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Summary of Contents for Lennox LM036CI-100P232-1X
- Page 1 Service Manual Models: LM036CI-100P232-1X / LM036CO-100P232-1X LM036HI-100P232-1X / LM036HO-100P232-1X (Refrigerant R22) 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 Capacity Variation Ratio According to Temperature ............6 2.3 Cooling and Heating Data Sheet in Rated Frequency .............6 3. Dimensions ........................7 3.1 Indoor Unit ........................7 3.2 Outdoor Unit ........................7... - Page 3 Service Manual 10. Exploded View and Parts List ..............41 10.1 Indoor Unit ........................41 10.2 Outdoor Unit .........................43 11. Removal Procedure ..................47 11.1 Removal Procedure of Indoor Unit ................47 11.2 Removal Procedure of Outdoor Unit ................56 Appendix: ........................62 Appendix 1: Reference Sheet of Celsius and Fahrenheit ............62 Appendix 2: Configuration of Connection Pipe ..............62 Appendix 3: Pipe Expanding Method ...................63 Appendix 4: List of Resistance for Temperature Sensor ............64...
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Page 4: Part Ⅰ : Technical Information
Service Manual Part Ⅰ : Technical Information 1. Summary Indoor Unit: LM036CI-100P232-1X LM036HI-100P232-1X Outdoor Unit: LM036CO-100P232-1X LM036HO-100P232-1X Remote Controller: Y6185 Technical Information... -
Page 5: Specifications
Service Manual 2. Specifications 2.1 Specification Sheet Model LM036CI-100P232-1X/LM036CO-100P232-1X Product Code Y6695/Y6696 Rated Voltage 220-230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 36000 Heating Capacity Cooling Power Input 3450 Heating Power Input Cooling Power Current 15.3... - Page 6 Service Manual Model of Outdoor Unit LM036CO-100P232-1X Outdoor Unit Product Code Y6696 MITSUBISHI ELECTRIC(GUANG ZHOU) Compressor Manufacturer/Trademark COMPRESSOR CO.,LTD Compressor Model LHT48NBDC Compressor Oil ATMOS NM56EP Compressor Type Rotary L.R.A. Compressor RLA 15.4 Compressor Power Input 3250 Overload Protector Throttling Method Capillary Operation temp ºC...
- Page 7 Service Manual Model LM036HI-100P232-1X/LM036HO-100P232-1X Product Code Y6705/Y6706 Rated Voltage 220-230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 36000 Heating Capacity Btu/h 35000 Cooling Power Input 3450 Heating Power Input 3360 Cooling Power Current 15.3 Heating Power Current 14.9 Rated Input 4400...
- Page 8 Service Manual Model of Outdoor Unit LM036HO-100P232-1X Outdoor Unit Product Code Y6706 MITSUBISHI ELECTRIC(GUANGZHOU) Compressor Manufacturer/Trademark COMPRESSOR CO.,LTD Compressor Model LHT48NBDC Compressor Oil ATMOS NM56EP Compressor Type Rotary L.R.A. Compressor RLA 15.4 Compressor Power Input 3250 Overload Protector Throttling Method Capillary Operation temp ºC...
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Page 9: Capacity Variation Ratio According To Temperature
Service Manual 2.2 Capacity Variation Ratio According to Temperature Cooling: Heating: Conditions Conditions Indoor:DB20°C/WB15°C Indoor:DB27°C/WB19°C Indoor air flow:Super High Indoor air flow:Super High Pipe length:5m Pipe length:5m Outdoor temp.(°C) Outdoor temp. (°C) 2.3 Cooling and Heating Data Sheet in Rated Frequency Cooling: Rated cooling Pressure of gas pipe... -
Page 10: Dimensions
Service Manual 3. Dimensions 3.1 Indoor Unit 1350 Φ70 Φ70 Unit:mm 3.2 Outdoor Unit 1000 Unit:mm Technical Information... -
Page 11: Refrigerant System Diagram
Service Manual 4. Refrigerant System Diagram Cooling only model Outdoor unit Indoor unit Gas pipe side Valve Di s charge Heat exchanger (evaporator) Suction Accumlator Compressor Heat exchanger Liquid pipe (condenser) side Valve Capillary Strainer Cooling and heating model Outdoor unit Indoor unit Gas pipe side... -
Page 12: Electrical Part
Service Manual 5. Electrical Part 5.1 Wiring Diagram ● Instruction Symbol Symbol Color Symbol Symbol Color Symbol Name White Green Grounding wire Yellow Brown COMP Compressor Blue Jumper Cap 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 13 Service Manual ● Outdoor Unit LM036CO-100P232-1X SHIELDING SHIELDING SHIELDING TRANSFORMER RESISTOR RESISTOR RESISTOR YEGN TERMINAL BLOCK N(1) OUTROOM OUTTUBE T-PIPE TR-IN TR-OUT W6BK COM-INNER AC-L BK(BN) AP1 PRINTED CIRCUIT BOARD W8BU YEGN COMP POWER CAP. 1/L1 CAP. (BU) W12YE 2/T1 HIGH PRESSURE YEGN...
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Page 14: Pcb Printed Diagram
Service Manual 5.2 PCB Printed Diagram Indoor Unit ● Top view Fan motor capacitor terminal Live wire Fuse Neutral wire Indoor & outdoor unit communication cable terminal 超强风接插端子 Low fan level terminal Medium fan level terminal High fan level terminal 风机零线接插端子... - Page 15 Service Manual Outdoor Unit /LM036CO-100P232-1X ● Top view Input of transformer Terminal for outdoor fan and compressor Output of transformer Terminal for high pressure protection Terminal for low pressure protection Terminal for outdoor ambient temp sensor Terminal for outdoor pipe temp sensor Current mutual-inductor Terminal for communication...
- Page 16 Service Manual LM036HO-100P232-1X ● Top view Input of transformer Terminal for 4-way valve Terminal for outdoor fan Terminal for compressor Output of transformer Terminal for high pressure protection Terminal for low pressure protection Terminal for outdoor ambient temp sensor Terminal for outdoor pipe temp sensor Terminal for communication wire...
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Page 17: Function And Control
Service Manual 6. Function and Control 6.1 Remote Controller Introduction Buttons on Remote Controller ON/OFF button ▲ button MODE button SWING button button FAN button TIMER OFF button CLOCK button TIMER ON button SLEEP button TEMP button TURBO button X-FAN button I FEEL button button... - Page 18 Service Manual HEAT AUTO COOL Technical Information...
- Page 19 Service Manual battery reinstall remove Cover of battery box Technical Information...
- Page 20 Service Manual Technical Information...
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Page 21: Brief Description Of Modes And Functions
Service Manual 6.2 Brief Description of Modes and Functions 1Temperature Parameters Indoor preset temperature (Tpreset) Indoor ambient temperature (Tamb.) 2 Basic Functions (The temperature in this manual is expressed by Centigrade. If Fahrenheit is used, the switchover between them is Tf=TcX1.8+32.) Once the unit is energized, the compressor shall never be restarted except 3mins interval at least. - Page 22 Service Manual When Tamb. Tpreset+2 , the unit starts drying and cooling operation. In this case, the compressor and outdoor fan operates and the indoor fan operates at low speed. When Tpreset-2 ≤Tamb. ≤Tpreset+2 , the unit will start drying operation. In this case, the indoor fan operates at low speed, and the compressor and the outdoor fan operate 6 minutes and stop 4 minutes in cycle.
- Page 23 Service Manual Protection Functions Overheating Prevention Protection If the evaporator tube temperature overheats, the outdoor fan stops operation. When the tube temperature resumes normally, the outdoor fan resumes operation. Noise Silencing Protection If the unit is turned off by pressing ON/OFF button or during mode switchover, the 4-way valve stops after 2 minutes. Overcurrent Protection ④...
- Page 24 Service Manual If swing function has not been set after startup of the unit, up & down horizontal louver will clockwise turn to position D in HEAT mode, or clockwise turn to level position L in other modes. If setting swing function while starting up the unit, the horizontal louver will swing between L and D. There are 7 kinds of swing status of horizontal louver: Positions L, A, B, C and D, swing between Land D and stop at any position between L and D (angles between L and D are equiangular).
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Page 25: 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 26 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 27: 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 28 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 29: Installation Parts-Checking
Service Manual 8.2 Installation Parts-checking 8.4 Electric Connection Requirement Name Name 1. Safety Precaution Indoor unit Sealing gum (1) Must follow the electric safety regulations when installing Outdoor unit Wrapping tape the unit. Support of outdoor (2) According to the local safety regulations, use qualified Connection pipe unit power supply circuit and air switch. - Page 30 Service Manual in the holes. 5. Connect the Pipe of Indoor Unit (3) Fix the wall-mounting frame on the wall with tapping screws (1) Aim the pipe joint at the corresponding bellmouth.(As show (ST4.2X25TA) and then check if the frame is firmly installed by in Fig.5) pulling the frame.
- Page 31 Service Manual 7. Connect Wire of Indoor Unit 8. Bind up Pipe (1) Open the panel, remove the screw on the wiring cover and (1) Bind up the connection pipe, power cord and drain hose then take down the cover.(As show in Fig.11) with the band.(As show in Fig.14) (2) Reserve a certain length of drain hose and power cord for installation when binding them.
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Page 32: Installation Of Outdoor Unit
Service Manual 8.6 Installation of Outdoor Unit Refer to the following table for wrench moment of force: 1. Fix the Support of Outdoor Unit(Select it according to Hex nut diameter(mm) Tightening torque(N.m) the actual installation situation) Φ6 15~20 Φ9.52 30~40 (1) Select installation location according to the house structure. -
Page 33: Vacuum Pumping And Leak Detection
Service Manual (3) The water outlet can't be placed in water in order to drain 8.8 Check after Installation and Test smoothly.(As show in Fig.27 Operation 1. Check after Installation Check according to the following requirement after finishing installation. The drain hose can't be fluctuant Items to be checked Possible malfunction Has the unit been... -
Page 34: Maintenance
Service Manual 9. Maintenance 9.1 Error Code Display Method of Indoor Unit Indicator lamp Possible Causes Malfunction (During blinking, ON for 0.5S A/C Status (For specific maintenance method, please refer to the following Name and OFF for 0.5 S) procedure of troubleshooting) Error Code COOL HEAT... - Page 35 Service Manual 1. The main board and the display panel are not connected well. 2. The HPP terminal on main board is not connected well with the high pressure switch on the complete unit. 3. The wiring of high pressure switch is loosened. 4.
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Page 36: Procedure Of Troubleshooting
Service Manual 9.2 Procedure of Troubleshooting 9.2.1 F1~F5 Malfunction Start Is the wiring terminal between temperature sensor and the controller loosened or poo rly contacted? Insert the temperature sensor tightly M alfunction is eliminated. Is there short circuit due to trip over of the pa rts? Make the parts upright Malfunction is... - Page 37 Service Manual 9.2.2 E1 Malfunction Start Are the display panel and main board Connect the display panel with the main board well Malfunction is eliminated. connected tightly? Are the HPP terminal on the main board connected Connect the terminal on the main board with Malfunction is eliminated.
- Page 38 Service Manual 9.2.3 E3 Malfunction Start Is the terminal Re-insert it tightly of low pressure switch to ensure reliable inserted well ? contact. Is the malfunction eliminated ? Is the higher than the acting Add refrigerant . value of the low pressure switch? Is the malfunction...
- Page 39 Service Manual 9.2.4 E4 Malfunction Start Check the system; System is abnormal (such as blockage) Problem is solved Eliminate the block- age inside the system Check wiring and Out door uni t’s mo tor is abnormal Problem is solved fan capacitor ; (under cooling mode) replace motor Check the unit to...
- Page 40 Service Manual 9.2.5 E5 Malfunction Troubleshooting for E5 malfunction Is the supply voltage unstable Normal fluctuation is within 10 % of the rated Malfunction is with big fluctuation? voltage on the nameplate eliminated Is the supply voltage too low Malfunction is Adjust the supply voltage to maintain it within Malfunction is with overload?
- Page 41 Service Manual 9.2.6 E6 Malfunction Poor contact any line may lead to communication malfunction Installation and Maintenance...
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Page 42: 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 43 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 44: Exploded View And Parts List
Service Manual 10. Exploded View and Parts List 10.1 Indoor Unit Installation and Maintenance... - Page 45 Service Manual Part Code Description LM036CI-100P232-1X LM036HI-100P232-1X Product Code Y6695 Y6705 Front Panel Assy 20900700005 20900700005 Decorative Strip Sub-Assy Stand Bar 2421212001 2421212001 Filter Sub-Assy 11122106 11122106 Front Case Sub-assy 20900700005 20900700005 Upper Guide Louver 1051216601 1051216601 Lower Guide Louver...
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Page 46: Outdoor Unit
Service Manual 10.2 Outdoor Unit LM036CO-100P232-1X Installation and Maintenance... - Page 47 Service Manual Part Code Description LM036CO-100P232-1X Product Code Y6696 Axial Flow Fan 10335005 Fan Motor 1501506203 Capacitor 3300008105 Main Board 30135843 Capacitor CBB61 33010011 AC Contactor 44010256 Transformer 43110236 Terminal Board 4201025801 Electric Box Assy 02613482 Left Side Plate 01305043P Top Cover Sub-Assy 01255007 Motor Support Sub-Assy...
- Page 48 Service Manual LM036HO-100P232-1X Installation and Maintenance...
- Page 49 Service Manual Part Code Description LM036HO-100P232-1X Product Code Y6706 Axial Flow Fan 10335005 Fan Motor 1501506203 Capacitor 3300008105 Main Board 30135844 Capacitor CBB61 33010011 AC Contactor 44010256 Transformer 43110236 Terminal Board 4201025801 Electric Box Assy 02613473 Left Side Plate 01305043P Top Cover Sub-Assy 01255007 Motor Support Sub-Assy...
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Page 50: Removal Procedure
Service Manual 11. Removal Procedure Warning: Be sure to discharge the refrigerant completely before removal. 11.1 Removal Procedure of Indoor Unit Steps Procedure 1.Before disassembly of the unit Axonometric drawing for the complete unit. 2.Remove filter panel Open the panel. Loosen the clasps on the filter. - Page 51 Service Manual Steps Procedure 3.Remove display display Remove 2 screws fixing display, and then remove the filter. 4.Remove panel clasp Pull the clasps at both sides slightly, and then remove the panel. panel 5.Remove horizontal louver Remove the axial bush on the horizontal louver, and then remove the horizontal louver.
- Page 52 Service Manual Steps Procedure 6.Remove top cover of electric box Remove screws fixing the top cover of electric box. screw Remove the top cover of electric box. top cover of electric box screw cap 7.Remove front case Remove the screw caps on front case. screw Remove screws connecting the front case.
- Page 53 Service Manual Steps Procedure 8.Remove earthing wire screw Remove earthing screws, and then remove the earthing wire. 9.Remove electric box cover clasp Loosen clasps at the left side of electric box. Loosen clasps on the right side of electric box. clasp electric box cover Remove electric box cover.
- Page 54 Service Manual Steps Procedure 10.Remove temperature sensor Pull out the indoor temperature sensor. temperature sensor 11.Remove electric box Pull out 6 sockets on PCB board. Pull out two screws on electric box. screw electric box Remove the electric box. Installation and Maintenance...
- Page 55 Service Manual Steps Procedure 12.Remove water tray water tray Pull the water tray upwards, and then remove the water tray. 13.Remove connection pipe between indoor and outdoor units Separate the connection pipe between indoor and outdoor units. connection position for indoor and outdoor units' connection pipe 14.Remove pipe-stopping plate Remove two screws on pipe-stopping plate for indoor unit, and then remove the pipe-stopping...
- Page 56 Service Manual Steps Procedure 16.Remove evaporator screw Remove screws between evaporator and bottom case. Turn over the indoor unit and adjust the pipe line to the position as shown by the broken line. Lift up the evaporator, and then remove the evaporator.
- Page 57 Service Manual Steps Procedure 18.Remove cross flow blade and motor blade motor Remove screws fixing cross flow blade and motor. Remove the motor sub-assy. Separate two cross flow blade. Installation and Maintenance...
- Page 58 Service Manual Steps Procedure 19.Remove cushion rubber Remove the cushion rubber on cross flow blade. cushion rubber Remove the cushion rubber from the base. Installation and Maintenance...
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Page 59: Removal Procedure Of Outdoor Unit
Service Manual 11.2 Removal Procedure of Outdoor Unit NOTE:Take LM036HO-100P232-1X unit as example. Steps Procedure 1. Remove top cover plate and front s ide panel Unscrew the screws connect to top top cover cover plate, panel, right ,left side panel and valve cover by screwdriver to remove the top cover plate and... - Page 60 Service Manual Steps Procedure Unscrew the screws of panel, chassis panel and motor support by screwdriver to remove the panel. 3. Remove rear grille rear grille Disassemble the screws fixing rear grille and right&left side panel by screwdriver to remove the rear grille .
- Page 61 Service Manual Steps Procedure Remove electric box assy electric box assy Unscrew the connection screws of electric box assy and isolation sheet by screwdriver to remove the electric box assy. Remove right side plate assy Unscrew the connection screws of right side plate and chassis, valve right side plate assy support and condenser assy to remove...
- Page 62 Service Manual Steps Procedure Remove left side plate Unscrew the connection screws of left side plate and chassis by screwdriver to remove the left side plate. left side plate Remove axial flow louver Unscrew the nuts of louver by wrench to remove the axial flow louver.
- Page 63 Service Manual Steps Procedure 11. Remove motor support motor support Unscrew the tapping screw fixing motor support, lift it upward to remove the motor support. 12. Remove valve assy Unscrew the 2 bolts fixing valve assy, unsolder the spot weld of gas valve and return-air pipe t remove the gas valve (Note: Please wrap the gas valve completely by wet cloth to avoid high temperature...
- Page 64 Service Manual Procedure Steps 14. Remove isolation sheet assy Unscrew the screws of isolation sheet, side plate of condenser and chassis to remove the isolation sheet. isolation sheet assy 15. Remove isolating support plate (condenser) Unscrew the screws of isolating support plate (condenser) and condenser assy support plate to remove the isolating support plate...
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Page 65: 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 （℉）... -
Page 66: 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 67: 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 Units (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... - Page 68 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 69 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...
- Page 70 JF00302559 Visit us at www.lennox.com, or contact us at 1-877-726-0024. © 2014 Lennox Industries Inc. For a complete list of the registered and common law trademarks owned by Lennox Industries Inc., please visit www.lennox.com.
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