Sinclair ASH-18AIM2 PT Service Manual Download Page 1

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SERVICE MANUAL

ASH-

AIM

PT, ASH-

AIM

MATRIX SERIE

Summary of Contents for ASH-18AIM2 PT

Page 1: ...SERVICE MANUAL ASH 18AIM2 PT ASH 24AIM2 PT MATRIX SERIE ...

Page 2: ......

Page 3: ...m 8 5 Electrical Part 9 5 1 Wiring Diagram 9 5 2 PCB Printed Diagram 11 6 Function and Control 13 6 1 Remote Controller Introduction 13 6 2 Brief Description of Modes and Functions 17 Part Ⅱ Installation and Maintenance 26 7 Notes for Installation and Maintenance 26 8 Installation 28 8 1 Installation Dimension Diagram 28 8 2 Installation Parts checking 30 8 3 Selection of Installation Location 30 ...

Page 4: ...oded View and Parts List 56 10 1 Indoor Unit 56 10 2 Outdoor Unit 60 11 Removal Procedure 64 11 1 Removal Procedure of Indoor Unit 64 11 2 Removal Procedure of Outdoor Unit 69 Appendix 80 Appendix 1 Reference Sheet of Celsius and Fahrenheit 80 Appendix 2 Configuration of Connection Pipe 80 Appendix 3 Pipe Expanding Method 81 Appendix 4 List of Resistance for Temperature Sensor 82 ...

Page 5: ...1 Technical Information Service Manual 1 Summary Part Ⅰ Technical Information Indoor Unit ASH 18AIM2 PT ASH 24AIM2 PT Outdoor Unit ASH 18AIM2 PT ASH 24AIM2 PT Remote Controller YAA1FB F C H O U R ONOFF ...

Page 6: ... Model of indoor unit ASH 18AIM2 PT ASH 24AIM2 PT Indoor Unit Product Code CB304N02500_L31222 CB304N02800_L31222 Fan Type Cross flow Cross flow Diameter Length DXL mm Φ98X710 Φ100X765 Fan Motor Cooling Speed SH H M L SL r min 1350 1200 1000 800 1350 1150 950 850 Fan Motor Heating Speed SH H M L SL r min 1420 1250 1100 950 1400 1200 1000 900 Output of Fan Motor W 20 35 Fan Motor RLA A 0 31 0 31 Fan...

Page 7: ...4 Coil Length LXDXW mm 851X38 1X660 984X38 1X748 Fan Motor Speed rpm 750 800 Output of Fan Motor W 60 90 Fan Motor RLA A Fan Motor Capacitor μF Air Flow Volume of Outdoor Unit m3 h 3200 4000 Fan Type Axial flow Axial flow Fan Diameter mm Φ520 Φ552 Defrosting Method Automatic Defrosting Automatic Defrosting Climate Type T1 T1 Isolation I I Moisture Protection IP24 IP24 Permissible Excessive Operati...

Page 8: ...pe length 5m Conditions Indoor DB20 C WB15 C Outdoor DB7 C WB6 C Indoor air flow High Pipe length 5m Cooling Heating Cooling Heating 32 33 34 35 36 37 38 39 43 15 10 5 40 41 42 100 105 95 90 85 80 75 70 65 60 55 50 110 100 90 80 70 60 50 40 0 5 7 10 Conditions Indoor DB27 C WB19 C Indoor air flow Super High Pipe length 5m Conditions Indoor DB20 C WB15 C Indoor air flow Super High Pipe length 5m Ou...

Page 9: ...d outdoor unit Inlet and outlet pipe temperature of heat exchanger Fan speed of indoor unit Fan speed of outdoor unit Compressor frequency Hz Indoor Outdoor P MPa T1 o C T2 o C 20 15 7 6 ASH 18AIM2 PT 2 2 to 2 4 70 to 40 1 to 5 Super High High 70 ASH 24AIM2 PT 2 5 to 2 7 70 to 40 1 to 5 Super High High 75 Instruction T1 Inlet and outlet pipe temperature of evaporator T2 Inlet and outlet pipe tempe...

Page 10: ...Service Manual 3 Outline Dimension Diagram 3 1 Indoor Unit Unit mm Models W H D ASH 18AIM2 PT 945 298 211 ASH 24AIM2 PT 1018 315 230 ASH 18AIM2 PT ASH 124AIM2 PT W 694 685 189 144 57 38 116 45 45 60 95 Φ55 Φ55 Φ70 Φ70 194 D H ...

Page 11: ...7 Technical Information Service Manual 427 1000 920 610 370 790 395 3 2 Outdoor Unit Unit mm Unit mm 340 963 700 396 890 560 364 ASH 18AIM2 PT ASH 24AIM2 PT ...

Page 12: ...arge Suction Heat exchanger evaporator Heat exchanger condenser Valve Valve Liquid pipe side Gas pipe side Strainer Capillary Strainer Accumlator Compressor 4 Refrigerant System Diagram Connection pipe specification Liquid pipe 1 4 6mm Gas pipe 1 2 12mm ASH 18AIM2 PT Gas pipe 5 8 16mm ASH 24AIM2 PT ...

Page 13: ...Black VT Violet OG Orange Note Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model ASH 18AIM2 PT SENSOR SENSOR L AC L BK PE ROOM TUBE M2 SWING UD ROOM TEMP RT2 AP2 BN PG YEGN M1 BU FAN MOTOR OUTDOOR UNIT 2 3 XT N 1 TUBE TEMP RT1 SWING MOTOR COM OUT N PGF CAP JUMP DISP2 DISP1 AP1 RECEIVER AND DISPLAY BOARD EVAPORATOR TERMINAL BLOCK L L SWING BU BK BN YEG...

Page 14: ...ase don t touch any terminal when the voltage of terminal P DC and N DC at AP1 is higher than 30V to prevent the risk of electric shock POWER θ θ θ COMP L1 W V U PRINTED CIRCUIT BOARD L1 PE YEGN FAN MOTOR 4WAY OFAN VT VT VALVE 4YV 4 WAY M1 PE MAGNETIC PE TERMINAL BLOCK YEGN BU BN BU BN BK RING L1 INDOOR UNIT XT1 BU BK BN 3 2 N 1 L N PE BU YEGN L N PE YEGN PE COM_INNER N1 AC_L L3 L3 RING MAGNETIC L...

Page 15: ...wire 5 Interface of neutral wire for health function 6 Control interface of PG motor 7 Interface of live wire for health function 8 Interface of indoor unit and outdoor unit communication 9 Auto button 10 Up down swing 11 Feedback interface of indoor fan 12 Jump 13 Interface of display 14 Ambient temperature sensor interface 15 Indoor tube temperature sensor interface 1 2 3 4 5 6 7 8 9 10 11 12 13...

Page 16: ...temperature sensor 3 Terminal of electronic expansion valve 4 Terminal of outdoor fan 5 Terminal of 4 way valve 6 Terminal of compressorelectric heating 7 Terminal of chassis electric heating 8 Terminal of indoor unit and outdoor unit communication 9 Power supply live wire 10 Earthing wire 11 Power supply neutral wire 1 2 3 4 5 6 7 8 9 10 11 ...

Page 17: ...tton LIGHT button 16 X FAN button SLEEP button TEMP button button button F C H O U R ONOFF 2 3 4 5 6 7 8 9 10 11 12 13 14 16 15 Send signal Turbo mode 8 heating function Set temperature Set time TIMER ON TIMER OFF Child lock Up down swing Set fan speed ventilation operation Light Temp display type Set temp Outdoor ambient temp Indoor ambient temp Sleep mode Clock Heat mode Fan mode Dry mode Cool m...

Page 18: ...14 Technical Information Service Manual no display ...

Page 19: ...15 Technical Information Service Manual ...

Page 20: ...16 Technical Information Service Manual battery Cover of battery box remove reinstall ...

Page 21: ...frost ing signal from outdoorunit displayerwill Heating indicator on indoor display is off for 0 5s and then on for 10s during blinking 10slater indoor fan motor will stop to run 5 Anti coold wind function 6 Blow heat air function a If heating temp meets the compressor stop running condition compressors outdoor fan motor will stop to run the upper and lower guide louver will rotate to horizontal p...

Page 22: ...all be cleared Frequency limitation and reduction states shall be displayed by means of remote calling 2 Failure display control Indicator failure display shall be kept synchronous with Double 8 failure display that is during indicator blinking failure code corresponding to such indicator shall be displayed on Double 8 3 Method of remote calling of failure display Entering the failure remote calli...

Page 23: ... modes 7 Control of indoor fan Indoor fan can be set at four levels super high high middle and low with a remote controller When one level is set the fan will thus operate at such level The fan can also be set at auto state 8 Power failure memory function What will be memorized includes modes up and down wind blow light preset temperature preset wind speed general timing no memory for moment timin...

Page 24: ...peration according to the actual defrosting result and the complete unit will resume normal heating operation Outdoor Units 1 Input Parameter Compensation and Calibration 1 Check the ambient temperature compensation function Indoor ambient temperature compensation function a In cooling mode the indoor ambient temperature participating in computing control Tindoor ambient temperature Tcooling indoo...

Page 25: ... defrosting operation will start Conditions of finishing defrosting The defrosting operation can exit when any of the conditions below is satisfied Toutdoor pipe temperature Toutdoor ambient temperature Ttemperature 1 of finishing defrosting The continuous running time of defrosting reaches tmax defrosting time 4 Control Logic 1 Compressor Control Start the compressor after starting cooling heatin...

Page 26: ...perature you should adjust the compressor frequency by reducing 8Hz 90s till the lower limit 4 Reducing frequency at high speed If Tfrozen preventing power turn off temperature T inner pipe Tfrozen preventing high speed frequency reducing temperature you should adjust the compressor frequency by reducing 30Hz 90s till the lower limit 5 Power turn off If the Tinner pipe Tfrozen preventing power tur...

Page 27: ... frequency reducing temperature at normal speed T inner pipe then overload protects machine stopping 3 Reducing frequency at high speed and power turn off If Theating overload frequency reducing temperature at high speed Tinner pipe Theating overload power turn off temperature you should adjust the compressor frequency by reducing 30Hz 90s till the lower limit After it was running 90s at the lower...

Page 28: ...cing frequency 3 Power turn off If I Phase Current I Power Turn Off Phase Current the compressor phase current shall stop working for overcurrent protection if I Phase Current I Frequency Reducing Phase Current and the compressor have stopped working for 3 min the machine shall be allowed to operate 4 If the overcurrent protection of compressor phase current continuously occurs for six times it sh...

Page 29: ...ou should not detect the failure of outdoor tube sensor within 10 minutes heating operation compressor except the defrosting and you could detect it at other time 3 Outdoor Exhaust Sensor a The compressor only detect the sensor failure after it start up 3 min in normal mode b It should detect the exhaust sensor failure immediately in the testing mode 4 Module Temperature Sensor a Short Circuit Det...

Page 30: ...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 and grounding wire of power supply must be corresponding to the live wire neutral wire and grounding wire of the air conditioner 8 The power cord and power connection wires can t be pressed by hard obj...

Page 31: ...ing 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 Torque wrench open end wrench inner hexagon spanner 9 Pressure meter 12 Soldering appliance refrigerant container ...

Page 32: ...least 15cm At least 15cm At least 250cm 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 Space to the obstruction Drainage pipe Space to the wall Space to the obstruction Space to the obstructio Space to the obstruction A t l e a s t 3 0 0 c m At least 50cm At least 200cm At least 30cm At least 30cm At least 50cm ...

Page 33: ...oor 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 installation Note this flow is only for reference please find the more detailed installation steps in this section Select outdoor unit installation location Install the support of outdoor unit select it accor...

Page 34: ...ding with specialized grounding device by a professional Please make sure it is always grounded effectively otherwise it may cause electric shock 2 The yellow green wire in air conditioner is grounding wire which can t be used for other purposes 3 The grounding resistance should comply with national electric safety regulations 4 The appliance must be positioned so that the plug is accessible 5 An ...

Page 35: ... of outlet pipe The position of piping hole should be a little lower than the wall mounted frame As show in Fig 1 5 Connect the Pipe of Indoor Unit 1 Aim the pipe joint at the corresponding bellmouth As show in Fig 5 2 Pretightening the union nut with hand 3 Adjust the torque force by referring to the following sheet Place the open end wrench on the pipe joint and place the torque wrench on the un...

Page 36: ...cord for installation when binding them When binding to a certain degree separate the indoor power and then separate the drain hose As show in Fig 15 3 Bind them evenly 4 The liquid pipe and gas pipe should be bound separately at the end 9 Hang the Indoor Unit 1 Put the bound pipes in the wall pipe and then make them pass through the wall hole 2 Hang the indoor unit on the wall mounting frame 3 St...

Page 37: ... installation location according to the house structure 2 Fix the support of outdoor unit on the selected location with expansion screws 5 Connect Outdoor Electric Wire 1 Remove the wire clip connect the power connection wire and power cord to the wiring terminal according to the color fix them with screws As show in Fig 23 6 Neaten the Pipes 1 The pipes should be placed along the wall bent reason...

Page 38: ...1 Remove the valve caps on the liquid valve and gas valve and the nut of refrigerant charging vent 2 Connect the charging hose of piezometer to the refrigerant charging vent of gas valve and then connect the other charging hose to the vacuum pump 3 Open the piezometer completely and operate for 10 15min to check if the pressure of piezometer remains in 0 1MPa 4 Close the vacuum pump and maintain t...

Page 39: ...rature sensor is open short circuited F1 Indoor evaporator temperature sensor is open short circuited F2 Module temperature sensor is open short circuited P7 Outdoor ambient temperature sensor is open short circuited F3 Outdoor condenser tube temperature sensor is open short circuited F4 Outdoor discharge temperature sensor is open short circuited F5 Communication malfunction between indoor and ou...

Page 40: ...d then peformedischarging NOTE A large capacity electrolytic capacitor is used in the outdoor unit controller inverter Therefore if the power supply is turned off charge charging voltage DC280V to 380V remains and disc harging takes a lot of time After turning off the power source if touching the charging section before discharging an electrical shock may be caused Discharge the electrol ytic capa...

Page 41: ...oard 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 Yes Yes Yes Yes No No No No No No Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Replace it with a temperature sensor with the same model Make the parts upright Is there sho...

Page 42: ...the 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 Tighten the screw reassemble the blade motor and shaft bearing rubber base sub assy to make sure there is no foreign object between them Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No No No No No ...

Page 43: ...f 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 Appearance of the jumper cap Assemble the jumper cap with the same model Insert the jumper cap tightly Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Replace the mainbo...

Page 44: ...charges 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 displayed due to power off on while the capacitor discharges slowly U8 is still displayed The zero cross detection circuit of the mainboard is defined abnormal Replace the mainboard with the same mo...

Page 45: ...e wiring diagram Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Main board matches with display board Main board of IDU matches with that of ODU Match correctly according to product specification Connection of communication wire is damaged or not Replace the connection wire Replace the main board of IDU Replace the main board of ODU End No N...

Page 46: ...urs after de energizing and turning on the unit Whether stop time for compressor is more than 3min No No No No No No No Yes Yes Yes Yes Yes No Yes Yes Yes Yes Whether valve of outdoor unit is opened Whether wire connection for compressor is correct Open the valve Is malfunction eliminated Connect wire correctly Is malfunction eliminated Replace electronic expansion valve Is malfunction eliminated ...

Page 47: ...such as clean heat exchanger improve ventilation etc Turn on the unit again after the power voltage is resumed Charge refrigerant according to service manual Whether the outdoor fan can operate normally Whether the radiation for the unit is in good condition Whether the input voltage is normal Whether refrigerant is superfluous Replace main board of outdoor unit Is malfunction eliminated Replace c...

Page 48: ...ged Check flow chart Start the troubleshooting for temperature sensor Check the connection between temperature sensor and wiring terminal is loose or in poor connection Check whether the temperature sensor is normal according to the Resistance Value Table for Temperature Sensor Insert the temperature sensor well Is malfunction eliminated Is malfunction eliminated Replace the temperature sensor Rep...

Page 49: ...ient temperature Whether the resistance 1KΩ Whether wire connection wire electronic expansion valve is in good condition Check the coil of electronic expansion valve If it s damaged please replace it Is malfunction eliminated If the refrigerant is leaking please add refrigerant according to Service Manual Is malfunction eliminated Replace main board of outdoor unit End Yes Yes Yes Yes No No No No ...

Page 50: ...1 min There is malfunction for the detection circuit on main board of outdoor unit Check the input power and resume the power supply normal Is malfunction eliinated Measure the voltage at both ends of big electrolytic capacitor with the DC notch of universal meter Is the voltage more than 100V Check whether the input voltage is within the normal range Replace main board of outdoor unit End No No N...

Page 51: ...rminal is connected well Whether the fan is damaged Replace fan capacitor unavailable for DC fan Replace outdoor fan Whether outdoor ambient temperature is more than 53o C Whether radiation inside or outdoor the unit is good Whether outdoor fan operates normally Replace main board of outdoor unit End No Yes Yes Yes Yes No No No Remark When overload protection occurs under cooling mode it s because...

Page 52: ...or wires are connected correctly Whether there re above circumstances Connect compressor wires according to correct wiring method Modify it according to Service Manual and then energize and turn on the unit Measure the resistance beween two phases of three phases of compressor Is resistance value normal Measure the resistance between three phase of compressor and copper pipe Is resistance value mo...

Page 53: ...lfunction of PFC Protection HC Main check point Whether power supply is normal Check flow chart Start Check whether power supply is normal Is power abnormal Replace main board of outdoor unit End Turn on the unit again after the power is resumed Yes No ...

Page 54: ...in board of outdoor unit is damaged Check flow chart Communication malfunction De energize the unit and then check whether connection wires between indoor unit and outdoor unit and wiring inside the electric box are correct Are wires are connected correctly Replace main board of indoor unit Is malfunction eliminated End Replace main board of outdoor unit Connect wire correctly according to circuit...

Page 55: ... time for compressor is more than 3min Whether compressor wires are connected correctly The stop time for unit is not enough high pressure and low pressure of system are unbalanced please wait for 3min and then restart up the unit Whether the refrigerant volume is superfluous Please charge the refrigerant according to Service Manual Is malfunction eliminated Replace main board of outdoor unit Is m...

Page 56: ...e 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 abnormal Fan speed is too low or fan doesn t rotate Measure the current of live wire on the main board with a clamp ampere meter Is the current higher than the value of the overcurrent protection Is ...

Page 57: ...etection circuit malfunctions of phase current of compressor U1 Hardware of main board is damaged Please replace main board 4 DC busbar voltage is too high PH Input voltage is too high or unstable Hardware of main board is damaged 5 DC busbar voltage is too low PL Input voltage is too low or unstable Hardware of main board is damaged 6 Malfunction of ODU DC fan L3 The wire terminal of outdoor fan ...

Page 58: ...hod for details Malfunction of compressor Compressor can t operate Refer to point 5 of maintenance method for details 9 3 Troubleshooting for Normal Malfunction 1 Air Conditioner Can t be Started Up 2 Poor Cooling Heating for Air Conditioner 3 Horizontal Louver Can t Swing Possible Causes Discriminating Method Air conditioner Status Troubleshooting No power supply or poor connection for power plug...

Page 59: ... re parts touching together inside the outdoor unit There s abnormal sound fro outdoor unit Remove foreign objects Adjust all parts position of outdoor unit tighten screws and stick damping plaster between connected parts Short circuit inside the magnetic coil During heating the way valve has abnormal electromagnetic sound Replace magnetic coil Abnormal shake of compressor Outdoor unit gives out a...

Page 60: ...56 Installation and Maintenance Service Manual 10 Exploded View and Parts List 10 1 Indoor Unit F C H O U R ONOFF ASH 18AIM2 PT ...

Page 61: ...ing 7651205102 1 15 Ring of Bearing 26152022 1 16 Evaporator Assy 01002575 1 17 Evaporator Support 24212133 1 18 Connecting pipe clamp 2611216402 1 19 Motor Press Plate 26112494 1 20 Fan Motor 15012146 1 21 Wall Mounting Frame 01252218 1 22 Drainage hose 05230014 1 23 Step Motor 15012086 1 24 Crank 10582070 1 25 Air Louver 2 1051211702 1 26 Axile Bush 10542036 1 27 Electric Box Cover2 2012214204 1...

Page 62: ...58 Installation and Maintenance Service Manual ASH 24AIM2 PT 37 38 34 33 35 36 1 2 3 4 6 7 8 9 11 12 13 14 15 16 17 18 19 20 21 22 23 25 26 27 28 29 30 32 5 24 10 31 F C H O U R ONOFF ...

Page 63: ...4212139 1 14 Evaporator Assy 01100100032 1 15 Wall Mounting Frame 01252032 1 16 Motor Press Plate 26112330 1 17 Fan Motor 15012098 1 18 Pipe Clamp 2611218801 1 19 Drainage hose 0523001405 1 20 Step Motor 1521300101 1 21 Crank 10582070 1 22 Display Board 30565139 1 23 Guide Louver 1051220801 1 24 Axile Bush 10542036 2 25 Electric Box 2011210801 1 26 Terminal Board 42011233 1 27 Electric Box Cover2 ...

Page 64: ...60 Installation and Maintenance Service Manual 10 2 Outdoor Unit ASH 18AIM2 PT 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 29 30 28 31 32 33 34 35 ...

Page 65: ...07133204 1 12 Valve support assy 01715010P 1 13 Right Side Plate 0130509402P 1 14 Valve cover 22245002 1 15 Handle 26233053 1 16 Wiring Clamp 26115004 1 17 Rear Grill 01473043 1 18 Condenser Assy 01163865 1 19 Reactor 20 Clapboard Assy 01233153 1 21 Coping 01255005P 1 22 Supporting Board Condenser 01795010 1 23 Motor Support Sub Assy 01705036 1 24 Fan Motor 1501506402 1 25 Axial Flow Fan 10335008 ...

Page 66: ...62 Installation and Maintenance Service Manual ASH 24AIM2 PT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 35 34 36 37 ...

Page 67: ...e Sub Assy 07135072 1 14 Cut off Valve 07133157 1 15 Baffle Valve Support 01365435P 1 16 Right Side Plate 0130504401P 1 17 Valve Cover 22245003 1 18 Big Handle 26235001 1 19 Wiring Clamp 26115004 1 20 Rear Grill 01475013 1 21 Condenser Assy 01163917 1 22 Electrical Heater Chassis 7651000411 1 23 Clapboard Assy 01233164 1 24 Condenser Support Plate 01175092 1 25 Coping 01255006P 1 26 Motor Support ...

Page 68: ...turning off all power supplies and discharge the refrigerant completely before removal Procedure Steps a a b panel clasp left filter and right filer 1 Remove filter Open the panel Loosen the clasp shown in the fig and then pull the left filter and right filer outwards to remove them 2 Remove panel Remove two screws fixing display and then remove it screws display ...

Page 69: ... air outlet 2 The quantity of screws fixing the front case sub assy is different for different models screw screw caps screws front case sub assy 3 Remove horizontal louver Push out the axile bush on horizontal louver Bend the horizontal louver with hand and then separate the horizontal louver from the crankshaft of step motor to remove it location of step motor horizontal louver axile bush panel ...

Page 70: ...otor and wiring terminal of step motor from the mainboard Note 1 Location of tube temperature sensor and tieline on the evaporator is different for different models 2 When pulling out the wiring terminal pay attention to loose the clasp and don t pull it so hard Loosen the connection clasps between vertical louver and bottom case to remove vertical louver vertical louver bottom case clasps clasps ...

Page 71: ...on pipe clamp and then remove the connection pipe clamp Remove 3 screws fixing evaporator assy evaporator c Adjust the position of connection pipe on evaporator slightly and then lift the evaporator upwards to remove it connection pipe Remove the screw fixing electric box assy and then remove the electric box assy electric box screws screw pipe clamp ...

Page 72: ...motor clamp and then remove the motor clamp Remove the screws at the connection place of cross flow blade and motor lift the motor and cross flow blade upwards to remove them c Remove the bearing holder sub assy Remove the screw fixing step motor and then remove the step motor holder sub assy bottom case cross flow motor clamp motor screws screw screws ...

Page 73: ...and valve cover up ward to remove it b a a 1 Remove top panel Remove grille the 3 screws connecting the top panel with the front panel and the right side plate and then remove the top panel 2 Remove grille panel and rear grill Remove the 2 screws connecting the grille and the panel and then remove the grille Steps Procedure handle valve cover top panel ASH 18AIM2 PT ...

Page 74: ...chassis and the motor support and then remove the panel 3 Remove left side plate and right side plate Remove the screws connecting the right side plate with the chassis the valve support and the electric box and then remove the right side plate assy Remove the screws connecting the left side plate and the chassis and then remove the left side plate assy panel rear grill right side plate leftsidepl...

Page 75: ...the wiring terminals and then pull the electric box upwards to remove it Remove the 4 tapping screws fixing the motor disconnect the leading wire insert of the motor and then remove the motor Remove the 2 tapping screws fixing the motor support and then pull the motor support upwards to remove it Remove the nuts fixing the blade and then remove the axial flow blade axial flow blade electric box ...

Page 76: ...dproof sponge carefully soundproof sponge 7 Remove Isolation sheet Remove the 3 screws fixing the isolation sheet and then remove the Isolation sheet Isolation sheet 8 Remov e 4 way valve assy Discharge the refrigerant completely unsolder the pipelines connecting the compressor and the condenser assy and then remove the 4 way valve assy 4 way valve assy ...

Page 77: ...ove the compressor Remove the screws connecting the support condenser and condenser assy and then remove the support condenser 9 Remov e compressor compressor 10 Remove condenser sub assy a support capillary sub assy b Remove the chassis sub assy and condenser sub assy condenser sub assy chassis sub assy ...

Page 78: ...the 3 screws connecting the top panel with the front panel and the right side plate and then remove the top panel 2 Remove grille front side plate and panel Remove Remove the 1 screw connecting the front side plate and the panel and then remove the front side plate the 2 screws connecting the grille and the panel and then remove the grille b Steps Procedure handle valve cover front side plate gril...

Page 79: ...e the panel 3 Remove right side plate and left side plate Remove the screws connecting the right side plate with the chassis the valve support and the electric box and then remove the right side plate assy panel rightsideplate Remove the screws connecting the left side plate and the chassis and then left side plate remove the left side plate assy ...

Page 80: ...ut the wiring terminals and then pull the electric box upwards to remove it Remove the 4 tapping screws fixing the motor disconnect the leading wire insert of the motor and then remove the motor Remove the 2 tapping screws fixing the motor support and then pull the motor support upwards to remove it electric box fan motor axial flow blade Remove the nuts fixing the blade and then remove the axial ...

Page 81: ...e the soundproof sponge carefully 7 Remove Isolation sheet Remove the 3 screws fixing the isolation sheet and then remove the Isolation sheet Isolation sheet Discharge the refrigerant completely unsolder the pipelines connecting the compressor and the condenser assy and then remove the 4 way valve assy 4 way valve assy 4 way valve assy Connection Pipe ...

Page 82: ...e the 2 bolts fixing the valve subassemblies Unsolder the welding joint connecting the gas valve and the return air pipe Remove the gas valve Note When unsoldering the soldering joint wrap the gas valve with wet cloth completely to avoid damage to the valve caused by high temperature Unsolder the welding joint connecting the liquid valve and the connecting pipe Remove the liquid valve Remove screw...

Page 83: ...79 Installation and Maintenance Service Manual 11 Remove condenser sub assy Remove the chassis sub assy and condenser sub assy chassis sub assy condenser sub assy ...

Page 84: ... 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 64 4 18 88 89 87 8 31 43 44 42 8 6 66 67 66 2 19 90 89 6 32 45 44 6 7 68 69 68 20 91 92 91 4 33 46 47 46 4 8 70 71 69 8 21 93 94 93 2 34 48 49 48 2 9 72 71 6 22 95 96 95 35 50 51 50 10 73 74 73 4 23 97 98 9...

Page 85: ...lowing 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 prevent the burrs from getting into the pipe C Put on suitable insulating pipe D Put on the union nut Remove the union nut on the indoor connection pipe and outdoor valve install the union nut on the ...

Page 86: ... 66 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 2 064 116 0 642 0 49 02 39 8 297 78 1 997 117 0 625 1 46 6 40 7 967 79 1 933 118 0 608 2 44 31 41 7 653 80 1 871 119 0 592 3 42 14 42 7 352 81 1 811 120 0 577 4 40 09 43 7 065 82 1 754 121 0 561 5 38 15 4...

Page 87: ... 0 983 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 2 663 117 0 833 1 62 13 40 10 62 79 2 577 118 0 811 2 59 08 41 10 2 80 2 495 119 0 77 3 56 19 42 9 803 81 2 415 120 0 769 4 53 46 43 9 42 82 2 339 121 0 746 5 50 87 44 9 054 83 2 265 122 0 729 6 48 42...

Page 88: ...74 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 10 274 29 41 34 68 9 17 107 2 72 9 259 3 30 39 61 69 8 85 108 2 64 8 245 6 31 37 96 70 8 56 109 2 57 7 232 6 32 36 38 71 8 27 110 2 50 6 220 5 33 34 88 72 7 99 111 2 43 5 209 34 33 45 73 7 73 112 2 37 ...

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