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Service Facts
Air Handler — Convertible
B B l l a a c c k k E E p p o o x x y y C C o o i i l l s s
TAM7A0A24H21EA
TAM7A0B30H21EA
TAM7A0C36H31EA
TAM7A0C42H31EA
TAM7A0C48H41EA
TAM7B0C60H51EA
S S t t a a n n d d a a r r d d C C o o i i l l s s
TAM7A0A24H21SD
TAM7A0B30H21SD
TAM7A0C36H31SD
TAM7A0C42H31SD
TAM7A0C48H41SD
TAM7B0C60H51SC
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 2014
Scan or click to view
TAM7 Trouble Shooting
Video Library
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
TAM7-SF-2E-EN
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 BAYEV or BAYW series heaters ONLY
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Summary of Contents for Ingersoll-Rand TAM7A0A24H21EA
- Page 1 Service Facts Air Handler — Convertible B B l l a a c c k k E E p p o o x x y y C C o o i i l l s s TAM7A0A24H21EA TAM7A0B30H21EA TAM7A0C36H31EA TAM7A0C42H31EA...
- 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.
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Page 3: Product Specifications
Product Specifications TAM7A0A24H21SD TAM7A0B30H21SD TAM7A0C36H31SD MODEL TAM7A0A24H21EA TAM7A0B30H21EA TAM7A0C36H31EA 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. 3 - 14... - 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 TAM7A0C42H31SD TAM7A0C48H41SD TAM7B0C60H51SC...
- Page 5 Wiring — D805038P01Rev00 TAM7-SF-2E-EN...
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Page 6: Tam7 Sequence Of Operation
TAM7 Sequence of Operation Abbreviations 3. R-G contacts close on comfort control sending 24VAC to the G terminal of the AFC. • AFC = Airflow Control 4. The AFC micro-processor sends a command to the • EVC = Expansion Valve Control serial communicating blower motor to run at 100%. - Page 7 T T A A M M 7 7 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 O O D D T T w w o o S S t t a a g g e e ( ( c c o o o o l l i i n n g g m m o o d d e e ) ) N N o o t t e e : : The EHC has "lead-lag"...
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Page 8: Unit Test Mode
Unit Test Mode Unit Test Mode will exit if any demand is given to the unit. To enter Unit Test Mode: Set System Switch on comfort control to Off. Cycle power to the unit, wait 5 seconds. Within thirty seconds, press and hold the Unit Test Button for 1–2 seconds. -
Page 9: Control Layout
Control Layout S1 Dip Switch S2 Dip Switch Airflow Control (AFC) OUTDOOR TRANE U.S. INC. PART NO. LABEL Capacity (Tons) AC (System) 2 (Stages) 2 (Compressor) Wire Ties INDOOR R NET 1 BAR CODE CFM/Ton R NET 2 Cool Off Delay Torque +12V +12V... -
Page 10: Dip Switches
Co o l Off De la y INDOOR MODEL S1–1 S1–2 OD MULTIPLIER To rq u e TAM7A0A24H21SD TAM7A0A24H21EA +12V Airflo w Co n tro l (AFC) TAM7A0B30H21SD • Set the S1–4 dip switch for the number of stages on TAM7A0B30H21EA the outdoor unit. - Page 11 AC (S ys te m) CFM/TON CFM/TON 2 (S ta g e s ) 2 (Co mp re s s o r) TAM7A0A24H21SD TAM7A0A24H21EA INDOOR R NET 1 R NET 2 CFM/To n TAM7A0B30H21SD Co o l Off De la y...
- Page 12 TAM7-SF-2E-EN...
- Page 13 TAM7-SF-2E-EN...
- Page 14 TAM7-SF-2E-EN...
- Page 15 TAM7-SF-2E-EN...
- Page 16 TAM7-SF-2E-EN...
- Page 17 TAM7-SF-2E-EN...
- Page 18 HEATER ATTRIBUTE DATA TAM7A0A24H21SD, TAM7A0A24H21EA 240 Volt 208 Volt No. of Minimum Minimum Heater Maximum Maximum Capacity Capacity Heater Model No. Heater Amps Circuits Circuit Circuit Amps per Overload Overload per Circuit BTUH BTUH Ampacity Ampacity Circuit Protection Protection No Heater 3.0 **...
- Page 19 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 TAM7A0C36H31SD, TAM7A0C36H31EA 240 Volt 208 Volt Minimum...
- Page 20 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 TAM7A0C48H41SD , TAM7A0C48H41EA 240 Volt 208 Volt No.
- Page 21 1. Variable Speed outdoor units must be charged per the outdoor unit instructions. 2. All other matches must be charged per the nameplate charging instructions. MODEL DIM “ A “ TAM7A0A24H21SD DISTANCE FROM BELLY BAND TAM7A0A24H21EA 2–3/8 TAM8C0A24V21CB TO SHAFT FACE OF MOTOR FOR TAM8C0A24V21EA TAM7A0B30H21SD...
- Page 22 Air Handler Control Panel — LED TAM7-SF-2E-EN...
- Page 23 TAM7 LED Codes Each TAM7 Control Board has three LEDs that provide visual feedback on the current operating state of the unit. The Green LED displays current system status, the Blue LED reports on system communications and the Red LED reports on current and historical faults. Click or Scan to see a video on reading the TAM7 Control Board LEDs AFC STATUS LED (GREEN)
- Page 24 T T A A M M 7 7 L L E E D D C C o o d d e e s s EVC STATUS LED (GREEN) FAULT FAULT (Non-Heat Pump Systems) R100 Flash Cool mode selected / No active call Active call for 1st stage cooling Active call for 2nd stage cooling STATUS...
- Page 25 T T A A M M 7 7 L L E E D D C C o o d d e e s s EHC STATUS LED (GREEN) DESCRIPTION 1 heater relay energized or stand by 2 heater relays energized 3 heater relays energized 4 heater relays energized 5 heater relays energized...
- Page 26 T T A A M M 7 7 L L E E D D C C o o d d e e s s HHC FAULT LED (RED) DESCRIPTION No Fault Internal communication error Water temp is at 38F or lower Water temp sensor is shorted Water temp sensor is open Configuration error...
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Page 27: Sensor Locations
Sensor Locations Eva p o ra to r Te m p e ra tu re Se n s o r (ET) - loca te d o n 3/8” Alu m in u m distribut or tu b e (o ra n g e w ire s ) Ga s Te m p e ra tu re Se n s o r (GT) - loca te d o n co p p e r... - Page 28 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 29 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 30 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...
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Page 31: Troubleshooting
Troubleshooting Click or Scan to see a video on Performing a Sensor Check TAM7-SF-2E-EN... - Page 32 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 S UPERHEAT u p e rh e a t a b o ve 30F a t OD u n it S ta rt He re Is su b co o lin g a t Ve rify th a t OD...
- Page 33 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 Tro u b le s h o o t in g Low S u p e rh e a t Pe rfo rm t h e s e s te p s if S u p e rh e a t is le s s t h a n 3°F Pe rfo rm Se n s o r STEP 1...
- Page 34 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 Tro u b le s h o o t in g Low S u p e rh e a t - p a ge 2 STEP 4 Re p la ce s te p p e r Sys te m h a s...
- Page 35 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 Tro u b le s h o o t in g Low S u p e rh e a t - p a ge 3 STEP 8 Pe rfo rm Clo s e S u ctio n p re s s u re...
- Page 36 N N o o t t e e s s The manufacturer optimizes the performance of homes and buildings around the world. A business of Ingersoll Rand, the leader in creating and sustaining safe, comfortable and energy efficient environments, the manufacturer offers a broad portfolio of advanced controls and HVAC systems, comprehensive building services, and parts.
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