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Installation and Maintenance

Service Manual

Installation and Maintenance

Service Manual

8. Installation

8.1 Installation Dimension Diagram

Space to the ceiling

Space to the wall

At least 15cm

At least 250cm

Space to the wall

Space to the obstruction

olf

eht

Space to the obstruction

Drainage pipe

Space to the wall

Space to the obstruction

Space to the obstructio

Space to the obstruction

At least 300cm

At least 50cm

At least 200cm

At least 30cm

At least 50cm

Содержание L4VI32-16

Страница 1: ...SERVICE MANUAL ENGLISH WALL MOUNTED UNIT AIR CONDITIONING SYSTEMS MODELS L4VI32 18 L4VO32 18 L4VI32 24 L4VO32 24...

Страница 2: ...Service Manual...

Страница 3: ...ram 14 6 Function and Control 16 6 1 Remote Controller Introduction 16 6 2 Preparation before operation 16 6 3 Introduction of operation function 16 6 4 Introduction of special functions 18 6 4 Brief...

Страница 4: ...ting for Normal Malfunction 60 10 Exploded View and Parts List 62 10 1 Indoor Unit 62 10 2 Outdoor Unit 66 11 Removal Procedure 70 11 1 Removal Procedure of Indoor Unit 70 11 2 Removal Procedure of Ou...

Страница 5: ...chnical Information 1 Service Manual 1 Technical Information Service Manual Part Technical Information Indoor Unit L4VI32 18 L4VI32 24 1 Summary Outdoor Unit L4VO32 24 L4VO32 18 Remote Controller YAN1...

Страница 6: ...0 5 1 3 4 Application Area m2 23 34 Indoor Unit Indoor Unit Model L4VI32 18 Fan Type Fan Diameter Length DXL mm 106X706 Cooling Speed SH H M L SL r min 1230 1130 1030 800 Heating Speed SH H M L SL r m...

Страница 7: ...or RLA A 0 62 Fan Motor Capacitor F Outdoor Unit Air Flow Volume m3 h 2400 Fan Type Fan Diameter mm 445 Defrosting Method Automatic Defrosting Climate Type T1 Isolation I Moisture Protection IPX4 Perm...

Страница 8: ...W 4 0 5 1 3 3 Application Area m2 23 34 Indoor Unit Indoor Unit Model L4VI32 24 Fan Type Fan Diameter Length DXL mm 108X830 Cooling Speed SH H M L SL r min 1250 1000 900 800 Heating Speed SH H M L SL...

Страница 9: ...tor RLA A 0 58 Fan Motor Capacitor F Outdoor Unit Air Flow Volume m3 h 3200 Fan Type Fan Diameter mm 520 Defrosting Method Automatic Defrosting Climate Type T1 Isolation I Moisture Protection IPX4 Per...

Страница 10: ...ons Indoor DB27 C WB19 C Outdoor DB35 C WB24 C Indoor air flow High Pipe length 5m Conditions Indoor DB20 C WB15 C Outdoor DB7 C WB6 C Indoor air flow High Pipe length 5m Cooling Heating Cooling Heati...

Страница 11: ...2 C 27 19 35 24 18K 0 9 to 1 1 12 to 14 75 to 37 Super High High 52 24K 72 Rated heating condition C DB WB Model Pressure of gas pipe connecting indoor and outdoor unit Inlet and outlet pipe temperatu...

Страница 12: ...anual 2 5 Noise Curve Indoor side noise when blowing Outdoor side noise when blowing Indoor fan motor rotating speed Compressor frequency Hz Noise dB A 50 60 30 40 20 Low Middle High Super High 50 52...

Страница 13: ...ice Manual 14 Technical Information Service Manual 3 Outline Dimension Diagram 3 1 Indoor Unit W 24K 18K D H 79 154 43 206 685 187 70 70 43 104 685 181 140 190 38 55 55 38 Model W H D 18K 970 300 224...

Страница 14: ...Technical Information 10 Service Manual 15 Technical Information Service Manual 899 818 596 378 303 343 550 Unit mm 340 963 700 396 890 560 364 Unit mm 3 2 Outdoor Unit 18K 24K...

Страница 15: ...ion pipe specification Liquid pipe 1 4 6mm Gas pipe 1 2 12mm 18K Gas pipe 5 8 16mm 24K Indoor unit Outdoor unit COOLING HEATING 4 Way valve Discharge Suction Heat exchanger evaporator Heat exchanger c...

Страница 16: ...ction Symbol Symbol Color Symbol Symbol Color Symbol Name WH White GN Green CAP Jumper cap YE Yellow BN Brown COMP Compressor RD Red BU Blue Grounding wire YEGN Yellow Green BK Black VT Violet OG Oran...

Страница 17: ...tion 13 Service Manual 20 Technical Information Service Manual These circuit diagrams are subject to change without notice please refer to the one supplied with the unit L4VO32 18 L4VO32 24 Outdoor Un...

Страница 18: ...e 1 2 3 4 Interface of health function live wire 5 Interface of up down swing motor Interface of PG feedback 6 Neutral wire interface of cold plasma only for the mode with this function 7 WIFI 8 Tempe...

Страница 19: ...3 14 15 Compressor three phase input interface Terminal of system high pressure protection Compressor overload protection terminal Terminal of electronic expansion valve Terminal for low pressure prot...

Страница 20: ...batteries please set the time of the system according to current time in the following steps 1 Pressing CLOCK button is blinking 2 Pressing or button the clock time will increase or decrease rapidly...

Страница 21: ...er light board or wired controller is defaulted to display setting temperature Press TEMP button to view indoor or outdoor ambient temperature When is displayed it means the displayed temperature is s...

Страница 22: ...2 Setting timer on Pressing TON button ON is blinking and time displaying zone displays the timer time of last setting Press or button to adjust the timer time Press TON button again to confirm setti...

Страница 23: ...i v i e c e r s t i n i h t i w d e m r o f r e p e b d l u o h s r e l l o r t n o c e t o m e r f o n o i t a r e p o e h T If you need to control the main unit please point the remote controller a...

Страница 24: ...emperature is the set value under each condition Ambient temperature is Tamb Tcompensation for heat pump unit and Tamb for cooling only unit 4 If theres I feel function Tcompensation is 0 Others are s...

Страница 25: ...recycling it will be still in standby mode after finishing refrigerant recycling if the unit is in ON status before refrigerant recycling it will still run in original operation mode 11 Ambient temper...

Страница 26: ...of cooling operation 1 If the compressor is shut down and Tset up Tindoor ambient temperature Tcooling indoor ambient temperature compensation 0 5 C start up the machine for cooling the cooling opera...

Страница 27: ...compressor is switched on 2 Defrosting a Defrosting starts the compressor is shut down and restarts it after 55 second delay b Defrosting ends the compressor stops then starts it after 55 second dela...

Страница 28: ...to start otherwise it should not be started and should be stopped to treat according to the overload protection Clear the trouble at the mode of power turn off heating and the protection times are no...

Страница 29: ...cy reducing temperature at normal speed during discharging you should limit the frequency raising of compressor 3 Reducing frequency at normal speed and stopping machine If Tfrequency reducing tempera...

Страница 30: ...u should adjust the compressor frequency by reducing 30Hz 90s till the lower limit After it was running 90s at the lower limit if T frequency reducing temperature at normal speed of module TModule you...

Страница 31: ...unning it should be regarded as four way valve reversion abnormity And then it can run if stop the reversion abnormity protection for four way valve 3 min and if it still cant run when the reversion a...

Страница 32: ...of chassis will stop operation 3 When 0 C Toutdoor amb 2 C the electric heating of chassis will keep original status 7 Electric Heating Function of Compressor 1 When Toutdoor amb 5 C compressor stops...

Страница 33: ...d maintenance 5 Have the unit adequately grounded The grounding wire cant be used for other purposes 6 Must apply protective accessories such as protective boards cable cross loop and wire clip 7 The...

Страница 34: ...n injury 6 Prohibit installing the unit at the place where there may be leaked corrosive gas or flammable gas If there leaked gas around the unit it may cause explosion and other accidents 7 Do not us...

Страница 35: ...tenance area The naked flame is prohibited in the maintenance area and the no smoking warning board should be hanged Check whether the appliance mark is in good condition Replace the vague or damaged...

Страница 36: ...e 1 Level meter measuring tape 4 Electroprobe 7 Electronic leakage detector 10 Pipe pliers pipe cutter 2 Screw driver 5 Universal meter 8 Vacuum pump 11 Pipe expander pipe bender 3 Impact drill drill...

Страница 37: ...wall At least 15cm At least 15cm At least 15cm At least 250cm Space to the wall S p a c e t o t h e o b s t r u c t i o n r o o l f e h t o t e c a p S Space to the obstruction Drainage pipe Space to...

Страница 38: ...ipes and hang the indoor unit Make the bound pipes pass through the wall hole and then connect outdoor unit Neaten the pipes Vacuum pumping and leakage detection Check after installation and test oper...

Страница 39: ...t a location where the condensation water can be dispersed easily andwont affect other people 3 Select a location which is convenient to connect the outdoor unit and near the power socket 4 Select a l...

Страница 40: ...to the following table for wrench moment of force Fig 5 Fig 6 Fig 7 5 Connect the Pipe of Indoor Unit 1 Aim the pipe joint at the corresponding bellmouth As show in Fig 5 2 Pretightening the union nut...

Страница 41: ...ng to a certain degree separate the indoor power and then separate the drain hose As show in Fig 15 3 Bind them evenly 4 The liquid pipe and gas pipe should be bound separately at the end 2 Make the p...

Страница 42: ...oles of outdoor unit with bolts As show in Fig 20 4 Connect Indoor and Outdoor Pipes 1 Remove the screw on the handle and valve cover of outdoor unit and then remove the handle and valve cover As show...

Страница 43: ...ut of refrigerant charging vent 2 Connect the charging hose of piezometer to the refrigerant charging vent of gas valve and then connect the other charging hose to the vacuum pump 3 Open the piezomete...

Страница 44: ...perature sensor is open short circuited F1 Indoor evaporator temperature sensor is open short circuited F2 Module temperature sensor is open short circuited P7 Outdoor ambient temperature sensor is op...

Страница 45: ...or on PC Board for 30s and then peformedischarging NOTE A large capacity electrolytic capacitor is used in the outdoor unit controller inverter Therefore if the power supply is turned off charge charg...

Страница 46: ...sensor broken Is mainboard broken Malfunction diagnosis process Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted Start Insert the temperature sens...

Страница 47: ...inal is firm Check if the connection of PG motor control terminal is firm Turn on the unit again measure whether the output voltage on control terminal for PG motor is more than 50V within 1 min after...

Страница 48: ...en Detection circuit of the mainboard is defined abnormal Malfunction diagnosis process Start Is there jumper cap on the mainboard Is the jumper cap inserted correctly and tightly Replace the jumper c...

Страница 49: ...while the capacitordischarges slowly The zero cross detectioncircuit of the mainboard is defined abnormal Malfunction diagnosis process Turn power off for 1minute the turn back on The unit returns to...

Страница 50: ...roperly according to the wiring diagram Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Main board matches with display board Main board of IDU...

Страница 51: ...nd Maintenance Service Manual 6 Malfunction of detecting plate WIFI JF Start Is malfunction eliminated The end check if the connection wire are correctly connected Replace the detecting plate with the...

Страница 52: ...synchronizing malfunction occurs after de energizing and turning on the unit Whether stop time for compressor is more than 3min No No No No No No No Yes Yes Yes Yes Yes No Yes Yes Yes Yes Whether valv...

Страница 53: ...umstances for the unit such as clean heat exchanger improve ventilation etc Turn on the unit again after the power voltage is resumed Charge refrigerant according to service manual Whether the outdoor...

Страница 54: ...in board is damaged Malfunction diagnosis process Start the troubleshooting for temperature sensor Check the connection between temperature sensor and wiring terminal is loose or in poor connection Ch...

Страница 55: ...f overload protector under ambient temperature Whether the resistance 1K Whether wire connection wire electronic expansion valve is in good condition Check the coil of electronic expansion valve If it...

Страница 56: ...nd turn on the unit wait for 1 min There is malfunction for the detection circuit on main board of outdoor unit Check the input power and resume the power supply normal Is malfunction eliinated Measur...

Страница 57: ...unit Check whether the fan terminal is connected well Whether the fan is damaged Replace fan capacitor unavailable for DC fan Replace outdoor fan Whether outdoor ambient temperature is more than 53o...

Страница 58: ...n on the unit Whether compressor wires are connected correctly Whether therere above circumstances Connect compressor wires according to correct wiring method Modify it according to Service Manual and...

Страница 59: ...vice Manual 7 Malfunction of PFC Protection HC Main check point Whether power supply is normal Malfunction diagnosis process Start Check whether power supply is normal Is power abnormal Replace main b...

Страница 60: ...ndoor unit or main board of outdoor unit is damaged Malfunction diagnosis process Communication malfunction De energize the unit and then check whether connection wires between indoor unit and outdoor...

Страница 61: ...on the unit Whether the stop time for compressor is more than 3min Whether compressor wires are connected correctly The stop time for unit is not enough high pressure and low pressure of system are u...

Страница 62: ...ressure nitrogen Replace the compressor Replace the mainboard with the same model End Is the supply voltage too low with overload Is the indoor outdoor heat exchanger dirty or are the air inlet and ou...

Страница 63: ...of outdoor fan etc 3 Detection circuit malfunctions of phase current of compressor U1 Hardware of main board is damaged Please replace main board 4 DC busbar voltage is too high PH Input voltage is t...

Страница 64: ...nt 4 of maintenance method for details Malfunction of compressor Compressor cant operate Refer to point 5 of maintenance method for details 9 3 Troubleshooting for Normal Malfunction 1 Air Conditioner...

Страница 65: ...n Water leaking from drain pipe Replace drain pipe Wrapping is not tight Water leaking from the pipe connection place of indoor unit Wrap it again and bundle it tightly 5 Compressor Cant Operate Possi...

Страница 66: ...and Maintenance 62 Service Manual 80 Installation and Maintenance Service Manual 10 Exploded View and Parts List 10 1 Indoor Unit 18K The component picture is only for reference please refer to the ac...

Страница 67: ...tor Assy 011001000207 1 18 Cross Flow Fan 10352060 1 19 Fan Motor 1501214502 1 20 Motor Press Plate 26112511 1 21 Wall Mounting Frame 01362026 1 22 Connecting pipe clamp 2611218801 1 23 Crank 73012005...

Страница 68: ...Installation and Maintenance 64 Service Manual 86 Installation and Maintenance Service Manual 24K The component picture is only for reference please refer to the actual product...

Страница 69: ...tor 1114001602 1 16 Wall Mounting Frame 01252229 1 17 Motor Press Plate 26112515 1 18 Fan Motor 15012145 1 19 Connecting pipe clamp 26112514 1 20 Drainage Hose 0523001405 1 21 Stepping Motor 152124021...

Страница 70: ...Installation and Maintenance 66 Service Manual 92 Installation and Maintenance Service Manual 10 2 Outdoor Unit The component picture is only for reference please refer to the actual product 18K...

Страница 71: ...1 10 Cut off Valve Sub Assy 07133774 1 11 Valve Cover 22243005 1 12 Big Handle 2623343106 1 13 Right Side Plate 0130324403P 1 14 4 Way Valve Coil 4300040087 1 15 Wire Clamp 71010103 1 16 Temperature...

Страница 72: ...Installation and Maintenance 68 Service Manual 96 Installation and Maintenance Service Manual 24K The component picture is only for reference please refer to the actual product...

Страница 73: ...1 14 Handle 26233053 1 15 Wiring Clamp 16 Rear Grill 01475020 1 17 Condenser Assy 011002000244 1 18 Reactor 19 Clapboard Assy 01235081 1 20 Coping 012049000007P 1 21 Supporting Board Condenser 017950...

Страница 74: ...make them break away from thegroove on the front case Then remove the leftand right filters one by one Push out the axile bush on horizontal louver Bend the horizontal louver with hand and then separa...

Страница 75: ...g the screws arround the air outlet The quantity of screws fixing the front case sub assy is different for different models Loosen the connection clasps between front case sub assy and bottom case Lif...

Страница 76: ...x sub assy Remove the screw fixing electric box assy Swing motor Indoor tube temperature sensor Main board Wiring terminal of motor Wiring terminal of stepping motor Grounding Wire binder Cut off the...

Страница 77: ...ffthe screwsthat are locking the wire clip and loosen the power cord Remove the wiring terminal of power cord Lift up the main board and take it off Instruction Some wiring terminal of this products i...

Страница 78: ...on of conncetion pipe on evaporator up wards to remove it Remove the screws fixing motor clamp and then remove the motor clamp Remove the screws at the connection place of cross flow blade and motor l...

Страница 79: ...cedure Step 2 Remove top panel 1 Remove big handle Remove the screw fixing big handle slide out the big handle down wards to make the clasp of big handle separate from the groove of right side plate a...

Страница 80: ...4 Remove cabinet Screw Screw Screw Remove the screws fixing right side plate and then remove the right side plate 5 Remove right side plate and rear grill Screw Screw Cabinet Right side plate Rear gr...

Страница 81: ...ate and then remove the letf side plate 6 Remove lef side plate Procedure Step Nut Axial flow blade 7 Remove axial flow blade 8 Remove electric box assy Remove the screws fixing electric box assy pull...

Страница 82: ...ove the screws fixing motor support and then remove the motor support 10 Remove motor support Spot weld 4 way valve assy 11 Remove 4 way valve assy Unsolder the spot weld of 4 way valve assy compresso...

Страница 83: ...te Protect the ports of discharge pipe and suction pipe to avoid foreign objects to enter it 12 Remove compressor Procedure Step 13 Remove clapboard Screw Clapboard Remove the screws fixing clapboard...

Страница 84: ...llation and Maintenance 80 Service Manual 109 Installation and Maintenance Service Manual Procedure Step Screw Condenser Remove one screw fixing the condenser then remove the condenser 15 Remove conde...

Страница 85: ...val 24K Twist off the screws used for fixing the handle and valve cover pull the handle and valve cover up ward to remove it b a a 1 Remove top panel Remove handle valve top panel top panel the 3 scre...

Страница 86: ...outer case with right side plate and left side plate and then remove the outer case Remove the screws connecting the right side plate with electric box assy valve support chassis and condenser side pl...

Страница 87: ...move the motor Remove the 2 screws connecting the motor support and chassis and then loosen the stopper to remove the motor support Remove the screws fixing the electric box sub assy loosen the wire b...

Страница 88: ...welding joints connecting electronic expansion valve assy the 4 way valve assy with capillary sub assy compressor and condenser remove the electronic expansion valve assy and 4 way valve Note Before u...

Страница 89: ...hion Note Keep the ports of discharge pipe and suction pipe from foreign objects Remove the screws connecting the support condenser and condenser assy and then remove the support condenser Remove the...

Страница 90: ...onnection pipe 5m 7 5m 8m 2 Min length of connection pipeFor the unit with standard connection pipe of 5m there is no limitation for themin length of connection pipe For the unit with standard connect...

Страница 91: ...pipe according to the following steps A Cut the pip Confirm the pipe length according to the distance of indoor unit and outdoor unit Cut the required pipe with pipe cutter B Remove the burrs Remove t...

Страница 92: ...71 2 523 110 0 758 6 66 88 33 10 63 72 2 439 111 0 737 5 63 46 34 10 2 73 2 358 112 0 717 4 60 23 35 9 779 74 2 28 113 0 697 3 57 18 36 9 382 75 2 206 114 0 678 2 54 31 37 9 003 76 2 133 115 0 66 1 5...

Страница 93: ...33 14 18 72 3 252 111 0 983 5 84 61 34 13 59 73 3 144 112 0 956 4 80 31 35 13 04 74 3 04 113 0 93 3 76 24 36 12 51 75 2 94 114 0 904 2 72 41 37 12 76 2 844 115 0 88 1 68 79 38 11 52 77 2 752 116 0 856...

Страница 94: ...3 32 16 384 5 23 53 74 62 11 32 101 3 22 15 362 9 24 51 41 63 10 93 102 3 13 14 342 8 25 49 19 64 10 54 103 3 04 13 323 9 26 47 08 65 10 18 104 2 96 12 306 2 27 45 07 66 9 83 105 2 87 11 289 6 28 43...

Страница 95: ......

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