................................................................................ 21
REFRIGERANT PIPE INSTALLATION WORKS ............................................................................................. 21
DISASSEMBLING PROCEDURE ................................................................................................................... 22
REPLACEMENT PARTS LIST ........................................................................................................................ 31
EXTERNAL DIMENSIONS ............................................................................................................................... 3
WIRING DIAGRAMS ......................................................................................................................................... 4
ELECTRICAL PARTS ....................................................................................................................................... 5
MICROCOMPUTER CONTROL SYSTEM ....................................................................................................... 6
FUNCTIONS ................................................................................................................................................... 10
TROUBLESHOOTING GUIDE OF CONTROL CIRCUIT ................................................................................ 16
REFRIGERATION CYCLE .............................................................................................................................. 20
PERFORMANCE CURVES ............................................................................................................................ 21
REFRIGERANT PIPE INSTALLATION WORKS ............................................................................................. 21
DISASSEMBLING PROCEDURE ................................................................................................................... 22
REPLACEMENT PARTS LIST ........................................................................................................................ 31
AH-AP18CS
AH-AP24CS
AU-A18CS
AU-A24CS
AH-AP24CS
AU-A18CS
AU-A24CS
2
SPECIFICATIONS
ITEMS
INDOOR UNIT
OUTDOOR UNIT
INDOOR UNIT
OUTDOOR UNIT
AH-AP18CS
AU-A18CS
AH-AP24CS
AU-A24CS
Cooling capacity
kW
4.4
5.8
Moisture removal
Liters/h
0.2
0.7
Electrical data
Phase 2
–
Single
Rated frequency
Hz
60
Rated voltage
V
220
Rated current
Cool
A
11.7
15.7
Rated input
Cool kW
2550
3350
Power factor
Cool
%
99
97
Compressor
Type
Hermetically sealed rotary type
Model
SRC60BVHTT
SRC75CVHTT
Oil charge
850cc (SUNISO 4GS.D.I)
800cc (SUNISO 4GS.D.I)
Refrigerant system
Evaporator
Louver fin and Grooved tube type
Condenser
Louver fin and Grooved tube type
Control
Capillary tube
Refrigerant volume
970g
1620g
Capillary tube size
Outer dia. mm
–
3.2
–
3.5
Inner dia. mm
–
2.0
–
2.2
Length mm
–
700
–
900
Q'ty
–
1
–
1
Noise level
High
dB(A)
40
52
44
54
(at cooling)
Med.
dB(A)
36
–
39
–
Low
dB(A)
34
–
37
–
Fan system
Drive
Direct drive
Air flow quantity
High
m
3
/min.
15.3
48
18.1
46
(at cooling)
Med.
m
3
/min.
13.4
–
15.0
–
Low
m
3
/min.
11.3
–
13.7
–
Fan
Cross flow fan
Propeller fan
Cross flow fan
Propeller fan
Connections
Refrigerant coupling
Flare type
Refrigerant tube size Gas, Liquid
1/2", 1/4"
5/8", 1/4"
Drain piping mm
O.D ø 20
Others
Safety device
Compressor: Overload protector(Internal)
Compressor: Overload protector(Internal)
Thermal protector
Fan motors: Thermal protector (Internal)
Fuse, Micro computer control
Air filters
Polypropylene net (Washable)
Net dimensions
Width
mm
1040
890
1040
890
Height mm
325
645
325
645
Depth
mm
220
327
220
327
Net weight
kg
16
50
16
54
Note: The condition of star ( ) marked item are ‘SSA 385, 386’.
3
AH-AP18CS
AH-AP24CS
AU-A18CS
AU-A24CS
AH-AP24CS
AU-A18CS
AU-A24CS
570
645
202
122
320
342
890
290
37
30
172
25
62
46.3
10.5
ø4.5
EXTERNAL DIMENSIONS
Figure E-1. INDOOR UNIT
Figure E-2. OUTDOOR UNIT
220
1300
Power supply cord
(AH-AP18CS only)
(AH-AP18CS only)
[Length unit : mm]
325
1040
Remote controller
58
18.5
22
140
TEMP.
INVERTER AIR CONDITIONER
TEMP.
MODE
FAN
TIMER
AH-AP18CS
AH-AP24CS
AU-A18CS
AU-A24CS
AH-AP24CS
AU-A18CS
AU-A24CS
4
WIRING DIAGRAMS
Figure W-1. Wiring Diagram for AH-AP18CS
Figure W-2. Wiring Diagram for AU-A18CS