Samsung AS09A5MA Manuel utilisateur

SERVICE Manual

CONTENTSAIR CONDITIONER

1. Installation

2. Disassembly and Reassembly

3. Troubleshooting

4. Exploded Views and Parts List

5. Refrigerating Cycle Block Diagrams

6. Wiring Diagrams

7. Schematic Diagrams

ROOM AIR CONDITIONER

INDOOR UNIT

AS07A5(6)MA

AS09A5(6)MA

AS12A5(6)MC

OUTDOOR UNIT

US07A5(6)MA

US09A5(6)MA

US12A5(6)MC

E DB81-00187A(1)

1-00187A(1)-CO 5/16/01 1:45 PM Page 1

5-00187A(1)-OI 5/16/01 1:46 PM Page 1

1. Installation

1-1 Refrigerant Refill Procedure

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 64~78kg/cm2in a

reqular, high operation mode.

6. Open the refrigerant tank and fill with refrigerant 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

5-00187A(1)-OI 5/16/01 1:46 PM Page 1

1-2 “Pump down” Procedure

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 cable.

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 enter-

ing.

Relocation of the air conditioner

5. Disconnect the pipe connected to the out-

door unit.

At this time, cover the valve of the out-

door 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.

Pump down' shall 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 pres-

sure gauge(low pressure side) to the service valve, and open

the 3-way valve again.

2-Way Valve

3-Way Valve

5-00187A(1)-OI 5/16/01 1:46 PM Page 2

2. Disassembly and Reassembly

2-1 Indoor Unit

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

No Parts Procedure Remark

Front Grille1 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.

5) Loosen one of the right fixing screw and sepa-

rate 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.

*Taking off the deodorizing filter.

6-00187A(1)-DA 5/16/01 1:59 PM Page 3

No Parts Procedure Remark

Electrical Parts

(Main PCB)

Ass’y Tray Drain.

Heat Exchanger

Fan Motor and

Cross Fan

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.

1) Do “1” “2” ”3” “4”, above.

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.

6-00187A(1)-DA 5/16/01 1:59 PM Page 4

2-2 Outdoor Unit

No Parts Procedure Remark

Common Work

Fan and Motor

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.

5) Loosen nine fixing screws and separate the cabi

side.

1) Do “1”, above.

2) Losen four serews and seperaate Guard Fan

from front cabinet

■ US07A5(6)MA/US09A5(6)MA

6-00187A(1)-DA 5/16/01 2:00 PM Page 5

No Parts Procedure Remark

Heat Exchanger

Compressor

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.

1) Do “1”, 2 above.

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

3) Disassemble the inlet and outlet pipe by weld-

ing.

4) Separate the heat exchanger.

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.

6-00187A(1)-DA 5/16/01 2:00 PM Page 6

No Parts Procedure Remark

Common Work1 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.

■ US12A5(6)MC

6-00187A(1)-DA 5/16/01 2:00 PM Page 7

No Parts Procedure Remark

Fan-Motor2 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.

6-00187A(1)-DA 5/16/01 2:01 PM Page 8

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