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ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES.
Important: This Document is customer property and is to remain with unit. Please return to service information pack
upon completion of work.
Important: These instructions do not cover all variations
in systems nor provide for every possible contingency to
be met in connection with the installation. Should further
information be desired or should particular problems
arise which are not covered sufficiently for the pur-
chaser's purposes, the matter should be referred to your
installing dealer or local distributor.
Note: The manufacturer recommends installing ONLY
approved, matched indoor and outdoor systems. Some
of the benefits of installing approved matched indoor and
outdoor split systems are maximum efficiency, optimum
performance, and the best overall system reliability.
Note: All ratings use a 90-second fan off delay. Use
your branded thermostat or separate relay to enable this
delay.
Note: Condensation may occur on the surface of the air
handler when installed in an unconditioned space. When
units are installed in unconditioned spaces, verify that
all electrical and refrigerant line penetrations on the air
handler are sealed completely.
Important: The GAM2A0C60S5ASC air handler applied
in the horizontal configuration should not exceed 2000
CFM. Airflow above 2000 CFM could result in water
blow-off. For verification, see airflow table.
Installer's Guide
50 HZ Convertible Air
Handlers 3 – 5 Ton
Black Epoxy Coil
GAF2A0A36S3AEC
GAM2A0C48S4ASC
GAM2A0C60S5ASC
Note: Representative illustrations only included in
this document. Most illustrations display the GAM2
upflow configuration.
18-GJ47D1-5
Standard Coil
GAF2A0A36S3ASC
GAM2A0C48S4ASC
GAM2A0C60S5ASC
GAF2A0A36S3AEC
GAF2A0A36S3ASC
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Table of Contents
Related Manuals for Trane GAF2A0A36S3AEC
Summary of Contents for Trane GAF2A0A36S3AEC
- Page 1 Installer’s Guide 50 HZ Convertible Air Handlers 3 – 5 Ton Black Epoxy Coil Standard Coil GAF2A0A36S3AEC GAF2A0A36S3ASC GAM2A0C48S4ASC GAM2A0C60S5ASC ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES. Important: This Document is customer property and is to remain with unit. Please return to service information pack upon completion of work.
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Page 2: Table Of Contents
Table of Contents Section 1. Safety Information ................3 Section 2. Unit Design ..................4 Section 3. Unit Preparation ................6 Section 4. Optional Cabinet Disassembly ..........7 Section 5. Place Unit at Location ..............11 Section 6. -
Page 3: Section 1. Safety Information
Section 1. Safety Information WARNING CAUTION SAFETY HAZARD! CORROSION HAZARD! This information is intended for use To prevent shortening its service by individuals possessing adequate backgrounds of electrical and life, the air handler should not be used during the finishing phases mechanical experience. -
Page 4: Section 2. Unit Design
Section 2. Unit Design 2.1 Cabinet Penetration Important: Due to the unique design of this unit, which allows the electrical wiring to be routed within the insu- GAM2 lation, do not screw, cut, or otherwise puncture the unit cabinet in any location other than the ones illustrated. Note: Remove the cardboard from the bottom of the blower. - Page 5 The Coil, Line Set, and Heater panels are secured in place with Phillips head screws. Use screwdriver to remove. #3 Size Phillips Coil and Heater panels must be removed prior to re- moving the Line Set panel. To remove Coil Panel: 1.
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Page 6: Section 3. Unit Preparation
2.3 GAF2 Panel Removal GAF2 contains four panels: Blower, Coil, Line Set and Heater. All panels are secured in place with Phillipshead screws. Use screwdriver to remove. 3) Heater Panels must be removed in the following order: 4) Line Set 1) Coil 1) Coil 2) Blower... -
Page 7: Section 4. Optional Cabinet Disassembly
Section 4. Optional Cabinet Disassembly 4.1 Disassemble cabinet for installation in tight areas or as needed. Note: If the unit must be transported in a horizontal position, it must be laid on its back (marked “REAR” on carton). Note: To reassemble cabinet, follow the steps in reverse order. - Page 8 STEP 4 - Slide Blower assembly out of unit using built-in blower support channels and set aside. Note: Remove the cardboard from the bottom of the blower. Cut the tie wrap and remove the foam block located at the motor. Blower Support Channel STEP 5 - Remove airflow diverter, if present, from...
- Page 9 NOTE: FOR GAF2 MODELS, SKIP TO STEP 8. STEP 7 - Use a 5/16 Allen wrench on the locking mechanism on each side of the bottom half of the cabinet to loosen the locking mechanism. The locks loosen by turning counter-clockwise approximately 3/4 of a turn.
- Page 10 STEP 9 - For extremely tight spaces where the cabinet needs to be rotated through a small opening, remove the top panel. Use a manual driver to avoid stripping screw holes. STEP 10 - Continue preparation by following the proper carrying procedures shown in Section 5.
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Page 11: Section 5. Place Unit At Location
Section 5. Place Unit at Location 5.1 Carry Unit STEP 1 - Carry the unit to the installation location. STEP 2 - Reassemble by reversing the steps listed in Section 4 if disassembly was required. Important: Under no conditions should metal strap- ping be attached to the unit to be used as support mechanisms for carrying or suspension purposes. -
Page 12: Section 6. Unit Location Considerations
H x W x D **Blower Unit Number Compartment Net Weight lbs. GAF2A0A36S3AEC 39 x 17.5 x 22 GAF2A0A36S3ASC GAM2A0C48S4ASC 56.9 x 23.5 x 21.8 GAM2A0C60S5ASC 61.7 x 23.5 x 21.8 ** Subtract from total height to get Coil and Heater compartment height. - Page 13 6.2 GAM2 Four-Way Conversion To place the unit in the configuration your application requires (upflow, horizontal right, or horizontal left), simply turn the unit to that orientation. Note: The air handlers are shipped from the factory suitable for three-way application. Note: Entry for low voltage connections is allowed on either side of cabinet.
- Page 14 Airflow Horizontal Left Refrigerant Low Voltage Condensate Connections Connections Drains inside unit Horizontal Left Configuration Low Voltage Connections Refrigerant inside unit Connections Airflow Horizontal Right Condensate Drains Horizontal Right Configuration...
- Page 15 6.3 GAF2 Three-Way Conversion To place the unit in the configuration your application requires (upflow, horizontal right, or horizontal left), simply turn the unit to that orientation. Note: The air handlers are shipped from the factory suitable for three-way application. Note: Entry for low voltage connections is allowed on either side of cabinet.
- Page 16 Airflow Low Voltage Horizontal Left Refrigerant Condensate Connections Connections inside unit Drains Horizontal Left Configuration Low Voltage Connections Refrigerant inside unit Connections Airflow Horizontal Right Condensate Drains Horizontal Right Configuration...
- Page 17 6.4 Non Ducted Applications CAUTION Supply Duct HAZARDOUS VAPORS! Do not install an air handler with a non-ducted return in the same closet, alcove, or utility room as a fossil fuel device. Hazardous vapors can be distributed throughout the conditioned space and equipment damage can result.
- Page 18 6.6 Additional Unit Preparation Considerations • These units are not approved for outdoor installation. For proper installation the following items must be con- sidered prior to moving the unit to its installation site: • These units must be installed in the proper air flow direction.
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Page 19: Section 7. Setting The Unit - Vertical Installation
Section 7. Setting the Unit - Vertical Installation 7.1 Secure Coil (GAM2 Vertical Upflow Applications) STEP 1 - Remove Coil Panel. STEP 2 - Remove screw from documentation packet. STEP 3 - While the air handler is in the upflow posi- tion, use the supplied screw to secure the coil seal plate to cross member as shown. - Page 20 Plenum Installation 1. Assemble the plenum using the plenum’s Installer Guide. On units with sheet metal returns: Return plenum must be flanged. Sheet metal drill point screws must be 1/2” in length or shorter. Airflow Typical Plenum Installation...
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Page 21: Section 8. Setting The Unit - Horizontal Installation
Section 8. Setting the Unit - Horizontal Installation 8.1 Secure Coil (GAM2 Horizontal Applications) STEP 1 - Remove Coil Panel. STEP 2 - Remove screw from documentation packet. STEP 3 - While the air handler is in the upflow posi- tion, use the supplied screw to secure the coil seal plate to cross member as shown. -
Page 22: Section 9. Connecting The Duct Work
Section 9. Connecting the Duct work 9.1 Duct Connection Considerations Important: Due to the unique design of this unit, which allows the electrical wiring to be routed within the insulation, do not screw, cut, or otherwise punc- ture the unit cabinet in any location other than the ones illustrated in this Installer Guide or in an ap- proved accessory’s Installer Guide. -
Page 23: Section 10. Refrigerant Line
Vapor Line Liquid Line Model Connection Connection GAF2A0A36S3AEC, GAF2A0A36S3ASC GAM2A0C48S4ASC GAM2A0C60S5ASC Notes: 1. This table indicates the tubing connection diameters at the indoor coil. A field supplied reducing coupling may be required. 2. All listed systems are tested with 25 feet of refrigeration tubing; the rated tubing diameters are located in the electronic performance data system. -
Page 24: Section 11. Refrigerant Line Brazing
Section 11. Refrigerant Line Brazing 11.1 Braze The Refrigerant Lines STEP 1 - Remove Heater, Coil, and Line Set panels. Heater (See Section 2.2 / 2.3 Panel Removal) Panel Line Set Heater Panel Panel Line Set Panel Coil Panel Coil Panel NOTE: ILLUSTRATIONS MAY DIFFER SLIGHTLY BY AIR HANDLER MODEL. - Page 25 STEP 5 - Braze refrigerant line connections. Note: The suction line must be insulated prior to brazing the line set to the air handler stubs. 1. Pull back the insulation before brazing the suc- tion line. 2. Wrap the TXV sensing bulb with a wet rag. 3.
- Page 26 Important: Do not open the service valves until the refrigerant lines and indoor coil leak check and evacu- ation are complete. 0350 Microns STEP 8 - Evacuate until the micron gauge reads no higher than 350 microns, then close off the valve to the vacuum pump.
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Page 27: Section 12. Condensate Drain Piping
Section 12. Condensate Drain Piping 12.1 Condensate Drain Piping Considerations • Condensate drain plumbing must comply with na- • Do not use reducing fittings in the condensate drain lines. tional, state, and local codes. • Route condensate drain lines away from air handler •... - Page 28 STEP 4 - Install a clean-out tee in the primary drain line for future maintenance. It is recom- mended that you install a cap on the top of the tee. 1.5” minimum 1.5” min. clearance is recommended from cabinet to inside edge of tubing STEP 5 - Insulate the primary drain line to...
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Page 29: Section 13. Electrical - Low Voltage
Section 13. Electrical - Low Voltage 13.1 Low Voltage Maximum Wire Length Table 13.1 Table 13.1 defines the maximum total length of low voltage wiring from the outdoor unit, to the indoor 24 VOLTS unit, and to the thermostat. WIRE SIZE MAX. - Page 30 STEP 3 - Make connections per hookup diagrams. Air Handler Hook-up Diagram 1 Stage Cooling W2 Pink W3 Brown W1 White Air Handler Air Conditioner Comfort Control White White Blue Yellow Green Green Yellow Yellow Orange Blue Blue B - Blue Y - Yellow Field wiring •...
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Page 31: Section 14. Electrical - High Voltage
Section 14. Electrical - High Voltage 14.1 High Voltage Power Supply The high voltage power supply must match the WARNING equipment nameplate. LIVE ELECTRICAL COMPONENTS! Power wiring, including ground wiring, must comply During installation, testing, servicing, and troubleshooting of this with national, state, and local codes. - Page 32 STEP 3 - Route conduit (if used) to the entry point and connect. Use one hand to secure the conduit nut from inside of the heater compartment. Connect field supplied conduit to conduit nut. GAM2 models will use up to 1-1/2” conduit and GAF2 mod- els will use up to 3/4”...
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Page 33: Section 15. Filters
STEP 6 - Reinstall all panels before starting the air handler. NOTE: After replacing all panels, loosen the Line Set Panel screws approximately 1/4 - 1/2 turn. This will improve the seal between the Heater Panel and Line Set Panel. Section 15. -
Page 34: Section 16. Unit Outline Drawings
Section 16. Unit Outline Drawings 16.1 GAM2 Outline Drawings GAM2 MODEL NO. FLOW GAS LINE CONTROL BRAZE GAM2A0C48 56.9 46.7 20.5 23.5 20.5 10.3 24.2 GAM2A0C60 61.7 51.5 20.5 23.5 20.5 10.3 27.0... - Page 35 16.2 GAF2 Outline Drawings GAF2...
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Page 36: Section 17. Start Up
Section 17. Start Up 17.1 System Start Up STEP 1 - Make sure all panels are securely in place and that all wiring has been properly dressed and secured. STEP 2 - Set the system thermostat to OFF. DONE CANCEL STEP 3 - Turn on electrical power disconnect(s) to apply power to the indoor and outdoor units. -
Page 37: Section 18. Sequence Of Operation
Section 18. Sequence of Operation 18.1 Sequence of Operation GAM2/GAF2 Sequence of Operation Heatpump OD (heating) NOTE: Models with a constant torque motor (5 1. R-Y contacts close on the comfort control ton / GAM2A0C60S5ASC) do not use blower relay sending 24VAC to the OD unit. -
Page 38: Section 19. Checkout Procedures
Section 19. Checkout Procedures 19.1 Operational And Checkout Procedures Final phases of this installation are the unit Operational and Checkout Procedures. To obtain proper performance, all units must be operated and charge adjustments made in accordance with procedures found in the Service Facts of the Outdoor Unit. - Page 40 The manufacturer has a policy of continuous product and product data improvement and it reserves the right to change design and specifications without notice. 6200 Troup Highway Tyler, TX 75707 © Trane U.S. Inc. 2015 www.trane.com...