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American Standard TAM9A0A24V21DB Service Facts
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American Standard TAM9A0A24V21DB Service Facts

American Standard TAM9A0A24V21DB Service Facts

Variable speed outdoor compatible convertible air handlers
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Service Facts
Communicating / 24 Volt control
Variable Speed Outdoor Compatible
Convertible Air Handlers
TAM9A0A24V21DB
TAM9A0B30V31DB
TAM9A0C36V31DB
TAM9A0C42V41DB
TAM9A0C48V41DB
TAM9A0C60V51DB
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.
February 2022
S S A A F F E E T T Y Y W W A A R R N N I I N N G G
T T A A M M 9 9 - - S S F F - - 1 1 E E - - E E N N
N N o o t t e e : : "Graphics in this document are for representation
only. Actual model may differ in appearance."
N N o o t t e e : : For use with BAYEA series heaters ONLY

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Summary of Contents for American Standard TAM9A0A24V21DB

  • Page 1 Service Facts Communicating / 24 Volt control Variable Speed Outdoor Compatible Convertible Air Handlers TAM9A0A24V21DB TAM9A0B30V31DB TAM9A0C36V31DB TAM9A0C42V41DB TAM9A0C48V41DB TAM9A0C60V51DB N N o o t t e e : : “Graphics in this document are for representation only. Actual model may differ in appearance.”...
  • Page 2 SAFETY SECTION AIR HANDLERS I I m m p p o o r r t t a a n n t t — This document contains a wiring W W A A R R N N I I N N G G diagram, a parts list, and service information.

  • Page 3: Product Specifications

    PRODUCT SPECIFICATIONS MODEL TAM9A0A24V21DB TAM9A0B30V31DB TAM9A0C36V31DB RATED VOLTS/PH/HZ. 200 — 230/1/60 200 — 230/1/60 200 — 230/1/60 RATINGS See O.D. Specifications See O.D. Specifications See O.D. Specifications INDOOR COIL — Type Plate Fin Plate Fin Plate Fin Rows — F.P.I.
  • Page 4 P P R R O O D D U U C C T T S S P P E E C C I I F F I I C C A A T T I I O O N N S S MODEL TAM9A0C42V41DB TAM9A0C48V41DB...
  • Page 5 Wiring — D806028P01RevD TAM9-SF-1E-EN...
  • Page 6 TAM9 Sequence of Operation Abbreviations N N o o t t e e : : Delay profiles from the thermostat may change blower motor timing and actual airflow demand. • AFC = Airflow Control • EVC = Expansion Valve Control H H e e a a t t p p u u m m p p ( ( c c o o m m p p r r e e s s s s o o r r o o n n l l y y ) ) •...
  • Page 7 T T A A M M 9 9 S S e e q q u u e e n n c c e e o o f f O O p p e e r r a a t t i i o o n n 3.

  • Page 8: Fault Reporting

    Fault Reporting Fault Reporting Control boards in this unit store active and historical faults. Each control board will report active faults continuously and will report the last four faults stored after a power cycle of the unit. See Fault Table in the Service Facts for list of fault codes.
  • Page 9 TAM9 Air Flow Performance Tables TAM9-SF-1E-EN...
  • Page 10 T T A A M M 9 9 A A i i r r F F l l o o w w P P e e r r f f o o r r m m a a n n c c e e T T a a b b l l e e s s TAM9-SF-1E-EN...
  • Page 11 T T A A M M 9 9 A A i i r r F F l l o o w w P P e e r r f f o o r r m m a a n n c c e e T T a a b b l l e e s s TAM9-SF-1E-EN...
  • Page 12 T T A A M M 9 9 A A i i r r F F l l o o w w P P e e r r f f o o r r m m a a n n c c e e T T a a b b l l e e s s TAM9-SF-1E-EN...
  • Page 13 T T A A M M 9 9 A A i i r r F F l l o o w w P P e e r r f f o o r r m m a a n n c c e e T T a a b b l l e e s s TAM9-SF-1E-EN...
  • Page 14 T T A A M M 9 9 A A i i r r F F l l o o w w P P e e r r f f o o r r m m a a n n c c e e T T a a b b l l e e s s TAM9-SF-1E-EN...
  • Page 15 HEATER ATTRIBUTE DATA N N o o t t e e : : Heater size must be set in Configuration Menu. TAM9A0A24V21DB 240 Volt 208 Volt No. of Minimum Minimum Heater Maximum Maximum Capacity Capacity Heater Model No. Heater Amps...
  • Page 16 H H E E A A T T E E R R A A T T T T R R I I B B U U T T E E D D A A T T A A TAM9A0C36V31DB 240 Volt 208 Volt Maxi- Maxi-...
  • Page 17 H H E E A A T T E E R R A A T T T T R R I I B B U U T T E E D D A A T T A A TAM9A0C48V41DB 240 Volt 208 Volt No.
  • Page 18 Variable Speed Outdoor units must be charged per the outdoor unit instructions. All other matches must be charged per the nameplate charging instructions. DISTANCE FROM BELLY BAND MODEL DIM “ A “ TO SHAFT FACE OF MOTOR FOR 2–3/8 TAM9A0A24V21DB MINIMUM VIBRATION 2–3/8 TAM9A0B30V31DB BLOWER HOUSING 2–3/8 TAM9A0C36V31DB...
  • Page 19 Air Handler Control Panel - LEDs SELECT Button Airflow Control (AFC) LIST Button 7 Segment Display Low Voltage thermostat harness J8 - 24 VAC Input External Switch Humidifier J10 - EHC/HHC BM LED STATUS COMM LED J7 - Motor J9 - Display Assembly Unit Test STATUS UNIT...
  • Page 20 TAM9 LED Codes AFC BM (Bit Master) LED (GREEN) DESCRIPTION LED LOCATIONS ON in Communicating Mode Normal Operation Off in 24 Volt Mode AFC COMM LED (AMBER) DESCRIPTION Number of communicating devices Device Count in Communicating Mode BM LED STATUS Off in 24 Volt Mode COMM LED AFC STATUS LED (GREEN)
  • Page 21 T T A A M M 9 9 L L E E D D C C o o d d e e s s EVC STATUS LED (GREEN) DESCRIPTION (Non Heat Pump Systems) Flash Cool mode selected / No active call Active call for 1st stage cooling STATUS Active call for 2nd stage cooling...
  • Page 22 TAM9 7–Segment Display Fault Codes Fault Codes can be read from the 7 segment display on the air handler AFC board. Note: For the TAM9 air handler, all of the fault codes can be read from SELECT Button the CDA. LIST Button 7 Segment Display TAM9-SF-1E-EN...
  • Page 23 TAM9 ALERT CODE ADDENDUM More than one ID unit connected Air handler twinning error 19 Twinning fault TWIN ERR ERR19 ERR 19.0 Information on the communicating bus is not allowed Communica- R & B to thermostat reversed Excessive communication SYS COM Information 3.3 tion busy fault polarity...
  • Page 24 T T A A M M 9 9 A A L L E E R R T T C C O O D D E E A A D D D D E E N N D D U U M M EEV electric motor drive or EEV motor drive or motor Indoor EEV...

  • Page 25: Sensor Locations

    Sensor Locations Evaporator Temperature Sensor (ET) - located on 3/8” Aluminum distributor tube (orange wires) Gas Temperature Sensor (GT) - located on copper section of manifold (black wires) EEV Stepper Motor TAM9-SF-1E-EN...
  • Page 26 Stepper Motor Tables —For use with Low and High Superheat Troubleshooting Table 1 — For use with FIG 1 Table 2— For use with FIG 2 Common Terminal to Terminal Measurement Common Terminal to Terminal Measurement Gray Orange 46 ohms Brown Blue 46 ohms...
  • Page 27 EEV TEST OPTIONS E E l l e e c c t t r r o o n n i i c c E E x x p p a a n n s s i i o o n n V V a a l l v v e e T T e e s s t t O O p p t t i i o o n n 1 1 O O p p e e n n V V a a l l v v e e T T e e s s t t - - Touch OPEN pin to TEST pin.
  • Page 28 EVC THERMAL RESISTANCE AND VOLTAGE TABLE Volts DC at plug J3 Volts DC at plug J3 Volts DC at plug J3 THERMISTOR THERMISTOR THERMISTOR EVAP TEMP (ET) EVAP TEMP (ET) EVAP TEMP (ET) TEMP TEMP TEMP TEMP TEMP TEMP RESISTANCE RESISTANCE RESISTANCE Orange to Orange...
  • Page 29 Display Assembly / Human Interface Display Assembly Viewing Window Push up & down to scroll through setup menu Push center button Push left & right to scroll to make selection through menu options D D i i s s p p l l a a y y A A s s s s e e m m b b l l y y G G e e n n e e r r a a l l N N o o t t e e s s –...
  • Page 30 TAM9 — Technician Menu and Configuration tree Table 1. CDA Home Screen Home Screen Auto scroll SYSTEM STATUS UNIT DATA ↕ UNIT CONTROLS ↕ XXXXXXXXXXXXXX ↔ ↔ ↔ ALERT 1 <Cntrl> UNIT MODEL # ↕ AFC SW BUILD ↕ AFC SW VERSION <Alert short text>...
  • Page 31 T T A A M M 9 9 — — T T e e c c h h n n i i c c i i a a n n M M e e n n u u a a n n d d C C o o n n f f i i g g u u r r a a t t i i o o n n t t r r e e e e Table 2.
  • Page 32 T T A A M M 9 9 — — T T e e c c h h n n i i c c i i a a n n M M e e n n u u a a n n d d C C o o n n f f i i g g u u r r a a t t i i o o n n t t r r e e e e Table 3.
  • Page 33 T T A A M M 9 9 — — T T e e c c h h n n i i c c i i a a n n M M e e n n u u a a n n d d C C o o n n f f i i g g u u r r a a t t i i o o n n t t r r e e e e Table 4.
  • Page 34 T T A A M M 9 9 — — T T e e c c h h n n i i c c i i a a n n M M e e n n u u a a n n d d C C o o n n f f i i g g u u r r a a t t i i o o n n t t r r e e e e Table 5.

  • Page 35: Troubleshooting

    Troubleshooting TAM9-SF-1E-EN...
  • Page 36 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g HIGH SUPERHEAT Superheat above 30F at OD unit Start Here Verify that OD Verify line set is Is subcooling at...
  • Page 37 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g Troubleshooting Low Superheat Perform these steps if Superheat is less than 3°F Perform Sensor STEP 1 Check as per Service...
  • Page 38 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g Troubleshooting Low Superheat - page 2 STEP 4 Replace stepper System has Correct stepper motor and retest for...
  • Page 39 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g Troubleshooting Low Superheat - page 3 STEP 8 Suction pressure Perform Close ValveTest drops...
  • Page 40 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:

Tam9a0b30v31dbTam9a0c36v31dbTam9a0c42v41dbTam9a0c48v41dbTam9a0c60v51db