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Ducted Type Split Air-Conditioner Units(Inverter Series) 

24 

 

Content 

symbol 

Division 

symbol 

D

ebugg

ing

 

Communication 

malfunction 

between IDU 

and the 

receiving lamp 

plate 

Overflow 

distribution of IP 

address 

S

ta

tu

Long-distance 

emergency stop 

Emergency stop 

of operation 

Limit operation 

7 Maintenance and Care 

Regular check, maintenance and care can extend unit’s service life. Please have specialized 

person in charge of the management of air conditioners. 

7.1 Outdoor Heat Exchanger 

Outdoor heat exchanger shall be cleaned regularly, which is at least once every two months. 

You can use a dust catcher with nylon brush to clean away the dust on the heat exchanger. If 
compressed air source is available, it also can be used to clean the heat exchanger. Do not clean 
it with water. 

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 of indoor and outdoor units are blocked. 
(2)  Check whether ground connection is reliable or not. 
(3)  Check whether batteries in the remote controller are replaced or not. 
(4)  Check whether air filter is properly installed. 
(5)  If unit starts up after not operating for a long time, it should be power on 8 hours before       

peration starts so as to preheat the outdoor compressor. 

(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. 
(2)  Clean the air filter and outer case of indoor and outdoor units. 
(3)  Clean away the dust and obstacles on indoor and outdoor units. 
(4)  If outdoor unit has rust, please apply some paint to it so as to prevent the rust from    

growing. 

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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