Technical service manual 2006
Contents
1. Display Corresponding mode 0 Off 1 Cooling mode 2 Heating mode 2 Fan state Display Corresponding mode 0 Off 1 Low fan 2 High fan 23 3 Opening degree of EXV Opening degree equals the display data times 8 4 Number of indoor unit The indoor unit that can communicate with outdoor unit normally 9 12 Outdoor fan speed control There is one fan with two speed the fan speed is controlled according ambient temp After the compressor stop 30 seconds later the fan stop When cooling gt 27 High speed Ambient temp rise lt 27 Low speed Ambient gt 25 High speed temp decline lt 25 Low speed When heating gt 14 Low speed Ambient temp rise lt 14 High speed Ambient gt 12 Low speed temp decline lt 12 High speed 9 13 Oil return function If operation frequency is lower than 54Hz in 2 hours consecutively it will be increased to 62Hz for 3 minutes Then it recovers to the former operation frequency 10 Troubleshooting 10 1 Safety Because of there are capacitors in PCB and relative circuit in outdoor unit even shut down the power supply electricity power still are kept in capacitors do not forget to discharge the electricity power in capacitor The value of resistance is about 1500 ohm to 2000 ohm 24 Resistance The voltage in P3 and P4 in outdoor PCB is high voltage about 310V The voltage in P5 and P6 in outdoo2. INDOOR PIPE GUT PIPE OUT PIPE OUT INDOOR TEP A TEMP B BE KA NA NZ KA KA NZ 4 WAYS VALVE 16 EXCHANGER EP A gt J Prorac or BLACK TEMP SENSOR D RE BE VISI PAN am 7 4 Outdoor unit M4OA 27HRIN1 ELECTRONIC ELECTRONIC ELECTRONIC ELECTRONIC EXPANSIVE EXPANSIVE EXPANSIVE EXPANSIVE VALVE A VALVEB VALVEC VALVED C C C Dawa LAX 5 JSENSOR o WSA ANEC VALVC TEP Tae Pi VALVES V W mire LA PROTECTOR JEXMAUSIT ii BAK TENP SENSOR Ses a O COMPRESSOR Bo oe a Swa CONNECTOR Jx1 FT Kb 27E T N 5a DES Ben i EN 2 s te es TO D 2 5 NA KZ NA NA HE va ha lve lye 0009 lt a RECTIFILER2 BLUE RECTIFIER 17 8 Wire connection 8 1 Connection wire specification Standard Wire cover length mm Coles nie nes sini specification Connection wire between indoor 6000 4 10 Neoprene unit and outdoor L N S Grounding Y ZW 300 500V unit Remark The connection wire between indoor unit and outdoor unit is standard And it is packaged in the indoor unit 8 2 Connection wire drawing Grouding Heat retractile pipe n ur terminal Grounding de 1 0mm lt N Mn Tight cincture GA 21 9 37 120 PS magnetism cycle 7 Wire connection 2 Neoprene YZVB00 500V terminal ps Sa rN 1 ES 9 Electronic control function 9 1 Protectio
3. 12 0561 48 3 7348 5 46 5725 22 11 5 49 3 5896 4 44 23 10 9731 50 3 451 3 41 5878 24 10 4736 51 3 3185 2 39 8239 25 10 52 3 1918 1 37 1988 26 9 5507 53 3 0707 0 35 2024 27 9 1245 54 2 959 1 33 3269 28 8 7198 55 2 8442 2 31 5635 29 8 3357 56 2 7382 3 29 9058 30 7 9708 57 2 6368 4 28 3459 31 7 6241 58 2 5397 5 26 8778 32 7 2946 59 2 4468 6 25 4954 33 6 9814 60 2 3577 7 24 1932 34 6 6835 61 2 2725 8 22 5662 35 6 4002 62 2 1907 9 21 8094 36 6 1306 63 2 1124 10 20 7184 37 5 8736 64 2 0373 11 19 6891 38 5 6296 65 1 9653 12 18 7177 39 5 3969 66 1 8963 13 17 8005 40 5 1752 67 1 830 14 16 9341 41 4 9639 68 1 7665 15 16 1156 42 4 7625 69 1 7055 16 15 3418 43 4 5705 70 1 6469 34 Annex 2 1 Reference voltage data a Rectifier Input 220 230V AC output 310V DC Normally In power board P3 and P4 310V DC P5 and P6 310V DC b Inverter module U V W 3ph Result U V 60 150V AC U W 60 150V AC V W 60 150V AC P N DC 310V c Photo couple PC817 PC851 Control side lt 5V AC side lt 24V AC d S terminal and N changeable from 0 24V 2 Check the Diode Bridge component In wiring diagram rectifier Remark If this part is abnormal the LED will not light Multi meter Result Forward Resistance Backward Resistance Infinite Infinite 500 ohm Infinite 500 ohm Infinite 35
4. Compressor Model BA160X2CS 20KU Type Rotary inverter Brand GD Toshiba Capacity Btu h 18000 60HZ Input W 16900 60HZ Rated current RLA A 11 60 60HZ Locked rotor Amp LRA A 60 Thermal protector Internal Capacitor uF 85UF 250V Refrigerant oil ml RB68AF o68TF T 68 750 ml Model YDK100 6 Brand Welling Outdoor fan shee Input W 169 HIGH Capacitor uF SuF 500VAC Speed r min 900 HIGH a Number of rows 2 b Tube pitch a x row pitch b mm 25 4x22 c Fin spacing mm 1 5 Outdoor coil d Fin type code Hydrophilic aluminium e Tube outside dia and type mm 09 53 innergroove tube f Coil length x height x width mm 850x810x44 g Number of circuits 2 Outdoor air flow m3 h 3500 Outdoor noise level dB A 57 Dimension W H D mm 895X860X330 Outdoor unit Packing W H D mm 1043X915X395 Net Gross weight Kg 80 84 Refrigerant type and charge g R410A 2700 Design pressure Hi Lo MPa 4 2 2 5 Refrigerant Liquid side Gas side mm inch 6 35 1 4 9 53 3 8 piping Transfer Connector 9 53 12 7 mm inch 3 Max refrigerant pipe length for each unit m 15 Max difference in level between indoor and m 10 outdoor unit Connection wiring No Plug type No Thermostat type Electronic control Cooling C 17 43 Operation temp f heating C 7 21 Notes 1 Nominal cooling capacities are based on the fol
5. RPG13D Brand Welling Welling Welling Indoor fan motor Input W 37 37 38 5 Capacitor uF 1 2 1 2 1 2 Speed hi mi lo r min 1200 1000 850 1200 1000 850 1180 1000 850 a Number of rows 2 2 2 b Tube pitch a x row pitch b mm 21x13 37 21x13 37 21x13 37 c Fin spacing mm 1 5 1 3 1 3 Indoor coil d Fin type code hydrophilic aluminium hydrophilic aluminium hydrophilic aluminium e Tube outside dia and type mm 7 INNEGROOVE TUBE 07 INNEGROOVE TUBE 7 INNEGROOVE TUBE f Coil length x height x width mm 538X252X26 74 538X252X26 74 578X252X26 74 g Number of circuits 2 2 2 Indoor air flow Hi Mi Lo m3 h 570 480 350 570 480 350 600 520 420 Indoor noise level Hi Mi Lo dB A 35 32 30 37 34 31 40 37 34 Liquid side Gas side mm inch 06 35 09 53 06 35 09 53 06 35 012 7 inden Dimension W H D mm 710x250x195 710x250x195 790x265x195 Packing W H D mm 800x340x270 800x340x270 875x285x375 Net Gross weight Kg 8 9 5 8 9 5 9 11 2 2 Outdoor unit Outdoor Unit Model M2OA 18HRIN1 M3OA 27HRIN1 Indoor Units Combination Single Double Single Double Treble Power supply Ph V Hz 1Ph 220 240V 50Hz 1Ph 220 240V 50Hz Capacity Btu h 7000 12000 18000 7000 12000 16000 24000 27000 Capacity W 2050 3517 5275 2000 3500 4690 7000 7913 Cooling Input W 1000 1300 1813 1000 1300 2570 2850 2806 Rated current A 4 8
6. 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 about 0 6 32 Display LED STATUS P5 Outdoor low temp protection This is optional factory standard unit does not have this function Unit stops when outdoor temp is lower than 15 C and lasting time more than 60 minutes and unit runs again when outdoor temp more than 12 C Is the outdoor temp lower than 15 C Replace the outdoor main board Replace the outdoor temp sensor Display LED STATUS P6 Condenser high temperature protection When outdoor pipe temp is more than 65 C the unit will stop and unit runs again when outdoor pipe temp is less than 52 C Is the outdoor pipe temp more than 65 C Is the outdoor pipe temp sensor right according to the annex 1 Replace the outdoor main board Replace the outdoor pipe temp sensor 33 Characteristic of temp sensor Annex 1 Temp Resistance KO Temp Resistance KO Temp Resistance KO 10 62 2756 17 14 6181 44 4 3874 9 58 7079 18 13 918 45 4 2126 8 56 3694 19 13 2631 46 4 0459 7 52 2438 20 12 6431 47 3 8867 6 49 3161 21
7. sensor Display LED STATUS E5 Compressor voltage protection Check the voltage of power supply if the voltage is about 220V turn off the power supply to indoor unit and turn it on again after 1 minute Does the trouble occur again Yes Check the voltage of secondary of T3 transformer in outdoor power board is this voltage 12 14V AC No Replace the outdoor power board 28 Display LED STATUS E7 Indoor outdoor units communication protection Is the LED in outdoor main PCB light Check the signal wires between outdoor PCB s is it connected good 1 ls the 5 voltage in outdoor main board Power Board CN1 Red wire and yellow GND Outdoor main PCB CZ1 2 ls the 12 voltage in outdoor main board Power Board CN1 Purple wire and yellow GND Inverter module defective Rectifier circuit is bad connection or defective when the voltage in outdoor is abnormal P3 and P4 310V DC P5 and P6 310V DC Check the PC521 PC851 at Outdoor power PCB Normally Input voltage lt 5V changeable Output voltage lt 24V changeable Outdoor power PCB is defective Yes Check the PC817 PC851 at Indoor main PCB and outdoor main board Normally Input voltage lt 5V changeable Output voltage lt 24V changeable Indoor PCB or outdoor main PCB are defective 29 Display LED STATUS P0 Compressor top protection against temper
8. speed is set as low the A C operates with a setting temp of 24 C At auto mode the A C operates with a set temp of 24 C 9 5 Timer Function 1 The maximum length of timer is 24 hours and the minimum resolving power is 15 minutes Timer on first turn off the A C the A C will be automatically on at the set time Timer off first turn on the A C the A C will be automatically off at the set time Timer on off function on time is earlier than off time first turn off the A C it will be automatically on at set time and later be off at the set time then unit turns on at set time 5 Timer off on function off time is earlier than on time first turn on the A C it will be automatically off at set time and later be on at the set time then unit turns off at set time ane 9 6 Sleep mode 9 6 1It is available at cooling heating or auto mode 9 6 2Cooling 21 The set temperature rise 1 C per hour Two hours later the set temperature will maintain as a constant and the fan speed is kept at low speed 9 6 3Heating The set temperature decrease 1 C per hour Two hours later the set temperature will maintain as a constant and the air circulation is kept at low speed Cold air proof function takes precedence over all 9 6 4 Auto The Sleep Mode running function operates in accordance with selected running mode by auto mode 9 6 5After 7 hours unit cancels this mode automatically J2 On On Off Off J3 On Off On
9. temp protection P6 Condenser high temperature protection 10 3 Trouble shooting Display LED STATUS E0 EEPROM error Temporarily turn off the power supply and turn it on again after 1 minutes Does the trouble occur again Replace the indoor PCB 26 Display LED STATUS E1 No 1 Indoor units pipe temp sensor or connector of pipe temp sensor is defective Is connection to connector of pipe temp sensor good Yes Check the resistance of the temp sensor according to Annex 1 Repair connector Replace the sensor Display LED STATUS E2 No 2 Indoor units pipe temp sensor or connector of pipe temp sensor is defective Is connection to connector of pipe temp sensor aood Repair connector Check the resistance of the temp sensor according to Annex 1 Replace the sensor Display LED STATUS E3 No 3 Indoor units pipe temp sensor or connector of pipe temp sensor is defective Is connection to connector of pipe temp sensor aood Repair connector Check the resistance of the temp sensor according to Annex 1 Replace the sensor 27 Display LED STATUS E4 Outdoor units temp sensor or connector of temp sensor is defective Is connection to connector of pipe temp sensor good Repair connector Check the resistance of the temp sensor according to Annex 1 Replace the
10. 6 5 11 5 4 8 6 5 11 7 13 5 13 5 EER Btu w h 9 93 9 62 EER w w 2 91 2 82 Capacity Btu h 9000 14000 21000 10000 14000 24000 27000 30000 Capacity W 2638 4103 6155 2900 4100 7000 7900 8792 Heating Input W 1300 1600 2038 13000 1600 21000 2750 2739 Rated current A 6 3 7 8 11 0 6 3 7 8 11 0 13 2 13 2 COP Btu w h 10 30 10 95 COP w w 3 02 3 21 Max input consumption W 3200 3200 Max current A 20 20 Compressor Model BA160X2CS 20KU BA160X2CS 20KU Type Rotary inverter Rotary inverter Brand GD Toshiba GD Toshiba Capacity Btu h 18000 60HZ 18000 60HZ Input W 1690 6OHZ 1690 60HZ Rated current RLA A 11 6 60HZ 11 6 60HZ Locked rotor Amp LRA A 60 60 Thermal protector Internal Internal Capacitor uF 85UF 250V 85UF 250V Refrigerant oil ml RB68AF o68TF T 68 750 ml RB68AF a68TF T 68 750 ml Model YDK53 6M YDK53 6M Brand Welling Welling Outdoor fan motor Input W 148 148 Capacitor uF 3 0 3 0 Speed r min 775 775 a Number of rows 1 5 1 5 b Tube pitch a x row pitch b mm 25 4x22 25 4x22 c Fin spacing mm 1 7 1 7 Outdoor coil d Fin type code Hydrophilic aluminium Hydrophilic aluminium e Tube outside dia and type mm 09 53 innergroove trube 9 53 innergroove trube f Coil length x height x width mm 776x660x22 776x660x22 g Number of circuits 2 2 Outdoor air flow m3 h 2500 2500 Outdoor noise level dB A
11. 60 60 Dimension W H D mm 845X695X335 845X695X335 Outdoor unit Packing W H D mm 975X772X405 975X772X405 Net Gross weight Kg 68 72 72 76 Refrigerant type R410A g 2200 2350 Design pressure Hi Lo MPa 4 2 2 5 4 2 2 5 Liquid side Gas side mm inch 6 35 09 53 06 35 09 53 6 35 09 53 06 35 09 53 H6 35 09 53 Transfer Connector 9 53 12 7 mm inch 2 2 Refrigerant piping Max refrigerant pipe length m 15 15 15 15 15 Max difference in level m 10 10 10 10 10 Connection wiring No Plug type No Thermostat type Electronic control Operation temp C 17 30 Ambient temp C 17 43 cooling 21 heating Outdoor Unit Model M4OA 27HRIN1 Indoor unit combination single double Treble Quadplex Power supply Ph V Hz 1Ph 220 240V 50Hz Cooling Capacity range Btu h 7000 18000 14000 24000 21000 26000 27000 Capacity 2052 5275 4100 7034 6155 7620 7913 Cooling Rated input power range W 960 2510 1450 2830 2050 3100 2777 Rated current range A 4 4 12 0 6 6 13 0 9 4 14 6 14 8 EER Btu w h 9 72 EER w w 2 85 Heating Capacity range Btu h 9000 18000 16000 25000 21000 27000 28000 Capacity 2638 5275 4689 7327 6155 7913 8206 Rated input power range W 1100 2430 1400 2520 2020 3000 2548 meang Rated current range A 5 0 11 6 6 4 12 0 9 3 13 8 13 9 COP Btu w h 10 99 COP w w 3 22 Max input consumption W 4500 Max current A 25
12. GD Midea Retrigeration Equipment Co Ltd MULTI SPLIT TYPE HEAT PUMP AIR CONDITIONERS Technical service manual 2006 R410A Corona Inverter multi Series Indoor Models MSCI 07HRIN1 MSCI O9HRIN1 MSCI 12HRIN1 Outdoor Models M20A 18HRIN1 M30A 27HRIN1 M40A 27HRIN1 9 Product features Specification Dimensions Refrigeration cycle diagram Operation temperature limits Indoor units combination Wiring diagram Wiring connection Electric control functions 10 Troubleshooting Annex 1 Characteristic of temp sensor Annex 2 Reference data 1 Product Features 1 1 Powerful at cooling heating 1 2 Low voltage start up function 1 3 Anti icing function at cooling mode 1 4 Anti cold air function at heating mode 1 5 Auto defrosting 1 6 Outdoor electric current protection 1 7 Temperature protection of the outdoor compressor top 1 8 Error self diagnosis function 1 9 Free connection between indoor and outdoor unit 2 Specification 2 1 Corona series Model MSCI 07HRIN1 MSCI O9HRIN1 MSCI 12HRIN1 Power supply Ph V Hz 1Ph 220 240V 50Hz 1Ph 220 240V 50Hz 1Ph 220 240V 50Hz Cooling Capacity BTU h 7000 9000 12000 Heating Capacity BTU h 8500 11000 13000 Capacity Running Current A 0 18 0 18 0 20 Design Pressure Hi Lo Mpa 4 2 2 5 4 2 2 5 4 2 2 5 Max Operating Pressure Hi Lo Mpa 3 5 3 5 3 5 3 5 3 5 3 5 Model RPG18H RPG18H
13. Off Stop time 7 hours 8 hours 6 hours 7 hours 9 7 Auto restart function In case of a sudden power failure this function automatically sets the unit to previous settings before the power failure when power returns 9 8 Capacity test frequency locked When test the cooling capacity the frequency can be locked at Rated Frequency by following the below 1 Setthe indoor temp to 17 C and high speed 2 Push the outdoor check button for 5 seconds then its frequency can be fixed at Rated Frequency After the test is over turn off the indoor to exit When test the heating capacity the frequency can be locked at 85Hz by following the below 1 Setthe indoor temp to 30 C and high speed 2 Push the outdoor check button for 5 seconds then its frequency can be fixed at Rated Frequency After the test is over turn off the indoor to exit 9 9 Indoor unit indicator displayer 9 9 1 Display panel Signal receptor BE 22 9 9 2 Display function AUTO indicator This indicator illuminates when the air conditioner is in AUTO operation TIMER indicator This indicator illuminates when TIMER is set ON OFF PRE DEF Indicator For Cooling amp Heating models only This indicator illuminates when the air conditioner starts defrosting automatically or when the warm air control feature is activated in heating mode TEMPERATURE indicator Usually it displays the temperature settings When change the setting temperature this
14. ature Off 120 C On 105 C Does compressor operate No r Is protector on the top of compressor Is refrigerant circulation volume normal P P P normal Normally the resistance of the protector is 0 ohm Gas charging Is abnormality the same after gas charging Replace protector Check the outdoor main PCB Refrigerant system such as clogging of capillary clogging of pipe etc 30 Display LED STATUS P3 Compressor current protection Check the resistance of compressor normally U and V is 0 6 ohm U and W is 0 6 ohm V and W is 0 6 ohm The compressor is defective Turn one indoor unit only Does the compressor start after 3 minutes The compressor is defective Does the trouble occur again after compressor running some time Check the refrigerant circulation volume and pressure If refrigerant circulation volume and pressure is OK change the outdoor main PCB 31 Display LED STATUS P4 Inverter module protection Check the connectors CN12 CN7 CN1 in outdoor PCBs Is connection to connector good Yes Is the wires to compressor right Yes Check the outdoor inverter module Repair connector Is it breakdown between P N P U P V N W N U N V At inverter module Normally P N 1 0MQ P U 2 0MO P V 2 0MO P W 2 0MO N W 1 0MOQ N U 1 0MO N V 1 0MOQ Inverter module is defective Check
15. ay valve switches off c Outdoor fan switches off d Indoor fan running according to anti cold wind function in heating mode 4 Automatic operation mode The air conditioner automatically selects one of the following operation modes cooling heating or fan only according to the temp difference between room temp TA and set temp TS 20 TA TS Operation mode TA TS gt 2 C Cooling 1 C lt TA TS lt 2 C Fan only TA TS lt 1 C Heating air only for cooling only type 9 3 Mode conflict The indoor units can not work cooling mode and heating at same time Heating mode has a priority 9 3 1Definition Cooling mode Heating Mode Fan Off Cooling mode No Yes No No Heating Mode Yes No Yes No Fan No Yes No No Off No No No No No No mode conflict Yes Mode conflict 9 3 2 Unit action e In case of one Indoor unit working in cooling mode or fan mode and another indoor unit is set to heating mode the indoor unit working in cooling mode or fan mode will change to stand by The outdoor unit will work in heating mode e In case of one Indoor unit working in heating mode and another indoor unit is set to cooling mode or fan mode the indoor unit setting to cooling mode or fan mode will change to stand by 9 4 Manual switch Mode changes when push this button Cooing mode gt Auto mode gt Unit off gt Cooing mode At Cooing mode after 30 minutes cooling operation whose fan
16. eating mode Indoor Fan can be set at HIGH MID LOW AUTO by using a remote controller but Anti cold wind function prevails Anti cold wind control function at heating mode 19 Condition Indoor fan speed T Indoor exchanger temp Indoor exchanger temp T lt 34 C Off up 34 C lt T lt 37 C Breeze 37 C lt T lt 44 C Low speed T gt 44 C Setting fan speed Indoor exchanger temp T gt 38 C Setting fan speed down 33 C lt T lt 38 C Low speed 24 C lt T lt 33 C Breeze T lt 24 C Off 1 Auto wind at heating mode Condition Indoor fan speed T Indoor Temp Setting Temp Room temp up T lt 1 5 C High 1 5 C lt T lt 2 5 C Mid T gt 2 5 C Low Room temp down T lt 1 0 C High 1 0 C lt T lt 2 0 C Mid T gt 2 0 C Low 2 Indoor evaporator high temperature protection at heating mode Condition Compressor T Indoor exchanger temp T lt 48 C On 53 C lt T lt 63 C Decrease frequency of compressor T gt 63 C Off 9 2 4 Defrost operation 1 Defrosting condition The temperature of outdoor heat exchanger remains consecutively lower than 2 c for more than 40 minutes 2 Ending condition of defrosting If one of following conditions is satisfied end the defrost and turn into heating mode a The defrost time has reached to 10 minutes b When the temperature of outdoor heat exchanger rises up to 15 C 3 Defrosting Actions a Compressor runs b 4 w
17. illary B 8 valve e S I rf O Indoor pipe out temp seneor A See valve A Comores Indoor pipe out temp seneor B Gas valve B Indoor Unit Outdoor Unit 5 Operation Temperature Limits Indoor temperature 17 32 Cooling mode p U11321 Outdoor temperature og 500 Heating mode Indoor temperature lt 30 Outdoor temperature 150 0 330 Dry mode Indoor temperature 100 320 Outdoor temperature og 500 13 6 Indoor units combination 6 1 Indoor unit combination for M2OA 18HRIN1 One unit Two unit 7 7 7 9 9 12 12 9 7 9 9 12 12 18 12 7 12 9 18 18 7 18 Instruction 1 The total indoor units nominal capacity should not exceed 8 5kw for M2OA 18HRIN1 2 When two indoor units are connected a there should be no more than one cassette b if one cassette is present the other indoor unit should not be 18k unit 6 2Indoor unit combination for M3OA 27HRIN1 One unit Two unit Three unit 7 7 7 9 9 12 12 7 7 7 7 9 9 9 9 12 9 7 9 9 12 12 18 7 74 9 7 9 12 9412412 12 7 12 9 18 7 7 12 7412412 18 7 18 7 7 18 9 9 9 Instruction 1 The total indoor units nominal capacity should not exceed 9 3kw for M3OA 27HRIN1 2 When three indoor units are connected a there should be no more than one 18k either cassette or duct indoor unit b there should be no more than one cassette c if one cassette or one 18k unit is present the
18. indicator begins to flash and stops 20 seconds later It displays the room temperature when the air conditioner is in FAN only operation When the unit stops operation it returns to original factory settings Displays the malfunction code or protection code OPERATION indicator This indicator flashes after power is on and illuminates when the unit is in operation FREQUENCY indicator This indicator appears only when the compressor is in operation and indicates the current operating frequency 9 10 Outdoor unit LED display function 1 When stand by it display number of indoor unit online 2 When operation it display frequency of outdoor unit 3 When defrost it display df 4 When a protection or error occurred it displays error code or protection code 9 11 Check function There is a check button on outdoor pcb When push this button the outdoor LED can display in sequence Capacity demand Running mode revised capacity fan state No 1 evaporator pipe temp No 2 evaporator pipe temp No 3 evaporator pipe temp No 4 evaporator pipe temp outdoor pipe temp Outdoor temp discharge gas temp current of outdoor unit No 1 opening degree of electronic expansion valve No 2 opening degree of EXV No 3 opening degree of EXV No 4 opening degree of EXV gt indoor unit number last protection error code capacity demand cycle Explanation for the some display content 1 Running mode
19. lowing conditions Indoor temp 27 CDB 19 CWB Outdoor temp 35 CDB Equivalent ref Piping 8m horizontal 2 Nominal heating capacities are based on the following conditions Indoor temp 20 CDB Outdoor temp 7 CDB 6 CWB Equivalent ref Piping 8m horizontal 3 Actual noise level may differ depending on the room structure etc since these noise values are from an anechoic room 3 Dimensions 3 1 Corona Series a Indoor unit 7 9K b Indoor Unit 12K _ a TN 1 J 710 sl OJ To QJ IRN LN EEn S 790 l ID O Qd 7 H 2 T 10 3 2 Outdoor unit a Outdoor unit M2OA 18HRIN1 amp M3OA 27HRIN1 4 Refrigeration Cycle Diagram 4 1 Refrigeration circuit drawing of inverter quadplex type Axial flow fan Exhaust temp sensor gt Condenser 4 way valve Compressor A
20. n 1 3 minutes delay at restart for compressor 2 Temperature protection of compressor top compressor stops when the temp of top of compressor is more than 120 C compressor runs when the temp of top of compressor is less than 105 C 3 When AC voltage gt 270V for 30 seconds Outdoor Unit stops operation and alarms When AC voltage lt 260V for 30 seconds Outdoor Unit resumes operation 4 Inverter module protection Inverter module Protection itself has a protection function against current voltage and temperature 5 Sensor protection at open circuit and breaking disconnection 6 Fan Speed is out of control When Indoor Fan Speed is too high higher than High Fan 300RPM or too low lower than 400RPM the unit stops and LED displays failure information and can t return to normal operation automatically 7 Cross Zero signal error warning If there is no Cross Zero signals in 4 minutes the unit stops and LED displays failure information and can t return to normal operation automatically 18 8 Current protection When the current is more than 25A the compressor stops 9 Outdoor condenser high temperature protection Under cooling mode if T3 gt 65 C for 3 minutes the compressor will stop When T3 lt 52 C the protection is not valid 10 Outdoor low temperature protection If the outdoor temperature is lower than 15 C for 1hour the compressor and fan motor will stop If the outdoor temperature is higher than 12 C f
21. ndoor unit should not be 18k unit Remark 1 As 18000 Btu h indoor units just Cassette and duct are available 2 When heating capacity attenuate sharply if indoor unit capacity exceed too much 3 Indoor unit nominal capacity 7k 2 0 9k 2 6 12k 3 2 18k 5 3 7 Wiring Diagram 7 1 Indoor unit 220502 8013 INDOOR WIRING DIAGRAM o INDOR FAN MOTOR LOVER MICR ap CNL a3 ona ROOM TEMP SENSOR BLACK N CNIL RED aie MAN BOARD w x FED L ne PI PE TEM SENSCR N12 YELLOV N3 JX AB B as LNS a7 Y G O SPLAY BORD 4 2 2 2 AUTO RESTART bare le mao swicH IO E PLASMA CUTDOR UN T e 15 7 2 Outdoor unit M2OA 18HRIN1 RECTIFIERS RECTIFILERI ELECTRONIC ELECTRONIC EXPANSIVE EXPANSIVE VALYE A VALVE B HEAT BLACK ser WHITE TEEHAUST mn A COMPRESSOR CONNECTOR KIA SE INDOOR PIPE OUT PIPE OUT TENP B INDOOR TEMP A RED BLIE I RED CONNECTOR RD a RED R1815 _ BLIE 4 TAYS VALVE 7 3 Outdoor unit M3OA 27HRIN1 ELECTRONIC ELECTRONIC ELECTRONIC EXPANSIVE EXPANSIVE EXPANSTWE VALVE A YALYE B VALVE C H x Er EEE P Gror a EEHALST BLACK TEMP SENSOR FLIER TR RED V E COMPRESSOR TNDOOR TEMP C
22. or 10 minutes and the compressor stops operation for 1h or the outdoor temperature is higher than 5 C for 10 minutes then restart and enter into the prior operation mode 11 Compressor pre heating function When the outdoor temperature is lower than 3 C and the compressor stops operation for more than 3 hours or the outdoor temperature is lower than 3 C and the power is just put on the compressor enters into pre heating condition When outdoor temp is more than 5 C or user operate it pre heating condition will finish 9 2 Operating mode 9 2 1 Cooling mode 1 Indoor fan keeps running fan speed can be set in high mid low Auto 2 Auto fan at cooling mode T Indoor Temp Setting Temp Condition Indoor fan speed Room temp up T lt 1 5 C Low 1 5 C lt T lt 4 C Mid T gt 4 C High Room temp down T gt 3 C High 1 C lt T lt 3 C Mid T lt 1 C Low 3 Anti freezing control to indoor evaporator at cooling mode T evaporator temp Evaporator Temp Compressor T lt 4 C Off T gt 8 C On 9 2 2 Dehumidifying mode 1 The indoor fan is fixed in low speed 2 Low room temperature protection When room temperature decreases to below 10 C indoor fan stop when room temperature restores to over 12 C indoor fan start 3 At dehumidifying mode the anti freezing function of the indoor heat exchanger is the same as that of cooling mode 9 2 3 Heating mode 1 Indoor Fan actions at h
23. other indoor units should be all 7K 3 When two indoor units are connected a there should be no more than one 18k either cassette or duct b there should be no more than one cassette c if one cassette is present the other indoor unit should not be 18k unit 6 4 Indoor unit combination for M40A 27HRIN1 pne Two unit Three unit Four unit unit 7 7 7 9 9 12 12 7 7 7 7 9 9 7 12 18 9 12 12 7 7 7 7 7 7 9 9 9 9 9 9 9 7 9 9 12 12 18 7 7 9 7 9 12 9 9 9 9 12 18 7 7 7 9 7 74 9412 9 9 9 12 12 7 12 9 18 7 7 12 7 9 18 9 9 12 12412412 7 7 7 12 7 9 9 9 18 7 18 7 7 18 7 12 12 9 9 18 7 7 7 18 7 9 9 12 Instruction 1 The total indoor units nominal capacity should not exceed 11 3kw for M4OA 27HRIN1 2 When four indoor units are connected a there should be no more than one 18k either cassette or duct indoor unit b there should be no more than one cassette c if one cassette or one 18k unit is present the other indoor units should be all 7K 3 When three indoor units are connected a there should be no more than one 18k either cassette or duct b there should be no more than one cassette c if one cassette is present the other duct units should be all 7K 4 When two indoor units are connected a there should be no more than one 18k either cassette or duct b there should be no more than one cassette c if one cassette is present the other i
24. r PCB is high voltage about 310V 10 2 LED error code display for indoor unit Display LED STATUS EO EEPROM error E1 Indoor and outdoor unit communication error E2 Zero crossing examination error E3 Fan speed beyond control E5 Outdoor units temp sensor or connector of temp sensor is defective E6 Indoor units temp sensor or connector of temp sensor is defective PO Inverter module protection P1 Outdoor unit voltage protection P2 Compressor top protection against temperature P3 Compressor current protection P4 DC compressor drive position protection P5 Outdoor low temp protection 25 10 3 LED error code display for outdoor unit Display Explanation EO EEPROM error E1 No 1 Indoor units pipe temp sensor or connector of pipe temp sensor is defective E2 No 2 Indoor units pipe temp sensor or connector of pipe temp sensor is defective E3 No 3 Indoor units pipe temp sensor or connector of pipe temp sensor is defective E4 Outdoor temp sensor or connector of temp sensor is defective E5 Compressor voltage protection E6 No 4 Indoor units pipe temp sensor or connector of pipe temp sensor is defective E7 Indoor and outdoor communication error P0 Compressor top protection against temperature P1 High pressure protection reserve P2 Low pressure protection reserve P3 Compressor current protection P4 Inverter module protection P5 Outdoor low
25. uxiliary Capillary Check Valve Coil temp sensor Capillary A EXVA Filter A Main Cepillary P a FAV B Capillary Filter B Capillary C _LEXV C NN Filter C Capillary C EXVC Filter C Indoor pipe out temp seneor A Indoor pipe out temp seneor B Indoor pipe out temp seneor C Indoor pipe out temp seneor D Outdoor Unit 4 2 Refrigeration circuit drawing of inverter triple type Axial flow fan Exhaust temp sensor INS Condenser lt 4 way valve Compressor Main Capillary Coil temp sensor Capillary A EXVA Auxiliary A A SLY Capillary V K Filter A Capillary B EXV B Check J Filter B Valve Capillary C EXV C SQ Poe Filter C Indoor pipe out temp seneor A Indoor pipe out temp seneor B Indoor pipe out temp seneor C Outdoor Unit 12 Liquid valve A Liquid valve B Liquid valve C Liquid valve D Gas valve A Gas valve B Gas valve C Gas valve D Liquid valve A Liquid valve B Liquid valve C Gas valve A Gas valve B Gas valve C Cross flow fan Evaporator Indoor Unit Cross flow fan Evaporator Indoor Unit 4 2 Refrigeration circuit drawing of inverter binary type Axial flow fan EXVA Auxiliary Filter A Liquid valve A Exhaust Main Capillary NNS temp sensor Capillary Capillary A AVN VN EXVB J Check _ FilterB Liquid valve B Condenser Coil temp Valve N w 5 k 4 way sensor Cap
Download Pdf Manuals
Related Search