American Standard 5000 Furnace Manual

The American Standard 5000 Furnace is a high-efficiency gas furnace with AFUE ratings up to 96%, variable-speed blower motor, two-stage gas valve operation, durable heat exchanger, quiet operation, diagnostic LED system, smart thermostat compatibility, and energy-saving features. Designed for residential heating applications with natural gas or propane capability. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Two-stage gas valve, variable-speed ECM blower motor, aluminized steel heat exchanger, diagnostic LED, pressure switches, flame sensor, igniter.

Installation Requirements

Professional installation recommended. Verify local codes and obtain permits.

1. Location: Install in dry, clean area with adequate clearance and combustion air.
2. Gas Connection: Use approved black iron pipe; pressure test for leaks.
3. Electrical: 120VAC, 60Hz power supply with proper grounding.
4. Venting: PVC pipe system sized per manufacturer specifications.
5. Ductwork: Properly sized and sealed return and supply ducts.
6. Condensate Drain: Install condensate line with proper trap and routing.

WARNING! Gas furnaces produce carbon monoxide; proper venting is critical. Only qualified technicians should install.

First-Time Setup

After installation, perform initial startup procedure.

1. Verify all connections: Gas, electrical, venting, and ductwork.
2. Install air filter: Ensure proper size and orientation.
3. Gas pressure check: Adjust manifold pressure per specifications.
4. Blower speed settings: Set appropriate CFM for heating mode.
5. Thermostat wiring: Connect compatible thermostat per wiring diagram.
6. Test operation: Verify ignition sequence and temperature rise.

CAUTION! Never bypass safety controls. Test carbon monoxide detectors after installation.

Technical Specifications

• Model Series: American Standard 5000
• AFUE: Up to 96%
• Input BTU/h: 40,000 - 120,000 (varies by model)
• Stages: Two-stage gas valve
• Blower Type: Variable-speed ECM
• Motor Speeds: Multiple tap settings for heating/cooling
• Voltage: 120VAC, 60Hz
• Gas Type: Natural gas or propane (conversion kit required)
• Venting: PVC, CPVC, or ABS approved
• Sound Level: As low as 65 dB
• Warranty: Limited lifetime heat exchanger, 10-year parts

Controls and Settings

Integrated control board with diagnostic LED. Access via control panel cover.

Control Board: LED status lights, dip switch settings, terminal connections.

Blower Speeds: Adjust via motor taps for heating and cooling modes. Gas Pressure: Manifold pressure adjustment screw. Limit Controls: Automatic high-temperature cutoff. Pressure Switches: Verify venting and airflow safety. Diagnostic Codes: LED flash patterns indicate system status and faults.

Venting and Ductwork

Direct vent system using PVC pipe. Proper sizing critical for efficiency.

1. Vent Pipe: Use schedule 40 PVC, CPVC, or ABS pipe.
2. Termination: Maintain proper clearances from windows and doors.
3. Slope: Condensate drain line requires 1/4" per foot slope.
4. Duct Sizing: Match to furnace capacity and home requirements.
5. Airflow: Verify 400-450 CFM per ton for proper operation.

Tip: Regular vent inspection prevents blockage and ensures safe operation.

Operation Modes

Two-stage heating with variable blower speeds.

1. First Stage: Low fire operation for mild weather and energy savings.
2. Second Stage: High fire for extreme cold temperatures.
3. Blower Operation: Variable speeds for optimal comfort and efficiency.
4. Ignition Sequence: Hot surface igniter with flame sensor verification.
5. Safety Shutdown: Automatic shutdown if faults detected.
6. Continuous Fan: Optional fan-only operation for air circulation.

WARNING! Never operate with access panels removed. Keep combustible materials away from furnace.

Maintenance Schedule

Annual professional maintenance recommended. Monthly homeowner tasks.

Safety Features

Multiple safety systems protect against hazardous conditions.

• Flame Rollout Switches: Detect improper burner flames
• High Limit Switches: Prevent overheating
• Pressure Switches: Verify proper venting airflow
• Flame Sensor: Confirms burner ignition
• Ignition Control: Safe startup sequence
• Fuse Protection: Electrical circuit protection

CAUTION! Install carbon monoxide detectors on every level of home.

Regulatory Information

UL certified. Meets ANSI Z21.47 standards. CSA design certified. Complies with U.S. Department of Energy efficiency standards. Manufactured to meet or exceed industry safety requirements. For technical support, contact American Standard at 1-800-572-1111 or visit www.americanstandardair.com.

Troubleshooting

Reset: Turn power off for 30 seconds, then restore.

Service: 1-800-572-1111; www.americanstandardair.com