Service Manual TAN-TAG
Contents
1. B CONSTANT TREC CCLRC la 3700 STANDARD TEMPERATURE 25 0 C STANDARD RESISTANCE 10k Q T C R kQ Voltage V T C R kQ Voltage V 40 0 5 5 3 92 80 0 1 4 4 66 41 0 5 3 3 95 81 0 1 4 4 67 42 0 5 1 3 98 82 0 1 4 4 68 43 0 4 9 4 01 83 0 1 3 4 69 44 0 4 8 4 04 84 0 1 3 4 70 45 0 4 6 4 07 85 0 1 3 4 71 46 0 4 4 4 10 86 0 1 2 4 7 1 47 0 4 3 4 12 87 0 1 2 4 72 48 0 4 1 4 15 88 0 11 4 73 49 0 4 0 4 17 89 0 1 1 4 74 50 0 3 8 4 20 90 0 1 1 4 74 51 0 3 7 4 22 91 0 dcl 4 75 52 0 3 6 4 24 92 0 1 0 4 76 53 0 3 4 4 27 93 0 1 0 4 76 54 0 3 3 4 29 94 0 1 0 4 77 55 0 3 2 4 31 95 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 40 100 0 0 8 4 80 61 0 2 6 4 42 101 0 0 8 4 81 62 0 2 5 44 102 0 0 8 4 81 63 0 2 5 45 103 0 0 8 4 82 64 0 2 4 7 104 0 0 7 4 82 65 0 23 48 105 0 0 7 4 83 66 0 2 2 4 50 106 0 0 7 4 83 67 0 2 2 4 51 107 0 0 7 4 83 68 0 2 1 4 53 108 0 0 7 4 84 69 0 2 0 4 54 109 0 0 7 4 84 70 0 2 0 4 55 110 0 0 6 4 85 71 0 1 9 4 57 111 0 0 6 4 85 72 0 1 8 4 58 112 0 0 6 4 85 73 0 1 8 4 59 113 0 0 6 4 86 74 0 1 7 4 60 114 0 0 6 4 86 75 0 1 7 4 61 115 0 0 6 4 86 76 0 1 6 4 62 116 0 0 5 4 87 77 0 1 6 4 63 117 0 0 5 4 87 78 0 1 5 4 64 118 0 0 5 4 87 79 0 1 5 4 65 12. us ui Z es r lt O HE 200 gt e c3 Jun Lia Ju ISLS nS S SL ry LI LL 7 b fi EH e oju ees Jur Jac pu i ea CL ex lex ex ex exile ex ed es ed 55 z lt lt 28 8 2 2 lt lt lt 40 THERMISTOR RESISTANCE CHART TAG SENSOR HEAT EXCHANGER TEMPERATURE B CONSTANT enmm nnm mI STANDARD TEMPERATURE STANDARD RESISTANCE Voltage V Voltage V 0 30 1 96 0 32 2 01 0 34 2 07 0 36 2 13 0 38 2 19 0 40 2 25 0 43 2 31 0 45 2 37 0 48 2 43 0 51 2 49 0 54 19 2 54 0 57 18 2 60 0 60 17 2 66 0 63 16 2 72 0 67 16 2 77 0 70 15 2 83 0 74 14 2 88 0 78 14 2 93 0 82 13 2 99 0 86 12 3 04 0 90 12 3 09 0 95 11 3 14 0 99 11 3 19 1 04 10 3 24 1 08 10 3 29 1 43 10 3 33 1 18 3 38 1 23 3 42 1 28 3 47 1 33 3 51 1 39 3 55 1 44 3 59 1 50 3 63 1 1 1 1 1 1 1 1 159 3 67 61 3 71 66 i 3 5 72 3 78 18 3 82 84 3 85 90 3 89 96 3 92 41 THERMISTOR RESISTANCE CHART TAG SENSOR HEAT EXCHANGER TEMPERATURE
3. vA3 dN3L HOS3S WOOH dWAL YOSAS MS VT1NVW 39NVHO 1TOHLNOO H3AnO1 3ONVHO ITOHLNOO 1VNd 1X xr CN WIRING DIAGRAM TROUBLESHOOTING GUIDE TAN A20HW TAN A28HW TAN A32HW B R BL R TRANSFORMER ij MOTOR FAN Ep BR inn 0 RECEIVER z EH abiSPLAY Lp NN SWITCH LH 5 B J SENSOR TEMP ROOM PCB E SENSOR CONTROLLER LB BT TEMP HEAT BR EXCHANGER R M B S MOTOR LOUVER POWER GN SOURCE TERMINAL EARTH BLOCK TERMINAL OUTDOOR UNIT TAG A28HW MOTOR FAN PRESSOR w pd z sU W CAPACITOR D 1 5uF 440VAC 4 WAY VALVE CAPACITOR 25u 370VAC GN w BL BL w 2121010 O BLOCK EARTH TERMINAL INDOOR UNIT TAN INDOOR UNIT TAG OUTDOOR UNIT TAG A20HW CAPACITOR EA TERMINAL 1 2 uF 400VAC BL Rm LOIL I 1 1O COMPRESSOR CAPACITOR 23 UF 400VAC TERMINAL BLOCK l INDOOR UNIT TAG A32HW MOTOR FAN COMPRESSOR CAPACITOR 30uF 400VAC TERMINAL BLOCK EARTH TERMINAL LINDOOR UNIT B BLACK R RED BL BLUE W WHITE BR BROWN Y YELLOW G GREEN 25 TROUBLESHOOTING GUIDE TAN TAG A20HW OVERHEAT PREVENTIVE RELAY OHR
4. J EF A Cu A J 0 30 0 31 0 32 EE Pe i p e n eo a eo ea e on 4 ccn 232 2 224 9 217 9 211 1 15 5 s ojaja sjo ojo o ET C Sp en en en en en s ne Es eum o o ojo o 4 186 180 174 169 6 13 13 een SS E Ts E rs cn 12 lt CT T 0 159 d 39 THERMISTOR RESISTANCE CHART aw m 2 20 1 k LA e us e us uso ui Ga cu i ca un us l 3 e yes t olo Jus es ie Joo fon oo e Og S O j KD ooje F Ir c r gt o e r c cl cala cul He 10 TS Pees SS m Wi Sul k WP i em x lt ap x E 1 lt N Lys r Coca e ee fen ke in Lo jury jez ex ery e o uns lt un o un 2 st ex Jes e ei Is sas fod ks is his Es r en en en e e
5. L liquid side 1 4 G gas side 3 8 G gas side 3 8 Drain hose Inner diameter 14 Length 0 7 Power Cord Length 1 5 Number of core wire core wire 1 mm Dimensions Height 265 Width 795 Net Weight Type SPECIFICATION INDOOR OUTDOOR TAN A28HW Cross flow Fan TAG A28HW Propeller Fan Air Circulation Motor Type Induction 4 pole Induction 6 pole Rated Output 18 20 Heat Exchanger Refrigerant Control Device Plate fin configur 18 1FPI ation forced draft 19 5FPI Capillary Tube Refrigerant R410A 830 29 3 Thermostat Electronic Control Protection Device OLR INNER Timer Real time dual ON OFF 7 hour OFF Air Filter Parts Provided Mold proof Mounting plate Remote controller Battery 2 pcs Remote controller ho Screw cap 2 pcs Drain elbow Specifications are subj ect to change without notice Ider TAN TAG A32EW Cooling Capacity INDOOR TAN A32HW SPECIFICATION OUTDOOR TAG A32HW Heating Capacity Moisture Removal Power source Airflow Method SIDE VIEW TOP VIEW OE UU Air circulation at High Cooling 8 0 Heating 9 7 Electrical Data Input Cooling 1 050 Heating 1 010 Running Current Cooling 4 7 Heating 4 5 Starting Curr
6. YES Any gas leakage After repair fill up prescribed gas NO Firstly cut down power source when the temp of above part of the compressor is below 50 C does the OHR have electric continuity see left fig attention high NO YES temp 8 Change OHR See trouble shooting compressor Phenomenon OHR works D Gas leakage 2 OHR is defective Cause TAN TAG A28HW TAN TAG A32HW INNER PROTECTOR OVERHEAT PREVENTIVE RELAY INNER PROTECTOR TAG fan rotate during cooling NO mode operation Refer to trouble shooting YES Y INNER PROTECTOR Any gas leakage 8 After repair fill up prescribed gas CHECK CONNECTION NO Y YES Any addition of refrigerant Recharge rated weight Excessive refrigerant NO might be charged Firstly cut down power source when the temp of above part of the compressor is below 50 C does the INNER PROTECTOR have electric continuity see left fig Phenomenon INNER PROTECTOR works compressor Excessive refrigerant TAG fan does not rotate Gas leakage Compressor does not operate INNER PROTECTOR is defective 26 PERFORMANCE CURVE DIAGRAM REMARKS FOR GAS PRESSURE CHECK AND CHARGING If you find substantial diffrence in performance compared with PERFORMANCE CURVE
7. ON Timer operation Press the ON OFF switch e Set ON Time Press TIME ADJ button twice Adj ust the time with the button Press the TIME ADJ button twice The setting of ON Time is completed and the present time appears on the LCD Set the ON Timer Press the Timer fixing button ON OFF Timer operation Press the ON OFF switch Setthe OFF Time Press the TIME ADJ button 3 times Adj ust the time with the button Press the TIME ADJ button once The setting of OFF Time is completed and the present time appears on the LCD Setthe OFF Timer Press the Timer fixing button OFF Sleep Timer operation Press the SLEEP button during the operation Set the operating period by pressing the SLEEP button until the period appears on the LCD Timer Cancellation ON OFF Timer Press the Timer fixing button ON On Timer and or 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 louver will move to the adequate positions for each operation automatically Swing of air flow If air flow direction switch is pressed once the vertical louver will move within the range of figures Fixing the flow direction If air flow direction switch is pressed again the vertical louver wi
8. COMPRESSOR check the restarting operation of compressor after passing 3 minute check the resistance of sensor temp heat exchanger see table 1 gt DROP VOLTAGE check proper voltage of power supply and use an exclusive power supply BY DROP VOLTAGE check proper voltage of power supply and use an exclusive power supply gt DEFECTIVE WIRING CONTACTS check by eyes gt EXCESS GAS check the pressure of gas chec performance curve diagram if the scale of the tester swings instantly to zera and does not move back to infinity capacitor for compressor should be replaced NOTE 2 other than described above OVERHEAT PREVENTION RELAY leak of gas or cut off of overheat prevention relay WRONG WIRING CONNECTION check the wiring order CUTTING OFF change PCB main controller COMPRESSOR BREAKDOWN other than described above check the wiring order NO ROTAION check the voltage between 2 and 4 in terminals see fig 5 if the scale of the tester swings instantly to zer and does not move back to infinity capacitor for TAG fan motor should be replaced NOTE 2 TAG FAN MOTOR other than described above gt FILTER IS CHOKED c
9. PLACE OF INSTALLATION COMPRESSOR STOP L COMPRESSOR BREAKDOWN NOT COOL ENOUGH PSHORTAGE OF GAS OPERATION LAMP OFF e PLACE OF INSTALLATION NOISE Y POWER LAMP OFF GE CLOSE NOT DRAIN ENOUGH SHORTAGE OF GAS INSUFFICIENT INSTALLATION Y check the pressure of gas check performance curve diagram check the blockage of air inlet amp air outlet of TAG gt TANGENTIAL FAN check by eyes after power off turn by hands and check noise PIPE check by eyes around the pipes with any obstacles gt LOUVER POSITION level louver position check the pressure of gas check performance curve diagram check the level of TAN DRAINAGE check the drain pipe is stopped up TAN FAN MOTOR if DC5V is achieved between black and brown lead wiring of fan motor while no voltage of pulse between white and black wiring then TAN fan motor should be replaced check the wiring 3 4 in terminal STOP TAN FAN REPEATED gt i OPERATION AND STOP COOL AIR DOSEN T COME OUT OPERATING IN HEATING MODE NOTE 1 If alarmi 38 4 NOTE 2 Measure the resistance by changing the pole of the tester by turns 1 4 Terminal Number on Terminal Block of TAN indoor unit not turning TAG fan WRONG WIRING CONNECTION B SHORT CIRCUIT OF WIRINGS check the voltage between 2
10. TOYOTOMI SERVICE MANUAL ROOM AIR CONDITIONER TAN TAG A20HW TAN TAG A28HW TAN TAG A32HW CONTENTS SPEGIFIGATION 1 FUNC TIONS SERVICE FUNCTION EXPLANATION 9 OPERATION DETAILS a 10 TROUBLESHOOTING GUIDE 19 PERFORMANCE CURVE DIAGRAV 27 THERMISTOR RESISTANCE CHART ELECTRIC CIRCUIT DIAGRAM a EXPLODED VIEW INDOOR UNIT EXPLODED VIEW OUTDOOR UNIT PARTS LIST INDOOR UNIT uu u uu OE PARTS LIST OUTDOOR UNIT TAN TAG A20EW Cooling Capacity SPECIFICATION INDOOR OUTDOOR TAN A20HW TAG A20HW Heating Capacity Moisture Removal Power source Airflow Method SIDE VIEW TOP VIEW WA Air circulation High Input Cooling Heating Cooling 750 Heating 710 Electrical Data Running Current Cooling 3 5 Heating 3 4 Starting Current 18 Piping Connection Port Flare piping L Half Union 1 4 2 way valve 1 4 G Half Union 3 8 L liquid side 1 4 G 3 way valve 3 8 L liquid side 1 4 Pipe Size Flare piping G gas side 3 8 G gas side 3 8 Inner diameter 14 Length 0 7 Length 1 5 Number of core wir
11. COMPRESSOR I EXCESS GAS check the pressure of refrigerant gas check performance curve diagram TAN FAN STOP COMPRESSOR BREAKDOWN other than described above TAG FAN i NOT WARM ENOUGH T SHORTAGE OF GAS check the pressure of refrigerant gas check performance curve diagram OPERATION LAMP OFF PLACE OF INSTALLATION check the blockage of air inlet amp air outlet of TAG Y NOISE TANGENTIAL FAN check by eyes after power off turn by hands and check noise POWER LAMP OFF PIPE check by eyes around the pipes with any obstacles Y FAN REPEATED FAN MOTOR if DC5V is achieved between black and brown portion of lead wiring of fan LOUVER CLOSE OPERATION AND STOP motor while no voltage of pulse between white and black wiring then TAN fan motor should be replaced Y TAG FAN REPEATED ___ UNDER POWER SAVE MODE NOTHING ABNORMAL STOP OPERATION AND STOP Y REPEATED HEATING AND COOLING 4 WAY VALVE WITH COIL OFF gt WRONG WIRING CONNECTION check the wiring of and 4 in terminal NOTE 1 If alarm 4 NOTE 2 Measure the resistance by changing the pole of the tester by turns 1 4 Terminal Number on Terminal Block of TAN indoor unit 21 not turning TAG fan appears 15 sec after main power on PCB MAIN CONTROLLER is defective TROUBLESHOOTING GUIDE CHECK A FOLLOWING STEPS fig 1 Resistance of transformer
12. 2 and 4 in terminal Normal 207V 253V ine operation in dry amp cooling mode attention electric shock Check the voltage between 2 and 3 in terminal Normal OV tester voltage ELECTRIC CHARACTER table 1 Sensor temp heat exchanger Resistance kO table 2 Sensor temp room table 3 Louver motor Common terminal __ lower part Each terminal Resistance kQ 19 d 360 3900 15 37 Between terminals 720 780 0 22 TROUBLESHOOTING GUIDE HOW TO DETACH CONTROL BOX AND MAIN CONTROLLER 6 above fixed hock 5 55 U U of lle 5 How to detach control box assembly 1 Detach wiring cover and connecting cables 2 Pull out connectors of TAN fan motor 2 places 3 Pull out connector of louver motor 4 Detach sensors room heat exchanger and an earthing screw 3 places 5 Detach a screw for PCB casing 6 Shift control box assembly below and detach above fixed ho
13. and 3 in terminal see fig 6 50 appears 15 sec after main power on PCB MAIN CONTROLLER is defective TROUBLESHOOTING GUIDE HEATING OPERATION NOTE 1 POWER SUPPLY check the plug inserted into the outlet and the power supply REMOTE CONTROLLER POWER TIMER OPERATION gt REMOTE CONTROLLER if the battery is dead or failure in remote controller ONI green yellow green change to new one I FUSE 2 0A check the fuse by eyes or cheak the electric continuity by tester OFF OFF OFF Pee NO 1 TRANSFORMER check the resistance by tester see fig 1 3 POWER LAMP GREEN ON 1 L PCB RECEIVER amp DISPLAY other than described above Sedhow to operate YES FLASHING ON ON emergency operation test operation 4 39 L SENSOR TEMP HEAT
14. as shown in the following pages recharge the refrigerant In order to avoid excessive charging purge all the 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 because the pressure at service valve will be too high at heating cycle then the heating performance characteristics must be checked by restarting of heating operation Liquid side Piping size Gas side Max tube length Max height difference 27 PERFORMANCE CURVE DIAGRAM TAN TAG A20HW COOLING A 5 5 45E 4 0F CURRENT C 30 TEMPERATURE BLOWOUT MPa 1 4 1 2 SERVICE PORT PRESSURE z 0 8 E 0 6 04 z E elsi i JEJ 20 25 30 35 C HUMIDITY60 AIR TEMPERATURE INDOOR OUTDOOR HEATING AIR TEMPERATURE INDOOR 20 C CURRENT 55 TEMPERATURE BLOWOUT MPa SERVICE PORT F PRESSURE 2 5 2 0 5 10 15 20 HUMIDITY50 AIR TEMPERATURE OUTDOOR 28 PERFORMANCE CURVE DIAGRAM TAN TAG A28HW COOLING CURRENT C 3o TEMPERATURE BLOWOUT MPa 1 4 I 1 2 SERVICE P
15. i ang YOLOW 8 agy HOOQNI MOTISA WOO HOISINH3HL HOISIWH3HL NMOHA JHM 47 ELECTRIC CIRCUIT DIAGRAM TAN TAG A28HW TAN TAG A32HW 1061402 ALOWSY SS414HIM H3AI303H 9 1vd dO e AV1dSIQ 9 H3 TIOHLNOO NIVIN HOd A0Vv ld MOVi8 HOLIOVdVO HOLOW HOLOW HH i Hood LNO NMOHS xovig L GION31OS JATVA AVM v Fi ama 15 gng 4 per HOSS3HdWOO HAWHOISNVHL mur ama qatu Sv qaq 1 3LIHA HOLIOVdVO HOSSJHdWOD MS NNN ns _ INN uooaN LINN HOOGLNO 211 END IND 318V9 DNILOANNOD ALIHM 40018 p TVNINH3L SNO r ROTISMNSHUO GT NAOda y dau ET Lova 12 x0v18 dzOdl IOd eNO LF sp ALIHM 3LIHM LOI d RN AVL LLNO quoo OV 311HM ZNO 919 zo 31IHM 3LIHW 9NO 8NO Muy 6NO 1 n w to ang YOLOW 8 agy HOOQNI MOTISA HOLSIN
16. 19 0 0 5 4 88 80 0 1 4 4 66 120 0 0 5 4 88 42 ELECTRIC CIRCUIT DIAGRAM TAN TAG A20HW 1061402 ALOWSY SS414HIM H3AI303H 9 1vd dO e AV1dSIQ 9 H3 TIOHLNOO NIVIN HOd HOLIOVdVO HOLOW HO1OW ALIHM iT HOOQ LNO NMOHS ES GION310S ATVA AVM b ri ama 111 ama 11 xvi c iL dOSS ddAOO HHO HJWHOHSNVHL SONIS ania MOVTA HT 3LIHM HOLIOVdVO HOSS ddAOO LA ns _ Qin LINN HOOGLNO eji z L END IND ONILOANNOO 3LIHM 9 9v 18 3LIHW TVNINH3L e L__ Je 1 zova e NO ama MOTISA NSSUO nas 9 NMOHB p NMOHG f yovga i eNO LF b 0 3UHM SIIHM LOI d RN AVL LLNO quoo OV ALIHM ZNO 919 zo 31IHM 3LIHW 9NO 8NO 6NO n w to s e
17. EXCHANGER check the resistance by tester see table 1 Y KG FLASHING OFF OFF SENSOR TEMP ROOM check the resistance by tester see table 2 LOUVER OPEN I MOTOR LOUVER check the resistance between two terminals see fig 2 table 3 Y SETTING TEMPERATURE adj ust proper temperature in remote controller NO OPERATION LAMP GREEN ON gt SENSOR TEMP ROOM check the resistance by tester see table 2 YES L COMPRESSOR check the restarting operation of compressor after passing minutes 1 OFF OFF OFF gt DROP VOLTAGE check proper voltage of power supply and use an exclusive power supply 4 WAY VALVE ON BY DROP VOLTAGE check proper voltage of power supply and use an exclusive power supply DEFECTIVE WIRING CONTACTS check by eyes ON OFF OFF EXCESS GAS check the pressure of refrigerant gas sed performance curve diagram NO P t if the scale of the tester swings instantly to zer and does COMPRESSOR IS WORKING LCAPACITOR COMPRESSOR hot move back to infinity capacitor for compressor should OR be replaced NOTE 2 YES FLASHING FLASHING OFF L COMPRESSOR LOCKING other than described above OVERHEAT PREVENTION RELAY leak of gas or cut off of overheat prevention relay WRONG WIRING CONNECTION check the wiring order FLASHING OFF FLASHING CUTTING OFF CT change PCB main controller 1 TA 7 L COMPRESSOR BREAKDOWN other than descrived above
18. HJHL YOLSINYSHL NMOHS JIIHM MOV Ta RE EZ PREZ RAA RECE 48 EXPLODED VIEW INDOOR UNIT TAN A20HW TAN A28HW accessories 49 EXPLODED VIEW INDOOR UNIT TAN A32HW o o U 50 EXPLODED VIEW OUTDOOR UNIT TAG A20HW _ 51 EXPLODED VIEW OUTDOOR UNIT TAG A28HW 52 TAG A32HW 9 Ca ER ji 53 RA 20 1 ISSUED JUL 2004 Printed in Japan
19. NO NO ROTATION or s TAG FAN ROTATING SLOW ROTATION T LWRONG WIRING CONNECTION check the wiring order NO ROTATION YES PCB MAIN CONTROLLER check the voltage between 2 and 4 in terminal see fig 5 if the scale of the tester swings instantly to zera and does gt CAPACITOR TAG FAN MOTOR not move back to infinity capacitor for TAG fan motor should be replaced NOTE 2 TAN FAN MOTOR other than described above 2 TURN ANDE E COMPRESSOR BREAKDOWN check the current at wiring 1 by clamp meter see fig 4 Y PCB MAIN CONTROLLER check the voltage between 2 and 4 in terminals see fig 5 TAN FAN STARTING NO gt SENSOR TEMP HEAT EXCHANGER check the resistance by tester see table 1 HOT START MODE p TAN FAN MOTOR check the voltage between blue and yellow in connector see fig 3 YES L CAPACITOR TAN FAN MOTOR after starts Banie if Hay rotate properly by hands Y capacitor should be replace OPERATING IN HEATING MODE NE NOT WARM ENOUGH FILTER IS CHOKED check by eyes and clean it outdoor unit stops before a set up temp gt SENSOR TEMP ROOM check the resistance by tester see table 2 Maid ON OFF OFF Y SENSOR TEMP HEAT EXHANGER check the resistance by tester see table 1 REMOTE CONTROLLER OFF PLACE OF INSTALLATION check the blockage of air outlet of TAN Y PLACE OF INSTALLATION check the blockage of air inlet 8 air outlet of TAG
20. ODE 4 1 gt HEATING MODE ACCUMULATOR 18 TROUBLESHOOTING GUIDE FOR YOUR SAFETY USE TAN indoor unit TAG outdoor unit For the safety and proper use and handling of the product please read and follow the instructions carefully The meaning of the marks below are as follows Prohibited Strict enforcement e Connect the earthing cable High Temperatare A Danger Be sure to off the plug when servicing It may cause the risk of electric shock leakage of refrigerant occur in the installation ventilate a room If the leaked refrigerant is exposed fire poisonous gas may be generated Never remodel appliance Use designated parts or accessories to avoid accidents Q In case of gas leakage not only refill the required amount of the refrigerant gas but also find out the gas leakage point and mend it If the service work has to be suspended before mending the leakage points be sure to collect the refrigerant gas in the outdoor unit by using pump then fasten the service ports to avoid any further leakage Poisonous gas may be generated when the leaked refrigerant is exposed to fire Clean the pins of the plug and insert the plug completely into the outlet Be sure to change the cable if it is damaged Do not use damaged cable Do not use power supply cord extended or connected in halfway AA Warning o Be sure to put the unit
21. ORT PRESSURE z 0 8 0 6 mE elsi aa i 26 20 25 30 35 C HUMIDITY60 AIR TEMPERATURE INDOOR OUTDOOR HEATING AIR TEMPERATURE INDOOR 20 C 45 E CURRENT C 44 TEMPERATURE F BLOWOUT MPa SERVICE PORT F PRESSURE 2 5 2 0 5 10 15 20 25 HUMIDITY50 AIR TEMPERATURE OUTDOOR 29 PERFORMANCE CURVE DIAGRAM TAN TAG A32HW COOLING ec 55 E 5E CURRENT TEMPERATURE E BLOWOUT MPa 14 1 2 SERVICE PORT E PRESSURE 5 20 25 30 35 HUMIDITY60 AIR TEMPERATURE INDOOR OUTDOOR HEATING AIR TEMPERATURE INDOOR 20 C CURRENT TEMPERATURE BLOWOUT sE 40 E 35 MPa SERVICE PORT F PRESSURE 2 5 2 0 5 10 15 20 HUMIDITY50 AIR TEMPERATURE OUTDOOR 30 THERMISTOR RESISTANCE CHART TAN SENSOR ROOM TEMPERATURE B COMSTANT 4200 STANDARD TEMPERATURE 25 0 STANDARD RESISTANCE 23k Q Pl hd ha E l eo en ha no 408 0 Dac el CJ Car ee a a a a a ra rH ralha rara
22. Transformer resistance primary red red fig 2 Resistance of louver motor about 800 O tester resistance secondary blue primary secondary blue blue Check the power source The transformer is located in red inner part in the control box Measure taking off the connectors primary amp secondary about 3 Q resistance common terminal terminal block Take off the connector and check the resistance between the terminals fig 3J Voltage of RC fan motor AN attention electric shock TAN fan motor connector tester voltage Normal 110V 230V Check the TAN PCB main controller Measure the voltage between the connector pins in the back of PCB main controller fig 4 Current of compressor operating in heating mode table 4 Current of wiring in terminal man about TAN TAG A20G W TAN TAG A28G W TAN TAG A32G W attention electric shock capacitor wiring in teminal block Check the current of wiring in terminal 1 and if the current stays at the level above shown compressor is defective heating operation only terminal block fig 5 Voltage of PCB main controller attention electric shock Check the voltage between
23. ck 7 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 amp display 10 Pull out PCB main controller from control box assembly for this side 11 Pull out terminal with pushing locking lever simultaneously 12 Pull out terminal 13 Pull out connector from terminal block to PCB main controller 14 Pull out connectors of transformer 2 places 22 TROUBLESHOOTING GUIDE BLOCK DIAGRAM 3NI183MOd OV T YOLOW NVd HOOQ LNO GION31OS 3ATVA v YOSSAYdNWOD HALLIWSNVHL 10HLNO9 3LOWSY SS3T3HIM H3WHOd ualJiL03H SNVHL od 39NVHO 8 V H3TIOHLNOO SLOWSY 3DVHO 140 AH AO9 H OLNV HOLOW NV4 HOOGNI 19539 LEDI AV1dSIG N 9 HJAI303H 80d 35109 HOLOW cd zeoa t gd v 47 AVHHV SR HOLSISNYHL 6 46 yr a SPE 4 1 HOLOW H3AnO1 320718 TVNIWd 1 Nl HOSS OOHd OHOIW Odd
24. d temperature the intermittent operation above 2 starts 5 When operating in 2 above if the room temperature becomes 2 higher than the designated the operation 1 above starts DESIGNATED TEMP 0 7 INDOOR FAN COMPRESSOR super low ON super low ON super low ON super low super low OFF ON ON OFF 10min 10min _ Smin 3min ci When room temperature is raised to 6C higher than the designated temperature compressor stops OPERATION DETAILS HEATING MODE OPERATION When room temperature gets less than 5 3C higher than the designated temperature compressor turns Atthe start of heating operation if the room temperature is less than 18C additional 1 C is set to the temperature designated by the remote controller Canceled when the compressor first stops Hot Start Function To prevent the unpleasant cold air to flow the air flow speed is determined as shown below according to the temperature of the indoor heat exchanger Temperature indoor heat exchanger ger sec 23C INDOOR FAN Designated by remote controller Room Temperature 07C Designated 6C Temperature Max Max 4 min 4 min Super INDOOR FAN Stop low Low Designated by remote controller COMPRESSOR OFF In maximum 4 minutes
25. e core wire 1 mm Height 265 Dimensions Width 795 Drain hose Power Cord Net Weight Type SPECIFICATION INDOOR OUTDOOR TAN A20HW Cross flow Fan TAG A20HW Propeller Fan Air Circulation Motor Type Induction 4 pole Induction 6 pole Rated Output 18 15 Heat Exchanger Refrigerant Control Device Plate fin configur 18 1FPI ation forced draft 19 5 FPI Capillary Tube Refrigerant R410A 700 24 7 Thermostat Electronic Control Protection Device OHR Timer Real time dual ON OFF 7 hour OFF Air Filter Parts Provided Mold proof Mounting plate Remote controller Battery 2 pcs Remote controller ho Screw cap 2 pcs Drain elbow Specifications are subj ect to change without notice Ider SPECIFICATION TAN TAG A28EW INDOOR OUTDOOR TAN A28HW TAG A28HW Cooling Capacity Heating Capacity Moisture Removal Power source TOP VIEW SIDE VIEW Airflow Method U Cooling Air circulation at High Heati eating Cooling 820 Heating 840 Electrical Data Cooling 3 6 Running Current Heating 3 7 22 _ Input Starting Current Piping Connection Port Flare piping Pipe Size Flare piping L Half Union 1 4 2 way valve 1 4 Half Union 3 8 L liquid side 1 4 G 3 way valve 3 8
26. ent 27 Piping Connection Port Flare piping L Half Union 1 4 2 way valve 1 4 G Half Union 3 8 G 3 way valve 3 8 Pipe Size Flare piping L liquid side 1 4 G gas side 3 8 L liquid side 1 4 G gas side 3 8 Drain hose Inner diameter 14 Length 0 7 Power Cord Length 1 5 Number of core wire 2 core wire 1 mm Dimensions Height 265 Width 795 Depth 182 Net Weight 8 3 Type SPECIFICATION INDOOR OUTDOOR TAN A32HW Cross flow Fan TAG A32HW Propeller Fan Air Circulation Motor Type Induction 4 pole Induction 6 pole Rated Output 22 20 Heat Exchanger Refrigerant Control Device Plate fin configur 19 5FPI ation forced draft 19 5 FPI Capillary Tube Refrigerant R410A 1 100 38 8 Thermostat Electronic Control Protection Device OLR INNER Timer Real time dual ON OFF 7 hour OFF Air Filter Parts Provided Mold proof Mounting plate Remote controller Battery 2 pcs Remote controller ho Screw cap 2 pcs Drain elbow Specifications are subj ect to change without notice Ider FUNCTIONS REMOTE CONTROL TRANSMITTER INDOOR UNIT m Sensing the roo
27. heck by eyes and clean it SENSOR TEMP ROOM check the resistance by tester see table 2 SENSOR TEMP HEAT EXCHANGER check the resistance by tester see table 1 check the blockage of air outlet of TAN check the blockage of air inlet amp air outlet of TAG EXCESS GAS check the pressure of gas check performance curve diagram other than described above NOTE 1 REMOTE CONTROLLER POWER TIMER OPERATION ON green yellow green s v NO 3 POWER LAMP GREEN O RECEIVER 8 DISPLAY FLASHING ON ON 4 YES as 8 SENSOR TEMP FLASHING OFF OFF gt SENSOR TEMP ROOM LOUVER TOPENT 180 T SIER YES YES Y N gt PCB MAIN CONTROLLER TAN FAN ROTATING gt 5 TEMPERATURE YES YES NO 3 OPERATION LAMP GREEN on gt PREVENTION FOR FREEZING YES YES OFF OFF OFF 1 NO COMPRESSOR IS WORKING ON OFF OFF YES YES CAPACITOR COMPRESSOR FLASHING FLASHING OFF j gt COMPRESSOR LOCKING L FLASHING OFF FLASHING TAG FAN ROTATING NO ROTATION or WRONG WIRING CONNECTION SLOW ROTATION YES YES PCB MAIN CONTROLLER OPERATING IN SAV OEE I CAPACITOR TAG FAN MOTOR OPERATING IN COOLING MODE COOL ENOUGH outdoor unit stops before YES set up temp Y ON OFF OFF REMOTE CONTROLLER OFF OF INSTALLATION 1 I
28. ition 3 or b accumulated time for the stop of outdoor fan which is for the protection of compressor from excess current or for the prevention of overheating of indoor heat exchanger exceeds 90 minutes after the start of heating operation or after the completion of previous defrosting operation Condition b Current Defrosting starts Defrosting stops 3 6A 1 4min 2 No j udge current Compressor OFF ON OFF Indoor fan super low OFF Hot start Operation Outdoor fan OFF 4way valve OFF 55sec 55sec 1min AP Max 9min 3 ale 1min gt Condition a Condition b 1 TAN TAG A20GW _ 3 6A or 4 1A once in four defrosting operation 3 2A TAN TAG A28GW 3 2 or 5 1A once in four defrosting operation 3 3A TAN TAG A32GW _ or 7 0A once in four defrosting operation 5 0A Condition a Condition b 2 TAN TAG A20GW 4min 2min TAN TAG A28GW 4min 2min TAN TAG A32GW 4min 2min 3 Defrosting operation is called off after 9 minutes at maximum even if the current value does not reach to the above 17 OPERATION DETAILS REFRIGERATION CYCLE DIAGRAM INDOOR UNIT OUTDOOR UNIT REFRIGERANT PIPING ad STRAINER CAPILLARY TUBE 5 Bae 1 CAPILLARY TUBE 1 HEAT EXCHANGER REFRIGERANT PIPING pk bk je 4 WAY VALVE 3 WAY VALVE REFRIGERANT FLOW COOLING M
29. ll be fixed and that position is memorized From the next operation the louver will be set at previous position automatically Notes In Swing Mode the louver automatically moves up and down within the certain range as the illustration below There is two different ranges of louver swinging one is of cooling amp dry mode operation and the other is of heating operation During Cooling During Heating Dry Operation Operation Level Approx 10 Level gt degrees Approx 60 degrees Level Level Approx 10 Approx 10 degrees degrees Approx 45 Approx 60 degrees degrees 10 OPERATION DETAILS TIME DELAY SAFETY CONTROL FUNCTION FOR PROTECTION OF COMPRESSOR Compressor will not restart in any operation modes for 3 minutes after its stop Compressor does not stop during the first 3 minutes of its operation even if the room temperature reaches to the designated temperature except changing setting temperature COOLING MODE OPERATION Compressor stops when the room temperature is cooled down to the designated temperature Compressor restarts when room temperature is raised to 0 7C higher than the designated temperature DESIGNATED TEMP INDOOR FAN COMPRESSOR ROOM TEMP ON ON OFF ON OFF 11 ON OFF ON al ON OFF OPERATION DETAILS Fan speed control when Au
30. m temperature Room temperature sensor thermistor ON OFF Time delay safety control Operation mode selection Restarting is inhibited for approximately AUTOMATIC SNUBS COOL DRY t Indoor fan speed control HEAT High Med Low CIRCULATER Air flow selection fiow eelaction m Operation indication lamps LED 38 GREEN Light up in operation 4 YELLOW Timer in operation MEDIUM GREEN Outdoor unit operate LOW Dry operation mode Room temperature setting Intermittent operation of fan at low speed 16 C 30 C m Room temperature control m nan Timer operation selection Maintains the room temperature in CONTINUOUS operation accordance with the setting temperature OFF ON Deice defrost control Sleep Deicing operation automatically starts when the heating efficiency is declined by Timer time setting the ice formed in the outdoor unit Operation stops at the set time OFF timer After deicing operation heating operation automatically starts with Hot start Operation starts at the set time ON timer function 0 5 7 0hours Sleep timer Air flow direction control Auto angle selection Auto swing mode Manual mode FUNCTIONS OUTDOOR UNIT Hot start control heating The indoor fan stops until the evaporato
31. oling operation starts with the air flow speed HI If the test operation switch is pressed more than 10 seconds it doesn t work After 30 minutes test operation ends automatically HOW TO RELEASE EMERGENCY AND TEST OPERATION In case of releasing during those operations you can either push emergency operation switch once more or apply operation using remote control You will hear a beep sound and emergency test operation is released If you release the operation by remote control operation will continue as setting of the remote control automatically INTERFERENCE PREVENTION OF SIGNALS FROM THE REMOTE CONTROLLERS When two indoor units used in the same room interference of the signals may happen To avoid this alternative signal model B can be selected by the following Ex factory setting is mode A J1 e Remote controller side J1 onthe PC board short circuited by soldering Indoor unit side Cut R7 on the PC board 7K 9K 12Kmodel OO Each Operations Details Soldering lt Remote control unit gt lt Indoor unit gt Ex factory setting Mode A Ex factory setting Mode A Receive Not receive Have J 1 on the PC board short circuited by soldering Mode B Not receive Receive OPERATION DETAILS
32. operation 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 intention when turning on the power supply next time If the unit is not to be used for a long time shut off the power supply after terminating all operation with remote controller 1 OHR Over Heat Relay TAN TAG A20GW INNER PROTECTOR TAN TAG A28GW TAN TAG A32GW SERVICE FUNCTION EXPLANATION EMERGENCY AND TEST OPERATION Emergency Operation e Use this operation only when the remote controller is out of order or lost When the emergency operation switch is pressed beep starts once which means the start of this operation this operation the system automatically selects the operation modes cooling or heating when available according to the room temperature as follows um murum ABOVE 23C COOLING CONTINUOUS AUTOMATIC BELOW 23C HEATING CONTINUOUS AUTOMATIC is not possible to operate in dry mode Test Operation Test operation switch is same as emergency one Twice beep Use this operation only for testing the performance of the machine in the condition where the room temperature is less than 16 C Continue to press the test operation switch for more than 5 seconds After you hear twice beep release your finger from the switch the co
33. r piping temperature will be reached Overload protection Anti freezing control for the evaporator Compressor will be stopped when the evapolator s piping temperature is below 2 C for one minute Compressor will be restarted when the evaporator s piping temperature is above 290 Compressor overload protector When overheating of the compressor is detected protector 1 stops the Airflow direction control operation of the When ON OFF BUTTON is pressed the When high current supplied to the vertical louver will move to the adequate compressor is detected the main positions for each operation automatically controller stops the operaiton of outdoor Manual operation unit including compressor The louver starts vertical swing with a push of the LOUVER BUTTON Push the LOUVER BUTTON once again to stop 7 7 mi operation AOR the louver at the desired position while Once the compressor is activated it does not stop for 3 minutes In case of termination of this operation swinging A f push the ON OFF button on remote uto recovery function Controller If there is any power failure during operation operation status before power failure is memorized 3 4 minutes after power recovery the unit restarts automatically with previous
34. s to earthing works Be sure to check the insulated resistance more than 1M The combinations of three LED indicators ON Flashing OFF provide the self diagnosis information as most of them shown in the trouble shooting guide Note1 Discharge electricity of the capacitor by making short circuit firstly Then check the capacitor by tester Be sure to set up the tester for the measurement of bigger resistance 19 TROUBLESHOOTING GUIDE DRY amp COOLING OPERATION gt POWER SUPPLY check the plug inserted into the outlet and the power supply REMOTE CONTROL if the battery is dead or failure in remote controller change to new one FUSE 2 0A check the fuse by eyes or cheak the electric continuity by tester TRANSFORMER check the resistance by tester see fig 1 other than described above how to operate emergency operation test operation HEAT EXCHANGER check the resistance by tester see table 1 check the resistance by tester see table 2 check the resistance between two terminals see fig 2 table 3 gt MOTOR TAN FAN check the voltage between blue s connection and yellow one see fig 3 other than described above adj ust proper temperature in remote controller SENSOR TEMP ROOM check the resistance by tester see table 2
35. the operation proceed to the next steps when the heat exchanger is not warmed up to the reference temperature shown above 14 ON OFF Fan speed control when Auto is selected in fan mode OPERATION DETAILS When Auto is selected the fan speed is automatically controlled according to the difference between the room and designated temp 4PC ROOM TEMP DESIGNATED TEMP 6 ene 3C INDOOR FAN Hi Method of overload control by checking the temperature of heat exchanger indoor T1 T2 OUTDOOR FAN 10sec Super low 0 7C 17 3 7C ON ON ON TAN TAG A20GW TAN TAG A28GW TAN TAG A32GW 15 Method of overload control by checking the operating current 2 OUTDOOR CURRENT OPERATION DETAILS ON OFF ON TAN TAG A20G W TAN TAG A28G W TAN TAG A32G W 16 OFF OPERATION DETAILS DEFROSTING OPERATION Defrosting operation is controlled by room temperature temperature of indoor heat exchanger and timer switch Defrosting operation starts when a 50 minutes pass after the start of heating operation or after the completion of previous defrosting operation and while compressor is running the temperature of indoor heat exchanger falls below room temperature 14 C Cond
36. to is selected in fan mode When Auto is selected the fan speed is automatically controlled according to the difference between the room and designated temperatures ROOM TEMP 3 7C 3C 1 7C 0 7C DESIGNATED TEMP INDOOR FAN Hi Me Lo Me Hi Method of anti freezing control of heat exchanger indoor When the sensor heat exchanger detects the temperature below 2 C for the duration of one minute the compressor stops the operation After that the compressor will automatically resume the operation when the sensor heat exchanger detects the temperature 2 C and above TEMPERATURE INDOOR HEAT EXCHANGER 2 COMPRESSOR OFF 12 OPERATION DETAILS DRY MODE OPERATION 1 When the room temperature is 2 C or more higher than designated temperature compressor and indoor fan operate 2 When the room temperature has been cooled to the temperature 2C higher than the designated the compressor and indoor fan start intermittent operation ON for 10 min and OFF for 6 min by turns The air flow speed of indoor fan is super low 3 When the room temperature is cooled to designated temperature compressor and indoor fan stop The indoor fan restarts at the air flow speed of super low after 3 minutes the compressor stops 4 When the room temperature is raised to 0 7 C higher than the designate
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