Samsung AQ24A1QE User manual

SERVICE Manual
CONTENTSAIR CONDITIONER
1. Precautions
2.ProductSpecifications
3. OperatingInstructions and
Installation
4.Disassembly and Reassembly
5. Troubleshootinh
5. Exploded Views andParts List
6. BlockDiagrams
7. PCBDiagrams
8. Wiring Diagrams
9. SchematicDiagrams
ROOM AIR CONDITIONER
INDOOR
AQ24A1QE
AQ24B1QE
AQ18A1QE
AQ18B1QE
OUTDOOR
UQ24A1QE
UQ24B1QE
UQ18A1QE
UQ18B1QE

© Samsung Electronics Co., Ltd. SEP. 1998.
Printed in Korea.
Code No. DB81-10168A(2)

1. Warning: Prior to repair, disconnect the
power cord from the circuit breaker.
2. Use proper parts: Use only exact replace-
ment parts. (Also, we recommend replacing
parts rather than repairing them.)
3. Use the proper tools: Use the proper tools
and test equipment, and know how to use
them. Using defective tools or test equip-
ment may cause problems later-intermittent
contact, for example.
4. Power Cord: Prior to repair, check the
power cord and replace it if necessary.
5. Avoid using an extension cord, and avoid
tapping into a power cord. This practice
may result in malfunction or fire.
6. After completing repairs and reassembly,
check the insulation resistance. Procedure:
Prior to applying power, measure the resis-
tance between the power cord and the
ground terminal. The resistance must be
greater than 30 megohms.
7. Make sure that the grounds are adequate.
8. Make sure that the installation conditions
are satisfactory. Relocate the unit if neces-
sary.
9. Keep children away from the unit while it is
being repaired.
10. Be sure to clean the unit and its surround-
ing area.
Samsung Electronics 1-1
1. Precautions
Fig. 1-1 Avoid Dangerous Contact
Fig. 1-2 No Tapping and No Extension Cords
Fig. 1-3 No Kids Nearby!
Fig. 1-4 Clean the Unit

1-2 Samsung Electronics
MEMO

Samsung Electronics 2-1
2. Product Specifications
2-1 Table
Model
Item
Power Sourse
Capacity KW
BTU/h
Air circulation (High) m2/min
Moisture removal (High) Liters/h
Available voltage range V
Running amperes A
Power input KW
Power factor %
Energy efficiency ratio BTU/wh
Compressor locked rotor amperes A
Controls/Temperature control
Control unit
Timer
Fanspeed Indoor/Outdoor
Airflow direction(indoor) Horizontal
Vertical
Comperssor
Refrigerant/Amount charged at rating g
Refrigerant control
Operation sound Indoor Hi/Me/Lc dB-A
Outdoor-Hi dB-A
Refrigerant tubing connections
Max. allowable tubing length at shippint m
Refrigerant tube diameter Narrow tube (in.)
Wide tube (in.)
Refrigerant tube kit/Accessories
Unit dimensions Height mm
Width mm
Depth mm
Package dimensions Height mm
Width mm
Depth mm
Weight Net kg
Shipping kg
AQ24A1QE
Cooling Heating
220/240V~,50Hz
7.03 7.03
24,000 24,000
14.5 15
2.7 -
198~264
11.8 12
2.45 2.45
86.5 85.1
9.8 9.8
68
Microprocessor/I.C Thermostat
Wireless remote control
Q-Timer/24-Hour On or Off
3 Steps and Turbo/1 Step
Manual
Auto
Reciprocating(Bristol)
R22/1650
Capillary tube
47/44/41
59
Flare type
5
6.35(1/4”)
15.88(5/8”)
Optional/Hanger-plate
275 638
1080 880
204 310
372 851
1153 1023
272 413
15 63.0
18 67.0
AQ18A1QE
Cooling Heating
220/240V~,50Hz
5.27 5.86
18,000 20,000
13.5 14
2.2 -
198~264
8.3 8.8
1.85 1.95
92.9 92.3
9.7 10.2
30
Microprocessor/I.C Thermostat
Wireless remote control
Q-Timer/24-Hour On or Off
3 Steps and Turbo/1 Step
Manual
Auto
Rotary(Samsung)
R22/1550
Capillary tube
45/42/39
55
Flare type
5
6.35(1/4”)
12.70(1/2”)
Optional/Hanger-plate
275 620
1080 787
204 320
372 680
1153 926
272 451
15 46.0
18 50.0
Perfor-
mance
Electrical
Rating
Features
Dimensions
&
Weight
Indoor unit Outdoor Indoor unit Outdoor
Remarks : Rating Conditions are :
Indoor air temperature 27˚C DB/19˚C WB
Outdoor air temperature 35˚C DB/24˚C WB

2-2 Samsung Electronics
2-2 MAJOR COMPONENT SPECIFICATIONS
■Indoor Unit
Model
Part No.
Controls
Control circuit fuse
Type
Dia. and length mm
Fan motor model
Pols,rpm(at 240V)
Normal output W
Coil resistance(Ambient temp.20˚C) Ω
Safety devices Type
Operating temp. Open ˚C
Close ˚C
Run capacitor µF x VAC
Type
Model
Rating
Coil resistance (Ambient temp. 25˚C) Ω
Coil
Rows x Steps
Fin pitch mm
AQ24A1QE
DB93-10545A
Microprocessor
250V, 3.15A
Cross-Flow
ø95/L=842
IC-9430SKJ5A
4P, 1350 RPM
40 W
MAIN:162Ω
SUB:216Ω
17AM034A5
135±5˚C
-
1.2µF X 450VAC
PM
MP35EA, MSFCC20B02
DC 12V
250 Ω
AL-FIN/Copper tube
2 X 15
1.5
AQ18A1QE
DB93-10555A
Microprocessor
250V, 3.15A
Cross-Flow
ø95/L=842
IC-9430SKJ5A
4P, 1350 RPM
40 W
MAIN:162Ω
SUB:216Ω
17AM034A5
135±5˚C
-
1.2µF X 450VAC
PM
MP35EA, MSFCC20B02
DC 12V
250 Ω
AL-FIN/Copper tube
2 X 15
1.5
PCB
■Outdoor Unit
FAN &
FAN
MOTOR
S-MOTOR
Heat
Exch.
Model
Type
Compressor model
Normal output W
Comperssor oil kind
Comperssor oil cc
Oil Specific gravity
Coil resistance(Ambient temp.25˚C) Ω
Safety devices Type
Overloal relay
Operating temp. Open ˚C
Close ˚C
Operating amp(Ambient temp.)
Run capacitor µF x VAC
Type
Dia. and length mm
Fan motor model
Pols, rpm(at240V)
Normal output W
Coil resistance(Ambient temp.20˚C) Ω
Safety devices Type
Operating temp. Open ˚C
Close ˚C
Run capacitor µF x VAC
Coil
Rows x Steps
Fin pitch mm
UQ24A1QE/UQ24B1QE
Reciprocating
H25B30QABH
2430
SUNISO 3GS
1,030
0.92
Start winding:
Run winding :
Protector
Internal Line Break
40MF X 400VAC
Propeller
ø460
OSME-716SRC,IC-1640SOJ5A,ASS100AVEA
6P, 870RPM
70W
MAIN : 58Ω- 88Ω
SUB : 85Ω- 150Ω
17AM034A5
135±5˚C
-
3µF X 450VAC
AL-FIN/Copper tube
2 X 24
1.7
UQ18A1QE/UQ18B1QE
Rotary
48B180JV1E7
1535
SUNISO-4GSD-T
600
0.92
Common to Main : 1.84
Common to sub :
Protector
MRA12016-12007
165
74
120˚C:10.7, 130˚C:9.4
40MF X 400VAC
Propeller
ø405
AMASS-035AVEB
4P,980RPM
35W
MAIN : 180Ω
SUB : 225Ω
17AM037A5
150±5˚C
-
2.5µF X 450VAC
AL-FIN/Copper tube
2 X 24
1.7
Compressor
FAN &
FAN
Heat
Exch.

Samsung Electronics 2-3
2-3 Dimensions
2-3-1 Indoor Unit
2-3-2 Outdoor Unit
2-3-2(a) UQ24A1QE, UQ24B1QE
(Front view)
1080 204
(Remote control)
(Rear view)
(Front view) (Rear view)
660
878
58 22

Product Specifications
2-4 Samsung Electronics
2-3-3(b) UQ18A1QE, UQ18B1QE
(Front view) (Rear view)
582
787
340

2-5
Samsung Electronics
2-4 Pressure Graph
Indoor Unit : AQ24A1QE
AQ24B1QE Outdoor Unit : UQ24A1QE UQ24B1QE
Indoor Unit : AQ18A1QE
AQ18B1QE Outdoor Unit : UQ18A1QE UQ18B1QE

2-6 Samsung Electronics
MEMO