SAMSUNG AQ18B1QE Service Manual

SERVICE

Manual

CONTENTSAIR CONDITIONER

ROOM AIR CONDITIONER

INDOOR AQ24A1QE AQ24B1QE AQ18A1QE AQ18B1QE

OUTDOOR UQ24A1QE UQ24B1QE UQ18A1QE UQ18B1QE

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 h

5. Exploded Views and Parts List

6. Block Diagrams

7. PCB Diagrams

8. Wiring Diagrams

9. Schematic Diagrams

Printed in Korea. Code No. DB81-10168A(2)

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

Item

Power Sourse

Performance

Electrical

Rating

Features

D i m e n s i o n s

Weight

Model

Capacity KW

BTU/h Air circulation (High) m2/min Moisture removal (High) Liters/h Available voltage range V Running amperes A Power input KW Power factor % Energy efficiency ratio BTU/wh Compressor locked rotor amperes A Controls/Temperature control Control unit Timer Fanspeed Indoor/Outdoor Airflow direction(indoor) Horizontal

Vertical Comperssor Refrigerant/Amount charged at rating g Refrigerant control Operation sound Indoor Hi/Me/Lc dB-A

Outdoor-Hi dB-A Refrigerant tubing connections Max. allowable tubing length at shippint m Refrigerant tube diameter Narrow tube (in.)

Wide tube (in.) Refrigerant tube kit/Accessories

Unit dimensions Height mm

Width mm

Depth mm Package dimensions Height mm

Width mm

Depth mm Weight Net kg

Shipping kg

A Q 2 4 A 1 Q E

Cooling Heating

220/240V~,50Hz

7.03 7.03

24,000 24,000

14.5 15

2.7 198~264

11.8 12

2.45 2.45

86.5 85.1

9.8 9.8

Microprocessor/I.C Thermostat

Wireless remote control

Q-Timer/24-Hour On or Off

3 Steps and Turbo/1 Step

Manual

Auto

Reciprocating(Bristol)

R22/1650

Capillary tube

47/44/41

Flare type

6.35(1/4”)

15.88(5/8”)

Optional/Hanger-plate

Indoor unit Outdoor Indoor unit Outdoor

275 638

1080 880

204 310 372 851

1153 1023

272 413

15 63.0 18 67.0

A Q 1 8 A 1 Q E

Cooling Heating

220/240V~,50Hz

5.27 5.86

18,000 20,000

13.5 14

2.2 198~264

8.3 8.8

1.85 1.95

92.9 92.3

9.7 10.2

Microprocessor/I.C Thermostat

Wireless remote control

Q-Timer/24-Hour On or Off

3 Steps and Turbo/1 Step

Manual

Auto

Rotary(Samsung)

R22/1550

Capillary tube

45/42/39

Flare type

6.35(1/4”)

12.70(1/2”)

Optional/Hanger-plate

275 620

1080 787

204 320 372 680

1153 926

272 451

15 46.0 18 50.0

Remarks : Rating Conditions are :

Indoor air temperature 27˚C DB/19˚C WB Outdoor air temperature 35˚C DB/24˚C WB

Samsung Electronics

2-1

2-2 MAJOR COMPONENT SPECIFICATIONS

■ Indoor Unit

Model

Part No.

PCB

FAN &

FAN

MOTOR

S-MOTOR

Heat

Exch.

Controls Control circuit fuse Type Dia. and length mm Fan motor model Pols,rpm(at 240V) Normal output W Coil resistance(Ambient temp.20˚C) Ω

Safety devices Type

Operating temp. Open ˚C

Close ˚C Run capacitor µF x VAC Type Model Rating Coil resistance (Ambient temp. 25˚C) Ω Coil Rows x Steps Fin pitch mm

A Q 2 4 A 1 Q E

DB93-10545A

Microprocessor

250V, 3.15A

Cross-Flow

ø95/L=842

IC-9430SKJ5A

4P, 1350 RPM

40 W

MAIN:162Ω

SUB:216Ω

17AM034A5

135±5˚C

1.2µF X 450VAC PM

MP35EA, MSFCC20B02

DC 12V

250 Ω

AL-FIN/Copper tube

2 X 15

1.5

A Q 1 8 A 1 Q E

DB93-10555A

Microprocessor

250V, 3.15A

Cross-Flow

ø95/L=842

IC-9430SKJ5A

4P, 1350 RPM

40 W

MAIN:162Ω

SUB:216Ω

17AM034A5

135±5˚C

1.2µF X 450VAC PM

MP35EA, MSFCC20B02

DC 12V

250 Ω

AL-FIN/Copper tube

2 X 15

1.5

■ Outdoor Unit

Type Compressor model Normal output W Comperssor oil kind Comperssor oil cc Oil Specific gravity

C o m p re s s o r

FAN &

FAN

Heat Exch.

Coil resistance(Ambient temp.25˚C) Ω Safety devices Type

Run capacitor µF x VAC Type Dia. and length mm Fan motor model Pols, rpm(at240V) Normal output W Coil resistance(Ambient temp.20˚C) Ω

Safety devices Type

Run capacitor µF x VAC Coil Rows x Steps Fin pitch mm

Model

Overloal relay Operating temp. Open ˚C

Close ˚C

Operating amp(Ambient temp.)

Operating temp. Open ˚C

Close ˚C

U Q 2 4 A 1 Q E / U Q 2 4 B 1 Q E

Reciprocating

H25B30QABH

2430

SUNISO 3GS

1,030

0.92 Start winding: Run winding :

Protector

Internal Line Break

40MF X 400VAC

Propeller

ø460

OSME-716SRC,IC-1640SOJ5A,ASS100AVEA

6P, 870RPM

70W MAIN : 58Ω - 88Ω SUB : 85Ω - 150Ω

17AM034A5

135±5˚C

3µF X 450VAC

AL-FIN/Copper tube

2 X 24

1.7

U Q 1 8 A 1 Q E / U Q 1 8 B 1 Q E

Common to Main : 1.84

MRA12016-12007

120˚C:10.7, 130˚C:9.4

AMASS-035AVEB

AL-FIN/Copper tube

Rotary

48B180JV1E7

1535

SUNISO-4GSD-T

600

0.92

Common to sub :

Protector

165

40MF X 400VAC

Propeller

ø405

4P, 980RPM

35W

MAIN : 180Ω

SUB : 225Ω 17AM037A5

150±5˚C

2.5µF X 450VAC 2 X 24

1.7

2-2

Samsung Electronics

2-3 Dimensions

2-3-1 Indoor Unit

(Front view)

(Remote control)

1080 204

(Rear view)

2-3-2 Outdoor Unit

2-3-2(a) UQ24A1QE, UQ24B1QE

58 22

Samsung Electronics

(Front view) (Rear view)

660

878

2-3

Product Specifications

2-3-3(b) UQ18A1QE, UQ18B1QE

(Front view) (Rear view)

582 787

340

2-4

Samsung Electronics

2-4 Pressure Graph

Indoor Unit : A Q 2 4 A 1 Q E

A Q 2 4 B 1 Q E

Outdoor Unit : UQ24A1QE

U Q 2 4 B 1 Q E

Indoor Unit : A Q 1 8 A 1 Q E

A Q 1 8 B 1 Q E

Outdoor Unit : UQ18A1QE

U Q 1 8 B 1 Q E

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2-5

M E M O

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3. Operating Instructions and Installation

3-1 Operating Instructions

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

1 2

4 5

NAMED OF KEY

MODE

TURBO

OFF

(UP)

(DOWN)

FUNCTION OF KEY 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, FAN SPEED is changed in the following order.

: Auto Mode : Cool Mode : Dry Mode

: Fan Only Mode : Heat Mode

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

Operating Instructions and Installation

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

1. A U TO MODE : In this mode, operation mode(COOL, HEAT) is selected automatically by the room temperature of initial o p e r a t i o n .

Room Temp Tr≥ 21°C+∆T 21°C +∆T>Tr

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

up( )/down( ) key of re m o t e c o n t ro l l e r

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. H E AT MODE : The unit operates accord i n g to the diff e rence between the setting and room temperature.(16°C~30°C) * P revention against cold wind : For about 3~5 minutes after initial operation, thermo c o n t rol or “de-ice”, the indoor fan will either not operate or operate very slowly, then switch to the selected fan speed. This period is to allow the indoor unit's heatexchanger to prewarm before emitting warm air. *High temperature release function : The outdoor unit for and compressor ON/OFF c o n t rol for safety operation, when the overheat is heat exchanger of indoor unit. *De-ice : Deicing operation is controlled by indoor unit's heat exchanger temperature and accumulating time of compre s s o r ' s o p e r a t i o n . De-ice end by sensing of the pro c e s s i n g time by de-ice Condition.

Cool Operation (Set Temp:24°C+∆T)

Heat Operation (Set Temp : 22°C+∆T)

Operation Type

4. D RY MODE : 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 )

5. TURBO MODE : This mode is available in A U TO, COOL, HEAT, 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.

6 . S L E E P 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 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 . *In HEAT mode : The setting temperature is automatically droped by 1°C each 1hour. When the temperature has been droped by total of 2°C, that temperature is maint a i n e d .

7. FAN SPEED : Manual / Auto Fan speed automatically varies depending on both the diff e rence between setting and the room temperature .

3-2

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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. *Swing Set / Auto : 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 pre s s 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.

1 2 . 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 3 . 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"

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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(10 meters).

N o t e

1. Add (18XX:20g, 24XX:30g) of re f r i g e r a n t (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).

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

Operating Instructions and Installation

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

125mm or more

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

Right

Rear

Down

Rear

Left

125mm or more

1 2

3 4 5

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Piping (Liquid) 1/4" Clamper tube

18K BTU Piping(Gas) 1/2” 24K BTU Piping(Gas) 5/8”

Installation tube Pipe-connection Vinyl tape Screw Putty Drain hose

6 7

8 9

Remote control

Remote control holder

Installation plate

3-5

Operating Instructions and Installation

3-2-2(a) Fixing the Installation Plate

(Unit : mm)

Installation plate

512

415

1. Determine the position of the pipe and drain hose hole using the right figure and drill the hole with an inner diameter of 65mm so that it slants slightly downwards.

2. If you are fixing the indoor unit to a… Then follow Steps…

Wall 3.

Window frame 4 to 6.

3. Fix the installation plate to the wall in a manner appropriate to the weight of the indoor unit.

227288

If you are mounting the plate on a concrete wall with anchor bolts, the anchor bolts must not project by more than 20mm.

4. Determine the positions of the wooden uprights to be attached to the window frame.

3-2-2(b) Purging the Unit

5. Attach the wooden uprights to the window frame in a manner appropriate to the weight of the indoor unit.

6. Using tapped screws, attach the installation plate to the wooden uprights, as illustrated in the last figure opposite.

On delivery, the indoor unit is loaded with an inert gas. All this gas must therefore be purged before connecting the assembly piping. To purge the inert gas, proceed as fol lows.

Unscrew the caps at the end of each pipe.

Result : All inert gas escapes from the indoor unit.

• To prevent dirt or foreign objects from getting into

the pipes during installation, do NOT remove the caps completely until you are ready to connect the piping.

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