SAMSUNG SH24ZS6A Service Manual

ROOM AIR CONDITIONER

INDOOR UNIT

SH18ZS0A AQ18S0GBA AQ18S0GEA AQT18S0GBA AQT18S0GEA SH24ZS6A AQ24S6GBA AQ24S6GEA AQT24S6GBA AQT24S6GEA

SERVICE

OUTDOOR UNIT

SH18ZS0AX UQ18S0GBA UQ18S0GEA UQT18S0GBA UQT18S0GEA SH24ZS6AX UQ24S6GBA UQ24S6GEA UQT24S6GBA UQT24S6GEA

Manual

CONTENTSAIR CONDITIONER

1. Product Specifications

2. Operating Instructions

3. Disassembly and Reassembly

4. Refrigerating Cycle Diagram

5. Set Up the Model Option

6. Exploded Views and Parts List

7. PCB Diagram

8. Wiring Diagram

9. Schematic Diagram

1. Product Specifications

1-1 Table

Item

Power Source

Performance

Electrical

Rating

Features

Dimensions

Weight

Model

Capacity (ISO/SASO) Air Circulation (High) m 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

Airflow Direction (Indoor)

Compressor Refrigerant / Amount Charged at Rating g Refrigerant Control

Operation Sound

Refrigerant Tubing Connections Max. Allowable Tubing Length m

Refrigerant Tube Diameter

Refrigerant Tube Kit / Accessories

Unit Dimensions Width mm

Package Dimensions Width mm

Weight

Horizontal Vertical

Indoor Hi/Mi/Low dB-A Outdoor-Hi dB-A

Narrow Tube (in.) Wide Tube (in.)

Height mm

Depth mm Height mm

Depth mm Net kg Shipping kg

/min

SH18ZS0A / AQ18S0GEA

Cool Heat

220-240V~,50Hz

18,000 BTU/h

Indoor unit Outdoor unit

20,000 BTU/h

13.5 14.0

2.5

198~264

7.8 7.8

1.75 1.74

98.1 97.0

10.23 11.49 35

Microprocessor / Thermistor

Wireless remote control

24-Hour ON / OFF

3 Steps and Turbo / 2 Step

Manual

Auto

Rotary(Samsung)

R22 / 1,150g

Capillary tube

46 / 44 / 42

Flare type

6.35(1/4")

12.70(1/2")

Optional / Hanger-plate

315 620

1,080 787

205 320 286 692

1,151 909

397 444

13 45 16 49

18,000 BTU/h

AQT18S0GBA

Cool Heat

220V~,60Hz

4,000 kcal/h

13.5 14.0

8.5 9.5

1.87 2.10

99.0 99.0

9.63 9.52

Microprocessor / Thermistor

Wireless remote control

24-Hour ON / OFF

3 Steps and Turbo / 2 Step

Optional / Hanger-plate

Indoor unit Outdoor unit

315 620

1,080 787

205 320 286 692

1,151 909

397 444

13 54 16 58

20,000 BTU/h

2.5

187~253

Manual

Auto

Rotary(Samsung)

R22 / 1,570g

Capillary tube

48 / 46 / 44

Flare type

6.35(1/4")

12.70(1/2")

5,040 kcal/h

1Samsung Electronics

Table(cont.)

Item

Power Source

Performance

Electrical

Rating

Features

Dimensions

Weight

Model

Airflow Direction (Indoor)

Compressor Refrigerant / Amount Charged at Rating g Refrigerant Control

Operation Sound

Refrigerant Tubing Connections Max. Allowable Tubing Length m

Refrigerant Tube Diameter

Refrigerant Tube Kit / Accessories

Unit Dimensions Width mm

Package Dimensions Width mm

Weight

Horizontal Vertical

Indoor Hi/Mi/ Low dB-A Outdoor-Hi dB-A

Narrow Tube (in.) Wide Tube (in.)

Height mm

Depth mm Height mm

Depth mm Net kg Shipping kg

/min

AQ18S0GBA

Cool Heat

220V~,60Hz

18,000 BTU/h

Indoor unit Outdoor unit

19,000 BTU/h

13.5 14.0

2.5

187~253

8.3 9.0

1.77 2.00

96.9 98.6

10.16 9.5

Microprocessor / Thermistor

Wireless remote control

24-Hour ON / OFF

3 Steps and Turbo / 2 Step

Manual

Auto

Rotary(Samsung)

R22 / 1,210g

Capillary tube

46 / 44 / 42

Flare type

6.35(1/4")

12.70(1/2")

Optional / Hanger-plate

315 620

1,080 787

205 320 286 692

1,151 909

397 444

13 45 16 49

18,000 BTU/h

AQT18S0GEA

Cool Heat

220-240V~,50Hz

4,000 kcal/h

13.5 14.0

8.0 8.8

1.85 2.00

97.9 98.8

9.73 10.00

Microprocessor / Thermistor

Wireless remote control

24-Hour ON / OFF

3 Steps and Turbo / 2 Step

Optional / Hanger-plate

Indoor unit Outdoor unit

315 620

1,080 787

205 320 286 692

1,151 909

397 444

13 54 16 58

20,000 BTU/h

2.5

198~264

Manual

Auto

Rotary(Samsung)

R22 / 1,650g

Capillary tube

48 / 46 / 44

Flare type

6.35(1/4")

12.70(1/2")

5,040 kcal/h

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SH24ZS6A / AQ24S6GEA

Cool Heat

220-240V~,50Hz

6.8 kW - 7.0 kW -

14.0 14.5

3.0

198~264

11.2 11.8

2.42 2.65

92.6 92.6

9.6 9.1 82

Microprocessor / Thermistor

Wireless remote control

24-Hour ON / OFF

3 Steps and Turbo / 2 Step

Manual

Auto

Rotary(Samsung)

R22 / 1,370g

Capillary tube

48 / 46 / 44

Flare type

6.35(1/4")

15.88(5/8")

Optional / Hanger-plate

Indoor unit Outdoor unit

315 638

1,080 880

205 310 286 704

1,151 1,023

397 413

13 64.5 16 68.5

AQ24S6GBA

Cool Heat

220V~,60Hz

24,000 BTU/h

Indoor unit Outdoor unit

25,000 BTU/h

14.0 14.5

3.0

187~253

10.5 11.5

2.30 2.55

99.6 96.6

10.4 9.4 51

Microprocessor / Thermistor

Wireless remote control

24-Hour ON / OFF

3 Steps and Turbo / 2 Step

Manual

Auto

Rotary(Samsung)

R22 / 1,350g

Capillary tube

50 / 48 / 46

Flare type

6.35(1/4")

15.88(5/8")

Optional / Hanger-plate

315 638 680 880 415 310

1,122 704

895 1,023 429 413

13 64 16 68

AQT24S6GBA

Cool Heat

220V~,60Hz

24,000 BTU/h

5,040 kcal/h

14.0 14.5

187~253

13 13.5

2.6 2.8

90.9 94.3

9.2 8.6

Microprocessor / Thermistor

Wireless remote control

24-Hour ON / OFF

3 Steps and Turbo / 2 Step

Reciprocation(Tecumseh)

R22 / 1,600g

Capillary tube

48 / 46 / 44

Flare type

6.35(1/4")

15.88(5/8")

Optional / Hanger-plate

Indoor unit Outdoor unit

315 638

1,080 880

205 310 286 704

1,151 1,023

397 413

13 64.5 16 68.5

24,000 BTU/h

3.0

Manual

Auto

6,048 kcal/h

6.8 kW - 6.9 kW -

AQT24S6GEA

Cool Heat

220-240V~,50Hz

14.0 14.5

3.0

198~264

11.5 1 1.5

2.78 2.82

92.6 92.6

9.4 9.6 82

Microprocessor / Thermistor

Wireless remote control

24-Hour ON / OFF

3 Steps and Turbo / 2 Step

Manual

Auto

Reciprocation(Bristol)

R22 / 1,300g

Capillary tube

48 / 46 / 44

Flare type

6.35(1/4")

15.88(5/8")

Optional / Hanger-plate

Indoor unit Outdoor unit

315 638

1,080 880

205 310 286 704

1,151 1,023

397 413

13 64.5 16 68.5

3Samsung Electronics

1-2 Pressure Graph

7.00

32.4/24.0

30.6/22.5

27.0/19.0

24.0/17.0

21.5/15.0

6.00

5.00

4.00

3.00 25 30 35 40 45

7.00

32.4/24.0

30.6/22.5

27.0/19.0

24.0/17.0

21.5/15.0

6.00

5.00

4.00

3.00 25 30 35 40 45

■ 18K BTU

Low pressure(kg/cm

Outdoor inlet air D.B. temp(˚C)

Indoor inlet air D.B. temp(˚C)

■ 24K BTU

Low pressure(kg/cm

Outdoor inlet air D.B. temp(˚C)

Indoor inlet air D.B. temp(˚C)

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2. Operating Instructions

2-1 The Feature of Key in remote control

FUNCTION OF KEYNAMED OF KEYNo

(UP)

On/Off & Timer Set/Cancel button. Press the button to stop and run the air conditioner or On/Off timer set up.

Mode selection button. Each time you press this button, Mode is changed in the following order.

Temperature adjustment button(UP). To increase the temperature by the pressing the temperature button.

: Auto Mode : Fan Only : Cool Mode : Heat Mode : Dry Mode

(DOWN)

Temperature adjustment button(DOWN). To decrease the temperature by the pressing the temperature button.

Turbo/Sleep mode selection button. Press the button one or more times until appears. The air conditione cools or heats the room as quickly as possible. After 30minutes, the air conditioner is reset automatically to the previous mode.

Turbo/Sleep mode selection button. Press the button one or more times until appears. The sleep timer can be used when you are cooling or heating your room to switch the air conditioner off automatically after a period of six hours.

Fan speed adjustment button. Each time you press this button,

FAN SPEED is changed in the following order.

Swing button. It adjusts the airflow to upward and downward.

On Timer button. 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.

Off Timer button. 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.

Energy Saving button. If you wish to save energy when using your air conditioner, select the Energy saving

mode with the button.

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Operating Instructions

2-1-1 Name & Function of Key in remote control

1. AUTO MODE : In this mode, operation mode(COOL, HEAT) is selected automatically by the room temperature of initial operation.

Room Temp Tr≥ 21°C+∆T 21°C +∆T>Tr

Cool Operation (Set Temp:24˚C+∆T) Heat Operation (Set Temp:22˚C+∆T)

Operation Type

∆T= -1°C, -2°C, 0°C, +1°C, +2°C ∆T is controlled by setting temperature

up/down key of remote control

2. COOL MODE : The unit operates according to the difference between the setting and room temperature. (18°C~30°C)

3. HEAT MODE : The unit operates according to the difference between the setting and room temperature. (16°C~30°C) *Prevention against cold wind : In order to prevent the

cool air from flowing out at the heat mode, the indoor fan does not operate or operates very slowly in the following cases. At this time, the indoor heat exchanger will be preheating.

- For 3~5 minutes after the initial operation

- For deicing operation

- The operation of an indoor fan in accordance with the temperature of an indoor heat exchanger

The temperature of

indoor heat exchanger

below 28˚C

28˚C~below 34˚C

34˚C~below 40˚C

above 40˚C

Indoor fan speed

off

LL Speed

L Speed

Setting Speed

*High temperature release function : It is a function to

detect an outdoor overload by the sensor of an indoor heat exchanger and to turn the outdoor fan or the compressor ON/OFF for safety.

*Deice : Deicing operation is controlled by indoor unit's

heat exchanger temperature and accumulating time of compressor's operation. Deice ends by sensing of the processing time by deice condition.

4. DRY MODE : Has 3 states, each determined by room temperature. The unit operates in DRY mode. *Compressor ON/OFF Time is controlled compulsorily

(can not set up the fan speed, always breeze).

*Protective function : Low temperature release.

(Prevention against freeze)

5. TURBO MODE : This mode is available in AUTO, COOL, HEAT, DRY, FAN MODE. When this button is pressed at first, the air conditioner is operated "powerful" state for 30 minutes regardless of the set temperature, room temperature. When this button is pressed again, or when the operating time is 30 minutes, turbo operation mode is canceled and returned to the previous mode. *But, if you press the TURBO button in DRY or FAN

mode that is changed with AUTO mode automatically.

6. SLEEP MODE : Sleep mode is available only in COOL or HEAT mode. The operation will stop after 6 hours. *In COOL mode : The setting temperature is

automatically raised by 1°C each 1hour When the temperature has been raised by total of 2°C, that temperature is maintained.

*In HEAT mode : The setting temperature is automatically

dropped by 1°C each 1hour. When the temperature has been dropped by total of 2°C, that temperature is maintained.

7. FAN SPEED : Manual (3 step), Auto (4 step) Fan speed automatically varies depending on both the difference between setting and the room temperature.

8. COMPULSORY OPERATION : For operating the air conditioner without the remote control. *The air conditioner starts up in the most suitable mode

for the room temperature:

Room Temperature

Less than 21˚C

21˚C or above

Operating Mode

Heat Cool

Temperature Setting

22˚C approx. 24˚C approx.

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Operating Instructions

9. SWING : BLADE-H is rotated vertically by the stepping motor. *Swing Set : Press the button under the remote

control is displayed on LCD the and the blades move up and down. If the one more time press the

button, blades location is stop.

10. SETTING THE ON/OFF TIMER. : *ON TIMER : The On Timer enables you to switch on the

air conditioner automatically after a given period of time. You can set the period of time from 30 minutes to 24 hours.

*OFF TIMER : The Off Timer enables you to switch off

the air conditioner automatically after a given period of time. You can set the period of time from 30 minutes to 24 hours.

11. SELF DIAGNOSIS

LAMP or DISPLAY Monitor

Description

Indoor unit room temperature sensor error(open or short)

Indoor unit heat exchanger temperature sensor error(open or short)

Indoor fan motor malfunction

EEPROM error

Option error(option wasn’t set up or option data error)

OPERATION TIMER TURBO

: Lamp off

: Lamp flickering

12. BUZZER SOUND : Whenever the On/Off button is pressed or whenever change occurs to the condition which is set up or select, the compulsory operation mode, buzzer is sounded "beep".

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2-2 Installation

2-2-1 Selecting Area for Installation

Select an area for installation that is suitable to the customer's needs.

2-2-1(a) Indoor Unit

1. Make sure that you install the indoor unit in an area providing good ventilation. It must not be blocked by an obstacle affecting the airflow near the air inlet and the air outlet.

2. Make sure that you install the indoor unit in an area allowing good air handling and endurance of vibration of the indoor unit.

3. Make sure that you install the indoor unit in an area where there is no source of heat or vapor nearby.

4. Make sure that you install the indoor unit in an area from which hot or cool air is spread evenly in a room.

5. Make sure that you install the indoor unit in an area away from TVs, audio units, cordless phones, fluorescent lighting fixtures and other electrical appliances (at least 1 meter).

6. Make sure that you install the indoor unit in an area which provides easy pipe connection with the outdoor unit, and easy drainage for condensed water.

3. Make sure that you install the outdoor unit in area providing good ventilation and which is not dusty. It must not be blocked by any obstacle affecting the airflow near the air inlet and the air outlet.

4. Make sure that you install the outdoor unit in area free from animals or plants.

5. Make sure that you install the outdoor unit in area not blocking the traffic.

6. Make sure that you install the outdoor unit in area easy to drain condensed water from the indoor unit.

7. Make sure that you install the outdoor unit in area which provides easy connection within the maximum allowable length of a coolant pipe(18✳✳:15meters, 24✳✳:20meters).

Note

1. Add (18✳✳: 20g, 24✳✳: 30g) of refrigerant (R22) for every 1 meter if the pipe length exceeds the standard pipe length of 5 meters.

2. Maintain a height between the indoor and outdoor units of less than 8 meters.

8. Make sure that you install the outdoor unit in an area which is large enough to accommodate the measurements.

7. Make sure that you install the indoor unit in an area which is large enough to accommodate the measurements shown in figure on the next page.

2-2-1(b) Outdoor Unit

1. Make sure that you install the outdoor unit in area not exposed to the rain or direct sun light. (Install a separate sunblind if exposed to direct sun light.)

2. Make sure that you install the outdoor unit in area allowing good air moment, not amplifying noise or vibration, especially to avoid disturbing neighbors. (Fix the unit firmly if it is mounted in a high place.)

• It is harmful to the air conditioner if it is used in the following environments: greasy areas (including areas near machines), salty areas such as coast areas, areas where sulfuric gas is present such as hot spring areas. Contact your dealer for advice.

2-2-1(c) Remote Control Unit

1. Make sure that you install the remote control unit in an area free from obstacles such as curtains etc, which may blocksignals from the remote control unit.

2. Make sure that you install the remote control unit in an area not exposed to direct sunlight, and where there is no source of heat.

3. Make sure that you install the remote control unit in an area away from TVs, audio units, cordless phones, fluorescent lighting fixtures and other electrical appliances (at least 1 meter).

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3. Disassembly and Reassembly

Stop operation of the air conditioner and remove the power cord before repairing the unit.

3-1 Indoor Unit

No Parts Procedure Remark

1 Front Panel

1) Stop the air conditioner operation and block the main power.

2) Detach tape of Front Panel upper.

3) Open the upper Front Grille by pulling right and left sides of the Grille.

4) Slide the lower Front Grille down, then disassemble it by pulling it forwards.

5) Take the left and right Filter out.

6) Loosen one of the right screw and detach the Terminal Cover.

7) Detach the thermistor from the Front Grille.

8) Loosen 5 fixing screws of Front Grille.

9) Pull the lower left and right of discharge softly for the outside cover to be pulled out.

10) In order to disassemble the Panel Grille,

press, in order, the left, center, and right of the upper side of the Panel Grille with the palm of the hand to remove the hook. And then disassemble the Panel Grille.

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Disassembly and Reassembly

No Parts Procedure Remark

Electrical Parts

(Main PCB)

Tray Drain

Heat Exchanger

1) Take all the connector of PCB upper side out.(Including Power Cord)

2) Detach the outdoor unit connection wire from the Terminal Block.

3) If pulling the main PCB up. It will be taken out.

1) Pull Tray Drain out from the Back Body.

1) Loosen 2 fixing earth screws of right side.

2) Detach the Connection Pipe.

3) Detach the Holder Pipe at the rear side.

4) Loosen 2 fixing screws of right and left side.

5) Lifting the Heat Exchanger up a little to push the up side for detach from the indoor unit.

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Disassembly and Reassembly

No Parts Procedure Remark

5 Fan Motor

Cross Fan

1) Loosen the 4 fixing screws and detach the Motor Holder.

2) Loosen 1 fixing screw of Fan Motor. (By use of M3 wrench)

3) Detach the Fan Motor from the Fan.

4) Detach the Fan from the left Holder Bearing.

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3-2 Outdoor Unit

No Parts Procedure Remark

Cabinet

Fan Motor

Propeller Fan

1) Turn off the unit and remove the power cable.

2) Detach the Top Cover.

3) Detach the Control Box Cover.

4) Unplug the Ass'y Cable.

5) Detach the Cabinet-Side.

6) Detach the Cabinet-Front.

* When you assemble the parts, check if the

each parts and Component Electric Box are fixed firmly.

1) Detach the Nut Flange. (Turn to the clockwise)

2) Disassemble the Propeller Fan.

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