Trane AAM7A0A24H21SA User Manual

© 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

Trane AAM7A0A24H21SA Specifications

General

Model Number	AAM7A0A24H21SA
Category	Air Handlers
Nominal Cooling Capacity	2 Tons
Voltage	208/230V
Phase	1
Maximum Overcurrent Protection	15 Amps
Motor Type	PSC
Width	21 inches
Nominal Heating Capacity	24000 BTU/H
Filter Type	Standard

Summary

Product Specifications

Wiring Diagram

Sequence of Operation

Unit Test and Fault Management

Fault Reporting and Clearing

Airflow Performance Data

Heater Information

Heater Attribute Data

LED Status and Fault Codes

AFC LED Status and Fault Codes

Explains the meaning of AFC Status (Green) and Fault (Red) LEDs.

EVC LED Status and Fault Codes

Explains the meaning of EVC Status (Green) and Fault (Red) LEDs.

EHC LED Status and Fault Codes

Explains the meaning of EHC Status (Green) and Fault (Red) LEDs.

HHC LED Status and Fault Codes

EEV Test Procedures

Sensor Check Procedure

Troubleshooting Superheat Issues

High Superheat Diagnosis

Flowchart for diagnosing and resolving high superheat conditions.

Low Superheat Diagnosis

Flowchart for diagnosing and resolving low superheat conditions.