Samsung 4qt12whwe User manual

INDOOR UNIT
AQT12WHWE
OUTDOOR UNIT
UQT12WHWE
AQT12WHWBUQT12WHWB
SERVICE Manual
CONTENTSAIR CONDITIONER
1. Product Specifications
2. Disassembly and Reassembly
3. Refrigerating Cycle Diagram
4. Set Up Model Option
5. Troubleshooting
6. Exploded Views and Parts List
7. Block Diagram
8. Wiring Diagram
9. Schematic Diagram
ROOM AIR CONDITIONER
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1Samsung Electronics
1. Product Specifications
1-1 Table
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Model
Item Indoor unit Outdoor unit Indoor unit Outdoor unit
Cooling
Heating
SASO
l/h
m3/h 8.5/9.5 25.0 8.5/9.5 25.0
dB 43 55 43 55
Cooling
Heating
SASO
V-Hz
Cooling
Heating
SASO
Cooling
Heating
SASO
Cooling
Heating
SASO
A
Length m
Capacity A
mm 825×258×189 720×548×265 825×258×189 720×548×265
inch 32.4×10.1×7.42 28.3×21.6×10.4 32.4×10.1×7.42 28.3×21.6×10.4
kg 8.4 33.5 8.4 33.5
Liquid mm×L(m)
Gas mm×L(m)
D×L(m)
— — — —
— — — —
Cross-flow Propeller Cross-flow Propeller
Type steel steel steel steel
Rated Output W — — — —
2ROW 14STEP 2ROW 24STEP 2ROW 14STEP 2ROW 24STEP
cc
g
—
870
RBC12050-12500
5.2
—
98.4
98.7
—
—
1,200
1,180
—
5.3
10.0
11.0
—
1-220/240-50
RBC12107-12500
INDOOR UNIT：DB27 ˚C WB19 ˚C OUTDOOR UNIT：DB35 ˚C WB24 ˚C
INDOOR UNIT：DB32 ˚C WB23 ˚C OUTDOOR UNIT：DB43 ˚C WB26 ˚C
Protection Device(OLP)
Cooling Test Condition
Maximum Operation Condition
CAPILLARY TUBE
Freezer Oil Capacity
Refrigerant to Charge(R22)
—
960
Type
Heat Exchanger
Refrigerant Control Unit
—
—
ø6.35 X 5
ø12.7 X 5
ø18.0 X 2，000
Rotary
CAPILLARY TUBE
Rotary
Type
Type
Rated Output
250V-10/16A
Drain Hose
ø6.35 X 5
ø12.7 X 5
ø18.0 X 2，000
Refrigerant Pipe
W×H×DOuter Dimension
Weight
98.6
Staring Current —
—
Power Cord —
Number of Core Wire
250V-10/16A
5.7
6.5
98.4
94.6
1,200
1,240
1,410
5.5
10.0
10.5
7.45
1-220-60
13,000
10,500 —
1.0 1.0
Power
W
A
%
BTU/W·h
Power
Perfor-
mance
Dehumidifying
Air Volume
Noise
AQT12WHWE
Wall-mounted Wall-mounted
BTU/h
Type
AQT12WHWB
12,000 12,000
13,000
Size
Capacity
Eenergy Efficiency Ratio
Power Consumption
Operating Current
Power Factor
Compressor
Blower Motor
Motor

2. Disassembly and Reassembly
2-1 Indoor Unit
Stop operation of the air conditioner and remove the power cord before repairing the unit.
No Parts Procedure Remark
1 Front Grille 1) Stop the air conditioner operation and
block the main power.
2) Open the Front Grille by pulling right and
left sides of the hook.
3) Loosen 1 of the right screw and detach
the Terminal Cover.
4) Detach the thermistor from the Front
Grille.
5) Loosen 2 fixing screws of Front Grille.
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Samsung Electronics2

Disassembly and Reassembly
No Parts Procedure Remark
2
3
Control-In
(Main PCB)
Tray Drain
6) Unlock 2 hooks to fix Panel Front and
Tray Drain.
7) Unlock 3 hooks to fix Panel Front and
Back-Body.
1) Take all the connector of PCB upper side
out. (Inclusion Power Cord)
2) Detach the outdoor unit connection wire
from the Terminal Block.
3) Loosen 4 fixing screws of Ass'y Control-In.
1) Pull Tray Drain out from the Back Body.
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3Samsung Electronics

Disassembly and Reassembly
No Parts Procedure Remark
4
5
Heat Exchanger
Fan Motor
&
Cross Fan
1) Loosen 2 fixing earth screws of right side.
2) Detach the Connection Pipe.
3) Detach the Holder Pipe at the rear side.
4) Loosen the 3 fixing screws of right and left
side.
5) Lifting the Heat Exchanger up a little to
push the up side for separation from the
indoor unit.
1) Loosen the fixing screw and detach the
Motor Holder.
2) Detach the Fan Motor from the Fan.
3) Detach the Fan From the left Holder
Bearing.
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Samsung Electronics4

2-2 Outdoor Unit
No Parts Procedure Remark
1 Common Work 1) Loosen each 3 fixing screws on both right
and left Cabinet-Side edge and a fixing
screw on the Cabinet-Front lower to detach
the Cabinet-Front.
2) Loosen 2 fixing screws of the
Ass'y-Control.
3) Loosen 6 fixing screws of the Cabinet-Side
RH.
4) Loosen 2 fixing screws of the Cabinet-Side
LF.
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5Samsung Electronics

Disassembly and Reassembly
No Parts Procedure Remark
2
3
4
Fan & Motor
Heat Exchanger
Compressor
1) Detach the Nut Flange.(Turn counterclock-
wise because the screw is right-handed)
2) Detach the Fan.
3) Loosen 4 fixing screws to detach
the Motor.
1) Loosen 2 fixing screws on both sides.
2) Disassemble the pipe in both inlet and
outlet with welding torch.
3) Detach the Heat Exchanger.
1) Loosen the Terminal Cover nut to open the
Terminal Cover.
2) Disassemble the cloth sound felt.
3) Disassemble the pipe in both inlet and
outlet of the Compressor with welding
torch.
4) Disassemble the pipe in both inlet and
outlet of the Condenser with welding torch.
5) Loosen the 3 bolts at the bottom.
6) Detach the Compressor.
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5) Loosen 1 fixing Cable-Tie of the Cabinet-Side
LF.
Samsung Electronics6

Cooling
Heating
Gas Leak Check Polnt
Indoor Unit Outdoor Unit
T1
T2
Heat
Exchanger
(Evaporator)
Heat
Exchanger
(Evaporator)
Propeller fan
Cross fan
2-Way valve
Capillary tube
Capillary tube
Check valve
✳Note
3-Way valve 4-Way valve
Gas side
Liquid side
Compressor
3. Refrigerating Cycle Diagram
3-1 Refrigerating Cycle Diagram
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7Samsung Electronics

Samsung Electronics8
Feature Display
4. Set Up the Model Option
4-1 Setting Option Setup Method
ex) Option No. :
Step 1 : Enter the Option Setup mode.
1st Take out the batteries of remote control.
2nd Press the temperature button simultaneously and
insert the battery again.
3rd Make sure the remocon display shown as .
Step 2 : Enter the Option Setup mode and select your option according to the following procedure.
3
1,4 2,5
Setting Option SEG1.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
2
Setting Option SEG2.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
4
Setting Option SEG3.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
3
Change it into the set display of Option SEG3 and SEG4
with the button.
5
Setting Option SEG4.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
1
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Set Up the Model Option
9Samsung Electronics
Feature Display
7
Setting Option SEG5.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
6
Change it into the set display of Option SEG5 and SEG6
with the button.
8
Setting Option SEG6.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
10
Setting Option SEG7.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
9
Change it into the set display of Option SEG7 and SEG8
with the button.
11
Setting Option SEG8.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
13
Setting Option SEG9.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
12
Change it into the set display of Option SEG9 and SEG10
with the button.
14
Setting Option SEG10.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
6,9
7,10 8,11
12
13 14
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