Gree VIREO GEN3 3VIR09HP115V1A Service Manual
  1. Manuals
  2. Brands
  3. Gree Manuals
  4. Heat Pump
  5. VIREO GEN3 3VIR09HP115V1A
  6. Service manual

Gree VIREO GEN3 3VIR09HP115V1A Service Manual

Single-zone, heat pump system
Hide thumbs
Table of Contents

Advertisement

Quick Links

Single-Zone, Heat Pump System
115V and 230V, 9 - 24K Btu/h
Thank you for choosing our product.
Please read this Installation & Owner's Manual carefully before
operation and retain it for future reference.
If you lose this Manual, please contact your local distributor or
visit www.greecomcomfort.com/resources now to download and
file the electronic version.
SERVICE
MANUAL
CAT N O : G R E E _ V I R E O G E N 3 _ S ER V I CE _ 0 9 0 9 2 1

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the VIREO GEN3 3VIR09HP115V1A and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Gree VIREO GEN3 3VIR09HP115V1A

Summary of Contents for Gree VIREO GEN3 3VIR09HP115V1A

  • Page 1 SERVICE MANUAL Single-Zone, Heat Pump System 115V and 230V, 9 - 24K Btu/h Thank you for choosing our product. Please read this Installation & Owner’s Manual carefully before operation and retain it for future reference. If you lose this Manual, please contact your local distributor or visit www.greecomcomfort.com/resources now to download and file the electronic version.

  • Page 2: Table Of Contents

    6. Function and Control .......... 29-38 6.1 Remote Controller Introduction of YAP1F7F(WiFi) ......29-33 6.2 GREE+ App Operation Manual ............... 34 6.3 Ewpe Smart App Operation Manual ............35 6.4 Brief Description of Modes and Functions ........36-38 Part II : Installation and Maintenance .....
  • Page 3 Service Manual 8.5 Installation of Indoor Unit ..............44-46 8.6 Installation of Outdoor unit ...............47-48 8.7 Vacuum Pumping and Leak Detection ..........48 8.8 Check after Installation and Test operation .......... 48 9. Maintenance ............49-66 9.1 Error Code List ...................49-55 9.2 Procedure of Troubleshooting ............56-68 9.3 Troubleshooting for Normal Malfunction .........69-70 10.

  • Page 4: Part I : Technical Information

    1. Summary Service Manual Indoor Unit: A1 Panel: Outdoor Unit: 3VIR09HP230V1AO 3VIR12HP230V1AO 3VIR09HP115V1AO 3VIR12HP115V1AO 3VIR18HP230V1AO 3VIR24HP230V1AO Remote Controller: YAP1F7F(WiFi) ON/OFF MODE I FEEL T-ON T-OFF TEMP CLOCK LIGHT WiFi SLEEP Model list: Indoor product Outdoor Remote Model Product code Indoor model Outdoor model code product code...

  • Page 5: Specifications

    2. Specifications Service Manual 2.1 Specification Sheet 3VIR09HP115V1A Model Product Code CB385005800 Rated Voltage Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 9100 Heating Capacity 10000 Cooling Power Input Heating Power Input Cooling Power Current 6.43 Heating Power Current 7.42 Rated Input...
  • Page 6 2. Specifications Service Manual Outdoor Unit Model 3VIR09HP115V1AO Outdoor Unit Product Code CB385W05800 ZHUHAI LANDA Compressor Manufacturer COMPRESSOR CO.,LTD Compressor Model QXF-B103zF190A Compressor Oil FW68DA Compressor Type Rotary Compressor LRA. Compressor RLA 12.50 Compressor Power Input Compressor Overload Protector HPC115/95U1 KSD115ºC Throttling Method Electron expansion valve Set Temperature Range...
  • Page 7 2. Specifications Service Manual 3VIR09HP230V1A Model Product Code CB385002900 Rated Voltage 208/230 Power Rated Frequency Supply Phases Power Supply Mode outdoor Cooling Capacity Btu/h 9100 Heating Capacity 3224 Cooling Power Input Heating Power Input Cooling Power Current Heating Power Current Rated Input 1650 Rated Cooling Current...
  • Page 8 2. Specifications Service Manual Outdoor Unit Model 3VIR09HP230V1AO Outdoor Unit Product Code CB385W02900 ZHUHAI LANDA Compressor Manufacturer COMPRESSOR CO.,LTD Compressor Model QXF-B103zF190A Compressor Oil FW68DA or equivalent Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input Compressor Overload Protector HPC115/95U1 KSD115ºC Throttling Method Capillary...
  • Page 9 2. Specifications Service Manual 3VIR12HP115V1A Model Product Code CB385006200 Rated Voltage Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 12100 Heating Capacity 12100 Cooling Power Input Heating Power Input Cooling Power Current 8.26 Heating Power Current 8.53 Rated Input 1500...
  • Page 10 2. Specifications Service Manual Outdoor Unit Model 3VIR12HP115V1AO Outdoor Unit Product Code CB385W06200 ZHUHAI LANDA Compressor Manufacturer COMPRESSOR CO.,LTD Compressor Model QXF-B103zF190A Compressor Oil FW68DA Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input Compressor Overload Protector Throttling Method Electron expansion valve Set Temperature Range ºF...
  • Page 11 2. Specifications Service Manual Model 3VIR12HP230V1A Product Code CB385004000 Rated Voltage 208/230 Power Rated Frequency Supply Phases Power Supply Mode outdoor Cooling Capacity Btu/h 12000 Heating Capacity 12000 Cooling Power Input Heating Power Input Cooling Power Current 4.05 Heating Power Current 4.38 Rated Input 1500...
  • Page 12 2. Specifications Service Manual Outdoor Unit Model 3VIR12HP230V1AO Outdoor Unit Product Code CB385W04000 ZHUHAI LANDA Compressor Manufacturer COMPRESSOR CO.,LTD Compressor Model QXF-B103zF190A Compressor Oil FW68DA Compressor Type Rotary Compressor LRA. Compressor RLA 6.60 Compressor Power Input Compressor Overload Protector Throttling Method Electron expansion valve Set Temperature Range ºF...
  • Page 13 2. Specifications Service Manual Model 3VIR18HP230V1A Product Code CB385004400 Rated Voltage 208/230 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 18000 Heating Capacity 18200 Cooling Power Input 1384 Heating Power Input 1460 Cooling Power Current Heating Power Current Rated Input 2600 Rated Current...
  • Page 14 2. Specifications Service Manual Outdoor Unit Model 3VIR18HP230V1AO Outdoor Unit Product Code CB385W04400 ZHUHAI LANDA Compressor Manufacturer COMPRESSOR CO.,LTD Compressor Model QXA-B141zF030A Compressor Oil RB68EP Compressor Type Rotary Compressor LRA. Compressor RLA 10.4 Compressor Power Input 1440 1NT11L-6233 or KSD115 C or Compressor Overload Protector HPC115/95U1...
  • Page 15 2. Specifications Service Manual Model 3VIR24HP230V1A Product Code CB385002600 Rated Voltage 208/230 Power Rated Frequency Supply Phases Power Supply Mode outdoor Cooling Capacity Btu/h 22000 Heating Capacity 24000 Cooling Power Input 1692 Heating Power Input 1846 Cooling Power Current Heating Power Current Rated Input 3100 Rated Current...
  • Page 16 2. Specifications Service Manual Outdoor Unit Model 3VIR24HP230V1AO Outdoor Unit Product Code CB385W02600 ZHUHAI LANDA Compressor Manufacturer COMPRESSOR CO.,LTD Compressor Model QXFS-B181zX030AA Compressor Oil FW68DA Compressor Type Twin Rotary Compressor LRA. Compressor RLA 10.68 Compressor Power Input 1610 Compressor Overload Protector HPC115/95U1 KSD115℃...

  • Page 17: Capacity Variation Ratio According To Temperature

    2. Specifications Service Manual 2.2 Capacity Variation Ratio According to Temperature Cooling: Heating: Conditions Conditions Indoor:DB80°F/WB66.9°F Indoor: DB70°F Outdoor:DB95°F Outdoor: DB19.94°F/WB19.04°F Indoor air flow:Super High Indoor air flow: Super High Pipe length:24.6ft Pipe length: 24.6 ft -20 -10 95 104 113 122 -22 -13 -5 5 10 17 20 24 32 41 43 47 53 59 64 70 75 78 86 Outdoor temp.(°F)

  • Page 18: Cooling And Heating Data Sheet In Rated Frequency

    2. Specifications Service Manual 2.3 Cooling and Heating Data Sheet in Rated Frequency Cooling: Rated cooling condition(°F) Pressure of gas pipe connecting Inlet and outlet pipe temperature of (DB/WB) indoor and outdoor unit heat exchanger Fan speed of Fan speed of Model indoor unit outdoor unit...

  • Page 19: Outline Dimension Diagram

    3. Outline Dimension Diagram Service Manual 3.1 Indoor Unit 09K & 12K Φ2 11/64 6 7/64* 4 36/64* Φ2 11/64 1 37/64 1 37/64 7 1/64* 3 32/64* Φ2 3/4 2 23/64* 6 57/64* Model 09K & 12K 32 31/64 11 34/64 7 46/64 4 29/64...

  • Page 20: Outdoor Unit

    3. Outline Dimension Diagram Service Manual 3.2 Outdoor Unit 3VIR09HP115V1AO GWC09AGC-D3DNA1C/O 3VIR09HP230V1AO 30 45/64 12 38/64 33 25/64 Unit:inch 21 17/64 3VIR12HP115V1AO 3VIR12HP230V1AO 32 12/64 14 56/64 35 25/64 21 2/3 Unit:inch Technical Information...
  • Page 21 3. Outline Dimension Diagram Service Manual 3VIR18HP230V1AO 13 26/64 37 63/64 15 38/64 3VIR24HP230V1AO 36 7/32 14 37/64 39 31/64 16 13/16 Unit:inch Technical Information...

  • Page 22: Refrigerant System Diagram

    4. Refrigerant System Diagram Service Manual Cooling and heating model Indoor unit Outdoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Accumlator Suction exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Capillary Strainer COOLING HEATING Connection pipe speci ication: Liquid pipe:1/4"...
  • Page 23 4. Refrigerant System Diagram Service Manual Cooling and heating model Indoor unit Outdoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Accumlator Suction exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Electron Capillary Strainer expansion valve COOLING...

  • Page 24: Electrical Part

    5. Electrical Part Service Manual 5.1 Wiring Diagram ●Instruction Symbol Symbol Color Symbol Symbol Color Symbol Name White Green Jumper cap Yellow Brown COMP Compressor Blue Grounding wire YEGN Yellow/Green Black Violet Orange Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model. ●...
  • Page 25 5. Electrical Part Service Manual 3VIR18HP230V1AH 3VIR24HP230V1AH 600007064197 Technical Information...
  • Page 26 5. Electrical Part Service Manual ● Outdoor Unit 3VIR09HP230V1AO 60000706165507 3VIR09HP115V1AO 3VIR12HP115V1AO 600007064831 These wiring diagrams are subject to change without notice; please refer to the one supplied with the unit. Technical Information...
  • Page 27 5. Electrical Part Service Manual 3VIR12HP230V1AO 600007064438 3VIR18HP230V1AO 3VIR24HP230V1AO 60000706441701 These wiring diagrams are subject to change without notice; please refer to the one supplied with the unit. Technical Information...

  • Page 28: Pcb Printed Diagram

    5. Electrical Part Service Manual 5.2 PCB Printed Diagram Indoor Unit Name Name Fuse Up&down swing interface 1 Live wire Interface of display board Neutral wire Interface of temperature sensor Communication wire Door control DC fan interface Wired controller Interface of cold plasma Earthing wire Left&right swing interface Terminal of live wire...
  • Page 29 5. Electrical Part Service Manual 3VIR09HP230V1AO 3VIR12HP230V1AO Top view 1 Interface o 2 Reactor wi 3 Reactor wi 4 Terminal o 4-way valv Grounding 7 Neutral wir 8 Communic 9 Live wire 10 Terminal o 11 Interface o 12 Overload in 13 Terminal o Bottom view Name...
  • Page 30 5. Electrical Part Service Manual 3VIR09HP115V1AO 3VIR12HP115V1AO Top view 4-way Termin Groun Termin wire te Termin neutra Comm Termin tempe Compr protec Interfa expans Compr Reacto Interfa chassi Bottom view Name Name 4-way valve terminal Terminal of outdoor unit temperature sensor Terminal of outdoor fan Compressor overload protection terminal Grounding wire...
  • Page 31 5. Electrical Part Service Manual 3VIR18HP230V1AO 3VIR24HP230V1AO 9 10 Name Name Compressor three phase input terminal 2-way valve terminal Terminal of system high pressure protection Terminal of electric heating for compressor Compressor overload protection terminal Terminal of electric heating for chassis Terminal of temperature sensor Communication terminal Terminal of electronic expansion valve...

  • Page 32: Function And Control

    6. Function and Control Service Manual 6.1 Remote Controller Introduction of YAP1F7F(WiFi) Notice: 1.This is a general use remote controller. It could be used for the air conditioner with multifunction. For the functions which the model doesn't have, if press the corresponding button on the remote controller, the unit will keep the original running status. 2.After putting through the power, the air conditioner will give out a sound.
  • Page 33 6. Function and Control Service Manual by pressing " ON/OFF " button indoor fan will continue ● When selecting " ", air conditioner is blowing fan at 、 、 running for a few minutes. at low speed. In this per- iod, fixed angle.
  • Page 34 6. Function and Control Service Manual (4) Repeat the above step (2)~(3) operation, until 8 hours button again to cancel I FEEL function and " " will disappear. ● Please put the remote controller near user when this function temperature setting finished, sleep,curve setting finished, at this is set.
  • Page 35 6. Function and Control Service Manual Introduction for icons on display screen this function is started up, " " and "8°C" will be shown on remote controller, and the air conditioner keep the heating status at 8°C. I feel Press "TEMP" and "CLOCK" buttons simultaneously again to exit Set fan speed 8°C heating function.
  • Page 36 6. Function and Control Service Manual NOTICE: Emergency operation ● During operation, point the remote control signal sender at If remote controller is lost or damaged, please use aux. the receiving window on indoor unit. button to turn on or turn off the air conditioner. The The distance between signal sender and receiving window operation in details is as below: As shown in the figure, open should be no more than 8m, and there should be no...

  • Page 37: Gree+ App Operation Manual

    GREE+ App Download Linkage Scan the QR code or search "GREE+" in the application market to download and install it. When "GREE+" App is installed, register the account and add the device to achieve long-distance control and LAN control of Gree smart home appliances.

  • Page 38: Ewpe Smart App Operation Manual

    6. Function and Control Service Manual 6.3 Ewpe Smart App Operation Manual Control Flow Chart Internet Cloud Intelligent Home Wi-Fi Cellular/ home Other Wi-FI appliances Home wireless router Home Wi-Fi Operating Systems Requirement for User's smart phone: iOS system Android system Support iOS7.0 and Support Android 4.4 and above version...

  • Page 39: Brief Description Of Modes And Functions

    6. Function and Control Service Manual 6.4 Brief Description of Modes and Functions 1. Basic function of system (2) Auto button (1) Cooling mode If press this auto button when turning off the unit, the complete unit will operate at auto mode. Indoor fan operates at auto fan (1) Under this mode, fan and swing operates at setting status.
  • Page 40 6. Function and Control Service Manual Within 5min after energizing (unit ON or OFF status is ok), stop operation. Indoor fan can select to operate at high, medium, continuously press LIGHT button for 3 times within 3s to enter low or auto fan speed. Temperature setting range is 16~30 refrigerant recycling mode;...
  • Page 41 6. Function and Control Service Manual Outdoor Units (6) Under the condition that compressor is turned on, when unit is changed to heating mode from cooling or drying mode, 4-way 1. Cooling mode valve will be energized in 2~3mins delay. Working condition and process of cooling mode: Note: Tcompensation is determined by IDU and ODU.

  • Page 42: Part Ii : Installation And Maintenance

    7. Notes for Installation and Maintenance Service Manual Safety Precautions: Important! be installed in the circuit. The air switch should be all-pole parting and the contact parting distance should be more than 3mm. Please read the safety precautions carefully before installa- tion and maintenance.
  • Page 43 7. Notes for Installation and Maintenance 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 If compressor starts running when stop valve is open and refrigerant circuit free from air or substances other than the connection pipe is not yet connected, air will be sucked in and specified refrigerant.
  • Page 44 7. Notes for Installation and Maintenance Service Manual Main Tools for Installation and Maintenance Level meter Measuring tape Screw driver Impact drill Drill head Electric drill Electroprobe Universal meter Inner hexagon Electronic Torque wrench Open-end wrench spanner leakage detector Vacuum pump Pressure meter Pipe pliers Pipe pliers...

  • Page 45: Installation

    8. Installation Service Manual 8.1 Installation Dimension Diagram Space to the wall At least 6 in Space to the wall At least 6 in Space to the obstruction At least 20 in Drainage pipe Installation and Maintenance...
  • Page 46 8. Installation Service Manual Installation Procedures 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 wall-mounting Install the support of outdoor unit (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor...

  • Page 47: Installation Parts-Checking

    8. Installation Service Manual 8.2 Installation Parts-checking unit. (4) Make sure that the installation follows the requirement of Name installation dimension diagram. Indoor unit (5) Select a location which is out of reach for children and far away from animals or plants.If it is unavoidable, please add fence Outdoor unit for safety purpose.
  • Page 48 8. Installation Service Manual the holes. torque wrench on the union nut. Tighten the union nut with torque (3) Fix the wall-mounting frame on the wall with tapping screws wrench. (As show in Fig.6) and then check if the frame is firmly installed by pulling the frame. (4) Wrap the indoor pipe and joint of connection pipe with If the plastic expansion particle is loose, please drill another fixing insulating pipe, and then wrap it with tape.

  • Page 49: Installation Of Outdoor Unit

    8. Installation Service Manual 7. Connect Wire of Indoor Unit Indoor and (1) Open the panel, remove the screw on the wiring cover and outdoor power cord Indoor unit then take down the cover. (As show in Fig.11) pipe Screw Panel Liquid pipe...
  • Page 50 8. Installation Service Manual (4) For the unit with cooling capacity of 2300W~5000W, 6 3VIR09HP115V1AO cable cross 3VIR12HP115V1AO expansion screws are needed; for the unit with cooling capacity N(1) plate sub-assy of 6000W~8000W, 8 expansion screws are needed; for the green(yellow-green) black(brown) unit with cooling capacity of 10000W~16000W, 10 expansion...

  • Page 51: Vacuum Pumping And Leak Detection

    8. Installation Service Manual 2. Leakage Detection Note: (1) With leakage detector: (1) The through-wall height of drain hose shouldnt be higher Check if there is leakage with leakage detector. than the outlet pipe hole of indoor unit.(As show in Fig.25) (2) With soap water: (2) Slant the drain hose slightly downwards.

  • Page 52: Maintenance

    9. Maintenance Service Manual 9.1 Error Code List Display Method of Indoor Unit Malfunction Name A/C status Possible Causes Dual-8 Code Display During cooling and drying Possible reasons: operation, except indoor fan operates, all loads 1. Refrigerant was superabundant; High pressure stop operation.
  • Page 53 9. Maintenance Service Manual Display Method of Indoor Unit Malfunction Name A/C status Possible Causes Dual-8 Code Display 1. Loosening or bad contact of indoor ambient temp. sensor and mainboard terminal. During cooling and drying operation, indoor Indoor ambient 2. Components in mainboard fell down leads unit operates while other loads will stop;...
  • Page 54 9. Maintenance Service Manual Display Method of Indoor Unit Malfunction Name A/C status Possible Causes Dual-8 Code Display 1. Measure the voltage of position L and N on wiring board (XT), if the voltage is higher than During cooling and drying operation, compressor 265VAC, turn on the unit after the supply voltage Voltage for DC bus-bar is will stop while indoor fan will operate;...
  • Page 55 9. Maintenance Service Manual Display Method of Indoor Unit Malfunction Name A/C status Possible Causes Dual-8 Code Display During cooling and drying operation, compressor Charging will stop while indoor fan will operate; Refer to the part three—charging malfunction malfunction of capacitor analysis of capacitor During heating operation, the complete unit will stop...
  • Page 56 9. Maintenance Service Manual Display Method of Indoor Unit Malfunction Name A/C status Possible Causes Dual-8 Code Display compressor stop operation and Outdoor fan To protect the electronical components when power protection motor will stop 30s latter , 3 minutes latter fan detect high power motor and compressor will restart Indoor unit and outdoor...
  • Page 57 9. Maintenance Service Manual Display Method of Indoor Unit Malfunction Name A/C status Possible Causes Dual-8 Code Display 1. Main board of indoor unit is damaged; Malfunction of detecting Loads operate normally, while the unit can’t be 2. Detection board is damaged; normally controlled by APP.
  • Page 58 9. Maintenance Service Manual Analysis or processing of some of the malfunction display: 1. Compressor discharge protection Possible causes: shortage of refrigerant; blockage of air filter; poor ventilation or air flow short pass for condenser; the system has noncondensing gas (such as air, water etc.); blockage of capillary assy (including filter); leakage inside four-way valve causes incorrect operation;...

  • Page 59: Procedure Of Troubleshooting

    9. Maintenance Service Manual 9.2 Procedure of Troubleshooting 1. 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? ●...
  • Page 60 9. Maintenance Service Manual 2. Communication malfunction E6 Main detection points: ● Check if the connection wire and the built-in wiring of indoor and outdoor unit are connected well and without damage; ● If the communication circuit of indoor mainboard is damaged? If the communication circuit of outdoor mainboard (AP1) is damaged? Malfunction diagnosis process: Start If the unit is operation...
  • Page 61 9. Maintenance Service Manual 3. IPM protection H5 , over-phase current of compressor P5 (AP1 hereinafter refers to the control board of the outdoor unit) Main detection points: (1) compressor COMP terminal (2) power supply voltage (3) compressor (4) charging amount of refrigerant (5) air inlet and air outlet of indoor/outdoor unit Malfunction diagnosis process: Turn on the unit...
  • Page 62 9. Maintenance Service Manual 4. Overload protection of compressor H3, high discharge temperature protection of compressor E4 (AP1 hereinafter refers to the control board of the outdoor unit) Main detection points: (1) electronic expansion valve (2) expansion valve terminal (3) charging amount of refrigerant (4) overload protector Malfunction diagnosis process: After the unit de-energized...
  • Page 63 9. Maintenance Service Manual 5. Malfunction of Temperature Sensor F1, F2 Main detection points: (1) connection terminal (2) temperature sensor (3) main board Malfunction diagnosis process: Start Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? Insert the temperature sensor tightly Is malfunction...
  • Page 64 9. Maintenance Service Manual 6. High temperature and overload protection (E8)(AP1 below means control board of outdoor unit) Main detection points: (1) outdoor temperature (2) fan (3)air inlet and air outlet of indoor/outdoor unit Malfunction diagnosis process: Overload protection, high temperature prevention protection Normal protection.
  • Page 65 9. Maintenance Service Manual 7. 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 66 9. Maintenance Service Manual 8. Start-up failure LC (following AP1 for outdoor unit control board) Main detection points: (1) compressor wire (2) compressor (3) charging amount of refrigerant Malfunction diagnosis process: Power on the unit Restart it up after Is stop time of the compressor 3 minutes longer than 3 minutes? Does startup fail?
  • Page 67 9. Maintenance Service Manual 9. Desynchronization diagnosis for compressor H7 (AP1 hereinafter refers to the control board of the outdoor unit) Main detection points: (1) system pressure (2) power supply voltage Malfunction diagnosis process: Synchronism after Synchronism energize the unit occurred during and start it operation...
  • Page 68 9. Maintenance Service Manual 10. Malfunction of Overcurrent Protection E5 Main detection points: ● Is the supply voltage unstable with big fluctuation? ● Is the supply voltage too low with overload? ● Hardware trouble? Malfunction diagnosis process: Start Normal fluctuation should be within 10 % Is malfunction Is the supply voltage unstable of the rated voltage on the nameplate...
  • Page 69 9. Maintenance Service Manual 11. Malfunction of Blocked Protection of IDU Fan Motor H6 Main detection points: ● Smoothly Is the control terminal of PG motor connected tightly? ● Smoothly Is the feedback interface of PG motor connected tightly? ● The fan motor can't operate? ●...
  • Page 70 9. Maintenance Service Manual 12. Capacity charging malfunction PU (AP1 below means control board of outdoor unit)Main detection points: Main detection points: (1) wiring board XT (2) reactor Malfunction diagnosis process: Put through the power to turn on the unit and then wait for 1min Measure the voltage at both ends of electrolytic capacitor...
  • Page 71 9. Maintenance Service Manual 13. Malfunction of detecting plate(WIFI) JF Start check if the connection wire are correctly connected Replace the detecting plate with the same model Is malfunction eliminated Replace the mainboard with the same model The end Installation and Maintenance...

  • Page 72: Troubleshooting For Normal Malfunction

    9. Maintenance Service Manual 9.3 Troubleshooting for Normal Malfunction 1. Air Conditioner can't be Started Up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether it's due to power failure. If yes, No power supply, or poor connection After energization, operation indicator isnt bright wait for power recovery.
  • Page 73 9. Maintenance Service Manual 4. ODU Fan Motor can't 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 diagram make sure all wiring terminals are connected connection firmly Measure the capacity of fan capacitor with an...

  • Page 74: Removal Procedure

    11. Removal Procedure Service Manual 11.1 Removal Procedure of Indoor Unit Caution: discharge the refrigerant completely before removal. Step Procedure Before disassemble Turn off the air conditioner and disconnect the power before disassemble the air conditioner. 1. Remove filter Filter Hold the handle on the filter, pull it upwards to let the clasp at the top part of the filter loose, push it forwards and then the filter can be pulled out.
  • Page 75 11. Removal Procedure Service Manual Step Procedure Panel rotation 3.Remove panel Panel Display Screws Open the front panel; separate the panel rotation shaft from the groove fixing the front panel and then removes the front panel. Note: The display of some models is fixed on the panel; unscrew the screws fixing the display on the panel before removing the panel.
  • Page 76 11. Removal Procedure Service Manual Step Procedure 6.Remove electric box assy Remove the screw fixing electric box assy. Step motor Indoor tube Grounding temperature sensor Electric box assy screw Main board ① Cut off the wire binder and pull out the indoor tube temperature sensor.
  • Page 77 11. Removal Procedure Service Manual Step Procedure 7.Remove panel Remove 3 screws fixing evaporator assy. At the back of the unit, Loosen the clasp of the connection pipe clamp and then remove the connection pipe clamp. First remove the left side of evaporator from the groove of bottom shell and then remove the right side from the clasp on the bottom shell.
  • Page 78 11. Removal Procedure Service Manual Step Procedure 8. Remove motor and cross flow fan Remove 3 screws fixing motor clamp and then remove the motor clamp. Screw Screw Loose the screws (2-3 circles) used for fixing the cross flow fan, pull right to pull out the motor. 9.

  • Page 79: Removal Procedure Of Outdoor Unit

    11. Removal Procedure Service Manual 11.2 Removal Procedure of Outdoor Unit Caution: discharge the refrigerant completely before removal. NOTE:Take heat pump for example. Step Procedure 1. Remove cable cross plate sub-assy and valve cover cable cross plate sub-assy Remove the screws connecting cable cross plate sub-assy and right side plate, to remove the cable cross plate sub-assy.
  • Page 80 11. Removal Procedure Service Manual Step Procedure 4.Remove right side plate, left side plate right side plate Remove the screws fixing right side plate, left side plate and then remove them. left side plate 5.Remove axial flow blade axial flow blade Remove the nut fixing the blade and then remove the axial flow blade.
  • Page 81 11. Removal Procedure Service Manual Step Procedure 7. Remove electric box assy electric box assy Remove the screws fixing electric box assy; cut off the tieline; pull out each wiring terminal; lift the electric box assy upwards to remove it. Note: When pulling out the wiring terminal, pay attention to loose the clasp and don’t pull it so hard.
  • Page 82 11. Removal Procedure Service Manual Step Procedure 10.Remove liquid valve and gas valve Unsolder the welding joint connecting the valve with capillary and condenser; unsolder the welding joint connecting the gas valve and air-return pipe; remove the 2 screws fixing the gas valve to remove the gas valve.
  • Page 83 11. Removal Procedure Service Manual NOTE:Take heat pump for example. Step Procedure 1. Remove big handle Before disassamble Cable cross plate 2 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.
  • Page 84 11. Removal Procedure Service Manual Step Procedure 3.Remove grille and protective 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 Protective with the chassis and the motor support, and then grille remove the front panel.
  • Page 85 11. Removal Procedure Service Manual Step Procedure 6. Remove motor and motor support Remove the screws fixing motor and then remove the motor. Remove the screws fixing motor support and then remove the motor support. Motor Motor support 7. Remove electric box assy Electric box assy Remove the screws fixing electric box assy;...
  • Page 86 11. Removal Procedure Service Manual Step Procedure 9.Remove 4-way valve assy 4-way valve assy 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.
  • Page 87 11. Removal Procedure Service Manual NOTE:Take heat pump for example. Step Procedure 1. Remove big handle, valve cover and top cover Big handle Remove the screw connecting the big handle and right side plate, and then remove the big handle. Remove the screw connecting the valve cover and right side plate, and then remove the valve cover.
  • Page 88 11. Removal Procedure Service Manual Step 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 89 11. Removal Procedure Service Manual Step Procedure 4. Remove axial flow blade Axial flow fan Remove the nut fixing axial flow blade and then remove the blade. 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 90 11. Removal Procedure Service Manual Step Procedure 6. 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. Isolation plate 7.
  • Page 91 11. Removal Procedure Service Manual Step Procedure 9. Remove condenser sub-assy Support R e m o v e t h e s c r e w s c o n n e c t i n g t h e s u p p o r t (condenser) and condenser assy, and then remove the support(condenser).
  • Page 92 11. Removal Procedure Service Manual NOTE:Take heat pump for example. Step Procedure 1. Remove handle and valve cover handle Twist off the screws used for fixing the handle, pull the handle upward to remove it.Loosen the screws valve cover fixing the valve cover and then remove it. 2.
  • Page 93 11. Removal Procedure Service Manual Step Procedure 4.Remove front side plate and front panel Remove screws connecting front side plate, outer case and chassis,and then remove the front side plate. front side plate front panel Remove screws fixing front panel,chassis and motor support, and then remove the front panel.
  • Page 94 11. Removal Procedure Service Manual Step Procedure 6. Remove axial flow blade Remove nut on blade with wrench,and then remove the axial flow blade. axial flow blade 7. Remove electric box and fireproof electric box electric box Remove screws fixing electric box,cut off the tielien with scissors, pull out the wiring terminal and then lift up the electric box to remove it.
  • Page 95 11. Removal Procedure Service Manual Step Procedure Twist off the tapping screws fixing the motor support, pull it upwards and then remove the motor support. motor support 9.Remove isolation sheet Twist off the screws connecting isolation sheet and end plate of condenser and chassis, and then remove the isolation sheet.
  • Page 96 11. Removal Procedure Service Manual Step Procedure 11.Remove gas valve and liquid valve Twist off the 2 bolts fixing the valve sub-assy. Unsolder the soldering joint between gas valve and air-return pipe and then remove the gas valve. (note: when unsoldering the soldering joint, wrap the gas valve gas valve with wet cloth completely to avoid the damage to valve, and release all refrigerant...
  • Page 97 11. Removal Procedure Service Manual Step Procedure 14.Remove condenser sub-assy Remove the chassis sub-assy and condenser sub-assy. chassis sub-assy Installation and Maintenance...

  • Page 98: Appendix

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

  • Page 99: Appendix 3: Pipe Expanding Method

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

  • Page 100: Appendix 4: List Of Resistance For Temperature Sensor

    Appendix: 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) 138.10 49.02 18.75 7.97 128.60 44.31 17.14 7.35 115.00 40.09 15.68 6.79 102.90...
  • Page 101 U.S. CONTACT INFORMATION TRADEWINDS, LLC E-mail: info@twclimate.com Contractor Support: 888-850-7928 | Mon-Fri 8 AM - 5 PM EDT G R E E C O M F O R T . C O M CAT N O : G R E E _ V I R E O G E N 3 _ S E R V I C E _ 0 8 0 4 2 0 2 2...

This manual is also suitable for:

Vireo gen3 3vir09hp230v1aVireo gen3 3vir12hp115v1aVireo gen3 3vir12hp230v1aVireo gen3 3vir18hp230v1aVireo gen3 3vir24hp230v1aVireo gen3 3vir09hp115v1ah ... Show all

Table of Contents