American Standard CNT03076 User Manual

1
Gas Furnace Silicon
Nitride Ignitor Models
Gas Furnace Silicon
Nitride Ignitor Models
• Single and Two Stage Models
• Variable Speed Vent Models
• Variable Speed Blower Motor
• Test Procedures
• Direct Vent
• Single and Two Stage Models
• Variable Speed Vent Models
• Variable Speed Blower Motor
• Test Procedures
• Direct Vent
© 2001 American Standard Inc. All rights reserved.
© 2001 American Standard Inc. All rights reserved.

American Standard CNT03076 Specifications

General

Brand	American Standard
Model	CNT03076
Category	Control Unit
Language	English

Summary

Gas Furnace Silicon Nitride Ignitor Models

IFC Diagnostic Codes

Explains diagnostic codes indicated by the IFC's LED for troubleshooting.

Silicon Nitride Ignitor System

Ignitor Description and Composition

Ignitor Operation and Testing

Explains ignitor function, operation, and testing procedures.

Integrated Furnace Controls (IFC) Details

IFC Model CNT2854 (Superseded)

IFC Model CNT03076

IFC Model CNT03077

IFC Model CNT03078

IFC Model CNT2871

IFC Model CNT02536

Furnace Sequences of Operation

Single Stage Operation Modes

Explains operation for single-stage furnaces.

Two Stage Operation Modes

Explains operation for two-stage furnaces.

Variable Speed Operation Modes

Explains operation for variable speed furnaces.

V/S Vent & Blower Motor Sequence

Explains operation of V/S vent and blower motors.

Troubleshooting and Maintenance

Self Diagnostic Features

System fault monitoring and reporting capabilities.

Ignition Control Flash Codes

Interpreting ignition system error codes.

Variable Speed Vent Motor Diagnostics

Troubleshooting methods for V/S motors.

ECM™ 2 Motor Quick Check

Manifold & Pressure Switch Settings

Direct Vent System Checks