4 Ton Gas Furnace, Upflow/Horizontal, Heat Exchanger, Variable Speed, 90,000 BTU

Armstrong Air A97MV Gas Furnace – 97% AFUE Modulating System for Precise Heating

The Armstrong Air A97MV is a high-efficiency gas furnace built for advanced performance in residential applications. With a 97% AFUE rating, this fully modulating furnace delivers precise temperature control and superior fuel utilization, making it ideal for demanding cold-weather environments and energy-conscious installations.

Performance Highlights

• AFUE Rating: 97% – Minimizes heat loss and maximizes usable output per fuel dollar.
• Modulating Gas Valve: Adjusts firing rate in small increments to maintain consistent indoor temperatures with minimal fluctuation.
• Variable-Speed ECM Blower Motor: Maintains stable airflow and supports enhanced humidity control and system efficiency.
• Quiet Combustion™ Technology: Combines anti-vibration components and sound-reducing cabinet insulation to lower operational noise.
• Stainless Steel Heat Exchanger: Corrosion-resistant and thermally efficient, engineered for long service life.

Technical Specifications

• Model Number: A97MV
• Input: 88,000 BTU/hr
• Output: 85,000 BTU/hr
• AFUE: 97%
• Airflow: 1600 CFM
• Voltage: 120V AC, 60 Hz
• Configuration: Upflow/Horizontal
• Cabinet Dimensions: 33" H x 21" W

Installation Considerations

The A97MV is designed for professional installation and setup, particularly due to its modulating gas control system and integrated variable-speed motor. Proper configuration ensures optimal staging, airflow balance, and compatibility with high-performance thermostats. A licensed HVAC contractor should verify combustion calibration, condensate routing, and ECM programming at startup.

Contractor Application Notes

This furnace integrates well into premium residential retrofit and new-construction projects. It is compatible with Armstrong Air's Comfort Sync® communicating thermostat for advanced diagnostics and system performance tracking. The compact cabinet footprint and multi-position design offer flexibility for mechanical room constraints or horizontal attic installations.