Gree FGR20Pd/DNa-X Owner's Manual
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Gree FGR20Pd/DNa-X Owner's Manual

Ducted type split air-conditioner units(inverter series)
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Owner's Manual
Original Instructions
Commercial Air Conditioners
Ducted Type Split Air-Conditioner Units(Inverter
Series)
Models:
FGR20Pd/DNa-X
FGR25Pd/DNa-X
FGR30Pd/DNa-X
FGR40Pd/D(2)Na-X

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Summary of Contents for Gree FGR20Pd/DNa-X

  • Page 1 Owner's Manual Original Instructions Commercial Air Conditioners Ducted Type Split Air-Conditioner Units(Inverter Series) Models: FGR20Pd/DNa-X FGR25Pd/DNa-X FGR30Pd/DNa-X FGR40Pd/D(2)Na-X...
  • Page 2 To Users Thank you for selecting Gree product. Please read this instruction manual carefully before installing and using the product, so as to master and correctly use the product. In order to guide you to correctly install and use our product and...
  • Page 3 Exception Clauses Manufacturer will bear no responsibilities when personal injury or property loss is caused by the following reasons: Damage the product due to improper use or misuse of the product. Alter, change, maintain or use the product with other equipment without abiding by the instruction manual of manufacturer.

  • Page 4: Table Of Contents

    CONTENTS 1 Safety Precautions ............1 1.1 Safety Notices (Please be sure to abide ) ......1 1.2 Power Supply Demand ............1 2 Installation of Indoor Unit ..........2 2.1 Selection Proper Installation Location ........2 2.2 Outline Dimension and Installation Spots .......2 2.3 Drainage Pipe Installation and Drainage System Testing ..6 2.4 Installation of Air Duct ............8 2.5 Indoor unit static pressure notch adjustment ......9...
  • Page 5 7.4 Maintenance after Seasonal Use ......... 34 7.5 Parts Replacement .............. 35 8 After-sales Service ............35...

  • Page 6: Safety Precautions

    Ducted Type Split Air-Conditioner Units(Inverter Series) 1 Safety Precautions 1.1 Safety Notices (Please be sure to abide ) WARNING: If not abide strictly, it may cause severe damage to the unit or the people. NOTE: If not abide strictly, it may cause slight or medium damage to the unit or the people.

  • Page 7: Installation Of Indoor Unit

    Ducted Type Split Air-Conditioner Units(Inverter Series) (3) Make sure that the wiring is done by the qualified technicians according to the relevant regulations. (4) In fixed circuit, there must be electricity leakage protection switch of enough power capacity and air switch with enough space. (5) An all-pole disconnection device which has at least 3mm separation distance in all pole and a residual current device(RCD)with the rating of above 10mA shall be incorporated in the fixed wiring according to the...
  • Page 8 Ducted Type Split Air-Conditioner Units(Inverter Series) (1) Below are the outline dimension applicable to indoor units: a.20/25/30kW b. 40kW Fig.1...
  • Page 9 Ducted Type Split Air-Conditioner Units(Inverter Series) Below are dimensions of A,B,C, etc. for different models: Unit: mm Size of air Size of air supply return Model FGR20Pd/DNa-X(I) 1355 1150 1315 FGR25Pd/DNa-X(I) 1563 1350 1520 FGR30Pd/DNa-X(I) 1563 1350 1520 FGR40Pd/D(2)Na-X(I) 1730...
  • Page 10 Ducted Type Split Air-Conditioner Units(Inverter Series) Fig.4 (3) Install the indoor unit temporarily. Assemble suspension bolt on the expansion bolt, attach the hanger bracket to the suspension bolt. Be sure to fix it securely by using a nut and washer from upper and lower sides of the hanger bracket.

  • Page 11: Drainage Pipe Installation And Drainage System Testing

    Ducted Type Split Air-Conditioner Units(Inverter Series) Unit:mm Fig.6 2.3 Drainage Pipe Installation and Drainage System Testing 2.3.1 Notice for Installation of Drain Pipe (1) The drainage pipe should be short and the gradient downwards should be at least 1%~2% in order to drain condensation water smoothly. (2) The diameter of drainage hose should be bigger or equal to the diameter of drainage pipe joint.
  • Page 12 Ducted Type Split Air-Conditioner Units(Inverter Series) Fig.7 2.3.2 Drainage Pipe Installation For easy drainage of the condensation water, the drainage pipe should be installed with a downward gradient. To avoid the condensation, the connection pipe joint should be insulated with thermal insulation material. A water seal should be employed as shown in Fig.8 and the height of the water seal could be determined by the pressure of the drain hose.

  • Page 13: Installation Of Air Duct

    Ducted Type Split Air-Conditioner Units(Inverter Series) 2.3.3 Test of Drainage System (1) Inject approximately 1L purified water to drain pan from air vent, ensure that not to splash the water over the electrical components (e.g. water pump. etc.). (2) During the test, please carefully check the drainage joint, make sure no any leakage occur.

  • Page 14: Indoor Unit Static Pressure Notch Adjustment

    Ducted Type Split Air-Conditioner Units(Inverter Series) For instance, do not have the return-air opening installed on top of the user (offices, rest area, etc.). 2.4.1Installation of Air-out Duct Installation of the rectangular duct. Fig.10 2.5 Indoor unit static pressure notch adjustment These can set different static pressure notch by the wired controller.

  • Page 15: Installation Of Wired Controller

    Ducted Type Split Air-Conditioner Units(Inverter Series) 2.6 Installation of Wired Controller Please refer to User Manual of Wired Controller for the installation details. NOTES! When installation is finished, the unit must be tested and debugged before operation. Please refer to Instruction Manual of ODU for auto addressing and debugging details.
  • Page 16 Ducted Type Split Air-Conditioner Units(Inverter Series) 3) Shape the tail of wire into ring by needle nose plier, and keep the gauge of ring in accordance with screw. 4) Use the screwdriver for tightening the terminal. (2) The connection of stranded wire (as shown in fig.14) 1) Strip about 10mm insulation of the end of stranded wire by stripping and cutting tool.

  • Page 17: Installation Of Outdoor Unit

    Ducted Type Split Air-Conditioner Units(Inverter Series) Fig.15 2.7.3 Illuminate for Connection of Wired Controller and Indoor Units Network (1) Communication wire of indoor unit and outdoor unit (or indoor unit) is connected to D1, D2. (2) Wired controller is connected to H1, H2. (3) One indoor unit can connect two wired controllers that must be set as master one and slave one.

  • Page 18: Dimension Of Outdoor Unit And Mounting Hole

    Ducted Type Split Air-Conditioner Units(Inverter Series) 3.1 Dimension of Outdoor Unit and Mounting Hole Unit Outline and Installation Dimension: Fig.16 Unit: mm Model FGR20Pd/DNa-X(O) 1430 FGR25Pd/DNa-X(O) 1615 FGR30Pd/DNa-X(O) 1615...

  • Page 19: Installation Space Requirement

    Ducted Type Split Air-Conditioner Units(Inverter Series) 3.2 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: Unit:mm Fig.17 3.3 Refrigerant Pipe Connection NOTE: Do not loosen the cap of the pipes when connecting the pipes between the indoor unit and the outdoor unit.

  • Page 20: Vacuum Pumping, Refrigerant Adding

    Ducted Type Split Air-Conditioner Units(Inverter Series) The pipes should not be shriveled when the pipes are connecting. The bend diameter should be longer than 200 millimeter. The connecting pipes should not be extended or curved frequently and the curving process should not be larger than 3 times in the same bending position.

  • Page 21: Electric Wiring

    Ducted Type Split Air-Conditioner Units(Inverter Series) (3) Calculation of the amount of additional refrigerant： Quantity of additional refrigerant per meter for liquid pipe（kg/m） Φ12.7mm Φ9.52mm 0.11 0.054 3.5 Electric Wiring 3.5.1 Notices for Wiring (1) Install units according to national wiring codes. (2) Use air conditioner specialized power supply and make sure that it is consistent with system’s rated voltage.
  • Page 22 Ducted Type Split Air-Conditioner Units(Inverter Series) ① Water pipe；②Gas pipe；③Drain pipe；④Other places that are deemed as not secure by professional technicians. 3.5.2 Wiring Diagram 1) Connection of power cord and communication wire. Separate power supply for IDU and ODU. Fig.19...
  • Page 23 Circuit Number of Number of breaker ground wire × power cord × Model Power supply capacity Min sectional Min sectional area (mm area (mm FGR20Pd/DNa-X 380-415V 3N~ 1×2.5 4×2.5 50/60Hz FGR20Pd/DNa-X 220-240V ~ 1×1.5 2×1.5 50/60Hz FGR25Pd/DNa-X 380-415V 3N~ 1×2.5 4×2.5...

  • Page 24: Check Items After Installation And Test Operation

    Ducted Type Split Air-Conditioner Units(Inverter Series) NOTES! ① Selection of circuit breaker and power cord in the above table is based upon unit’s maximum power (maximum current). ② Specification of power cord is based on the working condition where ambient temperature is 40 ℃ and multi-core copper cable (working temperature is 90℃, e.g.

  • Page 25: Test Operation And Debugging

    Ducted Type Split Air-Conditioner Units(Inverter Series) Possible conditions due to Check items Check improper installation. Insufficient cooling (heating) Is the air inlet/outlet blocked? capacity. Length of refrigerant pipe and the The refrigerant charging charging amount of refrigerant are amount is not accurate. recorded or not? Binding pieces on compressor feet Compressor may get...
  • Page 26 Ducted Type Split Air-Conditioner Units(Inverter Series) (8) For the convenience of troubleshooting during debugging, unit shall be connected to a PC with applicable debugging software. Make sure unit’s real-time data can be checked through this computer. The installation and connection of debugging software can be found in the Service Manual. (9) Before test operation, make sure unit is power on and compressor has been preheated for more than 8 hours.
  • Page 27 Ducted Type Split Air-Conditioner Units(Inverter Series) Buttons and digital display tube on the motherboard location: Fig.21 Instruction: Indicator of main board (digital display tube) “LED1” and four button: ① “SW1”, “SW2”, “SW3” and “SW4”. Key No. Function Down Back Jumper cap of the unit “JUMP1”, jumper cap No. varies from different ②...
  • Page 28 Ducted Type Split Air-Conditioner Units(Inverter Series) Function Master module Subsidiary module 4.2.2.1 Basic Operation of Project Debugging (1) Start project debugging. Press “SW3” button consecutively in the master module for over 5s to enter auto debugging. (2) Exit project debugging. After entering project debugging, press “SW3”...
  • Page 29 Ducted Type Split Air-Conditioner Units(Inverter Series) Flow-process diagram of debugging: 01:Set master unit 02:Allocate addresses 03:Confirm the quantity of ODU 04:Confirm the quantity of IDU 05:Detect ODU’s internal communication 06:Detect outdoor components 07:Detect indoor components 08:Confirm preheated compressor 09:Confirm status of valve of ODU 10:Debugging completed status...
  • Page 30 Ducted Type Split Air-Conditioner Units(Inverter Series) 4.2.2.2 Debugging Process 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 —— Debugging code Instruction for Code and Operating Method Progress Display...
  • Page 31 Ducted Type Split Air-Conditioner Units(Inverter Series) Description of each stage of debugging progress —— Debugging code Instruction for Code and Operating Method Progress Display Display code status The quantity of indoor unit is more than 1. Display 04/Cb The system shall not connect more than 1 indoor unit, after repeatedly 04_Confirm inspection, please redebug for confirmation.
  • Page 32 Ducted Type Split Air-Conditioner Units(Inverter Series) Description of each stage of debugging progress —— Debugging code Instruction for Code and Operating Method Progress Display Display code status Component error of indoor unit. After eliminating all the errors, enter the next step 07/ Corresponding Display automatically, if the ODU should be powered off for...

  • Page 33: Common Malfunctions And Troubleshooting

    ② Do not repair the air conditioner by yourself. Improper maintenance may lead electric shock or fire hazard. Please contact Gree authorized service center for maintenance. ③ Please check the items below before calling for maintenance.
  • Page 34 Too many heat resources in the Reduce heat room. resources. Filter is blocked and dirty. Clean the filter. NOTES! If problem cannot be solved after checking the above items, please contact Gree service center and describe the cases and models.

  • Page 35: Error Indication

    Ducted Type Split Air-Conditioner Units(Inverter Series) Following circumstances are not malfunctions： Malfunction Reason Unit starts up immediately Overload protection switch makes it Unit doesn’t after it is turned off. run after a 3-min delay. run. Standby operation lasts for about Power is just turned on.
  • Page 36 Ducted Type Split Air-Conditioner Units(Inverter Series) Content symbol Division symbol High discharge High discharge Discharge Malfunction of High-pressure Low-pressure temperature temperature low-temperature ODU (uniform) protection protection protection of protection of protection compressor compressor 1 Malfunction of Malfunction of Malfunction of discharge Main board of high-pressure...
  • Page 37 Ducted Type Split Air-Conditioner Units(Inverter Series) Content symbol Division symbol Alarm due to Power 1-to-more: 1-to-more: bad air Mode shock No main IDU supply is number of IDU IDU series is quality insufficient is inconsistent inconsistent (Fresh air unit) Malfunction of PCB of Malfunction Web address...
  • Page 38 Ducted Type Split Air-Conditioner Units(Inverter Series) Content symbol Division symbol Models for IDU and ODU are not matched Malfunction of Malfunction of Abnormal setting air-outlet indoor CO for capacity temperature sensor (fresh button sensor(Fresh air air unit) unit) Drop protection of discharge temperature sensor of...

  • Page 39: Maintenance And Care

    (6) Check whether outdoor unit is securely installed. If there is any problem, please contact Gree authorized service center. 7.4 Maintenance after Seasonal Use (1) Disconnect power of the entire system.
  • Page 40 Otherwise, it may lead to danger. Use nitrogen or refrigerant to conduct the tests. 8 After-sales Service If there’s quality defect or other problems in the product, please contact Gree local after-sales service department for help. Warranty must be based on the following conditions: (1) Product’s initial startup must be performed by professional technicians...

This manual is also suitable for:

Fgr25pd/dna-xFgr30pd/dna-xFgr40pd/dna-xFgr40pd/d2na-x

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