Part 4 R410A Outdoor unit
Contents
1. LO EM E Es a 95 3 ES 600 Dimensions Outdoor Units 91 Service Space MCAC UTSM 2007 01 2 Service Space Wall or obstacle Deep foundation 600mm is necessary between 2 outdoor units 600mm N M10 bolt 4pieces per unit Distance between foot bolts 12X20 elliptical hole Regarding D E please refer to outline and dimension of outdoor unit 92 Outdoor Units MCAC UTSM 2007 01 3 Piping Systems Piping System discharge temp sensor T5 outdoor heat exchanger M Throttle capiliary condensor temp sensor 1 N Indoor heat D filter as filter excha nger EXV ambient temp sensor DTI Room temp sensor High pressure valve stop valve up 4 way valve compressor Low pressure valve 0 accumulator Outdoor unit evaporator temp sensor Indoor unit Outdoor Units 93 Wiring Diagrams MCAC UTSM 2007 01 4 Wiring Diagrams MOU 18HRDN1 vas 2204749006 uc at Din 12 pur AULA aes xc Ae SS esana2. 2 E Parts box 13 2 Expansion valve coil 1 Outdoor Units 101 Exploded Views MCAC UTSM 2007 01 6 o 10 182 Condenser connection pipe Ass y 2 123 13 igh pressure valve Ass y 24 Holder for fan motor 1 MOU 36HRDN1 Separate board 20 19 da 152 16 1 16 1 142 143 432 134 12 11 10 v 102 Outdoor Units MCAC UTSM 2007 01 Exploded Views No Part pee Awy Name Quantity No Part Name 13 1 High pressure valve Ass y Quantity 2 1 E Parts Ass y 133 Electron Throttle Valve Compressor Capacitor 75A inverter module Ass y 14 Fourway valve Ass y 3 143 Fourway valve 1 4 15 Discharger pipe Ass y 1 7 Valev protect cover 18 1 jmeppasy 1 21 Fromuctasy Jem a z Ay 1 aaa 1 25 Condenser temp sensor 1 11 Rear Right clapboardAwy 1 24 outdoor Temp sensor 12 1 25 jishargetsmpsenser 13 High pressure valve 1 MOU 48HRDN1 MOU 60HRDN1 Ouidoor Units 103 Exploded View MCAC UTSM 2007 01 19 184 171 162 161 15 141 13 12 11 Part Ouantity No Part Name Ouantity 1 141 High Pressure Valve 1 2 E parts assy 1 142 lectric expansive valve 1 2 1 Main control board a 143 lectric Expansion loop 1 2 4 Inverter control board 0100 16 valve suba
3. pressure switch and main board works well Pressures switch work well piping filter accumulator 4 way and EXV work well Is pipe blocked drop refrigerant blow pipe recharge with refrigerant Outdoor Units 111 Troubleshooting MCAC UTSM 2007 01 Display Malfunction or Protection P2 Low pressure protection Outdoor master unit display P2 indoor unit alarm lamp flash slowly OK High low pressure Error disappear stop valve opened Low pressure range during unit operating is Charge refrigerant correct well The wire between pressure No switch and main board works Error disappear No Pressures gt Replace pressure switch gt Error disappear work well piping C filter accumulator 4 way and Error disappear EXV work well Is pipe blocked drop refrigerant blow pipe recharge with refrigeranto 112 Outdoor Units MCAC UTSM 2007 01 Troubleshooting Display Malfunction or Protection P3 Compressor current protection Check the resistance of compressor normally U and V is 1 ohm U and W is 1 ohm V and W is 1ohm The compressor is defective No Check the refrigerant circulation volume and pressure Yes Recharge the refrigerant If refrigerant circulation volume and pressure is OK change the outdoor main PCB Outdoor
4. 0V 198 255 0 20 28 0 15KW 0 72 MOU 36HRDN1 50 380V 342 418 6A 15A 28A 7 8A 0 307KW 1 4A MOU 48HRDN1 50 380V 342 418 6A 15A 28A 7 8A 0 15KW 0 82 MOU 60HRDN1 50 380V 342 418 6A 15A 28A 7 8A 0 15KW 0 82 Symbols MCA Min Circuit Amps Total Over Current Amps MFA Max Fuse Amps MSC Max Starting Current RLA Rated Locked Current Outdoor Units 97 Sound Levels FLA Full Load Amps Kw Rate Motor Notes 1 RLA is based on the following conditions Indoor temp 27 C DB 19 C WB Outdoor temp 35 C DB Voltage range gt WON 7 Sound Levels TOCA means the total value of each OC set MSC means the current during the starting of compressor Maximum allowable voltage variation between phase is 2 Selection wire size based on the larger value of MCA or TOCA MFA is used to select the circuit breaker and the ground fault circuit interrupter earth circuit breaker Over all Model Noise level dB A MOU 18HRDN1 48 MOU 24HRDN1 52 MOU 36HRDN1 54 MOU 48HRDN1 58 MOU 60HRDN1 60 Outdoor unit Microphone A height 1 0m The point A is in the middle of the whole outdoor panel Octave Band Level MCAC UTSM 2007 01 Heat pump Cooling only 98 Outdoor Units MCAC UTSM 2007 01 18 000 BTU H 0 0002 u bar Sound pressure level dB OdB s
5. AN MOTOR CRANKCASE HEATING HPRO EEES m TA H PRO 1 m CONTACTOR M lerciercz PTC ELEMENT rer REACTOR RESI RES F TRANSFORMOR TEMPERATURE SENSOR IN OUTDOOR AMBIENT 1 TEMPERATURE SENSOR GAS TEMPERATURE SENSOR 1 51 53 CONNECTORS XPIXP3 CONNECTORS 4 aavay TERMINAL TERMINAL 1 LI 5 Operation Limits Heat pump 96 Outdoor Units MCAC UTSM 2007 01 Operation Limits Cooling Heating 30 27 E 45 T 7 S S Y 5 7 a 8 28 10 p 2 YA o WA 5 5 D E E 5 Y S 5 5 3 8 E z S Y 10 5 5 0 5 5 5 8 A o o v 9 8 5 o 9 o VA 9 5 S 3 a 5 6 Y 2 E E o oe A O g DE og E 9 0 o 10 Go 2 5 8 3 15 5 10 5 20 25 30 10 5 20 25 30 Indoor WB Indoor temperature C DB Note These figure assume the following operating condition Equivalent Pipe length 7 5m Height difference Om 6 Electric Characteristics Units Power Supply Compressor Outdoor fan motor Model Power Hz Voltage Min Max MCA MFA MSC RLA FLA MOU 18HRDN1 50 220 240V 198 255 0 20 28 0 129KW 0 59 MOU 24HRDN1 50 220 24
6. Correct the problem or replace the EXV Remark Test digital discharge temperature outdoor condenser temperature 2 Test system pressure 8 High digital discharge temperature is likely owing to the lack of refrigerant air leakage or system blockade Check the above items respectively to solve the problem 3 Condensor high temperature protection owes to the overcharge of refrigerant air leakage or bad ventilation and heat emission conditions Outdoor Units 115 Troubleshooting MCAC UTSM 2007 01 Display LED flashes for thirteen times Malfunction or Protection P6 Module protection Check the connectors CN4 CN1 in outdoor PCBs Is connection to connector good Whether the input voltage range is 380 415V Is the wires to compressor right Unplug the wiring to compressor then restart whether display the Change IPM board just model 36000 48000 60000 Change main board Repair connector or Correct voltage Check compressor 1 Turn on the unit in cooling or heating in different season use a frequency meter to test the frequency in one of the three wires to compressor if there is frequency in wires but compressor do not run the compressor is defective 2 Between U V W three terminals the resistance is 1 116 Outdoor Units
7. MCAC UTSM 2007 01 Dimensions Service Piping Diagrams Wiring Diagrams Operation Limits Electric Characteristics Sound Levels Exploded View Troubleshooting Outdoor Units Part 3 Outdoor Units Outdoor Units 89 MCAC UTSM 2007 01 Dimensions 1 Dimensions 1 1 MOU 18HRDN1 4 g GH EE 860 i 590 EEA 4 H d a z5 1 3 MOU 36HRDN1 Outdoor Units MCAC UTSM 2007 01 990 E 3 8 ES 1 4 MOU 48HRDN1 MOU 60HRDN1 940
8. POETA 94 Outdoor Units MCAC UTSM 2007 01 MOU 36HRDN1 Wiring diagrams BLUE RAX RED gt ed CAPACITANCE ELECTRIC EXPANSIVE JA LV UTOOOR FAN MOTOR IANKCASE HEATING PRESSURE SMT 8 ELEMEN REACTOR RECI REC DISCHARGE RESISTANCE SAVAY VALVE E 8 TDOOR AMBIENT MPERATURE SENSCH d 3 cow CAPI evo HGH PRESSURE SWITCH Lomo Low PRESSURE smrten ee PICELEMENT xstxs3 CONNECTORS d Hl 00 TERM n SMAL em E 2292 jons HEAT SV se ve gpl ES xn xn CAPI OUTDOOR POWER TO COMMUNICATION BUS ee T2 OUTDOOR PONER COMMUNICATION BUS COMPRESSOR TANCE CURRENT DETECTOR CAPT CAPS CT1 FANIFAN2 H PRO 2 92 om _AC CONTACTOR CONTACTOR REACTOR RECTIMIER DISCHARGE RESISTANCE REST RES RANS 1 TRAN E de ds TPIPE TEMPERATURE AMBIENT TEMPERATURE 2 B E elg 7 als 3 GA AY TERMINAL M YA RMINA Outdoor Units 95 Wiring Diagrams MCAC UTSM 2007 01 MOU 60HRDN1 1 1 mawaa l CAPI CAPS CAPACITANCE CURRENT DETECTOR ELECTRIC EXPANSIVE m Des FANIFAN2 OUTDOOR F
9. Units 113 Troubleshooting MCAC UTSM 2007 01 Display Malfunction or Protection P4 Compressor discharge temperature protection When Compressor discharge temp is more than 105 C the unit will stop and unit runs again when Compressor discharge temp less than 90 C Is the Compressor discharge temp more than 105 Yes No VIUA No Is the wiring connection is right between Compressor discharge E wre Correct the wiring connection temp sensor and PCB according to Wiring diagrams Yes No Replace the Compressor discharge Is the resistance of remp sensor is right Replace the outdoor main board Correct the voltage and freguency No Check whether the voltage and freguency is normal Check whether the refrigerant is leakage Stop leaking and replenish refrigerant 116 Outdoor Units MCAC UTSM 2007 01 Troubleshooting Display Malfunction or Protection P5 Condensor high temperature protection When Condensor high temp is more than 65 C the unit will stop and unit runs again when outdoor pipe temp less than 52 C Yes Is the Condensor high temp more than 65 No Is the Condensor high temp sensor right according to the annex 1 Yes Replace the outdoor main board Replace the outdoor pipe temp sensor The outdoor temp is too high More than 43 The system is blocked Or EXV is invalid
10. nual NO Change main board Display Malfunction or Protection E3 Communication malfunction between DSP outdoor units E3 outdoor unit Change main board 108 Outdoor Units MCAC UTSM 2007 01 Troubleshooting Display Malfunction or Protection E4 T4 amp T3 temperature sensor malfunction Is connection to connector of outdoor condenser s middle temp sensor T3 and outdoor ambient temperature sensor T4 good Repair connector Check the resistance of the temp sensor according to Annex 1 No Replace the sensor Is the resistance normal Outdoor main board Outdoor Units 109 Troubleshooting MCAC UTSM 2007 01 Display Malfunction or Protection E5 Compressor Voltage protection Check the voltage of power supply if the voltage is about 172 265V Model 18000 and 24000 or 297 458V Model 36000 48000 60000 Replace the filter board or Correct the voltage in this range power board Replace the outdoor main board 110 Outdoor Units MCAC UTSM 2007 01 Troubleshooting Display Malfunction or Protection 1 High pressure protection Outdoor master unit display indoor unit alarm lamp flash slowly OK High low pressure stop valve opened completely or not High pressure range No during unit operating is Drop redundant refrigerant correct Yes The wire between
11. ound 63 0 0002 bar Sound pressure level dB OdB 0 0002 bar Sound pressure level dB OdB Audibility limits of continuous white 125 250 500 1000 2000 4000 8000 Octave band center frequency Hz 36 000BTU H 3 phase 63 60 Audibility limits of white sound 125 250 500 1000 2000 4000 8000 ctave band center frequency Hz 000BTU H Audibility limits of contin sound uous white 63 125 250 500 1000 2000 4000 8000 Octave band center frequency Hz 0 0002 u bar Sound pressure level dB OdB 0 00021 bar Sound pressure level dB 0dB Sound Levels 24 000BTU H Audibility limits of continuous white sound 63 125 250 500 1000 2000 4000 8000 Octave band center frequency Hz 48 000BTU H 3 phase Audibility limits of continuous white sound 63 125 250 500 1000 2000 4000 8000 Octave band center frequency Hz Outdoor Units 99 Exploded Views MCAC UTSM 2007 01 8 Exploded Views MOU 18HRDN1 No Part Name Quantity 151 inlet pipe Ass y 152 Outlet pipe Ass y 1 1 1 16 ourway valve Ass y 1 1 1 1 16 3 Fourway valve coil 100 Outdoor Units MCAC UTSM 2007 01 Exploded Views 5 12 1 18 Holder for fan motor 1 15 Condenser Ass y 1 gt CN 10 11 12 1 12 2 12 13 3 12 3 Part M Part Name Quantity
12. ssembly 1 1 1 1 1 1 3 Rear net clip 1 161 valve subassembly 5 Fan Motor Holder a 163 our way Valve Solenoid 6 7 ele 5 O 09 Us 5 a iguid pipe valve 18 Tube gt Separating board 104 Outdoor Units MCAC UTSM 2007 01 Exploded Views 19 Fluid tank 8 installation plate for valves 1 D 2 102 fouterpips eva 1 2 pwa 1 1 1 1 103 Input pipes ofEvaporarorAssy 1 etnie E x paea 13 Kabinenprom Sie 1 25 _piscarge emp sensor 14 High Pressure Valve Ass y Ri Outdoor Units 105 Troubleshooting 8 Troubleshooting 8 1 Indoor unit s malfunction indication MCAC UTSM 2007 01 Run lamp Timer lamp Defrost lamp Alarm lamp Manual Switch No Type Contents LED Lamp flash Remarks 1 malfunction evaporator check point 15 abnomal Run lamp After the malfunctions room temp sensor is abnormal flashes disappear it resume at2 5Hz automatically 2 malfunction Indoor outdoor unit com Thetimerlamp After the malfunctions unication is abnormal flashes disappear it resume at2 5Hz automatically 3 malfunction Condenser sensor check point is abnormal or All the indoor After the malfunctions outdoor temp sensor is abnormal alarm disappear it res
13. ume lamps flash at automatically 0 5Hz 4 malfunction Water level switch is abnormal Alarm lamp If the malfunctions can t flashes be solved in three min all at 2 5Hz the indoor alarm lamps flash at 0 5Hz Turn off the powerto restore 106 Outdoor Units MCAC UTSM 2007 01 8 2 Outdoor unit s LED indication Troubleshooting Diaplay Content of malfunction or protection EO EEPROM Malfunction E2 Communication malfunction between outdoor IC and indoor IC ES Communication malfunction between outdoor IC and DSP 4 Malfunction of out ambient temp sensor E5 Voltage protection of compressor P1 High pressure protection P2 Low pressure protection P3 Current protection of compressor P4 Compressor discharge temperature protection P5 High temp protection of ourdoor condenser P6 Module protection or top temp protection Display Malfunction or Protection EO EEPROM Malfunction Install the EERROM again Does trouble occur again Trouble is solved Replace the outdoor main board Display Malfunction or Protection Communication malfunction between indoor outdoor units Outdoor Units 107 Troubleshooting MCAC UTSM 2007 01 E2 outdoor unit Check signal wiring Correct the polarity of the signal Wrong polarity Wrong wiring wiring Shield cable Correct this problem according Earthing to ma
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