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Multi Variable Air Conditioners Cassette Type Indoor Unit 

4.1.2 Suspend the Indoor Unit 

(1) Drill bolt holes and install bolts. 

1)  Stick the reference cardboard on the installation position; drill 4 holes according to the 

hole site on the cardboard as shown in Fig.4.1.2; Diameter of drilling hole is according to 
the diameter of expansion bolt and the depth is 60-70mm (2-3/8~2-3/4 inch), as shown in 
Fig.4.1.3. 

Unit: mm (inch) 

 

Fig.4.1.2                                 Fig.4.1.3 

2)  Insert the M10 expansion bolt into the hole and then knock the nail into the bolt, as shown 

in Fig.4.1.4. 

  The length of bolt depends on the installation height of the unit, bolts are field supplied. 

 

Fig.4.1.4 

(2) 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. The washer fixing plate will prevent the washer from falling. 

(3) The usage of paper pattern. 
Refer to paper pattern of installation for ceiling opening dimension. The center of ceiling opening 

is indicated on the paper pattern. Fix the paper pattern to the unit with 4 screws and fix the corners of 
the waterspout at the drainage pipe by screws. 

(4) Adjust the unit to the right position. 
(5) Check the level of the unit. 
The indoor unit is equipped with build-in water pump and float switch, verify the levelness of 4 

directions by level gauge or vinyl tube (filled with water) respectively. 

(6) Remove the washer locating plate and then tighten the nut on it. 
(7) Remove the paper pattern. 

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...

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