Samsung AQA24C5ME User manual

SERVICE Manual

CONTENTSAIR CONDITIONER

1. Precautions

2. Product Specifications

3. Operating lnstructions and

Installation

4. Disassembly and Reassembly

5. Troubleshooting

6. Exploded Views and Parts List

7. Block Diagrams

8. PCB Diagrams

9. Wiring Diagrams

10. Schematic Diagrams

ROOM AIR CONDITIONER

INDOOR

AQA24C5(6)ME

SH24AC5(6)

AQA18C9(0)ME

SH18AC9(0)

OUTDOOR

UQA24C5(6)ME

SH24AC5(6)X

UQA18C9(0)ME

SH18AC9(0)X

DB98-05230A(1)-cover 4/18/02 5:03 PM Page 3

1-1Samsung Electronics

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, mea-

sure the resistance between the power cord

and the ground terminal. The resistance

must be greater than 30 megaohms.

7. Make sure that the grounds are adequate.

8. Make sure that the installation conditions

are satisfactory.

Relocate the unit if necessary.

9. Keep children away from the unit while it is

being repaired.

10. Be sure to clean the unit and its surround-

ing area.

1. Precautions

Fig. 1-1 Avoid Dangerous Contact

Fig. 1-2 No Tapping and No Extension Cords

Fig. 1-3 No Kids Nearby!

O.K

Fig. 1-4 Clean the Unit

DB98-05230A(1)-1 4/18/02 5:04 PM Page 1-1

MEMO

Samsung Electronics1-2

DB98-05230A(1)-1 4/18/02 5:04 PM Page 1-2

2-1Samsung Electronics

2. Product Specifications

2-1 Table

Model

Item

Power Sourse

Capacity KW

Air circulation (High) m3/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

Fan speed Indoor/Outdoor

Air flow direction (indoor) Horizontal

Vertical

Comperssor

Refrigerant/Amount charged at rating g

Refrigerant control

Operation sound Indoor Hi/Mi/Lo 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

SH24AC5(6)

Cool Heat

220-240V, 50Hz

6.80KW 6.90KW

14.0 15.0

3.2

198 ~ 264

11.4 11.9

2.50 2.60

94.6 94.2

2.72 2.65

Microprocessor / I.C Thermistor

Wireless remote control

24-Hour ON or OFF

3 Steps and Turbo / 2 Step

Manual

Auto

Rotary(Toshiba)

R410A / 1,650g

Capillary tube

49 / 47 / 45

Flare type

6.35(1/4")

15.88(5/8")

Optional / Hanger-plate

SH18AC9(0)

Cool Heat

220-240V, 50Hz

5.30KW 5.60KW

12.7 14.0

2.2

198 ~ 264

7.9 7.8

1.83 1.80

98.4 98.4

2.90 3.11

Microprocessor / I.C Thermistor

Wireless remote control

24-Hour ON or OFF

3 Steps and Turbo / 2 Step

Manual

Auto

Rotary(Toshiba)

R410A / 1,400g

Capillary tube

46 / 44 / 42

Flare type

6.35(1/4")

12.7(1/2")

Optional / Hanger-plate

Perfor-

mance

Electrical

Rating

Features

Dimensions

Weight

Indoor unit Outdoor Indoor unit Outdoor

275

1080

204

372

1153

272

638

880

310

719

1023

413

61.5

65.5

275

1080

204

372

1153

272

620

787

320

692

909

444

53.5

57.0

Remarks : Rating Conditions are :

Indoor air temperature ISO(50Hz) : 27˚C DB/19.0˚C WB, ISO(60Hz) : 27.0˚C DB/19.5˚C WB

Outdoor air temperature ISO : 35.0˚C DB/24.0˚C WB

DB98-05230A(1)-1 4/18/02 5:04 PM Page 2-1

Samsung Electronics2-2

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 out W

Coil resistance(Ambient temp.20˚C) Ω

Safety devices Type

Operating temp. Open ˚C

Run capacitor µF x VAC

Type

Model

Rating

Coil resistance (Ambient temp. 25˚C) Ω

Coil

Rows x Steps

Fin pitch mm

Face area m2

SH24AC5(6)

PD-SH30ZC-00/02

Microprocessor

250V, 3.15A

Cross-Flow

ø95/L = 842

IC-9430SKC7A

4P, 1350 RPM

40W

MAIN : 137Ω

SUB : 132Ω

17AM034A5

135 ± 5°C

2µF X 450VAC

MSFCC20A03

DC 12V

530Ω

AL-FIN/Copper tube

2 x 15

1.2

0.265

SH18AC9(0)

PD-SH30ZC-00/03

Microprocessor

250V, 3.15A

Cross-Flow

ø95/L = 842

IC-9430SKC7A

4P, 1350 RPM

40W

MAIN : 137Ω

SUB : 132Ω

17AM034A5

135 ± 5°C

2µF X 450VAC

MSFCC20A03

DC 12V

530Ω

AL-FIN/Copper tube

2 x 15

1.5

0.265

PCB

Fan

Fan Motor

S-Motor

Heat

Exch.

■Outdoor unit

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

Face area m2

SH24AC5(6)

ROTARY

PA290X3F-4MSE

2570

RB68AF

1400

Start winding : 2.20

Run winding : 1.07

UP2TF7225-141

Internal Line Break

165

45µF X 450VAC

Propeller

ø460

OSME-906SRC

6P, 850/400 RPM

70W

17AM037A5

150±5°C

4µF x 450VAC

AL-FIN / Copper tube

2 x 28

1.5

0.538

SH18AC9(0)

ROTARY

PA225X3F-4MSE

1950

RB68AF

1200

Start winding : 2.68

Run winding : 1.35

UP3SE0391-T39

Internal Line Break

160

45µF X 450VAC

Propeller

ø405

AMASS-030AVEB

4P, 920RPM

35W

17AM037A5

150±5°C

2.5µF x 450VAC

AL-FIN / Copper tube

2 x 28

1.5

0.500

Comp-

ressor

Fan

Heat

Exch.

DB98-05230A(1)-1 4/18/02 5:04 PM Page 2-2

2-3Samsung Electronics

2-3 Dimensions

2-3-1 Indoor Unit

275

1080

(Remote control)

2245

115

✳The feature is subject to be varied as a model.

(Front view)

Installation plate

204

(Rear view)

DB98-05230A(1)-1 4/18/02 5:04 PM Page 2-3

Samsung Electronics2-4

Product Specifications

■18K BTU

(Front view) (Rear view)

320

620

582

787

340

2-3-2 Outdoor Unit

■24K BTU

(Front view) (Rear view)

310

638

660

880

DB98-05230A(1)-1 4/18/02 5:04 PM Page 2-4

2-5Samsung Electronics

2-4 Pressure Graph

■ 24K BTU

20 25 30 35

Outdoor drybulb temp [deg C]

Low Pressure [kg/cm2G]

30.6/22.5

27/19

21.5/14.6

20 25 30 35

Outdoor drybulb temp [deg C]

Low Pressure [kg/cm2G]

30.6/22.5

27/19

21.5/14.6

■ 18 BTU

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MEMO

Samsung Electronics2-6

DB98-05230A(1)-1 4/18/02 5:04 PM Page 2-6

3-1Samsung Electronics

3. Operating Instructions and Installation

3-1 Operating Instructions

To select the 5 way function with the remote control, press the 5 way

button one or more times until the desired mode is selected.

Each time you press the 5 way button

Each 5 way indicator on the indoor unit comes on in order.

Each time you press this button,

FAN SPEED is changed in the following order.

Press until the appearance. the sleep timer can be used when

you are cooling or heating your room to switch the air conditioner off

automatically after a perriod of six hours.

The ON Timer enables you to switch on the air conditioner automatically

after a given period of time that is from 30 minutes to 24 hours.

To cancel, press the (Set/Cancel) button.

Each time you press this button

Mode is changed in the following order

Temp. down button. To decrease the temperature by the pressing

the temperature button.

Temp. up button. To increase the temperatute by the pressing

the temperature button.

FUNCTION OF KEY

3-1-1 The Feature of Key in remote controller

: Auto Mode : Fan Only

: Cool Mode : Heat Mode

: Dry Mode

(DOWN)

Power On/Off button to start and stop airconditioner or timer set up.

Press until the appearance. the air condition cools or heats

the room as quickly as possible. after 30minutes, the air,

the airconditioner is reset automatically to the previous mode.

NAMED OF KEY

(UP)

Adjust air flow vertically.

The Off Timer enables you to switch off the air conditioner automatically

after a given period of time that is from 30 minutes to 24 hours.

To cancel, press the (Set/Cancel) button.

DB98-05230A(1)-1 4/18/02 5:04 PM Page 3-1

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