Argo X3I ECO PLUS 35 SH User And Installation Manual
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Argo X3I ECO PLUS 35 SH User And Installation Manual

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MONO SPLIT R32 WIFI
USER and INSTALLATION MANUAL
OUTDOOR UNITS
X3I ECO PLUS 27 SH
X3I ECO PLUS 35 SH
X3I ECO PLUS 52 SH
X3I ECO PLUS 70 SH
Please read this manual carefully before installing and using the air
conditioner, and retain for future reference.
X3 ECO PLUS
AIR CONDITIONERS
V 03/20
INDOOR UNITS
X3I ECO PLUS 27 HL WF
X3I ECO PLUS 35 HL WF
X3I ECO PLUS 52 HL WF
X3I ECO PLUS 70 HL WF

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Summary of Contents for Argo X3I ECO PLUS 35 SH

  • Page 1 OUTDOOR UNITS INDOOR UNITS X3I ECO PLUS 27 SH X3I ECO PLUS 27 HL WF X3I ECO PLUS 35 SH X3I ECO PLUS 35 HL WF X3I ECO PLUS 52 SH X3I ECO PLUS 52 HL WF X3I ECO PLUS 70 SH...

  • Page 2: Part Ⅰ : Technical Information

    Service Manual Part Ⅰ : Technical Information 1. Summary Indoor Unit Outdoor Unit Remote Controller...

  • Page 3: Specification Sheet

    Service Manual 2. Specifications 2.1 Specification Sheet Model X3I ECO PLUS 27 Product Code Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 2700 Heating Capacity 2800 Cooling Power Input Heating Power Input Cooling Current Input Heating Current Input Rated Input 1500...
  • Page 4 Service Manual X3I ECO PLUS 27 SH Model of Outdoor Unit Product Code of Outdoor Unit ZHUHAI LANDA COMPRESSOR Compressor Manufacturer/Trademark CO., LTD Compressor Model QXF-A079zE190A Compressor Oil FW68DA Compressor Type Rotary L.R.A. Compressor RLA Compressor Power Input Overload Protector HPC115/95U1/KSD115℃...
  • Page 5 Service Manual Model X3I ECO PLUS 24 SH Product Code Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 2700 Heating Capacity 2800 Cooling Power Input Heating Power Input Cooling Current Input Heating Current Input Rated Input 1500 Rated Current...
  • Page 6 Service Manual Model of Outdoor Unit X3I ECO PLUS 274 SH Product Code of Outdoor Unit Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXF-A079zE190A Compressor Oil FW68DA Compressor Type Rotary L.R.A. Compressor RLA Compressor Power Input Overload Protector HPC115/95U1/KSD115℃...
  • Page 7 Service Manual X3I ECO PLUS 35 Model Product Code Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 3500 Heating Capacity 3670 Cooling Power Input 1085 Heating Power Input Cooling Current Input Heating Current Input Rated Input 1500 Rated Current...
  • Page 8 Service Manual X3I ECO PLUS 35 SH Outdoor Unit Model Outdoor Unit Product Code CB419W15501 Compressor Manufacturer Compressor Model QXF-A102zE190B Compressor Oil FW68DA Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input 1023 Compressor Overload Protector HPC115/95U1/KSD115℃ Throttling Method...
  • Page 9 Service Manual Model X3I ECO PLUS 35 Product Code Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 3500 Heating Capacity 3670 Cooling Power Input 1085 Heating Power Input Cooling Current Input Heating Current Input Rated Input 1500 Rated Current...
  • Page 10 Service Manual Outdoor Unit Model X3I ECO PLUS 35 SH Outdoor Unit Product Code CB419W15500 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO.,LTD Compressor Model QXF-A102zE190B Compressor Oil FW68DA Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input 1023 Compressor Overload Protector HPC115/95U1/KSD115℃...
  • Page 11 Service Manual X3I ECO PLUS 52 Model Product Code Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 5200 Heating Capacity 5300 Cooling Power Input 1528 Heating Power Input 1410 Cooling Current Input 6.78 Heating Current Input 6.26 Rated Input 2600...
  • Page 12 Service Manual Outdoor Unit Model X3I ECO PLUS 52 SH Outdoor Unit Product Code Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO.,LTD Compressor Model QXF-B141ZF030F Compressor Oil FW68DA or equivalent Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input 1410 Compressor Overload Protector HPC115/95U1 KSD115℃...
  • Page 13 Service Manual X3I ECO PLUS 52 SH Model Product Code Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 5200 Heating Capacity 5300 Cooling Power Input 1528 Heating Power Input 1410 Cooling Current Input 6.78 Heating Current Input 6.26 Rated Input...
  • Page 14 Service Manual Outdoor Unit Model X3I ECO PLUS 52 SH Outdoor Unit Product Code Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO.,LTD Compressor Model QXF-B141ZF030F Compressor Oil FW68DA or equivalent Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input 1410 Compressor Overload Protector HPC115/95U1 KSD115℃...
  • Page 15 Service Manual Model X3I ECO PLUS 70 Product Code Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 7000 Heating Capacity 7400 Cooling Power Input 1900 Heating Power Input 1897 Cooling Current Input 8.73 Heating Current Input 8.84 Rated Input 3750...
  • Page 16 Service Manual X3I ECO PLUS 24 SH Outdoor Unit Model Outdoor Unit Product Code Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXFS-D25zX090H Compressor Oil FW68DA Compressor Type Rotary Compressor LRA. Compressor RLA 11.7 Compressor Power Input 2420 Compressor Overload Protector HPC115/95U1/KSD115℃...
  • Page 17 Service Manual X3I ECO PLUS 70 SH Model Product Code Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity 7000 7000 Heating Capacity 7400 7400 Cooling Power Input 1900 1900 Heating Power Input 1897 1897 Cooling Current Input...
  • Page 18 Service Manual X3I ECO PLUS 70 SH Outdoor Unit Model Outdoor Unit Product Code Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXFS-D25zX090H Compressor Oil FW68DA Compressor Type Rotary Compressor LRA. Compressor RLA 11.7 Compressor Power Input 2420 Compressor Overload Protector HPC115/95U1/KSD115℃...

  • Page 19: Operation Characteristic Curve

    Service Manual 2.2 Operation Characteristic Curve Cooling Heating Cooling Heating 220V Conditions 220V Indoor: DB27°C/WB19°C Outdoor: DB35°C/WB24°C Indoor air flow: High Pipe length: 5m 230V 230V 240V Conditions Indoor: DB20°C/WB15°C 240V Outdoor: DB7°C/WB6°C Indoor air flow: High Pipe length: 5m 10 20 30 40 50 60 70 80 90 100 Compressor speed (rps) Compressor speed (rps)

  • Page 20: Cooling And Heating Data Sheet In Rated Frequency

    Service Manual 2.4 Cooling and Heating Data Sheet in Rated Frequency Cooling: Pressure of gas pipe Inlet and outlet pipe Rated cooling Compressor connecting indoor and temperature of heat Fan speed of Fan speed of condition(°C) (DB/WB) Model revolution outdoor unit exchanger indoor unit outdoor unit...

  • Page 21: Outline Dimension Diagram

    Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit X3I ECO PLUS 27 HL WF X3I ECO PLUS 35 HL WF 123.5 179.5 168.5 159.5 Φ55 Φ55 Φ55 Φ55 124.7 83.2 X3I ECO PLUS 70 HL WF X3I ECO PLUS 52 HL WF Φ70 Φ55 Φ70...

  • Page 22: Outdoor Unit

    Service Manual 3.2 Outdoor Unit X3I ECO PLUS 35 SH Unit:mm X3I ECO PLUS 52 SH - X3I ECO PLUS 70 SH Unit:mm Technical Information...
  • Page 23 Service Manual X3I ECO PLUS 27 SH Unit:mm...

  • Page 24: Refrigerant System Diagram

    Service Manual 4. Refrigerant System Diagram All models except: X3I ECO PLUS 27 SH Cooling and heating model Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Suction Accumlator exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve...

  • Page 25: Electrical Part

    Service Manual 5. Electrical Part 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 26 Service Manual ● Outdoor Unit X3I ECO PLUS 70 SH 600007000339 Technical Information...
  • Page 27 Service Manual X3I ECO PLUS 27 SH 600007000687...
  • Page 28 Service Manual X3I ECO PLUS 35 SH 60000700111002 Technical Information...
  • Page 29 Service Manual X3I ECO PLUS 52 SH 6361000021801...
  • Page 30 Service Manual X3I ECO PLUS 70 SH 60000700033902 These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit. Technical Information...

  • Page 31: Pcb Printed Diagram

    Service Manual 5.2 PCB Printed Diagram Indoor Unit All models except: Top view Name Interface of communication wire for indoor unit and outdoor unit Interface of live wire Fuse Interface of health function neutral wire (only for the mode with this function) Interface of neutral wire Interface of fan Interface of health function live wire...
  • Page 32 Service Manual Outdoor Unit X3I ECO PLUS 27 SH - X3I ECO PLUS 35 SH Top view Name 1 Interface of compressor wire 2 Reactor wiring terminal 2 3 Reactor wiring terminal 1 4 Terminal of chassis electric heater 4-way valve terminal...
  • Page 33 Service Manual X3I ECO PLUS 52 SH Top view Name Terminal of compressor overload protection Terminal of temperature sensor Terminal of electronic expansion valve 4 Terminal of outdoor fan 5 Terminal of 4-way valve Terminal of compressor electric heating Terminal of chassis electric heating Terminal of indoor unit and outdoor unit communication...
  • Page 34 Service Manual X3I ECO PLUS 70 SH Top View Name Name Name Compressor three phase input interface Terminal of high pressure protection 11 Terminal of chassis electric heating Terminal of low ambient temperature Terminal of low pressure protection 12 Terminal of live wire cooling temperature sensor Terminal of electronic expansion valve Terminal of outdoor fan...

  • Page 35: Function And Control

    Service Manual 6. Function and Control 6.1 Remote Controller Introduction YAC1FB9(WiFi) ON/OFF button MODE button FAN button TURBO button ▲/ button button button SLEEP button I FEEL button TIMER ON / TIMER OFF button CLOCK button QUIET button WiFi button LIGHT button button TEMP button...
  • Page 36 Service Manual Press this button to turn on the unit. Press this button again to turn off the unit. (This indicator is not available for some models). (This indicator is not available for some models). Operation indicator is ON. (This indicator is not available for some models).
  • Page 37 Service Manual function is only available for some mode Press this button, can select Sleep 1 ( ), Sleep 2 ( ), Sleep 3 ( ) and cancel the Sleep, circulate between these, after electrified, Sleep Cancel is defaulted.Sleep 1 is Sleep mode 1, in Cool modes; sleep status after run for one hour, the main unit setting temperature will increase 1 , two hours, setting temperature increased 2 , then the unit will run at this setting temperature;...
  • Page 38 Service Manual The Quiet function can be set up in all modes; Under the Quiet mode,the fan speed is not available. The Quiet function is only available for some models. When quiet function is selected Under cooling mode: indoor fan operates at notch 4 speed. 10 minutes later or when indoor ambient temperature≤28℃, indoor fan will operate at notch 2 speed or quiet mode according to the comparison between indoor ambinet temperature and set temperature.
  • Page 39 Service Manual If “H1” is displayed on the remote controller while it’s not operated by the professional person/after-sales person, it belongs to the misoperation. Please operate it as below to cancel it.Under the OFF status of remote controller, hold the Mode button for 5s to cancel “H1” display. Note: If remote controller displays “H1”, it belongs to the normal function reminder.
  • Page 40 Service Manual...
  • Page 41 Service Manual 6.2 GREE+ App Operation Manual Control Flow Chart Internet Gree Cloud Gree Home Wi-Fi Cellular/ intelligent home Other Wi-FI appliances Home wireless router Home Wi-Fi GREE+ APP Operating Systems Requirement for User's smart phone: iOS system Android system Support iOS7.0 and Support Android 4.4 and above version...
  • Page 42 Service Manual 6.3 Ewpe Smart App Operation Manual Control Flow Chart Internet Cloud intelligent Cellular/ Home Wi-Fi 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 above version...
  • Page 43 Service Manual 6.4 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 16~30 (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 44 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)Entry condition for compulsory defrosting function When turn on the unit under heating ode and set temperature is 16 C (or 16.5 C by remote controller), press “+, -, +, -, +, -”...

  • Page 45: Outdoor Unit

    Service Manual Outdoor Unit ● 1. Cooling mode: Working condition and process of cooling mode: ① When Tindoor ambient temperature≥Tpreset, unit enters into cooling mode. Indoor fan, outdoor fan and compressor start operation. Indoor fan operates according to set fan speed. ②...
  • Page 46 Service Manual Auto mode is determined by controller of IDU. See IDU logic for details. 8. 8 C heating Set temperature is 8 C. Display board of IDU displays 8 C. Under this mode, “Cold air prevention” function is shielded. If compressor is operating under this mode, fan speed will adjust according to auto fan speed;...

  • Page 47: Part Ⅱ : Installation And Maintenance

    Service Manual Part Ⅱ : Installation and Maintenance 7. 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 48: Safety Precautions For Installing And Relocating The Unit

    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 49: Safety Operation Of Flammable Refrigerant

    Service Manual Safety Operation of Flammable Refrigerant Qualification requirement for installation and maintenance man ●All the work men who are engaging in the refrigeration system should bear the valid certification awarded by the authoritative organization and the qualification for dealing with the refrigeration system recognized by this industry. If it needs other technician to maintain and repair the appliance, they should be supervised by the person who bears the qualification for using the flammable refrigerant.

  • Page 50: Main Tools For Installation And Maintenance

    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 51: Installation Dimension Diagram

    Service Manual 8. Installation 8.1 Installation Dimension Diagram Space to the wall Space to the wall At least 15cm At least 15cm Drainage pipe Installation and Maintenance...
  • Page 52 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 53: Installation Parts-Checking

    Service Manual 8.4 Requirements for electric connection 8.2 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 54: Installation Of Indoor Unit

    Service Manual 8.5 Installation of Indoor Unit 1. Choosing Installation Iocation Recommend the installation location to the client and then confirm it with the client. 2. Install Wall-mounting Frame Rear left (1) Hang the wall-mounting frame on the wall; adjust it in horizontal position with the level meter and then point out the Fig.3 Right...
  • Page 55 Service Manual (4) Put wiring cover back and then tighten the screw. Drain hose (5) Close the panel. Outlet pipe Note: (1) All wires of indoor unit and outdoor unit should be Tape connected by a professional. Drain hose Outlet Fig.9 pipe (2) If the length of power connection wire is insufficient, please...

  • Page 56: Installation Of Outdoor Unit

    Service Manual 4. Connect Indoor and Outdoor Pipes Outdoor Indoor Fig.17 (1) Remove the screw on the right handle of outdoor unit and Wall pipe Sealing gum then remove the handle.(As show in Fig.21) Upper hook (2) Remove the screw cap of valve and aim the pipe joint at the bellmouth of pipe.(As show in Fig.22) Liquid pipe Pipe joint...

  • Page 57: Vacuum Pumping And Leak Detection

    Service Manual 2. Leakage Detection (1) With leakage detector: The drain hos can't raise Check if there is leakage with leakage detector. upwards (2) With soap water: If leakage detector is not available, please use soap water for Wall leakage detection. Apply soap water at the suspected position and keep the soap water for more than 3min.

  • Page 58: Maintenance

    Service Manual 9. Maintenance 9.1 Error Code List Display Method of Malfunction Indoor Unit A/C status Possible Causes Dual-8 Name Code Display Possible reasons: During cooling and drying High 1. Refrigerant was superabundant; operation, except indoor fan operates, all pressure 2.
  • Page 59 Service Manual Display Method of Indoor Unit Malfunction Dual-8 A/C status Possible Causes Name Code Display 1. Loosening or bad contact of indoor ambient temp. sensor and Indoor During cooling and drying mainboard terminal. ambient operation, indoor unit operates 2. Components in mainboard fell temperature while other loads will stop;...
  • Page 60 Service Manual Display Method of Malfunction Indoor Unit A/C status Possible Causes Dual-8 Name Code Display Decrease Overload or temperature is too high; frequency All loads operate normally, while Refrigerant is insufficient; due to operation frequency for Malfunction of electric expansion valve high air compressor is decreased (EKV)
  • Page 61 Service Manual Display Method of Indoor Unit Malfunction Dual-8 A/C status Possible Causes Name Code Display Compressor intermediate Showing during middle cooling or middle frequence in heating test test state Overcurrent During cooling and drying Refer to the malfunction analysis (IPM protection of operation, compressor will stop protection, loss of synchronism protection...
  • Page 62 Service Manual Display Method of Malfunction Indoor Unit A/C status Possible Causes Dual-8 Name Code Display 1. Bad contact of DC motor feedback terminal. 2. Bad contact of DC motor Internal fan motor, external fan motor, Internal motor control end. compressor and electric heater stop (fan motor) do operation,guide louver stops at present...
  • Page 63 Service Manual Display Method of Malfunction Indoor Unit A/C status Possible Causes Dual-8 Name Code Display During cooling and drying Malfunction operation, the compressor will Theres circuit malfunction on outdoor of complete stop while indoor fan will operate; units control panel AP1, please replace units current During heating operating, the complete the outdoor units control panel AP1.
  • Page 64 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 65: Procedure Of Troubleshooting

    Service Manual 9.2 Procedure of Troubleshooting 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 66 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 67 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 68 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 69 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 Installation and Maintenance...
  • Page 70 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. ●Is the reactor (L) correctly connected? Is the connection loose or fallen? Is the reactor (L) damaged? Fault diagnosis process: Turn on the unit...
  • Page 71 Service Manual (2) IPM protection, phase current overcurrent (the control board as below indicates the control board 2. IPM protection, phase current overcurrent (the control board as below indicates the control board of outdoor unit) H5/P5 of outdoor unit) H5/P5 Mainly detect: (1) Compressor COMP terminal (2) voltage of power supply (3) compressor (4) Refrigerant-charging volume (5) air outlet and air inlet of outdoor/indoor unit...
  • Page 72 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 73 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 Restart it up after Is stop time of the compressor 3 minutes longer than 3 minutes?
  • Page 74 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 unit is powered on.
  • Page 75 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 complete unit is powered off Is the terminal FA for the Connect the...
  • Page 76 Service Manual (7) 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 damage? Fault diagnosis process: Start...
  • Page 77 Service Manual (8) Malfunction of Overcurrent Protection 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 78: Troubleshooting For Normal Malfunction

    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 79 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 80 REGULATION (EU) No. 517/2014 - F-GAS The unit contains R32, a fluorinated greenhouse gas with global warming potential (GWP) = 675.   Do not release R32 into the atmosphere.  X3I ECO 27 SH - Kg. 0,55 = 0,371 Tonn CO equiv. X3I ECO 35 SH - Kg. 0,70= 0,473 Tonn CO equiv. X3I ECO 52 SH - Kg. 1,00 = 0,675Tonn CO equiv.

This manual is also suitable for:

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