Transcript
AQ18A5(6)RC SM_E_15778
2/14/04 2:47 PM
Page 43
SERVICE
Manual
SPLIT TYPE AIR CONDITIONER
E DB98-15778A(2)
Indoor Unit
Outdoor Unit
AQ18A9(0)RCF AQ24A1(2)RC
UQ18A9(0)RCF UQ24A1(2)RC
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Safety Precautions The following safety precautions must be taken when using your air conditioner.
WARNING
INSTALLING
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.
◆ The unit should not be installed by the user. Ask the dealer or authorized company to install the units except room air conditioners for the U.S.A and Canada area. ◆ If the unit is installed improperly, water leakage, electric shock or fire may result. ◆ The air conditioner must be installed in accordance with national wiring regulations and safety regulations wherever applicable. ◆ Mount with the lowest moving parts at least 8.2ft(2.5m) above the floor or grade level. (If applicable) ◆ The manufacturer does not assume responsibility for accidents or injury caused by an incorrectly installed air conditioner. If you are unsure about installation, contact an installation specialist. ◆ When installing the built-in type air conditioner, keep all electrical cables such as the power cable and the connection cord in pipe, ducts, cable channels e.t.c to protect them against liquids, outside impacts and so on.
POWER SUPPLY LINE, FUSE OR CIRCUIT BREAKER
◆ If the power cord of this air conditioner is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard. ◆ The unit must be plugged into an independent circuit if applicable or connect the power cable to the auxiliary circuit breaker. An all pole disconnection from the power supply must be incorporated in the fixed wiring with a contact opening of >3mm. ◆ Do not use an extension cord with this product. ◆ If the unit is equipped with a power supply cord and a plug, the plug must be accessible after installation. ◆ This appliance must be installed accordance with the national wiring regulations.
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Ι
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Contents DISASSEMBLE AND REASSEMBLE 1. Indoor unit 2. Outdoor unit
ΙΙ SET UP THE OPTION CODE ΙΙΙ
4 8
12
TROUBLESHOOTING
ΙΛ
Λ ΛΙ ΛΙΙ ΛΙΙΙ ΙΧ
1. Items to be checked first 2. Abnormal diagnosis by symptom 3. Replace PCB module
15 16 21
ASSEMBLY DRAWING AND PART’S LIST 1. Indoor unit 2. Outdoor unit 3. PCB Box
22 24 28
REFRIGERATING CYCLE BLOCK DIAGRAM
29
PERFORMANCE CURVE
30
PCB DIAGRAM
36
WIRING DIAGRAM 1. Indoor unit 2. Outdoor unit
38 39
SCHEMATIC DIAGRAM 1. Indoor unit
41
SPLIT TYPE AIR CONDITIONER 3
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Ι Disassemble and reassemble Stop operation of the air conditioner and remove the power cable before repairing the unit.
1 Indoor unit If you disassemble the heat exchanger, you must pump down at first. No. 1
Part
Procedure
Front Panel
1) 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. *Taking off the deodorizing and Electrostatic filter out. (Option)
5) Loosen one of the right screw and separate the terminal cover. 6) Loosen three screws of front grille.
4
Remark
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Part
Procedure
Front Panel
7) Pull the upper left and right of discharge softly so that the outside cover is pulled out.
Remark
8) Pull softly the lower part of discharge and push it up.
Caution Assemble the front panel and fix the hooks of left and right.
2
Assembly Tray Drain
1) Separate the drain hose from the extension drain hose. 2) Take the display PCB out. (Center of the indoor unit)
3) Pull tray drain out from the back body.
5
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Ι Disassemble and reassemble (cont’d)
No.
Part
3
Electrical Parts (Main PCB)
Procedure 1) Take out all the connector of PCB on the upper part. 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.
4
Heat Exchanger
1) Loosen two ground screws at the right side. 2) Separate the connection pipe. 3) Separate the bush body at the upper side and holder at the rear side. 4) Loosen the two screws at the left side. 5) Lift the heat exchanger up a little to push the upper side to separate it from the indoor unit.
6
Remark
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No.
Part
5
Fan Motor and Cross Fan
Page 7
Procedure
Remark
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.
7
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Ι Disassemble and reassemble (cont’d) 2 Outdoor unit ■ UQ18A9(0)RCF No. 1
Part Common Work
Procedure 1) Loosen the fixing screws and separate the cover control. 2) Separate the connection wire from the terminal block.
3) Loosen the fixing screws and separate the upper cabinet.
4) Loosen the fixing screws and separate the front cabinet.
5) Loosen two screws and pull up the control box.
6) Loosen the nut on the terminal cover and open it.
7)Separate the comp lead wire.
8
Remark
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Procedure
1
Common Work
8) Loosen the fixing screws and separate the cabinet side.
2
Fan and Motor
1) Remove the nut flange (Turn to the clockwise).
Remark
2) Separate the fan.
3) Loosen four screws to separate the motor.
3
Heat Exchanger and Compressor
1) Release the refrigerant at first. 2) Disassemble the inlet and outlet pipeby welding. 3) Loosen the fixing screws of the heat exchanger. 4) Separate the heat exchanger. 5) Loosen three bolts of the compressor. 6) Separate the compressor.
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Ι Disassemble and reassemble (cont’d)
■ UQ24A1(2)RC No. 1
Part Common Work
Procedure 1) Loosen the fixing screws and separate the cover control. 2) Separate the connection wire from the terminal block.
3) Loosen the fixing screws and separate the upper cabinet.
4) Loosen the fixing screws and separate the front cabinet.
5) Loosen three screws and pull up the control box.
6) Separate the terminal cover and separate the comp lead wire.
10
Remark
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Procedure
1
Common Work
7) Loosen the fixing screws and separate the cabinet side.
2
Fan and Motor
1) Loosen the fixing bolt and separate the fan.
Remark
2) Loosen four fixing bolts to separate the motor.
3
Heat Exchanger and compressor
1) Release the refrigerant at first. 2) Disassemble the inlet and outlet pipe by welding. 3) Loosen the fixing screws of the heat exchanger. 4) Separate the heat exchanger. 5) Loosen four bolts of the compressor. 6) Separate the compressor.
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ΙΙ Set up the option code
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.
Step 1
Preparing for the remote control to the main PCB option set. 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 2
Note
Preparing for the remote control option set.
In case that the wrong letter has been selected; continue to press the button until the correct letter appears. 1. If the number “ 2. Every time you 3. Every time you from ~ ( ,
”appears on the display, proceed to the second stage. press the 1) and 7) button, “ ” and “ ” continue to appear. press the 2), 3), 4), 5), 6), 8), 9), 10), 11), 12) button, the number increases , , , , , , , , ) and , , , , , in order.
1) If the first number is until appears.
12
, it is correct. Otherwise, press the
button
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.
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7) If the first number is , it is correct. Otherwise, press the until appears.
Step 3
button
8) When pressing the
button
~
on the display, select one of them.
9) When pressing the
button
~
on the display, select one of them.
10) When pressing the
button
~
on the display, select one of them.
11) When pressing the
button
~
on the display, select one of them.
12) When pressing the
button
~
on the display, select one of them.
Reconfirming the option set after completing Example : 014A25-1700b7 Press the button for the “ ” mode and the display will be shown as Press the button for the “ ” mode and the display will be shown as
Step 4
Pressing the
. .
(On/Off) button
When pressing the (On/Off)button in the direction of the remote control for unit, it sounds beep or ringing and the first LED (STANDARD)lamp on the left side is flickering at the same time, then the input option is completed. If it doesn’t sound ringing, try again by pressing the (On/Off)button.
Step 5
Testing the unit 1 Remove the battery from the remote control. 2. Insert the battery into the remote control. 3. Press the (On/Off)button in the direction of the remote control for set.
Note
Error mode 1. If all lamps of the indoor units are flickering, plug out and in again and press the (On/Off) button again. 2. If the unit doesn’t work properly or all lamps are continuously flickering after setting the option code, check that the option code is set properly for its own model.
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ΙΙ Set up the option code (cont’d) Table of the option code
14
Model
Option code
AQ18A9RCF
095415-1A021d
AQ18A0RCF
085415-1A021d
AQ24A1RC
097617-1A023F
AQ24A2RC
087617-1A023F
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ΙΙΙ Troubleshooting 1 Items to be checked first 1) The input voltage should be rating voltage within ±10% range. The air conditioner may not operate properly if the voltage is out of this range. 2) Is the connection cable linking the indoor unit and the outdoor unit properly? The indoor unit and the outdoor unit shall be linked by seven cables. Check the terminals if the indoor unit and outdoor unit are properly linked by the same number of cables. Otherwise the air conditioner may not operate properly. 3) When a problem occurs due to the contents illustrated in the table below, it is a symptom not related to the malfunction of the air conditioner. No.
Operation of air conditioner
Explanation
1
The STD operation indicator, LED blinks when a power plug of the indoor unit is plugged in at first.
It indicates power is on. The LED stops blinking if the operation On/Off button on the remote control is pushed.
2
In the Cool mode, the compressor does not operate at a room temperature higher than the setting temperature while the indoor fan operates. In the Heat mode, the compressor does not operate at a room temperature lower than the setting temperature that indoor fan should operate.
It happens after three minutes when the compressor is reoperated. The same phenomenon occurs when a power is on. As a phenomenon that the compressor is reoperated after three minutes, the indoor fan is adjusted automatically with reference to a temperature of the air.
3
The Fan speed operating is not allowed in the Auto or Dry mode.
The speed of the indoor fan is set to LL in the Dry mode. Fan speed is five steps are selected automatically in the Auto mode.
4
Compressor stops operating intermittently in the Dry mode.
Compressor operation is controlled automatically in the Dry mode depending on the room temperature and humidity.
Compressor of the outdoor unit is operating although it is turned off in the Heat mode.
When the unit is turned off while de-ice is activated, the compressor continues operating for up to 9 minutes (maximum) until the deice is completed.
Only timer LED of the indoor unit lights up and the air conditioner does not operate.
The Timer is being activated and the unit is in the ready mode. The unit operates normally if the timer operation is cancelled.
7
The compressor and indoor fan stop intermittently in the Heat mode.
The compressor and indoor fan stop intermittently if room temperature exceeds a setting temperature in order to protect the compressor from overheated air in a Heat mode.
8
Indoor fan and outdoor fan stop operating intermittently in the Heat mode.
The compressor operates in a reverse cycle to remove exterior ice in the Heat mode, and indoor fan and outdoor fan do not operate intermittently for within 20% of the total heater operation
The compressor stops intermittently in the Cool mode or Dry mode and the fan speed of the indoor unit decreases.
The compressor stops intermittently or the fan speed of the indoor unit decreases to prevent inside/outside air from freezing depending on the inside/outside air temperature.
5 6
9
4) Indoor unit observes operation condition of the air conditioner, and displays self diagnosis details on the display panel. No.
Display
Self Diagnosis
1 2 3 4 5 6
STD LED blinking (1Hz) TIMER LED blinking (1Hz) STD and TIMER LED blinking (1Hz) BIO LED blinking (1Hz) STD, BIO and TIMER LED blinking(1Hz) All LED blinking(1Hz)
Restore from power failure (input initial power) Indoor unit Room sensor Error (open or short) Indoor unit heat exchanger temperature sensor Error (open or short) Indoor fan malfunctioning (for spead is Below 450rpm) EEPROM Error Option Error (option wasn’t setup or option data error)
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ΙΙΙ Troubleshooting (cont’d) 2 Abnormal diagnosis by symptom 1. No Power - Initial diagnosis 1) Checklist : (1) Is input voltage normal? (voltage rating within ±10% range) (2) Is AC power linked correctly? (3) Are connections between primary side, secondary side of the power transformer and PCB good? (4) Is input voltage of DC regulator IC KA7805 (IC02) normal? (11VDC-12.5VDC) (5) Is output voltage of DC regulator IC KA7805 (IC02) normal? (4.5VDC-5.5VDC)
2) Troubleshooting procedure
Remove the power cord and plug it in again in approx. 5 seconds Does the lamp blink? NO
YES
YES Does it start operating when you push the On/Off button of the remote control? NO Is transmission display of the remote control unit blinking?
Is DC voltage of PCB display normal? NO
Replace PCB display
Is the rating Voltage ±10% range applied to the between #1 and #3 of CN78 NO
YES
Check linkage between a power cord and a terminal tap Check fuse
Does 11~12.5VDC appear in the input side of the DC regulator IC KA7805(IC02)? NO
YES
Normal
NO
YES Does the ‘beep’ sound from the main unit? NO YES Is DC voltage of the PCB module normal? YES Are voltages of #8(IC04 : compressor), #7(IC04 : 4way valve) and #6(IC04 : outdoor fan) of Micom normal? 5VDC is voltage of #60((IC04 : indoor fan) of Micom normal?
Refer to remote control unit abnormal diagnosis
NO
Replace PCB module Refer to page 21
YES
Are voltages at RY71(Compressor) and RY72 (Outdoor fan) normal? ; DC12V Is voltage at SS71(indoor fan)?
DC5V 10ms
YES
YES
NO Is voltage of #33 terminal of Micom (IC04)normal? 0VDC Is voltage of #18 terminal of Micom (IC04)normal? 5VDC
Replace PCB module Refer to page 21
NO
Check connections compressor, outdoor fan and indoor fan
Replace RY71, RY73, RY72 and SS71
NO
YES
Is output voltage of ICO2 normal?(DC5V) Is voltage of #52 terminal of Micom (IC04)normal?
Check PCB pattern Replace PCB module Refer to page 21
10ms YES
NO
NO
Are voltage of #48 and #49 of Micom (IC04)normal?
NO
YES
Replace IC02
Is voltage output terminal of D101~D105(IN4007) normal? YES
NO
Replace resonator (X501) 100ns Is operation normal? YES OK
16
YES NO
Replace Micom
OK
Replace IN4007
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2. When the Indoor Unit Fan Does Not Operate - Initial Diagnosis 1) Checklist : (1) (2) (3) (4)
Is Is Is Is
the indoor unit fan motor properly connected with the connector (CN73)? the AC voltage correct? HALL IC in the indoor fan motor properly connected with the connector (CN43)? the running capacitor properly connected with PCB board?
2) Troubleshooting procedure
After unplugging out, the power cord should be reconnected within five seconds.
YES Check as the procedure “No power” Refer to page 16
Does the STD lamp(Orange) blink? NO YES Does the Solid State Relay(SS71) work properly?
Micom is abnormal. NO
Test rod location +
-
SS71-
SS71-
Normal Voltage
12V
YES
Is the supply voltage of the fan motor sufficient? Test rod location PCB CN73
Condition
pin #3 and #5
Fan operate
NO
PCB is abnormal.
Replace the PCB module Refer to page 21
Normal voltage about AC 180V MFC is abnormal.
Replace MFC
YES Fan motor is abnormal.
Replace Fan motor
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ΙΙΙ Troubleshooting (cont’d)
3. When the Outdoor Unit Does Not Operate - Initial Diagnosis 1) Checklist : (1) (2) (3) (4)
Is Is Is Is
input voltage normal? (voltage rating within ±10% range) the set temperature of the remote control higher than room temperature in the Cool mode? the POWER IN connector (CN78) linked correctly? the outdoor unit properly connected with the terminal block connector(6P)?
2) Troubleshooting procedure After unplugging out, the power cord should be reconnected within five seconds.
NO
Does the STD lamp blink? YES Does the timer lamp blink during operation?
YES
Check as the procedure “No power” Refer to page 16 Check PCB and room temperature sensor
Room temperature sensor is abnormal.
NO 1
Is the power relay RY71 operated by adjusting YES the room temperature? Test rod location
2
1
PCB is abnormal. 3
Normal
+
-
Condition
Voltage
IC06 Pin #6
GND
RY71 ON
DC 4.8V
Replace the PCB module Refer to page 21
NO NO
Is voltage rating within ±10% range applied relay between CN 78 1 and 3 ?
Power relay is abnormal.
YES
Outdoor unit is abnormal. 1
2 NO
Is the room sensor registered normal? 50°F(10°C)
68°F(20°C)
86°F(30°C)
17.96k Ω
12.09k Ω
8.3k Ω
YES
3
18
Replace the Power relay
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4. When the UP/DOWN Louver Motor Does Not Operate - Initial Diagnosis 1) Checklist : (1) Is input voltage normal?(voltage rating within ±10% range) (2) Is the UP/DOWN louver motor properly connected with the connector (CN61)?
2) Troubleshooting procedure Remove the power cord and plug it in again in approx. five seconds.
NO
Does the STD lamp blink?
Check as the procedure “No Power”. Refer to page 16.
YES Does it start operating when you push the swing button of the remote control?
YES
Normal
NO NO
Is voltage of #1~#4 of Micom (ICO4) change?(Squarewave)
Micom (IC04) is abnormal.
YES Is voltage of pin #10, #15 and #16 of IC06 (KID65003) change?(Squarewave)
NO
Driver IC06(KID65003) or IC06 is abnormal.
YES UP/DOWN louver motor is abnormal.
5. When there is no warm air in the current mode 1) Checklist : (1) Is the set temperature of Remote Control lower than room temperature in the Heat mode? (2) Is the Indoor PCB properly connected with the CN78 connector?
2) Troubleshooting procedure After training on, the Heating starts in five minutes.
YES Normal
NO NO Is the number #7 of Micom (IC04) DC 4.8 V?
Micom is abnormal.
YES NO Is the number #12 of IC06 (KID65003) LOW? YES Is voltage rating between CN71 #5 and CN78 #1 within ±10% range? YES 4 way valve of the outdoor unit or connection cable is abnormal.
IC07 is abnormal NO RY73 is abnormal
Replace PCB module Refer to page 21
Replace 4 way valve Check connection cable
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ΙΙΙ Troubleshooting (cont’d)
6. When the remote control does not operate 1) Troubleshooting procedure
Remove the power cord and plug it in again approx. five Seconds
Does the STD lamp blink?
NO Check as the procedure “No Power” Refer to page 16
YES The melody sounds from the indoor unit when you push the On/Off button on the remote control.
YES
Normal
NO Is voltage of battery less than 2.5V (Remote Control Unit)?
YES
Replace the battery
NO Is LCD display status of the remote control normal?
NO
LCD is abnormal.
YES Does the transmission display lamp blink when you push the On/Off button on the remote control?
NO
Replace button
YES NO Is voltage of #30 of remote control of Micom (IC04) changed?
Micom is abnormal.
YES NO Is voltage at collector of Q601 or Q602 changed?
Q601(C4375Y) or Q602(C1623Y) is abnormal. IR LED(CL-1L5EU) is abnormal.
YES
YES Is voltage of #26 of Micom (IC04) changed (Indoor unit)? NO Micom (IC04) is abnormal.
20
Receiver module is abnormal.
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3 Replace PCB module
Remove the power cord
Replace the PCB module
Check the connection and plug in
NO Does the display lamp blink or STD lamp blink?
Replace another PCB module
YES Refer to ‘set up the option code’
21
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ΙΛ Assembly drawing and part’s list 1 Indoor unit
19
18
17
13 13-1 16 12
11
14
9
8
10-1
10-2
21 15
10 20 6
6-1
7
7-1
7-2
5 3
3-2
22
3-3
4 3-1
2
1
22
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Part’s List Q’TY No.
Code No.
Description
Specification
AQ18A9(0)RCF
AQ24A1(2)RC
1
DB64-00127A
GRILLE AIR INLET
HIPS
1
1
2
DB63-30150C
GUARD AIR FILTER
PP
2
2
3
DB95-00287N
CLEANER FILTER ASS´Y
ASS’Y
1
1
3-1
DB61-10164B
CASE-CLEANER FILTER
PP
2
2
3-2
DB63-00436D
CARBON FILTER
POLYESTER/CARBON
1
1
3-3
DB63-00435D
CLEANER FILTER
POLYESTER/COTTON
1
1
4
DB63-00091A
COVER TERMINAL
ABS(V0)
1
1
5
DB64-00130A
FRONT PANEL
HIPS
1
1
6
DB93-00311C
ASS´Y PCB DISPLAY
ASS’Y
1
1
6-1
DB63-00115A
COVER DISPLAY UP
ABS(BLK)
1
1
7
DB94-00099B
ASS´Y TRAY DRAIN
ASS´Y
1
1
7-1
DB31-10153B
STEPPING MOTOR
MP24S
1
1
7-2
DB66-00104A
BLADE-H
HIPS
1
1
8
DB96-01125A
ASS´Y EVAP
PLATE1.2(5/8”)
-
1
DB96-01125G
ASS´Y EVAP
SLIT1.5(1/2”)
1
-
9
DB67-00058A
SPACER-EVAP
PVC
1
1
10
DB90-00884A
ASS´Y HOLDER MOTOR(24K)
ASS’Y
-
1
DB90-00433Y
ASS´Y HOLDER MOTOR(18K)
ASS’Y
1
-
10-1
DB61-00601A
HOLDER MOTOR
PP(Vo)
1
1
10-2
DB65-00039G
TERMINAL BLOCK ASS´Y
6P, 25A
1
1
11
DB31-10151D
MOTOR FAN IN
IIC-9430SKC7B
1
1
12
DB94-00040J
ASS´Y-CROSS FAN
ø95 x L
1
1
13
DB94-40003A
RUBBER BEARING
CR(BLK)
1
1
13-1
DB94-40007A
BEARING MOTOR
ASS’Y
1
1
14
DB93-01984A
ASS´Y PCB MAIN
PD-SH30ZC-00
1
1
15
DB32-00027B
ASS´Y-THERMISTOR
103AT/DSK-103FW
1
1
16
DB61-10163A
CASE CONTROL
ABS(VO)
1
1
17
DB94-00107A
ASS´Y BACK BODY
ASS’Y
1
1
18
DB90-00434A
ASS´Y HOLDER PIPE
ASS’Y
1
1
19
DB70-10663A
PLATE HANGER
SGCC-M
1
1
20
DB63-00227A
COVER-TERMINAL BLOCK
ABS
1
1
21
DB70-00115A
PLATE-KNOCKOUT
SGCC-M
1
1
22
DB93-00861B
ASS´Y-REMOCON
ASS’Y
1
1
23
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ΙΛ Assembly drawing and part’s list (cont’d) 2 Outdoor unit ■ UQ18A9(0)RCF
10
8 16 7 6
9
11 12-3 12-4
14
12
15
12-2 12-1 15-2
4
15-1 15-3
1 5 3
15-5 15-7 15-6
15-4
13 13-1
12-5
2
17 17-1
24
17-2
17-3
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Part’s List No.
Code No.
Description
Specification
Q’TY
1 2 3 4 5 6 7 8 9 10 11 12 12-1 12-2 12-3 12-4 12-5 13 13-1 14 15 15-1 15-2 15-3 15-4 15-5 15-6 15-7 16 17-1 17-2 17-3
DB90-00653K DB90-20160H DB67-50063A DB60-30020A DB31-00056D DB61-20008C DB94-00165A DB96-01524B DB90-40176B DB90-10671L DB90-10613D 48D190IU1EH DB73-00082A DB60-30028A DB60-30018A DB63-10165D DB95-00212C DB99-00462A DB62-00898B DB99-00175C DB93-00673K 3501-001184 2501-001238 DB65-00040B DB95-90026B 3601-000236 2501-001370 DB32-00007A DB72-50537A DB67-20011A DB60-30010A DB60-30010C
ASS’Y-CABI FRONT ASS’Y-BASE OUT FAN-PROPELLER NUT FLANGE MOTOR FAN OUT BASE-MOTOR ASS’Y-PARTITION ASS’Y-COND UNIT ASS’Y-COVER-CONTROL ASS’Y-CABI BACK ASS’Y-CABI UPPER COMPRESSOR GROMMET ISOLATOR NUT WASHER NUT FLANGE COVER-TERMINAL ASS’Y-HEATER ASS’Y-4WAY V/V PACKED V/V 1/2" ASS’Y-CHECK V/V ASS’Y-CONTROL OUT POWER-RELAY CAPACITOR TERMINAL BLOCK ASS’Y SPARK KILLER FUSE MOTOR CAPACITOR THERMOSTAT CLOTH SOUND DRAIN PLUG OUT NUT FLARE 1/4" NUT FLARE 1/2"
ASS’Y ASS’Y AS+G/F20% M6LF ASS030ZTEC SGCC-M ASS’Y ASS’Y ASS’Y ASS’Y ASS’Y 1PH, 208/230V, 60Hz NR, BLK M8 M5 PBT, BLK 240V, 45W ASS’Y P-TYPE ASS’Y ASS’Y UZ 2A BB220 25A 40uF/450VAC 8P/35A ASS’Y 2A, 250V 2.5uF/450VAC PW 2N PP C3771BD C3771BD
1 1 1 1 1 1 1 1 1 1 1 1 3 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2
25
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ΙΛ Assembly drawing and part’s list (cont’d)
■ UQ24A1(2)RC
10 8 9
16
6
5
11
7 13-2
13
14
15-6
4
15-4 15-1
12-2
15
12-1
1 3
12
15-5
13-1
15-3 15-2
2
17 17-1
17-2
26
17-3
AQ18A5(6)RC SM_E_15778
■
2/12/04 9:10 PM
Page 27
Part’s List No.
Code No.
Description
Specification
Q’TY
1
DB90-00652P
ASS´Y-CABI FRONT
ASS´Y
1
2
DB90-20210A
ASS´Y-BASE OUT
ASS´Y
1
3
DB67-50074A
FAN-PROPELLER
AS+G/F20%
1
4
DB60-20020A
BOLT SPECIAL
M8 L25
1
5
DB31-00027F
MOTOR FAN OUT
OSM-906SRC
1
6
DB95-20147A
ASS´Y-MOTOR B/K
ASS´Y
1
7
DB94-50039C
ASS´Y-PARTITION
ASS´Y
1
8
DB96-01916B
ASS´Y-CONDENSER
ASS´Y
1
9
DB90-40176B
ASS´Y COVER-CONTROL
ASS´Y
1
10
DB64-60160B
CABI SIDE OUT
SC-90073T
1
11
DB90-10616D
ASS´Y-CABI UPPER
ASS´Y
1
12
DB95-10339G
COMPRESSOR
H29B26UABCA
1
12-1
DB73-10008A
GROMMET MOUNT
CR
4
12-2
DB60-30028A
NUT WASHER
M8
4
13
DB99-10149E
ASS´Y-4WAY V/V
ASS´Y
1
13-1
DB62-40055F
PACKED V/V 5/8"
P-TYPE
1
13-2
DB62-00526C
4WAY V/V
RANCO(V269205)
1
14
DB99-10138H
ASS´Y-CHECK V/V
ASS´Y
1
15
DB93-00306G
ASS´Y CONTROL OUT
ASS´Y
1
15-1
DB34-90054B
SWITCH MAGNET
41NB21AG
1
15-2
2501-001237
CAPACITOR
35µFx450VAC
1
15-3
DB65-00040B
TERMINAL BLOCK
8P, 35A
1
15-4
DB95-90026B
SPARK KILLER
-
1
15-5
3601-000236
FUSE
2A,250V
1
15-6
2501-001379
MOTOR CAPACITOR
4µF/450VAC
1
16
DB72-50615A
CLOTH SOUND COMP
-
1
17-1
DB67-20011A
DRAIN PLUG OUT
PP
1
17-2
DB60-30010A
NUT FLANGE 1/4"
C3771BD
2
17-3
DB60-30010D
NUT FLANGE 5/8"
C3771BD
2
27
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Page 28
ΙΛ Assembly drawing and part’s list (cont’d) 3 PCB Box
2
3
1 5 4
■
Part’s List No.
Description
Specification
Q’TY
AQ18A9(0)RCF / AQ24A1(2)RC
28
1
ASS’Y MAIN PCB
2
ASS’Y THERMISTOR
103AT / DKS-103FW
1
3
ASS’Y PCB DISPLAY
ASS’Y
1
4
CASE CONTROL
ABS
1
5
COVER DISPLAY
ABS
1
DB93-01984A
1
Remark
AQ18A5(6)RC SM_E_15778
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Page 29
Λ Refrigerating cycle block diagram
Capillary tube T1
Check valve
2-way valve Liquid side
Heat exchanger (Evaporator)
Propeller fan
Cross fan
Capillary tube Heat exchanger (Condenser)
T2 Gas side 3-way valve
4-way valve Cooling Heating
Compressor
Gas leak check point
Refrigerating cycle temperature and pressure STD Pressure Model
Operating Condition
3-Way Valve Cooling AQ18A9(0)RCF Heating
Cooling AQ24A1(2)RC Heating
Piping Temp.[°F (°C)]
Use Temp. Condition[°F (°C)] Indoor
(psi) T1
T2
Outdoor
DB
WB
DB
WB
Standard
64~78
46~54(8~12)
46~54(8~12)
80(27)
67(19)
95(35)
75(24)
Max over load
-
-
-
80(27)
67(19)
95(35)
75(24)
Low temp
-
-
-
67(19)
57(14)
67(19)
57(14)
Standard
270~327
90~97(32~36)
140~158(60~70)
70(21)
59(15)
47(8)
43(6)
Max over load
-
-
-
80(27)
-
75(24)
65(18)
Low temp
-
-
-
70(21)
59(15)
35(2)
33(1)
Standard
57~71
46~54(8~12)
46~54(8~12)
80(27)
67(19)
95(35)
75(24)
Max over load
-
-
-
80(27)
67(19)
115(46)
75(24)
Low temp
-
-
-
67(19)
57(14)
67(19)
57(14)
Standard
270~327
90~97(32~36)
140~158(60~70)
70(21)
59(15)
47(8)
43(6)
Max over load
-
-
-
80(27)
-
75(24)
65(18)
Low temp
-
-
-
70(21)
59(15)
35(2)
33(1)
29
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Page 30
ΛΙ Performance curve
N o t e Data is based on condition of indoor humidity 50% and cooling mode. Air flow should be set at HI.
■ AQ18A9(0)RCF Total power consumption Total power consumption (x10 3kW)
2.3 71 67 63 59
2.1 Indoor intake air WB temperature(°F)
1.9 1.7 1.5 1.3 1.1
55
65
75
85
95
105
115
Outdoor intake air DB temperature(°F)
Total capacity
Total capacity (x10 3Btu/h)
20 18 16
71 67 63 55
14 Indoor intake air WB temperature(°F)
12 10 8 6 4 2 0 55
65
75
85
95
105
Outdoor intake air DB temperature(°F)
30
115
2/12/04 9:10 PM
Page 31
High pressure
Condensing pressure (psi.G)
360 86 80 75 70
310 260
Indoor DB temperature(°F)
210 160 110 55
65
75
85
95
105
115
Outdoor ambient DB temperature(°F)
Low pressure 100 90
Suction pressure (psi.G)
AQ18A5(6)RC SM_E_15778
80 70
86 80 75 70
Indoor DB temperature(°F)
60 50 40 30 20 55
65
75
85
95
105
115
Outdoor ambient DB temperature(°F)
31
AQ18A5(6)RC SM_E_15778
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Page 32
ΛΙ Performance curve (cont’d)
Suction temperature 80
Suction temperature (°F)
70 60
86
50
80
40
75
Indoor DB temperature (°F)
30
70
20 10 0 55
65
75
85
95
105
115
Outdoor ambient DB temperature (°F)
Discharge temperature (°F)
Discharge temperature 220
86
200
80 75 70
180 160 Indoor DB temperature(°F)
140 120 100 55
65
75
85
95
Outdoor ambient DB temperature (°F)
32
105
115
AQ18A5(6)RC SM_E_15778
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Page 33
■ AQ24A1(2)RC
Total power consumption Total power consumption (x10 3kW)
2.9
71 67 63 59
2.7 2.5 Indoor intake air WB temperature(°F)
2.3 2.1 1.9 1.7 1.5 1.3 55
65
75
85
95
105
115
Outdoor intake air DB temperature(°F)
Total capacity
Total capacity (x10 3Btu/h)
25 71 67 63 55
20 Indoor intake air WB temperature(°F)
15 10 5 0 55
65
75
85
95
105
115
Outdoor intake air DB temperature(°F)
33
AQ18A5(6)RC SM_E_15778
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Page 34
ΛΙ Performance curve (cont’d)
High pressure
Condensing pressure (psi.G)
360 86 80 75 70
310 260 Indoor DB temperature(°F)
210 160 110 55
65
75
85
95
105
115
Outdoor ambient DB temperature(°F)
Low pressure 100
Suction pressure (psi.G)
90 80 70
86 80 75 70
Indoor DB temperature(°F)
60 50 40 30 20 55
65
75
85
95
Outdoor ambient DB temperature(°F)
34
105
115
2/12/04 9:10 PM
Page 35
Suction temperature 80
Suction temperature (°F)
70 60
86
50
80
40
75
Indoor DB temperature(°F)
30
70
20 10 0 55
65
75
85
95
105
115
Outdoor ambient DB temperature (°F)
Discharge temperature 220 86
Discharge temperature (°F)
AQ18A5(6)RC SM_E_15778
200
80 75
180
70
160 Indoor DB temperature (°F)
140 120 100 55
65
75
85
95
105
115
Outdoor ambient DB temperature (°F)
35
AQ18A5(6)RC SM_E_15778
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ΛΙΙ PCB diagram 1 Main PCB
36
Page 36
AQ18A5(6)RC SM_E_15778
■
2/12/04 9:11 PM
Page 37
Part’s List Location No.
Description
Specification
Q’TY
C103 C702 CR71 C701 RY71,72,73, 74 SS71 IC04 IC02 TN11 FT71 BZ61 F701 F701 D101,102,103,104 D105 ZD12 ZD13 ZD11 Q603 Q401,601,602 Q901,902 Q201 PC11 PC12 IC01 VA71,72 R405,406 R104,105 R101 R206,501,502,601,604,606,902 R201,207,208,401,403,408,603, R605,608 R910,911,912,913 R102,103 R106,901 R607 R402 R602 R202,203 R404,407 C203,204,401 C404,903 C102,104,107,109,114,116,117, C118,201,202,402,403,501,901 C105 C601 C108 C101,110 X501 F702 CN78 CN71 CN73 CN91 CN43 CN41 CN61 IC07 IC03 IC06 L101
C-CERAMIC,DISC C-FILM,MPPF C-FILM,MPPF C-FILM,MPEF RELAY-MINIATURE SSR IC MICOM IC-VOLT REGU TRANS CHOKE-COIL BUZZER FUSE HOLDER-FUSE DIODE-RECTIFIER DIODE-RECTIFIER DIODE-ZENER DIODE-ZENER DIODE-TVS TR-SMALL SIGNAL TR-SMALL SIGNAL TR-DIGITAL TR-DIGITAL PHOTO-COUPLER PHOTO-COUPLER IC-PWM CONTROLLER VARISTOR R-CARBON R-CARBON R-CARBON R-CARBON R-CARBON
2.2nF,20%,400V,Y5U,TP,12. 100nF,10%,275V,BK,18x6x12,15 2000nF,+10-5%,450V,BK,38x18x 220NF,10%,275V,BK,26.5X8.5X1 12VDC,200MW,3000MA,1FORM 12Vdc,-,2A,1mS,1mS S3C8469(SDIP) KA7805A,TO-220AB,1A,0/125C, 2UEW0.30/2UEW0.45,1.5KV,1KHz,-,7Pi LSA-05230P,AC250V,2A,30.5x22x3 CBE2220BA,STICK,-,-,-,-,-,-,FST,250V,3.15A,20MM,VDE,50T-03 FH-51H,7.5A,-,-,-,-,1N4007,1000V,1A,DO-41,TP UG2B,100V,2A,DO-204AC,TP DIODE-ZENER;MTZ3.6A,3.6V,3.455-3.695V,50 DIODE-ZENER;MTZJ11B,11V,10.5-11.05V,500m DIODE-TVS;ST02D-200,185/200/215V,200W,DO TR-SMALL SIGNAL;KSA708-Y,PNP,800mW,TO-92 TR-SMALL SIGNAL;KSC945,NPN,250mW,TO-92,T TR-DIGITAL;KSR2002,PNP,300MW,10K/10K,TOTR-DIGITAL;KSR1002,NPN,300MW,10K/10K,TOPHOTO-COUPLER;TR,50-600%,200mW,DIP-4,ST PHOTO-COUPLER;TR,20-300%,200mW,DIP-4,ST IC-PWM CONTROLLER;255,DIP,8P,300MIL,PLAS 560V,2500A,17.5x7.5mm,TP 330ohm,5%,1/8W,AA,TP,1.8x3.2mm 220OHM,5%,1/4W,AA,TP,2.4X6.4MM 470OHM,5%,1/4W,AA,TP,2.4X6.4MM 10KOHM,5%,1/8W,AA,TP,1.8X3.2MM 1KOHM,5%,1/8W,AA,TP,1.8X3.2MM
1 1 1 1 4 1 1 1 1 1 1 1 1 4 1 1 1 1 1 3 2 1 1 1 1 2 2 2 1 7 9
R-CARBON R-CARBON R-CARBON R-CARBON R-CARBON R-CARBON(S) R-METAL OXIDE(S) R-METAL C-CERAMIC,MLC-AXIAL C-CERAMIC,MLC-AXIAL C-CERAMIC,MLC-AXIAL
3.3KOHM,5%,1/8W,AA,TP,1.8X3.2MM 330KOHM,5%,1/4W,AA,TP,2.4X6.4MM 4.7KOHM,5%,1/8W,AA,TP,1.8X3.2MM 560OHM,5%,1/4W,AA,TP,2.4X6.4MM 6.8KOHM,5%,1/8W,AA,TP,1.8X3.2MM 1KOHM,5%,1/2W,AA,TP,2.4X6.4M 51Kohm,5%,2W,AA,TP,4x12 6.8Kohm,1%,1/8W,AA,TP,1.8x3.2m 10nF,+80-20%,25V,Y5V 1nF,10%,50V,Y5P,TP,1 100nF,+80-20%,50V,Y5
4 2 2 1 1 1 2 2 3 2 14
C-AL C-AL C-AL C-AL RESONATOR-CERAMIC FUSE-RADIAL LEAD CONNECTOR-HEADER CONNECTOR-HEADER CONNECTOR-HEADER CONNECTOR-HEADER CONNECTOR-HEADER CONNECTOR-HEADER CONNECTOR-HEADER IC-MASK ROM IC-RESET IC-DRIVE COIL CHOKE WIRE-SO COPPER PCB-MAIN
1000uF,20%,25V,GP,TP,10x20,5 47uF,20%,50V,GP,TP,6.3x11,2.5 470uF,20%,25V,GP,TP,10x16,5 6.8uF,20%,450V,GP,TP,10x16mm,5 4MHz,0.5%,TP,10.0x5.0x 250V,1A,TIME-LAG,-,8.5x 1WALL,3P/5P,1R,3.96mm,S 1WALL,3P/5P,1R,3.96mm,S 1WALL,3P/5P,1R,3.96mm,S BOX,10P,1R,2.5mm,STRAIG BOX,3P,1R,2.5mm,STRAIGH BOX,4P,1R,2.5mm,STRAIGH BOX,6P,1R,2.5mm,STRAIGH 93LC56B,8BIT,-,DIP,8P,-,-,KA7533,DIP,-,-,-,-,KID65003AP,DIP,16P,STICK,TR-AR 5.0mH,-,8.0*11.0,-,-,PE-M10 PI0.6,SN,T,52MM,TAPING_WI PD-SH30ZC-00,FR-1,-,-,T1.6,W197
1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 2 1 35 1
37
AQ18A5(6)RC SM_E_15778
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ΛΙΙΙ Wiring diagram 1 Indoor unit ■ AQ18A9(0)RCF/AQ24A1(2)RC
This document can not be used without Samsung’s authorization.
38
AQ18A5(6)RC SM_E_15778
3/4/04 9:27 AM
Page 39
2 Outdoor unit ■ UQ18A9(0)RCF
MARK PR 20S F
NAME POWER RELAY SOLENOID COIL FUSE(2A, 250V~)
MARK TB1, 2 FM1 S
NAME TERMINAL BLOCK FAN MOTOR SPARK KILLER
This document can not be used without Samsung’s authorization.
39
AQ18A5(6)RC SM_E_15778
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Page 40
ΛΙΙΙ Wiring diagram (cont’d)
■ UQ24A1(2)RC
MARK 52C 20C C1 F
NAME MAGNETIC CONTACTOR SOLENOID COIL CAPACITOR FUSE(2A,250V~)
MARK TB 1,2 CH FM1 S
NAME TERMINAL BLOCK CRANK CASE HEATER FAN MOTOR SPARK KILLER
This document can not be used without Samsung’s authorization.
40
AQ18A5(6)RC SM_E_15778
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Page 41
ΙΧ Schematic diagram
1 Indoor unit ■ AQ18A9(0)RCF/AQ24A1(2)RC
This document can not be used without Samsung’s authorization.
41
AQ18A5(6)RC SM_E_15778
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Page 42
ELECTRONICS
This Service Manual is a property of Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable lnternational and/or domestic law.
