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innovair KIN310C2V31 User Manual Download Page 96

w w w . i n n o v a i r . c o m

SERVICE MANUAL

INNOVAIR INVERTER  PRESTIGE

SERVICE MANUAL

Removal Procedure of Outdoor Unit

Warning: Be sure to wait for a minimum of 20 minutes 
after turning off all power supplies and discharge the 
refrigerant completely before removal.

Procedure 

Steps 

1.Remove cable cross 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 cover

and then remove the valve cover.

Remove 3 connection screws among

top cover plate, front panel and right

side plate. Then remove top cover

plate.

screw

Cable cross plate 2

Valve Cover

screw

top cover plate

NOTE: Take GWH12QC-D3DNA6E/O for example.

93

Summary of Contents for KIN310C2V31

Page 1: ......

Page 2: ...unction and Control 26 6 1 Remote Controller Introduction of YV1FB7F 26 6 2 Remote Controller Introduction of YAN1F1F 30 6 3 Operation of Smart Control Smart Phone Tablet PC For Gree 34 6 4 Operation of Smart Control Smart Phone Tablet PC 47 6 5 Brief Description of Modes and Functions 60 Part Ⅱ Installation and Maintenance 69 7 Notes for Installation and Maintenance 69 8 Installation 72 8 1 Insta...

Page 3: ...View and Parts List 97 10 1 Indoor Unit 97 10 2 Outdoor Unit 112 11 Removal Procedure 121 11 1 Removal Procedure of Indoor Unit 121 11 2 Removal Procedure of Outdoor Unit 126 Appendix 131 Appendix 1 Reference Sheet of Celsius and Fahrenheit 131 Appendix 2 Configuration of Connection Pipe 131 Appendix 3 Pipe Expanding Method 132 Appendix 4 List of Resistance for Temperature Sensor 133 ...

Page 4: ... PRESTIGE Outline Dimension Diagram Indoor Unit for KIN310C2V31 KIN413C2V31 W D H 3 1 2 6 2 1 8 2 1 8 6 5 8 18 3 16 6 5 16 Φ2 3 16 Φ2 3 16 Φ2 3 16 Φ2 3 16 4 11 16 21 5 16 7 1 4 3 5 16 5 1 3 8 1 3 8 MODEL W H D 09K 31 1 8 10 7 8 7 7 8 12K 33 1 4 11 3 8 8 1 4 Unit inch 09K 12K 1 ...

Page 5: ...INNOVAIR INVERTER PRESTIGE SERVICE MANUAL Unit inch Outdoor Unit for KIN310C2V31 KIN413C2V31 30 9 16 21 1 4 12 5 8 28 11 1 4 20 10 1 8 2 ...

Page 6: ... MANUAL Indoor Unit for KIN321C2V31 KIN824C2V31 W D H 4 27 7 3 16 5 1 2 7 1 2 1 1 2 Φ2 3 16 Φ2 3 16 3 1 8 6 1 11 16 8 1 8 27 7 5 16 Φ2 3 4 Φ2 3 4 Unit inch 18K 24K Models W H D 18K 38 3 16 11 13 16 8 13 16 24K 42 7 16 12 13 16 9 11 16 3 ...

Page 7: ...SERVICE MANUAL Outdoor Unit for KIN321C2V31 KIN824C2V31 Unit inch 35 13 3 8 27 9 16 15 5 8 38 14 5 16 22 4 ...

Page 8: ...iagram KIN310C2V31 KIN413C2V31 Indoor unit Outdoor unit Accumlator COOLING Discharge Suction Heat exchanger evaporator Heat exchanger condenser Valve Valve Liquid pipe side Gas pipe side Compressor Strainer Electron expansion valve Connection pipe specification Liquid pipe 1 4 Gas pipe 3 8 5 ...

Page 9: ...rge Suction Heat exchanger evaporator Heat exchanger condenser Valv e Valv e Liquid pipe side Gas pipe side Compresso r Strainer Electron expansion valve KIN321C2V31 KIN824C2V31 Connection pipe specification Liquid pipe 1 4 Gas pipe 1 2 for 18K Gas pipe 5 8 for 24K 6 ...

Page 10: ... Compressor RD Red BU Blue Grounding wire YEGN Yellow Green BK Black 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 20 287 02725 287 225 81 7 7 6 1625 63 63 57 3 5220 78 7 03 6 1625 7 03 6 1625 63 2 5 5 9 5 1 57 6 1 8 0 75 2 8 5 1 1 1 02 8 237 21 0 20 0 1...

Page 11: ...Q SRZHUHG RII IRU OHVV WKDQ PLQXWHV WR SUHYHQW WKH ULVN 51 1 1 8 1 0 1 7 5 1 7 50 1 7 2 1 208 3 1 7 03 6 1625 7 03 6 1625 7 03 57 57 57 6 1625 N N N 28778 2875220 867 3 0DLQ RDUG 3527 725 29 5 2 5 29 203 6 7 9 8 203 203 9 8 8 5 0 1 7 5 1 32 5 1 1 1 75 2 0 62 7 21 6 7 1 8 5 8 5 1 1 1 1 8 1 1 02725 1 1 2 1 5 5 725 2 0 1 7 5 1 9 1 7521 3 16 21 9 9 0 Outdoor Unit for KIN310C2V31 KIN413C2V31 8 ...

Page 12: ...QDO 3 DQG 1 DW 3 LV KLJKHU WKDQ 9 WR SUHYHQW WKH ULVN RI HOHFWULFDO VKRFN 0 1 7 5 1 0 1 7 5 1 3 57 57 1 1 5 8 35 17 5 8 7 2 5 3 1 211 725 8 5 1 1 8 1 1 0 1 7 5 1 9 9 3 16 21 7521 9 0 2 1 1 02725 1 1RWH 0RWRU JURXQG RQO DSSOLHV WR WKH LURQ VKHOO PRWRU Indoor Unit for KIN321C2V31 KIN824C2V31 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 20 287 02725 287 225 81 7 7 6 1625 63 6...

Page 13: ...e 3 Interface of health function neutral wire 4 Interface of neutral wire 5 Interface of fan 6 Interface of health function live wire 7 Jumper cap 8 Auto button 9 Up down swing interface 10 Feedback interface of indoor unit 11 left right swing interface 12 Interface of wifi 13 Interface of tube temperature sensor 14 Wired controller 15 Display interface 16 Fuse Top view Bottom view 1 2 16 3 4 5 6 ...

Page 14: ...an 4 4 way valve 5 Interface of earthing wire 6 Interface of live wire 7 Interface of netural wire 8 Interface of communication 9 Interface of electronic expansion valve 10 Overload interface of compressor 11 Interface of temperature sensor Top view Bottom view 1 2 3 4 5 6 7 8 9 10 11 Outdoor Unit for KIN310C2V31 KIN413C2V31 11 ...

Page 15: ...system high pressure protection Compressor overload protection terminal Terminal of electronic expansion valve Terminal for low pressure protection Interface of fan 4 way valve terminal 2 way valve terminal Terminal of compressor electric heater Terminal of chassis electric heater Live wire 13 Communication wire 14 Grounding wire 15 Neutral wire Outdoor Unit for KIN321C2V31 KIN824C2V31 12 ...

Page 16: ...ion which the model doesnt have if press the corresponding button on the remote controller that the unit will keep the original running status After 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 pressing the button on the remote controller the signa...

Page 17: ... Set temperature range from remote controller 16 30 60 8 86 0O F Fan speed auto low speed medium speed high speed 5 TURBO button Under COOL or HEAT mode press this button to turn to quick COOL or quick HEAT mode icon is displayed on remote controller Press this button again to exit turbo function and icon will disappear 6 button Press or button once increase or decrease set temperature 1 33 8O F H...

Page 18: ...e word ON will stop blinking icon resumes displaying Cancel TIMER ON Under the condition that TIMER ON is started up press TIMER ON button to cancel it TIMER OFF button TIMER OFF button can set the time for timer off After pressing this button icon disappears and the word OFF on remote controller blinks Press or button to adjust TIMER OFF setting After each pressing or button TIMER OFF setting wil...

Page 19: ...ller wont send signal Sleep function and energy saving function cant operate at the same time If energy saving function has been set under cooling mode press sleep button will cancel energy saving function If sleep function has been set under cooling mode start up the energy saving function will cancel sleep function Under heating mode press TEMP and CLOCK buttons simultaneously to start up or tur...

Page 20: ...fi hotspot is the last 8 numbers of the air conditioner mac address Password is 12345678 Step 2 Open APP and the screen will show the air conditioner that you just connected Tap the name of this air conditioner on your phone to enter and realize short distance control as shown below Please refer to Functions introduction for specific control methods Install the APP according to its guidance When s...

Page 21: ...figuration Step 2 Tap Next in the First Step Step 3 Select the wireless network of air conditioner APP will show the password 12345678 default password of the network of air conditioner Then tap Next select the name of home WiFi router then enter the correct password and select a server Step 4 If configuration is successful a window will pop up and read WIFI module starts to connect the configured...

Page 22: ...e hot spot signal of air conditioner is the last 8 bits of MAC address Eg Select a0b41737 and enter the defaulted password 12345678 to connect it Notice Finally press Configuration and APP will send the filled information to Wifi Smart At this time the buzzer will give out a sound which indicates it has started to connect the wireless router Step 3 Turn on APP press button press Add device to ente...

Page 23: ...ng on the APP Functions introduction 1 User registration Purpose To realize long distance control Operation instruction For the first time login you have to register a new username If you already have a username skip the registration step and enter email address and password on the Login Page to log in If password is forgotton you can reset the password Operation steps 1 Select the sever address 2...

Page 24: ...ress Step 1 Tap and hold the Wifi model name such as a0b417ac to enter the page Edit device Tap Image to select the source of image Select from Default images or Take photo or Choose from photos and save an image Step 2 Tap Name to change device name Save it and the new device name will be shown Enable button Lock device to lock the device so that other smart phones can t search the device Tap Tem...

Page 25: ...ct On Then select the repeating days Save the setting of preset name 3 Set device image Please refer to step 1 in 2 1 3 Control functions 1 Common control functions General control on the operation of smart devices On Off temperature fan speed mode etc and the setting of advanced functions air exchange dry health light sleep energy saving upper limit Step 1 General control Enter the homepage Devic...

Page 26: ...dvanced settings You may select Air Dry Health Light Sleep or Energy saving 2 Advanced control functions Set scene Preset Link Infrared control only applicable to smart phones with infrared emitter Set scene Preset the operation of several smart devices by one tap On the page Device tap the image of Device to enter the page Edit scene Tap Add scene and edit the scene name for example Back home Add...

Page 27: ...the scene 3 Preset includes single device preset and multi device preset Single device preset This can preset a certain device to be On Off at a specific time On the homepage Device take air conditioner babyroom as an example Tap at the bottom of the page babyroom Then you will enter the page Preset edit Slide up and down to set the time If you need to synchronize the time tap synchronize IIf such...

Page 28: ...et device to select one or more devices Then return to the page Device 4 Link This function is applicable to some models Select a master device When the environment satisfies the parameters as set in the master device slave devices will execute commands to realize devices linkage Step 1 Set the parameters of master device Select master device select environment parameters select master device stat...

Page 29: ...Step 2 Set time parameter for linkage Tap Time parameter to enter the page Set time Slide rightwards to turn on the setting time Tap Execution time then tap Start and Stop to set start time and stop time respectively Tap OK at the top right corner to save the setting Tap the days below Repeat to select the repeating days Then tap Save Step 3 Select Execute command Tap Execute command and enter the...

Page 30: ...scenes 4 Menu functions Menu functions Share Set History Feedback 1 Share To share quick configuration information and unit s information including local export and local import For local import you just need to tap Local import and wait for the data download Local export Step 1 Export local data to another smart phone Enter menu page on the left side and tap Share to enter the page Share Then tap...

Page 31: ...e connecting to the same wireless router 2 Backup To keep backup of the quick configuration information and unit s information including backup to cloud and backup list on the cloud Backup to cloud Enter the menu page on the left and tap Backup Tap Backup to cloud and then tap Yes Then wait for the data download Select Backup list on the cloud Then backup records will appear Tap Record to download...

Page 32: ...et vibration message alerts server updates etc The server setting here must be the same as the server setting in Configuration mentioned before Otherwise remote control will be invalid 4 Help Please refer to Help of APP for the instruction of the latest functions 29 ...

Page 33: ...alue 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 above 5 Fan mode Under this mode indoor fan operates at set fan speed Compressor outdoor fan 4 way valve and electric heating tube stop operation Indoor fan can select to operate at high medium low or auto fan speed ...

Page 34: ...be still in standby mode after finishing refrigerant recycling if the unit is in ON status before refrigerant recycling it will still run in original operation mode 11 Ambient temperature display control mode 1 When user set the remote controller to display set temperature corresponding remote control code 01 current set temperature will be displayed 2 Only when remote control signal is switched t...

Page 35: ...or is shut down and Tsetup Tindoor ambient temperature Tcooling indoor ambient temperature compensation 32 9ºF start up the machine for cooling the cooling operation will start 2 During operations of cooling if 32ºF Tsetup Tindoor ambient temperature Tcooling indoor ambient temperature compensation 35 6ºF the cooling operation will be still running 3 During operations of cooling if 35 6ºF Tsetup T...

Page 36: ...hed 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 Control Notes Only the outer fans run for at least 80s in each air flow speed can the air flow be switched After the outer fans run compulsively in high speed for 80s when the machine starts up control the...

Page 37: ...t 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 Frequency limited If TCooling overload frequency limited temperature Touter pipe T Cooling overload frequency reducing temperature at normal speed you should limit the frequency raising of compressor 3 Reducing frequency...

Page 38: ...rature 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 speed during discharging TDischarge Tfrequency reducing temperature at high speed during discharging you should adjust the compressor frequency by reducing 8Hz 90s till the lower limit After it was runn...

Page 39: ...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 machine for module overheating protection 5 Power turn off If the TPower turn off temperature of module TModule you should stop the machine for module overheating protection If TModule TLimited frequency temperatur...

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 for four way valve happens to stop working for 3 times in succession it is available if presses ON OFF Attention the protection shall be shielded during the testing mode and defrosting process and it...

Page 41: ...n 32ºF Toutdoor amb 35 6ºF the electric heating of chassis will keep original status 7 Electric Heating Function of Compressor 1 When Toutdoor amb 23ºF compressor stops operation while the electric heating of compressor starts operation 2 When Toutdoor amb 28 4ºF the electric heating of compressor stops operation 3 When 23ºF Toutdoor amb 28 4ºF the electric heating of compressor will keep original...

Page 42: ...ing wire cant 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 cant be pressed by hard objects 9 If power cord or connection wi...

Page 43: ...e 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 pipe If compressor starts running when stop valve is open and connection pipe is not yet connected air will be sucked in and cause pressure rise or compressor rupture resulting in injury 5 When installing...

Page 44: ...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 41 ...

Page 45: ...h 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 the wall At least 11 13 16 inch At least 19 11 16 inch Space to the obstruction At least 11 13 16 inch Space to the obstruction At least 19 11 16 inch Drainage pipe Space to the obstruction 42 ...

Page 46: ...g 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 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...

Page 47: ...dren 5 The location should be 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 8 Please try your best to keep way from fluorescent lamp 3 Outdoor Unit 1 Select a location where the noise and outflow air emitted by the outdoor unit will not affect n...

Page 48: ... Choose the position of piping hole according to the direction 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 ...

Page 49: ...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 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 ...

Page 50: ...ews 5 Connect Outdoor Electric Wire 1 Let the connection wire sleeve go through the two holes of baffle tighten the connection joint of sleeve and baffle 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 reasonably and hidden p...

Page 51: ...AT to check whether the operation is normal or not If the ambient temperature is lower than 16 the air conditioner cant start cooling 2 Leakage Detection 1 With leakage detector Check if there is leakage with leakage detector 2 With soap water If leakage detector is not available please use soap water for leakage detection Apply soap water at the suspected position and keep the soap water for more...

Page 52: ...quency Exhaust sensor open or short circuit Outdoor tube sensor open or short circuit Outdoor ambient sensor open or short circuit Indoor tube sensor open or short circuit Indoor ambient sensor open or short circuit Indoor unit and outdoor unit doesn t match Jumper cap malfunction protection No feedback of indoor fan motor Low PN voltage protection PL 21 12 4 way valve reversal abnormal U7 20 DRED...

Page 53: ...rd 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 short...

Page 54: ...if 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 ...

Page 55: ...e 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 mainboard ...

Page 56: ...rdischarges 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 sam...

Page 57: ...AL 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 5 Malfunction of detecting plate WIFI JF 54 ...

Page 58: ...blockage 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 hot Replace a main board with the same model Malfunction is eliminated Malfunction is eliminated Malfunction is eliminated Malfunction is eliminated Troubleshooting for F0 malfunction Yes No ...

Page 59: ... 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 the power and repair the power supply to restore the range 210VAC 250VAC power on and restart the unit If the fault is eliminated Shut down the power and wait 20 minutes or use DC voltmeter to measure th...

Page 60: ...P secure Loose Is the connection in correct order Is the voltage input of the machine within normal range Use AC voltmeter to measure the voltage between terminal L and N on the wiring board XT Is the compressor coil resistance normal Is the insulation of compressor coil against the copper tube in good condition Is the working load of the machine too high Is the radiation good Is the charge volume...

Page 61: ...ge between the two ends of capacitor C2 until the voltage is lower than 20V Replace the capacitor C2 Then energize and start the unit Replace the control panel AP1 Take corrective actions according to Technical Service Manual and then energize and start the unit If there is any abnormality described above Replace the control panel AP1 If the connection between AP1 and COMP is unsecure or the conne...

Page 62: ...nd high 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 protection please operate it after the outdoor ambient temp erature is normalized Improve the heat dissipation environ ment of the unit Does the outdoor fan work normally 1 Check if the fan terminal OF...

Page 63: ...r 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 wires for the compressor connected correctly Is connection sequence right Connect the wires as per the connection diagram Replace the control panel AP1 If the fault is eliminated Replace the compressor En...

Page 64: ...or the 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 the compressor End Out of step occurs in operation Is the outdoor fan working normally Is the outdoor unit blocked by foreign objects Replace the control panel AP1 If the fault is eliminated Rep...

Page 65: ... 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 to the terminal hole and the fifth pin are almost the same less than 100 ohm Replace the electronic expansion valve If the fault is eliminated If the fault is eliminated Replace the control panel AP1 Cool...

Page 66: ... is any damage or short circuit Replace it as per the wiring diagram and reconnect the wires If the fault is eliminated Remove the PFC capacitor and measure resistance between the two terminals Is the resistance around zero The capacitor is short circuited and the capacitor should be repla ced Restart the unit If the fault is eliminated Disconnect the terminals for the reactor and measure the resi...

Page 67: ...nt 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 the outdoor unit If the fault is eliminated The communication circuit is abnormal Replace the main board of the indoor unit End If the fault is eliminated Replace the main board AP1 of the outdoor unit If...

Page 68: ...e method 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 Poor Cooling Heating for Air Conditioner 3 Horizontal Louver Cant Swing Possible Causes Discriminating Method Air conditioner Status Troubleshooting No power supply or poor connection for power pl...

Page 69: ...e 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 method air conditioner status Troubleshooting Wrong wire connection or poor connection Check the wiring status according to circuit diagram Connect wires according to wiring diagram to make sure all wirin...

Page 70: ...rder to prevent electric shock If the voltage between the two points is below 20V you can perform mainte nance safely Troubleshooting for KIN321C2V31 KIN824C2V31 Precautions before Maintenance There are high capacity electrolytic capacitors on the outdoor mainboard Thus even the power is cut off there is high voltage inside the capacitors and it needs more than 20min to reduce the voltage to safet...

Page 71: ...INNOVAIR INVERTER PRESTIGE SERVICE MANUAL Error Code List 13 Malfunction of detecting plate WIFI JF Only for the mode with this function 68 ...

Page 72: ... MANUAL It s the normal state Off 3s and blink once during blinking ON 10s and Off 05s Defrosting will occur in heating mode Compressor will operate while indoor fan will stop Complete unit current detection malfunction Off 3s and blink 13 times U5 69 ...

Page 73: ...INNOVAIR INVERTER PRESTIGE SERVICE MANUAL 70 ...

Page 74: ...nsor broken Is mainboard 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 ...

Page 75: ... board that is of the same model Replace a new main board that is of the same model It s the malfunction of main board Then check whether the voltage between terminal 2 and terminal 3 of the motor interface is 15VDC Connect power and restart the unit Test whether the voltage between terminal 1 and terminal 2 of motor interface is within 280 310VDC Then check whether there is voltage between termin...

Page 76: ...it of 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 ma...

Page 77: ...ard 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 diagram Match correctly according to product specification Replace communication cord Replace ODU s main board Malfunction eliminated Malfunction eliminated Malfunction eliminated yes yes yes yes yes yes yes...

Page 78: ...ICE MANUAL 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 5 Malfunction of detecting plate WIFI JF 75 ...

Page 79: ...st 6 Both ends of electrolytic capacitor C47 C47 12V power DC 12V 13V Test 7 Both ends of electrolytic capacitor C60 C60 5V power DC 5V Test 8 Both ends of electrolytic capacitor C73 C73 3 3V power DC 3 3V Test 9 Between S and T Communication circular current DC 56V Test 10 Between point N and GND C50 to N terminal ground signal receiving terminal of outdoor unit Jumping between 0V and 3 3V Test 1...

Page 80: ...00V Fault with 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 the power and repair the power supply to restore the range 210VAC 250VAC power on and restart the unit If the fault is eliminated Shut down the power and wait 20 mi nutes or use DC voltmete...

Page 81: ...ressor COMP is well connected If they are loosened If the connection sequence is correct Is voltage input in the normal range Test the voltage between L N of wiring board XT by DC voltage meter If coil resistance of compressor is normal Is compressor coil insulating to copper pipe well If the work load of unit is heavy If radiating of unit is well If the refrigerant charging is appropriate Malfunc...

Page 82: ...sure the voltage between the two ends of capacitor C2 until the voltage is lower than 20V Replace the capacitor C2 Then energize and start the unit Replace the control panel AP1 Take corrective actions according to Technical Service Manual and then energize and start the unit If there is any abnormality described above Replace the control panel AP1 If the connection between AP1 and COMP is unsecur...

Page 83: ...heck if fan terminal OFAN is connected well 2 Test if resistance value of any two terminals is less than 1k with ohmic meter If the indoor and outdoor fan work well After the unit de energized for 20min Replace control board AP1 If the radiating of outdoor and indoor unit is well Improve the radiating environment of unit Replace outdoor fan Y Replace fan capacitor C1 Anti high temperature overload...

Page 84: ...or wire COMP UVW is well connected and connection sequence is correct Replace control board AP1 Replace the compressor If malfunction is removed If the stop time of compressor is more than 3min N If the stop time is not enough and the high and low pressure of system is not balance please start it after 3min Improve the connection situation of control board AP1 and compressor COMP connect it with w...

Page 85: ...works normally If the stop time of compressor is more than 3min Synchronism after energize the unit and start it Connect wire well Synchronism occurred during operation Replace control board AP1 If the radiating of unit is well Remove malfunction Improve the radiating of unit clean heat exchanger and increase ventilation Replace fan capacitor C1 Replace outdoor fan Y N N N Y Y N Replace control bo...

Page 86: ...h wiring diagram Replace EKV coil of electron expansion valve If the wiring terminal FA of electron expansion is well connected Remove malfunction The resistance value of first 4 l ead foot an d th e fifth lead foot is similar less than 100 After the unit de energized for 20min Remove malfunction Y N N N If the overload protector SAT is well connected N Under ambient temperature test the resistanc...

Page 87: ...art Check communication circuit of outdoor unit Problem of communication circuit Check built in wiring of indoor and outdoor unit Connection correct Malfunction of circuit is detected with control board AP1 voltage Check connection wire of indoor and outdoor unit with circuit diagram Check connection wire of indoor and outdoor unit with circuit diagram If the unit is operation normal before malfun...

Page 88: ...e meter Number jumping Outdoor unit malfunction Test voltage value with Test 13 position in diagram with voltage meter Number jumping Test voltage value with Test 11 position in diagram with voltage meter Number jumping Test voltage value with Test 12 position in diagram with voltage meter Y Y Y Y Number jumping The circuit of outdoor unit communication is normal Y N N N N End 85 ...

Page 89: ...od for details Malfunction of compressor Compressor cant operate Refer to point 5 of maintenance method for details Troubleshooting for Normal Malfunction 1 Air conditioner cant be started up 2 Poor cooling heating for air conditioner 3 Horizontal louver cant swing Possible Causes Discriminating Method Air conditioner Status Troubleshooting No power supply or poor connection for power plug After e...

Page 90: ...rain 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 method air conditioner status Troubleshooting Wrong wire connection or poor connection Check the wiring status according to circuit diagram Connect wires according to wiring diagram to make sure a...

Page 91: ...t panel Front case Right filter Groove Left filter Open the front panel Push the left filter and right filter until they are separate from the groove on the front panel Remove the left filter and right filter respectively 1 A1 A5 panel display Screw off the 2 screws that are locking the display board Separate the display board from the front panel 2 B2 A5 D2 panel display Screw off the 2 screws th...

Page 92: ... sub assy and bottom case Lift up the front case sub assy and take it out Electric box cover2 Detecting plate for 12K for 09K Detecting plate Screw Screw 5 Remove front case sub assy 6 Remove vertical louver Front case sub assy Front case sub assy Clasp Screw caps Screws Screw Vertical louver Vertical louver Clasps Bottom case 4 Remove detecting plate and electric box cover 2 Remove the screw fixi...

Page 93: ...ding 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 screws that are locking the wire clip Loosen the power cord and remove its wiring terminal Lift up the main board and take it off 7 Remove electric box assy Electric box Electric box assy Clasps Shield co...

Page 94: ...d then pull out the 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 Procedure Step Remove 3 screws fixing evaporator assy 8 Remove evaporator assy Screws Connection pipe clamp Evaporator assy Evaporator assy Screw Groove Bottom case Clasp Connection pipe A...

Page 95: ...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 then remove the step motor Screws Screw Motor clamp 9 Remove motor and cross flow blade Motor Cross flow Holder sub assy Step motor Screws a b 92 ...

Page 96: ...e Steps 1 Remove cable cross 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 cover and then remove the valve cover Remove 3 connection screws among top cover plate front panel and right side plate Then remove top cover plate screw Cable cross plate 2 Val...

Page 97: ...n 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 the axial flow blade Remove connection screws connecting the right side plate with the valve support and the electric box Then remove the right side plate Grille Panel Axial flow blade Right side plate 9...

Page 98: ...and unsolder the 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 sure not to burn out the lead out wire of compressor 7 Remove 4 way valve assy 8 Remove capillary sub assy Unsolder weld point of capillary Sub assy valve and outlet pipe of condensat...

Page 99: ...r 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 Clapboard Sub Assy The Clapboard Sub Assy has a hook on the lower side Lift and pull the Clapboard Sub Assy to remove Clapboard Sub Assy 96 ...

Page 100: ...gas valve 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 connecting liquid valve and remove the liquid valve b Remove the 3 footing screws of the compressor and remove the compressor Compressor Gas valve Liquid valve 97 ...

Page 101: ...Tf Tcx1 8 32 Ambient temperature Fahrenheit display temperature Fahrenheit Celsius Fahrenheit display temperature Fahrenheit Celsius Fahrenheit display temperature Fahrenheit Celsius 32 33 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 64 4 18 88...

Page 102: ...g 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 pipe ...

Page 103: ...8 233 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 02 102 2 8 297 172 4 1 997 242 6 0 625 33 8 46 6 104 7 967 174 2 1 933 244 4 0 608 35 6 44 31 105 8 7 653 176 1 871 246 2 0 592 37 4 42 14 107 6 7 352 177 8 1 811 248 0 577 39 2 40 09 109 4 7 065 179 6 1...

Page 104: ... 80 31 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 0 833 33 8 62 13 104 10 62 174 2 2 577 244 4 0 811 35 6 59 08 105 8 10 2 176 2 495 246 2 0 77 37 4 56 19 107 6 9 803 177 8 2 415 248 0 769 39 2 53 46 109 4 9 42 179 6 2 339 249 8 0 746 41 50 87...

Page 105: ...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 9 165 224 6 2 715 15 8 259 3 86 39 61 156 2 8 854 226 4 2 64 17 6 245 6 87 8 37 96 158 8 555 228 2 2 568 19 4 232 6 89 6 36 38 159 8 8 268 230 2 498 21 2 220 5 91 4 34 88 161 6 7 991 231 8 2 431 23 209 93 2 33 45 163 4 7...

Page 106: ...s and discharge the refrigerant completely before removal 1 Remove filter assy Open the front panel Push the left and right filters to make 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 Screw off the 2 screws that are locking the display board Separate the display board from the front panel...

Page 107: ... 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 cover 2 and detecting plate WIFI then remove the electric box cover 2 and detecting plate WIFI Electric box cover 2 Detecting plate WIFI Screw Screws 104 ...

Page 108: ...inder and pull out 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 wire S crew Wire clip Power cord Rotate the electric box assy Twist off the screws that are locking the wire clip and loosen the power cord Remove the wiring terminal of power cord Li...

Page 109: ... INVERTER PRESTIGE 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 Groove Clasp 106 ...

Page 110: ...w w w i n n o v a i r c o m SERVICE MANUAL INNOVAIR INVERTER PRESTIGE SERVICE MANUAL 107 ...

Page 111: ...de plate and then remove the valve cover 2 Remove grille and outer case grille Remove the 4 screws connecting the grille and outer case and then remove the panel grille Remove the screws connecting the top cover with outer case right side plate and left side plate lift the top cover upwards to remove it Steps Procedure b a Warning Be sure to wait for a minimum of 20 minutes after turning off all p...

Page 112: ...ht side plate and left side plate and then remove the outer case Remove the screws connecting the right side plate with electric box assy valve support chassis and condenser side plate and then remove the right side plate Remove the screws connecting the left side plate with chassis and then remove the left side plate Steps Procedure left side plate outer case 3 Remove right left side plate right ...

Page 113: ...ting the motor support and chassis and then loosen the stopper to remove the motor support Remove the screws fixing the electric box sub assy loosen the wire bundle pull out the wiring terminals and then pull the electric box upwards to remove it Steps Procedure 5 Remove electric box 4 Remove axial flow blade axial flow fan motor support fan motor electric box a b 110 ...

Page 114: ...nd then remove the isolation plate Unsolder the welding joints connecting the 4 way valve assy with capillary sub assy compressor and condenser remove the 4 way valve Note Before unsoldering the welding joint wrap the 4 way valve with a wet cloth completely to avoid damage to the valve caused by high temperature Steps Procedure 8 Remove 4 way valve assy 7 Remove isolation plate 6 Remove the soundp...

Page 115: ...discharge pipe and suction pipe from foreign objects Remove the screws connecting the support condenser and condenser assy and then remove the support condenser Remove the 2 screws fixing the condenser and chassis and then lift the condenser upwards to remove it Steps Procedure 10 Remove condenser sub assy 9 Remove compressor compressor support condenser chassis subassy sub assy a b 112 ...

Page 116: ... 74 73 4 23 82 83 82 4 28 66 67 66 2 19 75 76 75 2 24 84 85 84 2 29 68 68 20 77 77 25 86 86 30 1 Standard length of connection pipe 16 40ft 24 61ft 26 25ft 2 Min length of connection pipe is 9 84ft 3 Max length of connection pipe and max high difference More details please refer to the specifications 4 The additional refrigerant oil and refrigerant charging required after prolonging connection pip...

Page 117: ... following 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 ...

Page 118: ... 163 4 2 358 233 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 02 102 2 8 297 172 4 1 997 242 6 0 625 33 8 46 6 104 7 967 174 2 1 933 244 4 0 608 35 6 44 31 105 8 7 653 176 1 871 246 2 0 592 37 4 42 14 107 6 7 352 177 8 1 811 248 0 577 39 2 40 09 109 4 7 ...

Page 119: ...5 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 0 833 33 8 62 13 104 10 62 174 2 2 577 244 4 0 811 35 6 59 08 105 8 10 2 176 2 495 246 2 0 77 37 4 56 19 107 6 9 803 177 8 2 415 248 0 769 39 2 53 46 109 4 9 42 179 6 2 339 249 8 0 746 41 50 87 111 2 9...

Page 120: ...9 6 8 342 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 9 165 224 6 2 715 15 8 259 3 86 39 61 156 2 8 854 226 4 2 64 17 6 245 6 87 8 37 96 158 8 555 228 2 2 568 19 4 232 6 89 6 36 38 159 8 8 268 230 2 498 21 2 220 5 91 4 34 88 161 6 7 991 231 8 2 431 23 2...

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