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Preface 

For correct installation and operation, please read all instructions carefully. Before reading the 

instructions, please be aware of the following items: 

  If not abide them strictly, it may cause severe damage to the unit or the 

people. 

  If not abide them strictly, it may cause slight or medium damage to the unit 

or the people. 

  This sign indicates that the items must be prohibited. Improper operation 

may cause severe damage or death to people. 

 

This sign indicates that the items must be observed. Improper operation 

may cause damage to people or property. 

 

 

(1)  The design standard of multi VRF system conforms to related standard of sales countries.   
(2)  To ensure safety when operating this system, please strictly follow the instructions in this manual. 
(3)  The total capacity of running indoor units must not exceed that of the outdoor units. Otherwise, the cooling 

(heating) effect of each IDU would be poor. 

(4)  Make sure that this manual is kept by direct operators and maintainers. 
(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. 

(7)  Under the standby status, the unit will consume a little power for ensuring reliability of the complete unit, 

maintaining normal communication and preheating refrigerant. When the unit won’t be used for a long time, 

please cut off the power of the complete unit. However, please preheat it when operating the unit next time. 

 

User Notice 

  This appliance is not intended for use by persons (including children) with reduced physical, 

sensory or mental capabilities, or lack of experience and knowledge, unless they have been 
given supervision or instruction concerning use of the appliance by a person responsible for 
their safety. Children should be supervised to ensure that they do not play with the appliance. 

  DISPOSAL: Do not dispose this product as unsorted municipal waste. Collection of such waste 

separately for special treatment is necessary. 

  

 

 

 
 
 

Summary of Contents for GMV-ND09A/B-T

Page 1: ...nstructions Commercial Air Conditioners GMV DC Air Handler Models GMV ND09A B T U GMV ND12A B T U GMV ND18A B T U GMV ND24A B T U GMV ND30A B T U GMV ND36A B T U GMV ND42A B T U GMV ND48A B T U GMV ND...

Page 2: ...rvice 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 ill...

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: ...red Controller 10 4 6 Ductwork 10 4 7 Electric Heater 11 5 Wiring Work 13 5 1 Connection of Wire and Patch Board Terminal 13 5 2 Power Cord Connection 14 5 3 Connection of Communication Wire between I...

Page 5: ...kage 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 avoidin...

Page 6: ...tion Outdoor Side Condition Dry Bulb Temp Wet Bulb Temp Dry Bulb Temp Wet Bulb Temp Rated Cooling 26 7 80 0 19 4 67 0 35 95 0 23 9 75 0 Rated Heating 21 1 70 0 15 6 60 0 8 3 47 0 6 1 43 0 3 Preparatio...

Page 7: ...responsibilities for equipment installed in violation of any codes or regulations 3 1 4 Replacement Parts When reporting shortages or damages or ordering repair parts give the complete product No and...

Page 8: ...ctric fault occurs The electric grounding circuit may consist of an appropriate sized power cord which connected with the grounding piece located in the unit control box and also connecting to the bui...

Page 9: ...r unit and wired controller Twisted pair line with shielding function must be applied on the communication wire between indoor unit and indoor unit outdoor unit 3 3 1 Select communication line for ind...

Page 10: ...15 GMV ND24A B T U 4 0 15 GMV ND30A B T U 4 0 15 GMV ND36A B T U 5 0 15 GMV ND42A B T U 5 0 15 GMV ND48A B T U 8 7 15 GMV ND54A B T U 8 7 15 GMV ND60A B T U 8 7 15 1 Use copper wire only as unit s po...

Page 11: ...7 295 11 5 8 508 20 GMV ND60A B T U 630 24 3 4 540 21 1 4 1448 57 295 11 5 8 508 20 4 2 Location 4 2 1 Unit Inspection Upon delivery inspect the unit for damage Any damage must be reported immediately...

Page 12: ...nce When installing in an area directly over a finished ceiling such as an attic an emergency drain pan is required directly under the unit See local and state codes for requirements When installing t...

Page 13: ...8 GMV ND60A B T U 3 4 3 8 4 3 2 Piping Preparation 4 3 2 1 Solder Connection All cut ends are to be round burr free and cleaned Failure to follow this practice increases the chances for refrigerant l...

Page 14: ...ng HVAC codes The installation must include a P style trap that is located closely to the evaporator coil Do not over tighten the drain connection in order to prevent possible damage to the evaporator...

Page 15: ...r than those recommended E HEAT mode setting method under off status press ON OFF and Menu button for 5s to turn on or turn off E heat mode After that the wired remote control pop up box shows Setting...

Page 16: ...r kit 2 Check any physical damage do not install damaged heater kit 3 Remove the upper access panel from air handler 4 Remove cover plate from air handler 5 Slide the heater kit in to the slot and sec...

Page 17: ...lations and electrical standards 6 Keep cable away from refrigerant piping compressor and fan motor 7 The communication wires should be separated from power cord and connection wire between indoor uni...

Page 18: ...to the ring tongue terminal and tighten by crimping tool 4 Use the screwdriver for tightening the terminal Unit mm inch Fig 5 1 1 Fig 5 1 2 5 2 Power Cord Connection All indoor units must be unified o...

Page 19: ...box 5 For more reliable communication make sure connect the terminal resistor to the most downstream IDU of the communication bus terminal D1 and D2 as shown in Fig 5 3 2 terminal resistor is provide...

Page 20: ...ted to D1 D2 2 Wired controller is connected to H1 H2 3 One indoor unit can connect two wired controllers that must be set as master one and slave one 4 One wired controller can control 16 indoor unit...

Page 21: ...efaulted static pressure notch for all models at ex factory is 5 7 Routine Maintenance 1 Do turn off the unit and cut off the main power supply when cleaning the air conditioner to avoid electric shoc...

Page 22: ...compatibility Error dH Wired Controller PCB Error L3 Water Full Protection d1 Indoor Unit PCB Error dC Capacity DIP Switch Setting Error L4 Wired Controller Power Supply Error d3 Ambient Temperature S...

Page 23: ...heavy heat load of room e g too many people Door or windows is open Inlet and outlet of IDU are blocked Setting temperature is too high Refrigerant is insufficient e g refrigerant leakage Poor heatin...

Page 24: ......

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