3 Ton Gas Furnace, Upflow/Horizontal, Heat Exchanger, Variable Speed, 70,000 BTU

Armstrong Air A97MV High-Efficiency Gas Furnace – 97% AFUE, Two-Stage, Variable Speed

The Armstrong Air A97MV is a premium high-efficiency gas furnace engineered for professional-grade residential heating applications. Featuring a 97% AFUE rating, this model is built to minimize heat loss and fuel consumption while delivering consistent thermal performance. Its variable speed ECM blower and two-stage gas valve support advanced temperature control and improved air circulation across multiple zones or duct configurations.

Core Features

• 97% AFUE: High-efficiency design reduces annual heating costs and meets stringent energy standards for modern HVAC systems.
• Two-Stage Gas Valve: Operates at a lower stage during mild conditions to improve efficiency and comfort, ramping to full capacity as needed.
• Variable Speed Blower Motor: Maintains stable airflow, supports quieter operation, and enhances humidity control.
• Stainless Steel Secondary Heat Exchanger: Extracts additional heat from combustion gases, increasing system efficiency and durability.
• Quiet Combustion™ Technology: Integrated design helps reduce operating noise by stabilizing flame performance and minimizing vibration.

Technical Specifications

• Model: A97MV060B12
• Input: 66,000 BTU/hr
• Output: 64,000 BTU/hr
• AFUE: 97%
• Voltage: 120V / 1 Phase / 60 Hz
• Blower Type: Variable Speed ECM
• Configuration: Upflow / Horizontal

Installation Considerations

The A97MV is suitable for new installations or system upgrades requiring a high-efficiency gas furnace. Due to its advanced staging and airflow components, installation should be performed by a licensed HVAC professional familiar with variable-speed system commissioning and gas-fired appliance code requirements. Proper duct sizing, gas supply verification, and condensate drainage routing are essential for reliable operation.

Application Guidance

For Contractors: The A97MV series supports integration with communicating controls and compatible Armstrong Air outdoor units, streamlining installation and delivering precision temperature control for residential projects. Its compact footprint allows placement in utility rooms or closets while meeting high-efficiency retrofit demands.

For Installers: Ensure all gas and venting components meet code, and confirm line voltage wiring and thermostat compatibility for two-stage and variable-speed operation. Performance can be optimized when paired with Comfort Sync® communicating thermostats.