Table of Contents
Troubleshooting
Related Manuals for Lennox LI009HI-160T432
Summary of Contents for Lennox LI009HI-160T432
- Page 1 Service Manual Models: LI009HI-160T432 LI009HO-160T432 LI012HI-160T432 LI012HO-160T432 LI018HI-160T432 LI018HO-160T432 LI024HI-160T432 LI024HO-160T432 (Refrigerant R410A) Thank you for selecting LENNOX air conditioners.
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Page 2: Table Of Contents
Service Manual Table of Contents Part Ⅰ : Technical Information ...............1 1. Summary ........................1 2. Specifications ......................2 2.1 Specification Sheet ......................2 2.2 Operation Characteristic Curve ..................6 2.3 Capacity Variation Ratio According to Temperature ............6 2.4 Cooling and Heating Data Sheet in Rated Frequency .............6 2.5 Noise Curve ........................7 3. - Page 3 Service Manual 9. Maintenance ......................42 9.1 Malfunction Display of Indoor Unit ..................42 9.2 Procedure of Troubleshooting ..................44 9.3 Troubleshooting for Normal Malfunction .................61 10. Exploded View and Parts List ..............63 10.1 Indoor Unit ........................63 10.2 Outdoor Unit .........................67 11. Removal Procedure ..................71 11.1 Removal Procedure of Indoor Unit ................71 11.2 Removal Procedure of Outdoor Unit ................81...
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Page 4: Part Ⅰ : Technical Information
Service Manual Part Ⅰ : Technical Information 1. Summary Indoor Unit LI009HI-160T432 LI012HI-160T432 LI018HI-160T432 LI024HI-160T432 Outdoor Unit LI009HO-160T432 LI012HO-160T432 LI018HO-160T432 LI024HO-160T432 Remote Controller Y6334 Technical Information... -
Page 5: Specifications
Service Manual 2. Specifications 2.1 Specification Sheet Parameter Unit Value LI009HI-160T432 LI012HI-160T432 Model LI009HO-160T432 LI012HO-160T432 Product Code Y6732 Y6733 Y6734 Y6735 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity(Min~Max) 2600(450~3230) 3500(600~3960) Heating Capacity(Min~Max) - Page 6 Service Manual Outdoor Unit Model LI009HO-160T432 Y6734 Outdoor Unit Product Code Y6733 Y6735 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer CO.,LTD. CO.,LTD. Compressor Model QXA-A086zC190 QXA-A086zC190 Compressor Oil RB68EP RB68EP Compressor Type Rotary Rotary Compressor LRA. Compressor RLA Compressor Power Input Compressor Overload Protector 1NT11L-6233 1NT11L-6233...
- Page 7 Service Manual Parameter Unit Value LI018HI-160T432 LI024HI-160T432 Model LI018HO-160T432 LI024HO-160T432 Product Code Y6736 Y6737 Y6738 Y6739 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity(Min~Max) 5130(1260~6600) 6700(2000~8200) Heating Capacity(Min~Max) 5275(1120~6800) 7250(2000~8500) Cooling Power Input(Min~Max) 1580(380~2450) 1875(400~3700) Heating Power Input(Min~Max)
- Page 8 Service Manual Outdoor Unit Model LI018HO-160T432 LI024HO-160T432 Outdoor Unit Product Code Y6737 Y6739 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer CO.,LTD CO,LTD. Compressor Model QXA-B141zF030 QXAS-D23zX090A Compressor Oil 68EP FV50S Compressor Type Rotary Rotary Compressor LRA. Compressor RLA 11.50 Compressor Power Input 1440 2550...
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Page 9: Operation Characteristic Curve
Service Manual 2.2 Operation Characteristic Curve Cooling Heating 220V Conditions 220V Indoor: DB27°C/WB19°C Outdoor: DB35°C/WB24°C Indoor air flow: High Pipe length: 5m 230V 230V 240V Conditions Indoor: DB20°C/WB15°C 240V Outdoor: DB7°C/WB6°C Indoor air flow: High Pipe length: 5m 10 20 30 40 50 60 70 80 90 100 Compressor speed (rps) Compressor speed (rps) 2.3 Capacity Variation Ratio According to Temperature... -
Page 10: Noise Curve
Service Manual 2.5 Noise Curve LI009HI-160T432 LI009HO-160T432;LI012HI-160T432 LI012HO-160T432 Indoor side noise when blowing Outdoor side noise when blowing LI012HI-160T432 LI009HI-160T432 Super High Middle High Indoor fan motor rotating speed Compressor frequency(Hz) LI018HI-160T432 LI018HO-160T432;LI024HI-160T432 LI024HO-160T432 Indoor side noise when blowing Outdoor side noise when blowing... -
Page 11: Outline Dimension Diagram
Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit LI009HI-160T432 LI012HI-160T432 123.5 179.5 168.5 159.5 Φ55 Φ55 Φ55 Φ55 124.7 83.2 LI018HI-160T432 LI024HI-160T432 Φ70 Φ55 Φ70 Φ55 Unit:mm Model LI009HI-160T432 LI012HI-160T432 LI018HI-160T432 LI024HI-160T432 1078 Technical Information... -
Page 12: Outdoor Unit
Service Manual 3.2 Outdoor Unit LI009HO-160T432 LI012HO-160T432 Unit:mm LI018HO-160T432 LI024HO-160T432 Unit:mm Technical Information... -
Page 13: Refrigerant System Diagram
Di s charge Heat Suction Accumlator exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Electric Capillary Strainer expand valve COOLING HEATING Connection pipe specification: Liquid pipe:1/4" (6mm) Gas pipe:3/8" (9.52mm)(LI009HI-160T432 LI009HO-160T432;LI012HI-160T432 LI012HO-160T432) Gas pipe:5/8" (16mm)(LI024HI-160T432 LI024HO-160T432) Technical Information... -
Page 14: Electrical Part
Service Manual 5. Electrical Part 5.1 Wiring Diagram ● Instruction Symbol Symbol Color Symbol Symbol Color Symbol Name White Green Jumper cap Yellow Brown COMP Compressor Blue Grounding wire YEGN Yellow/Green Black Violet Orange Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model. ●... - Page 15 Service Manual ● Outdoor Unit LI009HO-160T432 LI012HO-160T432 Technical Information...
- Page 16 Service Manual LI018HO-160T432 Please don't touch any terminal when the voltage of terminal P(DC+) and N(DC-) at AP1 is higher than 30V to prevent the risk of electric shock ! LI024HO-160T432 Please don't touch any electronic component or terminal when the machine is running , stopping or has been powered off for less than 30 minutes to prevent...
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Page 17: Pcb Printed Diagram
Service Manual 5.2 PCB Printed Diagram Indoor Unit ● Top view Name Neutral wire interface of cold plasma(Only for the model with this function) 2 Neutral wire interface of power supply 3 Interface of PG motor Live wire interface of cold plasma(Only for the model with this function) 5 Interface of up &... - Page 18 Service Manual Outdoor Unit LI009HO-160T432 LI012HO-160T432 ● Top view Name Compressor Reactor 2 Reactor 1 Chassis electric heating Compressor electric heating 4-way valve DC fan Earthing wire Communication wire Neutral wire Live wire Electronic expansion valve Temperature sensor Overloard DRED ●...
- Page 19 Service Manual LI018HO-160T432 ● Top view Name Terminal of compressor overload protection Terminal of temperature sensor Terminal of electronic expansion valve 4 Terminal of outdoor fan 5 Terminal of 4-way valve Terminal of compressorelectric heating Terminal of chassis electric heating Terminal of indoor unit and outdoor unit communication 9 Power supply live wire...
- Page 20 Service Manual LI024HO-160T432 ● Top view Name Power supply neutral wire Power supply live wire Communication wire with indoor unit Terminal of outdoor temperature sensor Terminal of compressor overload protection Terminal of electronic expansion valve Terminal of outdoor fan Terminal of compressor electric heating Terminal of 4-way valve Terminal of compressor...
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Page 21: Function And Control
Service Manual 6. Function and Control 6.1 Remote Controller Introduction ON/OFF button MODE button FAN button SWING button TURBO button ▲/ button SLEEP button TEMP button I FEEL button LIGHT button CLOCK button TIMER ON / TIMER OFF button Introduction for icons on display screen Set fan speed I feel Send signal... - Page 22 Service Manual 1. ON/OFF button Press this button can turn on or turn off the air conditioner. After turning on the air conditioner, operation indicator " "on indoor unit’s display is ON (green indicator. The colour is different for different models), and indoor unit will give out a sound. 2.
- Page 23 Service Manual 7. SLEEP button Under COOL, HEAT or DRY mode, press this button to start up sleep function. " " icon is displayed on remote controller. Press this button again to cancel sleep function and " " icon will disappear. 8.
- Page 24 Service Manual Function introduction for combination buttons 1. Energy-saving function Under cooling mode, press "TEMP" and " CLOCK" buttons simultaneously to start up or turn off energy-saving function. When energy-saving function is started up, "SE" will be shown on remote controller, and air conditioner will adjust the set temperature automatically according to ex-factory setting to reach to the best energy-saving effect.
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Page 25: Brief Description Of Modes And Functions
Service Manual 6.2 Brief Description of Modes and Functions 1.Basic function of system (1)Cooling mode (1) Under this mode, fan and swing operates at setting status. Temperature setting range is 16~30 (2) During malfunction of outdoor unit or the unit is stopped because of protection, indoor unit keeps original operation status. (2)Drying mode (1) Under this mode, fan operates at low speed and swing operates at setting status. - Page 26 Service Manual (8)I feel control mode After controller received I feel control signal and ambient temperature sent by remote controller, controller will work according to the ambient temperature sent by remote controller. (9)Compulsory defrosting function (1) Start up compulsory defrosting function Under ON status, set heating mode with remote controller and adjust the temperature to 16 C.
- Page 27 Service Manual Outdoor Units LI009HO-160T432 LI012HO-160T432 1. Cooling mode: Working condition and process of cooling mode: ① When Tindoor ambient temperature≥Tpreset, unit enters into cooling mode. Indoor fan, outdoor fan and compressor start operation. Indoor fan operates according to set fan speed. ②...
- Page 28 Service Manual angle will be the same as in normal defrosting mode. When compulsory defrosting is finished, the complete unit resumes original status. 7. Auto mode Auto mode is determined by controller of IDU. See IDU logic for details. 8. 8 C heating Set temperature is 8 C.
- Page 29 Service Manual LI018HO-160T432 LI024HO-160T432 1. Input Parameter Compensation and Calibration (1) Check the ambient temperature compensation function Indoor ambient temperature compensation function. a. In cooling mode, the indoor ambient temperature participating in computing control = (T – ⊿ T indoor ambient temperature cooling indoor ambient temperature compensation b.
- Page 30 Service Manual 3. Special Functions Defrosting Control ① Conditions for starting defrosting After the time for defrosting is judged to be satisfied, if the temperature for defrosting is satisfied after detections for continuous 3minutes, the defrosting operation will start. ② Conditions of finishing defrosting The defrosting operation can exit when any of the conditions below is satisfied: ③...
- Page 31 Service Manual 1. Starting estimation: After the compressor stopped working for 180s, if T >[T (the temperature of hysteresis is 2 )], the inner pipe frozen-preventing frequency-limited temperature machine is only allowed to start for operating, otherwise it should not be started, and should be stopped to treat according to the frozen- preventing protection: Clear the trouble under the mode of power turn-off / heating, and the protection times are not counted.
- Page 32 Service Manual 1. Frequency limited If [T ]≤T <[T ] , you should limit the frequency raising of heating overload frequency-limited temperature inner pipe heating overload frequency reducing temperature at normal speed compressor. 2. Reducing frequency at normal speed and stopping machine: If T[ ]≤T <[T...
- Page 33 Service Manual (6)Voltage sag protection After start the compressor, if the time of DC link Voltage sag [U ] is measured to be less than t Voltage sag protection time , Sagging protection voltage the machine should be stop at once, hand on the voltage sag trouble, reboot automatically after 30 minutes. (7)Communication fault When you have not received any correct signal from the inner machine in three minutes, the machine will stop for communication fault.
- Page 34 Service Manual (12) Starting-up Failure Protection for Compressor Stop the compressor after its starting-up fails, restart it after 20s if the fault doesn’t shows, and if they are all failing for the successive start 3 times, it shall be reported as Starting-up Failure, and then restart up it after 3 min. When it still not be able to operate through carry out the above process for 5 times, it is available if press ON/OFF.
- Page 35 Service Manual 6. Electric Heating Function of Chassis (1) When T ≤0ºC, the electric heating of chassis will operate; outdoor amb. (2) When T >2ºC, the electric heating of chassis will stop operation; outdoor amb. (3)When 0ºC<T ≤2ºC, the electric heating of chassis will keep original status. outdoor amb.
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Page 36: Part Ⅱ : Installation And Maintenance
Service Manual Part Ⅱ : Installation and Maintenance 7. Notes for Installation and Maintenance Safety Precautions: 10. If the power cord or connection wire is not long enough, please get the specialized power cord or connection wire Important! from the manufacture or distributor. Prohibit prolong the wire by yourself. - Page 37 Service Manual Main Tools for Installation and Maintenance 1. Level meter, measuring tape 2. Screw driver 3. Impact drill, drill head, electric drill 4. Electroprobe 5. Universal meter 6. Torque wrench, open-end wrench, inner hexagon spanner 7. Electronic leakage detector 8.
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Page 38: Installation
Service Manual 8. Installation 8.1 Installation Dimension Diagram Space to the wall Space to the wall At least 15cm At least 15cm Drainage pipe Installation and Maintenance... - Page 39 Service Manual Installation procedures Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install the support of outdoor unit Install wall-mounting (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Fix outdoor unit...
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Page 40: Installation Parts-Checking
Service Manual 8.4 Electric Connection Requirement 8.2 Installation Parts-checking 1. Safety Precaution Name Name (1) Must follow the electric safety regulations when installing Indoor unit Sealing gum the unit. Outdoor unit Wrapping tape (2) According to the local safety regulations, use qualified Support of outdoor power supply circuit and air switch. - Page 41 3. Install Wall-mounting Frame (1) Choose the position of piping hole according to the direction of outlet pipe. The position of piping hole should be a little lower than the wall-mounted frame.(As show in Fig.1) LI009HI-160T432 Rear left Wall Wall...
- Page 42 Service Manual (4) Put wiring cover back and then tighten the screw. (5) Close the panel. Drain hose Outlet pipe Note: (1) All wires of indoor unit and outdoor unit should be connected by a professional. Tape Drain hose (2) If the length of power connection wire is insufficient, please Outlet Fig.9 pipe...
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Page 43: Installation Of Outdoor Unit
Service Manual 4. Connect Indoor and Outdoor Pipes Outdoor Indoor (1) Remove the screw on the handle and valve cover of outdoor Fig.17 Wall pipe Sealing gum unit and then remove the handle and valve cover.(As show in Fig.21) Upper hook (2) Remove the screw cap of valve and aim the pipe joint at the bellmouth of pipe.(As show in Fig.22) Liquid pipe... -
Page 44: Vacuum Pumping And Leak Detection
Service Manual 2. Leakage Detection The drain hos (1) With leakage detector: can't raise upwards Check if there is leakage with leakage detector. (2) With soap water: Wall If leakage detector is not available, please use soap water for leakage detection. Apply soap water at the suspected position Fig.25 and keep the soap water for more than 3min. -
Page 45: Maintenance
Service Manual 9. Maintenance 9.1 Malfunction Display of Indoor Unit 1. Malfunction display requirement When there are several malfunctions, they will be displayed circularly. 2. Malfunction display method (1) Hardware malfunction: immediate display; refer to “malfunction display table”; (2) Operation state: immediate display; refer to “malfunction display table”; (3) Other malfunctions: it is displayed after the compressor stops for 200s;... - Page 46 Service Manual ●Discharging method (1) remove the inverter cover(Outdoor Unit) Inverter cover P.C.board (Soldered surface) (2)As shown below,connect the discharge resistance(approx.100Ω20W)or plug of the sold ering iron to voltage between + - terminals of the electrolytic capacitor 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(charging voltage DC280V to 380V)remains and disc harging takes a lot of time..
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Page 47: Procedure Of Troubleshooting
Service Manual 9.2 Procedure of Troubleshooting Indoor unit (1) Malfunction of Temperature Sensor F1, F2 Main detection points: ● Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? ● Is there short circuit due to trip-over of the parts? ●... - Page 48 Service Manual (2) Malfunction of Blocked Protection of IDU Fan Motor H6 Main detection points: ● SmoothlyIs the control terminal of PG motor connected tightly? ● SmoothlyIs the feedback interface of PG motor connected tightly? ● The fan motor can't operate? ●...
- Page 49 Service Manual (3) Malfunction of Protection of Jumper Cap C5 Main detection points: ● Is there jumper cap on the mainboard? ● Is the jumper cap inserted correctly and tightly? ● The jumper is broken? ● The motor is broken? ●...
- Page 50 Service Manual (4) Malfunction of Zero-crossing Inspection Circuit Malfunction of the IDU Fan Motor U8 Main detection points: ● Instant energization afte de-energization while the capacitordischarges slowly? ● The zero-cross detectioncircuit of the mainboard is defined abnormal? Malfunction diagnosis process: Start Turn power off for 1minute,the turn...
- Page 51 Service Manual (5) Communication malfunction (E6) Troubleshooting for E6 malfunction Disconnect power and check if the connection wire of indoor and outdoor units and the built-in wire of electric box are correctly connected. Connect the wire properly according Is malfunction Correct connection? to the wiring eliminated?
- Page 52 Service Manual Outdoot Unit (1) Malfunction of Desynchronizing of Compressor (H7) Main check point: Whether the system pressure is too high? Whether the electronic expansion valve can work normally? Whether the radiation for the unit is in good condition? Malfunction diagnosis process: Desynchronizing malfunction occurs after de-energizing and turning on the unit...
- Page 53 Service Manual Desynchronizing malfunction occurs during operation process Check whether Whether the outdoor fan can Replace fan capacitor the fan terminal is operate normally? connected well Improve the radiation circumstances for the Whether the radiation for the unit (such as clean heat unit is in good condition? Replace outdoor fan exchanger, improve...
- Page 54 Service Manual (2) Malfunction of Temperature Sensor (F3/F4/F5) Main check point: Whether the temperature sensor is damaged? Whether the terminal of temperature sensor is loose or not connected? Whether the main board is damaged? Malfunction diagnosis process: Start the troubleshooting for temperature sensor Check the connection between temperature sensor and wiring...
- Page 55 Service Manual (3) Malfunction of Overload Protection of Compressor (H3) and Discharge High-temperature Protection of Compressor (E4) Main check point: Whether the electronic expansion valve is connected well and whether it’s damaged? Whether the refrigerant is leaking? Whether the overload protector is damaged? Start Malfunction diagnosis process: Whether the overload protector is...
- Page 56 Service Manual (4) Charging Malfunction of Capacitor (PU) Main check point: Whether input power is normal? Main board is damaged. Malfunction diagnosis process: Energize and turn on the unit; wait for 1 min Measure the voltage at both ends of big electrolytic capacitor with the DC notch of universal meter There is malfunction for the...
- Page 57 Service Manual (5) Malfunction of Overload Protection (E8) Main check point: Whether the tube temperature sensor is normal? Whether the outdoor ambient temperature is within the normal range? Whether indoor fan and outdoor fan can operate normally? Whether radiation environment inside or outside the unit is good? Malfunction diagnosis process: Start Replace the tube temperature...
- Page 58 Service Manual (6) Malfunction of IPM Protection (H5) Main check point: Whether input voltage is within the normal range? Whether wires of compressor are connected reliably, tightly or correctly? Whether the resistance of compressor coil is normal? Whether the insulation between compressor coil and copper pipe is in good condition? Whether the unit is overloading? Whether the radiation for the unit is in good condition? Whether the volume of charged refrigerant is proper?
- Page 59 Service 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 Turn on the unit again after the power is Is power abnormal? resumed Replace main board of outdoor unit Installation and Maintenance...
- Page 60 Service Manual (8) Malfunction of Communication (E6) Main check point: Check whether connection wires between indoor unit and outdoor unit and wiring inside the unit are connected well? Check the main board of indoor unit or main board of outdoor unit is damaged? Malfunction diagnosis process: Communication malfunction De-energize the unit and then...
- Page 61 Service Manual (9) Malfunction of Failure Start-up of Compressor (LC) Main check point: Whether the compressor wires are connected correctly? Whether the stop time for compressor is enough? Whether compressor is damaged? Whether the refrigerant-charging volume is superfluous? Malfunction diagnosis process: Energize and turn on the unit Whether the stop time for...
- Page 62 Service Manual (10) Malfunction of Overcurrent Protection E5 Main detection points: ● Is the supply voltage unstable with big fluctuation? ● Is the supply voltage too low with overload? ● Hardware trouble? Malfunction diagnosis process: Start Normal fluctuation should be within 10 % Is malfunction Is the supply voltage unstable of the rated voltage on the nameplate...
- Page 63 Service Manual (11) Other Malfunction 1.IPM module temperature sensor is open-circuited (P7) Hardware of main board is damaged. Please replace main board. 2.Overheating protection of IPM module (P8) ① Poor radiation because the module radiator is dirty; ② IPM module is damaged; ③...
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Page 64: Troubleshooting For Normal Malfunction
Service Manual 9.3 Troubleshooting for Normal Malfunction 1. Air Conditioner Can't be Started Up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether it's due to power failure. If yes, No power supply, or poor After energization, operation indicator isn’t bright wait for power recovery. - Page 65 Service Manual 4. ODU Fan Motor Can't Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Connect wires according to wiring diagram to Wrong wire connection, or poor Check the wiring status according to circuit make sure all wiring terminals are connected connection diagram firmly...
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Page 66: Exploded View And Parts List
Service Manual 10. Exploded View and Parts List 10.1 Indoor Unit LI009HI-160T432 LI012HI-160T432 The component picture is only for reference; please refer to the actual product. Installation and Maintenance... - Page 67 Service Manual Part Code Description LI009HI-160T432 LI012HI-160T432 Product Code Y6732 Y6734 Front Panel Assy 20000300019 20000300018 Display Board 30565260 30565260 Front Case Assy 00000200040 00000200045 Helicoid Tongue 26112508 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 20162010 00000100093 Drainage Hose...
- Page 68 Service Manual LI018HI-160T432 LI024HI-160T432 The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
- Page 69 Service Manual Part Code Description LI018HI-160T432 LI024HI-160T432 Product Code Y6736 Y6738 Front Panel 20000300023 20000300016 Filter Sub-Assy 11122089 11012007 Screw Cover 2425201726 2425245301 Front Case Assy 00000200042 00000200043 Air Louver(Manual) 10512732 10512737 Helicoid Tongue 26112512 26112513 Left Axile Bush 10512037 10512037 Rear Case assy 22202571...
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Page 70: Outdoor Unit
Service Manual 10.2 Outdoor Unit LI009HO-160T432 LI012HO-160T432 The component picture is only for reference; please refer to the actual product. Installation and Maintenance... - Page 71 Service Manual Part Code Description LI009HO-160T432 LI012HO-160T432 Product Code Y6733 Y6735 Electric Box Assy 10000100118 10000100120 Electric Box Sub-Assy 10000500049 10000500051 Main Board 30138000453 30138000456 Reactor 43130184 43130184 Terminal Board 42010313 42010313 Wire Clamp 71010003 71010003 Front Grill 22413027 22413027 Front Panel Assy 0153304802 0153304802...
- Page 72 Service Manual LI018HO-160T432 LI024HO-160T432 The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
- Page 73 Service Manual Part Code Description LI018HO-160T432 LI024HO-160T432 Product Code Y6737 Y6739 Front Grill 22413025 22413025 Front Panel 01535013 01535013P Drainage Connecter 06123401 06123401 Chassis Sub-assy 02803270P 0120581601P Drainage hole Cap 06813401 06813401 Compressor and fittings 00105246G 0010505701 Magnet Coil 4300040045 4300040078 4-Way Valve Assy 03015200069...
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Page 74: Removal Procedure
Service Manual 11. Removal Procedure Caution: discharge the refrigerant 11.1 Removal Procedure of Indoor Unit completely before removal. LI009HI-160T432 LI012HI-160T432 Step Procedure 1. Remove filter assembly Front panel Open the front panel. Push the left filter and right filter until they are separate from the groove on the front panel. - Page 75 Service Manual Step Procedure 4. Remove electric box cover 2 Screw Electric box cover 2 Remove the screws on the electric box cover 2 to remove the electric box cover 2. 5. Remove front case sub-assy Screws Remove the screws fixing front case. Note: 1.Open the screw caps before removing the screws around the air outlet.
- Page 76 Service Manual Step Procedure 7. Remove electric box assy Screw Loosen the connection clasps between shield cover of electric box sub-assy and Clasps electric box, and then remove the shield cover of electric box sub-assy. Remove the screw fixing electric box assy . Electric box Shield cover of electric box sub-assy...
- Page 77 Service Manual Step Procedure Instruction: Some wiring terminal of this product is with lock catch and other devices. circlip The pulling method is as below: holder 1.Remove the soft sheath for some terminals at first, hold the circlip and then pull out the terminals.
- Page 78 Service Manual Step Procedure 9. Remove motor and cross flow blade Remove the screws fixing motor clamp Screws and then remove the motor clamp. Motor clamp Cross flow Remove the screws at the connection Screw Motor place of cross flow blade and motor; lift Holder the motor and cross flow blade upwards sub-assy...
- Page 79 Service Manual LI018HI-160T432 LI024HI-160T432 1.Remove fifter assy Front panel Open the front panel. Push the left and rightfilters to make them break away from thegroove on the front case. Then remove the leftand right filters one by one. Left filter Front Right filter Groove...
- Page 80 Service Manual Loosen the connection clasps between front case sub-assy and bottom case. Lift up the front case sub-assy and take it out. S wing motor Screw off the screws that are locking the swing motor and take the motor off. Installation and Maintenance...
- Page 81 Service Manual Indoor tube temperature s ensor Cut off the wire binder and pull out the indoor tube temperature sensor. Screw off one grounding screw. Main Remove the wiring terminals of motor and board stepping motor. Remove the electric box assy. G rounding Screw off the screws that are locking each s c rew...
- Page 82 Service Manual G roove R ear case ass y First remove the left side of evaporator from the groove on the rear case assy. Then remove the right side from the clasp on the C lasp rear case assy. Installation and Maintenance...
- Page 83 Service Manual Installation and Maintenance...
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Page 84: Removal Procedure Of Outdoor Unit
Service Manual 11.2 Removal Procedure of Outdoor Unit LI009HO-160T432 LI012HO-160T432 Step Procedure 1. Remove big handle Right side plate Remove the screw fixing big handle; slide out the big handle upwards to make the clasp of big handle separate from the groove of right side plate, and then remove the big handle. - Page 85 Service Manual Step Procedure 4. Remove the front cover Screws Screw off the screws that are locking the front cover. Then take it off. Screws Screws Front cover Screws 5. Remove axial flow blade Remove the nut fixing axial flow blade and then remove the axial flow blade.
- Page 86 Service Manual Step Procedure 6. Remove protective grille and right side plate Remove the screws 1 fixing protective grille and then remove the protective Protective grille. grille Screws 2 Screws 1 Right side plate Right side plate Remove the screws 2 fixing right side plate and then remove the right side plate.
- Page 87 Service Manual Step Procedure 8. Remove 4-way valve assy Unsolder the spot weld of 4-way valve assy, compressor and condenser, and then remove the 4-way valve assy . 4-way valve assy Note: When unsoldering the spot weld, wrap the 4-way valve with wet cloth completely to avoid damaging the valve due to high temperature.
- Page 88 Service Manual Step Procedure 11. Remove gas valve and liquid valve Remove two screws fixing the gas valve, then remove the gas valve. Remove two screws fixing the liquid valve, then remove the liquid valve. Liquid valve Screws Gas valve Screws 12.
- Page 89 Service Manual Step Procedure 14. Remove compressor Remove 3 foot nuts on compressor, and then remove the compressor. Note: Protect the ports of discharge pipe and suction pipe to avoid foreign objects to enter it. Compressor Foot nuts 15. Remove condenser Remove one screw fixing the condenser, then remove the condenser.
- Page 90 Service Manual LI018HO-160T432 LI024HO-160T432 Step Procedure 1. Remove big handle,valve cover and top cover handle Remove the screw connecting the big handle and right side plate, and then remove the big handle. screws Remove the screw connecting the valve cover and right side plate, and then remove the valve cover.
- Page 91 Service Manual Step Procedure 2. Remove grille and cabinet screws Remove the 4 screws connecting the grille and outer case, and then remove the panel grille. grille Remove the screws connecting the outer case with motor support, isolation plate and chassis; screws lift the outer case upwards;...
- Page 92 Service Manual Step Procedure 4. Remove axial flow blade Remove the nut fixing axial flow blade and then remove the blade. axial flow blade 5.Remove electric box assy grounding wire Remove the grounding wire screw on the e l e c t r i c b o x a s s y a n d t h e n r e m o v e t h e grounding wire.
- Page 93 Service Manual Step Procedure screws Remove the 2 screws fixing the electric box assy and then lift the electric box assy upwards to remove it. electric box assy electric box clasp(right) cover clasp(left) Push the electric box cover in the direction of arrow to make the clasp at the right side separate from the groove;...
- Page 94 Service Manual Step Procedure 6.remove the soundproof sponge. Tear off the sticking stripe and then remove the soundproof sponge. sticking stripe soundproof sponge 7.remove the isolation plate and reactor Remove the 2 screws connecting the isolation plate and condenser side plate; remove the 3 screws connecting the isolation plate and chassis, and then remove the isolation plate.
- Page 95 Service Manual Step Procedure 8.Valve Support Sub-Assy valve support Unsolder the welding joint connecting the valve sub-Assy with capillary and condenser; unsolder the welding joint connecting the gas valve and air- liquid return pipe; remove the 2 bolts fixing the gas valve valve to remove the gas valve.
- Page 96 Service Manual Step Procedure Remove the 6 screws fixing the motor and then remove the motor. motor screws 11.Remove condenser condenser Remove the 2 screws fixing the condenser and chassis, and then lift the condenser upwards to remove it. screw screw 12.Remove compressor foot nuts...
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Page 97: Appendix
Service Manual Appendix: Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit Fahrenheit Fahrenheit display Fahrenheit display Fahrenheit display Fahrenheit Celsius( Celsius( Celsius( temperature temperature temperature 60.8 69/70 69.8 78/79 78.8 62/63... -
Page 98: Appendix 3: Pipe Expanding Method
Service Manual Appendix 3: Pipe Expanding Method Pipe Note: Pipe cutter Improper pipe expanding is the main cause of refrigerant leakage.Please expand the pipe according to the following steps: Leaning Uneven Burr A:Cut the pip ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ●... -
Page 99: Appendix 4: List Of Resistance For Temperature Sensor
Service Manual Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor (15K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6 17.14 3.579 1.009... - Page 100 Service Manual Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9 4.443 1.269 137.2...
- Page 101 Service Manual Resistance Table of Discharge Temperature Sensor for Outdoor (50K) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) 853.5 18.34 4.75 799.8 93.42 17.65 4.61 89.07 16.99 4.47 703.8 84.95 16.36 4.33 660.8 81.05 15.75 4.20 620.8 77.35 15.17 4.08...
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