Trane TAM4A0A18S11ED Installer's Manual
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Trane TAM4A0A18S11ED Installer's Manual

Convertible air handlers
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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 this 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
AHRI approved, matched indoor and outdoor systems.
Some of the benefits of installing approved matched
indoor and outdoor split systems are maximum efficien-
cy, optimum performance, and the best overall system
reliability.
Note: All AHRI 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: TAM4A0C60S51 air handler applied in
downflow or horizontal configurations should not exceed
2000 CFM. Airflow above 2000 CFM could result in
water blow-off. For verification, see airflow table.
Important: The TAM4 air handlers will only use the fol-
lowing internal electric heaters:
BAYEAAC04BK1, BAYEAAC04LG1
BAYEAAC05BK1, BAYEAAC05LG1
BAYEAAC08BK1, BAYEAAC08LG1
BAYEAAC10BK1, BAYEAAC10LG1
BAYEAAC10LG3, BAYEABC15BK1
BAYEABC15LG3, BAYEABC20BK1
BAYEACC25BK1
Installer's Guide
Convertible Air Handlers
1-1/2 – 5 Ton
Black Epoxy Coil
TAM4A0A18S11ED
TAM4A0A24S21ED
TAM4A0A30S21ED
TAM4A0A36S31ED
TAM4A0B42S31ED
TAM4A0C48S41ED
TAM4A0C60S51ED
Note: Representative illustrations only included
in this document. Most illustrations display the
upflow configuration.
18-GJ05D1-12A-EN
Standard Coil
TAM4A0A18S11SD
TAM4A0A24S21SD
TAM4A0A30S21SD
TAM4A0A36S31SD
TAM4A0B42S31SD
TAM4A0C48S41SD
TAM4A0C60S51SD

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Summary of Contents for Trane TAM4A0A18S11ED

  • Page 1 18-GJ05D1-12A-EN Installer’s Guide Convertible Air Handlers 1-1/2 – 5 Ton Black Epoxy Coil Standard Coil TAM4A0A18S11ED TAM4A0A18S11SD TAM4A0A24S21ED TAM4A0A24S21SD TAM4A0A30S21ED TAM4A0A30S21SD TAM4A0A36S31ED TAM4A0A36S31SD TAM4A0B42S31ED TAM4A0B42S31SD TAM4A0C48S41ED TAM4A0C48S41SD TAM4A0C60S51ED TAM4A0C60S51SD ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES Important: This Document is customer property and is to remain with this unit.

  • Page 2: Table Of Contents

    Table of Contents Section 1. Safety Information ......................2 Section 2. Unit Design........................3 Section 3. Unit Preparation....................... 5 Section 4. Optional Cabinet Disassembly..................6 Section 5. Place Unit at Location..................... 11 Section 6. Unit Location Considerations..................12 Section 7. Setting the Unit - Vertical Installation................17 Section 8.

  • Page 3: 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 insulation, do not screw, cut, or otherwise punc- ture the unit cabinet in any location other than the ones illustrated.
  • Page 4 The Coil, Line Set, and Heater panels are removed using Phillips head screws. #3 Size Phillips Coil and Heater panels must be removed prior to re- moving the Line Set panel. To remove Coil Panel: 1. Turn screws on Coil panel. 2.

  • Page 5: Section 3. Unit Preparation

    Section 3. Unit Preparation 3.1 Prepare The Unit For Installation STEP 1 - Check for damage and report promptly to the carrier any damage found to the unit. Note: If the unit must be transported in a horizontal position, it must be laid on its back (marked “REAR” on carton).

  • Page 6: 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 7 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...
  • Page 8 STEP 5 - Disconnect wires to the EEV motor and sensors inside the coil assembly. Cut the wire ties on those wire harnesses. Note: If cut, wire ties that held the sensor must be replaced after the coil is placed back into the cabinet.
  • Page 9 STEP 8 - Lift the Coil section up and away from the Blower section. Set aside. Note: When separating the two cabinet pieces, make sure the gasket remains intact.
  • 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.

  • 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

    6.1 Unit Dimensions and Weight Table 7.1 Model H x W x D **Blower Unit Number Compartment Net Weight lbs. TAM4A0A18S11ED 49.9 x 17.5 x 21.8 TAM4A0A18S11SD TAM4A0A24S21ED 49.9 x 17.5 x 21.8 TAM4A0A24S21SD TAM4A0A30S21ED 49.9 x 17.5 x 21.8 TAM4A0A30S21SD TAM4A0A36S31ED 49.9 x 17.5 x 21.8...
  • Page 13 6.2 Four-Way Conversion To place the unit in the configuration your application requires (upflow, downflow, horizontal right, or horizontal left), simply turn the unit to that orientation. Note: The air handlers are shipped from the factory suitable for four-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 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. Hazard- ous vapors can be distributed throughout the condi- tioned space and equipment damage can result.
  • Page 16 6.5 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.

  • Page 17: Section 7. Setting The Unit - Vertical Installation

    Section 7. Setting the Unit - Vertical Installation 7.1 Considerations Provide a minimum height of 14 inches for proper unrestricted airflow below the unit. Allow a minimum of 21 inches clearance in front of the air handler to permit maintenance and removal of filter. •...
  • Page 18 7.3 Downflow Installation • Downflow installation must comply with national, state, and local codes. • The air handlers are rated for zero clearance from combustible materials. STEP 1 - Prepare the location site as appropriate for your application and per national, state, and local code requirements.

  • Page 19: Section 8. Setting The Unit - Horizontal Installation

    Section 8. Setting the Unit - Horizontal Installation 8.1 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 puncture the unit cabinet in any location other than the ones Field Supplied illustrated in this Installer Guide or in an approved ac- Isolators...

  • Page 20: 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 21: Section 10. Refrigerant Line

    Table 10.1 Refrigerant Line Set and Connection Sizes Vapor Line Liquid Line Model Connection Connection TAM4A0A18S11ED, TAM4A0A18S11SD TAM4A0A24S21ED, TAM4A0A24S21SD TAM4A0A30S21ED, TAM4A0A30S21SD TAM4A0A36S31ED, TAM4A0A36S31SD TAM4A0B42S31ED, TAM4A0B42S31SD TAM4A0C48S41ED, TAM4A0C48S41SD TAM4A0C60S51ED, TAM4A0C60S51SD Note: All AHRI listed systems which are inclusive of the above fan coil units were tested with 25 feet of tubing.

  • Page 22: 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 Panel Removal) Panel Line Set Panel Coil Panel Important: Do NOT unseal coil refrigerant connec- tion stubs until ready to make connections. STEP 2 - Remove the sealing plug from the indoor coil suction (vapor) line.
  • Page 23 Important: Heat Sensitive Sensors. The Gas Temperature Sensor must be removed or Wet Rag on a wet rag must be wrapped around the suction line Gas Temperature between the Sensor and the braze joint to protect it Sensor (GT) from failure due to overheating. STEP 5 - Braze refrigerant line connections.
  • Page 24 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.

  • Page 25: Section 12. Condensate Drain Piping

    Section 12. Condensate Drain Piping 12.1 Condensate Drain Piping Considerations • Do not use reducing fittings in the condensate • Condensate drain plumbing must comply with na- drain lines. tional, state, and local codes. • Do not connect the drain line to a closed drain •...
  • Page 26 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...

  • Page 27: Section 13. Electrical - Low Voltage

    Section 13. Electrical - Low Voltage 13.1 Low Voltage Maximum Wire Length Table 13.1 defines the maximum total length of low Table 13.1 voltage wiring from the outdoor unit, to the indoor 24 VOLTS unit, and to the thermostat. WIRE SIZE MAX.
  • Page 28 STEP 5 - Using field supplied wire nuts, make connections per hookup diagrams. Air Handler Hook-up Diagram Cooling W2 Pink W3 Brown W1 White * Air Conditioner Air Handler Comfort Control Yellow White White Green Green Blue Yellow Yellow Orange Blue Blue •...
  • Page 29 Air Handler Hook-up Diagram Heat Pump W2 Pink W3 Brown W1 White * Heat Pump Yellow Black Air Handler (X2) Comfort Control Orange Blue Y - Yellow White Green Yellow Orange O - Orange B - Blue Blue R - Red W1 - White •...

  • Page 30: Section 14. Electrical - High Voltage

    Section 14. Electrical - High Voltage 14.1 High Voltage Power Supply WARNING The high voltage power supply must match the equipment nameplate. LIVE ELECTRICAL COMPONENTS! During installation, testing, servicing, and trouble- Power wiring, including ground wiring, must comply shooting of this product, it may be necessary to work with national, state, and local codes.
  • Page 31 STEP 4 - If an electric heater IS NOT being BLACK installed, remove the pigtail harness from the GREEN - GROUND documentation pack and connect it to the plug on the inside of the Heater Compartment in the cabinet. If an electric heater IS being installed, see the Installer’s Guide shipped with the electric heater.
  • Page 32 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. 14.3 Secure Coil (All Applications) STEP 1 - Remove screw and coil panel bracket from documentation packet.

  • Page 33: Section 15. Filters

    Section 15. Filters 15.1 Filter Considerations • A filter must be installed within the system. • A filter channel is provided in the unit, at the bot- tom of the Blower/Filter compartment. • For customer ease of fil ter maintenance, it is recommended that a properly sized remote filter grill(s) be installed for units that are difficult to access.

  • Page 34: Section 16. Unit Outline Drawing

    Section 16. Unit Outline Drawing MODEL NO. FLOW GAS LINE CONTROL BRAZE TAM4A0A18S11 49.9 39.6 14.5 17.5 14.5 26.7 TAM4A0A24S21 49.9 39.6 14.5 17.5 14.5 26.7 TAM4A0A30S21 49.9 39.6 14.5 17.5 14.5 26.7 TAM4A0A36S31 49.9 39.6 14.5 17.5 14.5 24.4 TAM4A0B42S31 55.7 45.5...

  • Page 35: 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 36: Section 18. Sequence Of Operation

    Section 18. Sequence of Operation 18.1 Sequence of Operation TAM4 Sequence of Operation Abbreviations Normally closed contacts on the EVC will pass 24VAC to the YO terminal providing power to the • EVC = Expansion Valve Control outdoor unit control circuit •...

  • Page 37: Section 19. Checkout Procedures

    Freeze Protection The EVC control has the ability to sense when the coil is beginning to ice. When this event occurs, the contacts to the YO circuit will open and de-energize the OD unit. The indoor blower motor will continue to run to aid in defrosting the coil.
  • Page 38 About Trane and American Standard Heating and Air Conditioning Trane and American Standard create comfortable, energy efficient indoor environments for residential applications. For more information, please visit www.trane.com or www.americanstandardair.com The manufacturer has a policy of continuous data improvement and it reserves the right to change design and specifications without notice. We are committed to using environmentally conscious print practices.

This manual is also suitable for:

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