Service Manual02'(/6A16EM4H4R36A16CI4H4R36
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5HIULJHUDQW6\VWHP'LDJUDP5HIULJHUDQW6\VWHP'LDJUDP2-Way valve Strainer Strainer Strainer 3-Way valve Muffler 4-Way valve Heat exchang
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6FKHPDWLF'LDJUDP3ULQWHG&LUFXLW%RDUGTOP VIEWBOTTOM VIEW1 2 347810111213956,QGRRU8QLW1R 1DPH 7HUPLQDORIQHXWUDOZLUH $XWREXW
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)XQFWLRQDQG&RQWURO)XQFWLRQDQG&RQWURO5HPRWH&RQWURO2SHUDWLRQV17843561113121617181910149152ON/OFFPress it to start or stop ope
)XQFWLRQDQG&RQWURO2122232420Up & down swing icon: is displayed when pressing the up & down swing button. Press this button again
)XQFWLRQDQG&RQWURO101112131415169X-FAN:Pressing X -FAN button in COOL or DRY mode,the icon "X-FAN" is displayed and the indoor fan w
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)XQFWLRQDQG&RQWURO'HVFULSWLRQRI(DFK&RQWURO2SHUDWLRQ1. Temperature Parameters Indoor preset temperature (Tpreset)
)XQFWLRQDQG&RQWUROProtectionProtection is the same as that under the cooling mode.(3) Heating ModeWorking conditions and process of heatingIf
)XQFWLRQDQG&RQWUROb.Under AUTO mode,if Tamb. Tpreset +1.8ºF is detected,the unit will select to run under cooling mode,in which case implicit
)XQFWLRQDQG&RQWURODesignation of sensors FaultsIndoor ambient temperatureThe sensor is detected to be open-circuited or short-circuited fo
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7URXEOHVKRRWLQJNote: When replacing the controller, make sure insert the wire jumper into the new controller, otherwise theunit will display C5The b
7URXEOHVKRRWLQJImproper set of temperatureAdjust set temperatureIf cooling load is properCheck the forecasted load of cooling The refrigerant has le
7URXEOHVKRRWLQJThe indoor fan motor is burned or breaks or has the heat protector malfunction. Replace the fan motor or the defective part. The buil
7URXEOHVKRRWLQJWater leakageAbnormal soundand shakeDrainage pipe blocked or brokenChange drainage pipeWrap of refrigerant pipe joint is not closeeno
7URXEOHVKRRWLQJ)ODVKLQJ/('RI,QGRRU2XWGRRU8QLWDQG3ULPDU\-XGJHPHQWNo feedback of outdoor fan motorHigh-preesure ProtectionE1
6XPPDU\DQG)HDWXUHV6XPPDU\DQG)HDWXUHV,QGRRU8QLW2XWGRRU8QLW<%))5HPRWH&RQWUROOHUFANAUTOOPERHEALTHAIRFILTERTURBOON/OFFX-FANHOURHUMIDI
7URXEOHVKRRWLQJIPM protectionOvercurrent protectionOverload protection Exhaust protection Overlod protection of compresoor Outdoor condenser temp.
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7URXEOHVKRRWLQJ+RZWR&KHFN6LPSO\WKH0DLQ3DUW(1) Capacitor charge fault (Fault with outdoor unit) (AP1 below refers to the outdoor contro
7URXEOHVKRRWLQJ(2) IPM Protection, Out-of-step Fault, Compressor Phase Overcurrent (AP1 below refers to the outdoor control panel)Main check points:
7URXEOHVKRRWLQJ(3)High temperature and overload protection diagnosis (AP1 hereinafter refers to the control board of the outdoor unit)Mainly detect:
7URXEOHVKRRWLQJ(4) Start-up failure (following AP1 for outdoor unit control board)Mainly detect:Whether the compressor wiring is connected correct?I
7URXEOHVKRRWLQJ(5) Out of step diagnosis for the compressor (AP1 hereinafter refers to the control board of the outdoor unit)Mainly detect:Whether t
7URXEOHVKRRWLQJ(6)Overload and air exhaust malfunction diagnosis (following AP1 for outdoor unit control board)Mainly detect:Wether the PMV is conne
7URXEOHVKRRWLQJ(7)Power factor correct or (PFC) fault (a fault of outdoor unit) (AP1 hereinafter refers to the control board of the outdoorunit)Main
7URXEOHVKRRWLQJ(8) Communication malfunction: (following AP1 for outdoor unit control board)Mainly detect:Is there any damage for the indoor unit ma
6DIHW\3UHFDXWLRQV6DIHW\3UHFDXWLRQVInstalling, starting up, and servicing air conditioner can behazardous due to system pressure, electrical comp
7URXEOHVKRRWLQJ(9) Flow chart for outdoor communitcation circuit detecting:YYYYYNNNNStartMeasure voltage at the Test 10 position as shown in the dia
7URXEOHVKRRWLQJ+LJKSUHVVXUH3URWHFWLRQHigh-pressure protectionUse pressure gauge to measure if the pressure is really high?Check if the operat
7URXEOHVKRRWLQJTemp.˄˚F˅Resistance˄kΩ˅Temp.˄˚F˅Resistance˄kΩ˅Temp.˄˚F˅Resistance˄kΩ˅Temp.˄˚F˅Resistance˄kΩ˅138.1 18.75 3.848 1.071128.6 17.93 3.711
7URXEOHVKRRWLQJTemp.˄˚F˅Resistance˄kΩ˅Temp.˄˚F˅Resistance˄kΩ˅Temp.˄˚F˅Resistance˄kΩ˅Temp.˄˚F˅Resistance˄kΩ˅181.4 25.01 5.13 1.427171.4 23.9 4.948 1.
7URXEOHVKRRWLQJTemp.(˚F)Resistance˄kΩ˅Temp.(˚F) Resistance˄kΩ˅Temp.(˚F) Resistance˄kΩ˅Temp.(˚F) Resistance˄kΩ˅-20.2 853.5 50 98 120.2 18.34 190.4 4.
5HPRYDO3URFHGXUH5HPRYDO3URFHGXUH5HPRYDO3URFHGXUHRI,QGRRU8QLWWarning Be sure to wait for a minimum of 10 mi
5HPRYDO3URFHGXUHProcedureSteps3.Remove display4.Remove panel5.Remove horizontal louverdisplay clasppanelhorizontal louverRemove 2 screws fixing dis
5HPRYDO3URFHGXUH121236.Remove top cover of electric box 7.Remove front case screwtop cover of electric boxscrew capscrew front caseProcedureStepsRe
5HPRYDO3URFHGXUH123StepsProcedure8.Remove earthing wire 9.Remove electric box cover screwclaspclaspelectric box coverRemove earthing screws, and th
5HPRYDO3URFHGXUH123ProcedureSteps10.Remove temperature sensor 11.Remove electric box temperature sensorscrewelectric boxPull out the indoor tempera
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5HPRYDO3URFHGXUHStepsProcedure12.Remove water tray13.Remove connection pipe between indoor and outdoor units14.Remove pipe-stopping plate15.Remove
5HPRYDO3URFHGXUH123StepsProcedure16.Remove evaporator 17.Remove the fixing plate of motor screwevaporatorscrewRemove screws between evaporator and
5HPRYDO3URFHGXUH1ProcedureSteps2318.Remove cross flow blade and motorblademotorRemove screws fixing cross flow blade and motor.Remove the motor sub
5HPRYDO3URFHGXUH12ProcedureSteps19.Remove cushion rubbercushion rubber Remove the cushion rubber on cross flow blade.Remove the cushion rubber from
5HPRYDO3URFHGXUH5HPRYDO3URFHGXUHRI2XWGRRU8QLWWarning Be sure to wait for a minimum of 10 minutes after turning
5HPRYDO3URFHGXUHProcedureStep3. Remove panel Twist off the screws connecting the panel, chassis and motor support with screwd-river, and then remo
5HPRYDO3URFHGXUHProcedureStepab6. Remove right side plateTwist off the screws connecting the right side plate and chassis, valve support and conden
5HPRYDO3URFHGXUHProcedureStepc8. Remove left side plate 9. Remove axial flow bladeelectric box 1left side plate axial flow blade Twist off the sc
5HPRYDO3URFHGXUHProcedureStepab10. Remove motor and motor support11. Remove 4-way valve motormotor support4-way valveTwist off the tapping screws f
5HPRYDO3URFHGXUHProcedureStep gas valveliquid valve compressor isolation sheet 12. Remove gas valve and liquid valveTwist off the 2 bolts fixing th
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5HPRYDO3URFHGXUHProcedureStepcondenser support plate of condenserchassis15. Remove support plate of condenserTwist off the screws connecting thesup
6SHFL¿FDWLRQV2SHUDWLRQ&KDUDFWHULVWLF&XUYH&RROLQJ +HDWOLQJCurrent(A)Compressor Speed (rps)2535 45 55 6570655545352515Compressor Spee
6SHFL¿FDWLRQVCapacity ratio(%)Capacity ratio(%)5040 405012011010090807060504532185Outdoor temp̧Outdoor temp̧90 95 100 108 11860708090100110120
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