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Multi Variable Air Conditioners Ducted Type Indoor Unit 

1 Safety Precautions 

 

WARNING

 

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

(2) Follow this instruction to complete the installation work. Please carefully read this manual before unit startup 
and service. 

(3) Wire size of power cord should be large enough. The damaged power cord and connection wire should be 
replaced by exclusive cable.   

(4) After connecting the power cord, please fix the electric box cover properly in order to avoid accident.   

(5) Never fail to comply with the nitrogen charge requirements. Charge nitrogen when welding pipes.   

(6) Never short-circuit or cancel the pressure switch to prevent unit damage.   

(7) Please firstly connect the wired controller before energization, otherwise wired controller cannot be used.   

(8) Before using the unit, please check if the piping and wiring are correct to avoid water leakage, refrigerant 
leakage, electric shock, or fire etc.   

(9) Do not insert fingers or objects into air outlet/inlet grille.   

(10) Open the door and window and keep good ventilation in the room to avoid oxygen deficit when the gas/oil 
supplied heating equipment is used.   

(11) Never start up or shut off the air conditioner by means of directly plug or unplug the power cord.   

(12) Turn off the unit after it runs at least five minutes; otherwise it will influence oil return of the compressor.   

(13) Do not allow children operate this unit.   

(14) Do not operate this unit with wet hands.   

(15) Turn off the unit or cut off the power supply before cleaning the unit, otherwise electric shock or injury may 
happen.   

(16) Never spray or flush water towards unit, otherwise malfunction or electric shock may happen.   

(17) Do not expose the unit to the moist or corrosive circumstances.   

(18) Under cooling mode, please don't set the room temperature too low and keep the temperature difference 

between indoor and outdoor unit within 5

(41

).   

(19)  User  is  not  allowed  to  repair  the  unit.  Fault  service  may  cause  electric  shock  or  fire  accidents.  Please 
contact Gree appointed service center for help.   

(20) Before installation, please check if the power supply is in accordance with the requirements specified on 
the nameplate. And also take care of the power safety.   

(21) Installation should be conducted by dealer or qualified personnel. Please do not attempt to install the unit 
by yourself. Improper handling may result in water leakage, electric shock or fire disaster etc.   

(22)  Be  sure  to  use  the  exclusive  accessory  and  part  to  prevent  the  water  leakage,  electric  shock  and  fire 
accidents.   

(23)  Make  sure  the  unit  can  be  earthed  properly  and  soundly  after  plugging  into  the  socket  so  as  to  avoid 
electric shock. Please do not connect the ground wire to gas pipe, water pipe, lightning rod or telephone line.   

(24) Electrify the unit 8 hours before operation. Please switch on for 8 hours before operation. Do not cut off 
the power when 24 hours short-time halting (to protect the compressor).   

(25) If refrigerant leakage happens during installation, please ventilate immediately. Poisonous gas will emerge 
if the refrigerant gas meets fire.   

(26)  Volatile  liquid,  such  as  diluent  or  gas  will  damage  the  unit  appearance.  Only  use  soft  cloth  with  a  little 
neutral detergent to clean the outer casing of unit.   

(27) If anything abnormal happens (such as burning smell), please power off the unit and cut off the main power 
supply, and then immediately contact Gree appointed service center. If abnormality keeps going, the unit might 
be damaged and lead to electric shock or fire.   

Any  personal  injury  or  property  loss  caused  by  improper  installation,  improper  debug, 

unnecessary repair or not following the instructions of this manual should not be the responsibility 

of Gree Electric Appliances, Inc. of Zhuhai.

 

Summary of Contents for GMV-ND18PHS/A-T

Page 1: ...ginal Instructions Commercial Air Conditioners Multi Variable Air Conditioners Ducted Type Indoor Unit Models GMV ND18PHS A T U GMV ND24PHS A T U GMV ND30PHS A T U GMV ND36PHS A T U GMV ND42PHS A T U...

Page 2: ...irect operators or maintainers should well keep this manual 6 If this unit fails to operate normally please contact our service center as soon as possible and provide the following information 1 Conte...

Page 3: ...ion of Air Duct 12 4 5 Installation of Wired Controller 15 4 6 External Static Pressure Settings 15 5 Wiring Work 16 5 1 Connection of Wire and Patch Board Terminal 16 5 2 Power Cord Connection 17 5 3...

Page 4: ...sh water towards unit otherwise malfunction or electric shock may happen 17 Do not expose the unit to the moist or corrosive circumstances 18 Under cooling mode please don t set the room temperature t...

Page 5: ...nents No Name Filter Air Inlet Air Outlet Fittings Drain Pipe 2 2 Rated Working Condition Indoor Side Condition Outdoor Side Condition Dry Bulb Temp C Wet Bulb Temp C Dry Bulb Temp C Wet Bulb Temp C R...

Page 6: ...e 3 Special Nut 1 To be used for connecting the refrigerant pipe 4 M10X8 Nut with Washer 4 To be used together with the hanger bolt for installing the unit 5 M10 Nut M10X8 4 Nut 4 To be used together...

Page 7: ...gas or smoke 7 This is a concealed ceiling type unit 8 Indoor unit outdoor unit power cord and electric wire should stay at least 1m 39 3 8 in from the TV set and radio Otherwise these electrical appl...

Page 8: ...50m 820 1 5ft 2 The cord shall be Circular cord the cores shall be twisted together 3 If unit is installed in places with intense magnetic field or strong interference it is necessary to use shielded...

Page 9: ...than 15 m 49 1 4 ft long please increase properly the sectional area of power cord to avoid overload which may cause accident 3 Above selection requirements Power cord size is based on BV single core...

Page 10: ...Model A B C D E F G H I J GMV ND18PHS A T U 1101 43 3 8 517 20 3 8 820 32 1 4 1159 45 5 8 1271 50 558 22 1002 39 1 2 160 6 1 4 235 9 1 4 268 10 1 2 GMV ND24PHS A T U GMV ND30PHS A T U 1101 43 3 8 748...

Page 11: ...The washer fixing plate will prevent the washer from falling NOTES Before operation please prepare all pipelines connection pipe drainage hose and wires connection wire for wired controller connectio...

Page 12: ...3 Use pipe bend when bending the pipe and the bending angle should not be too small 4 Wrap the connection pipe and joint with sponge and then tie them firmly with tape 4 3 Installation of Indoor Unit...

Page 13: ...lower than the drainage port of each unit In this case thicker pipes should be applied Fig 4 3 1 4 3 2 Drainage Pipe Installation 1 Insert the drain hose into the drain hole and tighten it with tapes...

Page 14: ...7 NO3 Inserting pipe connection Fig4 3 8 Fig 4 3 6 Fig 4 3 7 Fig 4 3 8 7 The installation height of raising pipe for drainage should be lower than B The gradient from raising pipe towards drainage dir...

Page 15: ...er pump drains normally through drainage port The water pump will stop automatically after running for 10mins 2 During the test please carefully check the drainage joint make sure no any leakage occur...

Page 16: ...ot have the air return opening installed on top of the user Offices rest area etc 4 4 1 Installation of Air out Duct 1 Installation of the Rectangular Duct Fig 4 4 1 No Name No Name 1 Hanger Rod 5 Sta...

Page 17: ...3 7 8 206 8 1 8 4 4 3 Installation of the Return Air Duct 1 The default installation location of the rectangular flange is at the back and the return air cover plate is at the bottom as shown in Fig 4...

Page 18: ...ish setting 3 Press ENTER CANCEL button to return to last step until exists setting parameters The parameter setting list is as following Parameter code Parameter name Parameter range Default value No...

Page 19: ...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 circuit according to related regulation...

Page 20: ...d outdoor units belonging to the same system must be kept energized status Otherwise the unit can t operate normally Fig 5 2 For units with single phase power supply 1 Detach the electric box lid 2 Le...

Page 21: ...oor 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 wire with wire clip on the...

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 fig5 5 1 The type of indoor units must be the same if they are controll...

Page 23: ...Multi Variable Air Conditioners Ducted Type Indoor Unit 20 Fig 5 5...

Page 24: ...e a vacuum cleaner to remove dust If the filters are dirty wash them with warm water and mild detergent and dry the filters in the shade 2 If the unit used in the environment with much dust please cle...

Page 25: ...pair may cause electric shock or fire so please contact an authorized service center for professional service The following checks prior to contact may save your time and money Phenomenon Troubleshoot...

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