Gree FGR25Pd/DNa-X Service Manual
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Gree FGR25Pd/DNa-X Service Manual

Duct type split air conditioner inverter series
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Summary of Contents for Gree FGR25Pd/DNa-X

  • Page 2: Table Of Contents

    Contents PRODUCT  ......................... 1   1 Product List ...........................  2   2 Nomenclature  ........................  2   3 Specifications ........................  3   CONTROL  ......................... 5   1 Wired Controller  ........................  6   2 Remote Controller YAP1F ....................  9   3 Introduction to IDU Functions ..................  1 0   4 Monitoring Software ...

  • Page 3: Product

    Duct type split Air conditioner Inverter Series PRODUCT...

  • Page 4: Product List

    Duct type split Air conditioner Inverter Series 1 Product List Cooling Heating Appearance Capacity Capacity Power Model Refrigerant Supply Outdoor Indoor FGR20Pd/DNa-X FGR25Pd/DNa-X 27.5 3N/380-41 FGR30Pd/DNa-X 5V/50Hz/ R410a 60Hz FGR40Pd/D(2)Na-X 2 Nomenclature...

  • Page 5: Specifications

    (The unit to be exported must be expressed) Outdoor unit-(O) Indoor and outdoor unit code Indoor unit-(I) The entire unit is not expressed. 3 Specifications Model Heat pump FGR20Pd/DNa-X FGR25Pd/DNa-X Cooling Capacity Heating 27.5 EER/COP 2.55/3.25 2.65/3.10 Power supply Ph/V/Hz...
  • Page 6 Duct type split Air conditioner Inverter Series Model Heat pump FGR30Pd/DNa-X FGR40Pd/D(2)Na-X Cooling Capacity Heating EER/COP 2.65/3.20 2.60/3.10 Power supply Ph/V/Hz 3N/380-415/(50/60) 3N/380-415/(50/60) Cooling 11.3 15.4 Power input Heating 10.3 13.9 Cooling 22.7 27.8 Current input Heating 20.7 26.4 Refrigerant charge volume 6.4×2 3060 4120...

  • Page 7: Control

    Duct type split Air conditioner Inverter Series CONTROL...

  • Page 8: Wired Controller

    Duct type split Air conditioner Inverter Series 1 Wired Controller 1.1 Control panel Fig1.1 Appearance of wired controller Fig1.2 LED graphics of wired controller Table 1.1 LED display instruction Symbols Instructions Up and down swing function Left and right swing function It's valid under Save mode and displays during setting process.

  • Page 9: Installation Dimensions

    Duct type split Air conditioner Inverter Series Symbols Instructions Heating mode When inquiring or setting project number of indoor unit, it displays "NO." icon Floor Heating mode (When Heating and Floor Heating simultaneously shows up, it indicates 3D Heating is activated.) Display "SET"...

  • Page 10: Installation Method

    Duct type split Air conditioner Inverter Series Fig1.3 Installation dimensions 1.2.2 Installation method Fig1.4 Installation of Wired Controller Above is a simple installation method of wired controller. Please pay attention to the following: ◆Before installation, disconnect power of the indoor unit. Do not operate when power is connected. ◆Pull out the 2-core twisted pair cable from the installation hole on the wall and lead it through the hole on the back plate of wired controller.

  • Page 11: Remote Controller Yap1F

    Duct type split Air conditioner Inverter Series Fig1.5 Removal of Wired Controller 1.2.4 Connection of communication cord Fig1.6 One wired controller controls one indoor unit 2 Remote Controller YAP1F...
  • Page 12 Duct type split Air conditioner Inverter Series Button name and function introduction Button name Function ON/OFF Turn on or turn off the unit TURBO Set turbo function MODE Set operation mode Set up&down swing status I FEEL Set I FEEL function TEMP Switch temperature displaying type on the unit’s display Set health function and air function...
  • Page 13 Duct type split Air conditioner Inverter Series User parameter settings Engineering parameter query Engineering parameter settings Engineering application functions can be operated through the IDU wired controller(XK46). 3.1 User Parameter Query User parameters can be queried in power-on or power-off status. (1) Press and hold the “FUNCTION”...
  • Page 14 Duct type split Air conditioner Inverter Series Note: In parameter query status, "FAN", “TIMER”, "SLEEP", and "SWING" are invalid. By pressing the “ON/OFF” button, users can return to the main interface but not power on/off the unit. 3.2 User Parameter Settings User parameters can be set in power-on or power-off status.
  • Page 15 Duct type split Air conditioner Inverter Series Parameter Parameter Default Parameter Range Remark Code Name Value determined by settings of the IDU. 00: standard-ceiling installation height High-ceiling installation 01: high-ceiling installation height 00: common timing Timer function settings 01: time-point timing Repeating 00: single timing validity for...
  • Page 16 Duct type split Air conditioner Inverter Series Parameter Parameter Parameter Name View Method Code Range Display mode: Temperature area: displays the project number of the current IDU. Timer area: displays the current IDU capacity/IDU capacity after adjustment. Operation method: 1. In “C05” status, press the “MODE” button to enter the historical fault query interface.
  • Page 17 Duct type split Air conditioner Inverter Series Parameter Parameter Parameter Name View Method Code Range Operation method: In “C15” status, press the “MODE” button to enter outlet temperature sensor query of IDU. Press " " or " " to switch the IDU SN.
  • Page 18 Duct type split Air conditioner Inverter Series Parameter Parameter Parameter Name View Method Code Range displays a corresponding parameter value. Press “▲” or “▼” to switch the parameter code and press the “ENTER/CANCEL” button to return to the upper-level menu. Display mode: Temperature area: displays the ODU module ID and parameter code from left to right.
  • Page 19 Duct type split Air conditioner Inverter Series Parameter Parameter Parameter Name View Method Code Range “▼” to switch the project number of IDU. Press the “MODE” button to select an IDU. The temperature area displays “Un” and the timer area displays “-n”. Press “▲” or “▼” to display the entire-unit bar code and controller bar code of IDU.
  • Page 20 Duct type split Air conditioner Inverter Series (1) Press and hold the “FUNCTION” button for five seconds. The temperature area displays “C00”. Continuously press the “MODE” button for three times, and then press and hold the “FUNCTION” button for five seconds to enter the engineering parameter setting interface. The temperature area displays “P00”.
  • Page 21 Duct type split Air conditioner Inverter Series Parameter Parameter Name Parameter Range Default Value Remark Code adjustment by 10%. function of IDU Select "01" and then press and hold Factory setting the “ENTER/CANCEL” button to 00: invalid recovery for user restore the factory settings for user 01: valid functions...

  • Page 22: Failure Display

    This will not only improve the productivity, but also reduce cost on human resources, property and management. Gree Commissioning Tool Kits can monitor and control the duct type split air conditioner inverter series. User can monitor and control units by monitoring the computer. This software is an efficient tool for the intelligent air conditioning management as well as installation and after-sales service and commissioning.
  • Page 23 The 1st part is the monitoring computer, including Gree debugger and Gree USB converter driver that are installed in the computer. The 2nd part is Gree USB converter, which is to convert the air conditioning communication into computing communication. This part is made up of Gree USB data converter and USB data wire.
  • Page 24 Duct type split Air conditioner Inverter Series 4.3.2.3 Operation instruction  Power LED: a red light. If the red light is on, it indicates normal power supply. If the red light is off, it indicates the power supply of converter is not normal. ...
  • Page 25  HBS interface: When HBS converter is under HBS communication mode, connect air conditioner’s HBS data interface. HBS interface exhibits no polarity (This interface is not yet available for Gree debugger and the monitoring software).  RS485 interface: When RS485 converter is under RS485 communication mode, connect air conditioner’s RS485 data interface.
  • Page 26 Gree Commissioning Tool Kits is applicable to air conditioning system that comsists of multiple series and models. Later, it will be developed to cover all series of Gree central air conditioners, such as multi VRF, centrifugal chiller, screw type chiller, ground source heat pump units, modular...
  • Page 27 Put the CD into the CD-ROM. If it’s automically running, then the following display will be shown. Or double-click the file “Launcher.exe”. For the first time to use Gree Commissioning Tool Kits, install these programmes: .Net Framework 4.0, USB Data Converter, Access Driver (necessary for versions below OFFICE 2007), Gree Debugger.
  • Page 28 Duct type split Air conditioner Inverter Series 4.4.1.1 Installation flowchart Button Graphics This flowchart describes basically the software installation process. See below for details. 4.4.1.2 Installation process (1) Install .Net Framework 4.0  If your computer has installed .Net Framework 4.0 or versions above, there’s no need to install again.
  • Page 29 Duct type split Air conditioner Inverter Series  Extracting files  Click and select “I have read and accept the license terms”. Then click “Install”.
  • Page 30 Duct type split Air conditioner Inverter Series  Installation is in progress.  Click “Finish” to complete the installation.
  • Page 31 Duct type split Air conditioner Inverter Series (2) Install Access Driver  Before operating Gree commissioning software, please first install Access Driver (necessary for versions below OFFICE 2007). Click “Install Access Driver”.  Click ”Next”.
  • Page 32 Duct type split Air conditioner Inverter Series Tick “I accept the terms in the License Agreement” and then click “Next”   Click “Browse” to change the default folder to the expected one, or click “Install” to continue the installation.
  • Page 33  Installation is in progress. Click “Ok” to complete the installation.  (3) Install Gree Debugger Before installing Gree debugger, make sure that your computer is installed with .Net Framework  4.0 or versions above. Then click “Install Gree Debugger”.
  • Page 34 Duct type split Air conditioner Inverter Series  Click “Next”.  Click “Browse” to select installation folder. If no change is needed for the folder, click “Next” to continue the installation.
  • Page 35 Duct type split Air conditioner Inverter Series  Click “Next”.  Installation is in progress.
  • Page 36 Duct type split Air conditioner Inverter Series  Click “Close” to complete the installation. (4) Install USB Converter Driver  If USB converter driver is already installed in your computer, this part can be skipped. Otherwise, click “Install USB Converter Driver”.
  • Page 37 Duct type split Air conditioner Inverter Series  Then the following installation window will be shown.  This window will exit after installation is finished.
  • Page 38 Duct type split Air conditioner Inverter Series (5) Install Gree USB Data Converter  If converter baud rate is needed to be set, then converter configuring software must be installed. Click “Install Gree USB Data Converter”.  Then select the setup language. You can choose Chinese ”simplified”, Chinese “traditional” or English.
  • Page 39 Duct type split Air conditioner Inverter Series  Tick “I accept the agreement”. Then click “Next” to continue installation. Click “Browse” to select your expected installation folder. Click “Next” to continue. ...
  • Page 40 Duct type split Air conditioner Inverter Series  Click “Browse” to change folder. Click “Next” to continue.  If you want to create s desktop shortcut, tick “Creat a desktop icon”. Then click “Next” to continue.
  • Page 41 Duct type split Air conditioner Inverter Series  Destiniation location, folder and additional task will be shown in the next step. If you need to change any of it, please click “Back”. If not, click “Install” to start installation. Installaiton is in progress. ...
  • Page 42 Duct type split Air conditioner Inverter Series  Click “Finish” to complete the installation. 4.4.2 Data monitoring Start up Gree Debugger.   On the original interface, user can select language and units system. Click “OK” to confirm the defaulted language and units system and start up the software.
  • Page 43 Duct type split Air conditioner Inverter Series  Select language. Select system of units. ...
  • Page 44 Duct type split Air conditioner Inverter Series  If units you want to monitor are already connected, and able to communicate normally, with correct COM and protocal, then you may click “Connect” to enter the interface of numbers. Otherwise, connect in accordance with the connection diagram shown below. ...
  • Page 45 Duct type split Air conditioner Inverter Series  Protocal selection: This is to select the communication method of your units. Currently, CAN is applicable to the units.  After the selection, click “Connnect”. If units can communicate normally with computer, then the interface of numbers will be shown soon.
  • Page 46 Duct type split Air conditioner Inverter Series  There are several display zones on this interface. You can hide devices information and system information by clicking devices information icon and system icon . Display zones of indoor unit information and errors can be dragged up and down at the dividing lines. As to the display zone of outdoor modules information, it can show information of only one module and hide information of others (two modules are defaulted to be shown).
  • Page 47 Duct type split Air conditioner Inverter Series  On the display zone of devices information, you may click to select and view units that need monitoring. 4.4.3 Project debugging  Click icon of “Debug” on the menu bar and the interface will be switched to project debugging, where auto debugging will be started from up to down and from left to right.
  • Page 48 Duct type split Air conditioner Inverter Series  Click “Start” to enable the debugging function. Then debugging will be started up automatically. indicates that debugging is in progress while indicates debugging is completed. If “OK” button is displayed, it means user needs to judge whether to continue debugging or not. ...
  • Page 49 Duct type split Air conditioner Inverter Series  Icon indicates that there is problem found during debugging. Debugging will not be completed unless problem is solved (after problem is solved, step without “OK” button will switch to the next step automatically, otherwise user needs to click “OK” to continue). Click icon and relevant information detected in this step will be displayed for your reference in order to solve problems.
  • Page 50 Duct type split Air conditioner Inverter Series 4.4.4 Control units  Click icon of “Setting” on menu bar and select parameter settings, which include “Gateway Settings”, “IDU Settings”, “System Settings”, “Project Number Conflict (In case there is project number conflict in indoor units, other functions will be shielded.
  • Page 51 Duct type split Air conditioner Inverter Series  Tick the indoor units that need setting in the IDU selection zone or you may click “Select All” to select all of them or “Select Inverted” to select none of them. After selection, the current values of the corresponding parameters will be displayed in the zone of settings.

  • Page 52: Other Functions

    Duct type split Air conditioner Inverter Series 4.4.5 Other functions Capture screen  Click icon of “Capture Screen” to print the interface. If you want to open the interface, click “Open”.
  • Page 53 Duct type split Air conditioner Inverter Series Search for database folder  Click icon of “Open Data Folder” on the menu bar to open database folder.
  • Page 54 Duct type split Air conditioner Inverter Series Conversion of pressure value  Click icon of “Others” on the menu bar and then click “Display Settings” to select “High Low Pressure Value” and “Refrigerant Type”. Select “Temperature” and the pressure parameter displayed on the interface will be temperature.
  • Page 55 Duct type split Air conditioner Inverter Series Database saving of multiple systems  Click icon of “Others” on the menu bar and click “Database Save Settings” to select which system that needs to save database. Because there is a large quantity of data in a network that contains multiple systems, data of only one system can be saved.
  • Page 56 Duct type split Air conditioner Inverter Series Change database saving path and rebuild database  Change of database saving path and rebuilding of database should be set before the software starts monitoring (see below interface). Click “Change database saving path” and click “Browse” to change the saving path.
  • Page 57 LEDs. Notice: If it’s the first time your PC uses Gree USB data converter, in order to prevent Gree USB data converter from being mistaken by your computer as other devices and make sure your mouse can work well, it is necessary to turn off the Serail Enumerator of computer after Gree USB data converter is connected.
  • Page 58 Duct type split Air conditioner Inverter Series...
  • Page 59 Duct type split Air conditioner Inverter Series Step 4: Right-click ”USB Serial Port (COM6) and then click ”Properties”. The dialog box of properties will then pop up. Step 5: Then click ”Port Settings” in the dialog box.
  • Page 60 Duct type split Air conditioner Inverter Series Step 6: Click ”Advanced” and then a new dialog box will pop up. Find the ”Serial Enumerator” in the miscellaneous options and cancel the tick. Click ”OK” to exit.
  • Page 61 Duct type split Air conditioner Inverter Series Usage of converter configuring software:  When the converter is working, hold the button ”SET” for 5 sec. Function LED will be flickering, indicating that the converter has enter the baud rate setting mode. Then you can use the converter configuring software to set the baud rate of converter.
  • Page 62 Duct type split Air conditioner Inverter Series  Select the needed communication serial port and language in the “System Settings”.  Select the function that is to be set and the corresponding baud rate (refer to the look-up table) in the “Converter Setup”.Then click “Set”.
  • Page 63 Duct type split Air conditioner Inverter Series  If you want to restore ex-factory settings, click “Default” to restore the default settings.  Click “Get” to get the current setting details of converter.
  • Page 64 Duct type split Air conditioner Inverter Series  Switchover of Software Languages...

  • Page 65: Installation

    Duct type split Air conditioner Inverter Series INSTALLATION...
  • Page 66 Duct type split Air conditioner Inverter Series 1 Engineering Installation Preparation and Notice 1.1 Installation notice Personnel and property safety are highly concerned during the entire installation process. Installation implementation must abide by relevant national safety regulations to ensure personnel and property safety.

  • Page 67: Refrigerant Piping

    Duct type split Air conditioner Inverter Series Installation Problem Possible Consequence The refrigerant pipe or Water can easily condensate and drip to damage the indoor decoration, or even condensate water pipe does not trigger the protection mode of system due to overheating operation. meet the insulation requirement.
  • Page 68 Duct type split Air conditioner Inverter Series ≥ 0.8 Ф12.70(1/2) ≥ 1.0 Ф15.9(5/8) ≥ 1.0 Ф19.05(3/4) ≥ 1.2 Ф22.20(7/8) ≥ 1.2 Ф25.40(8/8) f. After the inner part of the copper pipe is cleaned and dried, the inlet and outlet must be sealed tightly by using pipe caps, plugs or adhesive tapes.

  • Page 69: Installation Of Indoor Unit 6

    Duct type split Air conditioner Inverter Series Total length of communication line between Material Material type Wire size (mm /AWG) Remarks indoor unit and Standard wired controller L (m/feet) 1.Total length of communication line can't exceed 250m Light/Ordinary (820-1/5feet). polyvinyl 2.The cord shall be Circular cord chloride L≤250m...

  • Page 70: Installation Space

    Duct type split Air conditioner Inverter Series b. 40kW Below are dimensions of A, B, C, etc. for different models: Unit: mm Model FGR20Pd/DNa-X(I) 1334 1150 FGR25Pd/DNa-X(I) 1541 1350 FGR30Pd/DNa-X(I) 1541 1350 FGR40Pd/D(2)Na-X(I) 1730 1054 1450 3.2 Installation space 3.3 External static pressure setting and reading 3.3.1 External static pressure setting...
  • Page 71 Duct type split Air conditioner Inverter Series .You can enter P30 to set the value. ① Long press FUNCTION button for 5s and the temperature zone displays “C00”; long press FUNCTION button for another 5s to enter the interface of setting wired controller parameters. “P00” is displayed in temperature zone.
  • Page 72 ◆ Please contact the local Gree appointed service center before installation. Any malfunctioncaused by the unit that is not installed by the Gree appointed service center would probably not be dealt with on time because of the inconvenience of the business contact.

  • Page 73: Installation Of Outdoor Unit

    Duct type split Air conditioner Inverter Series FGR25Pd/DNa-X(I) 1×1.5 2×1.5 220V~50/60HZ FGR30Pd/DNa-X(I) 1×1.5 2×1.5 220V~50/60HZ FGR40Pd/D(2)Na-X(I) 1×1.5 4×1.5 3N~ 380V 50/60HZ 4 Installation of outdoor unit 4.1 Check before installation a. Before installation, please check the power cord if it complies with the power supply requirement on the nameplate.
  • Page 74 When carrying the outdoor unit, hang the unit in four directions with two sufficient ropes. In order to avoid excursion from the center, the angel of ropes must be smaller than 40º during hanging and moving. Unit: mm Model FGR20Pd/DNa-X(O) 1430 FGR25Pd/DNa-X(O) 1615...

  • Page 75: Installation Of Drain Pipe

    Duct type split Air conditioner Inverter Series 1615 FGR30Pd/DNa-X(O) 4.7 Installation space requirement If all sides of the ODU (including the top) are surrounded by walls, process according to the following requirements for installation space: 5 Installation of drain pipe 5.1 Precautions When Doing the Piping Work ◆...
  • Page 76 Duct type split Air conditioner Inverter Series ◆ Drain hose connectedto the indoor unitCommercially availablehard vinyl chloride pipejoint (nominal diameter 13mm)Commercially availablehard vinyl chloride pipe(nominal diameter 13mm) ◆Do not connect the drain piping directly to sewage pipes that smell of ammonia. The ammonia in the sewage might enter the indoor unit through the drain pipes and corrode the heat exchanger.
  • Page 77 Duct type split Air conditioner Inverter Series NO2: Connection of drain elbow NO3: Connection of horizontal pipe ◆ When unifying multiple drain pipes, install the pipes as shown below. Select converging drain pipes whose gauge is suitable for the operating capacity of the unit.(take the cassette type unit for example) 5.3 Precautions when doing riser piping work ◆Make sure that heat insulation work is executed on the following 2 spots to prevent any possible...

  • Page 78: Electrical Installation

    Duct type split Air conditioner Inverter Series water leakage due to dew condensation. a) Connect the drain hose to the drain raiser pipe, and insulate them. b) Connect the drain hose to the drain outlet on the indoor unit, and tighten it with the clamp. ◆Stand the raiser piping horizontally, and make sure it is not further than 300 mm from the base of the drain outlet.
  • Page 79 Duct type split Air conditioner Inverter Series ◆The wiring must be in accordance with the local rules. ◆Rated supply voltage and special circuit for air conditioner must be used. ◆Do not pull the power cord forcefully. ◆All the electric installations must be carried out by specialist technicians in accordance with the local laws, rules and these instructions.

  • Page 80: Debugging & Maintenance

    Duct type split Air conditioner Inverter Series DEBUGGING & MAINTENANCE...

  • Page 81: Troubleshooting 8

    Duct type split Air conditioner Inverter Series 1 Debugging of Unit Caution: After the initial installation is finished and the main board of outdoor unit is replaced, it must perform debugging. Otherwise, the unit can’t operate. The debugging must be performed by professional person or under the the guide of professional person.
  • Page 82 Duct type split Air conditioner Inverter Series 1.2.2 Test Operation and Debugging Once the unit is energized and turned on for the first time, the display tube of outdoor unit displays “A0”, which indicates debugging standby status. At this time, hold SW3 button successively for 5s on the main module to enter into the automatic debugging, and then the engineering debugging will perform according to the set procedures.
  • Page 83 Duct type split Air conditioner Inverter Series status. Functions of debugging buttons: Key No. Function Down Back Buttons and digital display tube on the motherboard location： Debugging procedure for test run, display instruction for indicator on main board of outdoor unit and operation method are as below: Description of each stage of debugging progress ——...
  • Page 84 Duct type split Air conditioner Inverter Series Description of each stage of debugging progress —— Debugging Code Instruction for Code and Operating Method Progress Display Display Code Code Display It is not allowed to connect more than one indoor unit in the 04/Cb 04_ Confirm the repeatedly...
  • Page 85 Duct type split Air conditioner Inverter Series ●In cooling mode, defrosting temp is 4~10 ℃ Defrosting lower than system’s high pressure value; ℃ temperature ●In heating mode, defrosting temp is about 2℃ different from system’s low pressure value. ●In cooling mode, the normal high pressure value is within 20℃~55℃.
  • Page 86 Duct type split Air conditioner Inverter Series Power supply Abnormal code-dialing of wired controller Poor indoor PCB setting of capacity is faulted Freeze prevention Malfunction of ambient Malfunction of air exhause protection temperature sensor temperature sensor Malfunction of entry tube Malfunction of indoor C0 Mode shock temperature sensor...

  • Page 87: Troubleshooting

    Duct type split Air conditioner Inverter Series Display Display Display Content Content Content code code code Communication malfunction Driven communication Refrigerant-charging for indoor unit, outdoor unit malfunction between is invalid and wired controller of indoor main board and inverter unit compressor Driven Alarming due to...
  • Page 88 Duct type split Air conditioner Inverter Series Replace main control board directly 3.1.2 “d3” Ambient temperature sensor error Error display: IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD value, If the sampling AD value exceeds upper limit and lower limit in 5 seconds continuously, report the error Possible reason：...
  • Page 89 Duct type split Air conditioner Inverter Series 3.1.4 “d6” Outlet pipe temperature sensor error Error display: IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD value.
  • Page 90 Duct type split Air conditioner Inverter Series 3.1.5 “d9” Jumper cap error Error display: IDU wired controller and IDU receive light board will display Error judgment condition and method: Possible reason： If jumper cap model doesn’t match with mainboard, report the error ■Jumper cap is not installed ■Jumper cap model is wrong ■Detecting circuit is abnormal...
  • Page 91 Duct type split Air conditioner Inverter Series 3.1.6 “dH” wired controller circuit board error Error display: IDU wired controller and IDU receive light board will display Error judgment condition and method: Wired controller IIC communication is abnormal Possible reason： ■Communication of wired controller touch button board and display board IIC is abnormal; ■Read and write of wired controller memory chip IIC is abnormal (when memory chip is existed);...
  • Page 92 Duct type split Air conditioner Inverter Series 3.1.8 “db” Project debugging Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: This is a status code of project debugging, not a error code. When IDU or ODU displays this code, it means the unit is under debugging status and the IDU cannot be operated.
  • Page 93 Duct type split Air conditioner Inverter Series 3.1.10 “L4” Power supply overcurrent protection Error display: IDU wired controller and IDU receive light board will display Error judgment condition and method: Check if the power supply current from IDU to wired controller is normal. If power supply current is too big, it is judged that the current is abnormal.
  • Page 94 Duct type split Air conditioner Inverter Series Possible reason： ■Power supply conducting wire of wired controller is short circuited ■IDU mainboard is abnormal ■Mainboard of wired controller is abnormal Troubleshooting: 3.1.11 “L5” Freeze protection Error display: IDU wired controller and IDU receive light board will display Error judgment condition and method: Check IDU pipe temperature.
  • Page 95 Duct type split Air conditioner Inverter Series 3.1.12 “LC” Mismatch of IDU and ODU models Error display: IDU wired controller and IDU receive light board will display Error judgment condition and method: When some IDUs or devices which cannot be identified by some ODUs are installed in the system, mismatch error of IDU and ODU models will occur.
  • Page 96 Duct type split Air conditioner Inverter Series...
  • Page 97 Duct type split Air conditioner Inverter Series 3.2.2 High pressure protection 3.2.3 Low-pressure protection...
  • Page 98 Duct type split Air conditioner Inverter Series Low pressure protection Measure Replace main whether the Measure whether the low pressure board of outdoor is too low with manometer pressure switch unit is normal Replace pressure switch Charge refrigerant according to the volume Check whether the refrigerant- on nameplate;...
  • Page 99 Duct type split Air conditioner Inverter Series 3.2.4 Discharge temperature protection 3.2.5 Mafunction of temperature sensor...
  • Page 100 Duct type split Air conditioner Inverter Series 3.2.6 Malfunction of sensor 3.2.7 Unit and main board can’t be energized Unit and main board can’t be energized Check whether it’s the malfunction of Measure whether voltage between pole L and pole N of wiring board is 220V power supply for wiring board Replace filter...
  • Page 101 Duct type split Air conditioner Inverter Series 3.2.8 Failure start-up 3.2.9 Reset protection for drive module of compressor, drive PFC protection for compressor, malfunction of drive temperature sensor for compressor, circuit malfunction of drive current detection for compressor 3.2.10 Drive IPM overtemperature protection for compressor...
  • Page 102 Duct type split Air conditioner Inverter Series Wired controller displays P0 LED3 dual-8 nixie tube displays P8 Whether two IPM module is tightened? Replace main Tighten board module Work normally...
  • Page 103 Duct type split Air conditioner Inverter Series 3.2.11 Desynchronizing protection for inverter compressor 3.2.12 Failure startup for inverter compressor...
  • Page 104 Duct type split Air conditioner Inverter Series 3.2.13 Loop malfunction of driven charging for compressor 3.2.14 Malfunction of memory chip for inverter compressor...
  • Page 105 Duct type split Air conditioner Inverter Series 3.2.15 Overcurrent protection for inverter compressor, IPM module protection, phase-lacking of inverter compressor 3.2.16 High pressure protection for driven DC bus bar of compressor, low pressure protection for driven DC bus bar of compressor...

  • Page 106: After-Sales Emergency Masures

    Duct type split Air conditioner Inverter Series 3.2.17 AC current protection for inverter compressor 3.2.18 Communication malfunction between main contoller and driver of inverter compressor 4 After-sales Emergency Masures When some unrecoverable fault occurs to one module which is connected with several others in parallel, the following emergency measures are recommended to guarantee the heating or cooling...

  • Page 107: Wiring Diagram

    Step 5: readjust the address and quantity settings on the main board of the modules except the faulted one. Step 6: power and restart the unit. 5 Wiring Diagram Advertence: These diagrams only for reference ,the actually diagram please reference the diagram on actually unit. FGR20Pd/DNa-X(I)/FGR25Pd/DNa-X(I)/FGR30Pd/DNa-X(I)： FGR40Pd/D(2)Na-X(I)：...
  • Page 108 Duct type split Air conditioner Inverter Series FGR20Pd/DNa-X(O)： FGR25Pd/DNa-X(O)：...

  • Page 109: Disassembly And Assembly Procedure Of Main Parts

    Duct type split Air conditioner Inverter Series FGR30Pd/DNa-X(O)： 6 Disassembly And Assembly Procedure Of Main Parts...
  • Page 110 Duct type split Air conditioner Inverter Series Introduction to Main Parts Disassembly and Assembly of Compressor Remark: Make sure that there isn’t any refrigerant in pipe system and the power supply is cut off before removal of the compressor Step Illustration Handling Instruction ①Unscrew the retaining screw of...

  • Page 111: Exploded Views And Part List

    Remove 4-way valve after it is Remove the 4-way valve cooled. Install new 4-way valve in reversed order and wrap it with wet cloth before welding. 7 Exploded Views And Part List 7.1 Indoor Unit 1、Model: FGR20Pd/DNa-X(I)、FGR25Pd/DNa-X(I)、FGR30Pd/DNa-X(I) Exploded View:...
  • Page 112 Duct type split Air conditioner Inverter Series FGR30Pd/DNa-X(I) Model FGR20Pd/DNa-X(I) FGR25Pd/DNa-X(I) CF010N0750 Product Code CF010N0730 CF010N0740 Part Code Part Name Part Code Part Code 11724102 Filter Sub-Assy 11725211 11724102 01284306 Water Tray Assy 01284620 01284306 300001000097 Display Board 300001000097 300001000097...
  • Page 113 Duct type split Air conditioner Inverter Series FGR30Pd/DNa-X(I) Model FGR20Pd/DNa-X(I) FGR25Pd/DNa-X(I) CF010N0750 Product Code CF010N0730 CF010N0740 Part Code Part Name Part Code Part Code 011001000271 Evaporator Assy 011001000372 011001000371 10300400004701 Motor for Centrifugal Fan(Right Type) 15705307 1570411801 15704100009 Brushless DC Motor...
  • Page 114 Electric Expand Valve Fitting 4304413205 Electric Box Assy 100002001945 Strainer 0741410000601 Electronic Expansion Valve 43044100190 Strainer 07415210 Evaporator Assy 011001000429 Access panel sub-assy 000170000001 Filter Sub-Assy 07210029 Temperature Sensor 3900028024G Temperature Sensor 3900028022G Ambient Temperature Sensor 39000198G 7.2 Outdoor Unit 1、Model:FGR20Pd/DNa-X(O)、FGR25Pd/DNa-X(O) Exploded View:...
  • Page 115 Duct type split Air conditioner Inverter Series Model FGR20Pd/DNa-X(O) FGR25Pd/DNa-X(O) Product Code CF010W0730 CF010W0740 Part Name Part Code Part Code Front Grill 01572800003 01572800003 Diversion Circle 10474100003 10474100003 Cabinet Assy 01514100015 01514100023 Left Side Plate 01314100084P 01314100090P Handle 26235253 Front Side Plate...
  • Page 116 Duct type split Air conditioner Inverter Series Model FGR20Pd/DNa-X(O) FGR25Pd/DNa-X(O) Product Code CF010W0730 CF010W0740 Part Name Part Code Part Code One Way Valve 07133618 04324001 Electronic Expansion Valve 43044100173 43044100173 Electric Expand Valve Fitting 4304413219 4304413205 Gas-liquid Separator 07424140 07424141...
  • Page 117 Duct type split Air conditioner Inverter Series Model FGR30Pd/DNa-X(O) Product Code CF010W0750 Part Name Part Code Front Grill 01572800003 Diversion Circle 10474100003 Cabinet 01514100016P Front Side Plate 01314100091P Handle 26235253 Axial Flow Fan 10434100008 Brushless DC Motor 15704100010 Brushless DC Motor 1570410001001 Chassis Assy 209058000011...
  • Page 118 Duct type split Air conditioner Inverter Series Model FGR30Pd/DNa-X(O) Product Code CF010W0750 Part Name Part Code One way Valve 04324001 Electronic Expansion Valve 43044100190 Reactor 4313017401 Terminal board 42011221 Terminal board 420001000019 Main Board 30223000039 Electric Box Assy 100002001274 Radiator 49018000080 Radiator 49018000088...

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Fgr30pd/dna-xFgr20pd/dna-xFgr40pd/d(2)na-x

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