912sa30060 Furnace Manual

The 912sa30060 is a high-efficiency gas furnace with advanced heating capabilities, electronic ignition system, variable-speed blower motor, multi-speed operation, built-in diagnostics, safety controls, and energy-saving features. Designed for residential use with AFUE rating up to 96%, this furnace includes features such as smart thermostat compatibility, filter monitoring, and quiet operation. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Gas valve assembly, heat exchanger, blower motor, electronic control board, pressure switches, flame sensor, igniter, filter compartment.

Installation

Unpack and inspect contents. Ensure proper location with adequate clearance.

1. Position furnace: Place on stable, level surface with proper clearances.
2. Connect gas supply: Use approved gas piping and fittings; pressure test for leaks.
3. Connect electrical: 120V AC power supply with proper grounding.
4. Connect venting: Install approved PVC vent pipes according to local codes.
5. Connect thermostat: Use standard 5-wire or 8-wire thermostat cable.

WARNING! Installation must be performed by qualified HVAC technician. Gas connections require leak testing. Ensure proper venting to prevent carbon monoxide hazards.

First-Time Setup

Power on furnace; follow startup sequence.

1. Verify gas supply: Ensure gas valve is open and pressure is correct.
2. Check electrical: Confirm proper voltage and grounding.
3. Test operation: Set thermostat to heat mode and raise temperature.
4. Monitor startup: Listen for proper ignition sequence.
5. Check airflow: Verify proper air delivery through registers.
6. Set blower speeds: Adjust dip switches for proper airflow.

CAUTION! Do not bypass safety controls. If furnace fails to start, check error codes and consult troubleshooting section.

Specifications

• Model: 912sa30060
• Fuel Type: Natural Gas
• Input BTU: 60,000 - 120,000 BTU/h
• AFUE Rating: Up to 96%
• Blower Motor: Variable-speed ECM
• Electrical: 120V AC, 60Hz
• Gas Connection: 1/2" NPT
• Venting: 2" PVC
• Operating Temp Range: -30°F to 120°F
• Warranty: 10-year heat exchanger, 5-year parts

Controls and Settings

Access control board via front panel. Diagnostic lights indicate system status.

Control Board: POWER switch, diagnostic LEDs, dip switches for blower speeds, test terminals.

Operating Modes: HEAT, COOL, FAN ONLY. Blower Settings: Continuous fan, auto mode. Temperature Control: Single-stage or two-stage operation. Diagnostic Codes: Flash patterns indicate specific faults. Safety Controls: Limit switches, pressure switches, flame rollout protection.

Connecting Thermostat

Standard 24V thermostat connections: R (power), W (heat), G (fan), Y (cool), C (common).

1. Turn off power to furnace before connecting thermostat.
2. Run thermostat cable from furnace to thermostat location.
3. Connect wires to control board terminals matching thermostat connections.
4. Program thermostat for proper heating operation.
5. Test all functions: Heat, fan, and cooling (if applicable).

Tip: Use color-coded thermostat wire for easy identification. Ensure proper polarity for C wire connection.

Operating Modes

Supports multiple operating modes for efficient heating.

1. Heat Mode: Primary heating operation with variable blower speeds.
2. Fan Mode: Continuous or intermittent blower operation.
3. Standby Mode: System ready but not actively heating.
4. Diagnostic Mode: Error code display and system testing.
5. Test Mode: Manual operation for service and troubleshooting.

WARNING! Do not operate furnace without proper venting and air filters. Monitor for unusual noises or odors during operation.

Maintenance Features

Filter monitoring: LED indicator for filter replacement. Self-diagnostics: Automatic fault detection and error codes. Safety shutdown: Automatic protection for unsafe conditions.

Care & Cleaning

Turn off power before maintenance. Replace filters regularly. Clean burners and heat exchanger annually.

CAUTION! Only qualified technicians should service gas components. Keep area around furnace clear of combustible materials.

Regulatory Information

ANSI Z21.47: Certified for natural gas operation. UL listed for safety. Meets DOE efficiency standards. For support, contact manufacturer technical service or visit website for documentation and parts.

Troubleshooting

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

Service: Contact qualified HVAC technician for all gas and electrical repairs.