Gree GVH24AK-K3DNC6A Service Manual Download Page 11

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Technical Information

Service Manual

4. Refrigerant System Diagram

Connection pipe specification:
Liquid pipe:1/4" (6mm)
Gas pipe:5/8" (16mm)

Indoor unit

Outdoor unit

COOLING

HEATING

4-Way valve

Discharge

Suction

Heat

exchanger

(evaporator)

Heat

exchanger

(condenser)

Valve

Liquid pipe

side

Gas pipe

side

Strainer Electron

expansion

valve

Strainer

Capillary

Accumlator

Compressor

Liquid pipe:1/4" (6mm)
Gas pipe:3/8" (9.52mm)

Summary of Contents for GVH24AK-K3DNC6A

Page 1: ...GREE ELECTRIC APPLIANCES INC OF ZHUHAI Change for Life Service Manual Model GVH24AK K3DNC6A Refrigerant R410A...

Page 2: ...B Printed Diagram 11 6 Function and Control 15 6 1 Function Buttons and Displayer 15 6 2 Remote Controller Introduction 17 6 3 Operation Method 21 6 4 Brief Description of Modes and Functions 22 Part...

Page 3: ...nd Parts List 62 10 1 Indoor Unit 62 10 2 Outdoor Unit 65 11 Removal Procedure 67 11 1 Removal Procedure of Indoor Unit 67 11 2 Removal Procedure of Outdoor Unit 72 Appendix 77 Appendix 1 Reference Sh...

Page 4: ...1 Technical Information Service Manual 1 Summary Part Technical Information Indoor Unit GVH24AK K3DNC6A I Outdoor Unit Remote Controller SAA1FB3 GVH24AK K3DNC6A O...

Page 5: ...2 Indoor Unit Indoor Unit Model GVH24AK K3DNC6A I Indoor Unit Product Code CH074N00100 Fan Type Cross flow Fan Diameter Length DXL mm 106X961 Cooling Speed SH H MH M ML L SL r min 1140 1050 950 850 75...

Page 6: ...oil Length LXDXW mm 985X38 1X748 Fan Motor Speed rpm 780 740 710 680 Fan Motor Power Output W 90 Fan Motor RLA A 0 39 Fan Motor Capacitor F Outdoor Unit Air Flow Volume m3 h 4000 Fan Type Axial flow F...

Page 7: ...sor speed rps 11 10 9 8 7 6 5 4 3 2 1 0 Compressor speed rps Conditions Indoor DB27 C WB19 C Indoor air flow High Pipe length 5m Conditions Indoor DB20 C WB15 C Indoor air flow High Pipe length 5m Out...

Page 8: ...outdoor unit Inlet and outlet pipe temperature of heat exchanger Fan speed of indoor unit Fan speed of outdoor unit Compressor frequency Hz Indoor Outdoor P MPa T1 C T2 C 20 7 6 24K 2 0 to 2 3 in 75 8...

Page 9: ...6 Technical Information Service Manual 3 Outline Dimension Diagram 3 1 Indoor Unit Unit mm 400 462 1842...

Page 10: ...7 Technical Information Service Manual 3 2 Outdoor Unit Unit mm 1000 790 395 610 920 370 427...

Page 11: ...e 1 4 6mm Gas pipe 5 8 16mm Indoor unit Outdoor unit COOLING HEATING 4 Way valve Discharge Suction Heat exchanger evaporator Heat exchanger condenser Valve Valve Liquid pipe side Gas pipe side Straine...

Page 12: ...1 1 3 32 5 7 7 50 1 2 203 57 1 57 5220 7 03 6 1625 6 1625 78 7 03 83 2 1 67 3 02725 3 0 1 2 5 5 1 02 8 75 3 1 1 1 3 272 75 6 7 3 272 75 6 7 1 1 02725 0 1 1 1 5 1 20 8 8 1 35 6685 1 5 725 75 7 5 1 1 1...

Page 13: ...UPLQDO ZKHQ WKH PDFKLQH LV UXQQLQJ VWRSSLQJ RU KDV EHHQ SRZHUHG RII IRU OHVV WKDQ PLQXWHV WR SUHYHQW WKH ULVN RI HOHFWULF VKRFN 51 1 7B6 1625 B 1 8 3 1 3 7 1 5 9 8 8 8 5 8 9 3 3 20B 11 5 57 57 57 5 29...

Page 14: ...gate plate motor 9 Right lower gate plate motor 10 Needle stand for connecting display board 11 Needle stand of temperature sensor 12 Photoelectric switch 2 13 Photoelectric switch 1 14 Terminal of li...

Page 15: ...Board Display modules Left and right swing motor 1 Left and right swing motor 2 Needle stand for connecting mainboard Electric heating belt Electric heating belt Checkout console WIFI radio frequency...

Page 16: ...13 Technical Information Service Manual Bottom view...

Page 17: ...Name 1 3 phase line for compressor 5 DC fan unit 9 Ground lead 2 Needle stand for overcurrent line of compressor 6 Needle stand of 2 way valve 10 Neutral wire 3 Needle stand for temperature sensor 7...

Page 18: ...ol button Press this button turn on the cooling mode 7 Function button Under unit on status press Function button to switch function in the sequence of auto dry fan eco fan setting room temp timer Whe...

Page 19: ...s Slide Bar Function Buttons and Displayer Display 1 Set Display set temperature 2 Room Temp Display indoor ambient temperature 3 Defrost When defrost icon is bright it means the unit is in defrosting...

Page 20: ...oner The matching method is as below After energization press X Fan E heater button for more than 3s within 2m from the air conditioner and remote controller and air conditioner will enter into matchi...

Page 21: ...display icon or turn off not display icon up down swing function Under OFF status press button and button simultaneously can switch between simple swing mode and fixed swing mode During switching time...

Page 22: ...or button to adjust timer setting time will change quickly if holding or button Time setting range is 0 5 24hours Press this button again to confirm timer setting and the characters of HOUR ON OFF wil...

Page 23: ...orrect Do not mix to use new and old batteries or different type batteries Otherwise it may cause the remote controller invalid 3 Reinstall the cover of battery box This remote controller can display...

Page 24: ...r for swing method for details Press button on remote controller can turn on or turn off left right swing Press this button once to turn on swing function and press it again to turn off swing function...

Page 25: ...2 Swing function Swing function is different for different models As for up down swing and left right swing the swing angle will be different for different structure and motor 3 Turbo Under heating or...

Page 26: ...nder power on status to enter into cooling mode 10 3 Heating button Press this button under power on status to enter into heating mode 10 4 Scroll bar 10 4 1 If not setting the function when sliding t...

Page 27: ...and last for 6 minutes and the frequency has decreased to the lower limit the unit will stop operation when reaching to temperature point 6 1 3 Otherwise the unit operates at the original operating st...

Page 28: ...t will resume to operate after the compressor stops for 3 minutes 13 3 If the unit stops operation due to overcurrent protection for 6 times it will not resume to operate until pressing ON OFF button...

Page 29: ...unit adequately grounded The grounding wire can t be used for other purposes 6 Must apply protective accessories such as protective boards cable cross loop and wire clip 7 The live wire neutral wire a...

Page 30: ...ng tape 4 Electroprobe 7 Electronic leakage detector 10 Pipe pliers pipe cutter 2 Screw driver 5 Universal meter 8 Vacuum pump 11 Pipe expander pipe bender 3 Impact drill drill head electric drill 6 T...

Page 31: ...r of the room 4 Select a location where connection pipe can be led to outdoor conveniently 5 Select a location where air inlet and outlet won t be blocked 6 Retain sufficent space for maintenance and...

Page 32: ...y leakage protection switch and air switch with sufficient capacity must be included in the fixed circuit 2 The power must adopt rated voltage and specialized circuit of air conditioner 3 The diameter...

Page 33: ...e to the following places a Water pipe b Gas pipe c Drainage pipe d The place where is unreliable suggested by the professional When connecting pipeline and wires please remove top cover and left righ...

Page 34: ...nection pipe through the exit pipe hoe and then connect the connection pipe As show in Fig 14 and Fig 15 8 The indoor part of drainage pipe should be wrapped with heat insulating materials thickness s...

Page 35: ...screw down the test wire of screw take out the test wire from the cable cross hole As show in Fig 19 3 Thread the power connection wire through the cable cross hole from the cable cross hole 4 Well c...

Page 36: ...ve the wire clamp connect the power connection to the wiring terminal and then fix it The wire distribution must be in accordance with the indoor unit 3 Fix the power connection wire with wire binder...

Page 37: ...stallation Test operation No Items to be checked Possible malfunction 1 Has the unit been installed firmly The unit may drop shake or emit noise 2 Have you done the refrigerant leakage test It may cau...

Page 38: ...35 Installation and Maintenance Service Manual 9 Maintenance 9 1 Key Test Point...

Page 39: ...ytic capacitor C708 in I C708 15V power supply DC 14 5V 15 6V Test7 Two ends of electrolytic capacitor C715 in J C715 12V power supply DC 12V 13V Test8 Two ends of electrolytic capacitor C710 in K C71...

Page 40: ...ron into the two points of discharging positions it will cause spark at the begging of contacting keep about 30s and then discharge the electrolytic capacitor After discharging and before maintenance...

Page 41: ...eating operation all loads stop operation The circuit on control board of outdoor unit has malfunction Replace the control board of outdoor unit 6 Communication malfunction between IDU and ODU During...

Page 42: ...ecreases Refer to malfunction analysis overload high temperature resistant 17 Defrosting It operates under heating mode Compressor operates while indoor fan stops operation Normal 18 Overload protecti...

Page 43: ...door unit 29 Charging malfunction of capacitor During cooling and drying operation compressor stops while indoor fan operates During heating operation all loads stop operation Refer to malfunction ana...

Page 44: ...r fan operates all loads stop operation During heating operation all loads stop operation Connection wires of DC fan and outdoor unit is loose If there s no malfunction replace the control boar 38 Ele...

Page 45: ...ads stop operation PFC peak current is too high 3 Malfunction Checkup Flow First define the malfunction according to the indicator of IDU ODU and list for malfunctions always stuck on the electric box...

Page 46: ...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 Serv...

Page 47: ...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 protecti...

Page 48: ...sor stopping enough Fault diagnosis process No Yes No No Yes Yes Yes No Power on the unit Is stop time of the compressor longer than 3 minutes Restart it up after 3 minutes Does startup fail Are the w...

Page 49: ...nnected 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...

Page 50: ...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 a...

Page 51: ...equipment 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...

Page 52: ...voltage of Test 10 in the fig with voltage meter Numerical value changes Measure voltage of Test 13 in the fig with voltage meter Numerical value changes Measure voltage of Test 11 in the fig with vo...

Page 53: ...e five positions Pull out these three wiring terminals Do not pull the electric wire when pulling out the terminals You can pull it out by pressing the lock catch on the pin Overload of com pressor OV...

Page 54: ...for compressor please refer to the top cover of compressor Zero wire and live wire communication wire Brown live wire AC_L Blue zero wire N Black communication wire COM INTER EMI filtering magnetic r...

Page 55: ...russ the excess part of wires of 2 way valve and electronic expansion valve and then arrange the wires from the lower buckle of electric box to enter into the electric box Wire arrangement inside the...

Page 56: ...ontroller is horizontally placed in the corresponding slot in the electric box and the mainboard has no distortion Use screw to fix the magnetic ring Connect the terminals of zero wire live wire and c...

Page 57: ...inboard AP1 of controller please refer to the connecting method of terminals in the previous chapter Fix the screws in these five positions Cover the electric box cover make sure that the electric box...

Page 58: ...lling out the terminal otherwise the terminal may be loose or discon nected 3 The terminal is with buckle when it is correctly connected you will hear a click When it is correctly connected the termin...

Page 59: ...two diodes of rectifier bridge are normal b c Put the red pole of universal meter onto the end of rectifier bridge as shown in the 4 end of the above picture and then use black pole to touch the 2 an...

Page 60: ...dge is damaged Notices during the measurement please make sure that the battery of universal meter is sufficient and the pole has touched the end there may be glue in the surface of mainboard for damp...

Page 61: ...alue of universal meter respectively if the value is within 0 3V 0 8V it means this part is normal Put the black pole to this P end Use the black pole to touch the 3 phase end of compressor respective...

Page 62: ...al meter to check Process a Put the black pole of universal meter onto any end of IGBT use the red pole to touch another two ends of IGBT respectively if the re sistance is infinity over 10 mega ohm i...

Page 63: ...od for details Malfunction of compressor Compressor can t operate Refer to point 5 of maintenance method for details 9 3 Troubleshooting for Normal Malfunction 1 Air Conditioner Can t be Started Up 2...

Page 64: ...n 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 Can t Operate Possible causes Discriminatin...

Page 65: ...62 Installation and Maintenance Service Manual 10 Exploded View and Parts List 10 1 Indoor Unit The component is only for reference please refer to the actual product...

Page 66: ...ce 26114511 2 19 Connection Plate 26114397 1 20 Lead Breeze Module 10104088 1 21 Rotating Device Assy 10544052 1 22 Rotating Device Assy 10544051 1 23 The Breeze Way Parts 10104087 1 24 Water Tray 2 2...

Page 67: ...l 22414009P 1 48 Support Plate 01794036 1 49 Remote Controller 30510512 1 50 Socket 51 4 Temperature Sensor 3900013714 1 52 Connecting Cable 40020317 1 53 Connecting Cable 40020789 1 54 Support Plate...

Page 68: ...ation and Maintenance Service Manual 10 2 Outdoor Unit The component is only for reference please refer to the actual product 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28...

Page 69: ...rt Sub Assy 01705025 1 14 Condenser Support Plate 01175092 1 15 Condenser Assy 01103000252 1 16 Rear Grill 01475013 1 17 Wiring Clamp 26115004 1 18 Temperature Sensor 3900030901 1 19 Electronic Expans...

Page 70: ...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 Step 1 Axonometric drawing of indoor uni...

Page 71: ...upper position of purifier module and then draw out the purifier module and filter a Under closing status of large door plank first unscrew the 2 spring screws and then under open status of large doo...

Page 72: ...Lift the door planks and then remove them out Unscrew 1 screw which is for fixing the press plate large and small tube and then remove them out Unscrew 1 screw which is for fixing the electric box cov...

Page 73: ...ont door plank and then lift the front door plank assy to remove them out Screws Unscrew the 4 screws which are for fixing the water tray 2 and then remove the water tray 2 Unscrew the 7 screws which...

Page 74: ...e the evaporator assy First unscrew the 6 screws which are for fixing the air duct and then lift the air duct up to separate the buckle from the slot and then remove it out Unscrew the 6 screws which...

Page 75: ...e and then remove the top panel 2 Remove grille and panel Remove the 2 screws connecting the grille and the panel and then remove the grille top pane grille Handle Step Procedure Valve cover Twist off...

Page 76: ...ront side panel the screws connecting the panel with the chassis and the motor support and then remove the panel 3 Remove and right side plate Right side plate Remove the screws connecting the right s...

Page 77: ...erminals and then pull the electric box upwards to remove it Remove the 4 tapping screws fixing the motor disconnect the leading wire insert of the motor and then remove the motor Remove the 2 tapping...

Page 78: ...ireproof electric box 7 Remove chassis sub assy Isolation sheet and Isolation sheet Remove the 3 screws fixing the isolationsheet and then remove the Isolation sheet 8 Remove 4 way valve assy Discharg...

Page 79: ...ove the compressor Remove the screws connecting the support condenser and condenser assy and then remove the support condenser 9 Remove compressor compressor 10 Remove condenser sub assy a support b D...

Page 80: ...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 6...

Page 81: ...llowing 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...

Page 82: ...66 88 33 10 63 72 2 439 111 0 737 5 63 46 34 10 2 73 2 358 112 0 717 4 60 23 35 9 779 74 2 28 113 0 697 3 57 18 36 9 382 75 2 206 114 0 678 2 54 31 37 9 003 76 2 133 115 0 66 1 51 59 38 8 642 77 2 06...

Page 83: ...983 5 84 61 34 13 59 73 3 144 112 0 956 4 80 31 35 13 04 74 3 04 113 0 93 3 76 24 36 12 51 75 2 94 114 0 904 2 72 41 37 12 76 2 844 115 0 88 1 68 79 38 11 52 77 2 752 116 0 856 0 65 37 39 11 06 78 2 6...

Page 84: ...62 11 32 101 3 22 15 362 9 24 51 41 63 10 93 102 3 13 14 342 8 25 49 19 64 10 54 103 3 04 13 323 9 26 47 08 65 10 18 104 2 96 12 306 2 27 45 07 66 9 83 105 2 87 11 289 6 28 43 16 67 9 49 106 2 79 10 2...

Page 85: ...Zhuhai Guangdong China 519070 Tel 86 756 8522218 Fax 86 756 8669426 Email gree gree com cn Http www gree com HONG KONG GREE ELECTRIC APPLIANCES SALES LIMITED Add Unit 2612 26 F Miramar Tower 132 Natha...

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