Trane TAM7A0A24H21SC Assembly instructions

SSAAFFEETTYY WWAARRNNIINNGG
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and
air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered
equipment by an unqualified person could result in death or serious injury. When working on the equipment, observe all precautions in the
literature and on the tags, stickers, and labels that are attached to the equipment.
November 2013 18-GJ06D2-2A
Air Handlers
Convertible 2 — 5 Ton
TAM7A0A24H21SC
TAM7A0B30H21SC
TAM7A0C36H31SC
TAM7A0C42H31SC
TAM7A0C48H41SC
TAM7B0C60H51SB
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TAM7 Trouble
Shooting Video
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Installer’s Guide

©2012 Trane 18-GJ06D2-2A
SAFETY SECTION
AIR HANDLERS
IImmppoorrttaanntt — This document contains a wiring
diagram, a parts list, and service information. This is
customer property and is to remain with this unit.
Please return to service information pack upon
completion of work.
WWAARRNNIINNGG
HHAAZZAARRDDOOUUSS VVOOLLTTAAGGEE!!
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CCAAUUTTIIOONN
GGRROOUUNNDDIINNGG RREEQQUUIIRREEDD!!
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ssttrraappss,, cclliippss,, nnuuttss,, oorr wwaasshheerrss uusseedd ttoo ccoommpplleettee aa
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bbee rreettuurrnneedd ttoo tthheeiirr oorriiggiinnaall ppoossiittiioonn aanndd pprrooppeerrllyy
ffaasstteenneedd..
WWAARRNNIINNGG
LLIIVVEE EELLEECCTTRRIICCAALL CCOOMMPPOONNEENNTTSS!!
FFaaiilluurree ttoo ffoollllooww tthhiiss WWaarrnniinngg ccoouulldd rreessuulltt iinn
pprrooppeerrttyy ddaammaaggee,, sseevveerree ppeerrssoonnaall iinnjjuurryy,, oorr ddeeaatthh..
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nneecceessssaarryy ttoo wwoorrkk wwiitthh lliivvee eelleeccttrriiccaall ccoommppoonneennttss
dduurriinngg iinnssttaallllaattiioonn,, tteessttiinngg,, sseerrvviicciinngg,, aanndd
ttrroouubblleesshhoooottiinngg ooff tthhiiss pprroodduucctt..
WWAARRNNIINNGG
PPRREESSSSUURRIIZZEEDD RREEFFRRIIGGEERRAANNTT!!
FFaaiilluurree ttoo ffoollllooww tthhiiss WWaarrnniinngg ccoouulldd rreessuulltt iinn
ppeerrssoonnaall iinnjjuurryy
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pprreessssuurree.. RReeccoovveerr rreeffrriiggeerraanntt ttoo rreelliieevvee pprreessssuurree
bbeeffoorree ooppeenniinngg tthhee ssyysstteemm.. DDoo nnoo uussee nnoonn--
aapppprroovveedd rreeffrriiggeerraannttss oorr rreeffrriiggeerraanntt ssuubbssttiittuutteess oorr
rreeffrriiggeerraanntt aaddddiittiivveess..
CCAAUUTTIIOONN
SSHHAARRPP EEDDGGEE HHAAZZAARRDD!!
FFaaiilluurree ttoo ffoollllooww tthhiiss CCaauuttiioonn ccoouulldd rreessuulltt iinn
pprrooppeerrttyy ddaammaaggee oorr ppeerrssoonnaall iinnjjuurryy..
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ccuuttss mmaaddee oonn sshheeeett mmeettaall wwhhiillee iinnssttaalllliinngg oorr
sseerrvviicciinngg..
NNoottee:: Representative illustrations only included in this
document. Most illustrations display the upflow
configuration.

18-GJ06D2-2A 3
Installer Guide Notes . . . . . . . . . . . . . . . . . . . . . . . 4
Unit Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Unit Install Preparation . . . . . . . . . . . . . . . . . . . . . 7
Optional Equipment . . . . . . . . . . . . . . . . . . . . . . . . 8
Optional Cabinet Disassembly. . . . . . . . . . . . . . 9
Placing Unit at Location . . . . . . . . . . . . . . . . . . . 14
Unit Location Considerations . . . . . . . . . . . . . . 15
Four-Way Conversion. . . . . . . . . . . . . . . . . . . . . . 16
Ducted and Non-Ducted
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Additional Unit Preparation
Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Setting the Unit — Vertical
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Setting the Unit — Horizontal
Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Connecting the Duct work . . . . . . . . . . . . . . . . . 24
Refrigerant Line . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Refrigerant System Layout . . . . . . . . . . . . . . . 25
Refrigerant Line Brazing . . . . . . . . . . . . . . . . . . . 26
Condensate Drain Piping . . . . . . . . . . . . . . . . . . 29
Electrical — Low Voltage . . . . . . . . . . . . . . . . . . 31
Dip Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Indoor Blower Options . . . . . . . . . . . . . . . . . . . . 40
Control Plate Reinstall . . . . . . . . . . . . . . . . . . . . . 41
Electrical — High Voltage . . . . . . . . . . . . . . . . . . 42
TAM7 OUTLINE DRAWING . . . . . . . . . . . . . . . . 45
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
System Charge Adjustments . . . . . . . . . . . . . 46
System Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
TAM7 Sequence of Operation . . . . . . . . . . . . . 48
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Checkout Procedures . . . . . . . . . . . . . . . . . . . . . . 50
Table of Contents

418-GJ06D2-2A
Installer Guide Notes
AALLLL PPhhaasseess ooff tthhiiss iinnssttaallllaattiioonn mmuusstt ccoommppllyy wwiitthh
NNAATTIIOONNAALL,, SSTTAATTEE aanndd LLOOCCAALL CCOODDEESS!!
IImmppoorrttaanntt:: This Document is customer property and is
to remain with t his unit. Please return to
service information upon completion of
work
IImmppoorrttaanntt:: 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 purchaser’s
purposes, the matter should be referred to
your installing dealer or local distributor.
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oonn rreeaaddiinngg tthhee CCoonnttrrooll BBooaarrdd LLEEDDss,, AAiirr FFllooww TTaabblleess
aanndd TTrroouubblleesshhoooottiinngg FFlloowwcchhaarrttss..
NNoottee:: The manufacturer recommends installing ONLY
A.H.R.I. 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.
NNoottee:: Condensation may occur on the surface of the air
handler when installed in unconditioned spaces,
verify that all electrical and refrigerant line
penetrations on the air handler are sealed
completely.
The TAM7 air handlers will only use the following
internal electric heaters:
BAYEVAC04BK1AA BAYEVAC10LG1AA
BAYEVAC04LG1AA BAYEVBC15BK1AA
BAYEVAC05BK1AA BAYEVBC20BK1AA
BAYEVAC05LG1AA BAYEVCC25BK1AA
BAYEVAC08BK1AA BAYEVAC10LG3AA
BAYEVAC08LG1AA BAYEVBC15LG3AA
BAYEVAC10BK1AA
NNoottee:: Duct heaters cannot be applied with this air
handler.

18-GJ06D2-2A 5
Unit Design
Table 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 puncture the unit cabinet in any
location other than the ones illustrated.
Important: Under no conditions should metal strapping be attached
to the unit to be used as support mechanisms for
carrying or suspension purposes.
Screws can be
drilled into bottom of
unit. (1/2” max.
screw length)
(Typical all sides)
Screws, saw cuts,
and other penetra-
tions are allowed
in the blower
section for
installation of Side
Return Kit.
Screws are allowed up to 3- 3/4”
from the top of the cabinet
(heater compartment).
(Typical both sides)
Screws for flange kit
attachm ent are allowed
along the interior of
the cabinet (see arrows)
(Typical all sides)
No penetrations
allowed.
(Typical all sides)
Screws allowed only
in the first 3/4” of
front bottom of unit
(in cross m ember)
Table 2. Panel Removal
The unit contains four (4) access panels: Blower/Filter, Coil, Line Set,
and Heater.
The Blower/Filter panel is removed using 1/4 turn thumb screws.
1. Turn thumb screws on Blower/Filter panel.
2. Pull top of panel out, away from cabinet.
3. Lift panel up out of channel.
4. Set aside.

618-GJ06D2-2A
The Coil, Line Set, and Heater panels are removed using Phillips head
screws.
Removal requires #3 Size Phillips
Coil and Heater panels must be removed prior to removing the Line
Set panel.
To remove Coil Panel:
1. Turn screws on Coil panel.
2. Pull bottom of panel out, away from cabinet.
3. Pull panel down and out of channel.
4. Set aside.
To remove Heater Panel:
1. Turn screws on Heater panel.
2. Pull panel straight out, away from cabinet.
3. Set aside.
00
0
0
Removal of the Line Set panel is required for all refrigerant line brazing
and some condensate line assembly depending on your orientation.
To remove Line Set panel:
1. Remove both Heater and Coil panels.
2. Turn screws on Line Set panel.
3. Pull panel straight out, away from cabinet.
4. Set aside.
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.
UUnniitt DDeessiiggnn

18-GJ06D2-2A 7
Unit Install Preparation
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).
Note: After unit is removed from the carton, depress the Schrader
valve, if equipped, to verify coil is pressurized. For units with
rubber plugs in both suction and liquid lines, carefully remove
the liquid line plug first. If no pressure is released, check for
leaks.
Note: Remove the shipping block from the blower compartment.

818-GJ06D2-2A
Optional Equipment
Accessory Number Description Fits Cabinet Size
BAYEVAC04BK1AA Electric Heater, 4kW, Breaker, RS-485 Control, 1 Ph A to C
BAYEVAC04LG1AA Electric Heater, 4kW, Lugs, RS-485 Control, 1 Ph A to C
BAYEVAC05BK1AA Electric Heater, 5kW, Breaker, RS-485 Control, 1 Ph A to C
BAYEVAC05LG1AA Electric Heater, 5kW, Lugs, RS-485 Control, 1 Ph A to C
BAYEVAC08BK1AA Electric Heater, 8kW, Breaker, RS-485 Control, 1 Ph A to C
BAYEVAC08LG1AA Electric Heater, 8kW, Lugs, RS-485 Control, 1 Ph A to C
BAYEVAC10BK1AA Electric Heater, 10kW, Breaker, RS-485 Control, 1 Ph A to C
BAYEVAC10LG1AA Electric Heater, 10kW, Lugs, RS-485 Control, 1 Ph A to C
BAYEVBC15BK1AA Electric Heater, 15kW, Breaker, RS-485 Control, 1 Ph B to C
BAYEVBC20BK1AA Electric Heater, 20kW, Breaker, RS-485 Control, 1 Ph C
BAYEVCC25BK1AA Electric Heater, 25kW, Breaker, RS-485 Control, 1 Ph C
BAYEVAC10LG3AA Electric Heater, 10kW, Lugs, RS-485 Control, 3 Ph A to C
BAYEVBC15LG3AA Electric Heater, 15kW, Lugs, RS-485 Control, 3 Ph B to C
BAYSUPFLGAA Supply Duct Flange A A
BAYSUPFLGBA Supply Duct Flange B B
BAYSUPFLGCA Supply Duct Flange C C
BAYRETFLGAA Return Duct Flange A A
BAYRETFLGBA Return Duct Flange B B
BAYRETFLGCA Return Duct Flange C C
BAYSRKIT100A Side Return Kit A to C
BAYFLR1620A High Velocity Filter Kit, 16” x 20” x 1” (10 filters) A
BAYFLR2020A High Velocity Filter Kit, 20” x 20” x 1” (10 filters) B
BAYFLR2220A High Velocity Filter Kit, 22” x 20” x 1” (10 filters) C
TASB175SB Plenum Stand with integrated sound baffle A A
TASB215SB Plenum Stand with integrated sound baffle B B
TASB235SB Plenum Stand with integrated sound baffle C C
MITISRKIT01A Side Return Kit with 16” x 20” Filter A to C
BAYFRKIT175 Front Return Kit for 17.5” Cabinet A
BAYFRKIT210 Front Return Kit for 21.0” Cabinet B
BAYFRKIT235 Front Return Kit for 23.5” Cabinet C
BAYBAFKT175A Sound Baffle Kit for 17.5” Cabinet A
BAYBAFKT215A Sound Baffle Kit for 21.0” Cabinet B
BAYBAFKT235A Sound Baffle Kit for 23.5” Cabinet C
TASSBK175 Sound Baffle Kit for 17.5” Cabinet A
TASSBK210 Sound Baffle Kit for 21.0” Cabinet B
TASSBK235 Sound Baffle Kit for 23.5” Cabinet C
BAYICSKIT01A Internal Condensate Switch Kit A to C
BAYHHKIT001A Horizontal Hanger Kit A to C
BAYUVCLK001A UVC Lights A to C
BAYLVKIT100A Low Voltage Conduit Entry Kit A to C
BAYSPEKT200A Single Power Entry Kit A to C
BAYWVAA05SC1AA Hydronic Coil — 50,000 BTUH — Slide-in with control A to A
BAYWVBB07SC1AA Hydronic Coil — 70,000 BTUH — Slide-in with control B to B
BAYWVCC08SC1AA Hydronic Coil — 80,000 BTUH — Slide-in with control C to C
BAYWACC11SC1AA Hydronic Coil — 100,000 BTUH — Add on C to C
BAYWVBRD485A RS-485 Control for BAYWACC11SC1AA C to C
BAYINSKT175A Solcoustic® Liner Kit for 17.5” cabinet A
BAYINSKT215A Solcoustic® Liner Kit for 21.5” cabinet B
BAYINSKT235A Solcoustic® Liner Kit for 23.5” cabinet C
BAYCNDPIP01A 3/4” PVC Threaded Pipe Kit foam Seal (10 per box) A to C

18-GJ06D2-2A 9
Optional Cabinet Disassembly
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. Ensure
electrical connections are secure and the plug clips are engaged.
1. Remove all four front panels.
See Table 2, p. 5
Blo
wer Electrical
Connections

10 18-GJ06D2-2A
2. Disconnect the two wiring connections routed to the blower
assembly.
3. Slide Blower assembly out of unit using built-in blower support
channels and set aside.
Wiring
Connecti ons
Blower Support
Channel
4. Remove airflow diverter from the bottom of coil drain pan by
gripping the plastic diverter while using your thumbs to spread
the top of the diverter slightly outwards and then pulling down
and out through the blower opening as illustrated.
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