Trane AM4A0A18S11SA Series Installer's Manual
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Trane AM4A0A18S11SA Series Installer's Manual

Trane AM4A0A18S11SA Series Installer's Manual

Convertible air handlers 1-1/2 – 5 ton
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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: TAM4A0C60S51SB and *AM4A0C60S51SA
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 and AAM4 air handlers will only
use the following internal electric heaters:
BAYEAAC05BK1AA, BAYEAAC05LG1AA,
BAYEAAC08BK1AA, BAYEAAC08LG1AA,
BAYEAAC10BK1AA, BAYEAAC10LG1AA,
BAYEAAC10LG3AA, BAYEABC15BK1AA,
BAYEABC15LG3AA, BAYEABC20BK1AA,
BAYEACC25BK1AA
Installer's Guide
Convertible Air Handlers
1-1/2 – 5 Ton
TAM4A0A18S11SB
TAM4A0A24S21SB
TAM4A0A30S21SB
TAM4A0A36S31SB
TAM4A0B42S31SB
TAM4A0C48S41SB
TAM4A0C60S51SB
18-GJ05D1-5
*AM4A0A18S11SA
*AM4A0A24S21SA
*AM4A0A30S21SA
*AM4A0A36S31SA
*AM4A0B42S31SA
*AM4A0C48S41SA
*AM4A0C60S51SA
* May be "A" or "T"

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Summary of Contents for Trane AM4A0A18S11SA Series

  • Page 1 18-GJ05D1-5 Installer’s Guide Convertible Air Handlers 1-1/2 – 5 Ton TAM4A0A18S11SB *AM4A0A18S11SA TAM4A0A24S21SB *AM4A0A24S21SA TAM4A0A30S21SB *AM4A0A30S21SA TAM4A0A36S31SB *AM4A0A36S31SA TAM4A0B42S31SB *AM4A0B42S31SA TAM4A0C48S41SB *AM4A0C48S41SA TAM4A0C60S51SB *AM4A0C60S51SA * May be “A” or “T” 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 ................3 Section 2. Unit Design ..................4 Section 3. Unit Preparation ................6 Section 4. Optional Cabinet Disassembly ..........7 Section 5. Place Unit at Location ..............12 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 insulation, do not screw, cut, or otherwise punc- ture the unit cabinet in any location other than the ones illustrated.
  • Page 5 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 6: 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 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 2 - Disconnect the two wiring connections routed to the blower assembly. STEP 3 - Slide Blower assembly out of unit using built-in blower support channels and set aside. Wiring Connections Blower Support Channel STEP 4 - Remove airflow diverter from the bottom of coil drain pan by gripping the plastic diverter, using Diverter your thumbs to spread the top of the diverter slightly...
  • Page 9 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 10 STEP 8 - Lift the Coil section up and away from the Blower section. Set aside.
  • Page 11 STEP 9 - For extremely tight spaces where the cabinet needs to be rotated through a small opening, remove the top panel and all cross members. Use a manual driver to avoid stripping screw holes. Note: Cross Members are removed by rotating them toward the door opening and then lifting up and out of the unit.

  • Page 12: 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 13: Section 6. Unit Location Considerations

    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. TAM4A0A18S11SB 49.9 x 17.5 x 21.8 *AM4A0A18S11SA TAM4A0A24S21SB 49.9 x 17.5 x 21.8 *AM4A0A24S21SA TAM4A0A30S21SB 49.9 x 17.5 x 21.8 *AM4A0A30S21SA TAM4A0A36S31SB...
  • Page 14 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. Refrigerant Connections Low Voltage...
  • Page 15 Airflow Control Horizontal Left Refrigerant Low Voltage Pocket Condensate Connections Connections Inside unit Drains inside unit Horizontal Left Configuration Control Low Voltage Pocket Connections Refrigerant Inside unit inside unit Connections Airflow Horizontal Right Condensate Drains Horizontal Right Configuration...
  • Page 16 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. Hazardous vapors can be distributed throughout the conditioned space and equipment damage can result.
  • Page 17 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 18: Section 7. Setting The Unit - Vertical Installation

    Section 7. Setting the Unit - Vertical Installation 7.1 Secure Coil (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 19 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 7.4 Secure Coil (Downflow Applications) STEP 1 - Remove Coil Panel.

  • Page 20: Section 8. Setting The Unit - Horizontal Installation

    Section 8. Setting the Unit - Horizontal Installation 8.1 Secure Coil (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 21: 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 22: Section 10. Refrigerant Line

    Section 10. Refrigerant Line 10.1 Refrigerant Line Connection Sizes Table 10.1 Refrigerant Line Set and Connection Sizes Vapor Line Liquid Line Model Connection Connection TAM4A0A18S11SB, *AM4A0A18S11SA TAM4A0A24S21SB, *AM4A0A24S21SA TAM4A0A30S21SB, *AM4A0A30S21SA TAM4A0A36S31SB, *AM4A0A36S31SA TAM4A0B42S31SB, *AM4A0B42S31SA TAM4A0C48S41SB, *AM4A0C48S41SA TAM4A0C60S51SB, *AM4A0C60S51SA Note: * May be “A” or “T” Note: All AHRI listed systems which are inclusive of the above fan coil units were tested with 25 feet of tubing.

  • Page 23: 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 plastic cap and Schrader valve core from the gas line.
  • Page 24 STEP 7 - Braze refrigerant line connections. Wet Rag on Note: The suction line must be insulated prior to Gas Temperature Sensor (GT) brazing the line set to the air handler stubs. 1. Pull back the insulation before brazing the suc- tion line.
  • Page 25 Important: Do not open the service valves until the refrigerant lines and indoor coil leak check and evacu- ation are complete. 0350 Microns STEP 10 - Evacuate until the micron gauge reads no higher than 350 microns, then close off the valve to the vacuum pump.

  • Page 26: 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 27 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. 3” minimum 3” min. clearance is recommended from cabinet to inside edge of tubing STEP 5 - Insulate the primary drain line to...

  • Page 28: Section 13. Electrical - Low Voltage

    Section 13. Electrical - Low Voltage 13.1 Low Voltage Maximum Wire Length Table 11.1 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 29 STEP 3 - Remove the control board from the control pocket by sliding the control pocket mounting plate out until the first stop is reached. Control Pocket Inside unit Control Board For Horizontal Right installations Only Remove the control board completely from the con- trol pocket.
  • Page 30 STEP 4 - Make connections per hookup diagrams. Air Handler Hook-up Diagram Cooling Air Handler Air Conditioner Comfort Control W3 * White White Blue Yellow Green Green Yellow Yellow Orange O ** Blue Blue R ** B - Blue Y - Yellow •...
  • Page 31 Air Handler Hook-up Diagram Heat Pump Heat Pump Black (X2) Yellow Air Handler Comfort Control Orange W3 * Blue White White W1 - White Green Green Yellow Yellow Orange Orange O ** O - Orange R ** R - Red Blue Blue B - Blue...
  • Page 32 STEP 7 - Slide control plate assembly into the control pocket until fully seated. The control plate should be flush with the outer edge of the unit. STEP 8 - Replace Coil panel making sure that the wires are located within the wire pass-through pro- vided in the panel.

  • Page 33: 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 34 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 35: 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 36: Section 16. Unit Outline Drawing

    Section 16. Unit Outline Drawing MODEL NO. FLOW GAS LINE CONTROL BRAZE TAM4A0A18, *AM4A0A18 49.9 39.6 14.5 17.5 14.5 26.7 EEV/24V TAM4A0A24, *AM4A0A24 49.9 39.6 14.5 17.5 14.5 26.7 EEV/24V TAM4A0A30, *AM4A0A30 49.9 39.6 14.5 17.5 14.5 26.7 EEV/24V TAM4A0A36, *AM4A0A36 49.9 39.6 14.5 17.5...

  • Page 37: 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 38: Section 18. Sequence Of Operation

    Section 18. Sequence of Operation 18.1 Sequence of Operation AM4 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 39: 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 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. 2012 www.trane.com...

This manual is also suitable for:

Am4a0a24s21sa seriesAm4a0a30s21sa seriesAm4a0a36s31sa seriesAm4a0b42s31sa seriesAm4a0c48s41sa seriesAm4a0c60s51sa series ... Show all

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