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Ducted Type Split Air-Conditioner Units(Inverter Series) 

20 

Problems 

Causes 

What to do 

Unit doesn’t work. 

Fuse or circuit breaker is cut off. 

Replace fuse or reset the circuit 

breaker. 

Power failure. 

Restart unit when power is 

restored. 

Power is not connected. 

Connect the power. 

Remote controller’s power is not enough. 

Replace new battery. 

Remote controller is out of the control range. 

Control range is within 8m. 

Unit runs but stops 

immediately. 

Air inlet or air outlet of indoor and outdoor units is 

blocked. 

Clear obstructions. 

Abnormal cooling or 

heating 

Air inlet or air outlet of indoor and outdoor units is 

blocked. 

Clear obstructions. 

Improper temp setting. 

Adjust setting at remote controller 

or wired controller. 

Fan speed is set too low. 

Adjust setting at remote controller 

or wired controller. 

Wind direction is not correct. 

Adjust setting at remote controller 

or wired controller. 

Door or window is open. 

Close the door or window. 

Direct sunshine. 

Draw curtain or louver. 

Too many people in the room. 

Too many heat resources in the room. 

Reduce heat 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. 

Following circumstances are not malfunctions

 

Malfunction 

Reason 

Unit doesn’t run. 

Unit starts up immediately after it is 
turned off. 

Overload protection switch makes it run after a 
3-min delay. 

Power is just turned on. 

Standby operation lasts for about 1min. 

Mist comes from 
the unit. 

Under cooling. 

Indoor air with high humidity is cooled rapidly. 

Noise is emitted. 

Slight cracking sound is heard when unit 
is just turned on. 

It is the noise when electronic expansion valve is 
initialized. 

There is consecutive sound when 
cooling. 

It is the sound for gas refrigerant flowing in the 
unit. 

There is sound when unit starts or stops. 

It is the sound when gas refrigerant stops 
flowing. 

There is slight and consecutive sound 
when unit is running or after running. 

This is the sound of drainage operation. 

Cracking sound is heard when unit is 
running or after running. 

This is the sound caused by the expansion of 
panel and other parts of the unit due to 
temperature change. 

Unit blows out 
dust. 

Unit starts up after not operating for a 
long time. 

Dust in indoor unit is blown out. 

Unit emits odor. 

Under operation. 

Unit absorbs the room odor and then blows it 
out. 

 
 

Summary of Contents for FGR50Pd/D2Na-M

Page 1: ...Owner s Manual Original Instructions Commercial Air Conditioners Ducted Type Split Air Conditioner Units Inverter Series Models FGR50Pd D 2 Na M FGR60Pd D 2 Na M...

Page 2: ...mage due to improper disassembly and inspection which may impact the normal operation of unit please do not disassemble the unit by yourself You can contact with the special maintenance center of our...

Page 3: ...rer will bear no responsibilities when personal injury or property loss is caused by the following reasons 1 Damage the product due to improper use or misuse of the product 2 Alter change maintain or...

Page 4: ...Outdoor Unit 8 3 1 Dimension of Outdoor Unit and Mounting Hole 9 3 2 Installation Space Requirement 9 3 3 Refrigerant Pipe Connection 9 3 4 Vacuum Pumping Refrigerant Adding 10 3 5 Electric Wiring 11...

Page 5: ...place with special requirements such as kitchen or washing room Otherwise it will affect the normal operation or shorten the service life of the unit or even cause fire hazard or serious injury As fo...

Page 6: ...terial fog dusk or moist 2 2 Outline Dimension and Installation Spots Equip with an inspection hatch after lifting the unit For the convenience of maintenance the service port should be on one side of...

Page 7: ...y using a nut and washer from upper and lower sides of the hanger bracket The washer fixing plate will prevent the washer from falling 4 The usage of paper pattern Refer to paper pattern of installati...

Page 8: ...e diameter of drainage pipe joint 3 Install drainage pipe according to the following fig and arrange insulation to the drainage pipe Improper installation may lead to water leakage and damp the furnit...

Page 9: ...ould be determined by the pressure of the drain hose Drain hose is in negative pressure state A B P 10 20 mm Drain hose is in positive pressure state A 30mm B P 10 20 mm NOTE P is the absolute pressur...

Page 10: ...nt air leakage The design and construction of air duct should comply with national requirements The edge of air return duct is suggested to be more than 150mm 5 7 8 inch away from the wall Add a filte...

Page 11: ...wered by independent circuit and specific socket 4 The wiring should be in accordance with related regulations in order to ensure the units reliable running 5 Install circuit breaker for branch circui...

Page 12: ...terminal H1 and H2 of indoor 4 bit wiring board 4 Fix the communication wire with wire clip on the electric box 5 Wiring instructions of remote receiving light board and wired controller Fig 15 2 6 3...

Page 13: ...tallation space Unit mm Fig 17 3 3 Refrigerant Pipe Connection NOTES Do not loosen the cap of the pipes when connecting the pipes between the indoor unit and the outdoor unit Connecting the pipes as s...

Page 14: ...he curving process should not be larger than 3 times in the same bending position During engineering installation the connection pipe inside the unit must be wrapped by insulation sleeve 3 4 Vacuum Pu...

Page 15: ...ing codes 2 Use air conditioner specialized power supply and make sure that it is consistent with system s rated voltage 3 Do not pull the power cord with force 4 All electrical installation must be p...

Page 16: ...wire to the following Water pipe Gas pipe Drain pipe Other places that are deemed as not secure by professional technicians 3 5 2 Wiring Diagram 1 Connection of power cord and communication wire Separ...

Page 17: ...king condition changes please adjust the specification according to national standard 4 Check Items After Installation and Test Operation 4 1 Check Items After Installation Check items Possible condit...

Page 18: ...ding refrigerant during test operation see below 7 After refrigerant is added make sure valves of outdoor unit are completely open 8 For the convenience of troubleshooting during debugging unit shall...

Page 19: ...varies from different type DIP switch SAI DIP switch varies from different cooling capcity before leaving the factory DIP switch is set for different models and fixed with glue The main control functi...

Page 20: ...over 5s to enter auto debugging 2 Exit project debugging After entering project debugging press SW3 button consecutively in the master module for over 5s to exit the debugging 3 Complete project debu...

Page 21: ...for Code and Operating Method Progress LED Display code Display status Start A0 Always ON No debugged yeat Press SW3 button consecutively in the master module for over 5s to enter auto debugging 01_M...

Page 22: ...l enter the next step 2s later 05_ Internal communication of outdoor unit 05 C2 Display repeatedly Communication error between master control and compressor drive Please check the connection between t...

Page 23: ...mong different modules are correctly connected 09 oC Display repeatedly Confirmation of valve status All modules are halted normally nixie tubes of all modules will display once circularly 10_ Debuggi...

Page 24: ...the filter NOTES If problem cannot be solved after checking the above items please contact Gree service center and describe the cases and models Following circumstances are not malfunctions Malfunctio...

Page 25: ...scharge temperature protection of compressor 1 F Main board of ODU is poor Malfunction of high pressur e sensor Malfunction of low pressure sensor Malfunction of discharge temperature sensor of compre...

Page 26: ...e shock No main IDU Power supply is insufficient 1 to more number of IDU is inconsistent 1 to more IDU series is inconsistent Alarm due to bad air quality Fresh air unit d Malfunction of exit tube tem...

Page 27: ...pressur e protection P Drive current detection circuit malfunction of compressor Low voltage protection of compressor s drive DC bus bar Phase lacki ng of inverter compressor Drive charging circuit ma...

Page 28: ...7 2 Drain Pipe Please check regularly whether drain pipe is blocked or not Make sure condensate can be drained out smoothly 7 3 Notice Before Seasonal Use 1 Check whether air inlets and air outlets o...

Page 29: ...uct 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...

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