American Standard TAM9A0A24V21DA Assembly instructions

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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.
April 2020 1188--GGJJ8822DD11--11EE--EENN
Variable Speed Air Handlers
Convertible 2 — 5 Ton
TAM9A0A24V21DA
TAM9A0B30V31DA
TAM9A0C36V31DA
TAM9A0C42V41DA
TAM9A0C48V41DA
TAM9A0C60V51DA
NNoottee:: “Graphics in this document are for representation
only. Actual model may differ in appearance.”
NNoottee:: For use with BAYEA series heaters ONLY
Installer’s Guide

©2020 18-GJ82D1-1E-EN
SAFETY SECTION
AIR HANDLERS
II mmppoorrttaanntt— 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.
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II mmppoorrttaanntt:: Panel damage can occur with prolonged
exposure to POE lubricants. Air handler
front panels that come in contact with POE
oil must be washed immediately with
soapy water.
II mmppoorrttaanntt:: The TAM9 air handlers are only compatible
with BAYEA** internal electric heaters.
NNoottee:: Representative illustrations only included in this
document. Most illustrations display the upflow
configuration.

18-GJ82D1-1E-EN 3
Installer Guide Notes . . . . . . . . . . . . . . . . . . . . . . . 4
Unit Design. . . . ............................. 5
Unit Install Preparation . . . . . . . . . . . . . . . . . . . . . 7
Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . 8
Optional Cabinet Disassembly. . . . . . . . . . . . . . 9
Placing Unit at Location . . . . . . . . . . . . . . . . . . . 13
Unit Location Considerations . . . . . . . . . . . . . . 14
Four-Way Conversion . . . . . . . . . . . . . . . . . . . . . 15
Ducted and Non-Ducted Return
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Additional Unit Preparation
Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Setting the Unit — Vertical
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Setting the Unit — Horizontal
Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Connecting the Duct work . . . . . . . . . . . . . . . . . 22
Refrigerant Line . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Refrigerant System Layout . . . . . . . . . . . . . . . 23
Refrigerant Line Brazing . . . . . ..............24
Condensate Drain Piping ..................28
Electrical — Low Voltage ..................30
Control Panel Reinstallation ...............36
Electrical — High Voltage ..................37
TAM9 OUTLINE DRAWING ................40
Display Assembly / Human
Interface . . .................................41
TAM9 — Technician Menu and
Configuration tree . ........................42
Filters. . . . . .................................47
System Charge Adjustments . . . . . . . . . . . . . 47
System Start Up . . .........................48
TAM9 Sequence of Operation . . . ..........49
Abbreviations . .......................... 49
Fault Reporting . . . .........................51
Checkout Procedures . . . . ..................52
Table of Contents

418-GJ82D1-1E-EN
Installer Guide Notes
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II mmppoorrttaanntt:: This Document is customer property and is
to remain with t his unit. Please return to
service information upon completion of
work
II mmppoorrttaanntt:: 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.
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II mmppoorrttaanntt:: The low voltage wire harness is shipped in
the supplied document pack.
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 TAM9 air handlers will only use the following
internal electric heaters:
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NNoottee:: Duct heaters cannot be applied with this air
handler.
NNoottee:: The heater size needs to be configured in the
Configuration Menu.

18-GJ82D1-1E-EN 5
Unit Design
Table 1. Cabinet Penetration
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Screws can be drilled
into bottom of unit.
(1/2” max. screw length)
(Typical all sides)
Screws, saw cuts, and
other penetrations
are allowed in the
blower section for
installation of Side
Return Kit.
(Typical both sides)
Screws are allowed up to 3- 3/4”
from the top of the cabinet
(heater compartment).
(Typical both sides)
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attachment are allowed
along the interior of
the cabinet (see arrows)
(Typical all sides)
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allowed.
(Typical all sides)
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the rst 3/4” of front
bottom of unit (in cross
member)
Table 2. Panel Removal
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18-GJ82D1-1E-EN 7
Unit Install Preparation
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818-GJ82D1-1E-EN
Optional Accessories
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%$<,16.7$ 6ROFRXVWLF /LQHU .LW IRU ´ FDELQHW &
%$<&1'3,3$ ´ 39& 7KUHDGHG 3LSH .LW IRDP 6HDO  SHU ER[ $WR&
%$<$+(0,.,7$ (0,(), $LU +DQGOHU (OHFWURQLF QRLVH NLW IRU YDULDEOH VSHHG EORZHU PRWRU $WR&
D $ &DELQHW LV ´ ZLGH % &DELQHW LV ´ ZLGH & &DELQHW LV ´ ZLGH
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18-GJ82D1-1E-EN 9
Optional Cabinet Disassembly
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ODLG RQ LWV EDFN PDUNHG ³5($5´ RQ FDUWRQ
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VWUDLJKW RXW
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FKDQQHOV DQG VHW DVLGH
1RWH 5HPRYH WKH FDUGERDUG IURP WKH ERWWRP RI WKH EORZHU &XW WKH
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WKRVH ZLUH KDUQHVVHV LI QHFHVVDU\ DQG UHSODFH DIWHU UHLQVWDOOLQJ
1RWH ,I FXW ZLUH WLHV WKDW KHOG WKH VHQVRU PXVW EH UHSODFHG DIWHU WKH FRLO LV
SODFHG EDFN LQWR WKH FDELQHW

10 18-GJ82D1-1E-EN
 6OLGH &RLO DVVHPEO\ RXW RI XQLW XVLQJ EXLOWLQ FRLO VXSSRUW FKDQQHOV
DQG VHW DVLGH
Coil Support
Channel
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RI WKH ERWWRP KDOI RI WKH FDELQHW WR ORRVHQ WKH ORFNLQJ PHFKDQLVP
7KH ORFNV ORRVHQ E\ WXUQLQJ FRXQWHUFORFNZLVH DSSUR[LPDWHO\ 
RI D WXUQ
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18-GJ82D1-1E-EN 11
 /LIW WKH &RLO VHFWLRQ XS DQG DZD\ IURP WKH %ORZHU VHFWLRQ 6HW
DVLGH
1RWH :KHQ VHSDUDWLQJ WKH WZR FDELQHW SLHFHV PDNH VXUH WKH JDVNHW
UHPDLQV LQWDFW
OOppttiioonnaall CCaabbiinneettDDiissaasssseemmbbllyy

12 18-GJ82D1-1E-EN
 )RU H[WUHPHO\ WLJKW VSDFHV ZKHUH WKH FDELQHW QHHGV WR EH URWDWHG
WKURXJK D VPDOO RSHQLQJ UHPRYH WKH WRS SDQHO DQG DOO FURVV
PHPEHUV 8VH D PDQXDO GULYHU WR DYRLG VWULSSLQJ VFUHZ KROHV
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OOppttiioonnaall CCaabbiinneettDDiissaasssseemmbbllyy

18-GJ82D1-1E-EN 13
Placing Unit at Location
 &DUU\ WKH XQLW WR WKH LQVWDOODWLRQ ORFDWLRQ
 5HDVVHPEO\ E\ UHYHUVLQJ WKH VWHSV OLVWHG LQ 6HFWLRQ  LI
GLVDVVHPEO\ ZDV UHTXLUHG ,I FXW ZLUH WLHV WKDW KHOG WKH VHQVRU
ZLULQJ PXVW EH UHSODFHG
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WR WKH XQLW WR EH XVHG DV VXSSRUW PHFKDQLVPV IRU FDUU\LQJ
RU VXVSHQVLRQ SXUSRVHV
$SSURYHG &DUU\LQJ
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XVH DV KDQGOHV IRU OLIWLQJ DQG FDUU\LQJ WKH FRLO DQG EORZHU VHFWLRQV
Cross Members

14 18-GJ82D1-1E-EN
Unit Location Considerations
Table 3. Unit Dimensions and Weight
02'(/ 180%(5 +[:['
LQFKHV
&RLO DQG +HDWHU
&RPSDUWPHQW
+HLJKW 
LQFKHV
8QLW 1HW :HLJKW
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D
H
W
7$0$$9'$  [  [   
7$0$%9'$  [  [   
7$0$&9'$  [  [   
7$0$&9'$  [  [   
7$0$&9'$  [  [   
7$0$&9'$  [  [   
 %ORZHU FRPSDUWPHQW KHLJKW LV  LQFKHV

18-GJ82D1-1E-EN 15
Four-Way Conversion
7R SODFH WKH XQLW LQ WKH FRQILJXUDWLRQ \RXU DSSOLFDWLRQ UHTXLUHV XSIORZ GRZQIORZ KRUL]RQWDO ULJKW RU KRUL]RQWDO OHIW VLPSO\ WXUQ WKH XQLW WR
WKDW RULHQWDWLRQ 5HPHPEHU WR DGMXVW WKH EDGJH DFFRUGLQJO\
1RWH 7KH DLU KDQGOHUV DUH VKLSSHG IURP WKH IDFWRU\ VXLWDEOH IRU IRXUZD\ DSSOLFDWLRQ
1RWH (QWU\ IRU ORZ YROWDJH FRQQHFWLRQV LV DOORZHG RQ HLWKHU VLGH RI FDELQHW
Airflow
Upflow Configuration
Refrigerant
Connections
Low Voltage
Connections
Inside Unit
Control
Pocket
Inside Unit
Upflow
Condensate
Drains
Low Voltage
Connections
Inside Unit
Control Pocket
Inside Unit
Refrigerant
Connections
Downflow
Condensate
Drains

16 18-GJ82D1-1E-EN
Airflow
Refrigerant
Connections
Horizontal Left
Condensate
Drains
Low Voltage
Connections
Inside Unit
Control Pocket
Inside Unit
Horizontal Left Configuration
Horizontal Right Configuration
Airflow
Control
Pocket
Inside Unit
Low Voltage
Connections
Inside Unit
Refrigerant
Connections
Horizontal Right
Condensate Drains
FFoouurr--WWaayyCCoonnvveerrssiioonn

18-GJ82D1-1E-EN 17
Ducted and Non-Ducted Return Applications
Table 4. Non-Ducted Applications
CCAAUUTTIIOONN
HHAAZZAARRDDOOUUSSVVAAPPOORRSS!!
FFaaiilluurreettooffoolllloowwtthhiissCCaauuttiioonnccoouullddrreessuullttiinn
pprrooppeerrttyyddaammaaggeeoorrppeerrssoonnaall iinnjjuurryy..
HHaazzaarrddoouussvvaappoorrssccaannbbeeddiissttrriibbuutteeddtthhrroouugghhoouutttthhe
e
ccoonnddiittiioonneeddssppaacceeaannddeeqquuiippmmeennttddaammaaggeeccaann
rreessuulltt.. DDoonnoottiinnssttaallll aannaaiirrhhaannddlleerrwwiitthhaannoonn--
dduucctteeddrreettuurrnniinntthheessaammeecclloosseett,, aallccoovvee,, oor
ruuttiilliittyy
rroooommaassaaffoossssiill ffuueell ddeevviiccee..
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UHWXUQ GXFW UHTXLUHV WKH XVH RI D SOHQXP DFFHVVRU\ NLW DV LW XVHV
WKH DUHD VSDFH DV D UHWXUQ DLU SOHQXP 0LQLPXP FOHDUDQFHV WR
FRPEXVWLEOH PDWHULDOV DQG VHUYLFH DFFHVV PXVW EH REVHUYHG VHH
RXWOLQH GUDZLQJ
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HOHFWULF KRW ZDWHU KHDWHU EXW LQ QR FDVH VKDOO D IRVVLO IXHO GHYLFH EH
LQVWDOOHG DQGRU RSHUDWHG LQ WKH VDPH FORVHW DOFRYH RU XWLOLW\
URRP
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ZLWKRXW D UHWXUQ DLU GXFW
Supply Duct
Plenum
Accessory with
Safety Guard
Non-Ducted
Return
Table 5. Ducted Return Installations.
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 ,QVWDOODWLRQ LQ DQ DWWLF JDUDJH RU FUDZO VSDFH ZLWK GXFWHG VXSSO\
DQG UHWXUQ DLU LV DSSURSULDWH 0LQLPXP FOHDUDQFHV WR FRPEXVWLEOH
PDWHULDOV DQG VHUYLFH DFFHVV PXVW EH REVHUYHG VHH RXWOLQH
GUDZLQJ
Supply Duct
Return Duct
Ducted
Return

18 18-GJ82D1-1E-EN
Additional Unit Preparation Considerations
For proper installation the following items must be
considered prior to moving the unit to its installation
site:
• Pursuant to Florida Building Code 13–610.2A.2.1,
this unit meets the criteria for a factory sealed air
handler.
• If a side return is needed for your application, the
side return MUST be prepared prior to moving the
air handler to its installation location. See the Side
Return Kit #BAYSRKIT100A Installer Guide for
detailed instructions, if used.
• When the air handler is located adjacent to the
living area, the system should be carefully designed
with returns which minimize noise transmission
through the return air grill. Although the air handler
is designed with large blowers operating at
moderate speeds, any blower moving a high
volume of air will produce audible noise which
could be objectionable when the unit is located very
close to a living area. It is often advisable to route
the return ducts under the floor through the attic.
Such design permits the installation of air return
remote from the living area (i.e. central hall).
• Study the unit’s outline drawing and dimensions
prior to selecting the installation site. Note in
advance which electrical conduit entry points and
condensate drain holes are to be used, so that
proper clearance allowances can be made for
installation and future maintenance.
• Installation of the air handler must be made prior to
, or at the same time as, the installation of the
outdoor unit in order to allow access for refrigerant
lines.
• Consider the overall space needed when external
accessories are used, additional height and width
requirements may exist.
• These units are not approved for outdoor
installation.
• These units must be installed in the proper air flow
direction.
• Any third-party heater accessories or hydronic coils
must be downstream of the unit.
NNoottee:: No atomizing style humidifier is allowed in the
return plenum with the use of this unit.
• Excessive bypass air may cause water blow-off,
which will adversely affect system operation and air
cleaner performance. To verify bypass airflow,
follow the Bypass Humidifier Pre-Installation
Checkout and Set-Up Procedures available through
your local distributor. Ask for publication number
18–CH37D1–* Steam and Flow-through Fan Power
Duct-mounted Humidifiers. Follow the humidifier
installation instructions. These should only be
installed on the supply air side of the system.
NNoottee:: The air handlers have been evaluated in
accordance with the Code of Federal Regulations,
Chapter XX, Part 3280 or the equivalent.
“SUITABLE FOR MOBILE HOME USE.”
NNoottee:: TThhiissuunniittiisscceerrttiiffiieeddttooUULL11999955.. TThheeiinntteerriioorr
c
caabbiinneettwwaallll mmeeeettsstthheeffoolllloowwiinngg::
— UL94–5VA Flame Class Listed
— UL723 Steiner Tunnel Listed for 25/50 Flame/Smoke
— UL746C Listed for Exposure to Ultraviolet Light,
Water Exposure and Immersion

18-GJ82D1-1E-EN 19
Setting the Unit — Vertical Installation
Table 6. Considerations
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EHORZ WKH XQLW $OORZ D PLQLPXP RI  LQFKHV FOHDUDQFH LQ IURQW RI WKH
DLU KDQGOHU WR SHUPLW PDLQWHQDQFH DQG UHPRYDO RI ILOWHU
 3RVLWLRQ XQLW RQ VXLWDEOH IRXQGDWLRQ ,I D PDQXIDFWXUHU DSSURYHG
DFFHVVRU\ LV QRW XVHG D IUDPH VWURQJ HQRXJK WR VXSSRUW WKH WRWDO
ZHLJKW RI WKH XQLW DFFHVVRULHV DQG GXFW ZRUN PXVW EH SURYLGHG
 ,VRODWH XQLW IURP WKH IRXQGDWLRQ XVLQJ D VXLWDEOH LVRODWLQJ
PDWHULDO
1RWH 7KH IROORZLQJ VRXQG LQVXODWLRQ NLWV DUH DYDLODEOH WR OHVVHQ
REMHFWLRQDEOH VRXQG
%$<,16.7$ IRU XVH ZLWK ´ FDELQHWV
%$<,16.7$ IRU XVH ZLWK ´ FDELQHWV
%$<,16.7$ IRU XVH ZLWK ´ FDELQHWV
7\SLFDO &ORVHW ,QVWDOODWLRQ
Table 7. Upflow Installation
7$6% ,QVWDOODWLRQ
 ,QVWDOO WKH 7$6% SOHQXP VWDQG ZLWK LQWHJUDWHG VRXQG EDIIOH XVLQJ
WKH 7$6% LQVWUXFWLRQV
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7$6%6% IRU XVH ZLWK ´ FDELQHWV
7$6%6% IRU XVH ZLWK ´ FDELQHWV
7$6%6% IRU XVH ZLWK ´ FDELQHWV
0,7,65.,7 ² 6LGH UHWXUQ NLW ZLWK ´ [ ´ ILOWHU
&RQWDFW \RXU GLVWULEXWRU IRU PRUH LQIRUPDWLRQ
1RWH 7KH IROORZLQJ VRXQG LQVXODWLRQ NLWV DUH DYDLODEOH WR OHVVHQ
REMHFWLRQDEOH VRXQG
%$<,16.7$ IRU XVH ZLWK ´ FDELQHWV
%$<,16.7$ IRU XVH ZLWK ´ FDELQHWV
%$<,16.7$ IRU XVH ZLWK ´ FDELQHWV
Airflow
Airflow
Airflow
7\SLFDO 7$6% ,QVWDOODWLRQ

20 18-GJ82D1-1E-EN
Table 8. Plenum Installation
 $VVHPEOH WKH SOHQXP XVLQJ WKH SOHQXP¶V ,QVWDOOHU *XLGH
2Q XQLWV ZLWK VKHHW PHWDO UHWXUQV 5HWXUQ SOHQXP PXVW EH IODQJHG
6KHHW PHWDO GULOO SRLQW VFUHZV PXVW EH ´ LQ OHQJWK RU VKRUWHU
Airflow
7\SLFDO 3OHQXP ,QVWDOODWLRQ
Table 9. Downflow Installation
 'RZQIORZ LQVWDOODWLRQ PXVW FRPSO\ ZLWK QDWLRQDO VWDWH DQG ORFDO
FRGHV
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SHU QDWLRQDO VWDWH DQG ORFDO FRGH UHTXLUHPHQWV
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7\SLFDO 'RZQIORZ ,QVWDOODWLRQ
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