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Owner's Manual
Original Instructions
Air Conditioners
Air Handlers
Models:
GTA18H024A
GTA18H036A
GTA18H048A
GTA18H060A

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Summary of Contents for TGM GTA18H024A

  • Page 1 Owner's Manual Original Instructions Air Conditioners Air Handlers Models: GTA18H024A GTA18H036A GTA18H048A GTA18H060A...
  • 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...
  • 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.
  • Page 4: Table Of Contents

    Contents 1 Safety Precautions ............1 2 Product Introduction ............3 2.1 Product Description ..............3 2.2 Optional Accessories..............3 2.3 Physical Dimension ..............4 2.4 Names of Main Parts ..............5 2.5 General Information ...............5 2.6 Dip switch configuration ............5 Performance Data 2.7 Fan ............6 3 Preparative for Installation..........
  • Page 5 7.2 Notice before Seasonal Use..........28 7.3 Maintenance after Seasonal Use ......... 28 7.4 Parts Replacement............... 29 8 After-Sales Service ............29 This marking indicates that this product should not be disposed with other household wastes throughout the EU. To prevent possible harm to the environment or human health from uncontrolled waste disposal, recycle it responsibly to promote the sustainable reuse of material resources.
  • Page 6: Safety Precautions

    Air Handlers 1 Safety Precautions 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.
  • Page 7 Air Handlers Electrical shock hazard: Failure to follow this warning could result in personal injury or death. Before installing, modifying, or servicing system, main electrical disconnect switch must be in the OFF position. There may be more than 1 disconnect switch. Lock out and tag switch with a suitable warning label.
  • Page 8: Product Introduction

    Air Handlers metal as required by NFPA 90B. Metal plenum of duct may be connected to the non-combustible floor base for downflow. Exposing combustible non-metal. material to the supply opening of a downflow unit can cause a fire resulting in property damage, personal injury or death.
  • Page 9: Physical Dimension

    Air Handlers 2.3 Physical Dimension Unit: inch(mm) Dimension Model GTA18H024A 21-1/4(540) 21-1/4(540) 48-1/4(1224) 11-5/8(295) 20(508) GTA18H036A GTA18H048A 24-3/4(630) 21-1/4(540) 57(1448) 11-5/8(295) 20(508) GTA18H060A...
  • Page 10: Names Of Main Parts

    Air Handlers 2.4 Names of Main Parts 2.5 General Information Model Cooling capacity(ton) Optional electric heater (kW) GTA18H024A 5/8/10 GTA18H036A 5/8/10 GTA18H048A 10/15/20 GTA18H060A 10/15/20 Motor @ 230V ~, 60Hz Model GTA18H024A GTA18H036A GTA18H048A GTA18H060A Model Filter size (mm) GTA18H024A 490×516×15...
  • Page 11: Dip Switch Configuration

    Model Level Heat (SA2) Cool (SA1) Level 1 Level 2 Level 3 Level 4-Default GTA18H024A Level 5 Level 6 Level 7 Level 8 Level 1 Level 2 Level 3 Level 4-Default...
  • Page 12: Fan Performance Data

    External static pressure should stay within the minimum and maximum limits shown in the table below in order to ensure proper operation of both cooling, heating, and electric heating operation. Model GTA18H024A Static pressure(Inches W.C.) Level 0.15 Speed 1(CFM) 1030...
  • Page 13 Air Handlers Model GTA18H036A Static pressure(Inches W.C.) Level 0.15 Speed 1(CFM) 1150 1050 Speed 2(CFM) 1200 1100 1000 Speed 3(CFM) 1380 1260 1200 1100 Speed 4(CFM) 1550 1460 1390 1310 1160 1080 1000 Speed 5(CFM) 1710 1650 1600 1560 1480 1400 1310 1210...
  • Page 14: Preparative For Installation

    Air Handlers 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 number, specifications and accessories are correct prior to installation. The distributor or manufacturer will not accept claims from dealers for transportation damage or installation of incorrectly shipped units.
  • Page 15 Air Handlers Immediate hazards which will result in property damage, product damage, severe personal injury or death. Hazards or unsafe practices could result in property damage, product damage, severe personal injury or death. Hazards or unsafe practices which may result in property damage, product damage, severe personal injury or death.
  • Page 16: Installation

    Air Handlers Protection Association” (NFPA) 70 and local/state codes. In Canada, electric grounding conforms to the Canadian electric code CSA c22.1. Failure to observe this warning can result in electrical shock that can cause personal injury. Special warning for installation of furnaces or air handling units in enclosed areas, such as garages, utility rooms or parking areas.
  • Page 17: Location

    Air Handlers If an incorrect unit is supplied, it must not be installed and it is to be returned to the supplier. The manufacturer assumes no responsibility for the installation of incorrectly delivered units. The evaporator coil contains high-pressure inert gas for holding charge. 4.2 Location This air handler is designed for indoor installation only.
  • Page 18: Piping Work

    Air Handlers 4.3 Piping Work 4.3.1 Specification of Connection Pipe External diameter (inch) Model Gas pipe Liquid pipe GTA18H024A GTA18H036A Φ3/4 Φ3/8 GTA18H048A GTA18H060A...
  • Page 19 Air Handlers 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 leakage.
  • Page 20: Condensate Removal

    Air Handlers 4.3.2.2 Screw Connection Pipe diameter (inch) Tightening torque (N·m) Φ1/4 15-30 Φ3/8 35-40 Φ1/2 45-50 Φ5/8 60-65 Φ3/4 70-75 Φ7/8 80-85 4.4 Condensate Removal It is not allowed to connect the condensate drain pipe into waste pipe or other pipelines which are likely to produce corrosive or peculiar smell to prevent the smell from entering indoors or corrupt the unit.
  • Page 21: Ductwork

    Air Handlers 4.5 Ductwork This air handler is designed for a complete supply and return ductwork system. Field ductwork must meet the National Fire Protection Association NFPA 90A, NFPA 90B and any applicable local ordinance. Sheet metal ductwork run in unconditioned spaces must be insulated and covered with a vapor barrier.
  • Page 22: Electric Heater

    Air Handlers 4.6 Electric Heater The air handlers listed in this manual do not have factory installed electric heat. Electric heat is available as an accessory. Please refer to installation instructions provided with heater kit for the correct installation procedure. Refer to the “Electric heater kits installation”...
  • Page 23 Air Handlers If this appliance is installed in an enclosed area such as a garage or utility room with any carbon monoxide producing appliance, ensure the area is properly ventilated. 1) Refer to the Table for appropriate heater kit. 2) Check any physical damage, do not install damaged heater kit. 3) Remove the upper access panel from air handler.
  • Page 24: Electrical Installation

    Air Handlers 4.7 Electrical Installation 4.7.1 Requirement and Notice on Electrical Installation The electrical installation for the air conditioner should observe the following requirements: ①. The electrical installation must be conducted by professionals in compliance with local laws and regulations and the instructions in this manual. Never extend the power cords.
  • Page 25 Maximum Model Power supply circuit overcurrent ampacity (A) protection (A) GTA18H024A GTA18H036A 208/230V-1Ph-60Hz GTA18H048A GTA18H060A ①. Fuse is located on the main board. ②. Install a circuit breaker at every power terminal near the units (indoor unit and thermostat) with at least 3mm contact gap. The units must be able to be plugged or unplugged.
  • Page 26 Air Handlers 2) Use a screwdriver to unscrew the terminal screw on the terminal board. 3) Use nippers to bend the solid wire into a ring that fits the terminal screw. 4) Form a proper ring and then put it on the terminal board. Use a screwdriver to tighten up the terminal screw.
  • Page 27 Air Handlers ①. Before working, please check whether the indoor unit and thermostat are powered on. ②. Match the terminal numbers and wire colors with the colors indicated in the indoor unit. ③. Wrong wire connection may burn the electrical components. ④.
  • Page 28 Air Handlers NOTE: Y means Compressor control signal for the outdoor unit; B which is energized under the heating mode means 4-way valve control signal; D means defrosting signal; R means 24V AC power supply; C means 24V common; G means indoor unit fan signal for the indoor unit; W1 means heater control signal.
  • Page 29: Installation Check And Trial Run

    Air Handlers ①. High and low voltage wires should be led through different rubber rings of the electric box cover. ②. Do not bundle up the thermostat wires or lay them side by side, otherwise errors will occur. ③. High and low voltage wires should be secured separately. Secure the former ones with big clamps and the latter ones with small clamps.
  • Page 30: Trial Run

    Air Handlers Problems might happen due to Items to be checked Check improper installation Check if the unit has been earthed Hazard of electricity leakage. soundly. Check if the wiring conforms to the Malfunction might happen and parts wire gage. might be burned.
  • Page 31: Common Malfunction And Elimination

    Air Handlers 6 Common Malfunction and Elimination If the unit doesn’t run normally, please check the following items before ask for service. Phenomenon Reason Treatment The unit doesn’t connect with Connect with power power supply. supply. The unit can not be Check if circuit voltage Low voltage.
  • Page 32 Air Handlers Following circumstances are not malfunction. “Malfunction” Reason When unit is started Overload protection switch immediately after it is makes it run after 3 minutes just turned off. delay. Unit doesn’t run. When power is turned Standby operating for about 1 minute.
  • Page 33: Maintenance And Care

    Air Handlers There are LED indicators on the main board of the indoor unit, which are used to display the operating status and malfunction information of the unit. LED indicator Color Function Indoor unit main board is powered on, Power Power Indicator Indicator is on.
  • Page 34 Air Handlers Clean the dust of sundries on the indoor units. In the event of rusting, use the anti-rust paint to stop spreading of rust. 7.4 Parts Replacement Purchase parts from local appointed service center or dealer if necessary. When user need to replace the mainboard, installer should put old mainboard jumper cap and the short-driven electrical resistance on the new mainboard.

This manual is also suitable for:

Gta18h036aGta18h048aGta18h060a

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