Samsung SH07APG, SH09APG, SH12APG, SH07APGX, SH07APGAX Service Manual

ROOM AIR CONDITIONER

INDOOR UNIT

SH07APG
SH07APGA
SH09APG
SH12APG

SERVICE

OUTDOOR UNIT

SH07APGX
SH07APGAX
SH09APGX
SH12APGX

Manual

CONTENTSAIR CONDITIONER

11. Product Specifications

12. Operating Instructions

13. Disassembly and Reassembly

14. Refrigerating Cycle Diagram

15. Set Up the Model Option

16. Troubleshooting

17. Exploded Views and Parts List

18. Block Diagram

19. PCB Diagram

10. Wiring Diagram

11. Schematic Diagram

1. Product Specifications

1-1 Table

Item

Type

Cooling
Heating
Dehumidifying |/h

Perfor­mance

Air Volume

Noise
( ):EUROVENT

Energy Efficiency Ratio

Power V-Hz

Power Consumption

Operating Current

Power

Power Factor

Starting Current A

Power Cord Number of Core Wire

Outer
Dimension

Weight kg

Refrigerant Pipe

Drain Hose D x L(mm)

Size

Compressor

Blower

Heat Exchanger
Refrigerant Control Unit
Freezer Oil Capacity cc
Refrigerant to Change(R410A) g
Protection Device(OLP)
Cooling Test Condition
Maximum Operation Condition

Cooling
Heating
Cooling
Heating
Cooling
Heating

Cooling
Heating
Cooling
Heating
Cooling
Heating

Length m

Capacity A

W x H x D

Liquid mm x L(m)
GAS mm x L(m)

Type

Type

Motor

Rated Output

Type

Type

Motor

Rated Output W

m

Model

kW

3

/min

dB

W/W

W

A

%

mm
inch

SH07APG SH07APGA

Indoor unit Outdoor unit Indoor unit Outdoor unit

Wall-mounted

2.47

2.46

0.9

6.0 24

6.8 24
36(47) 47(47)
36(57) 47(57)

3.21

3.42

1-220 / 240-50

770
720

3.4

3.3

98.5

94.9

18.0

-

-

250V-10 / 16A

795 x 258 x 179 695 x 530 x 280

31.3 x 10.2 x 7.0 27.4 x 20.9 x 11.0

7.5 27.0

ø6.35 x 7
ø9.52 x 7

ø18 x 2,000

Rotary

--

--

Cross-fan Propeller

steel steel

11 25

2ROW 10STEP 1ROW 24STEP

CAPILLARY TUBE

350
650

MRA99901-9201

INDOOR UNIT : DB27˚C WB19˚C OUTDOOR UNIT : DB35˚C WB24˚C
INDOOR UNIT : DB32˚C WB23˚C OUTDOOR UNIT : DB43˚C WB26˚C

795 x 258 x 179 695 x 530 x 280

31.3 x 10.2 x 7.0 27.4 x 20.9 x 11.0

2ROW 10STEP 1ROW 24STEP

Wall-mounted

2.47

2.46

0.9

6.0 24

6.8 24
36(47) 36(47)
36(57) 47(57)

3.21

3.42

1-220 / 240-50

770
720

3.4

3.3

98.5

94.9

18.0

-

-

250V-10 / 16A

7.5 27.0

ø6.35 x 7
ø9.52 x 7

ø18 x 2,000

Rotary

--

--

Cross-fan Propeller

steel steel

11 25

CAPILLARY TUBE

350
600

RAC12126-9622

1Samsung Electronics

Table(cont.)

Item

Type

Cooling
Heating
Dehumidifying |/h

Perfor­mance

Air Volume

Noise
( ):EUROVENT

Energy Efficiency Ratio

Power V-Hz

Power Consumption

Operating Current

Power

Power Factor

Starting Current A

Power Cord Number of Core Wire

Outer
Dimension

Weight kg

Refrigerant Pipe

Drain Hose D x L(mm)

Size

Compressor

Blower

Heat Exchanger
Refrigerant Control Unit
Freezer Oil Capacity cc
Refrigerant to Change(R410A) g
Protection Device(OLP)
Cooling Test Condition
Maximum Operation Condition

Cooling
Heating
Cooling
Heating
Cooling
Heating

Cooling
Heating
Cooling
Heating
Cooling
Heating

Length m

Capacity A

W x H x D

Liquid mm x L(m)
GAS mm x L(m)

Type

Type

Motor

Rated Output

Type

Type

Motor

Rated Output W

m

Model

kW

3

/min

dB

W/W

W

A

%

mm
inch

SH09APG SH12APG

Indoor unit Outdoor unit Indoor unit Outdoor unit

Wall-mounted

2.70

2.90

1.4

6.4 24

7.4 24
39(50) 48(58)
39(50) 48(58)

3.21

3.41

1-220 / 240-50

840
850

3.7

3.7

98.7

99.9

21.0

-

-

250V-10 / 16A

795 x 258 x 179 695 x 530 x 280

31.3 x 10.2 x 7.0 27.4 x 20.9 x 11.0

7.5 28.0

ø6.35 x 7
ø9.52 x 7

ø18 x 2,000

Rotary

--

--

Cross-fan Propeller

steel steel

11 25

2ROW 10STEP 1ROW 24STEP

CAPILLARY TUBE

280
590

RBC12054-12500

INDOOR UNIT : DB27˚C WB19˚C OUTDOOR UNIT : DB35˚C WB24˚C
INDOOR UNIT : DB32˚C WB23˚C OUTDOOR UNIT : DB43˚C WB26˚C

890 x 285 x 179 695 x 530 x 280

35.0 x 11.2 x 7.0 27.4 x 20.9 x 11.0

2ROW 12STEP 2ROW 24STEP

Wall-mounted

3.50

3.80

1.9

8.2 24

8.6 24
42(53) 50(63)
42(53) 50(63)

3.21

3.22

1-220 / 240-50

1,090
1,180

5.0

5.2

94.8

98.7

28.0

-

-

250V-10 / 16A

8.5 32.5

ø6.35 x 7
ø12.7 x 7

ø18 x 2,000

Rotary

--

--

Cross-fan Propeller

steel steel

15 25

CAPILLARY TUBE

500
880

RBC12128-12500

Samsung Electronics2

1-2 Pressure Graph

11

10

9

8

7

20 30

Outdoor drybulb temperature [deg C]

Low Pressure [kg/cm

2

G]

40

30.6/22.5

27/19

21.5/14.6

10

9

8

7

3

20 30

Outdoor drybulb temperature [deg C]

Low Pressure [kg/cm

2

G]

40

30.6/22.5

27/19

21.5/14.6

10

9

8

7

6

20 30

Outdoor drybulb temperature [deg C]

Low Pressure [kg/cm

2

G]

40

30.6/22.5

27/19

21.5/14.6

■ SH07APG

■ SH07APGA

■ SH09APG

■ SH12APG

3Samsung Electronics

2. Operating Instructions

Low Medium High

Automatic(rotated : )

2-1 The Feature of Key in remote control

NAMED OF KEYNo

1

2

3

4

(On/Off)

(UP)

(DOWN)

On/Off button.
Press the button to stop or run the air conditioner.

Temperature adjustment button(UP).
To increase the temperature by the pressing the temperature button.

Temperature adjustment button(DOWN).
To decrease the temperature by the pressing the temperature button.

Mode selection button.
Each time you press this button
Mode is changed in the following order

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

FUNCTION OF KEY

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

5

6

7

8

Swing button.
It adjusts the airflow to upward and downward.

Turbo button.
The air conditioner cools or heats the room as quickly as possible.
After 30 minutes, the air conditioner is reset automatically to the previous mode.

Energy saving button.
If you wish to save energy when using your air conditioner, select the Energy saving
mode with the button.

Sleep button.
The sleep timer can be used when you are cooling or heating your room to switch the
air conditioner off automatically after a period of 6 hours.

Samsung Electronics4

Operating Instructions

10

11

12

NAMED OF KEYNo

9

Anion button.
Press the button to generate ion from the air conditioner.

On Timer button.
The On Timer enables you to switch on the air conditioner automatically after
a given period of time that is from 30 minutes to 24 hours.

To set the operating time, press the button one or more times until the required
time display.

Off Timer 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 set the operating time, press the button one or more times until the required
time display.

Timer Set/Cancel button.
After setting On Timer or Off Timer, press the button to set it completely.

And press the button again to cancel On Timer or Off Timer set.

FUNCTION OF KEY

13

Digital On/Off button.
If you want to turn off the display during operation press the button.

5Samsung Electronics

Operating Instructions

2-1-1 Name & Function of Key in remote control

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

Room Temp
Tr≥ 21°C+∆T
21°C +∆T>Tr

Cool Operation (Set Temp:24˚C+∆T)
Heat Operation (Set Temp:22˚C+∆T)

Operation Type

∆T= -1°C, -2°C, 0°C, +1°C, +2°C
∆T is controlled by setting temperature up/down key of

remote control

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 : In order to prevent the

cool air from flowing out at the heat mode, the indoor fan
does not operate or operates very slowly in the
following cases. At this time, the indoor heat exchanger
will be preheating.

- For 3~5 minutes after the initial operation

- For deicing operation

- The operation of an indoor fan in accordance with
the temperature of an indoor heat exchanger

The temperature of

indoor heat exchanger

below 28˚C

28˚C~below 34˚C

34˚C~below 40˚C

above 40˚C

Indoor fan speed

off

LL Speed

L Speed

Setting Speed

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 automatical-

ly 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

dropped by 1°C each 1hour.
When the temperature has been dropped 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.

*High temperature release function : It is a function to

detect an outdoor overload by the sensor of an indoor
heat exchanger and to turn the outdoor fan or the
compressor ON/OFF for safety.

*Deice : Deicing operation is controlled by indoor unit's

heat exchanger temperature and accumulating time of
compressor's operation.
Deice ends by sensing of the processing time by deice
condition.

8. COMPULSORY OPERATION :
For operating the air conditioner without the remote
control.
*The air conditioner starts up in the most suitable mode

for the room temperature:

Room Temperature

Less than 21˚C

21˚C or above

Operating Mode

Heat
Cool

Temperature Setting

22˚C approx.
24˚C approx.

Samsung Electronics6

Operating Instructions

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. If the one more time press the

button, blades location is stop.

10. SETTING THE ON/OFF TIMER. :
*ON TIMER : The On Timer enables you to switch on the

air conditioner automatically after a given period of time.
You can set the period of time from 30 minutes to 24
hours.

*OFF TIMER : The Off Timer enables you to switch off

the air conditioner automatically after a given period of
time. You can set the period of time from 30 minutes to
24 hours.

1 1. GENERATING ANION :

The air conditioner can generate anion with an ionizer in
the indoor unit.

12. SELF DIAGNOSIS

Error Mode

Indoor unit room temperature sensor
error (open or short)

Indoor unit heat exchanger
temperature sensor error(open or short)

Indoor FAN MOTOR error :
Keep the RPM value 450 below for
15 seconds

EEPROM error

Error in option
In case of No option set-up
In case of option data error

DISPLAY 7-SEGMENT

Operation Off Operation On

OFF E1

OFF E2

OFF E3

OFF E6

All lamp

blinking

All lamp

blinking

Remark

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".

7Samsung Electronics

2-2 Replace PCB Model option

2-2-1 Replace PCB model option

Remove power cord

Replace the PCB module

Check the connection and plug in

Does all display lamp blink?

Yes

Refer to set up the Model option(15~17page)

No

Replace another PCB

Samsung Electronics8

3. Disassembly and Reassembly

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

3-1 Indoor Unit

No Parts Procedure Remark

1 Front Panel

1) Stop the air conditioner operation and block
the main power.

2) Separate tape of Front Panel upper.

3) Slide the lower Front Grille down, then
disassemble it by pulling it forwards.

4) Open the upper Front Grille by pulling right
and left sides of the Grille.

5) Take the left and right Filter out.

6) Loosen one of the right screw and detach
the Terminal Cover.

7) Detach the thermistor from the Front Grille.

8) Loosen 5 fixing screws of Front Grille.

9) Pull the lower left and right of discharge
softly for the outside cover to be pulled out.

9Samsung Electronics

Disassembly and Reassembly

No Parts Procedure Remark

10) At first, press the left and center hook of
the back side of the Panel Grille with the
thumb to remove the hook. And press the
right of the upper side of the Panel Grille
with the fingers. And then disassemble the
Panel Grille.

2

Electrical Parts

(Main PCB)

1) Take all the connector of PCB upper side

out.(Including Power Cord)

2) Detach the outdoor unit connection wire

from the Terminal Block.

3) If pulling the main PCB up, it will be taken

out.

3

Tray Drain

1) Pull Tray Drain out from the Back Body.

Samsung Electronics10

Disassembly and Reassembly

No Parts Procedure Remark

4

Heat Exchanger

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 3 fixing screws of right and left
side.

5) Detach the Heat Exchanger from the
indoor unit.

5

Fan Motor

&

Cross Fan

1) Loosen 2 fixing screws and separate the
Motor Holder.

2) Loosen 1 fixing screw of Fan Motor.
(with a M3 wrench)

3) Detach the Fan Motor from the Fan.

4) Detach the Fan from the left Holder
Bearing.

11Samsung Electronics

3-2 Outdoor Unit

No Parts Procedure Remark

1 Common Work

1) Loosen 2 fixing screws and separate the
Cover Valve.

2) Detach the connection wire from the
Terminal Block.

3) Loosen 4 fixing screws and detach the
Cabinet Front.

4) Loosen 2 fixing screws and detach the
Cabinet-Side LF.

5) Loosen 2 fixing screws of the Cabinet-Side
RH.

6) Loosen 2 fixing screws and detach the
Bar Steel.

Samsung Electronics12

Disassembly and Reassembly

No Parts Procedure Remark

2

Fan

&

1) Detach the connection wire of the Motor
Fan.

Motor

2) Remove the Nut Flange.(Turn to the clock­wise)

3) Detach the Fan.

4) Loosen 4 fixing screws to detach
the Motor.

5) Loosen 4 fixing screws and detach the
Motor Bracket from the Base.

3

4

Heat Exchanger

Compressor

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

2) Disassemble the inlet and outlet pipe by
welding.

3) Detach the Heat Exchanger.

1) Open the Terminal Cover of Compressor
and unscrew the Connection Terminal.

2) Disassemble the inlet and outlet pipe of
Compressor by welding.

3) Loosen 3 fixing bolts of the lower part.

4) Detach the Compressor.

13Samsung Electronics