manualshive.com logo in svg

Lennox LI012CI-160P432-1, Service Manual, Page: 2 / 126

Share
Download
Lennox LI012CI-160P432-1 Service Manual Download Page 2

Service Manual

Table of Contents

Part 

Ⅰ

: Technical Information

 .......................................................................1

1. Summary

 ......................................................................................................................1

2. Specifications

 ..........................................................................................................3

2.1 Specification Sheet

 ...........................................................................................................3

2.2 Operation Characteristic Curve

 ........................................................................................9

2.3 Capacity Variation Ratio According to Temperature

 .........................................................9

2.4 Cooling and Heating Data Sheet in Rated Frequency

 ...................................................10

2.5 Noise Curve

 ....................................................................................................................11

3. Outline Dimension Diagram

 ......................................................................12

3.1 Indoor Unit ......................................................................................................................12

3.2 Outdoor Unit

 ...................................................................................................................13

4. Refrigerant System Diagram

 ....................................................................15

5. Electrical Part

.........................................................................................................17

5.1 Wiring Diagram ...............................................................................................................17
5.2 PCB Printed Diagram .....................................................................................................21

6. Function and Control

 ......................................................................................25

6.1 Remote Controller Introduction 

 .....................................................................................25

6.2 Brief Description of Modes and Functions

 ......................................................................29

Part 

Ⅱ

: Installation and Maintenance 

 .................................................39

7. Notes for Installation and Maintenance

 ..........................................39

8. Installation

 ................................................................................................................42

8.1 Installation Dimension Diagram ......................................................................................42

8.2 Installation Parts-checking 

 ............................................................................................44

8.3 Selection of Installation Location ....................................................................................44

8.4 Requirements for Electric Connection 

 ...........................................................................44

8.5 Installation of Indoor Unit ................................................................................................44

8.6 Installation of Outdoor Unit

 .............................................................................................47

8.7 Vacuum Pumping and Leak Detection

 ...........................................................................48

8.8 Check after Installation and Test Operation

 ...................................................................48

9. Maintenance

 ............................................................................................................49

9.1 Error Code List

 ...............................................................................................................49

9.2 Troubleshooting for Main Malfunction

 ............................................................................56

9.3 Troubleshooting for Normal Malfunction

 .........................................................................74

Table of Contents

Summary of Contents for LI012CI-160P432-1

Page 1: ...ice Manual Models LI012CI 160P432 1 LI012CO 160P432 1 LI012HI 160P432 1 LI012HO 160P432 1 LI018CI 160P432 1 LI018CO 160P432 1 LI018HI 160P432 1 LI018HO 160P432 1 LI024CI 160P432 1 LI024CO 160P432 1 LI...

Page 2: ...and Control 25 6 1 Remote Controller Introduction 25 6 2 Brief Description of Modes and Functions 29 Part Installation and Maintenance 39 7 Notes for Installation and Maintenance 39 8 Installation 42...

Page 3: ...11 1 Removal Procedure of Indoor Unit 92 11 2 Removal Procedure of Outdoor Unit 102 Appendix 118 Appendix 1 Reference Sheet of Celsius and Fahrenheit 118 Appendix 2 Configuration of Connection Pipe 1...

Page 4: ...nical Information Indoor Unit LI012CI 160P432 1 LI018CI 160P432 1 LI024CI 160P432 1 LI012HI 160P432 1 LI018HI 160P432 1 LI024HI 160P432 1 Outdoor Unit LI012CO 160P432 1 LI012HO 160P432 1 LI018CO 160P4...

Page 5: ...1 LI018CO 160P432 1 LI018CI 160P432 1 LI018CO 160P432 1 3 LI024CI 160P432 1 LI024CO 160P432 1 LI024CI 160P432 1 LI024CO 160P432 1 4 LI012HI 160P432 1 LI012HO 160P432 1 LI012HI 160P432 1 LI012HO 160P4...

Page 6: ...20Y03 20Y11 Fan Type Cross flow Cross flow Diameter Length DXL inch 3 55 64X25 3 55 64X25 Fan Motor Cooling Speed SH H M L SL r min 1350 1200 1000 800 1350 1200 1000 800 Fan Motor Heating Speed SH H M...

Page 7: ...2X3 4X21 21 32 Fan Motor Speed rpm 900 900 Output of Fan Motor W 30 30 Fan Motor RLA A 0 37 0 37 Fan Motor Capacitor F 2 5 2 5 Air Flow Volume of Outdoor Unit CFM 942 942 Fan Type Axial flow Axial flo...

Page 8: ...160P432 1 Indoor Unit Product Code 20Y05 20Y13 Fan Type Cross flow Cross flow Diameter Length DXL inch 4 3 16X27 13 16 4 1 4X32 11 16 Fan Motor Cooling Speed SH H M L r min 1350 1200 1050 900 1350 120...

Page 9: ...5 8X26X7 8 33 5 8X26X7 8 Fan Motor Speed rpm 880 820 Output of Fan Motor W 40 60 Fan Motor RLA A 0 70 0 70 Fan Motor Capacitor F Air Flow Volume of Outdoor Unit CFM 1412 1766 Fan Type Axial flow Axia...

Page 10: ...or Unit Product Code 20Y07 20Y17 Fan Type Cross flow Cross flow Diameter Length DXL inch 4 1 4X32 43 64 4 1 4X32 43 64 Fan Motor Cooling Speed SH H M L r min 1300 1150 1000 850 1300 1150 1000 850 Fan...

Page 11: ...1 32X1 1 2X24 1 4 31 21 32X1 1 2X24 1 4 Fan Motor Speed rpm 800 800 Output of Fan Motor W 60 60 Fan Motor RLA A 0 65 0 65 Fan Motor Capacitor F Air Flow Volume of Outdoor Unit CFM 1883 1883 Fan Type A...

Page 12: ...4 F WB19 04 F Indoor air flow High Pipe lengt 24 6ft Conditions Indoor DB70 F WB60 Outdoor DB19 94 F WB19 04 F Indoor air flow High Pipe lengt 24 6ft Conditions Indoor DB80 F WB66 9 F Outdoor DB95 F I...

Page 13: ...2 in 167 181 4 out 98 6 118 4 Super High High 75 Instruction T1 Inlet and outlet pipe temperature of evaporator T2 Inlet and outlet pipe temperature of condenser P Pressure at the side of big valve Co...

Page 14: ...Indoor side noise when blowing Outdoor side noise when blowing Indoor fan motor rotating speed Compressor frequency Hz Noise dB A 50 60 30 40 20 Low Middle High Super High 40 42 44 46 48 50 52 54 56 2...

Page 15: ...3 5 16 5 1 3 8 1 3 8 4 27 7 3 16 5 1 2 7 1 2 1 1 2 2 3 16 2 3 16 3 1 8 6 1 11 16 8 1 8 27 7 5 16 2 3 4 2 3 4 MODEL W H D 12K 33 1 4 11 3 8 8 1 4 18K 38 3 16 11 13 16 8 13 16 24K 42 7 16 12 13 16 9 11...

Page 16: ...cal Information Service Manual 3 2 Outdoor Unit Unit inch 30 9 16 21 1 4 12 5 8 28 11 1 4 20 10 1 8 LI012CO 160P432 1 LI012HO 160P432 1 35 3 8 32 3 16 21 2 3 13 1 2 12 23 1 2 14 7 8 Unit inch LI018CO...

Page 17: ...14 Technical Information Service Manual LI018HO 160P432 1 LI024CO 160P432 1 LI024HO 160P432 1 33 7 64 12 11 64 25 7 16 14 11 16 35 29 32 22 29 32 13 47 64 Unit inch...

Page 18: ...side Gas pipe side Strainer Capillary Compressor Electron expansion valve Indoor unit Outdoor unit COOLING HEATING 4 Way valve Discharge Suction Heat exchanger evaporator Heat exchanger condenser Valv...

Page 19: ...iquid pipe side Gas pipe side Strainer Capillary Compressor Indoor unit Outdoor unit COOLING HEATING 4 Way valve Discharge Suction Heat exchanger evaporator Heat exchanger condenser Valve Valve Liquid...

Page 20: ...ck VT Violet OG Orange Note Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model 600007000575 67 33 1 3 2 7 50 1 9 325 725 803 3 0 1 2 5 1 1 1 1 1 7 8 20 28...

Page 21: ...8 8 5 0 1 7 5 1 32 5 1 1 75 2 8 5 8 5 1 1 1 1 8 1 1 02725 1 1 2 1 5 5 725 2 0 LI012CO 160P432 1 60000706165502 1 225 81 7 JURXQG RQO LURQ VKHOO PRWRU DSSOLHV WR WKH 0RWRU 127 RI HOHFWULF VKRFN 3OHDVH...

Page 22: ...Q SRZHUHG RII IRU OHVV WKDQ PLQXWHV WR SUHYHQW WKH ULVN RI HOHFWULF VKRFN 51 1 1 9 9 3 16 21 7521 9 LI024CO 160P432 1 60000706255401 60000706184801 LI018CO 160P432 1 1 2 7 50 1 7 03 6 1625 867 7 03 6...

Page 23: ...0B 11 5 9 8 1 8 8 9 5 B 7B6 1625 8 1 7 1 1 8 32 5 29 5 2 3527 725 9 9 0 1 7 5 1 97 97 57 57 1 1 8 5 3 35 17 5 8 7 2 5 211 725 8 5 1 1 8 1 1 0 2 1 1 02725 1 3 1RWH 0RWRU JURXQG RQO DSSOLHV WR WKH LURQ...

Page 24: ...Communication terminal for indoor unit and outdoor unit 15 Live wire terminal 16 Fuse 17 Terminal of live wire used for supplying power for outdoor unit 7 Interface of Motor feedback 8 Left right swi...

Page 25: ...3 Reactor wiring terminal 1 4 Terminal of chassis electric heater 5 6 4 way valve terminal 7 Neutral wire Grounding wire 8 Communication wire 9 Live wire 10 Terminal of electronic expansion valve 11...

Page 26: ...sensor 5 Interface of electronic expansion valve 6 Interface of system low pressure protection 7 Interface of fan 8 4 way valve interface 9 2 way valve interface 10 11 Interface of electric heating fo...

Page 27: ...sor overload protection interface Interface of temperature sensor 4 Interface of electronic expansion valve 5 Interface of fan 6 4 way valve interface 7 Interface of electric heating for compressor 9...

Page 28: ...door ambient temp Sleep mode Clock Heat mode Fan mode Dry mode Cool mode Auto mode Operation mode I feel X fan mode health function Note After putting through the power the air conditioner will give o...

Page 29: ...n Press this button to set up down swing angle which circularly changes as below This remote controller is universal If any command or is sent out the unit will carry out the command as indicates the...

Page 30: ...turn on the display s light and press this button again to turn off the display s light If the light is turned on is displayed If the light is turned off disappears 16 X FAN Button Pressing X FAN but...

Page 31: ...1 5V dry batteries and make sure the position of polar and polar are correct 3 Reinstall the cover of battery box Replacement of Batteries in Remote Controller battery Cover of battery box remove rein...

Page 32: ...re is the set value under each condition Ambient temperature is Tamb Tcompensation for heat pump unit and Tamb for cooling only unit 4 If theres I feel function Tcompensation is 0 Others are same as a...

Page 33: ...rol code 01 current set temperature will be displayed 2 Only when remote control signal is switched to indoor ambient temperature display status corresponding remote control code 10 from other display...

Page 34: ...l ventilated Tips The automatic cleaning function can only be started under normal environmental conditions If the indoor environment is easy to dust it is recommended to clean it once a month If the...

Page 35: ...the compressor is shut down and Tsetup Tindoor ambient temperature Tcooling indoor ambient temperature compensation 32 9 F start up the machine for cooling the cooling operation will start 2 During o...

Page 36: ...ed on 2 Defrosting a Defrosting starts the compressor is shut down and restarts it after 55 second delay b Defrosting ends the compressor stops then starts it after 55 second delay 2 Outer Fans Contro...

Page 37: ...it should not be started and should be stopped to treat according to the overload protection Clear the trouble at the mode of power turn off heating and the protection times are not counted 2 Frequen...

Page 38: ...ature at normal speed during discharging you should limit the frequency raising of compressor 3 Reducing frequency at normal speed and stopping machine If Tfrequency reducing temperature at normal spe...

Page 39: ...e compressor frequency by reducing 30Hz 90s till the lower limit After it was running 90s at the lower limit if Tfrequency reducing temperature at normal speed of module T Module you should stop the m...

Page 40: ...regarded as four way valve reversion abnormity And then it can run if stop the reversion abnormity protection for four way valve 3 min and if it still cant run when the reversion abnormity protection...

Page 41: ...eration 3 When 32 F Toutdoor amb 35 6 F the electric heating of chassis will keep original status 7 Electric Heating Function of Compressor 1 When Toutdoor amb 23 F compressor stops operation while th...

Page 42: ...ctive accessories such as protective boards cable cross loop and wire clip 7 The live wire neutral wire and grounding wire of power supply must be corresponding to the live wire neutral wire and groun...

Page 43: ...sure rise or compressor rupture resulting in injury 4 During refrigerant recovery make sure that liquid valve and gas valve are fully closed and power is disconnected before detaching the connection p...

Page 44: ...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...

Page 45: ...8 inch At least 5 7 8 inch Space to the wall S p a c e t o t h e o b s t r u c t i o n r o o l f e h t o t e c a p S A t l e a s t 1 1 8 i n c h Space to the obstructio At least 78 5 8 inch Space to...

Page 46: ...ang the indoor 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 Fini...

Page 47: ...able to withstand the weight of indoor unit and wont increase noise and vibration 6 The appliance must be installed 72inch above floor 7 Dont install the indoor unit right above the electric appliance...

Page 48: ...pulling the frame If the plastic expansion particle is loose please drill another fixing hole nearby 3 Install Wall mounting Frame 1 Choose the position of piping hole according to the direction of ou...

Page 49: ...1 Bind up the connection pipe power cord and drain hose with the band As show in Fig 14 2 Reserve a certain length of drain hose and power cord for installation when binding them When binding to a ce...

Page 50: ...of outdoor unit on the selected location with expansion screws 5 Connect Outdoor Electric Wire 1 Let the connection wire sleeve go through the two holes of baffle tighten the connection joint of slee...

Page 51: ...r press ON OFF button on the remote controller to start operation Press MODE button to select AUTO COOL DRY FAN and HEAT to check whether the operation is normal or not If the ambient temperature is l...

Page 52: ...rotection E5 During cooling and drying operation compressor and outdoor fan stop while indoor fan operates During heating operation all loads stop 1 Supply voltage is unstable 2 Supply voltage is too...

Page 53: ...circuited F3 During cooling and drying operating compressor stops while indoor fan operates During heating operation the complete unit will stop operation Outdoor temperature sensor hasnt been connect...

Page 54: ...oltage is higher than 265VAC turn on the unit after the supply voltage is increased to the normal range 2 If the AC input is normal measure the voltage of electrolytic capacitor C on control panel AP1...

Page 55: ...nd drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop Replace outdoor control panel AP1 30 Module high temperature protection P8 D...

Page 56: ...esynchro nizing of compressor H7 During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation Refer to the malf...

Page 57: ...will operate During heating operating the complete unit will stop operation Theres circuit malfunction on outdoor units control panel AP1 please replace the outdoor units control panel AP1 47 The four...

Page 58: ...r fan operates Heat compressor outdoor fan and indoor fan stop operation 1 Outdoor ambient temperature exceeds the operation range of unit eg less than 20oC or more than 60oC for cooling more than 30o...

Page 59: ...inboard broken 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 Y...

Page 60: ...e 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...

Page 61: ...iring terminal of indoor fan It s the malfunction of main board Replace a new main board that is of the same model It s the malfunction of main board Replace a new main board that is of the same model...

Page 62: ...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...

Page 63: ...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...

Page 64: ...anual Start Is malfunction eliminated The end check if the connection wire are correctly connected Replace the detecting plate with the same model Replace the mainboard with the same model Yes Yes No...

Page 65: ...in the system System is blocked inside dirt block ice block oil block Y valve no fully open Compressor doesn t work normally Strange noise or leakage occurs Make compressor run normally Casing is too...

Page 66: ...board matches with display board Main board of IDU matches with that of ODU Communication cord is damaged Replace IDU s main board Malfunction eliminated End Connect the line according to wiring diag...

Page 67: ...the compressor Replace the mainboard with the same model End Is the supply voltage too low with overload Is the indoor outdoor heat exchanger dirty or are the air inlet and outlet blocked The fan is a...

Page 68: ...ith the voltage testing circuit on control panel AP1 Replace the control panel AP1 Measure the AC voltage between terminalL andN on wiring board XT power supply Voltage within 210VAC 250VAC Shut down...

Page 69: ...resume to the range of 210VAC 250VAC Correctly connect the wires of compressor according to the electric wiring diagram and then turn on the unit Check the connection between the control board and th...

Page 70: ...gh temperature protection Is outdoor ambient temperature higher than 53 20 minutes after the complete unit is powered off Is heat dissipation of the indoor unit and outdoor unit abnormal Normal protec...

Page 71: ...for compressor stopping enough Fault diagnosis process Y N Y N N Y Y N Power on the unit Is stop time of the compressor longer than 3 minutes Restart it up after 3 minutes Does startup fail Are the w...

Page 72: ...e compressor connected correctly Is connection sequence right Is the connection made in clockwise direction Connect the wires correctly Replace the control panel AP1 If the fault is eliminated Replace...

Page 73: ...20 minutes after the complete unit is powered off Is the terminal FA for the electronic expansion valve connected correctly Connect the wires correctly Resistances between the first four pins close t...

Page 74: ...pment operate normally before the failure occurs The AP1 voltage detection circuit is at fault Check wiring inside of the indoor and outdoor units Are wires broken Check the communication circuit of t...

Page 75: ...valve damaged If the refrigerant is leaked The compressor overload protection terminal is not connected well with the mainboard If the overload protector is damaged Heat exchange of unit is not good...

Page 76: ...nual Compressor overload protection terminal is not connected well with the mainboard reconnect them correctly Heat exchange of unit is not good heat exchanger is dirty and unit radiating environment...

Page 77: ...hod for details Malfunction of compressor Compressor cant operate Refer to point 5 of maintenance method for details 9 3 Troubleshooting for Normal Malfunction 1 Air Conditioner Cant be Started Up 2 P...

Page 78: ...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 Cant Operate Possible causes Discriminating m...

Page 79: ...stallation and Maintenance Service Manual 10 Exploded View and Parts List 10 1 Indoor Unit The component picture is only for reference please refer to the actual product LI012CI 160P432 1 LI012HI 160P...

Page 80: ...13 Cold Plasma Generator 14 Evaporator Assy 011001060162 011001060162 1 15 Wall Mounting Frame 01252484 01252484 1 16 Cross Flow Fan 10352056 10352056 1 17 Fan Motor 1501214607 1501214607 1 18 Connect...

Page 81: ...vice Manual LI018CI 160P432 1 LI018HI 160P432 1 36 35 1 10 2 3 4 5 6 7 8 9 11 12 13 14 15 16 18 19 20 21 25 26 27 28 29 32 31 24 33 34 37 38 22 23 17 30 10 The component picture is only for reference...

Page 82: ...aporator Support 24212177 24212177 1 16 Evaporator Assy 011001000207 011001000207 1 17 Cross Flow Fan 10352060 10352060 1 18 Fan Motor 1501214503 1501214503 1 19 Motor Press Plate 26112511 26112511 1...

Page 83: ...rvice Manual LI024CI 160P432 1 LI024HI 160P432 1 36 35 37 38 1 8 2 3 4 6 7 9 10 12 13 14 15 17 18 19 20 21 22 23 24 26 27 28 29 30 31 33 5 25 11 16 34 8 32 The component picture is only for reference...

Page 84: ...1100100007306 01100100007306 1 16 Cold Plasma Generator 17 Wall Mounting Frame 01252229 01252229 1 18 Motor Press Plate 26112515 26112515 1 19 Fan Motor 1501214501 1501214501 1 20 Connecting pipe clam...

Page 85: ...82 Installation and Maintenance Service Manual LI012HO 160P432 1 The component picture is only for reference please refer to the actual product 10 2 Outdoor Unit...

Page 86: ...lve Support Block 26113017 2 13 Cover of Pass Wire 01413069 1 14 Right Side Plate Assy 0130307003 1 15 Cable Cross Plate 2 02123014P 1 16 Magnet Coil 4300040050 1 17 Capillary Sub assy 030006060709 1...

Page 87: ...84 Installation and Maintenance Service Manual The component picture is only for reference please refer to the actual product LI012CO 160P432 1...

Page 88: ...ck 26113017 2 11 Valve 07133082 1 12 Cable Cross Plate 2 02123014P 1 13 Right Side Plate Assy 00013006002002 1 14 Cover of Pass Wire 01413069 1 15 Inhalation Tube Sub assy 07133474 1 16 Discharge Tube...

Page 89: ...llation and Maintenance Service Manual 2 1 3 4 5 14 15 16 17 18 19 6 7 8 9 10 11 12 13 20 21 22 24 25 23 27 26 The component picture is only for reference please refer to the actual product LI018CO 16...

Page 90: ...8061392 1 9 Valve Support Assy 01713115P 1 10 Cut off Valve Assy 1 2 07133774 1 11 Cut off Valve Sub Assy 07335708 1 12 Right Side Plate 01303244P 1 13 Valve Cover 22243005 1 14 Cable Cross Plate Sub...

Page 91: ...88 Installation and Maintenance Service Manual LI018HO 160P432 1 LI024HO 160P432 1 The component picture is only for reference please refer to the actual product 19 29...

Page 92: ...05 1 12 Motor Support 01703245 01703245 1 13 Clapboard Sub Assy 017021000063 017021000063 1 14 Condenser Assy 01100206086201 011002061040 1 15 4 Way Valve Assy 030152060381 030152060463 1 16 Rear Gril...

Page 93: ...tion and Maintenance Service Manual LI024CO 160P432 1 The component picture is only for reference please refer to the actual product 1 2 3 9 10 11 12 13 14 15 16 17 18 20 21 22 23 24 25 26 28 29 4 5 6...

Page 94: ...11 Coping 01253105 1 12 Motor Support Sub Assy 01701200009 1 13 Clapboard Sub Assy 017021000063 1 14 Condenser Assy 011002061015 1 15 Discharge Tube Assy 035008061748 1 16 Rear Grill 016001000023 1 17...

Page 95: ...orizontal louver Location of step motor Procedure Step 1 Remove filter assembly 2 Remove horizontal louver Front panel Front case Right filter Groove Left filter Open the front panel Push the left fil...

Page 96: ...louver and bottom case to remove vertical louver Loosen the connection clasps between front case sub assy and bottom case Lift up the front case sub assy and take it out Electric box cover2 Detecting...

Page 97: ...ounding screw Remove the wiring terminals of motor and stepping motor Remove the electric box assy Twist off the screws that are locking each lead wire and rotate the electric box assy Twist off the s...

Page 98: ...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...

Page 99: ...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...

Page 100: ...ake them break away from the groove on the front case Then remove the left and right filters one by one Left filter Groove Right filter Front case Front panel C6 display Display C6 panel display Screw...

Page 101: ...y and take S wing motor Screw off the screws that are locking the swing motor and take the motor off it out 4 Remove electric box cover 2 and detecting plate WIFI Remove the screws on the electric box...

Page 102: ...the indoor tube temperature sensor Screw off one grounding screw Remove the wiring terminals of motor and stepping motor Remove the electric box assy Screw off the screws that are locking each lead w...

Page 103: ...lation and Maintenance Service Manual R ear case assy 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 rear case assy Gro...

Page 104: ...101 Installation and Maintenance Service Manual...

Page 105: ...s plate 2 and valve cover 2 Remove top cover Before disassamble Remove 3 connection screw fixing cable cross plate 2 and then remove the Cable cross plate 2 Remove 1 connection screw fixing valve cove...

Page 106: ...Then remove the front grille Remove connection screws connecting the front panel with the chassis and the motor support and then remove the front panel Remove the nut fixing the blade and then remove...

Page 107: ...4 weld spots connecting the 4 way Valve Assy to take it out Note Refrigerant should be discharged firstly Welding process should be as quickly as possible and keep wrapping cotton wet all the time Be...

Page 108: ...motor Remove the 2 tapping screws fixing the motor support Lift motor support to re move it 9 Remove motor and motor support Motor Motor support 10 Remove clapboard sub assy Loosen the screws of the C...

Page 109: ...alve and air return pipe and remove the gas valve Note it is necessary to warp the gas valve when unsoldering the welding spot Remove the 2 screws fixing liquid valve Unsolder the weld ing spot connec...

Page 110: ...ng the grille and the panel and then remove the grille grille Top panel 1 Remove cable cross plate 2 and valve cover and top panel Before disassamble Remove 3 connection screw fixing cable cross plate...

Page 111: ...rvice Manual Procedure Step E Screw Screw Screw and then remove the right side plate Remove right side plate and rear grill Screw Screw Cabinet Right side plate Rear grill remove the cabinet Remove th...

Page 112: ...Remove lef side plate Procedure Step Nut 6 Remove electric box assy assy pull out each wiring terminal lift the electric box assy upwards to remove it Note When pulling out the wiring terminal pay att...

Page 113: ...support 8 Remove motor support Spot weld 4 way valve assy 9 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 Note When u...

Page 114: ...Protect the ports of discharge pipe and suction pipe to avoid foreign objects to enter it 10 Remove compressor Procedure Step 11 Remove clapboard Screw Clapboard then remove the clapboard Remove Valv...

Page 115: ...112 Installation and Maintenance Service Manual LI018HO 160P432 1 LI024CO 160P432 1 LI024HO 160P432 1 Note Take heat pump for example...

Page 116: ...113 Installation and Maintenance Service Manual...

Page 117: ...114 Installation and Maintenance Service Manual...

Page 118: ...115 Installation and Maintenance Service Manual...

Page 119: ...116 Installation and Maintenance Service Manual...

Page 120: ...117 Installation and Maintenance Service Manual...

Page 121: ...ahrenheit degree and Celsius degree Tf Tcx1 8 32 Ambient temperature Fahrenheit display temperature Fahrenheit Celsius Fahrenheit display temperature Fahrenheit Celsius Fahrenheit display temperature...

Page 122: ...teps 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 prevent...

Page 123: ...358 233 6 0 717 24 8 60 23 95 9 779 165 2 2 28 235 4 0 697 26 6 57 18 96 8 9 382 167 2 206 237 2 0 678 28 4 54 31 98 6 9 003 168 8 2 133 239 0 66 30 2 51 59 100 4 8 642 170 6 2 064 240 8 0 642 32 49 0...

Page 124: ...95 13 04 165 2 3 04 235 4 0 93 26 6 76 24 96 8 12 51 167 2 94 237 2 0 904 28 4 72 41 98 6 12 168 8 2 844 239 0 88 30 2 68 79 100 4 11 52 170 6 2 752 240 8 0 856 32 65 37 102 2 11 06 172 4 2 663 242 6...

Page 125: ...342 8 77 49 19 147 2 10 54 217 4 3 04 8 6 323 9 78 8 47 08 149 10 18 219 2 2 955 10 4 306 2 80 6 45 07 150 8 9 827 221 2 872 12 2 289 6 82 4 43 16 152 6 9 489 222 8 2 792 14 274 84 2 41 34 154 4 9 165...

Page 126: ...Visit us at 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 tradema...

Reviews:

No comments