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Table of Contents
Related Manuals for Lennox LNWR21X
Summary of Contents for Lennox LNWR21X
- Page 1 Service Manual MODELS: LNWR21X LNWR39X LNWR53X LNWR59X (Refrigerant R410A)
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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 3.Outline Dimension Diagram ............... 10 4.Refrigerant System Diagram ............. 11 5.Electrical Part ..................... 12 5.1 Wiring Diagram .................... 12 5.2 PCB Printed Diagram ................... 14 6.Function and Control ................ -
Page 3: Part Ⅰ :Technical Information
Service Manual Part :Technical Information Ⅰ 1.Summary Models LNWR21X LNWR39X LNWR53X LNWR59X Remote Controller YX1F T-ON T-OFF AUTO SWING COOL SLEEP LOCK SPEED HEAT ON/OFF MODE SWING SLEEP TIMER Technical Information... -
Page 4: Specifications
Service Manual 2.Specifications Parameter Unit Value Model LNWR21X Product Code CC052022701_K79014 Rated Voltage 220-240 Power Rated Frequency Supply Phases Cooling Capacity 2200 Heating Capacity 1900 Cooling Power Input Heating Power Input Cooling Power Current 2.87 Heating Power Current 2.50 Rated Input Rated Current 5.00... - Page 5 Service Manual Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXA-B080C190 Compressor Oil RB68EP Compressor Type Rotary L.R.A. 17.00 Compressor RLA 3.20 Compressor Power Input Overload Protector Internal Throttling Method Capillary Operation Temp ºC 16~30 Ambient Temp (Cooling) ºC 18~43 Ambient Temp (Heating) ºC...
- Page 6 Service Manual Parameter Unit Value Model LNWR39X Product Code CC052020401_K79014 Rated Voltage 220-240 Power Rated Frequency Supply Phases Cooling Capacity 3900 Heating Capacity 3600 Cooling Power Input 1180 Heating Power Input 1090 Cooling Power Current 5.36 Heating Power Current 4.70 Rated Input 1600 Rated Current...
- Page 7 Service Manual Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXA-C139B030A Compressor Oil RB68EP Compressor Type Rotary L.R.A. 26.00 Compressor RLA 5.50 Compressor Power Input 1165 Overload Protector UP3-03/HPA-430 Throttling Method Capillary Operation Temp ºC 16~30 Ambient Temp (Cooling) ºC 18~43 Ambient Temp (Heating)
- Page 8 Service Manual Model LNWR53X Product Code CC052020500_K79014 Rated Voltage 220-240 Power Rated Frequency Supply Phases Cooling Capacity 5300 Heating Capacity 5000 Cooling Power Input 1600 Heating Power Input 1500 Cooling Current Input 6.96 Heating Current Input 6.50 Rated Input 2000 Rated Current 10.10 Air Flow Volume(H/M/L)
- Page 9 Service Manual Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXA-F19F090 Compressor Oil RB68EP Compressor Type Rotary Compressor LRA. 40.00 Compressor RLA 7.25 Compressor Power Input 1590 Compressor Overload Protector Internal Throttling Method Capillary Set Temperature Range ºC 16~30 Cooling Operation Ambient Temperature Range ºC 18~43...
- Page 10 Service Manual Model LNWR59X Product Code CC052020600_K79014 Rated Voltage 220-240 Power Rated Frequency Supply Phases Cooling Capacity 6000 Heating Capacity 5500 Cooling Power Input 1810 Heating Power Input 1660 Cooling Current Input 7.87 Heating Current Input 7.20 Rated Input 2300 Rated Current 11.62 Air Flow Volume(H/M/L)
- Page 11 Service Manual Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXA-F22F090 Compressor Oil RB68EP Compressor Type Rotary Compressor LRA. 42.00 Compressor RLA 8.30 Compressor Power Input 1800 Compressor Overload Protector Internal Throttling Method Capillary Set Temperature Range ºC 16~30 Cooling Operation Ambient Temperature Range ºC 18~43...
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Page 12: Outline Dimension Diagram
Service Manual 3.Outline Dimension Diagram Over Over Over Unit: mm Model W(mm) H(mm) D(mm) LNWR21X LNWR39X LNWR53X LNWR59X Technical Information... -
Page 13: Refrigerant System Diagram
Service Manual 4.Refrigerant System Diagram CENTRIFUGAL COOLED AIR OR CROSS FAN AXIAL FAN HOT DISCHARGED AIR HOT AIR COOLED AIR COMPRESSOR INDOOR COILS OUTDOOR COILS CAPILLARY COOLING MODE NOTES: REFRIGERANT FLOW DIRECTION HEATING MODE Technical Information... -
Page 14: Electrical Part
Service Manual 5.Electrical Part 5.1 Wiring Diagram ●Instruction Symbol Symbol Color Symbol Symbol Color Symbol Name Yellow Brown COMP Compressor Blue Grounding wire YEGN Yellow-Green Black CAP. Capacitor ●Electric Diagram LNWR21X LNWR39X Technical Information... - Page 15 Service Manual LNWR53X POWER MODULE OUTTUBE TEMP. TUBE TEMP. BN(BK) SENSOR SENSOR BU(WH) CN30 CN31 YEGN(GN) POWER ROOM TEMP. SENSOR CN6 CN5 OUTTUBE TUBE ROOM W1BK PRINTED CIRCUIT BOARD CAP. COMP W2 BU W3YE R(M) COMP YEGN COMP. YEGN SWING 4-WAY CAP.
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Page 16: Pcb Printed Diagram
Service Manual 5.2 PCB Printed Diagram 5.2.1 Silk screen on main board Main board ● TOP VIEW Interface of Input of live wire fuse 12V power input buzzer display board Tube Ambient Outdoor tube temperature t e m p e r a t u r e temperature swing 4-way valve... - Page 17 Service Manual 5.2.2 Silk screen on display board ● TOP VIEW Name Name Name Name Board connection wire, Medium speed Filter cleaning button Mode selection button connect mainboard indicator “-“ decreasing button Cooling indicator Swing button Filter cleaning indicator Timer indicator ON/OFF button High fan speed indicator “+”...
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Page 18: Function And Control
Service Manual 6.Function and Control After putting through the power, air conditioner will give out a sound and indicators on control panel will be on. After that, you operate the air conditioner through remote controller or control panel. 6.1 Introduction of Control Panel Note:If wireless remote controller is lost, open the surface panel and operate manually. -
Page 19: Introduction Of Remote Controller
Service Manual 6.2 Introduction of Remote Controller Buttons on Remote Controller ON/OFF button T-ON T-OFF MODE button AUTO SWING COOL SLEEP LOCK SPEED HEAT +/- botton MODE ON/OFF FAN button SWING SWING button SLEEP TIMER SLEEP button TIMER button Icon Display on Remote Controller Timer on Timer off Sending signal T-ON T-OFF... - Page 20 Service Manual When selecting auto mode, air conditioner will operate automatically according to ex-factory setting. Set temperature can't be adjusted and won't be displayed either. Press FAN button to adjust fan speed. (This function is not available in this air conditioner.) When selecting cool mode, air conditioner will operate under cool mode.
- Page 21 Service Manual Replacement of Batteries in Remote Controller battery 1. Press the back side of remote controller on the spot marked with , and then push out the cover of battery box along the arrow direction. 2. Replace two No.7 (AAA 1.5V) dry batteries and make sure the positions of + and -- polar are correct.
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Page 22: Function Introduction
Service Manual 6.3 Function Introduction 1 Basic Function 1.1 Cooling mode 1.1.1 Cooling condition and process a. When Tindoor amb. Tpreset+1 , the unit operates in cooling mode. Meanwhile, compressor and outdoor fan operate and indoor fan operates at set fan speed. b. - Page 23 Service Manual b. In this mode, the set temperature range is 16 ~30 61 ~86 1.6. Auto Mode Working conditions and process a. When Tamb. 26 ), the unit will operate in Cool mode. Tpreset=25 b. When Tamb. 22 ), the heat pump unit will operate at heating mode and the cooling only unit will operate at fan mode; Tpreset=20 When 22 ) Tamb.
- Page 24 Service Manual b. Auto fan speed under energy saving mode or fan mode is as that under cooling mode. c. If under dry mode, the auto fan speed will be always low speed. Only LED lamp for low speed is on. 2.
- Page 25 Service Manual b. SWING button is used for controlling swing function. If swing function is set, press this button to turn it off. If it is not set, press this button to turn it on. c. FANSPEED button is used for adjusting fan speed. The fan speed will be circulated according to the sequence of AUTO FAN, FANL, FANM, FANH, ATUO FAN.
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Page 26: Part Ⅱ :Installation And Maintenance
Service Manual Part Ⅱ :Installation and Maintenance 7.Notes for Installation and Maintenance Safety Precautions: 11. Check if there is electric leakage on the unit body. If yes, please eliminate the electric leakage. Important! 12. Replace the fuse with a new one of the same speci- fication if it is burnt down;... -
Page 27: Installation
Service Manual 8.Installation 8.1 Selection of Installation Location 1.Basic requirement Installing the unit in the following places may cause malfunction. If it is unavoidable, please consult the local dealer: (1) The place with strong heat sources, vapors, flammable or explosive gas, or volatile objects spread in the air. (2) The place with high-frequency devices (such as welding machine, medical equipment). -
Page 28: Installation Procedure
Service Manual 8.3 Installation Procedure (1) Remove the sticker from the front panel. (2) Put the unit into the installation hole. ●When installing, make sure the unit is slanted downward to the back to Horizonta line minimize the nosie and vibration of operation. (Slant by 6-10mm.) 6-10mm (See the right figure) ●Make sure the installation place is strong enough to minimize the noise and... -
Page 29: Maintenance
Service Manual 9.Maintenance 9.1 Error Code Malfunction Display on dual- A/C Status Possible reasons Solution name 8 nixie tube 1. The wiring terminal between indoor ambient temperature sensor and controller is loosened or poorly contacted; Malfunction Under heating, cooling or SE mode, 2. -
Page 30: Malfunction Of Temperature Sensor
Service Manual 9.2 Malfunction of Temperature Sensor Troubleshooting for temperature sensor the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? Insert the temperature sensor tightly Is malfunction eliminated Is there short circuit due to trip - over of the parts? Make the parts upright Is malfunction... -
Page 31: Maintenance Method For Normal Malfunction
Service Manual 9.3 Maintenance Method 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 32 Service Manual When ambient temperature is high, the detected Increase the set fan speed. When indoor tube temperature by indoor tube temperature sensor Tube temperature protection temperature decreases to a certain value, it will is high. The detected temperature by temperature resume automatically.
- Page 33 Service Manual 6.Air Conditioner is Leaking Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Eliminate the obstacles inside the drainage Drainage duct is blocked There’s water leakage at indoors duct. Air conditioner isn’t inclined The complete unit should incline outwards about There’s water leakage at indoors outwards 3º.
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Page 34: Exploded View And Parts List
Service Manual 10.Exploded View and Parts List LNWR21X 36 35 34 33 Installation and Maintenance... - Page 35 Service Manual Part Code Description LNWR21X Product Code CC052022701_K79014 Cabinet Assy 0143111601 Condenser Assy 01101110 Axial Flow Fan 10331365 Rear Clapboard 01231095 Motor Support 01701301 Fan Motor 15011307 Top Connecting Plate Assy 01381015 Front Clapboard Sub-Assy 01231107 Base Plate Of Air Flue...
- Page 36 Service Manual LNWR39X Installation and Maintenance...
- Page 37 Service Manual Part Code Description LNWR39X Product Code CC052020401_K79014 Cabinet Assy 01431170 Condenser Assy 01101117 Axial Flow Fan 10331163 Rear Clapboard 01231502 Motor Support 1 01701605 Fan Motor 150116065 Top Cover Board Sub-assy 01251503 Front Clapboard Sub-Assy 01231804 Base Plate Of Air Flue 01221602 Propeller Housing 12101602...
- Page 38 Service Manual LNWR53X Installation and Maintenance...
- Page 39 Service Manual Part Code Description LNWR53X Product Code CC052020500_K79014 Cabinet Assy 014316182 Condenser Assy 01101116 Axial Flow Fan 10331163 Rear Clapboard 01231099 Motor Support 1 01701605 Fan Motor 1501120707 Motor Support 2 01701604 Top Cover Board Sub-assy 01251611 Front Clapboard Sub-Assy 01231804 Base Plate Of Air Flue 01221602...
- Page 40 Service Manual LNWR59X Installation and Maintenance...
- Page 41 Service Manual Part Code Description LNWR59X Product Code CC052020600_K79014 Cabinet Assy 01431118 Condenser Assy 01101118 Axial Flow Fan 10331163 Rear Clapboard 01231099 Motor Support 1 01701605 Fan Motor 1501120707 Motor Support 2 01701604 Top Cover Board Sub-assy 01251611 Soft Start Device 30116042 Electric Box 20111033...
- Page 42 Service Manual Temperature Sensor 390000372 Temperature Sensor 390000451 Display Board 30562019 LCD board(remote control) 20120037 Membrane 2243113201 Front Panel Assy 20001541_K79014 Guide blade lever 10581604 Guide blade 105116021 Front Case 27220105253 Filter Sub-Assy 11121601 Front Panel 20001541_K79014 Remote Controller 30510065_K79014 Above data is subject to change without notice.
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Page 43: Removal Procedure
Service Manual 11.Removal Procedure Caution: pull out the power,discharge the refrigerant completely before removal. Procedure Steps 1.Remove panel assy Open t he air-inlet panel; remove the filter; remove the screws in the middle, air-inlet panel at the left side and right side of the panel;... - Page 44 Service Manual Steps Procedure screws 3.Remove electric box Remove remote control plate, earthing screw and temp sensor in turn. Then remove electric box. screws earthing screw temp sensor temp sensor electric box Installation and Maintenance...
- Page 45 Service Manual Steps Procedure 4.Remove top cover top cover sub-assy Remove the screws fixing top cover and then remove the top cover. 5.Remove cross beam,swing louver ,air door lever swing motor Take out the cross beam; take out the swing support swing louver;...
- Page 46 Service Manual Steps Procedure 6.Remove evaporator Unsolder each connecting pipe (Note discharge refrigerant firstly) and then remove screws fixing evaporator. Then remove evaporator. evaporator screws 7.Remove condenser Unsolder each connecting pipe (Note: discharge refrigerant firstly.) Remove screws fixing condenser and then remove condenser.
- Page 47 Service Manual Steps Procedure 8.Remove axial flow fan blade Remove nut fixing axial flow fan blade and the washer. Then remove axial flow fan blade. axial flow fan blade 9.Remove centrifugal fan blade Remove nut fixing centrifugal fan blade and then remove centrifugal fan blade.
- Page 48 Service Manual Steps Procedure 11.Remove motor Remove screws of motor support and then remove motor support. Remove screws of motor and then remove the motor. screws motor 12.Remove compressor Unsolder each connecting pipe (Note: discharge refrigerant firstly) and then remove 3-hold down nuts...
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Page 49: 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 Celsius display Fahrenheit Celsius Celsius(°C) temperature (°F) temperature (°F) (°C) temperature (°F) (°C) (°F) -
Page 50: Appendix 2: List Of Resistance For Ambient Temperature Sensor
Service Manual Appendix 2: List of Resistance for Ambient Temperature Sensor Resistance Table of Ambient Temperature Sensor (15K) Temp(°C) Resistance(kΩ) Temp(°C) Resistance(kΩ) Temp(°C) Resistance(kΩ) Temp(°C) 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 16.39 3.454 0.98 108.7 15.68... - Page 51 Service Manual Resistance Table of Ambient Temperature Sensor (20K) Temp(°C) Resistance(kΩ) Temp(°C) Resistance(kΩ) Temp(°C) Resistance(kΩ) Temp(°C) 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 4.289 1.233 129.9 19.14 4.14 1.198...
- Page 52 Service Manual Resistance Table of Ambient Temperature Sensor (50K) Temp(°C) Resistance(kΩ) Temp(°C) Resistance(kΩ) Temp(°C) Resistance(kΩ) Temp(°C) 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 4.08 580.6 73.83 14.62 3.96...
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