Related Manuals for Lennox LM012CI-100V232-1X
Summary of Contents for Lennox LM012CI-100V232-1X
- Page 1 Service Manual Models: LM012CI-100V232-1X LM012CO-100V232-1X LM012HI-100V232-1X/LM012HO-100V232-1X (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 Curve in Different Outdoor Temperature ............4 2.3 Cooling Data Sheet in Rated Frequency .................4 3. Outline Dimension Diagram ................5 3.1 Indoor Unit ........................5 3.2 Outdoor Unit ........................6... - Page 3 Service Manual 10. Exploded View and Parts List ..............38 10.1 Indoor Unit ........................38 10.2 Outdoor Unit .........................40 11. Removal Procedure ..................44 11.1 Removal Procedure of Indoor Unit ................44 11.2 Removal Procedure of Outdoor Unit ................49 Appendix: ........................53 Appendix 1: Reference Sheet of Celsius and Fahrenheit ............53 Appendix 2: Configuration of Connection Pipe ..............53 Appendix 3: Pipe Expanding Method ...................54 Appendix 4: List of Resistance for Temperature Sensor ............55...
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Page 4: Part Ⅰ : Technical Information
Service Manual Part Ⅰ : Technical Information 1. Summary Indoor Unit: LM012CI-100V232-1X LM012HI-100V232-1X Outdoor Unit: LM012HO-100V232-1X LM012CO-100V232-1X Remote Controller: Y6185 Technical Information... -
Page 5: Specifications
Service Manual 2. Specifications 2.1 Specification Sheet LM012CI-100V232-1X/ LM012HI-100V232-1X/ Model LM012CO-100V232-1X LM012HO-100V232-1X Product Code Y6687/Y6688 Y6697/Y6698 Rated Voltage Power Rated Frequency Supply Phases Power Supply Mode Indoor Indoor Cooling Capacity 3370 3282 Heating Capacity 3517 Cooling Power Input 1190 1180... - Page 6 Service Manual Model of Outdoor Unit LM012CO-100V232-1X LM012HO-100V232-1X Outdoor Unit Product Code Y6688 Y6698 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer/Trademark CO., LTD. CO.,LTD Compressor Model QX-B172xC030 QX-B172xC030 Compressor Oil ATMOS NM56EP ATOMS-NM56EP Compressor Type Rotary Rotary L.R.A. Compressor RLA 10.3 Compressor Power Input 1140...
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Page 7: Capacity Curve In Different Outdoor Temperature
Service Manual 2.2 Capacity Curve in Different Outdoor Temperature Heating Cooling Conditions Indoor:DB27ºC WB19 ºC Conditions Indoor air flow: Super High Indoor:DB20 ºC Pipe length: 5m Indoor air flow：Supper High Pipe length：5m 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 Outdoor temp.(ºC) Outdoor temp.(ºC) 2.3 Cooling Data Sheet in Rated Frequency... -
Page 8: Outline Dimension Diagram
Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit 168.5 159.5 Φ55 Φ55 Φ55 Φ55 Unit:mm Models All models Technical Information... -
Page 9: Outdoor Unit
Service Manual 3.2 Outdoor Unit LM012HO-100V232-1X Unit:mm LM012CO-100V232-1X Unit:mm Technical Information... -
Page 10: Refrigerant System Diagram
Service Manual 4. Refrigerant System Diagram Cooling: 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 Outdoor unit Indoor unit Gas pipe side Valve... -
Page 11: Electrical Part
Blue Grounding wire YEGN Yellow/Green Black Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model. ● Indoor Unit LM012CI-100V232-1X BU(WH) TUBE TEMP. ROOM TEMP. RECEIVER AND FAN MOTOR SENSOR SENSOR... - Page 12 Service Manual LM012HI-100V232-1X Ⅱ ● Outdoor Unit LM012CO-100V232-1X Technical Information...
- Page 13 Service Manual LM012HO-100V232-1X These wiring diagrams are subject to change without notice; please refer to the one supplied with the unit. Technical Information...
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Page 14: Pcb Printed Diagram
Service Manual 5.2 PCB Printed Diagram ● Top view Name Interface of compressor Live wire interface of power cord Neutral wire interface of power cord Neutral wire interface of cold plasma Interface of PG motor Interface of outdoor motor Interface of 4-way valve Live wire interface of cold plasma Interface of up &... -
Page 15: Function And Control
Service Manual 6. Function and Control 6.1 Remote Controller Introduction 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 Introduction for icons on display screen Set fan speed... - Page 16 Service Manual HEAT AUTO COOL Technical Information...
- Page 17 Service Manual battery reinstall remove Cover of battery box Technical Information...
- Page 18 Service Manual Technical Information...
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Page 19: Brief Description Of Modes And Functions
Service Manual 6.3 Brief Description of Modes and Functions 1. Summary (1) Buzzer When the controller is energized or receives signal from button (emergency operation switch on air conditioner) or remote controller, the buzzer will give out a beep. (2) Display ◆... - Page 20 Service Manual ② Protection function ◆ Freeze protection During operation, when controller detected that Ttube≤0℃ for a consecutive period of time, the system enters into freeze protection. In that case, the compressor and the ODU fan stop operation, while the IDU operates at set fan speed. If freeze protection is released and the compressor has been out of operation for 3 mins, the unit will resume its previous operation status.
- Page 21 Service Manual (4) Fan mode ① Operation condition and process for fan mode In fan mode, the IDU fan motor operates at set speed, while the compressor and the ODU fan motor stop. 4-way valve is de-energized (4-way valve is not available for cooling only unit). Temperature setting range is 16~30℃ . ②...
- Page 22 Service Manual the general timer function of controller can be activated; when you select the remote controller with clock timer, only the clock timer function of controller can be activated. ① General timer: The precision of general timer is 0.5hour. 24hours circulated timer can’t be set. ◆...
- Page 23 Service Manual (8) Dual-8 nixie tube display ◆ When the air conditioner is turned on for the first time, dual-8 nixie tube defaulted to display current set temperature. ◆ When controller receives signal of display set temperature, dual-8 nixie tube displays set temperature. When received remote control signal is switched to indoor ambient temperature display status signal from other display status, dual-8 nixie tube will display indoor ambient temperature for 3-5s, and then turn back to display set temperature.
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Page 24: 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 25 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 26: Installation
Service Manual 8. Installation 8.1 Installation Dimension Diagram Space to the wall At least 15cm At least 15cm Space to the wall Drainage pipe Installation and Maintenance... - Page 27 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 wall-mounting Install the support of outdoor unit frame, drill wall holes (select it according to the actual situation) Connect pipes of indoor Fix outdoor unit...
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Page 28: 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 29 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 30 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 Screw...
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Page 31: Installation Of Outdoor Unit
Service Manual 8.6 Installation of Outdoor Unit (3) Pretightening the union nut with hand. (4) Tighten the union nut with torque wrench . 1. Fix the Support of Outdoor Unit(Select it according to Refer to the following table for wrench moment of force: the actual installation situation) Tightening torque(N . -
Page 32: Vacuum Pumping And Leak Detection
Service Manual 2. Leakage Detection Note: (1) With leakage detector: (1) The through-wall height of drain hose shouldn't be higher Check if there is leakage with leakage detector. than the outlet pipe hole of indoor unit.(As show in Fig.25) (2) With soap water: (2) Slant the drain hose slightly downwards. -
Page 33: Maintenance
Service Manual 9. Maintenance 9.1 Error Code Display Method Possible Causes(For specific maintenance method, Malfunction of Indoor Unit A/C Status please refer to the following procedure of Name (Error Code) troubleshooting) 1.The wiring terminal between indoor ambient temperature The unit will stop operation as it sensor and main board is loosened or poorly contacted;... -
Page 34: Procedure Of Troubleshooting
Service Manual 9.2 Procedure of Troubleshooting 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 35 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 36 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 37 Service Manual 4. High temperature and overload protection (AP1 below means control board of outdoor unit) E8 Main detection points: ● If the outdoor ambient temperature is in normal range; ● If the indoor and outdoor fan are running normally; ●...
- Page 38 Service Manual 5. 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...
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Page 39: 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 40 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 41: Exploded View And Parts List
Service Manual 10. Exploded View and Parts List 10.1 Indoor Unit Installation and Maintenance... - Page 42 Service Manual Part Code Description LM012CI-100V232-1X LM012HI-100V232-1X Product Code Y6687 Y6697 Front Panel 27230003811 20000300026S Display Board 30565260 30565289 Front Case Assy 00000200040 00000200040 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Rear Case assy 20162010 20162010 Drainage Hose...
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Page 43: Outdoor Unit
Service Manual 10.2 Outdoor Unit LM012CO-100V232-1X Installation and Maintenance... - Page 44 Service Manual Part Code Description LM012CO-100V232-1X Product Code Y6688 Front Grill 22413008 Front Panel 01533034P Chassis Sub-assy 01700000063P Compressor and Fittings 00103349 Compressor Gasket 76710247 Inhalation Tube 1 03001000197 Discharge Tube 03500800434 Capillary Sub-assy 03000600452 Valve 07100024 Valve 07100147 Big Handle 262334332 Valve Support 0170308901P...
- Page 45 Service Manual LM012HO-100V232-1X Installation and Maintenance...
- Page 46 Service Manual Part Code Description LM012HO-100V232-1X Product Code Y6698 Front Grill 22413008 Front Panel 01533034P Chassis Sub-assy 01700000061P Drainage Connecter 06123401 Compressor and Fittings 00103349 Magnet Coil 4300040021 4-Way Valve Assy 03073357 4-Way Valve 430004022 Strainer A 07210022 Capillary Sub-assy 03000600446 Valve 07100147...
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Page 47: Removal Procedure
Service Manual 11. Removal Procedure 11.1 Removal Procedure of Indoor Unit Caution: discharge the refrigerant completely before removal. Step Procedure Front panel the groove on the front panel. Front case respectively. Groove 2. Remove horizontal louver Push out the axile bush on horizontal louver. - Page 48 Service Manual Step Procedure 4. Remove electric box cover Screw Electric box cover Remove the screws on the electric box cover to remove the electric box cover. 5. Remove front case sub-assy Screws Remove the screws fi xing front case. Note: 1.Open the screw caps before removing the screws around the air outlet.
- Page 49 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 fi xing electric box assy . Electric box Shield cover of electric box sub-assy...
- Page 50 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 fi rst, hold the circlip and then pull out the terminals.
- Page 51 Service Manual Step Procedure 9. Remove motor and cross fl ow blade Remove the screws fixing motor clamp Screws and then remove the motor clamp. Motor clamp Cross fl ow 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...
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Page 52: Removal Procedure Of Outdoor Unit
Service Manual 11.2 Removal Procedure of Outdoor Unit Take cooling and heating unit for example. 1. Before disassembly 2. Remove big handle Remove the connection screw fixing the big handle big handle and then remove the handle. 3. Remove top panel top panel Remove connection screws connecting the top panel with the front panel and the right side plate,... - Page 53 Service Manual 4. Remove front grille Remove connection screws between the front grille and the front panel. Then remove the front grille. front grille 5. Remove front panel Remove connection screws connecting the front panel with the chassis and the motor support, and then remove the front panel.
- Page 54 Service Manual 8. Remove motor and motor support motor support Remove the 4 tapping screws fixing the motor and disconnect the leading wire insert of the motor. Then remove the motor. Remove the 2 tapping screws fixing the motor support and lift the motor support to remove it. motor 9.
- Page 55 Service Manual 12. Remove magnet coil magnet coil Remove the screw fixing the magnet coil and then remove the coil. 13. Remove valves and 4-way valve subassembly 4-way valve Unsolder welding joint connecting the capillary, the valve and the outlet pipe of condenser to remove the capillary.
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Page 56: 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(°C) Celsius(°C) Celsius(°C) temperature (°F) temperature (°F) temperature (°F) (°F) (°F) (°F) -
Page 57: 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 58: 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 59 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 60 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 61 JF00302562 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.