3 Ton 80% Gas Furnace, 2-Stage Variable Speed ,Upflow/Horizontal, 90000 BTU

Armstrong Air A80US2V090B12 – 88,000 BTU Two-Stage 80% AFUE Gas Furnace with Variable Speed Blower

The Armstrong Air A80US2V090B12 is a high-efficiency gas furnace engineered for consistent heating and improved comfort control. With an 80% AFUE rating, this unit delivers reliable performance while optimizing fuel usage. The two-stage gas valve and variable speed ECM blower motor enhance airflow precision and indoor climate stability, making this model suitable for both retrofit and new construction projects requiring an upflow or horizontal configuration.

Core Features

• Two-Stage Gas Valve: Operates at a lower capacity during mild conditions, switching to full capacity when demand increases—reducing energy waste and temperature swings.
• Variable Speed ECM Blower: Enhances airflow control and supports improved humidity management and quiet operation.
• Dual-Fuel Capable: Can be integrated with a compatible electric heat pump for increased efficiency in mild climates.
• Comfort Sync® Thermostat Support: Enables advanced system diagnostics and remote access when connected to a compatible communicating control.
• Quiet Combustion™ Technology: Reduces burner operating noise through precisely tuned components and internal baffling.
• Cabinet Width: 17.5 inches – ideal for installations with limited space.

Technical Specifications

• Model: A80US2V090B12
• Input: 88,000 BTU/hr
• AFUE: 80%
• Configuration: Upflow / Horizontal
• Voltage: 120V / 1 Phase / 60 Hz
• Blower Motor: Variable Speed ECM
• Cabinet Width: 17.5 inches

Installation Guidance

This furnace is factory-configured for upflow or horizontal installations and may require minor field adjustments depending on site conditions. Due to the complexity of staging control, blower programming, and gas line setup, installation by a licensed HVAC contractor is strongly recommended to ensure proper function and code compliance.

Professional Application

For HVAC Contractors: The A80US2V is well-suited for residential applications where zoning or staging is needed to increase efficiency and client comfort. The communicating-ready control board and dual-fuel compatibility offer advanced design flexibility.

For Advanced Installers: Ensure all staging controls are correctly configured and paired equipment is compatible. Unit startup and airflow tuning may be required to match connected coil and duct system capacity.