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16.4.5 Refrigerant Leakage Detection diagnosis and solution (EC)

Error Code

Malfunction conditions

Define the evaporator coil temperature T2 of the compressor
starts running as Tcool.
If the following occurs 3 times, the display shows "EC" and the
unit switches off:
In the first 8 minutes after the compressor starts up, if T2

＜

Tcool

－

℃

is not maintained for 4 seconds and compressor

running frequency is not higher than 50Hz for 3 minutes

Potential Causes

●

Faulty T2 sensor

●

Faulty indoor PCB

●

System problems, such as leakage or blockages

Trouble shooting:

Summary of Contents for HP Series

Page 1: ...19 PAC inverter R410a 60Hz HP CO SERIES YEKE12BZTMCMOWX YEKE18BZTMCMOWX YEKE24BZTMCMOWX YFKE18BZTMCMORX YFKE24BZTMCMORX YKKE12BZTMCMORX YKKE24BZTMCMORX YKKE18BZTMCMORX YEJE12BZTMCMOWX YEJE18BZTMCMOWX...

Page 2: ...l 48 9 1 Indoor unit 48 9 2 Outdoor unit 50 10 Accessories 51 11 The Specification of Power 53 13 Installation Details 55 13 1Location selection 55 13 2 Indoor unit installation 55 13 3 Outdoor unit i...

Page 3: ...g 84 16 1 Indoor Unit Error Display 85 16 2 Error Display on Two Way Communication Wired Controller 86 16 3 Outdoor unit error display 87 16 4 Diagnosis and Solution 91 16 5 Main parts check 121 17 Ca...

Page 4: ...t Sharp edges could cause injury be especially careful of the case edges and the fins on the condenser and evaporator For installation always contact the dealer or an authorized service center Do not...

Page 5: ...epair of product Low refrigerant levels may cause failure of product Install the drain hose to ensure that water is drained away properly A bad connection may cause water leakage Keep level even when...

Page 6: ...l injury Replace the all batteries in the remote control with new ones of the same type Do not mix old and new batteries or different types of batteries There is risk of fire or explosion Do not recha...

Page 7: ...2BYTMCMO X A6 Duct YEKE12BXTMCM WX YEJE12BXTMCM WX Cassette 18K YKKE18BXTMCM RX YKJE18BXTMCM RX YUKE18BYTMCMO X YUJE18BYTMCMO X Floor Ceiling YFKE18BXTMCM RX YFJE18BXTMCM RX A6 Duct YEKE18BXTMCM WX YE...

Page 8: ...5 2 2 Part names of Indoor Outdoor units Cassette Units...

Page 9: ...6...

Page 10: ...7 Ceiling floor Units...

Page 11: ...2 3 1 3 Fire proof Controller Box Electrical control box adopts new design which can meet higher fire safety requirements 2 3 1 4 Fresh Air Fresh air intake function bring you fresh and comfortable ai...

Page 12: ...750mm upmost It s convenient to install drainage piping under most space condition 2 3 1 7Terminals For Alarm Lamp and Long distance On off Controller Connection Are Standard Reserve terminals for the...

Page 13: ...airflow ways help to spread air comfortably throughout even a large room With these functions the whole room can be evenly air conditioned for both floor level and ceiling installation 2 3 2 4 Option...

Page 14: ...11 2 3 2 7 Outside Water Pump for Optional When Ceiling Installation...

Page 15: ...t 300mm 2 3 3 3 Constant air volume control For ordinary duct when the static pressure exceeds the expected range it is fairly difficult even for an experienced installer to calculate and adjust the a...

Page 16: ...e been detached heat exchanger and water receiver tray in behind can be seen very clearly Dust can be easily removed from the inside by vacuum 2 3 3 7 Fresh air intake function Optional Install one du...

Page 17: ...o improve the fresh air volume There are reserved ports for this motor on main PCB Standard for 3D inverter units and only optional for DC inverter 53 160 units 2 3 3 8 Drain pump Optional Built in dr...

Page 18: ...18K Panel Gas side Liquid side 4 install hanger Body Drain pipe 25 Fresh air intake 65 647 647 50 Drain hole for Service 545 570 260 68 42 157 126 44 Wiring connection port 75 E parts box 4 Screw hole...

Page 19: ...0 780 680 136 126 91 196 132 A A B A A B A A B A B Service hole for draining pump Fresh air intake 75 55 80 80 4 install hanger Gas side Liquid side E parts box 135 90 Panel Body 92 92 92 92 D D 92 92...

Page 20: ...s A B 220 222 C 120 2 40 120 140 2 33 Wiring connection port 204 94 Fresh air intake Drain discharge port Refrigerant pipe hole Hanging arm D Capacity Btu h A B C D 18K 24K mm 1068 675 235 983 inch 42...

Page 21: ...7 7 5 4 21 1 1 2 6 0 23 6 7 3 2 0 29 2 14 2 3 3 5 5 3 3 3 3 18 mm 880 210 674 600 140 706 50 136 782 190 40 920 508 78 148 88 112 inch 34 6 8 3 26 5 23 6 5 5 27 8 2 0 5 4 30 8 7 5 1 6 36 2 20 0 3 1 5...

Page 22: ...rent Model unit W D H W1 A B YUKE12BYTMCMO X YUJE12BYTMCMO X mm 800 333 554 870 514 340 inch 31 5 13 1 21 8 34 3 20 2 13 4 YUKE18BYTMCMO X YUJE18BYTMCMO X mm 845 363 702 914 540 350 inch 33 3 14 3 27...

Page 23: ...nough space required for installation and maintenance 200mm 7 87in or more 300mm 11 81in or more 600mmx600mm 23 62inx23 62in Check orifice All the indoor units reserve the hole to connect the fresh ai...

Page 24: ...21 Ceiling floor Units...

Page 25: ...22 4 2 Outdoor Unit More than 30cm 11 81in More than 60cm 23 62in More than 200cm 78 74in Air inlet Air inlet More than 30cm 11 81in Air outlet Wall or obstacle Maintain channel More than 60cm 23 62in...

Page 26: ...emp sensor INDOOR OUTDOOR T2 Evaporator temp sensor Electronic expansion valve CAPILIARY TUBE YUKE12BYTMCMO X YUJE12BYTMCMO X YUKE18BYTMCMO X YUJE18BYTMCMO X LIQUID SIDE GAS SIDE HEAT EXCHANGE EVAPORA...

Page 27: ...24 6 Wiring Diagram 6 1 Indoor Unit YKKE12BXTMCM RX YKJE12BXTMCM RX YKKE18BXTMCM RX YKJE18BXTMCM RX...

Page 28: ...25 YFKE18BXTMCM RX YFJE18BXTMCM RX YFKE24BXTMCM RX YFJE24BXTMCM RX...

Page 29: ...26 YEKE12BXTMCM WX YEJE12BXTMCM WX YEKE18BXTMCM WX YEJE18BXTMCM WX YEKE24BXTMCM WX YEJE24BXTMCM WX...

Page 30: ...remote switch on you can use remote controller wire controller to select the mode what you want when the remote switch off the unit would not respond the demand from remote controller wire controller...

Page 31: ...he motor 2 The output voltage is the power supply 3 The fresh motor cannot excess 200W or 1A follow the smaller one 4 The new fresh motor will be worked when the indoor fan motor work when the indoor...

Page 32: ...r to select the mode what you want when the remote switch off the unit would not respond the demand from remote controller wire controller When the remote switch off but the remote controller wire con...

Page 33: ...r to the port no need care L N of the motor 2 The output voltage is the power supply 3 The fresh motor cannot excess 200W or 1A follow the smaller one 4 The new fresh motor will be worked when the ind...

Page 34: ...r to the port no need care L N of the motor 2 The output voltage is the power supply 3 The fresh motor cannot excess 200W or 1A follow the smaller one 4 The new fresh motor will be worked when the ind...

Page 35: ...Remove the short connector of J7 when you use ON OFF function 2 When remote switch off OPEN the unit would be off 3 When remote switch on CLOSE the unit would be on 4 When close open the remote switch...

Page 36: ...ROM setting reserved for special customizing T 2 S e ttin g fa n s p e e d H M M L S u p e r s lo w F a n o ff T E L 0 1 6 T E L 0 1 4 T E L 0 1 2 T E L 0 1 0 T E L 0 8 T E L 0 6 T E L 0 1 2 T E L 0 1...

Page 37: ...mode This helps to reduce the real temperature difference between ceiling and floor so that the unit could run properly If the height of installation is lower smaller value could be chosen Range 6oC...

Page 38: ...n anti cold wind action in heating mode Range 24oC 15oC 8oC According to EEROM setting reserved for special customizing For YFKE24BXTMCM RX YFJE24BXTMCM RX T 2 S e ttin g fa n s p e e d H M M L S u p...

Page 39: ...EL0 16 TE1 TEL0 14 TE1 TEL0 12 TE1 TEL0 10 TE1 TEL0 B Micro switch SW2 is for selection of indoor FAN ACTION if room temperature reaches the setponit and the compressor stops Range OFF in 127s Keep ru...

Page 40: ...re difference between ceiling and floor so that the unit could run properly If the unit is on floor installed 0 should be chosen Range 0oC 2oC 4oC E function reserved for special customizing F Micro s...

Page 41: ...oC 8 oC according to EEROM setting reserved for special customizing T2 Setting fan speed H M M L Super slow Fan off TEL0 23 TE1 TEL0 21 TE1 TEL0 19 TE1 TEL0 17 TE1 TEL0 15 TE1 TEL0 13 TE1 TEL0 18 TE1...

Page 42: ...uld run properly If the height of installation is lower smaller value could be chosen Range 6oC 4oC 2oC E function reserved for special customizing D Micro switch S1 and dial switch S2 are for address...

Page 43: ...40 6 2 Outdoor Unit YUKE18BYTMCMO X YUJE18BYTMCMO X YUKE24BYTMCMO X YUJE24BYTMCMO X...

Page 44: ...41 YUKE12BYTMCMO X YUJE12BYTMCMO X...

Page 45: ...R178 C409 IC402 C403 IC11 E 402 D 401 C401 R403 C411 C40 C50 D403 R401 R405 R406 R404 E 404 D402 D404 C408 C402 E403 R407 R408 C404 C110 E409 E401 R402 C405 10 9 7 6 5 4 3 1 T401 C406 C407 D13 D14 E...

Page 46: ...1 2 3 4 Model 12 0 02 5 0 04 10 0 08 20 0 12 30 0 16 40 0 0 18 0 45 Model 18 0 04 10 0 10 25 0 14 35 0 18 45 0 22 55 0 0 28 0 70 18 Model 24 0 04 10 0 10 25 0 16 40 0 22 55 0 28 70 0 0 40 0 100 24 Mod...

Page 47: ...08 0 04 0 External static pressure pa in w c 10 20 25 30 40 50 0 10 0 12 0 16 0 20 0 08 0 04 0 1200 706 1100 647 1000 588 900 529 800 471 700 412 600 353 500 294 400 235 300 176 200 118 100 59 Air vo...

Page 48: ...External static pressure pa in w c 20 25 30 60 70 80 90 100 120130140 150160 40 50 110 0 10 0 12 0 16 0 20 0 24 0 28 0 32 0 36 0 40 0 44 0 48 0 52 0 56 0 60 0 64 10 External static pressure pa in w c...

Page 49: ...32 0 36 0 40 0 44 0 48 0 52 0 56 0 60 0 64 0 08 0 04 10 External static pressure pa in w c 20 25 30 60 70 80 90 100 120130140 150160 40 50 110 0 10 0 12 0 16 0 20 0 24 0 28 0 32 0 36 0 40 0 44 0 48 0...

Page 50: ...EKE12BXTMCM WX YEJE12BXTMCM WX 60 208 230V 187V 253V YKKE18BXTMCM RX YKJE18BXTMCM RX 60 208 230V 187V 253V YFKE18BXTMCM RX YFJE18BXTMCM RX 60 208 230V 187V 253V YEKE18BXTMCM WX YEJE18BXTMCM WX 60 208...

Page 51: ...unit Suction Discharge Microphone 1 4m Concealed Duct Type Duct Duct Model Noise level dB A H M L YEKE12BXTMCM WX YEJE12BXTMCM WX 37 5 33 27 5 YEKE18BXTMCM WX YEJE18BXTMCM WX 41 5 38 5 36 YEKE24BXTMCM...

Page 52: ...5m 1m Microphone Model Noise level dB A H M L YFKE18BXTMCM RX YFJE18BXTMCM RX 44 5 41 5 36 5 YFKE24BXTMCM RX YFJE24BXTMCM RX 50 47 39 5 Model Noise level dB A H M L YKKE12BXTMCM RX YKJE12BXTMCM RX 41...

Page 53: ...utdoor unit H 1 0m Outdoor Unit Microphone Note H 0 5 height of outdoor unit Model Noise Level dB A YUKE12BYTMCMO X YUJE12BYTMCMO X 55 YUKE18BYTMCMO X YUJE18BYTMCMO X 57 5 YUKE24BYTMCMO X YUJE24BYTMCM...

Page 54: ...manual 1 EMS It s fitting Magnetic ring twist the electric wires L and N around it to five circles 1 Cassette Units Name Shape Quantity Installation Fittings Installation paper board 1 Tubing Fittings...

Page 55: ...t you have might not be provided the following accessories Expansible hook 4 Installation hook 4 Orifice 1 Ceiling floor Units Name Shape Quantity Remote controller Its holder 1 Remote controller 1 2...

Page 56: ...t Breaker Fuse A 25 20 25 20 Indoor Unit Power Wiring Indoor Outdoor Connecting Wiring Outdoor Unit Power Wiring 3 core cable 14AWG 3 core cable 14AWG Strong Electric Signal 4 core cable 16AWG 4 core...

Page 57: ...54 12 Field Wiring 9K 24K...

Page 58: ...rb the neighbors There is enough room for installation and maintenance The air outlet and the air inlet are not impeded and not face the strong wind It is easy to install the connecting pipes and cabl...

Page 59: ...l ceiling Be sure to hold the drill at a 90 angle to the ceiling 6 Secure the bolt using the washers and nuts provided 7 Install the four suspension bolts 8 Mount the indoor unit with at least two peo...

Page 60: ...nits 1 Take off ventilation panel and flange cut off the staples at side rail 2 Change the mounting positions of ventilation panel and air return flange 3 When installing the filter mesh fit it into t...

Page 61: ...he installation hook depending on the real situation 13 2 2 4 Install the main body Make the 4 suspender through the 4 hanger of the main body to suspend it Adjust the hexangular nuts on the four inst...

Page 62: ...tor of the swing motor and that of the control box with corresponding terminators on the body respectively Note The panel shall be installed after the wiring connected 13 2 3 Ceiling floor unit instal...

Page 63: ...ain body Ceiling installation The only installation method for the unit with drain pump Remove the side board and the grille Locate the hanging arm on the hanging screw bolt Prepare the mounting bolts...

Page 64: ...4 hanger of the main body to suspend it Adjust the hexangular nuts on the four installation hooks evenly to ensure the balance of the body Use a leveling instrument to make sure the levelness of the m...

Page 65: ...water Hang the air in grill to the panel then connect the lead terminator of the swing motor and that of the control box with corresponding terminators on the body respectively Install the 4 corner c...

Page 66: ...pipe length and height drop to decide the installation position Make sure the distance and height drop between indoor and outdoor unit not exceeded the date in the following table Model Max Length Max...

Page 67: ...0 13 4 3 First Time Installation Air and moisture in the refrigerant system cause the following problems Increases in system pressure Increases in operating current Decreases in cooling and heating ef...

Page 68: ...igerant Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut on the 2 way valve approximately 45 until the gauge displays a value between 0 3 to 0 5 Mpa 43...

Page 69: ...n the 2 way and 3 way valves stem nuts Use a torque wrench to tighten the 3 way valves service port cap to a torque of 18N m Be sure to check for gas leaks 2 Air Purging by the Refrigerant Procedure 1...

Page 70: ...ic scale and record the weight 4 Open the valves Low side on the charge set and charge the system with liquid refrigerant If the system cannot be charged with the specified amount of refrigerant or ca...

Page 71: ...owing table is for reference PVC pipe Reference value of inner diameter of Allowable maximum water flowrate l h Remark pipe mm PVC25 20 220 For branch pipe PVC32 25 410 PVC40 31 730 Could be used for...

Page 72: ...pipe B 8 Blowhole setting For the concentrated drainage pipe system there should design a blowhole at the highest point of main pipe to ensure the condensate water discharge smoothly The air outlet s...

Page 73: ...hall cause shutdown of unit When this situation happens the normal startup only can be recovered by turning down power supply and eliminating accumulated water Note Drain plug at the main water contai...

Page 74: ...construction Procedures of special vacuum drying are as follows Vacuum drying for 1 hour Vacuum damage filling nitrogen to reach 0 5Kgf cm2 Because nitrogen is dry gas vacuum damage could achieve the...

Page 75: ...If insulation is not enough it shall form dew and cause leakage Temperature of gas pipe is very high generally 50 100 during heating Insulation work must be carried out to prevent hurt by carelessnes...

Page 76: ...date showing in the table Select different colors for different wire according to relevant regulations Do not use metal wire tube at the place with acid or alkali corrosion adopt plastic wire tube to...

Page 77: ...n or abnormal noise during operation Outdoor unit Whether there is vibration or abnormal noise during operation Whether the generated wind noise or condensed of by the air conditioner have influenced...

Page 78: ...e Hyper heat 30 50 22 122 30 50 22 122 CAUTION 1 If the air conditioner is used beyond the above conditions certain safety protection features may come into operation and cause the unit to operate abn...

Page 79: ...others 15 3 2 Temperature protection of compressor top The unit will stop working when the compressor top temp protector cut off and will restart after the compressor top temp protector restart 15 3 3...

Page 80: ...louver will be active immediately and the indoor fan will open 7s later If the unit runs in heating mode the indoor fan will be also controlled by anti cold wind function 15 3 7 Compressor preheating...

Page 81: ...0 5 4 1 5 2 7 4 5 8 1 3 0 5 4 1 5 2 7 4 5 8 1 3 0 5 4 1 5 2 7 Auto fan in cooling mode acts as follow a b c d 6 0 C 10 8 F T1 Td e H H L 0 75 L H L 0 5 L H L 0 25 L L 5 0 C 9 0 F 4 0 C 7 2 F 2 5 C 4...

Page 82: ...unning frequency to the lower level Hold Keep the current frequency Resume No limitation for frequency 15 4 4 Auto mode This mode can be chosen with remote controller and the setting temperature can b...

Page 83: ...llow me 1 If the indoor PCB receives the signal which results from pressing the FOLLOW ME button on remote controller or wired remote controller the buzzer will emit a sound and this indicates the fol...

Page 84: ...rease and up to the control point LED will alarm and the drain pump open and continue checking the water level If the water level fall down and LED disalarmed drain pump delay close 1 minute and opera...

Page 85: ...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...

Page 86: ...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...

Page 87: ...trolytic Capacitors HIGH VOLTAGE CAUTION For other models For other models connect a discharge resistor approx 100 40W or a soldering iron plug between the and terminals of the electrolytic capacitor...

Page 88: ...nsor T3 malfunction 4 times O F3 Compressor discharge temperature sensor T5 malfunction 5 times O F4 Outdoor unit EEPROM parameter error 6 times O F5 Outdoor fan speed malfunction 8 times O F7 Communi...

Page 89: ...Indoor fan speed malfunction E2 Indoor room temperature sensor T1 malfunction E3 Evaporator coil temperature sensor T2 malfunction EF Refrigerant leakage detection EE Water level alarm malfunction E5...

Page 90: ...eration normally X O 3 Compressor drive board EEPROM error O E5 4 IPM malfunction or IGBT over strong current protection X P0 5 Over voltage or too low voltage protection O O P1 6 Inverter compressor...

Page 91: ...en control board and IPM board J4 18 High pressure protection J5 19 Low pressure protection J6 20 Outdoor IPM module temperature sensor malfunction P7 21 AC voltage protection J8 Outdoor check functio...

Page 92: ...symbol Bit7 Frequency limit caused by IGBT radiator The display value is hex number For example the digital display tube show 2A then Bit5 1 Bit3 1 Bit1 1 It means frequency limit caused by T4 T3 and...

Page 93: ...3 Indoor unit capacity demand code 25 Room temp T1 of 1 indoor unit If the temp is lower than 0 degree the digital display tube will show 0 If the temp is higher than 70 degree the digital display tu...

Page 94: ...allation mistake Faulty PCB Trouble shooting Yes Replace the indoor outdoor main PCB Power off then restart the unit 2 minutes later Does a problem still remain EEPROM a type of read only memory The c...

Page 95: ...or units diagnosis and solution E1 For 9K 24K Error Code E1 Malfunction conditions If the indoor unit does not receive feedback from outdoor unit for 110 seconds 4 consecutive times Potential causes W...

Page 96: ...50V 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 a certain value Remark The old label is L1 L2...

Page 97: ...tion conditions Indoor unit does not receive feedback from outdoor unit for 60 seconds OR outdoor unit does not receive feedback from indoor unit for 120 seconds Possible causes Wiring mistakes Faulty...

Page 98: ...or Code E3 F5 Malfunction conditions When indoor fan speed is too low 300RPM for a certain period of time the unit ceases operation and the LED displays a failure code Potential Causes Wiring mistake...

Page 99: ...y be experiencing problems and need to be replaced DC motor voltage input and output NO Color Signal Voltage 1 Red Vs Vm 200 380V 2 3 Black GND 0V 4 White Vcc 13 5 16 5V 5 Yellow Vsp 0 6 5V 6 Blue FG...

Page 100: ...diagnosis and solution E4 E5 F1 F2 F3 Error Code E4 E5 F1 F2 F3 Malfunction conditions If the sampling voltage is lower than 0 06V or higher than 4 94V the LED displays a failure Potential causes Wir...

Page 101: ...ng as Tcool If the following occurs 3 times the display shows EC and the unit switches off In the first 8 minutes after the compressor starts up if T2 Tcool 2 is not maintained for 4 seconds and compr...

Page 102: ...nction diagnosis and solution Error Code EE Malfunction conditions If the sampling voltage is not 5V the LED will display the failure code Possible causes Wiring mistakes Faulty water level switch Fau...

Page 103: ...nosis and solution P0 Error Code P0 Malfunction conditions When the voltage signal the IPM sends to the compressor drive chip is abnormal the display LED shows P0 and the AC turn Possible causes Wirin...

Page 104: ...101 P U P V...

Page 105: ...102 P W P N...

Page 106: ...tions Abnormal increases or decreases in voltage are detected by checking the specified voltage detection circuit Potential causes Power supply issues System leakage or blockage Faulty PCB Trouble sho...

Page 107: ...ompressor top diagnosis and solution P2 Error Code P2 Malfunction decision conditions If the sampling voltage is not 5V the LED will display the failure Supposed causes Power supply problems System le...

Page 108: ...105 High temperature protection of IPM board diagnosis and solution P2...

Page 109: ...the inverter compressor drive is detected by a special detection circuit which can perform communication signal detection voltage detection and compressor rotation speed signal detection Potential ca...

Page 110: ...nsor malfunction diagnosis and solution P7 Error Code P7 Malfunction conditions If the sampling voltage is lower than 0 06V or higher than 4 94V the LED displays a failure Potential causes Wiring mist...

Page 111: ...ons When evaporator coil temperature is more than 60 C the unit stops It starts again only when the evaporator coil temperature is less than 54 C Possible causes Faulty evaporator coil temperature sen...

Page 112: ...or ambient temperature higher than 50 No Stop the unit Yes Is the outdoor unit ventilation functioning properly Yes Ensure that the outdoor unit ventilate is functioning properly Is the heat exchanger...

Page 113: ...When the compressor discharge temperature T5 is more than 115 for 10 seconds the compressor will stop and not restart until T5 is less than 90 Possible causes Refrigerant leakage Wiring mistake Fault...

Page 114: ...play LED will show J3 and AC will turn off Supposed causes Wiring mistake Faulty IPM board Faulty outdoor fan ass y Compressor malfunction Faulty outdoor PCB At first test the resistance between every...

Page 115: ...112 16 4 16 J4 Malfunction...

Page 116: ...6 4 17 J5 Malfunction Malfunction conditions If the sampling voltage is not 5V the LED displays a failure code Possible causes Wiring mistakes Faulty overload protector System blockages Faulty outdoor...

Page 117: ...4 18 J6 P6 Malfunction Malfunction conditions If the sampling voltage is not 5V the LED displays a failure code Possible causes Wiring mistake Faulty over load protector System blockages Faulty outdo...

Page 118: ...n Malfunction decision conditions An abnormal voltage rise or drop is detected by checking the specified voltage detection circuit Supposed causes Abnormal power supply Wiring mistake Faulty bridge re...

Page 119: ...116...

Page 120: ...Wiring mistake between indoor PCB and auto lifting panel Faulty PCB of auto lifting panel Faulty indoor PCB Communication malfunction between indoor unit and auto lifting panel NO Replace the indoor m...

Page 121: ...n decision conditions Indoor PCB does not get the right close position from the PCB of auto lifting panel when the panel motor stops Possible causes Wiring mistake between indoor PCB and auto lifting...

Page 122: ...Protection F0 Malfunction decision conditions If the outdoor current exceeds the current limit value the LED displays a failure code Possible causes Wiring mistakes Faulty bridge rectifier System bloc...

Page 123: ...er according to Appendix 3 Replace the bridge rectifier No Is the bridge rectifier functioning normally Is the wiring of the reactor or inductance properly wired Reconnect the wiring No Are the reacto...

Page 124: ...or 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 discharg...

Page 125: ...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 33 326...

Page 126: ...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 2 174...

Page 127: ...124 Appendix 3 10 11 12 13 14 15 16 17 18 19 20 21 22 48 50 52 54 56 58 60 62 64 66 68 70 72 23 24 25 26 27 28 29 30 31 32 33 34 35 74 76 78 80 82 84 86 88 90 92 94 96 98...

Page 128: ...he resistance value of each winding by using the tester Position Resistance Value ASN98D22UFZ ASM135D23UFZ ATF235D22UMT ATF250D22UMT ATF310D43UMT ATQ420D1UMU ATM115D43UFZ2 Blue Red 1 57 1 75 0 75 0 75...

Page 129: ...ce value Red Black Several M Red Black Several M P N U N U V V W W Red 4 Pressure on Service Port Cooling chart COOLING MODE Indoor Temp Outdoor temp 75 23 89 85 29 44 95 35 105 40 56 115 46 11 BAR 70...

Page 130: ...AR 55 30 3 28 5 25 3 22 8 20 8 BAR 65 32 5 30 0 26 6 25 4 23 3 BAR 75 33 8 31 5 27 8 26 3 24 9 PSI 55 439 413 367 330 302 PSI 65 471 435 386 368 339 PSI 75 489 457 403 381 362 MPA 55 3 03 2 85 2 53 2...

Page 131: ...3 57 3 59 3 59 3 59 3 79 3 85 3 85 3 85 3 90 3 90 3 90 3 90 4 19 4 19 4 19 4 19 S T 0 67 0 73 0 79 0 84 0 57 0 62 0 68 0 73 0 52 0 57 0 62 0 68 0 40 0 45 0 50 0 55 PI 0 67 0 67 0 67 0 67 0 66 0 66 0 6...

Page 132: ...58 0 67 0 75 0 84 0 52 0 60 0 68 0 76 0 36 0 44 0 51 0 59 PI 0 71 0 71 0 71 0 71 0 71 0 71 0 71 0 71 0 71 0 71 0 71 0 71 0 70 0 70 0 70 0 70 25 TC 3 43 3 43 3 46 3 49 3 63 3 63 3 63 3 63 3 75 3 75 3...

Page 133: ...35 0 44 0 53 0 63 PI 0 72 0 72 0 72 0 72 0 72 0 72 0 72 0 72 0 72 0 72 0 72 0 72 0 72 0 72 0 72 0 72 25 TC 3 49 3 52 3 55 3 57 3 69 3 69 3 69 3 72 3 81 3 81 3 81 3 81 4 09 4 09 4 09 4 09 S T 0 79 0 90...

Page 134: ...0 37 0 44 0 51 0 57 PI 1 04 1 04 1 04 1 04 1 03 1 03 1 03 1 03 1 03 1 03 1 03 1 03 1 04 1 04 1 04 1 04 20 TC 5 24 5 24 5 24 5 30 5 56 5 56 5 56 5 56 5 73 5 73 5 73 5 73 6 13 6 13 6 13 6 13 S T 0 71 0...

Page 135: ...6 02 6 02 6 02 S T 0 75 0 85 0 95 1 00 0 59 0 69 0 78 0 88 0 52 0 61 0 70 0 80 0 35 0 44 0 52 0 61 PI 1 22 1 22 1 22 1 22 1 21 1 21 1 21 1 21 1 21 1 21 1 21 1 21 1 22 1 22 1 22 1 22 30 TC 4 87 4 87 4...

Page 136: ...1 11 1 11 1 11 25 TC 5 22 5 28 5 33 5 39 5 56 5 56 5 56 5 62 5 73 5 73 5 73 5 73 6 16 6 16 6 16 6 16 S T 0 79 0 90 1 00 1 00 0 61 0 72 0 83 0 93 0 53 0 63 0 74 0 85 0 34 0 44 0 54 0 64 PI 1 24 1 24 1...

Page 137: ...0 38 0 44 0 50 0 56 PI 1 36 1 36 1 36 1 36 1 35 1 35 1 35 1 35 1 36 1 36 1 36 1 36 1 35 1 35 1 35 1 35 20 TC 7 01 7 00 7 00 7 06 7 43 7 43 7 43 7 43 7 66 7 66 7 66 7 66 8 21 8 21 8 21 8 21 S T 0 69 0...

Page 138: ...8 04 8 04 8 04 S T 0 79 0 90 1 00 1 00 0 61 0 72 0 83 0 93 0 53 0 64 0 74 0 85 0 34 0 44 0 54 0 64 PI 1 59 1 59 1 59 1 59 1 59 1 59 1 59 1 59 1 59 1 59 1 59 1 59 1 59 1 59 1 59 1 59 30 TC 6 52 6 57 6...

Page 139: ...1 45 1 45 1 45 25 TC 6 98 7 03 7 09 7 15 7 41 7 41 7 41 7 49 7 64 7 64 7 64 7 72 8 21 8 21 8 21 8 21 S T 0 82 0 94 1 00 1 00 0 63 0 75 0 87 0 98 0 54 0 65 0 77 0 88 0 34 0 44 0 55 0 66 PI 1 62 1 62 1...

Page 140: ...9 0 58 0 67 0 76 0 84 0 52 0 60 0 68 0 77 0 36 0 44 0 51 0 59 PI 1 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 20 TC 5 24 5 24 5 30 5 36 5 56 5 56 5 56 5 56 5 73 5 73...

Page 141: ...05 1 05 1 05 25 TC 5 10 5 10 5 16 5 22 5 42 5 42 5 42 5 48 5 59 5 59 5 59 5 59 6 02 6 02 6 02 6 02 S T 0 77 0 88 0 98 1 00 0 60 0 70 0 81 0 90 0 53 0 62 0 72 0 82 0 35 0 44 0 53 0 62 PI 1 17 1 17 1 17...

Page 142: ...08 1 08 1 08 1 08 1 08 1 08 1 08 1 08 1 07 1 07 1 07 1 07 25 TC 5 22 5 28 5 33 5 39 5 56 5 56 5 56 5 62 5 73 5 73 5 73 5 73 6 16 6 16 6 16 6 16 S T 0 80 0 91 1 00 1 00 0 62 0 73 0 84 0 95 0 53 0 64 0...

Page 143: ...0 35 0 44 0 52 0 60 PI 1 35 1 35 1 35 1 35 1 35 1 35 1 35 1 35 1 35 1 35 1 35 1 35 1 34 1 34 1 34 1 34 20 TC 7 01 7 00 7 06 7 12 7 43 7 43 7 43 7 43 7 66 7 66 7 66 7 66 8 21 8 21 8 21 8 21 S T 0 74 0...

Page 144: ...8 04 8 04 8 04 S T 0 79 0 91 1 00 1 00 0 62 0 73 0 84 0 94 0 53 0 64 0 75 0 86 0 34 0 44 0 54 0 64 PI 1 58 1 58 1 58 1 58 1 58 1 58 1 58 1 58 1 58 1 58 1 58 1 58 1 58 1 58 1 58 1 58 30 TC 6 52 6 57 6...

Page 145: ...1 44 1 44 1 44 25 TC 6 98 7 03 7 09 7 15 7 41 7 41 7 41 7 49 7 64 7 64 7 64 7 64 8 21 8 21 8 21 8 21 S T 0 81 0 93 1 00 1 00 0 62 0 74 0 86 0 97 0 54 0 65 0 76 0 88 0 34 0 44 0 55 0 65 PI 1 61 1 61 1...

Page 146: ...0 36 0 44 0 51 0 58 PI 0 63 0 62 0 62 0 63 0 62 0 62 0 62 0 62 0 62 0 62 0 62 0 62 0 63 0 63 0 63 0 63 20 TC 3 53 3 54 3 54 3 57 3 75 3 75 3 75 3 75 3 86 3 86 3 86 3 86 4 15 4 15 4 15 4 15 S T 0 72 0...

Page 147: ...4 04 4 04 4 04 S T 0 76 0 86 0 96 1 00 0 60 0 69 0 79 0 89 0 52 0 62 0 71 0 80 0 35 0 44 0 52 0 61 PI 0 73 0 73 0 73 0 73 0 73 0 73 0 73 0 73 0 73 0 73 0 73 0 73 0 73 0 73 0 73 0 73 30 TC 3 26 3 26 3...

Page 148: ...0 68 0 68 0 68 25 TC 3 49 3 52 3 55 3 57 3 69 3 69 3 69 3 72 3 81 3 81 3 81 3 81 4 09 4 09 4 09 4 09 S T 0 81 0 93 1 00 1 00 0 62 0 74 0 86 0 97 0 54 0 65 0 76 0 88 0 34 0 44 0 55 0 66 PI 0 74 0 74 0...

Page 149: ...0 36 0 44 0 52 0 60 PI 1 36 1 36 1 36 1 36 1 35 1 35 1 35 1 35 1 36 1 36 1 36 1 36 1 35 1 35 1 35 1 35 20 TC 7 01 7 00 7 06 7 12 7 43 7 43 7 43 7 43 7 66 7 66 7 66 7 66 8 21 8 21 8 21 8 21 S T 0 74 0...

Page 150: ...8 04 8 04 8 04 S T 0 81 0 93 1 00 1 00 0 62 0 74 0 85 0 96 0 54 0 65 0 76 0 87 0 34 0 44 0 55 0 65 PI 1 59 1 59 1 59 1 59 1 59 1 59 1 59 1 59 1 59 1 59 1 59 1 59 1 59 1 59 1 59 1 59 30 TC 6 52 6 57 6...

Page 151: ...1 45 1 45 1 45 25 TC 6 98 7 03 7 09 7 15 7 41 7 41 7 49 7 58 7 64 7 64 7 64 7 72 8 21 8 21 8 21 8 21 S T 0 84 0 97 1 00 1 00 0 64 0 76 0 89 1 00 0 55 0 67 0 79 0 91 0 33 0 45 0 56 0 68 PI 1 62 1 62 1...

Page 152: ...62 2 59 2 59 0 85 0 88 0 90 0 90 7 0 2 77 2 74 2 72 2 72 0 90 0 93 0 95 0 96 5 6 2 84 2 81 2 78 2 78 0 91 0 94 0 95 0 97 2 8 2 89 2 87 2 84 2 84 0 92 0 96 0 97 0 99 0 0 2 92 2 87 2 87 2 84 0 94 0 97...

Page 153: ...84 3 81 1 31 1 35 1 38 1 39 7 0 4 08 4 02 4 02 3 99 1 39 1 43 1 46 1 48 5 6 4 18 4 12 4 12 4 09 1 40 1 44 1 47 1 49 2 8 4 27 4 24 4 21 4 18 1 42 1 47 1 49 1 52 0 0 4 32 4 27 4 24 4 21 1 44 1 49 1 52 1...

Page 154: ...17 5 14 1 64 1 69 1 72 1 74 7 0 5 50 5 45 5 42 5 39 1 74 1 79 1 83 1 85 5 6 5 65 5 59 5 56 5 54 1 75 1 81 1 84 1 86 2 8 5 80 5 71 5 68 5 65 1 78 1 83 1 86 1 89 0 0 5 85 5 80 5 74 5 71 1 80 1 86 1 89 1...

Page 155: ...06 4 04 1 33 1 38 1 40 1 42 7 0 4 31 4 29 4 26 4 23 1 42 1 46 1 49 1 51 5 6 4 38 4 35 4 33 4 30 1 43 1 47 1 49 1 52 2 8 4 44 4 41 4 38 4 35 1 45 1 49 1 51 1 54 0 0 4 47 4 41 4 38 4 35 1 46 1 51 1 53 1...

Page 156: ...50 5 47 1 54 1 59 1 60 1 63 7 0 5 84 5 79 5 76 5 73 1 63 1 68 1 70 1 73 5 6 5 93 5 87 5 84 5 81 1 64 1 68 1 71 1 73 2 8 5 98 5 93 5 90 5 87 1 65 1 70 1 72 1 75 0 0 5 98 5 90 5 87 5 84 1 66 1 71 1 74...

Page 157: ...26 2 26 0 77 0 79 0 81 0 82 7 0 2 42 2 39 2 36 2 36 0 82 0 84 0 86 0 87 5 6 2 54 2 51 2 48 2 48 0 83 0 85 0 86 0 88 2 8 2 66 2 63 2 60 2 60 0 84 0 86 0 88 0 89 0 0 2 74 2 69 2 69 2 66 0 85 0 88 0 89 0...

Page 158: ...62 3 59 1 33 1 36 1 38 1 41 7 0 3 84 3 82 3 79 3 76 1 41 1 45 1 47 1 50 5 6 4 05 4 02 3 99 3 96 1 41 1 46 1 48 1 50 2 8 4 22 4 19 4 16 4 13 1 43 1 48 1 50 1 53 0 0 4 37 4 31 4 28 4 25 1 45 1 50 1 53 1...

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