Gree GMV-ND28TS/B-T Owner'S Manual Download 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 achieve expected operating effect, we hereby instruct as below: 

(1)  This appliance can be used by children aged from 8 years and above and persons with reduced 

physical, sensory or mental capabilities or lack of experience and knowledge if they have been 
given supervision or instruction concerning use of the appliance in a safe way and understand 
the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance 
shall not be made by children without supervision. 

(2)  In order to ensure reliability of product, the product may consume some power under stand-by 

status for maintaining normal communication of system and preheating refrigerant and lubricant. 
If the product is not to be used for long, cut off the power supply; please energize and preheat 
the unit in advance before reusing it.   

(3)  Please properly select the model according to actual using environment, otherwise it may impact 

the using convenience.   

(4)  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 above 
special places, please adopt special air conditioner with anti-corrosive or anti-explosion function.   

(5)  If the product needs to be installed, moved or maintained, please contact our designated dealer 

or local service center for professional support. Users should not disassemble or maintain the 
unit by themselves, otherwise it may cause relative damage, and our company will bear no 
responsibilities. 

(6)  All the illustrations and information in the instruction manual are only for reference. In order to 

make the product better, we will continuously conduct improvement and innovation. If there is 
adjustment in the product, please subject to actual product. 

 
 

 
 

 

 

Summary of Contents for GMV-ND28TS/B-T

Page 1: ...uctions Commercial Air Conditioners Multi Variable Air Conditioners Two way Cassette Type Indoor Unit Models GMV ND28TS B T GMV ND36TS B T GMV ND45TS B T GMV ND50TS B T GMV ND56TS B T GMV ND63TS B T G...

Page 2: ...used for long cut off the power supply please energize and preheat the unit in advance before reusing it 3 Please properly select the model according to actual using environment otherwise it may impac...

Page 3: ...Notice This appliance can be used by children aged from 8 years and above and persons with reduced physical sensory or mental capabilities or lack of experience and knowledge if they have been given s...

Page 4: ...ction 10 4 3 Drainage Pipe Installation and Drainage System Testing 11 4 4 Panel Installation 14 4 5 Installation of Wired Controller 16 5 Wiring Work 16 5 1 Connection of Wire and Patch Board Termina...

Page 5: ...he same refrigerant All units in Manual Cover is a partial unit complying with partial unit of IEC 60335 2 40 2018 and must only be connected to other units that have been confirmed as complying to co...

Page 6: ...damaged For units with wired controller do not connect power supply until the wired controller is well installed Otherwise the wired controller cannot be used When the installation is finished please...

Page 7: ...ing Cooling mode indoor temperature should not be set too low Keep the difference between indoor temp and outdoor temp within 5 If abnormal condition occurs e g unpleasant smell please turn off the un...

Page 8: ...y Cassette Type Indoor Unit 4 2 Product Introduction 2 1 Names of Key Components Fig 2 1 2 2 Three view drawing of product 2 2 1 Three view drawing of main body Fig 2 2 1 Unit mm Model A B C D E F GMV...

Page 9: ...p Wet Bulb Temp Rated Cooling 27 19 35 24 Rated Heating 20 15 7 6 3 Preparations for Installation NOTE this picture is for reference only please refer to the actual product the unit of dimension is mm...

Page 10: ...explosive gas or smog spread in the air 6 The appliance shall not be installed in the laundry 7 The indoor unit outdoor unit power cord and connection electricity wire should be at least 1m from tele...

Page 11: ...otal length of communication wire between indoor unit and wired controller m Wire diameter mm Wire standard Remark Light Ordinary polyvinyl chloride sheathed cord 60227 IEC 52 60227 IEC 53 L 250 2 0 7...

Page 12: ...re 3 4 Wiring Requirements Dimension of power cord and capacity of air switch Model Power Supply Air Switch Capacity A Minimum Sectional Area of Grounding Wire mm Minimum Sectional Area of Power Cord...

Page 13: ...t the M10 expansion bolt into the hole and then knock the nail into the bolt as shown in Fig 4 1 4 NOTE The length of bolt depends on the installation height of the unit bolts are field supplied Fig 4...

Page 14: ...he nut on it 7 Remove the paper pattern Fig 4 1 5 4 2 Refrigerant Pipe Connection 1 Aim the flaring port of copper pipe at the center of screwed joint and then tighten the flaring nut with hand as sho...

Page 15: ...f drainage pipe joint 6 Install drainage pipe according to the following Fig 4 3 1 and arrange insulation to the drainage pipe Improper installation may lead to water leakage and damp the furniture an...

Page 16: ...way as shown in following No 1 Three way connection of drainage pipe joints Fig 4 3 3 No 2 Connection of downspout elbow Fig 4 3 4 No 3 Inserting horizontal pipe connection Fig 4 3 5 Fig 4 3 3 Fig 4...

Page 17: ...lectric work is finished 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 1 In case of commission...

Page 18: ...ng decoration Unit mm Fig 4 3 9 4 4 Panel Installation 4 4 1 Notices for Installation 1 Improper decorative panel installation could cause the following problems Fig 4 4 1 2 Ensure that it s clearance...

Page 19: ...two side of panel and then fix the 2 screws in the middle of panel 4 Tighten the two J shape hooks in the accessories on the panel with screws please refer to Fig 4 4 6 5 Tighten the two L shape metal...

Page 20: ...of power supply must be sufficient and the sectional area of wires in the room should be above 2 5mm2 4 The unit should be powered by independent circuit and specific socket 5 The wiring should be in...

Page 21: ...1 1 1 Use a stripper to strip away about 25mm of the insulation layer at the end of single branch line so that the single core wire can be exposed 2 Remove the wiring screws on the terminal board 3 Sh...

Page 22: ...rwise the unit can t operate normally Fig 5 2 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 4 Fix the power cord with wi...

Page 23: ...1 and D2 as shown in Fig 5 3 2 5 4 Connection of Communication Wire for Wired Controller 1 Detach the electric box cover 2 Let the communication wire pass through the wiring through holes 3 Connect th...

Page 24: ...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 Fig 5 5 1 NOTES The type of indoor units must be the same if they are...

Page 25: ...nt the unit from losing color or deforming Do not dry the filters by fire or it may catch fire or become deformed Clean the filter with a wet cloth dipped in neutral detergent Please contact after sal...

Page 26: ...t PCB Error dL Indoor Unit CO2 Sensor Error L5 Freeze protection d3 Ambient Temperature Sensor Error dE Capacity DIP Switch Setting Error L6 Mode conflict d4 Inlet Pipe Temperature Sensor Error db Spe...

Page 27: ...temperature is higher than 43 Poor cooling effect The filter is dirty or blocked Too heavy heat load of room e g too many people Door or windows is open Inlet and outlet of IDU are blocked Setting te...

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