RunTru A952V080CU5SA Gas Furnace 80k BTU 96% AFUE Two-Stage Variable-Speed Upflow/Horizontal

Product Description

The RunTru A952V080CU5SA is a high-efficiency condensing gas furnace delivering 80,000 BTU heating capacity at 96% AFUE. Engineered for upflow/horizontal convertible installations, this two-stage variable-speed furnace maximizes fuel conversion to usable heat while providing enhanced comfort through modulated heating output, reducing operational costs for residential and light commercial applications. The unit features a direct vent sealed combustion system that draws outside air for combustion, enhancing safety and efficiency by isolating the combustion process from indoor air.

This furnace is designed for integration within split-system configurations, commonly paired with a heat pump and indoor coil to create a dual-fuel system that optimizes energy costs by switching between electric heat pump operation and gas heating based on outdoor conditions. The 80,000 BTU capacity suits mid-size homes in moderate to cold climates requiring reliable, consistent warmth with improved temperature control through two-stage operation.

Key Features

• 96% AFUE efficiency rating — qualifies as high-efficiency condensing furnace
• 80,000 BTU input capacity for robust heating performance
• Two-stage gas valve operation for enhanced comfort and efficiency
• Variable-speed blower motor for precise airflow matching and quiet operation
• Direct vent sealed combustion design for enhanced safety and efficiency
• Upflow configuration with horizontal left/right convertible installation

Compatibility

This furnace is designed for system integration with Trane heat pump condensers such as the A4HP4042D1 and indoor coils including the 4MXCC009AC6HCB, as documented in complete system listings. AHRI-certified matches are required for warranty validation and rated performance. Verify specific coil and heat pump combinations through Trane's certified match documentation prior to installation.

Installation Notes

Installation must comply with ANSI Z21.47 standards and all applicable local codes. Proper venting is critical — failure to follow venting instructions may result in carbon monoxide hazards. The unit requires a 120V/1-phase/60Hz power supply. High-velocity filter support base must be installed prior to ductwork attachment in downflow conversions. Maintain clearances around vent terminations and ensure adequate combustion air supply per installation manual specifications.

Technical Specifications

• Input Capacity: 80,000 BTU
• AFUE: 96%
• Configuration: Upflow / Horizontal convertible (left/right)
• Gas Valve: Two-stage
• Blower Motor: Variable-speed
• Combustion System: Direct vent sealed combustion
• Electrical: 120V/1-phase/60Hz

FAQ

Q: Is this a RunTru or Trane branded product?
A: This is a RunTru by Trane product — Trane's budget-tier line offering Trane-engineered reliability at a more accessible price point.

Q: What is the difference between two-stage and single-stage operation?
A: Two-stage furnaces operate at a lower heating output (typically ~70% capacity) during milder conditions, then ramp to full output only when needed. This provides more consistent temperatures, quieter operation, and improved efficiency compared to single-stage units that run at full capacity whenever heating is called for.

Q: Can this furnace be installed in horizontal applications?
A: Yes, this unit is convertible for horizontal left or right airflow applications in addition to standard upflow installation. Proper conversion kits and installation procedures must be followed per the manufacturer's instructions.