Samsung AQ18P0GEA, SH24ZP6B, AQT18P0GBA, AQT18P0GEA, AQ24P6GBA Service Manual

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ROOM AIR CONDITIONER

INDOOR UNIT

SH18ZP0B AQ18P0GBA AQ18P0GEA AQT18P0GBA AQT18P0GEA SH24ZP6B AQ24P6GBA AQ24P6GEA AQT24P6GBA AQT24P6GEA

SERVICE

OUTDOOR UNIT

SH18ZP0BX UQ18P0GBA UQ18P0GEA UQT18P0GBA UQT18P0GEA SH24ZP6BX UQ24P6GBA UQ24P6GEA UQT24P6GBA UQT24P6GEA

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

SH18ZP0B / AQ18P0GEA

Cool Heat

220-240V~,50Hz

18,000 BTU/h-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

Indoor unit Outdoor unit

315 620

1,080 787

205 320 286 692

1,151 909

397 444

13 45 16 49

AQ18P0GBA

Cool Heat

220V~,60Hz

18,000 BTU/h-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 35

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

Indoor unit Outdoor unit

315 620

1,080 787

205 320 286 692

1,151 909

397 444

13 45 16 49

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

AQT18P0GBA

Cool Heat

220V~,60Hz

18,000 BTU/h 4,000 kcal/h 20,000 BTU/h 5,040 kcal/h

13.5 14.0

2.5

187~253

8.5 9.5

1.87 2.10

99.0 99.0

9.63 9.52 35

Microprocessor / Thermistor

Wireless remote control

24-Hour ON / OFF

3 Steps and Turbo / 2 Step

Manual

Auto

Rotary(Samsung)

R22 / 1,570g

Capillary tube

48 / 46 / 44

Flare type

6.35(1/4")

12.70(1/2")

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

18,000 BTU/h 4,000 kcal/h 20,000 BTU/h 5,040 kcal/h

AQT18P0GEA

Cool Heat

220-240V~,50Hz

13.5 14.0

2.5

198~264

8.0 8.8

1.85 2.00

97.9 98.8

9.73 10.00 35

Microprocessor / Thermistor

Wireless remote control

24-Hour ON / OFF

3 Steps and Turbo / 2 Step

Manual

Auto

Rotary(Samsung)

R22 / 1,650g

Capillary tube

48 / 46 / 44

Flare type

6.35(1/4")

12.70(1/2")

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

Samsung Electronics2

SH24ZP6B / AQ24P6GEA

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

AQ24P6GBA

Cool Heat

220V~,60Hz

24,000 BTU/h-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

Indoor unit Outdoor unit

315 638 680 880 415 310

1,122 704

895 1,023 429 413

13 64 16 68

AQT24P6GBA

Cool Heat

220V~,60Hz

24,000 BTU/h 5,040 kcal/h 24,000 BTU/h 6,048 kcal/h

14.0 14.5

3.0

187~253

13 13.5

2.6 2.8

90.9 94.3

9.2 8.6 73

Microprocessor / Thermistor

Wireless remote control

24-Hour ON / OFF

3 Steps and Turbo / 2 Step

Manual

Auto

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

AQT24P6GEA

Cool Heat

220-240V~,50Hz

6.8 kW - 6.9 kW -

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

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)

Samsung Electronics4

2. Operating Instructions

Low Medium High

Automatic(rotated : )

2-1 The Feature of Key in remote control

NAMED OF KEYNo

(On/Off)

(UP)

(DOWN)

On/Off button. Press the button to stop or run the air conditioner.

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

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

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

Fan speed adjustment button. Each time you press this button, FAN SPEED is changed in the following order.

FUNCTION OF KEY

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

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

Turbo button. The air conditioner cools or heats the room as quickly as possible. After 30minutes, the air conditioner is reset automatically to the previous mode.

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

Sleep button. 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 6 hours.

5Samsung Electronics

Operating Instructions

NAMED OF KEYNo

Anion button. Press the button to generate ion from the air conditioner.

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 set the operating time, press the button one or more times until the required time display.

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 set the operating time, press the button one or more times until the required time display.

Timer Set/Cancel button. After setting On Timer or Off Timer, press the button to set it completely.

And press the button again to cancel On Timer or Off Timer set.

FUNCTION OF KEY

Digital On/Off button. If you want to turn off the display during operation press the button.

Samsung Electronics6

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

Operating Instructions

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 automatical-

ly 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.

7Samsung Electronics

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.

1 1. GENERATING ANION :

The air conditioner can generate anion with an ionizer in the indoor unit.

12. SELF DIAGNOSIS

Error Mode

Indoor unit room temperature sensor error (open or short)

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

Indoor FAN MOTOR error : Keep the RPM value 450 below for 15 seconds

EEPROM error

Error in option In case of No option set-up In case of option data error

DISPLAY 7-SEGMENT

Operation Off Operation On

OFF E1

OFF E2

OFF E3

OFF E6

All lamp

blinking

All lamp

blinking

Remark

13. 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".

Samsung Electronics8

2-2 Replace PCB Model option

2-2-1 Replace PCB model option

Remove power cord

Replace the PCB module

Check the connection and plug in

Does all display lamp blink?

Yes

Refer to set up the Model option(15~17page)

Replace another PCB

9Samsung Electronics

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

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

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.

Samsung Electronics10

Disassembly and Reassembly

No Parts Procedure Remark

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.

Electrical Parts

(Main PCB)

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.

Tray Drain

1) Pull Tray Drain out from the Back Body.

11Samsung Electronics

Disassembly and Reassembly

No Parts Procedure Remark

Heat Exchanger

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 3 fixing screws of right and left side.

5) Detach the Heat Exchanger from the indoor unit.

Fan Motor

Cross Fan

1) Loosen 2 fixing screws and detach the Motor Holder.

2) Loosen 1 fixing screw of Fan Motor. (with a M3 wrench)

3) Detach the Fan Motor from the Fan.

4) Detach the Fan from the left Holder Bearing.

Samsung Electronics12

+ 29 hidden pages

Samsung AQ18P0GEA, SH24ZP6B, AQT18P0GBA, AQT18P0GEA, AQ24P6GBA Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual