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Trane TAM7A0A24H21SA User Manual

Trane TAM7A0A24H21SA
28 pages
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© 2011 Trane
NOTICE: Since the manufacturer has a policy of continuous product and product data improvement, it reserves the right to change design and specifications without notice.
HyperionFieldReferenceDataTAM7
IMPORTANT --- This document contains a wiring diagram and service information. This is customer property and is to remain with this unit.
Please return to service information pack upon completion of work.
HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICING
WARNING:
For use with BAYEV or BAYW series heaters ONLY
WARNING
!
SAFETY HAZARD! This information is intended for use
by individuals possessing adequate backgrounds of electrical and
mechanical experience. Any attempt to repair a central air condition-
ing product may result in personal injury and/or property damage.
The manufacture or seller cannot be responsible for the interpreta-
tion of this information, nor can it assume any liability in connection
with its use.
PRESSURIZED REFRIGERANT! SYSTEM CONTAINS
OIL AND REFRIGERANT UNDER HIGH PRESSURE. RECOVER
REFRIGERANT TO RELIEVE PRESSURE BEFORE OPENING THE
SYSTEM.
DO NOT USE NON-APPROVED REFRIGERANTS OR REFRIGERANT
SUBSTITUTES OR REFRIGERANT ADDITIVES.
WARNING
!
LIVE ELECTRICAL COMPONENTS! During instal-
lation, testing, servicing, and troubleshooting of this product, it may
be necessary to work with live electrical components. Failure to fol-
low all electrical safety precautions when exposed to live electrical
components could result in death or serious injury.
WARNING
!
Note: This unit is certified to UL 1995.
The interior cabinet wall meets the following:
- 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
Table of Contents
Product Specifications. .................................................................................................... 2
Wiring Diagram. ............................................................................................................... 3
Sequence of Operation. ................................................................................................... 4
Control Layout - Refrigerant Dip Switches....................................................................... 7
Airflow Performance. ...................................................................................................... 10
Heater Attribute Data. .................................................................................................... 16
Control Layout - LEDs. ................................................................................................... 19
EEV Test Procedures. .................................................................................................... 24
EVC Thermal Resistance and Voltage Table. ................................................................ 25
Troubleshooting. ............................................................................................................ 26
* May be "A" or "T"
Air Handler - Convertible
Models: Series 7 Air Handlers 2-5 Ton
*AM7A0A24H21SA, *AM7A0B30H21SA
*AM7A0C36H31SA, *AM7A0C42H31SA
*AM7A0C48H41SA, *AM7A0C60H51SA
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Trane TAM7A0A24H21SA Specifications

General IconGeneral
Model NumberTAM7A0A24H21SA
CategoryAir Handlers
Nominal Cooling Capacity2 tons
Blower MotorVariable Speed
Voltage208/230V
Phase1
Maximum Overcurrent Protection15 A
Airflow Range400-900 CFM

Summary

Wiring Diagram

Sequence of Operation

Control Layout - Refrigerant Dip Switches

Airflow Performance

Control Layout - LEDs

AFC LED Status and Fault Codes

Explains AFC green status and red fault codes, plus Unit LED indications.

EVC LED Status and Fault Codes

Details EVC green status/fault codes and Unit LED indications.

EHC LED Status and Fault Codes

Explains EHC green status/fault codes and Unit LED indications.

HHC LED Status and Fault Codes

Covers HHC fault/status codes and Unit LED indications.

EEV Test Procedures

Troubleshooting Procedures

Sensor Check Procedure

Step-by-step guide to check sensor connections and resistance.

High Superheat Diagnosis

Troubleshooting flowchart for identifying and resolving high superheat conditions.

Low Superheat Diagnosis

Troubleshooting flowchart for identifying and resolving low superheat conditions.

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