Samsung AQ07A1VE, AQ09B1VE, SH12YAB, UQ09B2VE, AQ12A1VE Service Manual

...

SERVICE

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

ROOM AIR CONDITIONER

INDOOR UNIT OUTDOOR UNIT

AQ07A1VE AQ07A2VE AQ07B1VE AQ07B2VE AQ09A1VE AQ09A2VE AQ09B1VE AQ09B2VE

AQ12A1VE AQ12A2VE AQ12B1VE AQ12B2VE SH09ZV SH12ZV SH09YAO SH12YAO SH07YAB SH09YAB SH12YAB

UQ07A1VE UQ07A2VE UQ07B1VE UQ07B2VE UQ09A1VE UQ09A2VE UQ09B1VE UQ09B2VE

UQ12A1VE UQ12A2VE UQ12B1VE UQ12B2VE XSH09ZV XSH12ZV SH09YAOX SH12YAOX SH07YABX SH09YABX SH12YABX

1. Precautions

Samsung Electronics 1-1

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.

dangerous

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

2. Product Specifications

2-1 Table

2-1 Samsung Electronics

Model

Item

Type

Cooling KW Dehumidifying l/h Heating KW Low temp. heating KW Air volume Cooling m

/min

Heating m3/min

Noise Cooling dB

Heating dB Energy Cooling KW/KW Efficiency ratio Heating KW/KW Power ø/V/Hz Power Cooling KW Consumption Heating KW Operating Cooling A Current Heating A Power Cooling % factor Heating % Starting current A Power cord Length m

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

Gas OD(mm) x L(m) Drain hose ID(mm) x L(m) Compressor Type

Motor Type

Rated output W Blower Type

Motor Type

Rated output W

Heat exchanger Refrigerant control unit Freezer oil capacity Refrigerant to charge(R-22) Protection device

Cooling test condition Heating test condition Maximum operation Condition

Indoor unit Outdoor unit

Wall-mounting

2.00

0.9

2.10

5.0 -

5.5 - 35 45 35 45

3.030

3.231

1/220-240~/50

0.660

0.650

2.8

2.7

98.2

99.9 17

2 -

250V 10/16A

3.15 -

815x298x182 720x532x245

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

9.6 27 ø6.35 x 5 ø9.52 x 5

ø17 x 2

- Rotary

- -

- 675

Cross-fan Propeller

Resin

Resin Steel

35 20

2Row 12Step 1Row 20Step

Capillary tube

280 690

- MST24AMN

-12008

AQ07A(B)1VE/AQ07(B)2VE

Perfor- mance

Power

Size

Indoor unit : DB 27°C WB 19°C Outdoor unit : DB 35°C WB 24°C

Indoor unit : DB 20°C WB 15°C Outdoor unit : DB 7°C WB 6°C Indoor unit : DB 32°C WB 23°C Outdoor unit : DB 43°C WB 26°C

Indoor unit Outdoor unit

Wall-mounting

2.50

1.1

2.70

6.0 -

6.5 - 35 45 35 45

2.809

3.000

1/220-240~/50

0.890

0.900

4.0

92.7

93.8 22

2 -

250V 10/16A

3.15 -

815x298x182 720x532x245

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

9.6 28 ø6.35 x 5 ø9.52 x 5

ø17 x 2

- Rotary

- -

- 895

Cross-fan Propeller

Resin Steel

35 20

2Row 12Step 1Row 20Step

Capillary tube

360 760

- MRA12037

-12007

Indoor unit Outdoor unit

Wall-mounting

3.40

1.4

3.70

7.4 -

7.9 - 38 49 38 49

2.698

2.868

1/220-240~/50

1.260

1.290

5.0

5.2

99.9

99.9 30

2 -

250V 10/16A

3.15 -

815x298x182 720x532x245

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

9.6 32 ø6.35 x 5 ø12.7 x 5

ø17 x 2

- Rotary

- -

- 1210

Cross-fan Propeller

Resin Steel

35 20

2Row 12Step 2Row 20Step

Capillary tube

410 920

- MRA12030

-12008

AQ09A(B)1VE/AQ09(B)2VE

SH09ZV/SH09YAO

AQ12A(B)1VE/AQ12(B)2VE

SH12ZV/SH12YAO

Samsung Electronics 2-2

Model

Item

Type

Cooling KW Dehumidifying l/h Heating KW Low temp. heating KW Air volume Cooling m

/min

Heating m3/min

Noise Cooling dB

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

Gas OD(mm) x L(m) Drain hose ID(mm) x L(m) Compressor Type

Motor Type

Rated output W Blower Type

Motor Type

Rated output W

Heat exchanger Refrigerant control unit Freezer oil capacity Refrigerant to charge(R-22) Protection device

Cooling test condition Heating test condition Maximum operation Condition

Indoor unit Outdoor unit

Wall-mounting

2.10

0.9

2.20

5.0 -

5.5 - 35 45 35 45

3.39

3.79

1/220-240~/50

0.62

0.58

2.7

2.6

99.8

97.0 17

2 -

250V 10/16A

3.15 -

815x298x182 740x525x230

32.08x11.73x7.17 29.13x20.67x9.06

9.6 27 ø6.35 x 5 ø9.52 x 5

ø17 x 2

- Rotary

- -

- 675

Cross-fan Propeller

Resin Steel

35 20

2Row 12Step 1Row 24Step

Capillary tube

280 550

- MST24AMN

-12008

SH07YAB

Perfor- mance

Power

Size

Indoor unit : DB 27°C WB 19°C Outdoor unit : DB 35°C WB 24°C

Indoor unit : DB 20°C WB 15°C Outdoor unit : DB 7°C WB 6°C

Indoor unit : DB 32°C WB 23°C Outdoor unit : DB 43°C WB 26°C

Indoor unit Outdoor unit

Wall-mounting

2.55

1.1

2.80

6.0 -

6.5 - 35 45 35 45

3.07

3.64

1/220-240~/50

0.83

0.77

3.7

3.5

97.5

95.7 22

2 -

250V 10/16A

3.15 -

815x298x182 740x525x230

32.08x11.73x7.17 29.13x20.67x9.06

9.6 29 ø6.35 x 5 ø9.52 x 5

ø17 x 2

- Rotary

- -

- 895

Cross-fan Propeller

Resin Steel

35 20

2Row 12Step 1Row 24Step

Capillary tube

360 630

- MRA12037

-12007

Indoor unit Outdoor unit

Wall-mounting

3.4

1.4

3.70

7.4 -

7.9 - 38 49 38 49

3.04

3.22

1/220-240~/50

1.12

1.15

5.0

5.1

97.4

98.1 30

2 -

250V 10/16A

3.15 -

815x298x182 740x525x230

32.08x11.73x7.17 29.13x20.67x9.06

9.6 33 ø6.35 x 5 ø12.7 x 5

ø17 x 2

- Rotary

- -

- 1210

Cross-fan Propeller

Resin Steel

35 20

2Row 12Step 2Row 24Step

Capillary tube

410 890

- RAC12030

-9622

SH09YAB SH12YAB

2-3 Samsung Electronics

2-2 Dimensions

2-2-1 Indoor Unit

815 182

298

58 22

161

Air in

(Front view)

(Remote control)

(Rear view)

Air out

Installation plate

Product Specifications

Samsung Electronics 2-4

2-2-2 Outdoor Unit

(Front view)

720 145 55

245

600

765

443

256

532

(Rear view)

230

506

270

525

740

■ ✳✳

YABX

2-5 Samsung Electronics

INDOOR UNIT

OUTDOOR UNIT

Heat exchanger (Evaporator)

Gas side

3-way valve

2-way valve

Liquid side

Capillary tube

Cooling

Gas leak check point

Cross fan

Heat exchanger (Condenser)

Propeller fan

Heating

Capillary tube

Check valve

Compressor

4-way valve

2-3 Refrigerating Cycle Block Diagram

Samsung Electronics 3-1

3. Operating Instructions and Installation

3-1 Operating Instructions

NAMED OF KEY

MODE

(UP)

(DOWN)

TURBO

OFF

ON TIMER

OFF TIMER

SET

CANCEL

(UP)

Without regard to ON/OFF condition in remote controller, use this button to set current time. Adjust the current time using button. (Data can be transmitted after setting up the time)

If the button is pressed once, the time decrease by one minute during the time set mode, and ten minutes during the timer set mode.

If the button is pressed once, the time increase by one minute during the time set mode, and ten minutes during the timer set mode.

Use this button to reserve or cancel the timer on and timer off.

Use this button to reserve the timer on.

Set up the time that operation stop.

Set up the time that operation start.

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

Adjusts air flow vertically.

Use this button for sleep operation. (The SLEEP mode can be selected at COOL and HEAT mode.)

Set up the reserve or cancel the timer on and timer off quickly

Use this button to provide heavy duty cooling & Heating for 30 minutes.

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

Temp. down button. If the button is pressed once, the setting temperature is decreased by 1°C

Temp. up button. If the button is pressed once, the setting temperature is increased by 1°C

On/Off Button. Use this button to start and stop air conditioner.

FUNCTION OF KEY

(DOWN)

TIME

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

V E R

E R

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

3-2 Samsung Electronics

Operating Instructions and Installation

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

∆

T= -1°, -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 slow- ly(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 over- heat 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.

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 tempera- ture, 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 main- tained. *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 main- tained.

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

Room Temp

Tr≥21°C+∆T

21°C +∆T>Tr

Operation Type

Cool Operation (Set Temp:AUTO SETTING)

Heat Operation (Set Temp : 22°C+∆T)

3-1-2 Name & Function of Key in remote controller

Samsung Electronics 3-3

Operating Instructions and Installation

8. COMPULSORY OPERATION : For operating the air conditioner without the remote controller. *AUTO : The operating is the same func- tion that AUTO MODE in the remote con- troller.

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, about 43°. If the one more time press the button, bla- tles 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 oper- ating state, LCD displays the polling state sequentially. The LCD also displays the time remaining.

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

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. *3 minutes delay timer.

12. SELF Diagnosis

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".

ON TIMER

OFF TIMER

Interruption of electric power and Power on.

Check Point

LED DISPLAY

oper- ation

TIMER

FAN

LED

blinking

: LED off

Turbo

Abnormal condition of the room sensor.

Indoor unit fan motor lock.

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

3-4 Samsung Electronics

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, cord- less 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 connec- tion with the outdoor unit, and easy drainage for condensed water.

7. Make sure that you install the indoor unit in an area which is large enough to accomo- date 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.

(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).

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

shown in figure on the next page.

3-2-1(c) Remote Control Unit

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

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.

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.

Note

3-5Samsung Electronics

Operating Instructions and Installation

Cut the piping hole sloped slightly

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

Indoor unit gas leak test check point

Tape vinyl

Piping

Indoor unit

Drain hose installation

Cut the piping hole sloped slightly

Piping (Liquid) 1/4" Clamper tube

Installation plate

Installation tube Pipe-connection

Vinyl tape Screw

Putty Drain hose

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

Right

Rear

Down

30mm or more

600mm minimum

100mm minimum

125mm

or more

125mm or more

Rear

Left

Remote control

Remote control holder

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

3-6 Samsung Electronics

Operating Instructions and Installation

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

3-2-2(b) Purging the Unit

Installation plate

Pipe hole (ø65mm)

ø65

225

100

340

(Unit : mm)

280

(Unit : mm)

410~730

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.

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

Wall

Window frame

4 to 6.

3. Fix the installation plate to the wall in a manner appro- priate to the weight of the indoor unit.

If you are mounting the plate on a concrete wall with 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.

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

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

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 fol- lows.

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.

3-7

Samsung Electronics

Operating Instructions and Installation

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 shown in the illustrations above.

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.

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

1(N) 2 3 4 5

1 5432

A B C D 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.

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 5.

• Each wire is labelled with the corresponding terminal number.

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

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.

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

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

Do NOT bend the hose in different directions.

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

The hose must NOT slope upw ards.

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

Shield

Drain hose Extension drain hose

Indoor unit

Out door unit

5cm less

N1 1 2 3 E

1 5432

A B C D E

■ ✳✳

YAB(X)

Indoor unit

Out door unit

3-8 Samsung Electronics

Operating Instructions and Installation

3-2-2(e) Outdoor unit installation

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 dia- gram of indoor and outdoor unit.

In heating and de-ice operation, condensed water may be generated. Install drain line as following procedure.

1. Close Hole with Cap Drain A.

2. Close Hole with Cap Drain B.

3. Insert Drain plug into Hole , and then connect drain hose to drain plug.

• Inside diameter of drain hose is 18mm.

Wiring connection

Installation of drain line

A B C D

N1 1 2 3

Cover-E parts

Screw

Hole

Drain Plug

Cap-Drain A

Cap-Drain B

Ass’y cover valve (RO Hand cabi, RH)

Drain hole

(✳✳YABX)

Samsung Electronics 3-9

Operating Instructions and Installation

3-2-2(f) Flare Modification

Flare modification procedure

1) Cut the pipe using a pipe cutter.

• Tools used

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

Caution : Burrs not removed may result in

leakage of gas.

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

* Unproper flaring

Outer diameter A(mm)

ø6.35mm 1.3

ø9.52mm 1.8

ø12.7mm 2.0

Oblique Raughness Burr

Pipe

Reamer

Inclined Surface

damaged

Cracked Uneven

thickness

3-10 Samsung Electronics

Operating Instructions and Installation

3-2-2(g) Air-Purge Procedureand pipe.

Outdoor unit

Indoor unit

Gas pipe side

Liquid pipe side

Vacuum Pump

(liquid)

Valve stem

Stem cap

(gas)

3 Open the valve of the low pressure side of manifold gauge

counter-clockwise.

6. Mount the valve stem nuts to the 2-way and 3-way valve. And mount the service port cap to 3-way valve.

4. Purge the air from the system using vacuum pump for about

10 minutes.

- Close the valve of the low pressure side of manifold gauge clockwise.

- Remove the hose of the low pressure side of manifold gauge.

7. Check for gas leakage.

- At this time, especially check for gas leakage from the 3-way valve’s stem nuts, and from the service port cap.

5. Set valve cork of both liquid side and gas side of packed valve to the open position.

1. Connect each assembly pipe to the appropriate valve on the outdoor unit and tighten the flare nut.

2 Connect the charging hose of low pressure side of manifold

gauge to the packed valve having a service port (3/8” or 1/2” Packed valve) as shown at the figure.

Samsung Electronics 3-11

Operating Instructions and Installation

3-2-2(h) Refrigerant Refill

• Refill an air-conditioner with refrigerant when refrigerant has been leaked at installing or using

1. Purge air(for new installation only).

3. Connect the tank to refill with Refrigerant

4. Set the unit to cool operation mode.

7. Stop operation of the air conditioner.

9. Close the cap of each valve.

2. Turn the 3-way valve clockwise to close,

connect the pressure gauge(low pressure side) to the service valve, and open the 3-way valve again.

5. Check the pressure indicated by the

pressure gauge(low pressure side). * Standard pressure is should be

4.5~5.5kg/cm

in a reqular, high operation

mode.

6. Open the refrigerant tank and fill with refrig-

erant until the rated pressure is reached. * It is recommended not to pour the

refrigerant in too quickly, but gradually

while operating a pressure valve.

8. Close the 3-way valve, disconnect the

pressure gauge, and open the 3-way valve again.

R-22

Suspension hook

High pressure gauge

Hand wheel

Finger tight fittings

Connected to high pressure side

Charging line

For mounting other and of hose when not in use

Compound gauge

3-12 Samsung Electronics

Operating Instructions and Installation

3-2-2(i) Refrigerant Adjustment

3-2-2(j) Flare unt fixing torque

Class At installation At service

Outter diameter

ø 6.35 (9000Btu, 12000Btu)

(Liquid Side)

ø 9.52 (9000Btu)

(Gas Side)

ø 12.7 (12000Btu)

(Gas Side)

160

300

500

200

350

550

Fixing Torque Final Torque

Torque (kg.cm)

Connection

Pipe Length

5m Max.

5~10m

Air-Purge Method

Refer to the detailed Air-Purge Procedure

Refrigerant Adjustment

Unnecessary

Add 10g of refrigerant (R-22) for every 1m.

Air-Purge Method

Purge air using a vaccum pump or an additional refrigerant cylinder.

Refrigerant Quantity

refer to specification sheet

Add 10g of refrigerant (R-22) for every 1m.

Samsung Electronics 3-13

Operating Instructions and Installation

3-2-2(k) "Pump down" Procedure

• Pump down will be carried out when an evaporator is replaced or when the unit is relocated in another area.

1. Remove the caps from the 2-way valve and the 3-way valve.

3. Set the unit to cool operation mode. (Check if the compressor is operating.)

5 When the pressure gauge indicates "0"

turn the 3-way valve clockwise to close.

4. Turn the 2-way valve clockwise to close.

6. Stop operation of the air conditioner.

7. Close the cap of each valve.

2 Turn the 3-way valve clockwise to close

and connect a pressure gauge(low pressure side) to the service valve, and open the 3-way valve again.

Relocation of the air conditioner

• Refer to this procedure when the unit is

relocated.

1. Carry out the pump down procedure (refer

to the details of 'pump down').

2. Remove the power cord.

3. Disconnect the assembly cable from the

indoor and outdoor units.

4. Remove the flare nut connecting the indoor

unit and the pipe. At this time, cover the pipe of the indoor unit and the other pipe using a cap or vinyl plug to avoid foreign material entering.

5. Disconnect the pipe connected to the outdoor unit. At this time, cover the valve of the outdoor unit and the other pipe using a cap or vinyl plug to avoid foreign material entering.

6. Make sure you do not bend the connection pipes in the middle and store together with the cables.

7. Move the indoor and outdoor units to a new locatioon.

8. Remove the mounting plate for the indoor unit and move it to a new location.

2-Way Valve

3-Way Valve

+ 46 hidden pages

Samsung AQ07A1VE, AQ09B1VE, SH12YAB, UQ09B2VE, AQ12A1VE Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual