American Standard Electric Furnace Manual

The American Standard Electric Furnace is a high-efficiency heating system designed for residential and light commercial applications. Featuring advanced heating elements, multi-speed blower technology, integrated safety controls, and energy-efficient operation. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Heating elements, Blower assembly, Control board, Limit switches, Transformer, Filter rack, Thermostat connections.

Installation Requirements

Unpack and inspect all components. Ensure proper clearances and mounting surface.

1. Location requirements: Minimum 24-inch clearance on service side, 6-inch clearance on other sides.
2. Electrical supply: Dedicated 240V circuit with proper amperage rating.
3. Ductwork: Properly sized and sealed duct system.
4. Thermostat wiring: 18-gauge thermostat wire for 24V control circuit.
5. Grounding: Proper equipment grounding required.

WARNING! Installation must be performed by qualified HVAC technician. Electrical shock hazard exists.

First-Time Setup

Power on furnace; verify proper operation through startup sequence.

1. System check: Verify all electrical connections are secure and tight.
2. Blower operation: Test blower operation at all speed settings.
3. Heating test: Initiate heating cycle and verify element sequencing.
4. Safety checks: Confirm limit switches and safety controls function properly.
5. Airflow verification: Check static pressure and airflow measurements.

CAUTION! Do not bypass safety devices. Ensure proper ventilation during testing.

Technical Specifications

• Heating Capacity: 15-60 kW (depending on model)
• Voltage: 208/240V single phase
• Maximum Current: 80 amps (60 kW model)
• Blower Motor: Multi-speed ECM or PSC motor
• Airflow: 1200-2000 CFM
• Static Pressure: Up to 0.8 inches water column
• Temperature Rise: 30-70°F
• Filter Size: Standard 16x25x1 inch
• Warranty: 10 years on heat exchanger, 5 years on parts

Controls and Settings

Access control board via front service panel. Control board features diagnostic LED and DIP switch settings.

Thermostat Settings: HEAT/COOL/OFF, FAN AUTO/ON, Temperature setpoints.

Control Board: Diagnostic light codes, Blower speed selection, Heating staging, Time delays. DIP Switches: Heating capacity, Blower speeds, Accessory configuration. Safety Controls: High limit switches, Rollout switches, Pressure switches, Door safety switches.

Electrical Connections

Main power: 240V line voltage connections. Control circuit: 24V thermostat connections.

1. Disconnect power at main breaker before servicing.
2. Verify proper wire sizing per local electrical codes.
3. Connect thermostat wires to R, C, W, G terminals.
4. Ensure proper grounding of all components.
5. Check voltage at main disconnect before powering unit.

Tip: Use torque specifications on terminal blocks for proper connection.

Operating Procedures

Normal operation controlled by thermostat. System features automatic sequencing.

1. Heating cycle: Thermostat calls for heat, blower starts, heating elements energize in sequence.
2. Fan operation: Auto mode runs with heating cycle; ON mode provides continuous airflow.
3. Staging: Multiple heating elements stage on based on heating demand.
4. Shutdown: Thermostat satisfied, heating elements de-energize, blower continues for cool-down.
5. Safety monitoring: Continuous monitoring of temperatures and airflow.

WARNING! Do not operate with access panels removed. Keep combustible materials away from unit.

Maintenance Schedule

Regular maintenance ensures optimal performance and longevity.

Safety Features

Multiple safety systems protect against hazardous conditions.

• High limit switches: Shut off heating elements if temperatures exceed safe limits
• Door safety switches: Disable power when service panels are removed
• Fusible links: Protect against electrical overloads
• Pressure switches: Ensure proper airflow before heating
• Thermal fuses: Additional protection against overheating

CAUTION! Never bypass safety devices. Replace defective safety components immediately.

Regulatory Information

UL listed and complies with ANSI Z21.47/CSA 2.3 standards. Meets Department of Energy efficiency requirements. Copyright © 2025 American Standard; all rights reserved. For technical support, visit www.americanstandard.com or contact 1-800-STATD-8.

Troubleshooting Guide

Reset: Turn power off for 30 seconds to reset control board.

Service: 1-800-STATD-8; www.americanstandard.com