Samsung AQ12A5MB, AQ12A5ME, AQ09A5ME, SH09ZA5, AQ07A5ME Service Manual

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ROOM AIR CONDITIONER

INDOOR UNIT

AQ12A5(6)MB AQ12A5(6)ME AQ09A5(6)ME SH09ZA5(6) AQ07A5(6)ME SH07ZA5(6) AQ09A7(8)ME SH09ZA7(8) AQ07A7(8)ME SH07ZA7(8)

SERVICE

OUTDOOR UNIT

UQ12A5(6)MB UQ12A5(6)ME UQ09A5(6)ME SH09ZA5(6)X UQ07A5(6)ME SH07ZA5(6)X UQ09A7(8)ME SH09ZA7(8)X UQ07A7(8)ME SH07ZA7(8)X

Manual

CONTENTSAIR CONDITIONER

1. Precautions

2. Product Specifications

3. Operating Instructions 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

ELECTRONICS

Printed in Korea. Code No. DB81-00181A(2)

1. Precautions

1. Warning: Prior to repair, disconnect the power cord from the circuit breaker.

2. Use proper parts: Use only exact replacement 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 equipment 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 resistance between the power cord and the ground terminal. The resistance must be greater than 30 megohms.

Fig. 1-1 Avoid Dangerous Contact

Fig. 1-2 No Tapping and No Extension Cords

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 surrounding area.

Fig. 1-3 No Kids Nearby!

O.K

Fig. 1-4 Clean the Unit

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1-1

MEMO

1-2

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2. Product Specifications

2-1 Table

Model

Item

Type -

Cooling BTU/h(KW) Heating BTU/h(KW) Dehumiditying I/h

Performance

Power

Size

Heat exchanger Refrigerant control unit Freezer oil capacity Refrigerant to change(R-22) Protection device Cooling test Condition Maximum operation Condition

Air volume

Noise

Energy efficiency ratio Power V-Hz Power Consumption

Operating Current

Power factor Starting current A Power cord Fuse capacity A

Outer Width x Height mm Dimension x Depth inch Weight

Refrigerant pipe Drain hose D x L(mm)

Compressor Type

Blower Type

Cooling Heating Cooling Heating Cooling Heating

Length m Number of core wire

Liquid GAS

Motor Type

Rated output

Motor Type

Rated output W

m3/min

BTU/h W

mm x L(MT) mm x L(MT)

AQ12A5(6)MB

Indoor unit Outdoor unit

Wall-mounting

12000 13000

1.9

7.4 19

8.1 19 41 53 41 53

9.375

10.0

1-220 -60

1280 1300

790 x 245 x 165 762 x 532 x 280

31.1 x 9.6 x 6.5 30 x 20.9 x 11

7.7 35

Cross-flow Propeller

Resin steel

2ROW 12STEP 1ROW 20STEP

MRA 12002-9200/MRA 12002-12008

6.0

6.2 97

95.3 30

250V-10 / 16A

ø6.35 x 5 ø12.7 x 5

ø18 x 2000

Rotary

15 25

CAPILLARY TUBE

410 800

Indoor unit Outdoor unit

790 x 245 x 165 762 x 532 x 280

31.1 x 9.6 x 6.5 30 x 20.9 x 11

Cross-flow Propeller

2ROW 12STEP 1ROW 20STEP

INDOOR UNIT : DB27°C WB19°C

INDOOR UNIT : DB32°C WB23°C

AQ12A5(6)ME

Wall-mounting

12000 (3.4) 13000 (3.7)

1.9

7.4 19

8.1 19 41 53 41 53

10.0

10.6

1-220 / 240-50

1200 1230

5.4

5.5

96.6

97.2 30

250V-10 / 16A

7.7 35 ø6.35 x 5 ø12.7 x 5

ø18 x 2000

Rotary

Resin steel

15 25

CAPILLARY TUBE

410 820

MRA 12030-12008

AS07A3(4)ME/SC07ZA3(4)

AQ09A5(6)ME/SH09ZA5(6)

Indoor unit Outdoor unit

5.3 20.5

6.0 18

6.7 18

33 47

38 51

790 x 245 x 165 660 x 470 x 242

790 x 245 x 165 660 x 497 x 235

31.1 x 9.6 x 6.5 6.0 x 18.5 x 9

31.1 x 9.6 x 6.5 26 x 19.6 x 9.3

7.7 25

7.7 29

Cross-flow Propeller

Resin steel

15 25

2ROW 12STEP 1ROW 20STEP

2ROW 12STEP 1ROW 18STEP

CAPILLARY TUBE

MRA 12086-12008

Wall-mounting

7500

9000 (2.72)

10000 (2.95)

1.9

1.4

10.0

9.375

10.752

1-220 / 240-50

750

960

930

3.3

4.4

4.2

98.8

94.9

96.3

250V-10 / 16A

ø6.35 x 5

ø9.52 x 5

ø18 x 2000

Rotary

360

600

670

RAC 12054-9622

AS12A1(2)ME/SC12ZA1(2)/SC12ZA1(2)A

AQ07A5(6)ME/SH07ZA5(6)

Indoor unit Outdoor unit

Wall-mounting

12000

7500 (2.3)

8000 (2.38)

1.4

0.9

7.4 19

5.6 18

5.5 18

38 50

35 50

10.3

10.0

10.959

1-220 / 240-50

1170

750

730

5.0

3.3

101.7

98.8

96.7

250V-10 / 16A

790 x 245 x 165 720 x 532 x 245

790 x 245 x 165 660 x 497 x 235

31.1 x 9.6 x 6.5 28.3 x 21.0 x 9.6

31.1 x 9.6 x 6.5 26 x 19.6 x 9.3

7.7 38.0

7.7 29

ø6.35 x 5

ø12.7 x 5

ø9.52 x 5

ø18 x 2000

ROTARY

Rotary

- 1215

Cross-flow Propeller

Resin steel

15 25

2ROW 12STEP 2ROW 20STEP

2ROW 12STEP 1ROW 18STEP

CAPILLARY TUBE

410

360

1070

630

MRA 12030-12008

RAC 12086-9622

OUTDOOR UNIT : DB35°C WB24°C OUTDOOR UNIT : DB43°C WB26°C

AQ09A7(8)ME/SH09ZA7(8)

Indoor unit Outdoor unit

Wall-mounting

9000 (2.64)

10000 (2.93)

1.4

6.0 20.5

6.7 20.5 38 51 38 51

9.47

10.75

1-220 / 240-50

950 930

4.2

3.9

98.3

10.37 30

250V-10 / 16A

790 x 245 x 165 660 x 470 x 242

31.1 x 9.6 x 6.5 26 x 18.5 x 9.5

7.7 2.5 ø6.35 x 5 ø9.52 x 5

ø18 x 2000

Rotary

Cross-flow Propeller

Resin steel

15 25

2ROW 12STEP 1ROW 18STEP

CAPILLARY TUBE

360 670

MRA 12110-12008

790 x 245 x 165 660 x 470 x 242

31.1 x 9.6 x 6.5 26 x 18.5 x 9.5

2ROW 12STEP 1ROW 18STEP

AQ07A7(8)ME/SH07ZA7(8)

Indoor unit Outdoor unit

Wall-mounting

7500 (2.2)

8000 (2.34)

0.9

5.6 20.5

5.5 20.5 35 50 35 50

10.0

10.96

1-220 / 240-50

750 730

3.3

3.2

98.8

99.2 30

250V-10 / 16A

7.7 25 ø6.35 x 5 ø9.52 x 5

ø18 x 2000

Rotary

Cross-flow Propeller

Resin steel

15 25

CAPILLARY TUBE

360 630

MRA 12086-12008

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2-1

3. Operating Instructions and Installation

3-1 Operating Instructions

3-1-1 Name & Function of Key in remote controller

NAMED OF KEY

(UP)

(DOWN)

FUNCTION OF KEY

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

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

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

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

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

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.

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

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

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Adjust air flow vertically.

The ON Timer enables you to switch onthe air conditioner automatically after a given period of time that is from 30 minutes to 24 hours. To cancel the On Time, press the (Set/Cancel) 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 the On Time, press the (Set/Cancel) button.

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.

3-1

Operating Instructions and Installation

3-1-1 Name & Function of Key in remote controller

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

ÆT= -1¡C, -2¡C, 0¡C+1¡C+2¡C ÆT is controlled by setting temperature

up/down key of remote controller

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 : For about 3~5 minutes after initial operation, thermo control or Òde-iceÓ, the indoor fan will either not operate or operate very slowly, then switch to the selected fan speed. This period is to allow the indoor unit's heatexchanger to prewarm before emitting warm air. *High temperature release function : The outdoor unit for and compressor ON/OFF control for safety operation, when the overheat is heat exchanger of indoor unit. *De-ice : Deicing operation is controlled by indoor unit's heat exchanger temperature and accumulating time of compressor's operation. De-ice end by sensing of the processing time by de-ice Condition.

Cool Operation (Set Temp:AUTO SETTING)

Heat Operation (Set Temp : 22°C+∆T)

Operation Type

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 ÒpowerfulÓ 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 droped by 1¡C each 1hour. When the temperature has been droped 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.

3-2

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Operating Instructions and Installation

8. COMPULSORY OPERATION : For operating the air conditioner without the remote controller. *AUTO : The operating is the same function that AUTO MODE in the remote controller. And each time you press the button the 5WAY func-tion is changed as follow.

STD ➝ NATURE ➝ POWER ➝ SAVING ➝

SILENCE ➝ POWER OFF

Each time you press This button, 5WAY

function is changed in the following order

STD(standard) ➝ NATURE ➝ POWER(High-speed) ➝ Saving(PowerSaving) ➝ Quite ❊ STD(standard)( ) : General operation

Mode

❊ NATURE( ) : The unit is operated

according to health pattern control

❊ POWER( ) : The unit is

operated in powerful state

❊ SAVING( ) : The unit is operated in

power saving state

❊ SILENCE( ) : The unit is operated

quitely Each mode has Auto, Cool and SLEEP operation designed in advance.

9. SWING : BLADE-H is rotated vertically by the stepping motor. *Memory louver : When ON/OFF button is pressed at stop state, the BLADE-H returns to its original location which is operating state before stop *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.

OFF TIMER : The air Conditioner is turned OFF at a specified time using . *ON TIMER : Only timer LED lights on. *OFF TIMER : Both timer and operation LED lights on.

11. SELF Diagnosis

LED DISPLAY

TIMER

Check Point

Indoor unit room temperature sensor error(open or short)

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

Indoor fan mal function

EEPROM error

Option error(option wasnÕt set up or option data error)

LED

blinking

: LED off

STD NATURE POWER SAVING SILENCE

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"

10. 24-Hour ON/OFF Real Setting Timer. : The air conditioner is turned ON at a specified time using .

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3-3

MEMO

3-4

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4. Disassembly and Reassembly

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

4-1 Indoor Unit

No Parts Procedure Remark

1 Front Grille 1) Stop the air conditioner operation and block

the main power.

2) Separate tape of front panel upper.

3) Contract the second finger to the left, and right handle and pull to open the inlet grille.

4) Take the left and right filter out.

*Taking off the deodorizing filter.

5) Loosen one of the right fixing screw and separate the terminal cover.

6) Loosen three fixing screws of front grille.

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

8) Pull softly the lower part of discharge and push it up.

Caution;

Assemble the front panel and fix the hooks of left and right.

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4-1

Disassembly and Reassembly

No Parts Procedure Remark

Ass’y Tray Drain.

Electrical Parts

(Main PCB)

Heat Exchanger

1) Do “1”above

2) Take all the connector of PCB upper side out. (Inclusion Power cord)

3) Separate the outdoor unit connection wire from the terminal block.

4) If pulling the Main PCB up. it will be taken out.

1) Do “1”, “2”, above Separate the drain hose from the extension

drain hose.

2) Pull tray drain out from the back body.

1) Do “1” and “2”, “3”, above

2) Loosen two fixing earth screws of right side.

3) Separate the connection pipe.

4) Separate the holder pipe at the rearside.

5) Loosen the three fixing screws of right and left side.

6) Lifting the heat exchanger up a little to push the up side for separation from the indoor unit.

Fan Motor and

1) Do “1” “2” ”3” “4”, above.

Cross Fan

2) Loosen the fixing two screws and separate the motor holder.

3) Loosen the fixing screw of fan motor. (By use of M3 wrench)

4) Separate the fan motor from the fan.

5)Separate the fan from the left holder bearing.

4-2

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4-2 Outdoor Unit

• UQ12A5(6)M✳

No Parts Procedure Remark

1 Common Work 1) Loosen the fixing screw and separate the

Handle-Cabi RH.

2) Separate the connection wire from the terminal block.

3) Loosen 6 fixing screws and separate the upper cabinet.

4) Loosen the fixing screw of Ass'y E-part.

5) Loosen 5 fixing screws and separate the side cabinet.

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4-3

Disassembly and Reassembly

No Parts Procedure Remark

2 Fan-Motor 1) Loosen 4 fixing screw of the Guard-Fan.

2) Remove the nut flange (Turn to the right to remove, as it is a left hand screw)

3) Separate the fan.

4) Loosen four fixing screws to separate the motor.

4-4

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Disassembly and Reassembly

• SH09ZA5(6)X

• UQ09A5(6)M✳

• SH07ZA5(6)X

• UQ07A5(6)M✳

No Parts Procedure Remark

Common Work

1) Loosen the fixing two screws and separate the cover E-parts.

2) Separate the connection wire from the terminal block.

3) Loosen five fixing screws and separate the cabi Upper.

4) Loosen two fixing screws of Ass'y E-part.

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Fan and Motor

5) Loosen nine fixing screws and separate the cabi side.

1) Do “1”, above.

2) Loosen four screws and seperaate Guard Fan from front cabinet

4-5

Disassembly and Reassembly

No Parts Procedure Remark

2) Remove the nut flange (Turn to the right to remove, as it is a left hand screw)

3) Separate the fan.

4) Loosen four fixing screws to separate the motor.

Heat Exchanger

1) Do “1”, 2 above.

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

3) Disassemble the inlet and outlet pipe by welding.

4) Separate the heat exchanger.

Compressor

1) Do “1”, above.

2) Loosen the nut on the terminal cover and open the terminal cover.

3) Disassemble the inlet and outlet pipe of compressor by welding.

4) Disassemble the inlet and outlet pipe of condenser by welding

5) Loosen the three bolts of the lower part.

6) separate the compressor.

4-6

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