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Trane TAM7A0B30H21SA User Manual

Trane TAM7A0B30H21SA
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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 TAM7A0B30H21SA Specifications

General IconGeneral
ModelTAM7A0B30H21SA
TypeAir Handler
Cooling Capacity2.5 Ton
Heating Capacity30, 000 BTU/h
Blower MotorVariable Speed ECM
Nominal Airflow1200 CFM
Motor TypeECM
Voltage208/230 V
Phase1
Maximum External Static Pressure0.8 in. w.c.
Width22 inches

Summary

Safety and Warning Information

Hazardous Voltage and Electrical Safety

Warnings regarding electrical hazards and safe servicing practices.

Pressurized Refrigerant System Warning

Caution about high pressure refrigerant and proper recovery.

General Safety Hazard Notification

Requirement for qualified personnel and manufacturer liability disclaimer.

Wiring Diagram for AM7 Air Handlers

Sequence of Operation

Sequence of Operation Modes

Unit Test Mode and Faults

Entering and Executing Unit Test Mode

Steps to initiate and perform the unit test mode.

Fault Reporting and Clearing Procedures

How the unit reports and clears stored faults.

Airflow Performance Data

EVC Status and Fault Codes

EVC Fault Codes (Red LED)

Interpretation of EVC red LED fault codes.

EEV Test Procedures

EEV Valve Testing (Close and Open)

Procedures for testing the EEV valve's close and open functions.

Sensor Check Procedure

Measuring Sensor Resistance and Voltage

Steps to measure sensor voltage and resistance for diagnostics.

High Superheat Troubleshooting

Diagnosing High Superheat Conditions

Flowchart for diagnosing high superheat issues.

EEV and Coil Performance Check

Checking EEV and coil for proper operation.

Low Superheat Troubleshooting

Diagnosing Low Superheat Conditions

Flowchart for diagnosing low superheat issues.

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