Samsung AQ09A5(6)MAF User manual

SERVICE Manual
SPLIT TYPE AIR CONDITIONER
AQ09A5(6)MAF
AQ12AA(B)MCF
Indoor Unit
UQ09A5(6)MAF
UQ12AA(B)MCF
Outdoor Unit
EDB98-15777A(1)
AQ09A5(6)MA SM_E_15777 1/12/04 5:03 PM Page 45

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The following safety precautions must be taken when using your air conditioner.
◆Users of this product are cautioned not to attempt repair of this product at
their own discretion. Instead, they are requested to directly contact a
designated service center or the outlet at which the product was
purchased.
◆Never spill any kind of liquid into the unit. Should this happen, unplug
or main switch off the unit and contact an authorized service center.
◆Do not insert anything between the air outlet blades because the inner
fan may be damaged and could cause injury. Keep children away from
the unit.
◆Do not place any obstacles in front of the unit.
◆Do not spray liquid of any kind into the indoor unit. Should this happen,
switch off the breaker used for your air conditioner and contact your
installation specialist.
◆Make sure that the unit is correctly ventilated at all times:
Do not place clothing or other materials over it.
◆If the wireless remote control will not be used for a long time, remove the
batteries. (If applicable)
◆When using a wireless remote control, the distance should not be more
than 23ft(7m) from the air conditioner. (If applicable)
WARNING
DURING OPERATION
◆Never store or ship the air conditioner upside down or sideways to avoid
damage to the compressor.
◆The appliance is not intended for use by young children or infirm
persons without supervision: Young children should be supervised to
ensure that they do not play with the appliance.
◆Max current is measured according to IEC standard for safety and
current is measured according to ISO standard for energy efficiency.
OTHERS
◆Before throwing out the device, it is necessary to pull back the battery cells
and get rid of them safely for recycling reasons.
◆When you need to dispose of the unit, consult your dealer. If pipes are
removed incorrectly, refrigerant may blow out and come into contact with
your skin, causing injury. Releasing refrigerant into the atmosphere also
damages the environments.
◆Please recycle or dispose of the packaging material for this product in an
environmentally responsible manner.
D ISPOSING OF THE UNIT
Risk of electric shock. • Can cause injury or death. • Disconnect all remote electric
power supplies before servicing, installing or cleaning. • This must be done by the
manufacturer or its service agent or a similar qualified person in order to avoid a
hazard.
Safety Precautions
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AIR CONDITIONER
SPLIT TYPE
Contents
DISASSEMBLE AND REASSEMBLE
1. Indoor unit
2. Outdoor unit
4
6
TROUBLESHOOTING
1. Items to be checked first
2. Abnormal diagnosis by symptom
13
14
ASSEMBLY DRAWING AND PART’SLIST
1. Indoor unit
2. Outdoor unit
3. Assembly control in
4. Assembly control out
22
24
28
30
WIRING DIAGRAM
1. Indoor unit
2. Outdoor unit
39
40
SCHEMATIC DIAGRAM
1. Indoor unit
2. Outdoor unit
42
43
REFRIGERATING CYCLE BLOCK DIAGRAM 32
SET UP THE OPTION CODE 10
Ι
ΙΙ
ΙΙΙ
ΙΛ
Λ
ΛΙΙ
ΛΙΙΙ
PERFORMANCE CURVE 33
Λ Ι
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Disassemble and reassemble
Stop operation of the air conditioner and remove the power cable before repairing the unit.
Ι
1 Indoor unit
If you disassemble the heat exchanger, you must pump down at first.
No. Part Procedure Remark
Front Panel
11) Stop the operation of the air conditioner
and block the main power.
2) Separate the tape from the front panel.
3) Contract the second finger to the left,
and right handle. And pull the inlet grille
to open.
4) Take the left and right filter out.
5) Loosen one of the right screw and
separate the terminal cover.
6) Loosen three screws of front panel.
7) Pull the upper left, center and right of
discharge softly so that the outside cover
is 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, center and right.
*Taking off the deodorizing filter.
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No. Part Procedure Remark
Electrical
Parts
(Main PCB)
Assembly Tray
Drain
Heat
Exchanger
Fan Motor and
Cross Fan
2
3
4
5
1) Take all the connector of PCB
on the upper part. (Included Power cord)
2) Separate the outdoor unit connection
wire from the terminal block.
3) If you pull out the main PCB up, it will be
taken out.
1) Separate the drain hose from the
extension drain hose.
2) Pull tray drain out from the back body.
1) Loosen two ground screws at the
right side.
2) Separate the connection pipe.
3) Separate the holder pipe at the rear side.
4) Loosen three screws at the right and
left side.
5) Lift the heat exchanger up a little to push
the upper side to separate it from the
indoor unit.
1) Loosen two screws and separate the
motor holder.
2) Loosen the screw of fan motor.
(By use of M3 wrench)
3) Separate the fan motor from the fan.
4) Separate the fan from the left holder
bearing.
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2 Outdoor unit
No. Part Procedure Remark
Common Work
Fan Motor
1
2
1) Loosen screws and separate the cover
E-part.
2) Separate the connection wire from the
terminal block.
3) Loosen five screws and separate the
upper cabinet.
4) Loosen a screw of the control box.
5) Loosen nine screws and separate the
side cabinet.
1) Loosen four screws and separate
Guard Fan from the front cabinet.
■ UQ09A5(6)MAF
Disassemble and reassemble (cont’d)
Ι
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No. Part Procedure Remark
Compressor
Heat
Exchanger
3
4
2) Remove the nut flange
(Turn to the clockwise).
3) Separate the fan.
4) Loosen four screws to separate the motor.
1) Release the refrigerant.
2) Loosen two screws of left and right side.
3) Disassemble the inlet and outlet pipe by
welding.
4) Separate the heat exchanger.
1) Release the refrigerant.
2) Loosen the nut on the terminal cover
and open the terminal cover.
3) Separate the OLP and the compressor
wire.
4) Disassemble the inlet and outlet pipe
of compressor by welding.
5) Disassemble the inlet and outlet pipe
of condenser by welding
6) Loosen three bolts of the lower part.
7) Separate the compressor.
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Disassemble and reassemble (cont’d)
Ι
■UQ12AA(B)MCF
No. Part Procedure Remark
Common Work 1) Loosen a screw and separate the cover
E-part.
2) Separate the connection wire from the
terminal block.
3) Loosen thirteen screws and separate
the front cabinet.
4) Loosen a screw of the control box.
5) Loosen four screws and separate the
side cabinet.
1
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No. Part Procedure Remark
Fan and Motor
Heat Exchanger
Compressor
2
3
4
1) Remove the nut flange
(Turn to the clockwise).
2) Separate the fan.
3) Loosen four screws to separate the motor.
1) Release the refrigerant.
2) Loosen screws of left and right side.
3) Disassemble the inlet and outlet pipe by
welding.
4) Separate the heat exchanger.
1) Release the refrigerant.
2) Open the terminal cover of compressor
and unscrew the connection terminal.
3) Separate the OLP and the compressor
wire.
4) Disassemble the inlet and outlet pipe of
compressor by welding.
5) Loosen three bolts of the lower part.
6) Separate the compressor.
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Set up the option code
ΙΙ
The method for setting up the model option with the remote control
◆ It is necessary to set up option codes after replacing the main PCB with service parts.
Make sure that you can set up option codes of the remote control after replacing the main PBA.
Otherwise, the unit won’t be working properly and all LED lamps on display will be flickering.
1. Remove the battery from the remote control.
2. Press the temperature button simultaneously and insert the battery again.
3. Make sure the remote control display shown as .
Step 1 Preparing for the remote control to the main PCB option set.
Step 2 Preparing for the remote control option set.
NN
NNoo oott ttee ee
1) If the first number is , it is correct. Otherwise, press the button
until appears.
2) When pressing the button ~ on the display, select one of them.
3) When pressing the button ~ on the display, select one of them.
4) When pressing the button ~ on the display, select one of them.
5) When pressing the button ~ on the display, select one of them.
6) When pressing the button ~ on the display, select one of them.
In case that the wrong letter has been selected; continue to press the button until the
correct letter appears.
1. If the number “ ”appears on the display, proceed to the second stage.
2. Every time you press the 1) and 7) button, “ ” and “ ” continue to appear.
3. Every time you press the 2), 3), 4), 5), 6), 8), 9), 10), 11), 12) button, the number increases
from ~ ( , , , , , , , , , ) and , , , , , in order.
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