SERVICE MANUAL
Contents
1. Two unit Three unit Four unit 7 18 12412 18418 747412 749412 94949 7 7 7 7 7474949 74949412 7474747 9418 12418 7 7 18 749418 949412 7474749 74749412 749412412 7 7 7 9 74949 7412412 949418 74747412 747412412 9494949 7 7 7 12 7412418 9412412 74747418 7494949 94949412 74747418 6 6 Indoor unit combination for FS4MIF 360AE2 Two unit Three unit Four unit 12418 7 7 18 7 12 12 9 12 18 7 7 7 7 7 7 12 12 7 9 12 18 9 9 12 12 18 18 7 9 12 7 12 18 9 18 18 7 7 7 9 7 7 12 18 7 9 18 18 9 9 12 18 7 9 18 7 18 18 12 12 12 7 7 7 12 7 7 18 18 7 12 12 12 9412412412 9 9 12 12 12 18 7 7 7 18 7 9 9 9 7 12 12 18 9 12 12 18 9 9 18 12 18 18 7 7 9 9 7 9 9 12 9 9 9 9 12 12 12 12 9 12 12 7 7 9 12 7 9 9 18 9 9 9 12 12 12 12 18 7 7 9 18 7 9 12 12 9 9 9 18 6 7 Indoor unit combination for FS5MIF 360AE2 Two Unit Three Unit 18 18 7 7 18 7 18 18 9 12 18 9 18 18 7 9 18 9 9 18 12 12 12 12 18 18 7 12 18 9 12 12 12 12 18 18 18 18 Four Unit 7 7 7 12 7 7 12 18 7 9 12 18 94949412 94124112418 7 7 7 18 7 7 18 18 7 9 18 18 9 9 9 18 12 12 12 12 7 7 9 9 7 9 9 9 7 12 12 12 9 9 12 12 12 12 12 18 7 7 9 12 7 9 9 12 7 12 12 18 9 9 12 18 7 7 9 18 7 9 9 18 7 12 18 18 9 9 18 18 7 7 12 12 7 9 12 12 9 9 9 9 9 12 12 12 Five Unit 7 7 72. 140 8 H o Y e fol D3 BW B1 ay 145 m 6 O e 1 H1 A2 60 A1 22 H2 D1 4 Wiring Diagram FS2MIF 140AE2 FS2MIF 180AE2 202057090161 REACTOR BLUE IPM BOARD i JONS Cow ConpTop OPTIONAL 7 B ig E CNI4 oa LOW HIGH HGH PRESSURE PROTECT gt 2 INDOOR PIPE OUT TEMP GND Fi U R 10 MAIN BOARD AWAY WEATI COMPRESSOR 3 POWER SUPPLY CN1 CN2 ON6 ON5 WEAT2 089 CNB ee VALVE 1 5 CN37 OPTIONAL OUTDOOR AMBIENT T4 TEMPERATURE SENSOR T3 CONDENSER TEMPERATURE SENSOR DISCHARGE SENSOR ELECTRONIC EXPANSIVE VALVE DC FAN FS3MIF 210AE2 FS3MIF 270AE2 202057190192 5 5 BLUE 2 2 INDOOR PIPE E OUT TEMP i 2 OUTDOOR AMBIENT au QNS 14 TEMPERATURE SENSOR en M 128 5 T3 CONDENSER TEMPERATURE SENSOR i 1 0 ons IPM BOARD DISCHARGE SENSOR i ON 4 RY2 i i COM 3 lg CN6
3. VALVE 3 _ E 8 VALVE 2 ELECTRONIC m EXPANSIVE amp VALVE i VALVE 1 co GND 2 i CO MAIN BOARD 5 4 SB SC BLACK LIN CIN 20 1 5 BLUE RED 4 HEATI HEAT 8 W FAN 8 amp B 048 4 i C s E Es i REACTOR vel gaa eee EE U R WO CE CB COMPRESSOR eel ef c TO we OPTIONAL POWER i SUPPLY Y G we Y G 202057190200 OV PRESSURE PROTECT INDOOR P OUT TEMP HIGH PRESSURE PROTECT OUTDOOR AMBIENT TEMPERATURE SENSOR CONDENSER T3 TEMPERATURE SENSOR DISCHARGE SENSOR Ini ma i LON HIGH CN7 CN17 MAIN BOARD VALVE 4 VALVE 3 ELECTRONIC EXPANSIVE VALVE 2 C VALVE VALVE 1 P2 WAY LENS CN9 CNB REACTOR C 1 0 500 PTIONAL FS4MIF 360AE2 i 202057190193 LECTRONIC EXPANSIV
4. i y GAS VALVE C d Accumulator gt DT5 Disch PEE ischarge temp sensor 4 COOLING Compressor 4 HEATING 10 4 3 Refrigeration circuit drawing of inverter 1 drive 4 type INDOOR HEAT EXCHANGE TR EVAPORATOR Baboon temp sensor T2 Evaporator 0 temp sensor middle m i l 4 4 Refrigeration circuit drawing of inverter 1 INDOOR HEAT EXCHANGE EVAPORATOR temp sensor T2 Evaporator 0 temp sensor middle 1 l i OUTDOOR EXV A CAPILIARY A LIQUID VALVE A gt EXV CAPILIARY B LIQUID VALVE B x gt 00000 CHECK VALVE EXV C CAPILIARY C q 00600 LIQUID VALVE C T 4 T3 merce 700907 009007 EXV D CAPILIARY D temp sensor LIQUID VALVE D CAPILIARY TUBE 7009007 T4 Ambient temp sensor CONDENSER T2B A Evaporator GAS VALVE A temp sensor outlet u lt cas VALVEB 1288 EK 12 I i o Y _ 4 WAY VALVE GAS VALVE C Accumulator o gt EY ion x Bi eoe COOLING GAS VALVE D a D _ 075 Discharge lt HEATING Low pressure temp sensor switch Compressor drive 5 type OUTDOOR EXV A CAPILIARY A LIQUID VALVE A ENT 00000 LIQUID VAL
5. X 6 IPM module protection X 7 Open or short circuit of T3 or T4 temperature sensor or ie dg de Outdoor unit EEPROM parameter error 8 Voltage protection 10 Inverter compressor drive protection X 11 Indoor fan Speed has been out of control 12 Mode conflict X O O light X off at 5Hz O flash at 0 5Hz 32 9 2 Outdoor unit error code explanation Display LED STATUS EO Outdoor EEPROM malfunction E2 Indoor outdoor units communication error E3 Communication malfunction between IPM board and outdoor main board E4 Open or short circuit of outdoor unit temperature sensor E5 Voltage protection E6 PFC module protection For FS4MIF 280AE2 F SAMIF 360AE2 F S5MIF 360AE2 E8 Outdoor fan speed has been out of control F1 No A Indoor unit coil outlet temperature sensor or connector of sensor is defective F2 No B Indoor unit coil outlet temperature sensor or connector of sensor is defective F3 No C Indoor unit coil outlet temperature sensor or connector of sensor is defective F4 No D Indoor unit coil outlet temperature sensor or connector of sensor is defective F5 No E Indoor unit coil outlet temperature sensor or connector of sensor is defective P4 High pressure protection For FS4MIF 280AE2 FS4MIF 360AE2 FS5MIF 360AE2 P2 Low pressure protection For FS4MIF 280AE2 FSAMIF 360AE2 FS5MIF 360AE2 P3 Current protection of compressor
6. White Blue Yellow Black O O 5 O N Index2 1 Indoor AC fan motor Power on and set the unit running in fan mode at high fan speed After running for 15 seconds measure the voltage of pin1 and pin2 If the value of the voltage is less than 100V 208 240V power supply or 50V 115V power supply the PCB must have problems and need to be replaced 39 Input Terminal Red Red 1 lt Black 2 White White 3 od VVN Black 2 Indoor DC fan motor control chip is inside fan motor Power on and when the unit is in standby measure the voltage of pin1 pin3 pin4 pin3 in fan motor connector If the value of the voltage is not in the range showing in below table the PCB must have problems and need to be replaced For other models For console 5 4 6 QNSE 1 2 DC motor voltage input and output For split type NO Color Signal Voltage 1 Red Vs Vm 280V 380V 2 es 3 Black GND OV 4 White Vcc 14 17 5V 5 Yellow Vsp 0 5 6V 6 Blue FG 14 17 5V 40 For Duct amp Four way cassette compact NO Color S
7. Model 1x2 14k 1 2 18 1x3 27K 1x3 21K Compressor DA130M1C 31FZ DA15081C 20FZ DA250S2C 30MT DA150S1C 20FZ Outdoor fan motor WZDK50 38G WZDK50 38G WZDK72 38G WZDK50 38G Model 1 4 28 1x4 36K 1x5 36K Compressor DA250S2C 30MT TNB306FPGMC L TNB306FPGMC L Outdoor fan motor WZDK72 38G WZDK180 38G 55 WZDK180 38G Temperature sensor checking Disconnect the temperature sensor from PCB measure the resistance value with a tester ONS Tester Temperature Sensors Room temp T1 sensor Indoor coil temp T2 sensor Outdoor coil temp T3 sensor Outdoor ambient temp T4 sensor Compressor discharge temp T5 sensor Measure the resistance value of each winding by using the multi meter 56 Appendix 1 Temperature Sensor Resistance Value Table for T1 T2 T3 T4 c Jom c Tom 115266 202 12 6431 60 235774 roo 06279 _ 0 54448 44 7940 29 956047 66 189627 106 0 52912 13 0 51426 12 7068 28 8719 68 17647 108 0 49989 44 660898 22 85366 69 17057 109 0 48600 10 0 47256 0 45957 0 44699 0 43482 0 42304 o 35204 ja 54759 80 117393 1202 05602 o 25494 46 40450 86 02661 12 030754 _ 8 22562 7 48 373476 88 090753 1208 02926 9 21809 49 1358962 89 0 87950 129 __ 028482 10 20784 50 34597 7 90 0
8. 8 4 3 Capacity demand Cooling mode Ts T1 Ts 3 b 3 2 C 2 1 d 1 0 e 0 1 f ented s T 27 Heating mode T1 Ts 314 f 2 e 5 0 0 4 Norm value N 8 4 4 Number of indoor unit eem e o T o e i d en Display Number of indoor unit 1 1 2 2 3 3 4 4 5 5 8 4 5 Opening degree of electronic expansion valve Actual opening degree equals the display data times 4 28 8 5 Protection 8 5 1 Three minutes delay at restart for compressor 8 5 2 Temperature protection of compressor discharge When the compressor discharge temp is getting higher the running frequency will be limited as below rules If 102 C lt T5 lt 115 C decrease the frequency to the lower level every 2 minutes till to F1 If T5 115 C for 10 seconds the compressor will stop and restart till T5 90 C 8 5 4 Compressor current limit protection If the compressor current exceeds the current limit value for 10 seconds the compressor frequency will be limited as below table Cooling mode Frequency limit Current frequency Hz Current limit value CA COOL F16 ICOOLLMT12 COOL F15 ICOOLLMT11 COOL_F14 ICOOLLMT10 COOL_F13 ICOOLLMT9 COOL_F12 ICOOLLMT8 COOL 11 ICOOLLMT7 COOL F10 ICOOLLMT6 COOL_F9 ICOOLLMT5 COOL_F8 ICOOLLMT4 COOL_F7 ICOOLLMT3 COOL_F6 ICOOLLMT2 COOL_F5 ICOOLLM
9. P4 Temperature protection of compressor discharge P5 High temperature protection of condenser P6 IPM module protection Note Once these error codes display they will disappear in at least 30 seconds if the unit come back to normal Except E3 amp E4 33 9 3 Trouble shooting 9 3 1 For the indoor unit 9 3 1 1 Indoor EEPROM malfunction Shut off the power supply anc turn it or 1 minute later Is il still displaying the error code Yes If the EEPROM chip is welded on PCB replace the PCE directly Otherwise No Insert the EEPROM well check whether the EEPRON chip plugged in PCB well Yes Replace the indoor 34 9 3 1 2 Indoor outdoor units communication error Indoor outdoor units communication error Star Power of then Power on the A C by the Breaker reconnect the power wire Is it still displaying the error code heck wiring on the outdoor and indoo terminal follow the wiring diagram Is al connecting correctly Nc gt Reconnect the wiring Reconnect the wiring Y Ye Measure V is it moving alternately between positive value and negative value Vs is the voltage between S anc Refer PIC 1 Is all the wiring betweer terminal and Indoor PCB connect ok Turn on all indoor unit by remote controlle Is all indoor unit display Ye Y Cha
10. board is connectec well or correctly Yes Y Judge 2 Whether the low pressure protector is broker Methoc Short connect the low pressure protector socket check whether the system can run normally Nc Y Check whether the refrigerant system is ok Judge 3 Check whether the outdoor ambient Yes Stop the unit temperature is too low Yes Replace low pressure protector Nc Y Judge 4 The refrigerant of the system is leakage Leak huntinc Charge nitrogen or refrigerant Methoc Connectthe pressure to the system if the leakage is serious there s 42 yes Will be distinct gas leakage cici sounc if the 22 i J werthan leakage is slight use the suds mixture ol 0 14MPc water and abluent is also ok if it can make bubble or electronic leak detector Nc Let the refrigerant oul then use the high Yes gt pressure nitrogen or refrigerant to blow pipe vacuumize and charge the refrigerant agair Judge 5 The refrigerant pipe is blockec Nc Y Replace outdoor main boarc 50 9 3 2 8 Current protection of compressor ODU P3 Current protection of compressoi Judge 1 Check whether the input current of the power supply wire is more than 15 For 27K 1x3 itis 18 5 For 3 K 1x4 itis 222 Yes Y Check whether the refrigera
11. 121 48 21 26 88 5 32 128 1 717 9 115 2 49 20 46 89 5 157 129 1 674 10 109 8 50 19 69 90 5 130 1 632 11 104 6 51 18 96 91 4 849 12 99 69 52 18 26 92 4 703 13 95 05 53 17 58 93 4 562 14 90 66 54 16 94 94 4 426 15 86 49 55 16 32 95 4 294 B 25 50 3950K 16 82 54 56 15 73 96 4 167 17 78 79 57 15 16 97 4 045 90 5 3 18 75 24 58 14 62 98 3 927 19 71 86 59 14 09 99 3 812 58 2 Compressor checking Measure the resistance value of each winding by using the tester Input Terminal Blue Blue 4 Red Black Black 3 Red Les Resistance Value DA4130M1C 31FZ DA150S1C 20FZ DA250S2C 30MT TNB306FPGMC L Blue Red 1 770 20 C 0 950 20 C 0 550 20 C 0 530 20 C 59 3 IPM continuity check Turn off the power let the large capacity electrolytic capacitors discharge completely and dismount the IPM Use a digital tester to measure the resistance between P and UVWN UVW and N Digital tester Normal resistance value Digital tester Normal resistance value Red Black Red Black N U 99 oo U V P Several MO N Several MQ V W W Red 4 Indoor AC Fan Motor Measure the resistance value of each winding by using the tester Input Terminal Red 1 Black 2 3 White White O Black RPG20D RPG28D T RPG28D RPG20E T RPG20E RPG13H RPG
12. 2 i ME des 3 way valve SS e er Pai pen Charging x cylinder TF 3E Procedure 1 Connect the charge hose to the charging cylinder open the 2 way valve and the 3 way valve Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder If the refrigerant is RA10A make the cylinder bottom up to ensure liquid charge 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the liquid refrigerant 3 Put the charging cylinder onto the electronic scale and record the weight 4 Open the valves Low side on the charge set and charge the system with liquid refrigerant If the system cannot be charge with the specified amount of refrigerant or can be charged with a little at a time approximately 150g each time operating the air conditioner in the cooling cycle however one time is not sufficient wait approximately 1 minute and then repeat the procedure 5 When the electronic scale displays the proper weight disconnect the charge hose from the 3 way valve s service port immediately If the system has been charged with liquid refrigerant while operating the air conditioner turn off the air conditioner before disconnecting the hose 6 Mounted the valve stem caps and the service port Use torque wrench to tighten the servic
13. 25 T YSK68 4P YDK37 Weilng ongDe Dayang ongDe Weilng Weilng ongDe Weilng 4P 39804896 2550 8 271 3028 41504896 38704896 5750 8 29504896 285 8048 20 C 20 C 20 20 C 20 C 20 C 20 C 20 3450 8 33504896 347 8048 39604896 37804896 55804896 42004896 178 5048 20 C 20 C 20 20 C 20 C 20 C 20 C 20 3450 8 33504896 347 8028 39604896 37804896 55804896 42004896 178 5048 20 20 C 20 20 C 20 C 20 C 20 C 20 Resistance Value Blac k Red Red Yello w Yello w Blue 60
14. 5 until the gauge indicates 0 3 to 0 5 Mpa 6 Disconnect the charge set and the charging cylinder and set the 2 way and 3 way valves to the open position Be sure to use a hexagonal wrench to operate the valve stems 21 7 Mount the valve stems nuts and the service port cap Be sure to use a torque wrench to tighten the service port cap to a torque 18N m Be sure to check the gas leakage 7 7 Re installation while the outdoor unit need to be repaired 1 Evacuation for the whole system sKI Indoor unit N Liquid side m Outdoor unit p m T Open Vacuum pump Procedure 1 Confirm that both the 2 way and 3 way valves are set to the opened position 2 Connect the vacuum pump to 3 way valve s service port 3 Evacuation for approximately one hour Confirm that the compound meter indicates 0 1Mpa 4 Close the valve Low side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approximately 5 minutes after turning off the vacuum pump 5 Disconnect the charge hose from the vacuum pump 22 2 Refrigerant charging Indoor unit Y TZAN Liquid side gt 4 N Outdoor unit valve EE p F 1 Open C l E N Gas side Ne in Ee Y N ER
15. 7 7 7 7 7 9 18 7 7 9 12 18 7 9 9 12 18 9 9 9 12 12 7 7 7 7 9 7 7 7 12 18 7 7 12 12 18 7 9 12 12 12 9 9 9 12 18 7 7 7 7 12 7 7 7 18 18 7 9 9 9 9 7 9 12 12 18 9 9 12 12 12 7 7 7 7 18 7 7 9 9 9 7 9 9 9 12 9 9 9 9 9 9 12 12 12 12 7 7 7 9 9 7 7 9 9 12 7 9 9 9 18 9 9 9 9 12 12 12 12 12 12 7 7 7 9 12 7 7 9 9 18 7 9 9 12 12 9 9 9 9 18 13 7 Installation Details 7 1 Wrench torque sheet for installation Outside diameter Torque Additional tightening torque mm N cm N cm 06 35 1500 153kgf cm 1600 163kgf cm 9 52 2500 255kgf cm 2600 265kgf cm 012 7 3500 357kgf cm 3600 367kgf cm 7 2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet Rated current of appliance Nominal cross sectional area mm FS2MIF 140AE2 FS2MIF 180AE2 FS3MIF 210AE2 FS3MIF 270AE2 FSAMIF 280AE2 FSAMIF 360AE2 FSSMIF 360AE2 The cable size and the current of the fuse or switch are determined by the maximum current indicated on the nameplate which located on the side panel of the unit Please refer to the nameplate before selecting the cable fuse and switch 7 3 Pipe length and the elevation Maximum piping length and height difference 1 drive 2 1 drive 3 1 drive 4 1 drive 5 Max length for all rooms m 30 45 60 75 Max length for one IU m 20 25 30 30 Max height difference OU higher than IU 7 19 10 10 between I
16. 8648 159 02770 16 15948 js 27382 98 07044 18 _ 1023916 _ 18 13910 568 253973 98 06648 18 02276 19 13 2631 59 2467 9 06482 1595 02281 57 Appendix 2 Temperature Sensor Resistance Value Table for T5 K Ohm C K Ohm C K Ohm C K Ohm 20 542 7 20 68 66 60 13 59 100 3 702 19 511 9 21 65 62 61 13 11 101 3 595 18 483 22 62 73 62 12 65 102 3 492 17 455 9 23 59 98 63 12 21 103 3 392 16 430 5 24 57 37 64 11 79 104 3 296 15 406 7 25 54 89 65 11 38 105 3 203 14 384 3 26 52 53 66 10 99 106 3 113 13 363 3 27 50 28 67 10 61 107 3 025 12 343 6 28 48 14 68 10 25 108 2 941 11 325 1 29 46 11 69 9 902 109 2 86 10 307 7 30 44 17 70 9 569 110 2 781 9 291 3 31 42 33 71 9 248 111 2 704 8 275 9 32 40 57 72 8 94 112 2 63 7 261 4 33 38 89 73 8 643 113 2 559 6 247 8 34 37 3 74 8 358 114 2 489 5 234 9 35 35 78 75 8 084 115 2 422 4 222 8 36 34 32 76 7 82 116 2 357 3 211 4 37 32 94 77 7 566 117 2 294 2 200 7 38 31 62 78 7 321 118 2 233 1 190 5 39 30 36 79 7 086 119 2 174 0 180 9 40 29 15 80 6 859 120 2 117 1 171 9 41 28 81 6 641 121 2 061 2 163 3 42 26 9 82 6 43 122 2 007 3 155 2 43 25 86 83 6 228 123 1 955 4 147 6 44 24 85 84 6 033 124 1 905 5 140 4 45 23 89 85 5 844 125 1 856 6 133 5 46 22 89 86 5 663 126 1 808 7 127 1 47 22 1 87 5 488 127 1 762 8
17. E COMPRESSOR l WORD 0819 N18 CN21 ON2O VALVEA VALVES VALVEC VALVED 7 WAIN BOARD RE RECTIFILER2 N ILS MODULE OPTIONAL HEATER FS5MIF 360AE2 907 ELECTRONIC ELECTRONIG ELECTRONIC ELECTRONIC ELECTRONIC 202057190207 EXPANSIVE EXPANSIVE EXPANSIVE EXPANSIVE EXPANSIVE VAEB VALUE A COMPRESSOR PIPE SENSOR NBIENT SENSOR IcN33 MAIN BOARD CN13 TEMP ABCDE PANI INDOOR PIPE OUT RED YELLOW FILTER RECTIFILER2 LOUT H LA ru YELLOW L NOTE Use the magnetic ring not supplied optional part AAJ i OPTIONAL i to hitch the connective cable of indoor and outdoor units after installation one magnetic ring is u
18. P 18K 1 5HP Norm value HP 7K 0 8HP 9K IHP 12K 1 2HP 18K 1 5HP Forced cooling 7 If the temp is lower than 9 degree the digital display tube will show 9 If the temp is higher than 70 degree the digital display tube will show 70 If the indoor unit is not connected the digital display tube will show A indoor unit room temp T A Compressor discharge temp Tp B indoor unit room temp TiB C indoor unit room temp TiC D indoor unit room temp T D E indoor unit room temp TIE A indoor unit evaporator temp T5A B indoor unit evaporator temp T2B C indoor unit evaporator temp T2C D indoor unit evaporator temp T D E indoor unit evaporator temp T2E Condenser pipe temp T3 Outdoor ambient temp T4 AD value of current AD value of voltage If the temp is lower than 0 degree the digital display tube will show 0 If the temp is higher than 50 degree the digital display tube will show 50 If the indoor unit is not connected the digital display tube will show If the temp is lower than 9 degree the digital display tube will show 9 If the temp is higher than 70 degree the digital display tube will show 70 If the indoor unit is not connected the digital display tube will show The display value is between 30 129 degree If the temp is lower than 30 degree the digital display tube will show 30 If the temp is highe
19. SSD Aircon Solutions Ltd SERVICE MANUAL Room Air Conditioner DC Inverter Multi Split Outdoor units FS2MIF 140AE2 FS2MIF 180AE2 FS3MIF 210AE2 FS3MIF 270AE2 FS4MIF 280AE2 FS4MIF 360AE2 FSSMIF 360AE2 NOTE Before servicing the unit please read this at first Always contact with your service center if meet problem FI SM MULTI OUTDOOR FS2 3 4 5MIF AE2 141105 CONTENTS General information of Outdoor Units 2 i e ERST 3 DIMENSIONS eM E 4 Wiring Diagram 7 Refrigeration Cycle Diagram 10 Indoor units combination 12 Installation 14 Electronic Control FUNCHON Zr eerdere en uu nk kn been 25 Troubleshooting Eie t 31 1 General information of Outdoor Units Model name Dimension mm Compressor FS2MIF 140AE2 845x320x700 DA130M1C 31FZ FS2MIF 180AE2 845x320x700 DA150S1C 20FZ FS3MIF 210AE2 845x320x700 DA150S1C 20FZ FS3MIF 270AE2 900x315x860 DA250S2C 30MT FS4MIF 280AE2 900x315x860 DA250S2C 30MT FS4MIF 360AE2 990x345x965 TNB306FPGMC L FS5MIF 360AE2 990x345x965 TNB306FPGMC L 2 Features Outdoor unit Power relay control Low noise air flow system Hydrophilic aluminum fin The hydrophilic fi
20. T1 Decrease the frequency to COOL_F4 and run at COOL_F4 for 3 minutes After that the frequency will be adjusted according to the capacity demand and rise to the upper level every 3 minutes When the frequency gt COOL_F4 via capacity demand If the current frequency is lower than COOL_F4 the frequency will not be limited After 10s of the compressor start if the current gt ICOOL the AC will display the failure for 30 seconds and stop The AC will restart 3 minutes later Heating mode Frequency limit Current frequency Hz Current limit value CA HEAT_F16 IHEATLMT 12 HEAT_F15 IHEATLMT 11 HEAT F14 IHEATLMT10 HEAT F13 IHEATLMT9 HEAT F12 IHEATLMT8 HEAT F11 IHEATLMT7 HEAT F10 IHEATLMTG HEAT F9 IHEATLMT5 Decrease the frequency to HEAT F4 and run at HEAT F4 for 3 minutes After that the frequency will be adjusted according to the capacity demand and rise to the upper level every 3 minutes When the frequency Heat F4 via capacity demand 29 HEAT F8 IHEATLMT4 HEAT_F7 IHEATLMT3 HEAT_F6 IHEATLMT2 HEAT_F5 IHEATLMT 1 If the current frequency is lower than HEAT_F4 the frequency will not be limited After 10s of the compressor start if the current gt IHEAT the AC will display the failure for 30 seconds and stop The AC will restart 3 minutes later 8 5 5 Indoor outdoor units communication protection If the in
21. U and OU OU lower than IU 15 15 15 15 Max height difference between IUs m 10 10 10 10 Additional refrigerant charge 1 drive 2 1 drive 3 1 drive 4 1 drive 5 Chargeless pipe 3 PE 10 15 20 25 length m Additional 15 x length for all 15 x length for all 15 x length for all 15 x length for all refrigerant charge 9 rooms 10 rooms 15 rooms 20 rooms 25 14 Caution Refrigerant pipe diameter is different according to indoor unit to be connected When using the extension pipe refer to the tables below Q When refrigerant pipe diameter is different from that of outdoor unit union for 18K indoor unit additional transfer connector needs to be used on outdoor unit union Indoor unit Extension pipe diameter mm inch Model Pipe diameter mm inch Liquid 6 35 1 4 Liquid 6 35 1 4 7K9K12K Gas 9 52 3 8 Gas 9 52 3 8 Liquid 6 35 1 4 Liquid 6 35 1 4 18K Gas 12 7 1 2 Gas 12 7 1 2 Outdoor unit union diameter mm inch Liquid 6 35 1 4 Indoor unit A B C D Gas 9 52 3 8 7 4 Installation for the first time Air and moisture in the refrigerant system have undesirable effects as below Pressure in the system rises Operating current rises Cooling or heating efficiency drops Moisture in the refrigerant circuit may freeze and block capillary tubing Water may lead to corrosion of parts in the refrigera
22. VE B es 000007 EXV C CAPILIARY LIQUID VALVE C T CHECK VALVE 4 09900 D CAPILIARY D 13 LIQUID VALVE D T Condenser 7090907 CAPILIARY TUBE atemp sensor EXV E CAPILIARY E LIQUID VALVE E 06000 Somer T2B A Evaporator CONDENSER GAS VALVE A temp sensor outlet u 4 GASVALVEB T2B B u We 7 T2B C ay v DASAREYES 4 WAY VALVE Accumulator 4 COOLING T2B D lt 5 High pressure GASYAEVED aee switch 4 lt lt 77 gt 015 Discharge GAS VALVE E T2B E Low pressure temp sensor 9 switch f lt Compressor 11 6 Indoor units combination 6 1 Indoor unit combination for FS2MIF 140AE2 Two unit 7 7 9 9 7 9 9 12 7 12 6 2 Indoor unit combination for FS2MIF 180AE2 One unit Two unit 18 7 7 9 9 7 9 9 12 7 12 9 18 7 18 12 12 6 3 Indoor unit combination for FS3MIF 210AE2 Two unit Three unit 7418 9412 74747 7 9 12 9 18 7 7 9 9 9 9 12 12 7 7 12 9 9 12 12 18 7 9 9 6 4 Indoor unit combination for FS3MIF 270AE2 Two unit Three unit 7418 9412 12 12 7 7 7 7 9 9 7 12 18 9 12 12 9 18 12 18 7 7 9 7 9 12 9 9 9 9 12 18 18 18 7 7 12 7 9 18 949412 12 12 12 7 7 18 7 12 12 9 9 18 12 6 5 Indoor unit combination for FS4MIF 280AE2
23. amp is less than 1 5A 8 2 5 Four way valve normal working amp is less than 1A 8 3 Outdoor unit s digital display tube There is a digital display tube in outdoor PCB Digital display tube display function e In standby the LED displays e In compressor operation the LED display the running frequency e In defrosting mode The LED displays dF or alternative displays between running frequency and each displays 0 55 e In compressor pre heating The LED displays PH or alternative displays between running frequency and PH each displays 0 55 e During the oil return process The LED displays RO or alternative displays between running frequency and RO each displays 0 55 e In low ambient cooling mode the LED displays LC or alternative displays between running frequency LC each displays 0 55 e In forced cooling mode the LED displays FC or alternative displays between running frequency and FC each displays 0 55 e When PFC module protection occurs three times within 15 minutes the LED displays E6 or alternative displays between running frequency E6 each displays 0 55 e n protection or malfunction the LED displays error code or protection code 25 8 4 Outdoor unit point check function There is a check switch in outdoor PCB Press the switch N times it will display the content corresponding to No N After getting into the check function it will display No N wit
24. does not indicate 0 1Mpa after pumping 30 minutes it should be pumped 20 minutes more If the pressure can t achieve 0 1Mpa after pumping 50 minutes please check if there are some leakage points Fully close the handle Lo valve of the manifold valve and stop the operation of the vacuum pump Confirm that the gauge needle does not move approximately 5 minutes after turning off the vacuum pump 7 Turn the flare nut of the 3 way valves about 45 counterclockwise for 6 7seconds after the gas N coming out then tighten the flare nut again Make sure the pressure display in the pressure indicator is a little higher than the atmosphere pressure Then remove the charge hose from the 3 way valve 8 Fully open the 2 way valve and 3 way valve and securely tighten the cap of the 3 way valve 16 2 Air purging by refrigerant c Outdoor unit P nv 2 way valve Gas side Procedure 1 Confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge set and a charging cylinder to the service port of the 3 way valve 3 Air purging Open the valves on the charging cylinder and the charge set Purge the air by loosening the flare nut on the 2 way valve approximately 45 for 3 seconds then closing it for 1 minute repeat 3 times After purging the air use a torque wrench to tighten the flare nut on the 2 way valve 4 Check the gas leakage Check the fla
25. door units can not receive the feedback signal from the outdoor units for 2 minutes the AC will stop and display the failure 8 5 6 High condenser coil temp protection When T3 gt 65 C for 3 seconds the compressor will stop while the indoor fan and outdoor fan will continue When T3 lt 52 C the protection will release and the compressor will restart after 3 minutes 8 5 7 Outdoor unit anti freezing protection When T2B lt 0 C for 250 seconds the indoor unit capacity demand will be zero and resume to normal when T2B gt 10 C 8 5 8 Oil return Running rules 1 If the compressor frequency keeps lower than RET_OIL_FREQ1_ADD for RET_OIL_TIME1_ADD the AC will rise the frequency to RET OIL FREQ2 ADD for RET OIL TIME2 ADD and then resume to former frequency 2 The EXV will keep 300p while the indoor units will keep the current running mode If the outdoor ambient is higher than TempT4HeatLimit ADD during the oil return the AC quit oil return 30 9 Troubleshooting 9 1 Indoor unit error code explanation PROFESSIONAL series HEAT R series Display Operation lamp fash times O Outdoor EEPROM parameter error E4 0 pen or shot circuit of TA temperature sensor F2 0 Open or shor creuit of T3 temperature sensor F3 0 Openor short of T temperature sensor O Outdoor fan speed out of contol Fo 7770 Open or shor crout of T28 temperature sensor P4 P5 Inverter compresso
26. e port cap to a torque of 18N m Be sure to check for gas leakage 23 7 8 Operation temperature range Mode emperature Cooling operation Heating operation Drying operation Room temperature 17 32 C 0 30 C 17 32 C 0 50 Outdoor temperature 15 50 For 15 C 24 C 0 C 50 C the models with low temperature cooling system CAUTION 1 If the air conditioner is used beyond the above conditions certain safety protection features may come into operation and cause the unit to operate abnormally 2 The room relative humidity should be less than 809 If the air conditioner operates beyond this figure the surface of the air conditioner may attract condensation Please set the vertical air flow louver to its maximum angle vertically to the floor and set HIGH fan mode 3 The optimum performance will be achieved during this operating temperature zone 24 8 Electronic control function 8 1 Abbreviation T1 Indoor ambient temperature T2 Coil temperature of indoor heat exchanger middle T2B Coil temperature of indoor heat exchanger outlet T3 Coil temperature of outdoor heat exchanger T4 Outdoor ambient temperature T5 Compressor discharge temperature Ts Setting temperature 8 2 Electric control working environment 8 2 1 Input voltage 198V 264V 8 2 2 Input power frequency 50Hz 8 2 3 Indoor fan normal working amp is less than 1A 8 2 4 Outdoor fan Normal working
27. ection ODU P1 For FS4MIF 280AE2 FS4MIF 360AE2 FS5MIF 360AE2 High pressure protection Judge 1 Whether the wiring between the high pressure switch and main control No Connect it well board is connected well or correctly Yes Y Judge 2 Whether the high pressure protector is broken Method Short connect the high pressure protector Socket check whether the System can run normally No Y Check whether the refrigerant system is ok Judge 3 Check whether the Yes Replace high pressure protector outdoor ambient temperature is higher than Yes Stop the unit 50 C No Y Judge 4 Check whether the outdoor unit is bad Make the outdoor unit ventilate well ventilation No Judge 5 Check whether the heat exchanger is dirty Let the refrigerant out then use the Judge 6 Check whether the high pressure nitrogen or refrigerant to PAPA Yes 2 refrigerant pipe is blocked blow pipe vacuumize and charge the refrigerant again Replace outdoor main board Yes Clean the heat exchanger 49 9 3 2 7 Low pressure protection ODU P2 For FS4MIF 280AE2 FS4MIF 360AE2 FSSMIF 360AE2 Low pressure protectior Judge 1 Whether the wiring between the low pressure protector and mair No Connect it well control
28. en main board and the IPM module is connected tightly Yes T eck whether the connecting line of the compressor is onnected correctly or tigh Yes Replace the IPM module check whether the system can work normally heck if the outdoor fan runs properly or the outdoor nit ventilation is good Replace the main board check whether the system can work normally eplace the compressor check Yes whether the system can work normally Yes No No n No n r v gt Connect it tightly check ok or not ok or not Connect it well check Check whether the resistance of the fan motor is normal If not replace the fan motor For other models refer to the solution of fan speed has been out of control malfunction Find out the cause and have it solved Yes 54 Yes Trouble is solved heck whether the input power supply is correct 208 230V 1N 60Hz Check whether the power supply line is connected correctly and tightly heck whether the line in E part box are connected tightly Regulate it to correct the check whether the system can work normally No gt Ye No Connect it correctly and tightly check ok or not Connect it tightly check ok or not No eR ai Check whether the bridge rectifiers are normal Use the m
29. fer to the Appendix 2 Yes i Replace outdoor main board Trouble is solved gt Replace the compressor discharge temp sensor 52 9 3 2 9 High temperature protection of condenser ODU P5 When outdoor pipe temperature is more than 65 the unit will stop and unit runs again when outdoor pipe temp less than 52 C High temperature protection o condensel Replace the temperature sensor Check whether the condenser temperature is more thar 65 C heck whether the resistance of condenser temp sensor is correct refer to the Appendix 1 Yes Replace outdoor main board Yes Judge 1 Check whether the outdoor ambien temperature is higher than Yes Stop the unit 5CC Y dudes Check Yes Clean the heat exchanger heat exchanger is dirty Ne Nc Judge 3 The refrigeran Let the refrigerant ou then use the high DS S Yes pressure nitrogen or refrigerant to blow pipe PP vacuumize and charge the refrigerant again 53 9 3 2 10 IPM module protection ODU P6 IPM module protection Check whether the voltage range of P N on IPM module is normal DC277 356V for 18 27KBtu h DC277 410V for 36KBtu h 5 h ck whether the connecting line betwe
30. h 1 5s meanwhile the low bit decimal of digit display flashing indicated to get into the check function display After 1 5s it will display the content corresponding to No N the digital display tube will display the follow procedure when push SW1 each time oo 23 24 25 26 27 35 36 Display Normal display No of indoor units in good connection Outdoor unit running mode code A indoor unit capacity B indoor unit capacity C indoor unit capacity D indoor unit capacity E indoor unit capacity A Indoor unit capacity demand code B Indoor unit capacity demand code C Indoor unit capacity demand code D Indoor unit capacity demand code E Indoor unit capacity demand code Total indoor units amendatory capacity demand code The frequency corresponding to the total indoor units amendatory capacity demand The frequency after the frequency limit The frequency sending to compressor control chip A indoor unit evaporator outlet B indoor unit evaporator outlet temp T23B C indoor unit evaporator outlet temp T23C D indoor unit evaporator outlet temp T2pD E indoor unit evaporator outlet temp T gt 5E Remark Display running frequency running state or malfunction code Actual data Off 0 Fan only 1 Cooling 2 Heating 3 Forced cooling 4 The capacity unit is horse power If the indoor unit is not connected the digital display tube will show 7K 0 8HP 9K IHP 12K 1 2H
31. hether the main PCB is normal through index 2 Replace the far malfunetion No gt motor still existing replace the A main PCE No Replace the main PCB No The malfunction is solvec Yes Index 1 1 Outdoor DC fan motor control chip is inside fan motor Measure the resistance value of each winding by using the tester If any resistance value is zero the fan motor must have problems and need to be replaced Index2 NO Color Red Black White Yellow AA WIN gt Blue 1 Outdoor DC fan motor control chip is inside fan motor Power on and when the unit is in standby measure the voltage of pin1 pin3 pin4 pin3 in fan motor connector If the value of the voltage is not in the range showing in below table the PCB must have problems and need to be replaced For other models DC motor voltage input and output NO Color Signal Voltage 1 Red Vs Vm 140V 380V 2 3 Black GND OV 4 White Vcc 13 5 16 5V 5 Yellow Vsp 0 6 5V 6 Blue FG 15V 48 9 3 2 6 High pressure prot
32. ignal Voltage 1 Red Vs Vm 192V 380V 2 m m 3 Black GND OV 4 White Vcc 13 5 16 5V 5 Yellow Vsp 0 6 5V 6 Blue FG 15V For console 9 4 6 2 7 1 3 2 NO Color Signal Voltage 1 Red VDC 310V 2 S E X 3 White Vcc 15V 4 Blue FG 15V 5 Yellow Vsp 0 7 5V 6 Black GND OV 41 9 3 1 4 Open or short circuit of temperature sensor Check the connections between temperature sensor and PCB Are the connections good Yes Check the resistance value of the sensor via Appendix 1 No Correct the connections Yes gt Replace indoor or outdoor PCB No Y Replace the sensor 9 3 1 6 Full water malfunction If the water level switch is inserted well Yes Y If the water level switch is broken No Y If the water pump is normal Yes Y gt Insert the water level switch well Yes Replace the water level switch No Replace the water pump Check PCB board or replace the indoor main PCB 42 9 3 2 For the outdoor unit 9 3 2 1 Outdoor EEPROM malfunction ODU E0 Outdoor EEPROM malfunction Yes If the EEPROM chit is welded on PCE replace the PCB directly Otherwise No Insert the EEPROM well check whether the EEPRON chip plugged in PCB wel Yes Re
33. module protection ODU For FS4MIF 280AE2 FSAMIF 360AE2 FS5MIF 360AE2 PFC module protectior Check whether the connecting line between main board and the PFC module is connected tightly Yes Connect it tightly check normal or not Check whether the voltage range of P N on IPM module is normal DC 277 356V for 18 27KBtu h DC277 410V for 36KBtu h No Check inductance of PFC module is good If the inductance is good the resistance of the two ports is 0 Yes r Replace the PFC module No Yes Replace the outdoor main boarc Yes Y whether the No gt Replace the inductance Y gt Trouble is solvec 46 9 3 2 5 Outdoor unit fan speed has been out of control E8 Shut off the power supply and turn it or 1 minute later Is it still displayinc the error code No gt Yes Shut off the power supply rotate the fan by hand Does it rotate properly Yes Check the wires of far motor Are all the connections good Yes Y Check whether the fan motor is normal througr index 1 Yes The unit operates normally No No Find out the cause and have it solved For example check whether the fan is blocked or the bearinc is broken Correct the connections If the Check w
34. n can improve the heating efficiency at operation mode 4 way valve control It is only operated in the heating operation mode except defrosting operation Anti rust cabinet Valve protection cover It protects the valves and prevents water from dripping Discharge pipe temperature protection 3 Dimensions FS2MIF 140AE2 FS2MIF 180AE2 FS3MIF 210AE2 700 zE FS3MIF 270AE2 FS4MIF 280AE2 B FSAMIF 360AE2 FS5MIF 360AE2
35. ng cylinder onto the electronic scale and record the weight 4 Operate the air conditioner at the cooling mode 5 Open the valves Low side on the charge set and charge the system with liquid refrigerant 6 When the electronic scale displays the proper weight refer to the gauge and the pressure of the low side disconnect the charge hose from the 3 way valve s service port immediately and turn off the air conditioner before disconnecting the hose 7 Mount the valve stem caps and the service port Use torque wrench to tighten the service port cap to a torque of 18N m Be sure to check for gas leakage 19 7 6 Re installation while the indoor unit need to be repaired 1 Collecting the refrigerant into the outdoor unit Yn ZN a SP Outdoor unit valve ba 5 i Jn ZN Gas side SAN 2 n 3 way Open EN i Close Procedure 1 Confirm that both the 2 way and 3 way valves are set to the opened position Remove the valve stem caps and confirm that the valve stems are in the opened position Be sure to use a hexagonal wrench to operate the valve stems 2 Connect the charge hose with the push pin of handle lo to the 3 way valves gas service port 3 Air purging of the charge hose Open the handle Lo valve of the manifold valve slightly to purge air from the charge h
36. nge the Indoor PCE urn off the all indoor units Is IP power LED or c perating LED lamt Or Refer PIC2 change IPIV Power on by remote controller Is it stil displaying the error code after 3 minute Ye Is the reactor connecting wel main board lamp on Refer PIC Nc Reconnect the wiring Yet Change Outdoor PCB sindoor units number correct Check on the outdoor check poin 2 for dua zone fortri zone 4 for qua zone Refer PIC Trouble is solvec No1 Tt second time A Change outdoor unit PCB assembly include wiring totally 35 Ne 36 Pic 1 check the voltage of N to S Vs is it moving alternately between positive value and negative value Pic 2 IPM For dual tri zone Pic 2 IPM For qua zone 37 PIC3 Main board LED when power on and unit standby PIC 4 check point button Press 1 time for check how many indoor units are connected 9 3 1 3 indoor unit fan speed has been out of control Shut off the power supply and tum it or 1 minute later Is it still displayinc the error code Yes y Shut off the power supply rotate the fan by hand Does it rotate properly No The unit operates normally Yes Check the wires of far motor Are all the c
37. nt system is ok Judge 2 Check whether the outdoor ambient temperature is higher than Yes Stop the uni 50 C Nc Y Judge 3 Check whether the outdoor unit is bad ventilation Yes Make the outdoor unit ventilate wel Nc v Judge 4 Check whether the heat exchanger is dirty Yes Clean the heat exchanger v Judge 5 The refrigerant pipe is blockec Let the refrigerant oui then use the high Yes pressure nitrogen or refrigerant to blow pipe vacuumize and charge the refrigerant again Nc Replace outdoor main board and check whether Yes the system can run normally Nc Replace the electric control box gt Trouble is solved 51 9 3 2 4 Temperature protection of compressor discharge ODU P4 Temperature protection of compressor discharge Check whether the compressor discharge temp Ye Yes Stop leaking and add refrigerant is more than 115 C No y Check whether the wiring connection is right between compressor discharge temp No gt Correct the wiring connection gt sensor and PCB according to wiring diagrams Yes Judge The discharge temp sensor is broken Method Check whether the resistance of compressor discharge temp sensor is right re
38. nt system Therefore the indoor units and the pipes between indoor and outdoor units must be leak tested and evacuated to remove gas and moisture from the system Gas leak check Soap water method Apply soap water or a liquid neutral detergent on the indoor unit connections or outdoor unit connections by a soft brush to check for leakage of the connecting points of the piping If bubbles come out the pipes have leakage 1 Air purging with vacuum pump 15 Indoor unit Liquid side Outdoor unit Two way valve CN Close gt _ Ai valve id Pressure 7 wy res mou c fio gt U pande Lo Handle Hi Charge hose Charge hose Vacuum pump Compound meter Vacuum pump 1 Completely tighten the flare nuts of the indoor and outdoor units confirm that both the 2 way and 3 way valves are set to the closed position Connect the charge hose with the push pin of handle lo to the 3 way valves gas service port Connect the charge hose of handle hi connection to the vacuum pump Fully open the handle Lo of the manifold valve 5 Operate the vacuum pump to evacuate 6 Make evacuation for 30 minutes and check whether the compound meter indicates 0 1Mpa If the meter
39. onnections good Find out the cause and have it solved For example check Yes Y Check whether the fan motor is normal througr index 1 Yes Check whether the main PCB is normal through index 2 ad whether the fan is blocked or the bearinc is broken No Correct the connections If the malfunction is solvec Index 1 1 Indoor AC fan motor Yes malfunction is Replace the far mn gt still existing motor replace the main PCE No Replace the main PCB No The Measure the resistance value of each winding by using the tester Input Terminal P Red 1 a S d Black 2 3 White 3 Y YN Black For the definite value of the resistance refer to 9 4 Main parts check 2 Indoor DC fan motor control chip is inside fan motor Measure the resistance value of each winding by using the tester If any resistance value is zero the fan motor must have problems and need to be replaced 38 For other models E NSS 123456 NO Color Red Black White Yellow oc WIN Blue For console i NO Color
40. ose for 5 seconds and then close it quickly 4 Set the 2 way valve to the close position 5 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0 1MPa 6 Set the 3 way valve to the closed position immediately Do this quickly so that the gauge ends up indicating 0 3 to 0 5Mpa Disconnect the charge set and tighten the 2 way and 3 way valve s stem nuts Use a torque wrench to tighten the 3 way valves service port cap to a torque of 1 8 kgf m Be sure to check for gas leakage 20 2 Air purging by the refrigerant indoor unit NN Liquid side EES 7 N A M n gt N Gas side Procedure 1 Confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge set and a charging cylinder to the service port of the 3 way valve Leave the valve on the charging cylinder closed 3 Air purging Open the valves on the charging cylinder and the charge set Purge the air by loosening the flare nut on the 2 way valve approximately 45 for 3 seconds then closing it for 1 minute repeat 3 times After purging the air use a torque wrench to tighten the flare nut on the 2 way valve 4 Check the gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut on the 2 way valve approximately 4
41. place the outdoor main boarc 43 9 3 2 2 Communication malfunction between IPM board and outdoor main board ODU E3 Communication malfunction between IPM board and outdoor main board Is there at least one LED in the IPM board light No Check the signal wire between the IPM module and the main Yes board is it connected good No Yes Reconnect and retry Is error still display No y No Replace IPM board and then check whether the Yes system can run normally No Y Replace outdoor main board and then check Yes Ri whether the system can run normally No Y Y Replace p iE control d mio bleissalved 44 9 3 2 3 Voltage protection ODU E5 Voltage protectior Check the voltage of outdoor unit power supply whether the voltage between L L1 and LZ is about 220 240VAC Yes Y No Check the power supply for 36KBtu h No Y Replace bridge rectifiers and then check whether the system can run normally No Is Replace IPM boarc and Yes then check whether the system can run normally Check whether the voltage of IPM board P and N is normal DC277 356V for 18 27KBtu h DC277 410V No Replace outdoor board Trouble is solvec 45 9 3 2 4 PFC
42. r drive protection Mode conflict Low pressure protection Just matching with FS4MIF 360AE2 light X off x flash Light Commercial series Except Console DISPLAY NO MALFUNCTION RUN Timer DEF Alarm DIGITAL TUBE 1 Open or short circuit of T1 temperature sensor x x x EO 2 Open or short circuit of T2 temperature sensor x x X E1 3 Indoor outdoor units communication error x x x E2 4 Full water malfunction x x x E3 5 Indoor EEPROM malfunction x x x x E4 6 IPM module protection x x O E5 Open or short circuit of T3 or T4 temperature sensor or 5 Outdoor EEPROM malfunction o Ee 8 Outdoor fan speed has been out of control x X E7 9 Indoor fan speed has been out of control x F5 10 Voltage protection X O P0 12 Outdoor unit over current protection x lt Se X P2 13 Inverter compressor drive protection 9 x x P4 14 Mode conflict x 5 Flash at2 5Hz Flash at0 5Hz Olight X off Note Digital display is only available for A5 duct type 31 For Console NO Malfunction Running lamp Timer lamp Defrosting lamp 1 Open or short circuit of T1 temperature sensor X X 2 Open or short circuit of T2 temperature sensor X X 3 Communication malfunction between indoor and outdoor X A X units 4 Outdoor fan speed has been out of control X 5 Indoor EEPROM malfunction
43. r onto the electronic scale and record the weight 4 Operate the air conditioner at the cooling mode 5 Open the valves Low side on the charge set and charge the system with liquid refrigerant 6 When the electronic scale displays the proper weight refer to the table disconnect the charge hose from the 3 way valve s service port immediately and turn off the air conditioner before disconnecting the hose 7 Mount the valve stem caps and the service port Use torque wrench to tighten the service port cap to a torque of 18N m Be sure to check for gas leakage 18 7 5 Adding the refrigerant after running the system for many years ge Indoor unit Liquid side 2 Outdoor unit C ita NZ CZ v C m Yi H I Fu C L AZ alll ur P j way valve he 1 4 om TU Charging cylinder 22 Electronic scale Procedure 1 Connect the charge hose to the 3 way service port open the 2 way valve and the 3 way valve Connect the charge hose to the valve at the bottom of the cylinder If the refrigerant is R410A make the cylinder bottom up to ensure liquid charge 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the liquid refrigerant 3 Put the chargi
44. r than 99 degree the digital display tube will show single digit and tens digit For example the digital display tube show 0 5 means the compressor discharge temp is 105 degree The display value is hex number For example the digital display tube show it means AD value is 205 26 37 EXV open angle for A indoor unit Actual data 4 If the value is higher than 99 the digital display tube will show single digit and tens digit For example digital display tube show 2 0 it means the EXV open angle is 120x4 480p 42 Frequency limit symbol Sum T2 value of all indoor units number of indoor units in good connection The display value is hex number For example the digital display tube show 2A then Bit5 1 Bit3 1 Bitl 1 It means frequency limit caused by T4 T3 and current Average value of T2 Outdoor unit fan motor state The last error or protection code Off 0 High speed 1 Med speed 2 Low speed 3 Breeze 4 Super breeze 5 45 00 means no malfunction and protection The following items from 8 4 1 to 8 4 5 are for the explanation of the point check functions 8 4 1 Frequency of compressor Display Frequency of compressor Hz 30 30 Stand by 60 60 8 4 2 Running mode Display Corresponding mode 0 Off 1 Fan only 2 Cooling mode 3 Heating mode 4 Forced cooling
45. re connections for gas leakage 5 Discharge the refrigerant Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut on the 2 way valve approximately 45 until the gauge indicates 0 3 to 0 5 Mpa 6 Disconnect the charge set and the charging cylinder and set the 2 way and 3 way valves to the open position Be sure to use a hexagonal wrench to operate the valve stems 7 Mount the valve stems nuts and the service port cap 17 Be sure to use a torque wrench to tighten the service port cap to a torque 18N m Be sure to check the gas leakage 3 Adding the refrigerant if the pipe length gt 5m Indoor unit YT 1022 Liquid i Outdoor unit ms EZ Je T 77308 a C pen N J N Gas side 17 9 C el en fm way valve UN KCN Charging cylinder Electronic scale Procedure 1 Connect the charge hose to the charging cylinder open the 2 way valve and the 3 way valve Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder If the refrigerant is R410A make the cylinder bottom up to ensure the liquid charge 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the liquid refrigerant 3 Put the charging cylinde
46. sed for one cable R25027 4 WAYS VALVE 5 Refrigeration Cycle Diagram 5 1 Refrigeration circuit drawing of inverter 1 drive 2 type INDOOR OUTDOOR EXV A CAPILIARY A LIQUID VALVE A gt 00000 CHECK VALVE EXV B CAPILIARY B OT LIQUID VALVE B 790506 Condenser seu p temp sensor CAPILIARY TUBE HEAT WERE PANE 4 T1 Room T4 Ambient EXCHANGE temp sensor temp sensor CONDENSER T2B A Evaporator T2 GAS VALVE A temp sensor outlet temp sensor q j middle lt l A I 4 WAY VALVE T2B B GAS VALVE B 0 gt e777 Accumulator 5 Discharge 2 temp sensor Compressor COOLING HEATING 4 2 Refrigeration circuit drawing of inverter 1 drive 3 type INDOOR OUTDOOR EXV A CAPILIARY A LIQUID VALVE A 7 t EXV B CAPILIARY B LIQUID VALVE B T CHECKVALVE UE 00000 dU EXV C CAPILIARY C 3 T3 LIQUID VALVE C AE Condenser 7009007 CAPILIARY TUBE p femp sensor HEAT HEAT NES 1 T1 Room T4 Ambient EXCHANGE temp sensor temp sensor CONDENSER T2B A Evaporator GAS VALVE A temp sensor outlet T2 Evaporator 0 o temp sensor lt middle 2 D M Y 4 WAY VALVE
47. ultimeter to measure the resistance between each two terminals check whether there is the condition that value of resistance is 0 No Yes Replace the bridge rectifiers Check whether the connecting line of every reactor is normal If the line is broken the resistance of the two ports is eo models except for M40A 36HFN1 Q M40D 28HFN1 Q M50C 36HFN1 Q Check whether the PFC module broken for M40A 36HFN1 Q M40D No 28HFN1 Q M5OC 36HFN1 Q Replace the connecting line or reactor or replace the PFC module for M40C 36HRFN1 M 9 4 Main parts check Spec Indoor unit Model FSAMI Pro 71AE2 FSAI Pro 91AE2 FSAI Pro 121AE2 FSAIF Pro 181AE2 Indoor fan motor RPG20E RPG20E RPG20E WZDK30 38G Model FSAI Pro 90AE1 FSAI Pro 120AE1 FSAI Pro 180AE1 Indoor fan motor RPG13H RPG20E RPG25 Model FSAIF HT 91AE2 FSAIF HT 121AE2 FSAIF HT 181AE2 Indoor fan motor WZDK20 38G WZDK20 38G WZDK58 38G Model 7K Duct 9K Duct 12K Duct 18K Duct Indoor fan motor WZDK27 38GS WZDK27 38GS WZDK27 38GS YSK68 4P Model 7K Cassette 9K Cassette 12K Cassette 18K Cassette Indoor fan motor WZDK37 38G WZDK37 38G WZDK37 38G YDK37 4P Model 9K Console 12K Console 18K Console Indoor fan motor RD 280 20 8A RD 280 20 8A RD 280 20 8A Outdoor uni t
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