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Midea MCHS-09PSH1, Руководство по обслуживанию

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CONTENTS 

1. Precaution .................................................................................................................................................... 3

 

1.1 Safety Precaution .......................................................................................................................... 3

 

1.2 Warning ......................................................................................................................................... 3

 

2. Model list ...................................................................................................................................................... 6

 

3. Dimension .................................................................................................................................................... 7

 

3.1 Indoor Unit ..................................................................................................................................... 7

 

3.2 Outdoor Unit .................................................................................................................................. 9

 

4. Refrigerant Cycle Diagram ....................................................................................................................... 10

 

5. Wiring Diagram ........................................................................................................................................... 11

 

5.1 Indoor Unit .................................................................................................................................... 11

 

5.2 Outdoor Unit ................................................................................................................................ 13

 

6 Installation Details ...................................................................................................................................... 15

 

6.1 Wrench torque sheet for installation ........................................................................................... 15

 

6.2 Connecting the cables ................................................................................................................ 15

 

6.3 Pipe length and the elevation ..................................................................................................... 15

 

6.4 Installation for the first time ......................................................................................................... 16

 

6.5 Adding the refrigerant after running the system for many years ................................................ 16

 

6.6 Re-installation while the indoor unit need to be repaired ........................................................... 17

 

6.7 Re-installation while the outdoor unit need to be repaired ......................................................... 18

 

7. Operation Characteristics ......................................................................................................................... 19

 

8. Electronic function .................................................................................................................................... 20

 

8.1 Abbreviation ................................................................................................................................ 20

 

8.2 Display function ........................................................................................................................... 20

 

8.3 Main Protection ........................................................................................................................... 21

 

8.4 Operation Modes and Functions ................................................................................................. 22

 

9. Troubleshooting ......................................................................................................................................... 28

 

9.1 Indoor Unit Error Display ............................................................................................................. 29

 

9.2 Outdoor unit error display ........................................................................................................... 30

 

9.3 Diagnosis and Solution ............................................................................................................... 34

 

10 Disassembly Instructions ........................................................................................................................ 63

 

10.1 Indoor unit ................................................................................................................................. 63

 

10.2 Outdoor unit .............................................................................................................................. 67

 

Содержание MCHS-09PSH1

Страница 1: ...Mission 3D Inverter Series Service Manual 2016 MBSUL A 1604...

Страница 2: ...or the first time 16 6 5 Adding the refrigerant after running the system for many years 16 6 6 Re installation while the indoor unit need to be repaired 17 6 7 Re installation while the outdoor unit n...

Страница 3: ...ges 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 ins...

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: ...y Indoor units Outdoor units 9k 115V MEHS 09PSH1 MCHS 09PSH1 9k MEHSU 09PHH2 MCHSU 09PHH2 12k 115V MEHS 12PSH1 MCHS 12PSH1 12k MEHSU 12PHH2 MCHSU 12PHH2 18k MEHSU 18PHH2 MCHSU 18PHH2 24k MEHSU 24PHH2...

Страница 7: ...el W D H 9k 115V 230V 31 89 810 7 87 200 11 81 300 12k 115V 230V 31 89 810 7 87 200 11 81 300 18k 42 91 1090 9 25 235 13 31 338 24k 42 91 1090 9 25 235 13 31 338 30k 54 15 1350 10 71 272 14 37 365 36k...

Страница 8: ...For 9k 12k For 18k 24k For 30k 36k...

Страница 9: ...in mm D in mm H in mm W1 in mm A in mm B in mm 9k 115V 30 31 770 11 81 300 21 85 555 33 07 840 19 2 487 11 73 298 12k 115V 31 50 800 13 11 333 21 81 554 34 25 870 20 24 514 13 39 340 9k 230V 31 50 80...

Страница 10: ...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 OUTDOOR CHECK...

Страница 11: ...5 Wiring Diagram 5 1 Indoor Unit MEHS 09PSH1 MEHS 12PSH1 MEHSU 09PHH2 MEHSU 12PHH2...

Страница 12: ...MEHSU 18PHH2 MEHSU 24PHH2 MEHS 30PSH2 MEHS 36PSH2...

Страница 13: ...5 2 Outdoor Unit MCHS 09PSH1 MCHS 12PSH1 MCHSU 09PHH2 MCHSU 12PHH2 MCHSU 18PHH2...

Страница 14: ...MCHSU 24PHH2 MCHS 30PSH2 MCHS 36PSH2...

Страница 15: ...pliance Amps AWG Wire Size 10 18 13 16 18 14 25 12 30 10 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...

Страница 16: ...the vacuum pump 4 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 14 5Psi I...

Страница 17: ...rench 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...

Страница 18: ...um pump 5 Disconnect the charge hose from the vacuum pump 2 Refrigerant charging Procedure 1 Connect the charge hose to the charging cylinder open the 2 way valve and the 3 way valve Connect the charg...

Страница 19: ...115V 9k 230V 12k 230V 18k 24k 30k 36k Operating Range Cooling Outdoor Min Max DB F C 4 122 20 50 4 122 20 50 4 122 20 50 4 122 20 50 4 122 20 50 4 122 20 50 4 122 20 50 4 122 20 50 Indoor Min Max DB F...

Страница 20: ...Turbo or Silence feature is activated Dispalys for three seconds when Timer OFF is set Dispalys for three seconds when Fresh Swing Turbo or Silence feature is cancelled Dispalys under deforsting opera...

Страница 21: ...working 8 3 6 Indoor fan delayed open function When the unit starts up the louver will be active immediately and the indoor fan will open 7s later If the unit runs in heating mode the indoor fan will...

Страница 22: ...ction 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 outdoor units the fan...

Страница 23: ...4 3 3 Indoor fan running rules When the compressor is on the indoor fan can be set to high med low auto mute When indoor unit coil temp is low the anti cold air function will start and indoor fan mot...

Страница 24: ...ode 8 4 6 Forced operation function Forced cooling mode The compressor and outdoor fan keep running and the indoor fan runs at low speed After running for 30 minutes AC will turn to auto mode with 24...

Страница 25: ...8 4 8 8 Heating optional When the compressor is running the indoor fan motor will run without anti cold air function When the compressor is off the indoor fan motor is off...

Страница 26: ...y 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 A...

Страница 27: ...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 value...

Страница 28: ...lectricity 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 electroly...

Страница 29: ...been out of control 1 times P0 IPM malfunction or IGBT over strong current protection 2 times P1 Over voltage or over low voltage protection 3 times P2 High temperature protection of IPM module or co...

Страница 30: ...1 C401 R 403 C411 C40 C50 D 403 R401 R405 R 406 R 404 E404 D402 D404 C4 08 C402 E403 R407 R4 08 C404 C1 10 E409 E4 01 R402 C405 10 9 7 6 5 4 3 1 T401 C406 C407 D13 D14 E406 E407 E408 E502 E503 E504 D...

Страница 31: ...612 C606 C605 C6 01 C 509 C 508 C 507 C5 06 C5 05 C5 04 C5 03 C412 C4 10 C409 C408 C405 C404 C4 03 C402 C401 C322 C312 C 305 C3 03 C302 C274 C273 C272 C271 C 133 C132 C131 C130 C129 C128 C127 C126 C12...

Страница 32: ...display 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 CN...

Страница 33: ...4 L IN2 N IN2 OUTFAN 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 TO MAIN...

Страница 34: ...e feedback from EEPROM chip Supposed causes Installation mistake PCB faulty Trouble shooting EEPROM a read only memory whose contents can be erased and reprogrammed using a pulsed voltage For the loca...

Страница 35: ...tion E1 Error Code E1 Malfunction decision conditions Indoor unit does not receive the feedback from outdoor unit during 110 seconds and this condition happens four times continuously Supposed causes...

Страница 36: ...ultimeter to test the DC voltage between 2 port and 3 port of outdoor unit The red pin of multimeter connects with 2 port while the black pin is for 3 port When AC is normal running the voltage will m...

Страница 37: ...nd solution E2 Error Code E2 Malfunction decision conditions When PCB does not receive zero crossing signal feedback for 4 minutes or the zero crossing signal time interval is abnormal Supposed causes...

Страница 38: ...E3 Error Code E3 F5 Malfunction decision conditions When indoor fan speed keeps too low 300RPM for certain time the unit will stop and the LED will display the failure Supposed causes Wiring mistake...

Страница 39: ...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 the...

Страница 40: ...r diagnosis and solution E5 Error Code E4 E5 F1 F2 F3 Malfunction decision conditions If the sampling voltage is lower than 0 06V or higher than 4 94V the LED will display the failure Supposed causes...

Страница 41: ...essor just starts running as Tcool In the beginning 5 minutes after the compressor starts up if T2 Tcool 2 C Tcool 35 6 F does not keep continuous 4 seconds and this situation happens 3 times the disp...

Страница 42: ...F0 Error Code F0 Malfunction decision conditions An abnormal current rise is detected by checking the specified current detection circuit Supposed causes Power supply problems System blockage PCB faul...

Страница 43: ...Malfunction decision conditions When the voltage signal that IPM send to compressor drive chip is abnormal the display LED will show P0 and AC will turn off Supposed causes Wiring mistake IPM malfunc...

Страница 44: ...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: ...P W N U...

Страница 46: ...N V N W...

Страница 47: ...For 24K 36K At first test the resistance between every two ports of U V W of IPM and P N If any result of them is 0 or close to 0 the IPM is defective Otherwise please follow the procedure below...

Страница 48: ...decision conditions An abnormal voltage rise or drop is detected by checking the specified voltage detection circuit Supposed causes Power supply problems System leakage or block PCB faulty Trouble sh...

Страница 49: ...P2 Error Code P2 Malfunction decision conditions If the sampling voltage is not 5V the LED will display the failure Supposed causes Installation mistake Power supply problems System leakage or block...

Страница 50: ...inverter compressor drive is detected by a special detection circuit including communication signal detection voltage detection compressor rotation speed signal detection and so on Supposed causes Wir...

Страница 51: ...tic 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 resist...

Страница 52: ...For 24K 36K At first test the resistance between every two ports of U V W of IPM and P N If any result of them is 0 or close to 0 the IPM is defective Otherwise please follow the procedure below...

Страница 53: ...onnect the plug Measure the resistance of the low pressure protector If the protector is normal the value is o Yes Yes Connect it well Replace outdoor main board No Replace low pressure protector No W...

Страница 54: ...rom 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 te...

Страница 55: ...078 117 243 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 34...

Страница 56: ...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: ...7 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 99 210 2...

Страница 58: ...tage 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 200VDC...

Страница 59: ...h winding by using the tester Position Resistance Value ASN98D22UFZ ASM98D32UFZ ATM115D43UFZ2 Blue Red 1 57 20 68 2 3 20 68 1 78 20 68 Blue Black Red Blue Position Resistance Value ATF235D22UMT ATF250...

Страница 60: ...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 61: ...7 9 1 10 7 BAR 80 67 9 3 8 9 9 1 9 6 11 2 F C 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...

Страница 62: ...31 5 27 8 26 3 24 9 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 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 OD...

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

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 fixing...

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

Страница 66: ...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 mo...

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 scre...

Страница 68: ...How to remove the fan ass y 1 After remove the Air outlet grille 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 bo...

Страница 69: ...ct 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 compressor T3 T4 T5 sensor Motor Electronic expansion valve 4...

Страница 70: ...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 outd...

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

Страница 72: ...ipe 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 Re...

Страница 73: ...the air conditioner and turn OFF the power breaker 2 Remove the big handle first and then remove the top panel 3 screws 3 Remove the screws of front panel 7 screws 4 Remove the screws of the right si...

Страница 74: ...to remove the fan ass y 1 After remove the Air outlet grille 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 contro...

Страница 75: ...the connector for fan motor from the electronic control board 4 Remove the four fixing screws of the fan motor Then remove the fan motor 3 4 compressor T3 T4 T5 sensor Motor Electronic expansion valve...

Страница 76: ...item 2 remove the connectors 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 outdoor ambient temp sensor T...

Страница 77: ...rcuit 3 Remove the screw of the coil and then remove the coil 4 Detach the welded parts of four way valve and pipe 5 Then the four way valve ass y can be removed The picture of four way valve may be d...

Страница 78: ...compressor on bottom plate 4 Lift the compressor from the base pan assembly 3...

Страница 79: ...plate 1 Stop operation of the air conditioner and turn OFF the power breaker 2 Remove the top panel 7 screws 3 Remove the screws of front panel 9 screws 4 Remove the screws of the right side panel 10...

Страница 80: ...to remove the fan ass y 1 After remove the Air outlet grille 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 contro...

Страница 81: ...e electronic control board 4 Remove the four fixing screws of the fan motor Then remove the fan motor 3 4 T3 T4 T5 sensor wire Motor wire Electronic expansion valve Compressor wire 4 way valve wire El...

Страница 82: ...work of item 1 and item 2 remove the connectors for the compressor and reactor 2 Pull out the two blue wires connected with the four way valve 3 Pull out connectors of the condenser coil temp sensor T...

Страница 83: ...4 disconnect the electronic expansion valve wire 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 4 5 7...

Страница 84: ...ipe 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 3 5 Compressor How to remove the compressor 1 After perform work of item1 3...

Страница 85: ...of the air conditioner and turn OFF the power breaker 2 Remove the big handle first then remove the top panel 7screws 3 Remove the screws of the front panel 11 screws 4 Remove the screws of the right...

Страница 86: ...remove the fan ass y 1 After remove the Air outlet grille remove the hex nut fixing the fan and then remove the fan 2 After remove the top cover Unfix the hooks and screws then open the electronic con...

Страница 87: ...lectronic control board 4 Remove the four fixing screws of the fan motor Then remove the fan motor 3 Electric pipe heater and Crankcase electric Heater wire Motor wire Electronic expansion Valve wire...

Страница 88: ...sor and the compressor crankcase heater and the chassis electric heater 2 Pull out the two blue wires connected with the four way valve 3 Pull out connectors of the condenser coil temp sensor T3 outdo...

Страница 89: ...w to remove the four way valve 1 Perform work of item1 3 2 Recover refrigerant from the refrigerant circuit 3 Remove the screw of the coil and then remove the coil 4 Detach the welded parts of four wa...

Страница 90: ...form work of item1 3 Recover refrigerant from the refrigerant circuit 2 Remove the discharge pipe and suction pipe with a burner 3 Remove the hex nuts and washers fixing the compressor on bottom plate...

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