Samsung AQ07ACVE, AQ09ACVE, AQ12ACVE, SH07CA1, SH09CA1 Service Manual

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ROOM AIR CONDITIONER

INDOOR UNIT AQ07ACVE AQ09ACVE AQ12ACVE SH07CA1 SH09CA1 SH12CA1

SERVICE

OUTDOOR UNIT UQ07ACVE UQ09ACVE UQ12ACVE

SH07CA1X SH09CA1X SH12CA1X

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. DB81-00143A(1)

1. Precautions

O.K

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.

dangerous

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!

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

Item

T ype

Cooling Btu/h Dehumidifying l/h Heating Btu/h Low temp. heating Btu/h Air volume Cooling m3/min

Perfor-

mance

Noise Cooling dB

Energy Cooling Btu/h.W Efficiency ratio Heating Btu/h.W Power Ø-V-Hz Power Cooling W Consumption Heating W Operating Current Cooling A

Power factor Cooling %

Power

Starting current A Power cord Length m

Fuse capacity A Outer Width x Height mm dimension x Depth inch Weight kg Refrigerant pipe Liquid OD(mm) x L(m)

Drain hose ID(mm)x L(m)

Size

Compressor T ype

Blower Type

Heat exchanger Refrigerant control unit Freezer oil capacity Refrigerant to charge(R-407C) Protection device

Cooling test condition Heating test condition Maximum operation Condition

Heating m3/min

Heating dB

Heating A

Heating %

Number of core wire

Gas OD(mm) x L(m)

Motor T ype

Rated output W

Motor T ype

Rated output W

Model

SH07CA1

AQ07ACVE

Indoor unit Outdoor unit

Wall-mounting

7000

1.0

8000

5.3 -

5.7 35 49 49 49

8.7

9.7

1-220/240-50

800 820

3.6

98.2

98.0 17

250V 10/16A

3.15 -

815x298x182 720x532x245

32.08x11.73x7.17 28.35x20.94x9.65

9.6 32 ø6.35 x 5 ø9.52 x 5

ø17 x 2

- Rotary

- 800

Cross-fan Propeller

Resin Steel

35 20

2Row 12Step 1Row 20Step

Capillary tube

362 650

- MRA12086

-12008

Indoor unit : DB27˚C WB19˚C Outdoor unit : DB35˚C WB24˚C Indoor unit : DB20˚C WB15˚C Outdoor unit : DB 7˚C WB 6˚C Indoor unit : DB32˚C WB23˚C Outdoor unit : DB43˚C WB26˚C

SH09CA1

AQ09ACVE

Indoor unit Outdoor unit

Wall-mounting

8700

1.1

10.000

6.5 -

7.0 39 50 39 50

9.3

11.1

1-220/240-50

930 900

4.3

4.5

96.6

96.2 22

250V 10/16A

3.15 -

815x298x182 762x532x280

32.08x11.73x7.17 30.00x20.94x11.02

9.6 34 ø6.35 x 5 ø9.52 x 5

ø17 x 2

- Rotary

- 900

Cross-fan Propeller

Resin Steel

35 20

2Row 12Step 1Row 20Step

Capillary tube

362 750

- MRA12037

-12007

815x298x182 762x532x280

32.08x11.73x7.17 30.00x20.94x11.02

2Row 12Step 2Row 20Step

SH12CA1

AQ12ACVE

Indoor unit Outdoor unit

Wall-mounting

12000

1.8

13500

8.0 -

8.5 42 53 42 53

8.5

8.7

1-220/240-50

1400 1550

6.4

6.9

96.9

96.8 30

250V 10/16A

3.15 -

9.6 39 ø6.35 x 5 ø12.7 x 5

ø17 x 2

- Rotary

- 1445

Cross-fan Propeller

Resin Steel

35 20

Capillary tube

602

1100

- MRA12074

-12007

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2-1

2-2 Dimensions

815 182

298

2-2-1 Indoor Unit

(Front view) (Remote control)

Air in

115

Air out

2-2-2 Outdoor Unit

AQ07ACVE SH07CA1

(Rear view)

245

267

532

(Front view)

720

2245

Installation plate

496

(Rear view)

AQ09ACVE / AQ12ACVE SH09CA1 / SH12CA1

2-2

295

280

(Front view)

532

555

762

(Rear view)

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2-3 Refrigerating Cycle Block Diagram

INDOOR UNIT

Heat exchanger (Evaporator)

OUTDOOR UNIT

Capillary tube

Liquid side

Cross fan

Gas side

2-way valve

3-way valve

Check valve

Capillary tube

Compressor

Heat exchanger (Condenser)

Propeller fan

4-way valve

Cooling

Heating

Gas leak check point

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2-3

MEMO

2-4

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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.

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, DRY) is selected automatically by the room temperature of initial operation.

Room Temp Tr≥ 21°C+∆T 21°C +∆T>Tr

∆T= -1°C, -2°C, 0°C+1°C+2°C ∆T 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 “de-ice”, the indoor fan will either not operate or operate very slowly(510 rpm), then switch to the selected fan speed. This period is to allow the indoor unit's heat-exchanger 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 “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 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.

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, about 43°. If the one more time press the button, blatles location is stop.

10. Quick OFF TIMER: OFF timer (quick timer) allows reservation or cancel the timer on and timer off quickly When OFF timer button is pressed at operating state, LCD displays the polling state sequentially. The LCD also displays the time remaining.

OFF TIMER : The air Conditioner is turned OFF at a specified time using .

OFF TIMER

*ON TIMER : Only timer LED lights on. *OFF TIMER : Both timer and operation LED lights on. *3 minutes delay timer.

12. SELF Diagnosis

LED DISPLAY

oper-

TIMER

ation

FAN

Turbo

Check Point

Interruption of electric power and Power on.

Abnormal condition of the room sensor.

Abnormal condition of the indoor unit's heat exchanger sensor.

Indoor unit fan motor lock.

LED

blinking

: LED off

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"

11. 24-Hour ON/OFF Real Setting Timer. : The air conditioner is turned ON at a specified time using .

ON TIMER

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3-3

3-2 Installation

3-2-1 Selecting Area for Installation

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

3-2-1(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.

(Fix the unit firmly if it is mounted in a

high place.)

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(10 meters).

Note

1. Add 10 grams of refrigerant (R-22) 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 3 meters.

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

shown in figure on the next page.

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

3-2-1(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 neighbours.

Caution :

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.

3-4

3-2-1(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 block signals 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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Cut the piping hole sloped slightly

3-2-2 Installation diagram of indoor unit and outdoor unit

Operating Instructions and Installation

A Indoor unit gas leak test check point

Indoor unit

Piping

Tape vinyl

B Drain hose installation

Cut the piping hole sloped slightly

Piping may be laid to the rear, left, right or down .

Right

Rear

250mm or more

Down

70mm or more

Rear

200mm or more

Left

“H”metere s maximum

Remote control

Remote control holder

Model L H **7**

**9**

**12**

1 2 3 4 5

Piping (Liquid) 1/4" Clamper tube

7K/9K BTU Piping(Gas)3/8” 12K BTU Piping(Gas)1/2”

Installation tube Pipe-connection Vinyl tape Screw Putty Drain hose

6 7 8

Installation plate

15 7 10 7 15 7

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3-5

Operating Instructions and Installation

160

100

3-2-2(a) Fixing the Installation Plate

(Unit : mm)

Installation plate

1. Determine the position of the pipe and drain hose hole using the right figure and drill the hole with an inner diameter of 65mm so that it slants slightly downwards.

Pipe hole (ø65mm)

2. If you are fixing the indoor unit to a… Then follow Steps…

Wall 3.

Window frame 4 to 6.

3. Fix the installation plate to the wall in a manner appropriate to the weight of the indoor unit.

If you are mounting the plate on a concrete wall with

340280

anchor bolts, the anchor bolts must not project by more than 20mm.

4. Determine the positions of the wooden uprights to be attached to the window frame.

3-2-2(b) Purging the Unit

5. Attach the wooden uprights to the window frame in a manner appropriate to the weight of the indoor unit.

410~730

6. Using tapped screws, attach the installation plate to the wooden uprights, as illustrated in the last figure opposite.

On delivery, the indoor unit is loaded with an inert gas. All this gas must therefore be purged before connecting the assembly piping. To purge the inert gas, proceed as follows.

Unscrew the caps at the end of each pipe.

Result : All inert gas escapes from the indoor unit.

• To prevent dirt or foreign objects from getting into

the pipes during installation, do NOT remove the caps completely until you are ready to connect the piping.

3-6

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3-2-2(c) Connecting the Assembly Cable.

N 1 2 3 4

1 5 E32 4

32 4 5 E

The outdoor unit is powered from the indoor unit via the assembly cable. If the outdoor unit is more than five metres away from the indoor unit, the cable must first be extended to a maximum of ten metres.

1. Extend the assembly cable if necessary.

2. Open the front grille by pulling on the tabs on the lower right and left sides of the indoor unit.

Indoor unit

Earth terminal

Outdoor unit

Earth terminal

3. Remove the screw securing the connector cover.

4. Pass the assembly cable through the rear of the indoor unit and connect the assembly cable to terminals 1(N) to 4.

• Each wire is labelled with the corresponding terminal number.

5. Firmly fix the ass’y cable with clamp wire holdet.

6. Pass the other end of the cable through the 65mm hole in the wall.

7. Replace the connector cover, carefully tightening the screw.

8. Close the front grille.

9. For further details on how to plug the other end of the assembly cable into the outdoor unit, refer to page 3-8.

Operating Instructions and Installation

3-2-2(d) Installing and Connecting the Indoor Unit Drain Hose

Care must be taken when installing the drain hose for the indoor unit to ensure that any condensation water is correctly drained outside.l When passing the drain hose through the 65mm hole drilled in the wall, check that none of the following situations occur.

To install the drain hose, proceed as follows.

1. If necessary, connect the 2-metre extension to the drain hose.

2. If you are using the extension, insulate the inside part of the extension drain hose with a shield.

3. Pass the drain hose under the refrigerant piping, taking care to keep the drain hose tight.

4. Pass the drain hose through the hole in the wall, making sure that it is sloping downwards, as

The hose must NOT slope upw ards.

The end of the drain hose must NOT be placed in water.

shown in the illustrations above.

Shield

Do NOT bend the hose in different directions.

Keep a clearance of at least 5cm between the end of the hose and the ground.

Do NOT place the end of the drain hose in a hollow.

The hose will be fixed permanently into position once the whole installation has been tested for gas leaks;

Drain hose Extension drain hose

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3-7

Operating Instructions and Installation

3-2-2(e) Outdoor unit installation

Wiring connection

1. Remove the cover-E parts.

2. Firmly connect the cable connector in the terminal block.

3. Fasten the M4 ring terminal to the hole marked

4. Firmly fix the ass'y cable with clamp wire holder.

5. Assemble the cover-E parts.

6. To prevent the entry of water, form a trap of the ass'y cable as illustrated in the installation diagram of indoor and outdoor unit.

Ass’y cover valve (RO Hand cabi, RH)

N 1 2 3 4

Installing and Connecting the Outdoor Unit Drain Hose

When using the air conditioner in the heating, ice may accumulate.

Drain hole

3-8

Duting de-icing, the condensed water must be drained off safely. Consequently, you must install a drain hose on the outdoor unit, following the instructions below.

1. Insert the drain plug into the drain hole on the underside of the outdoor unit.

2. Connect the drain hose to the drain plug.

3. Ensure that the drained water runs off correctly and safely.

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3-2-2(f) Flare Modification

• Tools used

Flare modification procedure

Operating Instructions and Installation

1) Cut the pipe using a pipe cutter.

3) Insert a flare nut into the pipe and modifty flare.

Oblique Raughness Burr

2) Remove burrs at the tip of the pipe cut.

Caution : Burrs not removed may result in

leakage of gas.

Pipe

Reamer

Outer diameter A(mm)

ø6.35mm 1.3 ø9.52mm 1.8 ø12.7mm 2.0

* Unproper flaring

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Inclined Surface

damaged

Cracked Uneven

thickness

3-9

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