background image

Multi Variable Air Conditioners Cassette Type Indoor Unit 

1 Safety Precautions   

 

(1)  This product can’t be installed at corrosive, inflammable or explosive environment or the place with special 

requirements, such as kitchen. Otherwise, it will affect the normal operation or shorten the service life of the unit, or 
even cause fire hazard or serious injury. As for the above special places, please adopt special air conditioner with 
anti-corrosive or anti-explosion function. 

(2)  Follow this manual to complete the installation work. Please read this manual carefully before turning on or 

repairing the unit. 

(3)  Installation should be conducted by the dealer or qualified personnel. Please do not attempt to install the air 

conditioner by yourself. Improper installation may lead to water leakage, electric shock or fire hazard, etc. 

(4)  Before installation, please check whether the power supply is complied with that specified on the nameplate and 

check the safety of the power supply.   

(5)  The air conditioner must be grounded reliably for avoiding electric shock. Please do not connect the earthing wire 

to gas pipe, water pipe, lightning rod or telephone line. 

(6)  Be sure to use special accessories and parts for installation to prevent water leakage, electric shock and fire 

hazard, etc. 

(7)  If refrigerant leakage happens, please ventilate the room immediately.   
(8)  Diameter of power cord should be large enough. The damaged power cord and connection wire must be replaced 

with special cables. 

(9)  When the power cord is connected, please fix the electric box cover properly to avoid safety accidents. 
(10)  Never fail to comply with the nitrogen-charging welding process. Do charge nitrogen when welding the pipes.     
(11)  Never short circuit or cancel the pressure switch to prevent unit damage.   
(12)  As for the unit controlled by the wired controller, connect the wired controller well firstly and then energize the unit; 

otherwise, the unit can’t operate normally. 

(13)  When installation is finished, please check whether the drainage pipes, pipelines and electric wires are connected 

correctly to avoid water leakage, refrigerant leakage, electric shock or fire, etc. 

(14)  Do not insert fingers or objects into air outlet or air return grille. 
(15)  Open the door and window frequently to keep good ventilation for avoiding oxygen deficit when gas heater or oil 

heater is used in the room. 

(16)  Never plug in or unplug the power plug directly to turn on or turn off the air conditioner.   
(17)  Once the air conditioner is turned on, it can be turned off only after it has operated for 5min at least; otherwise, it will 

affect the oil return of compressor. 

(18)  Do not allow children to operate this air conditioner. 
(19)  Do not operate this air conditioner with wet hands. 
(20)  The air conditioner can be cleaned only when it has been turned off and the power has been cut off; otherwise, it 

may cause electric shock or injury. 

(21)  Never spray or flush water towards the air conditioner; otherwise, malfunction or electric shock may happen. 
(22)  Do not expose the air conditioner to the moist or corrosive environment. 
(23)  Put through the power 8 hours in advance before operation. Do not cut off the power when the air conditioner stops 

operation for only about one night (protect the compressor).   

(24)  Volatile liquid, such as diluent or gasoline, will damage the appearance of air conditioner. Only soft dry cloth and 

wet cloth dipped with neutral detergent can be used to clean the outer case of air conditioner. 

(25)  Under cooling mode, please don't set the room temperature too low; keep the temperature difference between 

indoor and outdoor within 5°C (41°F). 

(26)  If there are any abnormal circumstances (such as burning smell, etc.), please turn off the unit and cut off the main 

power supply immediately, and then contact Gree appointed service center. If those abnormal circumstances still 
exit, the unit may be damaged and it may lead to electric shock or fire hazard. 

(27)  Do not repair the unit by yourself. Wrong maintenance may cause electric shock or fire hazard. Please contact 

Gree appointed service center for help.   

Summary of Contents for GMV-ND07T/C-T

Page 1: ...onditioners Multi Variable Air Conditioners Cassette Type Indoor Unit Models GMV ND07T C T U GMV ND09T C T U GMV ND12T C T U GMV ND15T C T U GMV ND18T C T U GMV ND22T C T U GMV ND24T C T U GMV ND30T C...

Page 2: ...te normally please contact our service center as soon as possible and provide the following information 1 Content on the nameplate model number cooling capacity production code ex factory date 2 Malfu...

Page 3: ...turer 3 After verification the defect of product is directly caused by corrosive gas 4 After verification defects are due to improper operation during transportation of product 5 Operate repair mainta...

Page 4: ...Drainage System Testing 9 4 4 Panel Installation 13 4 5 Installation of Wired Controller 15 5 Wiring Work 15 5 1 Connection of Wire and Patch Board Terminal 15 5 2 Power Cord Connection 16 5 3 Connec...

Page 5: ...normally 13 When installation is finished please check whether the drainage pipes pipelines and electric wires are connected correctly to avoid water leakage refrigerant leakage electric shock or fire...

Page 6: ...ns of this manual should not be the responsibility of Gree Electric Appliances Inc of Zhuhai 2 Product Introduction 2 1 Names of Key Components Fig 2 1 1 2 2 Rated Working Condition Indoor Side Condit...

Page 7: ...Locate the drill hole on ceiling 3 Tapping screw with washer 4 Fix paper pattern 4 Washer fixing plate 4 Prevent the washer from falling off 5 Drain Hose Assembly 1 To connect with the hard PVC drain...

Page 8: ...tion electricity wire should be at least 1m from television and radio in order to prevent interference and noise Even though 1m distance is ensure there may be noise if the electric wave is too strong...

Page 9: ...ed in places with intense magnetic field or strong interference it is necessary to use shielded wire 3 3 2 Selection of Communication Wire between Indoor Unit and Indoor Unit or Outdoor Unit Fig 3 3 2...

Page 10: ...mm 1 8 inch in all poles should be connected in fixed wiring 2 The circuit breaker and power cord specification in above sheet is based on max power max current of the unit 3 The power cord specificat...

Page 11: ...orarily 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 br...

Page 12: ...hen tighten the flaring nut with hand as shown in Fig 4 2 1 2 Tighten the flaring nut with torque wrench Fig 4 2 1 Pipe diameter mm inch Torque N m 6 35 1 4 15 30 9 52 3 8 35 40 12 7 1 2 45 50 15 9 5...

Page 13: ...and damp the furniture and other things in the room 7 You can buy normal hard PVC pipe used as the drainage pipe During connection insert the end of PVC pipe into the drainage hole and then tighten it...

Page 14: ...ght of raising pipe for drainage should be lower than B The gradient from raising pipe towards drainage direction should be at least 1 2 If the raising pipe is vertical with the unit the raising heigh...

Page 15: ...water to drain pan from air vent ensure that not to splash the water over the electrical components e g water pump etc 1 In case of commissioning finished please energize the IDUs and switch to coolin...

Page 16: ...er cable and communication line need to be fixed through the side panel locking connector The fixing process is as follows 1 Attach the locking joint to the locking joint bracket Fig 4 4 1 2 Power cab...

Page 17: ...ree between decoration panel and ceiling board after installation if not please adjust the body position Fig 4 5 2 3 Connect the decoration panel terminals Female to body terminals Male as shown in Fi...

Page 18: ...he air inlet grille from panel make a wiring connection of signal receiver Notices that the connection wire not stuck in the middle of body and panel or may cause air leakage and lead to condensation...

Page 19: ...ircuit according to related regulations and electrical standards 6 Keep cable away from refrigerant pipings compressor and fan motor 7 The communication wires should be separated from power cord and c...

Page 20: ...t operate normally Fig 5 2 1 1 Detach the electric box lid 2 Let the power cord pass through the wiring through holes 3 Connect wires according to Fig 5 2 1 4 Fix the power cord with wiring clamp 5 T...

Page 21: ...en electric box cover of indoor unit 2 Let the communication wire go through the rubber ring 3 Connect the communication wire to terminal H1 and H2 of indoor 4 bit wiring board 4 Fix the communication...

Page 22: ...st be set as master one and slave one 4 One wired controller can control 16 indoor units in maximum at the same time as shown in Fig 5 5 1 1 The type of indoor units must be the same if they are contr...

Page 23: ...eck if any error code displayed after energized 6 3 Maintenance after the Seasonal Use 1 Set the unit in fan mode for half a day in a sunny day to dry the inner part of unit 2 When the unit won t be u...

Page 24: ...may save your time and money Phenomenon Troubleshooting The unit can t start Power supply is not connected Circuit breaker tripping caused by leakage of electricity Input voltage is too low Defect of...

Page 25: ......

Reviews: