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– 17 –

TROUBLESHOOTING GUIDE

POWER

(green)

TIMER

(yellow)

OPERATION

(green)

INDICATION LAMP

ALARM 

INDICATION TIME

APPEARANCE, PORTION, PARTS 

SEEMED WRONG

OFF

OFF

OFF

FLASHING

OFF

OFF

FLASHING

ON

ON

ON

OFF

OFF

FLASHING

FLASHING

OFF

FLASHING

FLASHING

FLASHING

OFF

FLASHING

ON

FLASHING

once stop running with 
power lamp lighting when 
something is wrong with 
TAN, TAG, and start 
running again after 3 

〜 

20 min. 
later after that in case of 
reoccurrence, alarm 
indication appears

just after main power on 
or just after start running 
through remote controller,
alarm indication appears

protective action against 
excess current 
AC current detection

accident of controller

not cool down
not warm up

water leakage

nasty smell

METHOD OF CHECK

(press the ON/OFF button of remote controller in case of reset)

FLASHING

FLASHING

TAN, TAG don’t work at all

TAN, TAG don’t work at all,
and  after 20 sec., operation  
lamp is flashing (2 min. in
case of power on)

alarm indication appears 
immediately when press 
the operation switch

normal lamp indication 

turn alarm when 

something is wrong with 

TAN, TAG

short or open of sensor, 
temperature or incomplete 
insertion of connector

error of transmission

CT disconnection

POWER SUPPLY

REMOTE CONTROL

TAN FUSE (3.15A)

TAN TRANSFORMER

TAN TERMINAL BLOCK

PCB (RECEIVER & DISPLAY)

MIS-WIRING OR RARE CONTACT

SENSOR, TEMP. HEAT EXCHANGER

SENSOR, TEMP. DEFROST

SENSOR, TEMP. ROOM

MIS-WIRING OR RARE CONTACT

THERE IS SOMETHING NOISY

AROUND TAN, TAG

TAG TRANSFORMER

CURRENT FUSE (2.0A) FUSING

(ON THE PCB (TAG MAIN))

PREVENTION FOR OVERHEATING

RELAY(OHR)

CUTTING OFF CT

COMPRESSOR BREAKDOWN

BY DROP VOLTAGE

 

 DEFECTIVE WIRING CONTACTS 

EXCESS GAS

CAPACITOR, COMPRESSOR

 

COMPRESSOR LOCKING

check the plug inserted into the outlet and the power supply

emergency operation (display of remote controller is faint or not)

check the electric continuity by tester

check the resistance by tester [see fig.

check the electric continuity by tester

emergency operation

check the wiring connection and rare contact

check the wiring connection and rare contact

high-frequency radio, high-frequency generator, and amateur radio

check the resistance by tester [see fig.1]

accident of rectifier stack or PCB (TAG main)

leak of gas, or cut off prevention for overheating relay

change PCB (TAG main)

other than described above

check the proper voltage of power supply and use an exclusive 
power supply

check by eyes

check the pressure of gas [check 

performance curve diagram

]

if the scale of the tester swings instantly to "zero

Ω" and does not  

move back to "infinity", capacitor for compressor should be replaced

 

[NOTE.1]

other than described above

PCB (TAN MAIN)

PCB (TAG MAIN)

GAS LEAKAGE

SENSOR, TEMP. ROOM

SENSOR, TEMP. HEAT EXCHANGER

FAN MOTOR (TAN)

4-WAY VALVE

SHORT CYCLE 

(INSUFFICIENT AIR CIRCULATION)

DRAINAGE

MIS-INSTALLATION

FILTER IS CHOKED

NO USE FOR A LONG TIME

NASTY SMELL 

(CIGARETTE, FURNITURE, ETC.)

after main power on, if alarm indication appears, PCB 
(TAN main) should be replaced

after start running through remote controller, if alarm indication 
appears, PCB (TAG main) should be replaced

check the point of leakage measure the pressure of compressor 
during fixed operation 

check the resistance by tester [see table 1]

check the resistance by tester [see table 2]

check the voltage between blue and yellow in connector [see fig.2]
if it is AC 110V 

 230V, TAN fan motor should be replaced

check the resistance by tester [see fig.3]

check the blockage of air inlet & outlet of TAN, TAG

check the drain hose by eyes (it might be folded or choked)

check the TAN whether lean or not

check by eyes and clean it

use deodorizer

check the resistance by tester [see table 1]

check the resistance by tester [see table 2]

check the resistance by tester [see table 2]

[NOTE.1]   Measure the resistance by chan

ging the pole of the tester by turns.

INDICATION LAMP

Micro computer self-diagnose the points of the troubles and inform it by the combination of the status (On,Flush, or

Off)of three lamp indicators on the front panel of the indoor unit.

Содержание TAG3-A70EW

Страница 1: ...OUBLESHOOTING GUIDE 16 PERFORMANCE CURVE DIAGRAM 24 SEMICONDUCTOR LEAD IDENTIFICATION 26 SCHEMATIC DIAGRAM AND THERMISTOR RESISTANCE CHART EXPLODED VIEW INDOOR UNIT EXPLODED VIEW OUTDOOR UNIT PARTS LI...

Страница 2: ...SPECIFICATION 1 COMPRESSOR A COMPRESSOR B ROOM A1 ROOM A2 ROOM B...

Страница 3: ...Starting Current B A1 A2 6 500 2 9 600 A1orA2 9 700 B A1 A2 Cooling 6 5 2 7 5 A1orA2 7 5 B A1 A2 Heating 7 0 2 8 0 A1orA2 8 0 B A1 A2 1 420 1 120 A1orA2 1 300 B A1 A2 1 220 1 120 A1orA2 1 340 B A1 A2...

Страница 4: ...pe Rated Output Mold proof Specifications are subject to change without notice 1 Mounting plate 3 Timer Real time dual ON OFF 7 hour OFF 2 Remote controller 3 3 Battery 2 pcs 3 4 Remote controller hol...

Страница 5: ...ol Auto angle selection Auto swing mode Manual mode INDOOR UNIT Sensing the room temperature Room temperature sensor thermistor Time delay safety control Restarting is inhibited for approximately 3 mi...

Страница 6: ...n status memorized 3 4 minutes is protective time for compressor Attention Because of Auto recovery function if shutting off the power supply during operation the unit may restart irrespective your in...

Страница 7: ...void this alternative signal model B can be selected by the following Ex factory setting is mode A Remote controller side Have J1 on the PC board short circuited by soldering Indoor unit side Cut R24...

Страница 8: ...r OFF Off Timer once again Sleep Timer Press the SLEEP button until the operating period on the LCD disappears AIRFLOW DIRECTION CONTROL Vertical adjustment When ON OFF switch is pressed the vertical...

Страница 9: ...top refrigerant flow Compressor restarts when room temperature is raised to 0 7 C higher than the designated temperature OPERATION DETAILS ROOM TEMP DESIGNATED TEMP INDOOR FAN ON ON OFF ON ON ON ON OF...

Страница 10: ...for the duration of one minute the compressor stops the operation When indoor units in Room A1 A2 are operating simultaneously even if only the sensor heat excanger of the indoor unit in Room A1 or R...

Страница 11: ...or fan is super low When indoor units in Room A1 A2 are operating simultaneously even if only A1 or A2 room temperature reachs the designated temperature the compressor does not stop The expansion val...

Страница 12: ...re reachs the designated temperature the compressor does not stop The expansion valve of A1 or A2 cycle is closed to regulate refrigerant flow When room temperature gets less than 5 3 C higher than th...

Страница 13: ...FAN 54 OFF 57 10sec OPERATION DETAILS Fan speed control when Auto is selected in fan mode When Auto is selected the fan speed is automatically controlled according to the difference between the room a...

Страница 14: ...ng the operating current ON ON ON OFF OUTDOOR FAN CURRENT I2 OFF I1 Current Compressor A Current Compressor B I1 5 0A 4 3A I2 4 7A 4 0A When operation current of compressor A or compressor B or both e...

Страница 15: ...1 C continuously for 5 minutes c When one indoor unit starts its defrosting operation other indoors unit also starts the operation regardless the conditions being matched that are written above Defros...

Страница 16: ...E CAPILLARY TUBE EXPANSION VALVE STRAINAR ACCUMULATOR COMPRESSOR B REFRIGERANT FLOW OUTDOOR UNIT HEAT EXCHANGER HEAT EXCHANGER 4 WAY VALVE ACCUMULATOR COMPRESSOR A REFRIGERANT PIPING REFRIGERANT PIPIN...

Страница 17: ...ed cable Do not use power supply cord extended or connected in halfway Be sure to put the units to earthing works Be sure to check the insulated resistance more than 1M Warning The combinations of thr...

Страница 18: ...the electric continuity by tester emergency operation check the wiring connection and rare contact check the wiring connection and rare contact high frequency radio high frequency generator and amateu...

Страница 19: ...he TAN PCB main controller Measure the voltage between the connector pins in the back of PCB main controller normal 110V 230V ELECTRIC CHARACTER table 1 Sensor temp room table 2 Sensor temp defrost Se...

Страница 20: ...ed hock 7 Draw out the whole control box assembly for this side How to detach PCB main controller 8 Pull out connector of sensors room heat exchanger 9 Pull out connector of PCB receiver display 10 Pu...

Страница 21: ...20 TROUBLESHOOTING GUIDE BLOCK DIAGRAM TAN3 A70EW...

Страница 22: ...21 TROUBLESHOOTING GUIDE BLOCK DIAGRAM TAG3 A70EW...

Страница 23: ...0 CAPACITOR 30 400 B W GR GR COMPRESSOR COMPRESSOR R B B S W R V C U OHR W BR GR S W R C T CAPACITOR 4 0 500 BR DEF T DEF T A2 A1 EXP V EXP V TRANSFORMER BL BL R R P C BOARD W W TERMINAL BLOCK W W B B...

Страница 24: ...le shooting compressor YES After repair fill up prescribed gas attention high temp Change OHR 1 2 3 NO YES NO BLACK RED WHITE CHECK CONNECTION BETWEEN WHITE BLACK INNER PROTECTOR TAG fan rotate during...

Страница 25: ...e remaining refrigerant first and then evacuate the unit completely with vacuum pump and finally apply rated volume charging of refrigerant Charging of refrigerant should be done by cooling operation...

Страница 26: ...3 5 MPa A AIR TEMPERATURE OUTDOOR HUMIDITY60 CURRENT TEMPERATURE BLOW OUT SERVICE PORT PRESSURE 5 10 15 20 2 5 3 0 3 5 43 44 45 46 47 48 49 6 0 6 4 6 8 6 2 6 6 AIR TEMPERATURE INDOOR 20 ROOM A1 or A2...

Страница 27: ...38 SENSOR ROOM TEMPERATURE THERMISTOR RESISTANCE CHART TAN SENSOR ROOM TEMPERATURE B CONSTANT 4200 STANDARD TEMPERATURE 25 0 STANDARD RESISTANCE 23k...

Страница 28: ...39 THERMISTOR RESISTANCE CHART TAN SENSOR ROOM TEMPERATURE B CONSTANT 4200 STANDARD TEMPERATURE 25 0 STANDARD RESISTANCE 23k...

Страница 29: ...40 SENSOR HEAT EXCHANGER TEMPERATURE THERMISTOR RESISTANCE CHART TAN SENSOR HEAT EXCHANGER TEMPERATURE B CONSTANT 3700 STANDARD TEMPERATURE 25 0 STANDARD RESISTANCE 10k...

Страница 30: ...41 THERMISTOR RESISTANCE CHART TAN SENSOR HEAT EXCHANGER TEMPERATURE B CONSTANT 3700 STANDARD TEMPERATURE 25 0 STANDARD RESISTANCE 10k...

Страница 31: ...0 67 14 0 16 1 2 77 25 0 121 9 0 70 15 0 15 4 2 83 24 0 114 8 0 74 16 0 14 7 2 88 23 0 108 2 0 78 17 0 14 1 2 93 22 0 102 0 0 82 18 0 13 5 2 99 21 0 96 2 0 86 19 0 12 9 3 04 20 0 90 8 0 90 20 0 12 4 3...

Страница 32: ...0 0 9 4 77 56 0 3 1 4 33 96 0 0 9 4 78 57 0 3 0 4 35 97 0 0 9 4 79 58 0 2 9 4 37 98 0 0 9 4 79 59 0 2 8 4 38 99 0 0 8 4 80 60 0 2 7 4 40 100 0 0 8 4 80 61 0 2 6 4 42 101 0 0 8 4 81 62 0 2 5 4 44 102...

Страница 33: ...TERMINAL BLOCK TO OUTDOOR UNIT 1 2 3 1 2 3 1 2 3 4 WHITE RED BLACK WHITE RED GREEN YELLOW CN4 CN3 TAB1 L1 C2 PC3B C1 ZE1 CF1 D1 PC1B PC2A R1 C29 R3 D2 250V T3 15A PC2B PC1A PC3A IC1 BLUE BLUE RED RED...

Страница 34: ...51 ELECTRIC CIRCUIT DIAGRAM TAG3 A70EW...

Страница 35: ...52 TAN3 A70EW EXPLODED VIEW INDOOR UNIT 19 17 18 24 15 13 11 6 2 3 1 12 16 4 21 10 9 20 23 22 25 14 7 5 8...

Страница 36: ...3 TAG3 A70EW EXPLODED VIEW OUTDOOR UNIT 23 19 22 21 20 18 17 24 43 10 36 16 16 31 31 13 14 12 30 3 16 16 9 7 8 1 2 6 5 4 25 26 27 15 41 40 accessories 3 3 3 3 3 39 42 38 37 28 32 34 33 35 44 45 11 3 2...

Страница 37: ...0 0 2 0 0 8 3 0 C R 2 1 D I L G N I R I W 1 0 2 4 5 1 2 0 2 C R 3 1 N A F R O T O M 0 0 9 3 0 2 L 0 0 2 7 0 2 L 0 0 2 2 1 2 L 4 1 N A F L A I T N E G N A T 0 0 2 0 0 1 K 0 0 5 2 0 1 K 5 1 Y S S A G N...

Страница 38: ...S E V L A V 0 0 9 5 0 4 K 3 2 e l c y c 1 A 4 1 E C I V R E S E V L A V 0 0 7 5 0 4 K 4 2 Y S S A L E N A P E L F F A B 0 2 4 6 1 0 0 2 5 2 L A I L E T A M F O O R P D N U O S 0 3 8 6 1 0 0 2 6 2 L A...

Страница 39: ...ISSUED JUL 2004 RA 23 1...

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