Toyotomi TAG3-A70EW Service Manual Download

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CONTENTS

SPECIFICATION .................................................................... 1

FUNCTIONS .......................................................................... 4

SERVICE FUNCTION EXPLANATION .................................. 6

OPERATION DETAILS ........................................................... 7

TROUBLESHOOTING 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 LIST (INDOOR UNIT) ..............................................

PARTS LIST (OUTDOOR UNIT) ..........................................

SERVICE MANUAL

ROOM AIR CONDITIONER

TAN3/TAG3-A70EW

Summary of Contents for TAG3-A70EW

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

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

Page 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...

Page 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...

Page 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...

Page 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...

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

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

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

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

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

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

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