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Airwell YCV Series, Service Manual

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CONTENTS

1. Features ............................................................................................................ 1
2. Specification ...................................................................................................... 3
3. Refrigerant Circuit ............................................................................................. 9
4. Dimension ....................................................................................................... 12
5. Wiring Diagram ............................................................................................... 14
6. Performance Curves ....................................................................................... 17
7. Operation Range ............................................................................................. 19
8. Noise Level ..................................................................................................... 21
9. Outdoor Installation ......................................................................................... 22

9.1 Safety ...........................................................................................................22
9.2 Installation instruction ...................................................................................24

10. Electric Installation ........................................................................................ 32
11. Trial Operation ............................................................................................... 35
12. PCB Photo .................................................................................................... 37
13. Dip Switch Setting ......................................................................................... 39
14. Digital Tube Display ...................................................................................... 41
15. Outdoor Unit Control ..................................................................................... 43
16. Failure Code ................................................................................................. 46
17. Troubleshooting ............................................................................................ 49

Summary of Contents for YCV Series

Page 1: ...Read this manual carefully before installing or operating your new air conditioning unit Make sure to save this manual for future reference 20 AW YCV 8 18kW R410A SM EN 05 16 Rev01 Flow Logic MINI YC...

Page 2: ...ance Curves 17 7 Operation Range 19 8 Noise Level 21 9 Outdoor Installation 22 9 1 Safety 22 9 2 Installation instruction 24 10 Electric Installation 32 11 Trial Operation 35 12 PCB Photo 37 13 Dip Sw...

Page 3: ...or refrigerant ow realizes the linear output creates a comfortable environment The temperature could be controlled precisely Imprecise common control PID precise control Refrigerant ow speed Refrigera...

Page 4: ...prompt than conventional control system Protections Pressure temp compressor fan motor refrigerant oil quantity etc Realize perfect performance Malfunction self diagnose 2 DC fan motor AWAU YCV150 18...

Page 5: ...LECTRIC Model TNB220FLHMC MNB42FFAMC L Type Rotary Rotary Compressor quantity 1 INV 1 INV Capacity W 7130 13780 Power input W 2200 4310 Rated current RLA A 9 7 15 8 Speed rps 60 60 Crankcase heater W...

Page 6: ...et weight kg 70 99 Gross weight kg 76 107 Refrigerant Type R410A R410A Charged volume kg 2 4 3 8 Throttle type EXV EXV Design pressure MPa 4 15 4 15 Refrigerant piping Liquid pipe mm 9 52 9 52 Gas pip...

Page 7: ...or Brand MITSUBISHI ELECTRIC Model MNB42FFAMC L Type Rotary Compressor quantity 1 INV Capacity W 13780 Power input W 4310 Rated current RLA A 15 8 Speed rps 60 Crankcase heater W 28 Refrigerant oil br...

Page 8: ...kg 99 Gross weight kg 107 Refrigerant Type R410A Charged volume kg 3 8 Throttle type EXV Design pressure MPa 4 15 Refrigerant piping Liquid pipe mm 9 52 Gas pipe mm 19 05 Total pipe length m 150 Max p...

Page 9: ...del MNB42FFDMC L MNB42FFDMC L Type Rotary Rotary Compressor quantity 1 INV 1 INV Capacity W 13780 13780 Power input W 4060 4060 Rated current RLA A 12 3 12 3 Speed rps 60 60 Crankcase heater W 28 28 R...

Page 10: ...0 Net weight kg 99 99 Gross weight kg 107 107 Refrigerant Type R410A R410A Charged volume kg 3 8 3 8 Throttle type EXV EXV Design pressure MPa 4 15 4 15 Refrigerant piping Liquid pipe mm 9 52 9 52 Gas...

Page 11: ...9 Te Td Inverter compressor d s c e 4wv Gas pipe stop valve Condensor HP Tc Ts PMV SV1 Liquid pipe stop valve LP Ta Gas liquid separator 3 Refrigerant Circuit AWAU YCV080 H11...

Page 12: ...10 AWAU YCV125 H11 AWAU YCV150 H11 AWAU YCV150 180 H13 Td d s c e 4wv Ts PMV SV2 SV1 Gas pipe stop valve Liquid pipe stop valve HP LP Inverter compressor Gas liquid separator Condensor Ta Tc Te...

Page 13: ...rts up or stops AC220V SV2 Refrigerant jet protection when discharging temp is too high 4 way valve ALL 4WV Change over between cooling and heating AC220V electrified in heat not electrified in coolin...

Page 14: ...12 4 Dimension AWAU YCV080 H11 960 830 580 184 184 340 380 67 21 Drain hole...

Page 15: ...13 AWAU YCV125 H11 AWAU YCV150 H11 AWAU YCV150 H13 AWAU YCV180 H13 960 1250 23 340 380 580 184 184 67 Drain hole Fixing hole 4 15...

Page 16: ...ensor TC Coil temp sensor Ambient temp sensor Electronic expansion valve Digital display tubes PC Monitor Tfin IPM temperature sensor BL R BL CN20 CN11 CN14 ACFAN1 M CN13 U P V W N AC N AC L LI LO CN1...

Page 17: ...lease power off firstly for about 10 minutes before checking control box and make sure the voltage between P and N below 20V The switch BM1 1 is used for locking the indoor units number the initial si...

Page 18: ...power on the display board will display U indicates the number of indoor units that the outdoor unit can communicate with If it can match the actual number of indoor units please change OFF to ON or...

Page 19: ...17 6 Performance Curves 1 Calculation method of refrigerating capacity Refrigerating capacity to be known Refrigerating capacity A B C D E W unit...

Page 20: ...wn Heating capacity A B C D E F W Outdoor modified capacity with a single indoor running outdoor modified capacity 3 Calculation method of refrigerating capacity Only one indoor unit running Outdoor m...

Page 21: ...5 20 25 30 35 40 45 50 55 Outdoor temperature C DB Indoor temperature C WB Continuous operation range Cooling Outdoor temperature C WB 10 20 15 20 25 30 1 5 1 0 Indoor temperature C DB Heating 5 0 5 1...

Page 22: ...perature C DB Indoor temperature C WB Continuous operation range Cooling Outdoor temperature C WB 10 20 15 20 25 30 15 10 Indoor temperature C DB Heating 5 0 5 10 15 20 Continuous operation range 25 2...

Page 23: ...continuous noise NC 60 NC 50 NC 40 NC 30 NC 20 H 8000 4000 2000 1000 500 250 125 63 63 63 63 63 63 63 63 70 60 50 40 30 20 10 Octave band center frequency Hz Octave band sound pressure level dB A Lim...

Page 24: ...appliances are not intended to be operated by means of an external timer or separate remote control system Keep the appliance and its cord out of reach of children less than 8 years WARNING The insta...

Page 25: ...and exceeds the limited concentration it will cause lack of oxygen Don t use the other refrigerant except for R410A The R410A pressure is 1 6 times higher than R22 pressure The refrigerant R410A tank...

Page 26: ...e wires and parts purchased respectively are correct 2 Check if the indoors and outdoors can be combined as the following Notice Total capacities of indoor units being used 100 of rated capacities of...

Page 27: ...hole at bottom of the unit When being hanged the rope should be 4 pieces of steel cable with over 6mm diameter Put the cushion at the contact section between steel cable and the unit against the dist...

Page 28: ...her pipe should be performed according to the relative manual Pipe specification a a a a b b c 1 Pipe a diameter between indoor and branch pipe depends on indoor pipe Please refer to the indoor air co...

Page 29: ...first branch piping L 40m L2 L3 L4 e Drop height Drop height between indoor and outdoor unit H Up outdoor 30m Under outdoor 20m Drop height between indoor units h 10m AWAU YCV080 H11 type Maximal leng...

Page 30: ...ore than 1 4 Branch pipe Outdoor unit type Branch pipe selection Note 1 When connecting the pipe and the outdoor please pay attention to the outdoor pipe dimension 2 When adjusting the diameter among...

Page 31: ...ipe and the branch pipe should be welded with hard solder Weld the pipe at the same time charge the nitrogen Or it will cause a number of impurity a film of oxidation to clog the capillary and the exp...

Page 32: ...sition by laying on the soap modify the leakage point and take another leakage test 4 After leakage test must execute the evacuation Evacute at the check valve of liquid stop valve and both sides of t...

Page 33: ...charging refrigerant the refrigerant should be taken out from the tank as liquid state Mark the counted refrigerant volume due to the distributing pipe length on the label Tighten torque as the table...

Page 34: ...AC fan motor models The wired controller is connected with the master unit and DC fan motor models through three lines with polarity Other indoor units and the master unit are connected via two lines...

Page 35: ...230V 50Hz Outdoor AWAU YCV080 H11 AWAU YCV125 H11 AWAU YCV150 H11 Outdoor power source and power cable Power cable must be fixed firmly Each outdoor must be earthed well When power cable exceeds the...

Page 36: ...elow 0 1s 15 and 22 5 5 27 40 40A 30mA below 0 1s 22 and 27 10 42 50 50A 30mA below 0 1s Power cable and communication wire must be fixed firmly Each indoor must be grounded well When power cable exce...

Page 37: ...g mode air outlet and air inlet of outdoor are clogged In heating mode indoor filter is stacked with duct indoor air outlet is clogged When protection device acts please cut off the power source and r...

Page 38: ...onfirm the compressor bottom getting hot Except for the condition that there is only one master unit connected no slave unit under the other conditions open fully the outdoor operating valves gas side...

Page 39: ...37 12 PCB Photo PCB code 0151800146D Outdoor model AWAU YCV080 H11 BM2 BM1 LED1 LED3 LED2 LED4...

Page 40: ...38 PCB code 0151800146EA Outdoor model AWAU YCV125 H11 AWAU YCV150 H11 AWAU YCV150 H13 AWAU YCV180 H13 BM2 BM1 LED1 LED3 LED2 LED4...

Page 41: ...ON All DC BM1_4 Priority selection for energy saving effect 4 Priority selection for energy saving effect OFF Energy saving priority ON Effect priority BM1_5 Indoor ON OFF simultaneous control 5 Indoo...

Page 42: ...FF YCV080 ON OFF ON YCV125 150 ON ON OFF YCV180 BM2_5 Power source selected 5 Power source selected OFF Single phase ON Three phase BM2_6 Communication protocol selection 6 Communication protocol sele...

Page 43: ...uency control Up Down to adjust the frequency press Stop 5 seconds to exit manual frequency control Frequency flashes when manual control while non manual control frequency displays normally 5 Actual...

Page 44: ...ndoor unit types 0 Ordinary indoor uint 1 Wall mounted 2 Fresh air uint 3 Heat reclaim ventalation 4 7 Ordinary indoor unit 4 0 F Display failure code when suffers failure or else display 5 0 F Indoor...

Page 45: ...ue 2 Tao 5 C In order to improve the effect of indoor unit reach the purpose of rapid cooling heating make the following control 1 In cooling when outdoor ambient temperature above 25 C the first 60 m...

Page 46: ...ously Outdoor Te 20 C for 30s continuously Outdoor Te 30 C for 5s continuously Tc 54 C OR OR After heating startup 60min C 23 Tao 15 C Te Tao 69 4 For 5min continuously D Tao 23 C Te 23 C For 5min con...

Page 47: ...ening angle increased 10 max time is 2 When Td 90 C returns to the usually opening OR 15 4 Oil return control 15 4 1 Entering condition 15 4 2 Oil return control 15 4 3 Oil return quit condition OR OR...

Page 48: ...ous 300seconds the searched indoor quantity is more than the set quantity 30 1E High pressure switch HPS failure If disconnect for 50ms continuously alarm If alarm 3 times in an hour confirm the failu...

Page 49: ...firmation un resumable 82 52 Compressor current protection Compressor current exceeds specified value 3 minutes after recovery 108 6C Transient over current in IPM module rectifier side software Trans...

Page 50: ...al Power supply of inverter board is broken down instantly 3 times in an hour confirm failure once confirmation un resumable 122 7A Radiator temp sensor of transducer abnormal Resistor of temp sensor...

Page 51: ...ture sensor failure If sensor terminal is fixed well If voltage between red terminal and black terminal is 5V when testing pressure sensor by multimeter If voltage between white terminal and black ter...

Page 52: ...lure disappears after changing indoor PCB If there is noise source Check outdoor PCB if faulty replace it If communication wire is separate from high voltage wire on layout Modify the communication wi...

Page 53: ...6MPa Replace 4 way valve Re connect Check if SV1 leaks Replace connecting board Check compressor Measure if CN49 voltage on connecting board is 220VAC after 4 way valve reversing condition is met If t...

Page 54: ...ogged Make pressure switch terminal on connecting board in short circuit check if failure exists still If sensor resistor characteristic is proper If sensor terminal is fixed well If the system is lac...

Page 55: ...fixed well Check if refrigerant is too much In cooling mode when the indoor unit off if the EEV can t completely close Fix again or replace the sensor Reconnect Replace or adjustment the indoor unit E...

Page 56: ...e is in conformance with the measured data by sensor Check if terminal of electronic expansion valve coil is fixed well Check if piping system is clogged Check if system is lack of refrigerant Check i...

Page 57: ...runs normally If stop valve opens fully If in heating indoor fan motor runs normally and if filter is clogged Check if piping system is clogged No No No No Yes Yes Yes Yes Yes Replace pressure sensor...

Page 58: ...fixed well Check if refrigerant is too much In cooling mode when the indoor unit off if the EEV can t completely close No No No Yes Yes Yes Yes Re connect Replace module Replace wire Replace connectin...

Page 59: ...check if failure exists still Replace pressure switch Replace connecting board Re connect No Yes No No Yes Yes If the system lack of refrigerant Recharge the refrigerant 53 Current sensor failure Chec...

Page 60: ...f temperature on top of fixed fixed frequency compressor is too high If normal after replacing CT detector If AC contactor work If there is air into the system If there is clogged motor is bad Replace...

Page 61: ...ously fiction Forced the fan in low speed measure if it has alternating voltage between FG and GND Check the motor and PCB connection is well Replace fan motor Re connect Replace the motor Replace the...

Page 62: ...d oppositely If 4 way valve is interconnected Measure if there is voltage U V W of compressor by multimeter and if it is normal Replace inverter compressor Re connect Correct compressor wire Correct c...

Page 63: ...balance Check if the high low pressure is normal Change the module Reconnect or change the wires Change the compressor Yes Yes Yes No No 82 Compressor current protection 108 Transient over current in...

Page 64: ...move the failure Solve the failures due to relative information If power module is normal Check if wire of electric box is correct and if compressor wire is fixed well If there are the other failure r...

Page 65: ...ressor are normal If compressor is normal compressor coil resistor insulation Compressor load too much check the reason Check the temperature sensor characteristic is correct Check the radiator is blo...

Page 66: ...Protection of overload 114 Voltage too low of DC bus line of transducer Check if voltage of power supply is normal Measure if DC bus line voltage between P and N of module is less than 375V Circuit of...

Page 67: ...power supply circuit Correct the wiring due to diagram Circuit of DC bus line voltage on inverter control board abnormal replace inverter control board Yes Yes Yes No No No Check if wire between cont...

Page 68: ...power module If compressor is normal compressor coil resistor insulation Yes Yes Yes Yes No No No No 117 Transducer over current software protection 118 Compressor startup failure Check if voltage of...

Page 69: ...direction of DCCT is normal Check if current sensor is normal Replace inverter PCB Correct the wiring due to diagram Replace current sensor No No Check if connection between temp sensor and inverter...

Page 70: ...cuit DC bus line voltage circuit on inverter board broken down replace inverter module board Adjust or replace relay or AC contactor Correct the wiring due to diagram Improve power supply circuit Yes...

Page 71: ...56 23 103 00 96 72 90 44 6 49 6 49 22 97 85 91 95 86 05 6 42 6 42 21 92 92 87 37 81 83 6 35 6 35 20 88 20 82 99 77 79 6 27 6 27 19 83 70 78 82 73 93 6 20 6 20 18 79 42 74 83 70 25 6 13 6 13 17 75 34 7...

Page 72: ...9 29 8 80 8 52 8 24 3 25 3 25 30 8 46 8 19 7 92 3 31 3 31 31 8 14 7 87 7 61 3 38 3 38 32 7 83 7 57 7 31 3 44 3 44 33 7 53 7 28 7 02 3 50 3 50 34 7 25 7 00 6 75 3 56 3 56 35 6 98 6 73 6 49 3 63 3 63 36...

Page 73: ...35 6 38 6 38 80 1 49 1 40 1 31 6 44 6 44 81 1 44 1 36 1 27 6 50 6 50 82 1 40 1 32 1 23 6 56 6 56 83 1 36 1 28 1 19 6 63 6 63 84 1 32 1 24 1 16 6 69 6 69 85 1 29 1 20 1 12 6 75 6 75 86 1 25 1 17 1 09...

Page 74: ...171 01 164 40 157 79 4 02 4 02 11 161 13 154 98 148 84 3 96 3 96 10 151 87 146 15 140 44 3 91 3 91 9 143 18 137 87 132 56 3 85 3 85 8 135 04 130 10 125 15 3 80 3 80 7 127 40 122 80 118 20 3 75 3 75 6...

Page 75: ...48 2 48 37 13 70 13 36 13 03 2 53 2 53 38 13 12 12 79 12 47 2 57 2 57 39 12 57 12 25 11 93 2 61 2 61 40 12 05 11 74 11 42 2 66 2 66 41 11 55 11 24 10 94 2 70 2 70 42 11 07 10 78 10 48 2 74 2 74 43 10...

Page 76: ...2 34 4 45 4 45 82 2 47 2 37 2 26 4 49 4 49 83 2 39 2 29 2 19 4 54 4 54 84 2 32 2 22 2 12 4 58 4 58 85 2 25 2 15 2 05 4 63 4 63 86 2 18 2 08 1 98 4 67 4 67 87 2 11 2 02 1 92 4 71 4 71 88 2 05 1 95 1 86...

Page 77: ...65 19 635 89 688 00 740 12 7 58 7 58 20 605 19 654 25 703 32 7 50 7 50 21 576 15 622 36 668 57 7 43 7 43 22 548 66 592 19 635 72 7 35 7 35 23 522 65 563 65 604 66 7 28 7 28 24 498 01 536 64 575 28 7 2...

Page 78: ...51 81 76 85 01 3 98 3 98 68 75 57 78 64 81 70 3 90 3 90 69 72 75 75 65 78 54 3 83 3 83 70 70 05 72 78 75 51 3 75 3 75 71 67 47 70 04 72 61 3 68 3 68 72 64 99 67 42 69 84 3 60 3 60 73 62 61 64 90 67 1...

Page 79: ...114 14 93 15 76 16 59 5 27 5 27 115 14 46 15 28 16 09 5 33 5 33 116 14 01 14 80 15 60 5 40 5 40 117 13 57 14 35 15 13 5 47 5 47 118 13 14 13 91 14 68 5 53 5 53 119 12 73 13 49 14 24 5 60 5 60 120 12 3...

Page 80: ...0 2 7 1 5 2 2 2 9 1 7 2 4 3 1 1 8 2 5 3 2 3 3 0 8 2 0 1 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0 1 1 0 1 3 0 1 2 0 k k g k c a l k g 0 5 10 15 20 25 30 35 40 i d k kg kcal kg Wet air enthalpy hum...

Page 81: ......

Page 82: ...with the sales agency or manufacturer for details ATTENTION Le design et les donn es techniques sont donn s titre indicatif et peuvent tre modifi s sans pr avis AIRWELL RESIDENTIAL SAS 10 Rue du Fort...

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