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innovair KIN310C2V31 User Manual

Prestige inverter mini split
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Summary of Contents for innovair KIN310C2V31

  • Page 2: Table Of Contents

    SERVICE MANUAL 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 ..................13 2.3 Capacity Variation Ratio According to Temperature ............13 2.4 Cooling and Heating Data Sheet in Rated Frequency ...........14 2.5 Noise Curve ........................14 3.

  • Page 3: Table Of Contents

    INNOVAIR INVERTER PRESTIGE SERVICE MANUAL 9. Maintenance ......................79 9.1 Error Code List .......................79 9.2 Troubleshooting for Main Malfunction ................80 9.3 Troubleshooting for Normal Malfunction .................95 10. Exploded View and Parts List ..............97 10.1 Indoor Unit ........................97 10.2 Outdoor Unit ....................... 112 11.
  • Page 4 SERVICE MANUAL SERVICE MANUAL INNOVAIR INVERTER PRESTIGE Outline Dimension Diagram Indoor Unit for KIN310C2V31, KIN413C2V31 6 5/8 18 3/16 6 5/16 Φ2 3/16 Φ2 3/16 2 1/8 2 1/8 3 1/2 4 11/16 21 5/16 7 1/4 Φ2 3/16 Φ2 3/16...
  • Page 5 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL Outdoor Unit for KIN310C2V31, KIN413C2V31 10 1/8 12 5/8 30 9/16 Unit:inch...
  • Page 6 SERVICE MANUAL Indoor Unit for KIN321C2V31, KIN824C2V31 7 3/16 Φ2 3/16 Φ2 3/16 1 1/2 7 1/2 5 1/2 8 1/8 7 5/16 Φ2 3/4 Φ2 3/4 1 11/16 3 1/8 Unit:inch Models 38 3/16 11 13/16 8 13/16 42 7/16 12 13/16 9 11/16 w w w .
  • Page 7 SERVICE MANUAL Outdoor Unit for KIN321C2V31, KIN824C2V31 13 3/8 15 5/8 Unit: inch...

  • Page 8: Specifications

    INNOVAIR INVERTER PRESTIGE SERVICE MANUAL Refrigerant System Diagram KIN310C2V31 , KIN413C2V31 Outdoor unit Indoor unit Gas pipe side Valve Di s charge Heat exchanger (evaporator) Suction Accumlator Heat Compressor exchanger (condenser) Liquid pipe side Valve Electron Strainer expansion valve COOLING Connection pipe specification: Liquid pipe:1/4"...

  • Page 9: Indoor Unit

    SERVICE MANUAL KIN321C2V31, KIN824C2V31 Outdoor unit Indoor unit Gas pipe side Valv Di s charge Heat exchanger (evaporator) Suction Accumlator Heat Compresso exchanger (condenser) Liquid pipe side Valv Electron Strainer expansion valve COOLING Connection pipe specification: Liquid pipe:1/4" Gas pipe:1/2" for 18K Gas pipe:5/8"...

  • Page 10: Electrical Part

    Orange Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model. ● Indoor Unit for KIN310C2V31 , KIN413C2V31 600007000575 w w w . i n n o v a i r . c o m...

  • Page 11: Outdoor Unit

    SERVICE MANUAL ● Outdoor Unit for KIN310C2V31, KIN413C2V31 60000700092101...
  • Page 12 SERVICE MANUAL ● Indoor Unit for KIN321C2V31, KIN824C2V31 600007000575 ● Outdoor Unit for KIN321C2V31, KIN824C2V31 60000700023002 w w w . i n n o v a i r . c o m...

  • Page 13: Pcb Printed Diagram

    INNOVAIR INVERTER PRESTIGE SERVICE MANUAL PCB Printed Diagram Indoor Unit for KIN310C2V31, KIN413C2V31, KIN321C2V31, KIN824C2V31 ● Top view Name Interface of communication wire for indoor unit and outdoor unit 2 Interface of live wire Interface of health function neutral wire...
  • Page 14 SERVICE MANUAL Outdoor Unit for KIN310C2V31, KIN413C2V31 ● Top view Compressor UVW three phase input interface Interface of reactor Interface of fan 4-way valve Interface of earthing wire Interface of live wire Interface of netural wire Interface of communication Interface of electronic expansion...
  • Page 15 SERVICE MANUAL Outdoor Unit for KIN321C2V31, KIN824C2V31 ● Top view Name Compressor three phase input interface Terminal of system high pressure protection Compressor overload protection terminal Interface of temperature sensor Terminal of electronic expansion valve Terminal for low pressure protection Interface of fan 4-way valve terminal 2-way valve terminal...

  • Page 16: Function And Control

    SERVICE MANUAL Function and Control Remote Controller Introduction of Prestige ON/OFF button MODE button WIFI FAN button SWING button TURBO button ▲/ button SLEEP button TEMP button I FEEL button LIGHT button CLOCK button TIMER ON / TIMER OFF button Introduction for icons on display screen Set fan speed I feel...
  • Page 17 SERVICE MANUAL 1. ON/OFF button Press this button can turn on or turn off the air conditioner. After turning on the air conditioner, operation indicator " "on indoor units display is ON (green indicator. The colour is different for different models), and indoor unit will give out a sound. 2.
  • Page 18 SERVICE MANUAL 7. SLEEP button Under COOL, HEAT or DRY mode, press this button to start up sleep function. " " icon is displayed on remote controller. Press this button again to cancel sleep function and " " icon will disappear. 8.

  • Page 19: Function Introduction For Combination Buttons

    SERVICE MANUAL Function introduction for combination buttons 1. Energy-saving function Under cooling mode, press "TEMP" and " CLOCK" buttons simultaneously to start up or turn off energy-saving function. When energy-saving function is started up, "SE" will be shown on remote controller, and air conditioner will adjust the set temperature automatically according to ex-factory setting to reach to the best energy-saving effect.

  • Page 20: Operation Of Smart Control (Smart Phone, Tablet Pc)

    SERVICE MANUAL Operation of Smart Control (Smart Phone, Tablet PC) Operation Instructions Download and install APP Scan the following QR code with your smart phone and download Wifi Smart. Install the APP according to its guidance. When successfully installed, your smart phone homepage will show this icon User of IOS system can search for the Wifi Smart in Apple store to download the Apple version APP.
  • Page 21 SERVICE MANUAL 2.Configuration method for Android phones 4 steps of configuration Step 1: Enter homepage "Device", and then tap at the top right corner. Select "Add device" and enter the page "Add device". Tap "Manual configuration" and enter the page "Manual configuration". Step 2: Tap "Next"...
  • Page 22 SERVICE MANUAL NOTE: After configuration is completed, the air conditioner hot spot connected to your phone will disappear. You should reconnect your phone to the home WiFi router to realize long-distance control.The above configuration only needs onephone. Other types of phones shall install this APP, connect with the air conditioner hot spot or wireless router of WiFi air conditioner.
  • Page 23 SERVICE MANUAL If the name of router or the password is wrong, Wifi Smart can’t connect to the wireless router. 2 mins later, please conduct the configuration operation again. starts to connect the wireless router. Wrong server selection will cause long-distance control invalid. Therefore, please make sure thatthe server selection when registering the account is the same as this one.
  • Page 24 SERVICE MANUAL 2.Personal settings Purpose: Set name (device name, preset name, etc.) and images (device image) in order to identify a user easily. (1) Set device name After quick configuration, a list of controllable smart devices will be generated. Default name for air conditioner is the last 8 numbers of the air condtioner mac address.
  • Page 25 SERVICE MANUAL (2) Set preset name Step 1: Tap at the top right corner of the homepage "Device". Select "Add preset" and enter the page "Preset edit". Step 2: Choose the time. Tap "Name". As shown in the picture, its name is "baby room". For timer type, select "On". Then select the repeating days.
  • Page 26 SERVICE MANUAL Tap "babyroom" and enter the page of air conditioner control. Tap to turn on the control switch. to increase or decrease temperature. Tap to change working mode. Tap to enter the page of fan speed adjustment. and go around the circle to adjust fan speed. Step 2: Advanced settings to enter advanced settings.
  • Page 27 SERVICE MANUAL Continue to select the next execution device as instructed above. Tap to set the interval. Tap "Save". Tap the scene picture displayed on homepage "Device" to send the command. Then the scene "Back home" will be in execution. You may view the execution condition of 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.
  • Page 28 SERVICE MANUAL Tap "Name" to customize the preset name. Preset device can’t be selected and it will default to "babyroom". Select "On" for the timer type. Select repeating days to complete the preset. Multi-device preset: This can preset multiple devices to execute a command at a specific time. Please refer to the instructions as how to set preset time, name, timer type and repeating days for a single device.
  • Page 29 SERVICE MANUAL Tap "Temperature" to enter the page "Select temperature parameter". Slide up or down to adjust temperature. Tap "Upper limit" or "Lower limit". Tap "Mode" and "On/Off" to select the status of master device. Then tap "Save". Step 2: Set time parameter for linkage. Tap "Time parameter" to enter the page "Set time". Slide rightwards to turn on the setting time.
  • Page 30 SERVICE MANUAL Tap the name of device that you want to control. Tap "ON" or "OFF" and then tap "Save" to complete the linkage. Tap "Save" and then repeat the above steps to set linkage of several 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.
  • Page 31 SERVICE MANUAL Step 2: Another smart phone to be imported. Tap the model name and wait for the download. Notice: This function requires that the two phones are of the same operating system. They are either Android phones or Apple phones,and are connecting to the same wireless router.
  • Page 32 SERVICE MANUAL (3) Settings User can set 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. w w w .

  • Page 33: Brief Description Of Modes And Functions

    SERVICE MANUAL Brief Description of Modes and Functions Indoor Unit ● 1.Basic function of system (1)Cooling mode (1) Under this mode, fan and swing operates at setting status. Temperature setting range is 60.8~86.0 (2) During malfunction of outdoor unit or the unit is stopped because of protection, indoor unit keeps original operation status. (2)Drying mode (1) Under this mode, fan operates at low speed and swing operates at setting status.
  • Page 34 SERVICE MANUAL (8)I feel control mode After controller received I feel control signal and ambient temperature sent by remote controller, controller will work according to the ambient temperature sent by remote controller. (9)Compulsory defrosting function (1) Start up compulsory defrosting function Under ON status, set heating mode with remote controller and adjust the temperature to 60.8 F.

  • Page 35: Outdoor Units

    SERVICE MANUAL 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 = (T – ⊿ T indoor ambient temperature cooling indoor ambient temperature compensation b.
  • Page 36 SERVICE MANUAL 3. Special Functions Defrosting Control ① Conditions for starting defrosting After the time for defrosting is judged to be satisfied, if the temperature for defrosting is satisfied after detections for continuous 3minutes, the defrosting operation will start. ② Conditions of finishing defrosting The defrosting operation can exit when any of the conditions below is satisfied: ③...
  • Page 37 SERVICE MANUAL 1. Starting estimation: After the compressor stopped working for 180s, if T > [T (the temperature of hysteresis is 35.6ºF )], inner pipe frozen-preventing frequency-limited temperature the machine is only allowed to start for operating, otherwise it should not be started, and should be stopped to treat according to the frozen- preventing protection: Clear the trouble under the mode of power turn-off / heating, and the protection times are not counted.
  • Page 38 SERVICE MANUAL 1. Frequency limited If [T ]≤T <[T ] , you should limit the frequency raising of heating overload frequency-limited temperature inner pipe heating overload frequency reducing temperature at normal speed compressor. 2. Reducing frequency at normal speed and stopping machine: If T[ ]≤T <[T...
  • Page 39 SERVICE MANUAL (6)Voltage sag protection After start the compressor, if the time of DC link Voltage sag [U ] is measured to be less than t Voltage sag protection time , Sagging protection voltage the machine should be stop at once, hand on the voltage sag trouble, reboot automatically after 30 minutes. (7)Communication fault When you have not received any correct signal from the inner machine in three minutes, the machine will stop for communication fault.
  • Page 40 SERVICE MANUAL (12) Starting-up Failure Protection for Compressor Stop the compressor after its starting-up fails, restart it after 20s if the fault doesnt shows, and if they are all failing for the successive start 3 times, it shall be reported as Starting-up Failure, and then restart up it after 3 min. When it still not be able to operate through carry out the above process for 5 times, it is available if press ON/OFF.
  • Page 41 SERVICE MANUAL 6. Electric Heating Function of Chassis (1) When Toutdoor amb.≤32ºF , the electric heating of chassis will operate; (2) When Toutdoor amb.>35.6ºF , the electric heating of chassis will stop operation; (3)When 32ºF <Toutdoor amb.≤35.6ºF, the electric heating of chassis will keep original status. 7.

  • Page 42: Notes For Installation And Maintenance

    SERVICE MANUAL Installation and Maintenance Notes for Installation and Maintenance Safety Precautions: 10. If the power cord or connection wire is not long enough, please get the specialized power cord or connection wire Important! from the manufacture or distributor. Prohibit prolong the wire by yourself.
  • Page 43 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL Safety Precautions for Installing and Relocating the Unit: To ensure safety, please be mindful of the following precautions. Warnings 1. When installing or relocating the unit, be sure to keep the refrigerant circuit free from air or substances other than the specified refrigerant.

  • Page 44: Installation

    SERVICE MANUAL Main Tools for Installation and Maintenance 1. Level meter, measuring tape 2. Screw driver 3. Impact drill, drill head, electric drill 4. Electroprobe 5. Universal meter 6. Torque wrench, open-end wrench, inner hexagon spanner 7. Electronic leakage detector 8.

  • Page 45: Installation Dimension Diagram

    INNOVAIR INVERTER PRESTIGE SERVICE MANUAL Installation Installation Dimension Diagram Space to the wall Space to the wall At least 5 7/8 inch At least 5 7/8 inch Drainage pipe...
  • Page 46 SERVICE MANUAL Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install the support of outdoor unit Install wall-mounting (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Fix outdoor unit...

  • Page 47: Installation Parts-Checking

    INNOVAIR INVERTER PRESTIGE SERVICE MANUAL Requirements for Electric Connection Installation Parts-checking 1. Safety Precaution Name Name (1) Must follow the electric safety regulations when installing Indoor unit Sealing gum the unit. Outdoor unit Wrapping tape (2) According to the local safety regulations, use qualified Support of outdoor power supply circuit and air switch.
  • Page 48 SERVICE MANUAL in the holes. 5. Connect the Pipe of Indoor Unit (3) Fix the wall-mounting frame on the wall with tapping screws (1) Aim the pipe joint at the corresponding bellmouth.(As show (ST4.2X25TA) and then check if the frame is firmly installed by in Fig.5) pulling the frame.
  • Page 49 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL 7. Connect Wire of Indoor Unit 8. Bind up Pipe (1) Open the panel, remove the screw on the wiring cover and (1) Bind up the connection pipe, power cord and drain hose then take down the cover.(As show in Fig.11) with the band.(As show in Fig.14)

  • Page 50: Installation Of Outdoor Unit

    INNOVAIR INVERTER PRESTIGE SERVICE MANUAL SERVICE MANUAL Installation of Outdoor Unit Refer to the following table for wrench moment of force: Hex nut diameter(inch) Tightening torque(ft·Ibf) 1. Fix the Support of Outdoor Unit(Select it according to Φ1/4 11.10~14.75 the actual installation situation) Φ3/8...

  • Page 51: Vacuum Pumping And Leak Detection

    INNOVAIR INVERTER PRESTIGE SERVICE MANUAL Note: Check after Installation and Test (1) The through-wall height of drain hose shouldnt be higher Operation than the outlet pipe hole of indoor unit.(As show in Fig.25) (2) Slant the drain hose slightly downwards. The drain hose 1.

  • Page 52: Error Code List

    SERVICE MANUAL SERVICE MANUAL Troubleshooting for KIN310C2V31 , KIN413C2V31 Error Code List Display of lamp (the times of blinking) Display of Name of malfunction Indoor Outdoor indoor unit Anti-freezing protection Block or Low pressure of refrigerant system Compressor exhaust high temperature protection...

  • Page 53: Troubleshooting For Main Malfunction

    INNOVAIR INVERTER PRESTIGE SERVICE MANUAL Troubleshooting for Main Malfunction ●Indoor unit: 1. Malfunction of Temperature Sensor F1, F2 Main detection points: ● Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? ● Is there short circuit due to trip-over of the parts? ●...
  • Page 54 SERVICE MANUAL SERVICE MANUAL 2. Malfunction of Blocked Protection of IDU Fan Motor H6 Main detection points: ● SmoothlyIs the control terminal of PG motor connected tightly? ● SmoothlyIs the feedback interface of PG motor connected tightly? ● The fan motor cant operate? ●...
  • Page 55 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL 3. Malfunction of Protection of Jumper Cap C5 Main detection points: ● Is there jumper cap on the mainboard? ● Is the jumper cap inserted correctly and tightly? ● The jumper is broken? ● The motor is broken? ●...
  • Page 56 SERVICE MANUAL SERVICE MANUAL 4. Malfunction of Zero-crossing Inspection Circuit Malfunction of the IDU Fan Motor U8 Main detection points: ● Instant energization afte de-energization while the capacitordischarges slowly? ● The zero-cross detectioncircuit of the mainboard is defined abnormal? Malfunction diagnosis process: Start Turn power off for 1minute,the turn...
  • Page 57 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL 5. Malfunction of detecting plate(WIFI) JF Start check if the connection wire are correctly connected detecting Replace the plate with the same model Is malfunction eliminated Replace the mainboard with the same model The end...
  • Page 58 SERVICE MANUAL SERVICE MANUAL 6. Malfunction of Insufficient fluorine protection F0 （4） Troubleshooting for F0 malfunction Heat exchangers are Clean the heat exchangers and remove Malfunction is too dirty or the air inlet/outlet eliminated. blockage of air inlet/outlet. is blocked. Compressor doesn't work Malfunction is Make compressor run normally.
  • Page 59 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL ●Outdoor unit: (1) Capacitor charge fault (Fault with outdoor unit) (AP1 below refers to the outdoor control panel) Main Check Points: ●Use AC voltmeter to check if the voltage between terminal L and N on the wiring board is within 210VAC~240VAC.
  • Page 60 SERVICE MANUAL SERVICE MANUAL (2) IPM Protection, Out-of-step Fault, Compressor Phase Overcurrent (AP1 below refers to the outdoor control panel) Main check points: ●Is the connection between control panel AP1 and compressor COMP 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?
  • Page 61 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL Energize and switch on Use AC voltmeter If the voltage Check the supply to measure the IPM protection between terminal L voltage and voltage between occurs after the and N on wiring terminal L and N...
  • Page 62 SERVICE MANUAL SERVICE MANUAL (3) High temperature and overload protection diagnosis (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: ●Is outdoor ambient temperature in normal range? ●Are the outdoor and indoor fans operating normally? ●Is the heat dissipation environment inside and outside the unit good? Fault diagnosis process: Overheat and high temperature protection...
  • Page 63 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL (4) Start-up failure (following AP1 for outdoor unit control board) Mainly detect: ●Whether the compressor wiring is connected correct? ●Is compressor broken? ●Is time for compressor stopping enough? Fault diagnosis process: Power on the unit...
  • Page 64 SERVICE MANUAL SERVICE MANUAL (5) Out of step diagnosis for the compressor (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: ●Is the system pressure too high? ●Is the input voltage too low? Fault diagnosis process: Out of step occurs in Out of step occurs once the operation...
  • Page 65 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL (6) Overload and air exhaust malfunction diagnosis (following AP1 for outdoor unit control board) Mainly detect: ●Is the PMV connected well or not? Is PMV damaged? ●Is refrigerant leaked? Fault diagnosis process: 20 minutes after the...
  • Page 66 SERVICE MANUAL SERVICE MANUAL (7) Power factor correct or (PFC) fault (a fault of outdoor unit) (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: ●Check if the reactor (L) of the outdoor unit and the PFC capacitor are broken Fault diagnosis process: Start Check wiring of the...
  • Page 67 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL (8) Communication malfunction: (following AP1 for outdoor unit control board) Mainly detect: ●Is there any damage for the indoor unit mainboard communication circuit? Is communication circuit damaged? ●Detect the indoor and outdoor units connection wire and indoor and outdoor units inside wiring is connect well or not, if is there any...
  • Page 68 SERVICE MANUAL SERVICE MANUAL 9.3 Troubleshooting for Normal Malfunction 1. Air Conditioner Cant be Started Up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether its due to power failure. If yes, No power supply, or poor After energization, operation indicator isnt bright wait for power recovery.
  • Page 69 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL 4. ODU Fan Motor Cant Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Connect wires according to wiring diagram to Wrong wire connection, or poor Check the wiring status according to circuit make sure all wiring terminals are connected...
  • Page 70 SERVICE MANUAL SERVICE MANUAL 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 safety value. Touching the electrolytic capacitor within 20min after cutting the power will cause electric shock.
  • Page 71 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL Error Code List (Only for the mode with this function) Malfunction of detecting plate(WIFI )
  • Page 72 SERVICE MANUAL SERVICE MANUAL Complete unit Off 3s current and blink detection 13 times malfunction Off 3s Defrosting will occur in and blink heating mode.Compressor once will operate while indoor It’s the normal state (during fan will stop. blinking, ON 10s and Off 05s) w w w .
  • Page 73 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL...
  • Page 74 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL SERVICE MANUAL Troubleshooting for Main Malfunction ●Indoor unit: 1. Malfunction of Temperature Sensor F1, F2 Main detection points: ● Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? ● Is there short circuit due to trip-over of the parts? ●...
  • Page 75 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL 2. Malfunction of Blocked Protection of IDU Fan Motor H6 Main detection points: ● SmoothlyIs the control terminal of PG motor connected tightly? ● SmoothlyIs the feedback interface of PG motor connected tightly? ● The fan motor cant operate? ●...
  • Page 76 SERVICE MANUAL SERVICE MANUAL 3. Malfunction of Protection of Jumper Cap C5 Main detection points: ● Is there jumper cap on the mainboard? ● Is the jumper cap inserted correctly and tightly? ● The jumper is broken? ● The motor is broken? ●...
  • Page 77 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL 4. Communication malfunction E6 Start Cut off power supply. Check if connection line of IDU and ODU and the wire inside electric box are correctly connected. Connect the line Correct connection? according to Malfunction eliminated? wiring diagram.
  • Page 78 SERVICE MANUAL SERVICE MANUAL 5. Malfunction of detecting plate(WIFI) JF Start check if the connection wire are correctly connected detecting Replace the plate with the same model Is malfunction eliminated Replace the mainboard with the same model The end w w w . i n n o v a i r . c o m...
  • Page 79 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL ●Outdoor unit: Key detection point "Test point NO." Test point Related elements Test value under normal condition Test 1 Between A and C Neutral wire ,live wire 160V-265V Test 2 Between B and C Neutral wire ,live wire...
  • Page 80 SERVICE MANUAL SERVICE MANUAL 1.Capacity charging malfunction (outdoor unit malfunction) (AP1 below is control board of outdoor unit) Main detection point: ● Detect if the voltage of L and N terminal of wiring board is between 210AC-240AC by alternating voltage meter; ●...
  • Page 81 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL 2.IPM protection, desynchronizing malfunction, phase current of compressor is overcurrent (AP1 below is control board of outdoor unit) Main detection point: ● If control board AP1 and compressor COMP is well connected? If they are loosened? If the connection sequence is correct? ●...
  • Page 82 SERVICE MANUAL SERVICE MANUAL Energize and switch on Use AC voltmeter If the voltage Check the supply to measure the IPM protection between terminal L voltage and voltage between occurs after the and N on wiring machine has run for terminal L and N restore it to board XT is within...
  • Page 83 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL 3.Diagnosis for anti-high temperature, overload protection (AP1 below is control board of outdoor unit) Main detection point: ● If the outdoor ambient temperature is in normal range; ● If the indoor and outdoor fan is running normal;...
  • Page 84 SERVICE MANUAL SERVICE MANUAL 4.Diagnosis for failure start up malfunction (AP1 below is control board of outdoor unit) Main detection point: ● If the compressor wiring is correct? ● If the stop time of compressor is enough? ● If the compressor is damaged? ●...
  • Page 85 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL 5. Diagnosis for compressor synchronism (AP1 below is control board of outdoor unit) Main detection point: ● If the system pressure is over-high? ● If the work voltage is over-low? Malfunction diagnosis process: Synchronism Synchronism after...
  • Page 86 SERVICE MANUAL SERVICE MANUAL 6.Diagnosis for overload and discharge malfunction (AP1 below is control board of outdoor unit) Main detection point: ● If the electron expansion valve is connected well? Is the expansion valve damaged? ● If the refrigerant is leakage? ●...
  • Page 87 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL 7.Communication malfunction (AP1 below is control board of outdoor unit) Main detection point: ● Check if the connection wire and the built-in wiring of indoor and outdoor unit is connected well and no damaged; ● If the communication circuit of indoor mainboard is damaged? If the communication circuit of outdoor mainboard (AP1) is dam-...
  • Page 88 SERVICE MANUAL SERVICE MANUAL 8.Diagnosis process for outdoor communication circuit Start Test voltage value with Test 10 position in diagram with voltage meter Number jumping Test voltage value with Test 13 position in diagram with voltage meter Number jumping Outdoor unit malfunction Test voltage value with Test...
  • Page 89 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL Troubleshooting for Normal Malfunction 1. Air conditioner cant be started up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether its due to power failure. If yes, No power supply, or poor After energization, operation indicator isnt bright wait for power recovery.
  • Page 90 SERVICE MANUAL SERVICE MANUAL 4. ODU fan motor cant operate Possible causes Discriminating method (air conditioner status) Troubleshooting Connect wires according to wiring diagram to Wrong wire connection, or poor Check the wiring status according to circuit make sure all wiring terminals are connected connection diagram firmly...
  • Page 91 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL Removal Procedure Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the for KIN310C2V31 , KIN413C2V31 refrigerant completely before removal. Removal Procedure of Indoor Unit Step Procedure 1.
  • Page 92 SERVICE MANUAL SERVICE MANUAL Step Procedure 4. Remove detecting plate and electric box cover 2 Screw Electric box cover2 Remove the screw fixing detecting plate and then remove the detecting plate. Detecting plate Note:The position of detection board(WIFI) Screw may be different for -different models. for 09K Detecting plate Remove the screw fixing electric box...
  • Page 93 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL Step Procedure 7. Remove electric box assy Screw Loosen the connection clasps between shield cover of electric box sub-assy and Clasps electric box, and then remove the shield cover of electric box sub-assy. Remove the screw fixing electric box assy .
  • Page 94 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL SERVICE MANUAL Step Procedure Instruction: Some wiring terminal of this product is with lock catch and other devices. circlip The pulling method is as below: holder 1.Remove the soft sheath for some terminals at first, hold the circlip and then pull out the terminals.
  • Page 95 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL Step Procedure 9. Remove motor and cross flow blade Remove the screws fixing motor clamp Screws and then remove the motor clamp. Motor clamp Cross flow Remove the screws at the connection Screw Motor place of cross flow blade and motor; lift...

  • Page 96: Removal Procedure Of Outdoor Unit

    INNOVAIR INVERTER PRESTIGE SERVICE MANUAL 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. NOTE: Take GWH12QC-D3DNA6E/O for example.
  • Page 97 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL 3.Remove grille and front panel Remove connection screws between the front grille and the front panel. 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.
  • Page 98 SERVICE MANUAL SERVICE MANUAL 6.Remove electric box assy Electric box assy Remove the 2 screws fixing the cover of elec- tric box. Lift to remove the cover. Loosen the wire and disconnect the terminal. Lift to re- move the electric box assy. 7.Remove 4-way valve assy Unscrew the fastening nut of the 4-way Valve 4-way Valve Assy...
  • Page 99 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL 9.Remove motor and motor support Motor support Remove the 4 tapping screws fixing the motor. Pull out the lead-out wire and remove the Motor motor. Remove the 2 tapping screws fixing the motor support. Lift motor support to re- move it.
  • Page 100 SERVICE MANUAL SERVICE MANUAL 11.Remove Compressor Remove the 2 screws fixing the gas valve. Unsolder the welding spot connecting 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 Liquid valve screws fixing liquid valve.

  • Page 101: Appendix

    SERVICE MANUAL Appendix: Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit Fahrenheit Fahrenheit display Fahrenheit display Fahrenheit display Fahrenheit Celsius （℃） Celsius （℃） Celsius （℃） temperature temperature temperature （℉）...

  • Page 102: Appendix 3: Pipe Expanding Method

    SERVICE MANUAL SERVICE MANUAL Appendix 3: Pipe Expanding Method Pipe Note: Pipe cutter Improper pipe expanding is the main cause of refrigerant leakage.Please expand the pipe according to the following steps: Leaning Uneven Burr A:Cut the pip ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ●...

  • Page 103: Appendix 4: List Of Resistance For Temperature Sensor

    INNOVAIR INVERTER PRESTIGE SERVICE MANUAL Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor(15K) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) -2.2 138.1 18.75 138.2 3.848 208.4 1.071 -0.4 128.6 69.8...
  • Page 104 SERVICE MANUAL SERVICE MANUAL Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) -2.2 181.4 25.01 138.2 5.13 208.4 1.427 -0.4 171.4 69.8 23.9 4.948 210.2 1.386 162.1 71.6 22.85 141.8 4.773 1.346...
  • Page 105 SERVICE MANUAL Resistance Table of Discharge Temperature Sensor for Outdoor(50K) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) -20.2 853.5 120.2 18.34 190.4 4.754 -18.4 799.8 51.8 93.42 17.65 192.2 4.609 -16.6 53.6 89.07 123.8 16.99 4.469 -14.8 703.8 55.4 84.95 125.6 16.36...
  • Page 106 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL SERVICE MANUAL 11. Removal Procedure Warning: Be sure to wait for a minimum for KIN321C2V31 , KIN824C2V31 of 20 minutes after turning off all power supplies and discharge the refrigerant 11.1 Removal Procedure of Indoor Unit completely before removal.
  • Page 107 SERVICE MANUAL Electric box cover 2 4. Remove electric box cover 2 and detecting plate(WIFI) Screw Remove the screws on the electric box cover 2 and detecting plate(WIFI), then remove the electric box cover 2 and Screws detecting plate(WIFI). Detecting plate (WIFI) Loosen the connection clasps between front case sub-assy and bottom case.
  • Page 108 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL SERVICE MANUAL Indoor tube temperature s ensor Cut off the wire binder and pull out the indoor tube temperature sensor. Screw off one grounding screw. Main Remove the wiring terminals of motor and board stepping motor.
  • Page 109 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL G roove R ear case ass y 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 C lasp rear case assy.
  • Page 110 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL SERVICE MANUAL w w w . i n n o v a i r . c o m...
  • Page 111 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL 11.2 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. NOTE: Take GWH24QE-D3DNA6E/O for example.
  • Page 112 SERVICE MANUAL SERVICE MANUAL Steps Procedure Remove the screws connecting the outer case with motor support, isolation plate and chassis; lift the outer case upwards; loosen the clasps of outer case with right side plate and left side plate, and then remove the outer case.
  • Page 113 SERVICE MANUAL Steps Procedure 4. Remove axial flow blade Remove the nut fixing axial flow blade and then remove the blade. axial flow fan motor support Remove the 6 screws fixing the motor and then remove the motor. Remove the 2 screws connecting the motor support and chassis, and then loosen the stopper to remove the motor support.
  • Page 114 SERVICE MANUAL SERVICE MANUAL Steps Procedure 6. Remove the soundproof sponge Tear off the sticking stripe and then remove the soundproof sponge. soundproof sponge 7. Remove isolation plate Remove the 2 screws connecting the isolation plate and condenser side plate; remove the 3 screws connecting the isolation plate and chassis, and then remove the isolation plate.
  • Page 115 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL Steps Procedure 9. Remove compressor compressor Remove the 3 foot nuts fixing compressor and then lift the compressor upwards to remove the compressor and damping cushion. Note: Keep the ports of discharge pipe and suction pipe from foreign objects.
  • Page 116 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL SERVICE MANUAL Appendix: Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit Fahrenheit Fahrenheit display Fahrenheit display Fahrenheit display Fahrenheit Celsius （℃） Celsius （℃）...
  • Page 117 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL Appendix 3: Pipe Expanding Method Pipe Note: Pipe cutter Improper pipe expanding is the main cause of refrigerant leakage.Please expand the pipe according to the following steps: Leaning Uneven Burr A:Cut the pip ● Confirm the pipe length according to the distance of indoor unit and outdoor unit.
  • Page 118 SERVICE MANUAL SERVICE MANUAL Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) -2.2 138.1 18.75 138.2 3.848 208.4 1.071 -0.4 128.6 69.8 17.93 3.711...
  • Page 119 INNOVAIR INVERTER PRESTIGE SERVICE MANUAL Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) -2.2 181.4 25.01 138.2 5.13 208.4 1.427 -0.4 171.4 69.8 23.9 4.948 210.2 1.386 162.1 71.6 22.85...
  • Page 120 SERVICE MANUAL SERVICE MANUAL Resistance Table of Discharge Temperature Sensor for Outdoor(50K) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) -20.2 853.5 120.2 18.34 190.4 4.754 -18.4 799.8 51.8 93.42 17.65 192.2 4.609 -16.6 53.6 89.07 123.8 16.99 4.469 -14.8 703.8 55.4 84.95...

This manual is also suitable for:

Kin321c2v31Kin413c2v31Kin824c2v31

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