SAMSUNG AS070VE0K Service Manual

ROOM AIR CONDITIONER

INDOOR UNIT AS070VE/DOK AS071VE/DOK AS074VE/DOK AS075VE/DOK AS090VE/DOK AS091VE/DOK AS094VE/DOK AS095VE/DOK AS120VE/DOK AS121VE/DOK AS124VE/DOK AS125VE/DOK

SERVICE

OUTDOOR UNIT AX070VE/DOK AX071VE/DOK AX074VE/DOK AX075VE/DOK AX090VE/DOK AX091VE/DOK AX094VE/DOK AX095VE/DOK AX120VE/DOK AX121VE/DOK AX124VE/DOK AX125VE/DOK

Manual

CONTENTSAIR CONDITIONER

1. Pre c a u t i o n s

2. Product Specifications

3. Operating Instructions and I n s t a l l a t i o n

4. Disassembly and Reassembly

5. Tro u b l e s h o o t i n g

6. Exploded Views and Parts List

7. Block Diagrams

8. PCB Diagrams

9. Wiring Diagrams

10. Schematic Diagrams

Printed in Korea. Code No. DB81-10123A(1)

1. Precautions

1 . Warning: Prior to re p a i r, disconnect the

power cord from the circuit bre a k e r.

2 . Use proper parts: Use only exact re p l a c e-

ment parts. (Also, we recommend re p l a c i n g 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 equipment may cause problems later- i n t e r m i t t e n t contact, for example.

4 . Power Cord: Prior to re p a i r, 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 re a s s e m b l y,

check the insulation resistance. Pro c e d u re : Prior to applying power, measure the re s i stance between the power cord and the g round terminal. The resistance must be g reater than 30 megohms.

Fig. 1-1 Avoid Dangerous Contact

Fig. 1-2 No Tapping and No Extension Cords

7 . Make sure that the grounds are adequate.

8 . Make sure that the installation conditions

a re satisfactory. Relocate the unit if necess a r y.

9 . Keep children away from the unit while it is

being re p a i re d .

1 0 . Be sure to clean the unit and its surro u n d-

ing are a .

Fig. 1-3 No Kids Nearby!

Fig. 1-4 Clean the Unit

Samsung Electronics

1-1

M E M O

1-2

Samsung Electronics

2. Product Specifications

2-1 Table

Model

Item

Type -

Cooling BTU/h Dehumiditying I/h

Performance

Power

Size

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

Cooling test Condition Maximum operation Condition

Air volume Cooling m3/min Noise Cooling dB Energy efficiency ratio Cooling BTU/h.W Power V-Hz Power Consumption Cooling W Operating Current Cooling A Power factor Cooling % 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 Drain hose ID(mm)x L(m) Compressor Type

Motor Type

Rated output W

Blower Type

Motor Type

Rated output W

A S 0 7 0 V E / A S 0 7 1 V E / A S 0 7 4 V E / A S 0 7 5 V E

Indoor unit Outdoor unit

Wall-mounting

7500

1.2

6.0

35 45

11.2

1-220 / 240-50

670

2.8

99.7

17.0

2 -

250V 10/16A

3.15 -

815x298x182 720x525x245

32.08x11.73x7.17 28.35x20.67x9.65

9.6 27 ø6.35 x 5 ø9.52 x 5

ø17 x 2000

- Rotary

- -

- 675

Cross-fan Propeller

Resin Die casting

35 15

2Row 12Step 1Row 20Step

CAPILLARY TUBE

280 670

- MST24AMN

-12008

A S 0 7 0 V D / A S 0 7 1 V D / A S 0 7 4 V D / A S 0 7 5 V D

Indoor unit Outdoor unit

Wall-mounting

7500

1.2

6.0

35 45

11.2

1-200 / 220-50

670

3.2

95.2

17.0

2 -

250V 10/16A

3.15 -

815x298x182 720x525x245

32.08x11.73x7.17 28.35x20.67x9.65

9.6 27 ø6.35 x 5 ø9.52 x 5

ø17 x 2000

- Rotary

- -

- 685

Cross-fan Propeller

Resin Die casting

35 15

2Row 12Step 1Row 20Step

CAPILLARY TUBE

280 690

- MST24AMM

-12008 INDOOR UNIT : DB27°C WB19°C OUTDOOR UNIT : DB35°C WB24°C INDOOR UNIT : DB32°C WB23°C OUTDOOR UNIT : DB43°C WB26°C

A S 0 9 0 V E / A S 0 9 1 V E / A S 0 9 4 V E / A S 0 9 5 V E

Indoor unit Outdoor unit

Wall-mounting

9000

1.6

6.1

35 45

10.2

1-220 / 240-50

880

4.0

91.7

22.0

2 -

250V 10/16A

3.15 -

815x298x182 720x525x245

32.08x11.73x7.17 28.35x20.67x9.65

9.6 28 ø6.35 x 5 ø9.52 x 5

ø17 x 2000

- Rotary

- -

- 895

Cross-fan Propeller

Resin Steel

35 15

2Row 12Step 1Row 20Step

CAPILLARY TUBE

360 800

- MRA12037

-12007

A S 0 9 0 V D / A S 0 9 1 V D / A S 0 9 4 V D / A S 0 9 5 V D

Indoor unit Outdoor unit

Wall-mounting

9000

1.6

6.1

35 45

10.2

1-220 / 220-50

880

4.2

95.2

22.0

2 -

250V 10/16A

3.15 -

815x298x182 720x525x245

32.08x11.73x7.17 28.35x20.67x9.65

9.6 28 ø6.35 x 5 ø9.52 x 5

ø17 x 2000

- Rotary

- -

- 890

Cross-fan Propeller

Resin Steel

35 15

2Row 12Step 1Row 20Step

CAPILLARY TUBE

360 740

- MRA12056

-12007

A S 1 2 0 V E / A S 1 2 1 V E / A S 1 2 4 V E / A S 1 2 5 V E

Indoor unit Outdoor unit

Wall-mounting

12000

1.9

7.8

38 49

10.2

1-220 / 240-50

1180

5.0

98.3

30.0

2 -

250V 10/16A

3.15 -

815x298x182 720x525x245

32.08x11.73x7.17 28.35x20.67x9.65

9.6 31 ø6.35 x 5 ø12.7 x 5

ø17 x 2000

- Rotary

- -

- 1210

Cross-fan Propeller

Resin Die casting

35 20

2Row 12Step 1Row 20Step

CAPILLARY TUBE

410 930

- MRA12030

-12008

A S 1 2 0 V D / A S 1 2 1 V D / A S 1 2 4 V D / A S 1 2 5 V D

Indoor unit Outdoor unit

Wall-mounting

12000

1.9

7.8

38 49

10.2

1-200 / 220-50

1180

5.9

90.9

36.0

2 -

250V 10/16A

3.15 -

815x298x182 720x525x245

32.08x11.73x7.17 28.35x20.67x9.65

9.6 31 ø6.35 x 5 ø12.7 x 5

ø17 x 2000

- Rotary

- -

- 1215

Cross-fan Propeller

Resin Steel

35 20

2Row 12Step 1Row 20Step

CAPILLARY TUBE

410 780

- MRA98706

-12008

Samsung Electronics

2-1

2-2 Dimensions

2-2-1 Indoor Unit

Air out

(Front view) (Remote control)

Air in

2-2-1 Outdoor Unit

(Rear view)

(Front view)

Installation plate

(Rear view)

2-2

Samsung Electronics

2-3 Low pressure & Current Data

Indoor Unit : A S 0 7 0 V E / A S 0 7 1 V E

A S 0 7 4 V E / A S 0 7 5 V E

11 10

9 8 7 6 5 4 3

30 4035 45 50

Outdoor Inlet air D. B. temp.(°C)

Outdoor Unit : A X 0 7 0 V E / A X 0 7 1 V E

A X 0 7 4 V E / A X 0 7 5 V E

14 13 12 11 10

9 8 7 6 5 4 3

30 4035 45 50

Outdoor Inlet air D. B. temp.(°C)

Samsung Electronics

2-3

Product Specifications

Indoor Unit : A S 0 7 0 V D / A S 0 7 1 V D

A S 0 7 4 V D / A S 0 7 5 V D

11 10

9 8 7 6 5 4 3

30 4035 45 50

Outdoor Inlet air D. B. temp.(°C)

Outdoor : Unit A X 0 7 0 V D / A X 0 7 1 V D

A X 0 7 4 V D / A X 0 7 5 V D

14 13 12 11 10

9 8 7 6 5 4 3

30 4035 45 50

Outdoor Inlet air D. B. temp.(°C)

2-4

Samsung Electronics

Product Specifications

Indoor Unit : A S 0 9 0 V E / A S 0 9 1 V E

A S 0 9 4 V E / A S 0 9 5 V E

11 10

9 8 7 6 5 4 3

30 4035 45 50

Outdoor Inlet air D. B. temp.(°C)

Outdoor : Unit A X 0 9 0 V D / A X 0 9 1 V E

A X 0 9 4 V D / A X 0 9 5 V E

14 13 12 11 10

9 8 7 6 5 4 3

30 4035 45 50

Outdoor Inlet air D. B. temp.(°C)

Samsung Electronics

2-5

Product Specifications

Indoor Unit : A S 0 9 0 V D / A S 0 9 1 V D

A S 0 9 4 V D / A S 0 9 5 V D

11 10

9 8 7 6 5 4 3

30 4035 45 50

Outdoor Inlet air D. B. temp.(°C)

Outdoor Unit : A X 0 9 0 V D / A X 0 9 1 V D

A X 0 9 4 V D / A X 0 9 5 V D

14 13 12 11 10

9 8 7 6 5 4 3

30 4035 45 50

Outdoor Inlet air D. B. temp.(°C)

2-6

Samsung Electronics

Product Specifications

Indoor Unit : A S 1 2 0 V E / A S 1 2 1 V E

A S 1 2 4 V E / A S 1 2 5 V E

11 10

9 8 7 6 5 4 3

30 4035 45 50

Outdoor Inlet air D. B. temp.(°C)

Outdoor Unit : A X 1 2 0 V E / A X 1 2 1 V E

A X 1 2 4 V E / A X 1 2 5 V E

14 13 12 11 10

9 8 7 6 5 4 3

30 4035 45 50

Outdoor Inlet air D. B. temp.(°C)

Samsung Electronics

2-7

Product Specifications

Indoor Unit : A S 1 2 0 V D / A S 1 2 1 V D

A S 1 2 4 V D / A S 1 2 5 V D

11 10

9 8

6 5 4 3

30 4035 45 50

Outdoor Inlet air D. B. temp.(°C)

Outdoor Unit : A X 1 2 0 V D / A X 1 2 1 V D

A X 1 2 4 V D / A X 1 2 5 V D

14 13 12 11 10

9 8 7 6 5

30 4035 45 50

Outdoor Inlet air D. B. temp.(°C)

2-8

Samsung Electronics

2-4 Refrigerating Cycle Block Diagram

INDOOR UNIT

Heat exchanger (Evaporator)

OUTDOOR UNIT

Capillary tube

Liquid side

Gas side

2-way valve

3-way valve

Compressor

Heat exchanger (Condenser)

Cooling Gas leak check point

Samsung Electronics

2-9

M E M O

2-10

Samsung Electronics

3. Operating Instructions and Installation

3-1 Operating Instructions

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

NAMED OF KEY 1 2

MODE

4 5

TURBO

OFF

(UP)

(DOWN)

On/Off Button. Use this button to start and stop air conditioner. Temp. up button. If the button is pressed once,

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

the setting temperature is decreased by 1°C Each time you press this button,

MODE is changed in the following order.

Use this button to provide heavy duty cooling & Heating for 30 minutes. Set up the reserve or cancel the timer on and timer off quickly

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

Adjusts air flow vertically. Each time you press this button, BLADE-H rotates by 10.58° (Changable range 42.3°)

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

FUNCTION OF KEY

C O

V E R

11 12 13

Samsung Electronics

E R

ON TIMER OFF TIMER

SET CANCEL

TIME

(UP)

(DOWN)

Set up the time that operation start. Set up the time that operation stop.

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

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.

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.

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)

3-1

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

Operating Instructions and Installation

1. A U TO MODE : In this mode, operation C O O L mode is selected automatically by the room temperature of initial operation.

Operation Type

Tr≥ 24.5°C+∆T Compressor ON

Cool Operation

Tr≤ 24°C+∆T Compressor OFF

∆T= -1°, -2°C, 0°C+1°C+2°C ∆T is controlled by setting temperature

up/down key of remote contro l l e r

* FAN SPEED : A U TO

2. C O O L MODE : The unit operates accord i n g to the diff e rence between the setting and room temperature. (18°C~30°C)

3. D RY MODE : Has 3 states, each determined by room temperature . The unit operates in DRY m o d e . *Co m p ressor ON/OFF Time is contro l l e d compulsorily(can not set up the fan speed, always bre e z e ) . * P rotective function : Low temperature release. (Prevention against fre e z e )

Room Temp

4. TURBO MODE : This mode is available in A U TO, COOL, DRY, FAN MODE. When this button is pressed at first, the air conditioner is operated “powerful” state for 30 minutes re g a rdless of the set temperat u re, 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 A U TO mode automatically.

5 . S L E E P MODE : Sleep mode is available

only in COOL m o d e . 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 maint a i n e d .

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

3-2

Samsung Electronics

Operating Instructions and Installation

8 . C O M P U L S O RY O P E R ATION :

For operating the air conditioner without the remote contro l l e r. * A U TO : The operating is the same function that A U TO MODE in the remote cont ro l l e r.

9 . SWING : BLADE-H is rotated vertically by

the stepping motor. *Memory louver : When ON/OFF button is p ressed at stop state, the BLADE-H re t u r n s to its original location which is operating state before stop *Swing auto : The BLADE-H can ro t a t e within about 10,500 in the original position set by the SWING SET button. *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, blatles location is stop.

1 0 . 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 operating state, LCD displays the polling state s e q u e n t i a l l y. The LCD also displays the time re m a i n i n g .

11 . 24-Hour ON/OFF Real Setting Ti m e r. : The

air conditioner is turned ON at a specified time using .

ON TIMER

OFF TIMER : The air Conditioner is turned OFF at a specified time using .

OFF TIMER

*ON TIMER : Only timer LED lights on. *OFF TIMER : Both timer and operation LED lights on. *3 minutes delay timer.

1 4 . SELF Diagnosis

LED DISPLAY

o p e r-

T I M E R

a t i o n

FA N

Tu r b o

Check Point

I n t e r ruption of electric power and Power on. Abnormal condition of the room sensor. Abnormal condition of the indoor unit's heat exchanger sensor.

Indoor unit fan motor lock.

L E D

b l i n k i n g

: LED off

1 5 . TIME SHORTENING : If the "Time short"

connector pin is shorted on the main P. C. B, the compressor's three minutes delay function is cancelled, and each operation time is shortened to one fiftieth of its original time.

1 6 . 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"

Samsung Electronics

3-3

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 spre a d evenly in a ro o m .

5 . Make sure that you install the indoor unit in

an area away from TVs, audio units, cordless phones, fluorescent lighting fixture s and other electrical appliances (at least 1 m e t e r ) .

6 . Make sure that you install the indoor unit in

an area which provides easy pipe connection with the outdoor unit, and easy drainage for condensed water.

(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 traff i c .

6. Make sure that you install the outdoor unit in area easy to drain condensed water fro m 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(15 meters).

Note

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.

8 . Make sure that you install the outdoor unit

in an area which is large enough to accommodate the measurements

shown in figure on the next page.

7. Make sure that you install the indoor unit in an area which is large enough to accomodate 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 l i g h t .

(Install a separate sunblind if exposed to

d i rect 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.

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.

3-4

3-2-1(c) Remote Control Unit 1 . Make sure that you install the remote con-

t rol unit in an area free from obstacles such as curtains etc, which may block signals f rom the remote control unit.

2. Make sure that you install the remote cont rol unit in an area not exposed to d i rect sunlight, and where there is no sourc e of heat.

3. Make sure that you install the remote cont rol unit in an area away from TVs, audio units, cordless phones, fluorescent lighting f i x t u res and other electrical appliances (at least 1 meter).

Samsung Electronics

Operating Instructions and Installation

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

A Indoor unit gas leak test check point

Indoor unit

Piping

Tape vinyl

B Drain hose installation

Cut the piping hole sloped slightly

5 6

250mm or more

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

Right

Rear

Down

Rear

200mm or more

Left

2 3 4 5

Samsung Electronics

Piping (Liquid) 1/4" Clamper tube

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

Installation tube Pipe-connection Vinyl tape Screw Putty Drain hose

6 7 8 9

Remote control

Remote control holder

Installation plate

3-5

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