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Thank you for selecting LENNOX air conditioners.

Service Manual

Models: LM012CI-100V232-1X LM012CO-100V232-1X

LM012HI-100V232-1X/LM012HO-100V232-1X
(Refrigerant

R22)

Содержание LM012CI-100V232-1X

Страница 1: ...Thank you for selecting LENNOX air conditioners Service Manual Models LM012CI 100V232 1X LM012CO 100V232 1X LM012HI 100V232 1X LM012HO 100V232 1X Refrigerant R22...

Страница 2: ...roller Introduction 12 6 3 Brief Description of Modes and Functions 16 Part Installation and Maintenance 21 7 Notes for Installation and Maintenance 21 8 Installation 23 8 1 Installation Dimension Dia...

Страница 3: ...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 5...

Страница 4: ...Y6185 1 Technical Information Service Manual 1 Summary Indoor Unit LM012CI 100V232 1X LM012HI 100V232 1X Part Technical Information Outdoor Unit LM012CO 100V232 1X Remote Controller LM012HO 100V232 1X...

Страница 5: ...100V232 1X LM012HI 100V232 1X Indoor Unit Product Code Y6687 Y6697 Fan Type Cross flow Cross flow Diameter Length DXL mm 98X580 98X580 Fan Motor Cooling Speed SH H M L SL r min 1450 1200 1050 800 145...

Страница 6: ...LA A 0 34 0 53 Fan Motor Capacitor F 7 7 Air Flow Volume of Outdoor Unit m3 h 1600 1800 Fan Type Axial flow Axial flow Fan Diameter mm 394 5 400 Defrosting Method Automatic Defrosting Climate Type T1...

Страница 7: ...utlet pipe temperature of condenser P Pressure at the side of big valve Connection pipe length 5 m Rated cooling condition C DB WB Model Pressure of gas pipe connecting indoor and outdoor unit Inlet a...

Страница 8: ...5 Technical Information Service Manual H D W 78 88 35 103 462 148 55 55 35 90 150 54 168 5 462 159 5 55 55 54 3 Outline Dimension Diagram 3 1 Indoor Unit Unit mm Models W H D All models 790 275 200...

Страница 9: ...6 Technical Information Service Manual 714 776 510 286 257 320 540 3 2 Outdoor Unit Unit mm LM012HO 100V232 1X LM012CO 100V232 1X Unit mm 714 257 540 286 320 776 510...

Страница 10: ...or unit COOLING HEATING Accumlator 4 Way valve Discharge Suction Discharge Suction Heat exchanger evaporator Heat exchanger evaporator Heat exchanger condenser Heat exchanger condenser Valve Valve Val...

Страница 11: ...ck Note Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model LM012CI 100V232 1X OUTDOOR UNIT AP2 COMP AC L 2 N 1 N1 TC CAP JUMP TR OUT TR IN SWING UD M2 STE...

Страница 12: ...03 6 1625 7 6 1625 6 1625 57 57 6 1 8 0 67 33 1 02725 75 16 250 5 75 1 75 287 7 63 5 9 5 1 63 2 5 1 02725 63 63 3 3 803 3 2 1 203 1 7 50 1 2 11 7 1 2 97 8 7 8 97 2 9 325 725 3 1 1 57 3 7 3 1 1 1 8 32...

Страница 13: ...10 Technical Information Service Manual These wiring diagrams are subject to change without notice please refer to the one supplied with the unit LM012HO 100V232 1X...

Страница 14: ...3 Neutral wire interface of power cord 4 Neutral wire interface of cold plasma 5 Interface of PG motor 6 Interface of outdoor motor 7 Interface of 4 way valve 8 Live wire interface of cold plasma 9 I...

Страница 15: ...putting through the power the air conditioner will give out a sound Operation indictor is ON red indicator After that you can operate the air conditioner by using remote controller Under on status pr...

Страница 16: ...13 Technical Information Service Manual AUTO COOL DRY FAN HEAT OFF...

Страница 17: ...14 Technical Information Service Manual battery Cover of battery box remove reinstall...

Страница 18: ...15 Technical Information Service Manual...

Страница 19: ...to indoor ambient temperature There swill be 30s delayed for protection between mode switchover When Tamb 26 unit will be in cooling mode Ex factory set temperature is 25 Cooling and heating unit Whe...

Страница 20: ...of IDU fan motor will be eliminated For some models they can only be restated up after re energized Please refer to maintenance part for display information and disposal method for details 3 Drying mo...

Страница 21: ...unit or during mode switchover the 4 way valve is closed In order to decrease noise the 4 way valve will delay 2mins to be closed Overcurrent protection this protection function is not available for...

Страница 22: ...operates Press this button again to turn off the unit 3 Sleep function In this mode the system will select proper sleep curve to operate according to different set temperature If start up sleep funct...

Страница 23: ...mperature set fan speed general timer Fahrenheit Celsius General timer can be memorized Time of timer is calculated again from energization Clock timer can t be memorized 4 Special Function 1 Health f...

Страница 24: ...unit adequately grounded The grounding wire can t be used for other purposes 6 Must apply protective accessories such as protective boards cable cross loop and wire clip 7 The live wire neutral wire a...

Страница 25: ...ng tape 4 Electroprobe 7 Electronic leakage detector 10 Pipe pliers pipe cutter 2 Screw driver 5 Universal meter 8 Vacuum pump 11 Pipe expander pipe bender 3 Impact drill drill head electric drill 6 T...

Страница 26: ...t least 15cm At least 50cm At least 50cm At least 30cm At least 300cm At least 200cm Space to the obstruction Space to the obstruction Space to the obstruction Space to the ceiling Space to the obstru...

Страница 27: ...or unit Make the bound pipes pass through the wall hole and then connect outdoor unit Neaten the pipes Vacuum pumping and leakage detection Check after installation and test operation Finish installat...

Страница 28: ...s first class electric appliance It must be properly grounding with specialized grounding device by a professional Please make sure it is always grounded effectively otherwise it may cause electric sh...

Страница 29: ...g 2 Note Insulating pipe Torque wrench Open end wrench Indoor pipe Pipe Union nut Union nut Pipe joint Pipe Hex nut diameter mm Tightening torque N m 6 15 20 9 52 30 40 12 45 55 16 60 65 19 70 75 Refe...

Страница 30: ...l wire to the wiring terminal according to the color tighten the screw and then fix them with wire clip As show in Fig 13 Note Fig 11 Fig 12 Fig 13 Fig 14 Fig 15 Wiring cover Screw Panel Do not bend t...

Страница 31: ...the handle As show in Fig 21 2 Remove the screw cap of valve and aim the pipe joint at the bellmouth of pipe As show in Fig 22 3 Pretightening the union nut with hand 4 Tighten the union nut with torq...

Страница 32: ...r completely and operate for 10 15min to check if the pressure of piezometer remains in 0 1MPa 4 Close the vacuum pump and maintain this status for 1 2min to check if the pressure of piezometer remain...

Страница 33: ...ensor is damaged Please check it by referring to the resistance table for temperature sensor 4 Main board is broken 3 Blocked protection of IDU fan motor H6 IDU fan ODU fan compressor and electric hea...

Страница 34: ...oken Malfunction diagnosis process Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted Start Insert the temperature sensor tightly Yes Yes Yes Yes Yes...

Страница 35: ...he connection of PG motor control terminal is firm Turn on the unit again measure whether the output voltage on control terminal for PG motor is more than 50V within 1 min after the louvers are opened...

Страница 36: ...the mainboard is defined abnormal Malfunction diagnosis process Start Is there jumper cap on the mainboard Is the jumper cap inserted correctly and tightly Replace the jumper cap with the same model...

Страница 37: ...ambient temperature is higher than 53 C If the airflow of indoor and outdoor unit is good If the indoor and outdoor fan are running normally Replace outdoor mainboard Connect normally Adjust the conn...

Страница 38: ...harges slowly The zero cross detectioncircuit of the mainboard is defined abnormal Malfunction diagnosis process Turn power off for 1minute the turn back on The unit returns to normal Conclusion U8 is...

Страница 39: ...for details Malfunction of compressor Compressor can t operate Refer to point 5 of maintenance method for details 9 3 Maintenance Method for Normal Malfunction 1 Air Conditioner Can t be Started Up 2...

Страница 40: ...n pipe Replace drain pipe Wrapping is not tight Water leaking from the pipe connection place of indoor unit Wrap it again and bundle it tightly 5 Compressor Can t Operate Possible causes Discriminatin...

Страница 41: ...38 Installation and Maintenance Service Manual 10 Exploded View and Parts List 10 1 Indoor Unit...

Страница 42: ...1252043 1 14 Cross Flow Fan 10352059 10352059 1 15 Fan Motor 1501208902 1501208902 1 16 Connecting pipe clamp 2611216401 2611216401 1 17 Rubber Plug Water Tray 76712012 76712012 1 18 Stepping Motor 15...

Страница 43: ...40 Installation and Maintenance Service Manual LM012CO 100V232 1X 10 2 Outdoor Unit...

Страница 44: ...3000600452 1 9 Valve 07100024 1 10 Valve 07100147 1 11 Big Handle 262334332 1 12 Valve Support 0170308901P 1 13 Right Side Plate 0130317201P 1 14 Electric Box Assy 10000202295 1 15 Terminal Board 4201...

Страница 45: ...42 Installation and Maintenance Service Manual LM012HO 100V232 1X...

Страница 46: ...assy 03000600446 1 11 Valve 07100147 1 12 Valve 07100024 1 13 Big Handle 2623343106 1 14 Valve Support 01703089P 1 15 Right Side Plate Sub Assy 01303178 1 16 Electric Box Assy 10000202242 1 17 Termina...

Страница 47: ...ith hand and then separate the horizontal louver from the crankshaft of step motor to remove it Horizontal louver Location of step motor Procedure Step 2 Remove horizontal louver Front panel Front cas...

Страница 48: ...nt case sub assy is different for different models Loosen the connection clasps between vertical louver and bottom case to remove vertical louver Loosen the connection clasps between front case sub as...

Страница 49: ...ead wire and rotate the electric box assy Twist off the screws that are locking the wire clip Loosen the power cord and remove its wiring terminal Lift up the main board and take it of Remove the disp...

Страница 50: ...terminals 2 Pull out the holder for some terminals at first holder is not available for some wiring terminal hold the connector and then pull the terminal circlip soft sheath holder connector Procedu...

Страница 51: ...he screws at the connection place of cross flow blade and motor lift the motor and cross flow blade upwards to remove them Remove the bearing holder sub assy Remove the screw fixing step motor and the...

Страница 52: ...ting unit for example 1 Before disassembly 2 Remove big handle Remove the connection screw fixing the big handle and then remove the handle 3 Remove top panel Remove connection screws connecting the t...

Страница 53: ...el with the chassis and the motor support and then remove the front panel Remove connection screws connecting the right side plate with the chassis the valve support and the electric box Then remove t...

Страница 54: ...ft the motor support to remove it 9 Remove electric box Remove screws fixing the electric box subassembly loosen the wire bundle and unplug the wiring terminals Then lift the electric box to remove it...

Страница 55: ...welding slag during unsoldering Remove the 2 screws fixing the gas valve and unsolder the welding point between the gas valve and the air return pipe to remove the gas valve NOTE Discharge the refrig...

Страница 56: ...32 0 55 56 55 4 13 79 80 78 8 26 34 35 33 8 1 57 58 57 2 14 81 80 6 27 36 35 6 2 59 60 59 15 82 83 82 4 28 37 38 37 4 3 61 62 60 8 16 84 85 84 2 29 39 40 39 2 4 63 62 6 17 86 87 86 30 41 42 41 5 64 65...

Страница 57: ...llowing steps A Cut the pip Confirm the pipe length according to the distance of indoor unit and outdoor unit Cut the required pipe with pipe cutter B Remove the burrs Remove the burrs with shaper and...

Страница 58: ...88 33 10 63 72 2 439 111 0 737 5 63 46 34 10 2 73 2 358 112 0 717 4 60 23 35 9 779 74 2 28 113 0 697 3 57 18 36 9 382 75 2 206 114 0 678 2 54 31 37 9 003 76 2 133 115 0 66 1 51 59 38 8 642 77 2 064 1...

Страница 59: ...983 5 84 61 34 13 59 73 3 144 112 0 956 4 80 31 35 13 04 74 3 04 113 0 93 3 76 24 36 12 51 75 2 94 114 0 904 2 72 41 37 12 76 2 844 115 0 88 1 68 79 38 11 52 77 2 752 116 0 856 0 65 37 39 11 06 78 2 6...

Страница 60: ...62 11 32 101 3 22 15 362 9 24 51 41 63 10 93 102 3 13 14 342 8 25 49 19 64 10 54 103 3 04 13 323 9 26 47 08 65 10 18 104 2 96 12 306 2 27 45 07 66 9 83 105 2 87 11 289 6 28 43 16 67 9 49 106 2 79 10 2...

Страница 61: ...t www lennox com or contact us at 1 877 726 0024 by Lennox Industries Inc please visit www lennox com 2014 Lennox Industries Inc For a complete list of the registered and common law trademarks owned J...

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