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Revision A2: 160527001, Content updated.

Aurora MONO Split DC Inverter

Air Conditioner

SERVICE MANUAL

Table of Contents

Precaution

Part Names And Functions

Dimension

Refrigerant Cycle Diagram

Wiring Diagram

Installation Details

Operation Characteristics

Electronic Function

Troubleshooting

10. Disassembly Instructions

WARNING



Installation MUST conform with local building codes or, in the absence of local codes, with the

National Electrical Code NFPA70/ANSI C1-1993 or current edition and Canadian Electrical

Code Part1 CSA C.22.1.



The information contained in the manual is intended for use by a qualified service technician

familiar with safety procedures and equipped with the proper tools and test instruments



Installation or repairs made by unqualified persons can result in hazards to you and others.



Failure to carefully read and follow all instructions in this manual can result in equipment

malfunction, property damage, personal injury and/or death.



This service is only for service engineer to use.

Model Numbers:

MSABB-12HRDN1-BP0Q1W, MSABD-18HRDN1-MP0Q1W, MSABE-23HRDN1-MP0Q1W,
MSABF-36HRFN1-MP0Q1W(B)

PERFECT AIRE
QUICK CONNECT MINI-SPLIT
2ND GENERATION

2PAMSHQC12-17.5
2PAMSHQC18-16
2PAMSHQC24-16
2PAMSHQC36-16

Содержание 2PAMSHQC12-17.5

Страница 1: ...lectrical Code Part1 CSA C 22 1 The information contained in the manual is intended for use by a qualified service technician familiar with safety procedures and equipped with the proper tools and tes...

Страница 2: ...12 6 3 Adding the refrigerant after running the system for many years 12 6 4 Re installation while the indoor unit need to be repaired 12 6 5 Re installation while the outdoor unit need to be repaired...

Страница 3: ...and the fins on the condenser and evaporator For installation always contact the dealer or an authorized service center Do not install the product on a defective installation stand Be sure the instal...

Страница 4: ...ause water leakage Keep level even when installing the product It can avoid vibration of water leakage Do not install the product where the noise or hot air from the outdoor unit could damage the neig...

Страница 5: ...Do not mix old and new batteries or different types of batteries There is risk of fire or explosion Do not recharge or disassemble the batteries Do not dispose of batteries in a fire They may burn of...

Страница 6: ...2K MSABB 12HRDN1 BP0Q1W MOBA30 12HDN1 BQ0W 18K MSABD 18HRDN1 MP0Q1W MOB30 18HDN1 MQ0W 24K MSABE 23HRDN1 MP0Q1W MOCA30 23HDN1 MQ0W 34K MSABF 36HRFN1 MP0Q1W B MOD30 36HFN1 MP0W 2PAMSHQC12 SZW 17 5 2PAMS...

Страница 7: ...5 2 2 Indoor Outdoor units...

Страница 8: ...HRDN1 BP0Q1W 802x189x297 31 57x7 44x11 69 B MSABD 18HRDN1 MP0Q1W 965x215x319 37 99x8 46x12 56 C MSABE 23HRDN1 MP0Q1W 1080x226x335 42 52x8 90x13 19 D MSABF 36HRFN1 MP0Q1W B 1259x282x362 49 57x11 10x14...

Страница 9: ...7 For Mounted plate B For Mounted plate C...

Страница 10: ...8 For Mounted plate D For Mounted plate E...

Страница 11: ...298 mm 30 31 inch 11 81 inch 21 85 inch 33 07 inch 19 17 inch 11 73 inch MOB30 18HDN1 MQ0W 800 mm 333 mm 554 mm 870 mm 514 mm 340 mm 31 50 inch 13 11 inch 21 81 inch 34 25 inch 20 24 inch 13 39 inch M...

Страница 12: ...IQUID SIDE GAS SIDE HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR 2 WAY VALVE 3 WAY VALVE 4 WAY VALVE COOLING HEATING T2 Evaporator temp sensor T1 Room temp sensor ACCUMULATOR INDOOR OUT...

Страница 13: ...E GAS SIDE HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER Compressor 2 WAY VALVE 3 WAY VALVE 4 WAY VALVE COOLING HEATING T2 Evaporator temp sensor T1 Room temp sensor INDOOR OUTDOOR Accumulator Elec...

Страница 14: ...t 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 bo...

Страница 15: ...and outdoor units confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge hose with the push pin of handle lo to the 3 way valves gas service port 3 Connect t...

Страница 16: ...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 electro...

Страница 17: ...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...

Страница 18: ...ode Displays the self diagnostic codes Dispalys for three seconds when Timer ON Fresh Swing Turbo or Silence feature is activated Dispalys for three seconds when Fresh Swing Turbo or Silence feature i...

Страница 19: ...r fan will open 7s later If the unit runs in heating mode the indoor fan will be also controlled by anti cold wind function 8 3 7 Compressor preheating functions Preheating permitting condition When T...

Страница 20: ...alue the current protection function will be activated and the compressor will stop 8 4 2 2 Outdoor fan running rules The outdoor unit will be run at different fan speed according to T4 For different...

Страница 21: ...T the compressor will stop when T1 TS T 1 5 the compressor will be on T is the programmed parameter of temperature compensation When the AC run in mute mode the compressor will run with low frequency...

Страница 22: ...utes in defrosting mode For MSABD 18HRDN1 MP0Q1W MSABE 23HRDN1 MP0Q1W MSABF 36HRFN1 MP0Q1W B models AC will enter the defrosting mode according to the value of temp of T3 and the value range of temp c...

Страница 23: ...f time 8 4 7 5 Timer off on The machine will turn off automatically when reaching the setting off time and then turn on automatically when reaching the setting on time 8 4 7 6 The timer function will...

Страница 24: ...and prevent breeding of mold 8 4 14 Follow me optional 1 If the indoor PCB receives the signal which results from pressing the FOLLOW ME button on remote controller the buzzer will emit a sound and t...

Страница 25: ...iry information Displaying code Meaning T1 T1 T1 temp T2 T2 T2 temp T3 T3 T3 temp T4 T4 T4 temp T2B Tb T2B temp TP TP TP temp TH TH TH temp Targeted Frequency FT Targeted Frequency Actual Frequency Fr...

Страница 26: ...1 139 E0 E1 E9 140 141 149 F0 F1 F9 150 151 159 Indoor fan speed Outdoor fan speed 0 OFF 1 2 3 4 Low speed Medium speed High speed Turbo For some big capacity motors 14 FF Actual fan speed Display val...

Страница 27: ...electricity power in capacitor Electrolytic Capacitors HIGH VOLTAGE CAUTION For other models please connect discharge resistance approx 100 40W or soldering iron plug between terminals of the electrol...

Страница 28: ...ort circuit 5 times O F4 Outdoor unit EEPROM parameter error 6 times O F5 Outdoor fan speed has been out of control 1 times P0 IPM malfunction or IGBT over strong current protection 2 times P1 Over vo...

Страница 29: ...27 Trouble shooting Use the remote controller If the unit does not respond to the remote the indoor PCB needs to be replaced if the unit does respond then the display board needs to be replaced...

Страница 30: ...D406 D402 D2 D1 1 CN505 CN7 C615 C614 C612 C606 C605 C 6 01 C 5 09 C 5 08 C 5 07 C 5 06 C 5 05 C 5 04 C 5 03 C412 C 4 10 C409 C408 C405 C404 C4 03 C402 C401 C322 C312 C 3 05 C 3 03 C302 C274 C273 C272...

Страница 31: ...05 IC404 R45 Q1 C15 C22 R21 R22 R28 R29 R33 E22 R3 R4 R121 C5 E6 R10 C28 C4 CN38 IC10 C79 C80 D7 C6 R148 R63 C506 R507 R508 E11 R106 C73 IC21 PC817 IC31 PC817 R175 R178 C409 IC402 C403 IC11 E402 D401...

Страница 32: ...Fuse T30A 250V connect to high and low pressure sensor connect to trmp sensor Fuse 5A 250V connect to earth CN23 reserve digital display button test report connect to detector CN43 5 CN43 1 CN41 CN42...

Страница 33: ...54 L IN2 N I N2 O U T F A N DC IC1 CN53 power supply connect to the terminal 208 230V AC CN54 CN51 CN52 PFC inductance terminal CN58 EATTH 210 300VDC Running CAPACITOR Voltage 290 330VDC standby CN55...

Страница 34: ...s Installation mistake PCB faulty Trouble shooting Yes Replace the indoor outdoor main PCB Power off then restart the unit 2 minutes later EEPROM a read only memory whose contents can be erased and re...

Страница 35: ...s later Is the error extinguished No Replace the outdoor main PCB Power on Is the error extinguished Replace the outdoor main PCB Power on Is the error extinguished Check the outdoor wiring connection...

Страница 36: ...voltage will move alternately between 25V to 25V If the outdoor unit has malfunction the voltage will move alternately with positive value While if the indoor unit has malfunction the voltage will be...

Страница 37: ...o crossing signal feedback for 4 minutes or the zero crossing signal time interval is abnormal Supposed causes Connection mistake PCB faulty Trouble shooting Check if the connections and power supply...

Страница 38: ...s Wiring mistake Fan ass y faulty Fan motor faulty PCB faulty Trouble shooting Power off then restart the unit 2 minutes later Shut off the power supply Rotate the fan by hand The unit operates normal...

Страница 39: ...ck GND 0V 4 White Vcc 14 17 5V 5 Yellow Vsp 0 5 6V 6 Blue FG 14 17 5V 2 Outdoor DC Fan Motor control chip is in outdoor PCB Power on and check if the fan can run normally if the fan can run normally t...

Страница 40: ...ampling voltage is lower than 0 06V or higher than 4 94V the LED will display the failure Supposed causes Wiring mistake Sensor faulty PCB faulty Trouble shooting Check the connection between temperat...

Страница 41: ...ulty Indoor PCB faulty System problems such as leakage or blocking Trouble shooting Is there cool air blowing out from indoor air outlet Yes Yes Check if T2 sensor is well fixed Correct the installati...

Страница 42: ...Compressor malfunction Trouble shooting Check the power supply Is it normal Check the connections and wires Is it well connection Stop the unit Check the power supply No Yes No Correct the connection...

Страница 43: ...n main PCB and compressor If the wires and connectors are broken Correct the connection or replace the wires and connectors Yes No IPM continuity check Check if the IPM terminal resistance values are...

Страница 44: ...42 For example P U P V Note The photos below are only for reference it s may be not same totally with the ones on your side...

Страница 45: ...43 P W N U...

Страница 46: ...44 N V N W...

Страница 47: ...ge rectifier No Check whether bridge rectifier is normal Check whether bridge rectifier is normal Check the wiring of reactor or inductance Check the wiring of reactor or inductance Reconnect the wiri...

Страница 48: ...ses Power supply problems System leakage or block PCB faulty Trouble shooting Check the power supply Check the connections and wires Stop the unit No Yes No Correct the connections or replace the wire...

Страница 49: ...radiator are fixed well For other models Check if the air flow system of indoor and outdoor units are obstructed Clear up the air inlet and outlet or the heat exchanger of indoor and outdoor units Ye...

Страница 50: ...or replace the wires and connectors No Check if the IPM installed correctly Correct the installation tighten the screws and apply silicon grease No IPM continuity check Check if the IPM terminal resis...

Страница 51: ...ytic 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 resis...

Страница 52: ...ge rectifier No Check whether bridge rectifier is normal Check whether bridge rectifier is normal Check the wiring of reactor or inductance Check the wiring of reactor or inductance Reconnect the wiri...

Страница 53: ...outdoor main board Replace outdoor main board No Replace low pressure protector Replace low pressure protector No Whether the low pressure protector is broken Whether the low pressure protector is bro...

Страница 54: ...from PCB measure the resistance value with a tester Temperature sensors Room temp T1 sensor Indoor coil temp T2 sensor Outdoor coil temp T3 sensor Outdoor ambient temp T4 sensor Compressor discharge t...

Страница 55: ...29078 117 243 0 38991 2 28 39 8239 38 100 5 62961 78 172 1 25423 118 244 0 37956 1 30 37 1988 39 102 5 39689 79 174 1 2133 119 246 0 36954 0 32 35 2024 40 104 5 17519 80 176 1 17393 120 248 0 35982 1...

Страница 56: ...2 422 4 25 222 8 36 97 34 32 76 169 7 82 116 241 2 357 3 27 211 4 37 99 32 94 77 171 7 566 117 243 2 294 2 28 200 7 38 100 31 62 78 172 7 321 118 244 2 233 1 30 190 5 39 102 30 36 79 174 7 086 119 246...

Страница 57: ...25 257 4 39 2 33 91 4 64 147 2 95 203 126 258 8 4 5 40 1 34 93 2 65 149 96 204 8 127 260 6 5 41 35 95 66 150 8 97 206 6 128 262 4 6 42 8 36 96 8 67 152 6 98 208 4 129 264 2 7 44 6 37 98 6 68 154 4 99...

Страница 58: ...ltage of P and N 208 240V 1 phase 3 phase 380 420V 3 phase In standby around 310VDC around 530VDC In operation With passive PFC module With partial active PFC module With fully active PFC module 200VD...

Страница 59: ...pressor checking Measure the resistance value of each winding by using the tester Position Resistance Value ASN98D22UFZ ASM135D23UFZ ATF235D22UMT ATF250D22UMT Blue Red 1 75 0 75 0 75 Blue Black Red Bl...

Страница 60: ...nd UVWN UVW and N Digital tester Normal resistance value Digital tester Normal resistance value Red Black Several M Red Black Several M P N U N U V V W W Red 4 Fan Motor Measure the resistance value o...

Страница 61: ...ODT IDT 75 23 89 85 29 44 95 35 105 40 56 115 46 11 PSI 70 59 119 113 117 125 147 PSI 75 63 124 120 126 132 155 PSI 80 67 135 129 132 140 162 F C ODT IDT 75 23 89 85 29 44 95 35 105 40 56 115 46 11 M...

Страница 62: ...1 37 33 2 78 0 56 27 23 2 78 5 17 13 8 33 10 56 PSI 55 439 413 367 330 302 PSI 65 471 435 386 368 339 PSI 75 489 457 403 381 362 F C ODT IDT 57 53 13 89 11 67 47 43 8 33 6 11 37 33 2 78 0 56 27 23 2 7...

Страница 63: ...e Procedures Remarks 1 Front panel How to remove the front panel 1 Pull the below side of the panel toward you and remove screw of the cover 2 Release the connector of the display ass y 3 Release the...

Страница 64: ...the room temp sensor T1 Remove the two screws for the ground connection 3 Remove the fixing screw 4 Pull out the coil temp sensor 5 From the side direction open the electronic control box cover fixin...

Страница 65: ...emove the electrical parts from procedure 2 disassemble the pipe holder at the rear side of the unit 2 Remove the screw on the evaporator at the fixed plate 3 Remove the two screws on the evaporator a...

Страница 66: ...n motor 1 Remove the front panel electrical parts and evaporator following procedure 1 3 2 Remove the two screws and remove the fixing board of fan motor 3 Remove the fixing screw 4 Pull out the fan m...

Страница 67: ...remove the panel plate 1 Stop operation of the air conditioner and turn OFF the power breaker 2 Remove the big handle first then remove the top cover 3 screws 3 Remove the screws of front panel 7 scr...

Страница 68: ...the panel plate following procedure 1 2 Remove the nut fixing the fan and remove the fan 3 After remove the top cover Unfix the hooks and then open the electronic control box cover 2 3 compressor T3...

Страница 69: ...67 4 Disconnect the connector for fan motor from the electronic control board 5 Remove the four fixing screws of the fan motor then remove the motor 5...

Страница 70: ...r finish work of item 1 and item 2 remove the connector for the compressor 2 Pull out the two blue wires connected with the four way valve 3 Pull out connectors of the condenser coil temp sensor T3 ou...

Страница 71: ...69 4 Disconnect the electronic expansion valve wire from the control board 5 Remove the ground wires 6 Remove the wires 1 2 3 7 Then remove the electronic control box 5 6...

Страница 72: ...pipe 5 Then the four way valve ass y can be removed The picture of four way valve may be different from the one on your side 5 Compressor How to remove the compressor 1 After perform work of item1 3...

Страница 73: ...ditioner and turn OFF the power breaker 1 Remove the big handle first and then remove the top panel 3 screws 3 Remove the screws of front panel 6 screws 4 Remove the screws of the right side panel 8 s...

Страница 74: ...ter remove the panel plate following procedure 1 remove the hex nut fixing the fan and then remove the fan 2 Unfix the hooks and then open the electronic control box cover 1 2 compressor T3 T4 T5 sens...

Страница 75: ...Remove the four fixing screws of the fan motor Then remove the fan motor 3 Electrical parts How to remove the electrical parts 1 After finish work of item 1 and item 2 remove the connectors for the co...

Страница 76: ...enser coil temp sensor T3 outdoor ambient temp sensor T4 and discharge temp sensor TP 4 Disconnect the electronic expansion valve wire 5 Remove the grounding screw 6 Remove the Wires 1 2 3 Then remove...

Страница 77: ...pipe Then the four way valve ass y can be removed The picture of four way valve may be different from the one on your side 3 4 5 Compressor How to remove the compressor 1 After perform work of item1 3...

Страница 78: ...anel plate 1 Stop operation of the air conditioner and turn OFF the power breaker 2 Remove the top panel 3 screws 3 Remove the screws of front panel 9 screws 4 Remove the screws of the right side pane...

Страница 79: ...remove the hex nut fixing the fan and then remove the fan 2 After remove the top cover Unfix the hooks and then open the electronic control box cover 1 2 T3 T4 T5 sensor wire Motor wire Electronic exp...

Страница 80: ...electronic control board 4 Remove the four fixing screws of the fan motor Then remove the fan motor 3 Electrical parts How to remove the electrical parts 1 After finish work of item 1 and item 2 remov...

Страница 81: ...blue wires connected with the four way valve 3 Pull out connectors of the condenser coil temp sensor T3 outdoor ambient temp sensor T4 and discharge temp sensor TP 4 Disconnect the electronic expansi...

Страница 82: ...80 5 Remove the electric heaters 6 Remove the grounding screw 7 Remove the Wires 1 2 3 or L1 L2 S Then remove the electronic control box 5 7...

Страница 83: ...pipe Then the four way valve ass y can be removed The picture of four way valve may be different from the one on your side 3 5 Compressor How to remove the compressor 1 After perform work of item1 3...

Страница 84: ...onditioner and turn OFF the power breaker 2 Remove the big handle first then remove the top cover 7 screws 3 Remove the screws of front panel 11 screws 4 Remove the screws of the right side panel 13 s...

Страница 85: ...ass y 1 After remove the panel plate following procedure 1 2 Remove the nut fixing the fan and remove the fan 3 Unfix the hooks and remove the screws then open the electronic control box cover 2 3 fa...

Страница 86: ...nector for fan motor from the electronic control board 5 Remove the four fixing screws of the fan motor then remove the motor 5 4 T3 T4 T5 sensor Pressure switch Compressor wire Electronic expansion 4...

Страница 87: ...r finish work of item 1 and item 2 remove the connector for the compressor 2 Pull out the two blue wires connected with the four way valve 3 Pull out connectors of the condenser coil temp sensor T3 ou...

Страница 88: ...ct the pressure switch connector 5 Disconnect the electronic expansion valve wire from the control board 6 Remove the ground wires 7 Remove the wires 1 2 3 or L1 L2 S Then remove the electronic contro...

Страница 89: ...pipe 5 Then the four way valve ass y can be removed The picture of four way valve may be different from the one on your side 5 Compressor How to remove the compressor 1 After perform work of item1 3...

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