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Summary of Contents for Gree GMV-ND09A/A-T(U)
- Page 1 Owner's Manual Original Instructions Commercial Air Conditioners GMV DC Air Handler Models: GMV-ND09A/A-T(U) GMV-ND12A/A-T(U) GMV-ND18A/A-T(U) GMV-ND24A/A-T(U) GMV-ND30A/A-T(U) GMV-ND36A/A-T(U) GMV-ND42A/A-T(U) GMV-ND48A/A-T(U) GMV-ND54A/A-T(U)
- Page 2 Preface For correct installation and operation, please read all instructions carefully. Before reading the instructions, please be aware of the following items: (1) For the safe operation of this unit, please read and follow the instructions carefully. (2) During operation, total capacity of indoor units should not exceed the total capacity of outdoor units.
- Page 3 Exception Clauses Manufacturer will bear no responsibilities when personal injury or property loss is caused by the following reasons: Damage the product due to improper use or misuse of the product; Alter, change, maintain or use the product with other equipment without abiding by the instruction manual of manufacturer;...
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Page 4: Table Of Contents
Contents 1 Safety Precautions······················································································ 1 2 Product Introduction····················································································3 2.1 Names of Key Components················································································ 3 2.2 Rated Working Condition··················································································· 3 3 Preparative for Installation··········································································· 4 3.1 Pre-Installation Instruction·················································································· 4 3.2 Important Safety Instructions···············································································4 3.3 Requirements for Communication Line··································································6 3.4 Wiring Requirements·························································································7 4 Installation Instructions···············································································... -
Page 5: Safety Precautions
(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... - Page 6 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.
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Page 7: Product Introduction
GMV DC Air Handler 2 Product Introduction 2.1 Names of Key Components Fig.2.1 2.2 Rated Working Condition Indoor Side Condition Outdoor Side Condition — Dry Bulb Temp°C(°F) Wet Bulb Temp°C(°F) Dry Bulb Temp°C(°F) Wet Bulb Temp°C(°F) Rated Cooling 26.7(80.0) 19.4(67.0) 35(95.0) 23.9(75.0) Rated Heating... -
Page 8: Preparative For Installation
GMV DC Air Handler 3 Preparative for Installation 3.1 Pre-Installation Instruction 3.1.1 Checking Product Received After receiving the product, please check if there is any damage caused by transportation. Shipping damage is the responsibility of the carrier. Verify the model No., specifications and accessories are correct prior to installation. - Page 9 GMV DC Air Handler must be in the “off ” position. Caution, more than one disconnect may exist. Failure to observe this warning may result in an electrical shock that can cause personal injury or death. The United States environmental protection agency (“EPA”) has issued various regulations regarding the introduction and disposal of refrigerants introduced into this unit.
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Page 10: Requirements For Communication Line
GMV DC Air Handler ventilation directly to outside. This ventilation is necessary to avoid the danger of CO poisoning which can occur if a carbon monoxide producing device continues to operate in the enclosed area. Carbon monoxide emission can be (re)circulated throughout the building if the furnace or air handler is operating in any mode. CO can cause serious illness including permanent brain damage or death. -
Page 11: Wiring Requirements
GMV DC Air Handler 3.3.2 Select communication line for indoor unit and outdoor unit Fig.3.3.2 Total length of communication wire Wire type Wire size Wire standard Remarks between indoor unit and indoor unit(outdoor unit) 1. If the wire diameter is enlarged to 16 AWG, the total communication cable length can reach 1500m (4921-1/4ft.). -
Page 12: Installation Instructions
GMV DC Air Handler Use copper wire only as unit’s power cord. Operating temperature should be within its rated value. If the power cord is more than 15 m (49-1/4 ft.) long, please increase properly the sectional area of power cord to avoid overload, which may cause accident. - Page 13 GMV DC Air Handler A place where easy connection with the outdoor unit is available. A place where is 1m or more away from other electric appliances such as television, audio device, etc. Avoid a location where there is heat source, high humidity or inflammable gas. ...
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Page 14: Piping Work
GMV DC Air Handler 4.3 Piping Work 4.3.1 Specification of Connection Pipe External Diameter (inch) Model Gas Pipe Liquid Pipe GMV-ND09A/A-T(U) GMV-ND12A/A-T(U) GMV-ND18A/A-T(U) GMV-ND24A/A-T(U) GMV-ND30A/A-T(U) GMV-ND36A/A-T(U) GMV-ND42A/A-T(U) GMV-ND48A/A-T(U) GMV-ND54A/A-T(U) 4.3.2 Piping Preparation All cut ends are to be round, burr free, and cleaned. Failure to follow this practice increases the chances for refrigerant leakage. -
Page 15: Ductwork
GMV DC Air Handler Fig.4.4 4.5 Ductwork This air handler is designed for a complete supply and return ductwork system. Do not operate the unit without all ductwork completed. Do not operate this product without all ductwork attached. Inadequate ductwork that restricts airflow can result in improper performance and compressor or heater failure. -
Page 16: Connection Of Wire And Patch Board Terminal
GMV DC Air Handler The communication wires should be separated from power cord and connection wire between indoor unit and outdoor unit. Adjust the static pressure via wired controller according to site circumstance. If the supply cord is damaged, it must be replaced by manufacturer, its service agent or similarly qualified persons in order to avoid a hazard. -
Page 17: Power Cord Connection
GMV DC Air Handler 5.2 Power Cord Connection NOTICE! All indoor units must be unified of power supply so that they can be powered ON/OFF at the same time. Fig.5.2 For units with single-phase power supply. (1) Detach the electric box lid. (2) Let the power cord pass through the wiring through-holes. -
Page 18: Connect Communication Wire Of Wired Controller
GMV DC Air Handler downstream IDU of the communication bus (terminal D1 and D2), as shown in Fig.5.3.2, terminal resistor is provided with each ODU. 5.4 Connect Communication Wire of Wired Controller (1) Open electric box cover of indoor unit. (2) Let the communication wire go through the rubber ring. -
Page 19: Routine Maintenance
GMV DC Air Handler The type of indoor units must be the same if they are controlled by the same wired controller. When the indoor unit is controlled by two wired controllers, the addresses of the two wired controllers should be different through address setting. -
Page 20: Maintenance Before The Seasonal Use
GMV DC Air Handler every two weeks). 6.2 Maintenance before the Seasonal Use (1) Check if the air inlet and air outlet of indoor and outdoor unit are blocked. (2) Check if securely grounded. (3) Check if all the power cord and communication cable are securely connected. (4) Check if any error code displayed after energized. - Page 21 GMV DC Air Handler Phenomenon Troubleshooting Power supply is not connected. Circuit breaker tripping caused by leakage of electricity. The unit can’t start Input voltage is too low. Defect of main PC-board. The unit stops after running for a while. The inlet or outlet of ODU or IDU are blocked by obstacle.
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