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Goodman 2.5 Ton 17.5 SEER2 R-32 Dual Fuel System [GZV6SA3010 + GDVM970803BN + CHPEA3026B3] 26" Width Cased Horizontal Coil, 80,000 BTU Downflow/Horizontal Modulating Variable-Speed ECM Natural Gas Furnace

SKU: GM-GZV6SA3010-GDVM970803BN-CHPEA3026B3-215488200
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Goodman 2.5 Ton Dual Fuel System

This AHRI-certified dual fuel system (Certificate #215488200) pairs the Goodman GZV6SA3010 2.5 Ton variable-speed heat pump with the GDVM970803BN 97% AFUE gas furnace and CHPEA3026B3 cased evaporator coil. Rated at 17.5 SEER2 and 8.5 HSPF2 for the heat pump mode, the system uses R-32 refrigerant (GWP 675) and automatically transitions between electric heat pump and gas furnace operation based on outdoor temperature. This configuration is designed for year-round comfort with optimized energy costs in regions with variable climates.

Note: If you would like to review the manufacturer Product Specifications, Warranty, Brochure, etc., for this system, please refer to the 'Resources (System Manuals and Warranty)' Tab above on this page.

System Components

  • GZV6SA3010 — 2.5 Ton Variable-Speed Heat Pump Condenser with R-32 refrigerant, Variable-Speed Swing compressor, and EEV (Electronic Expansion Valve).
  • GDVM970803BN — 80,000 BTU 97% AFUE Downflow/Horizontal gas furnace with Modulating gas valve, Variable-Speed ECM blower motor, and Natural Gas emissions.
  • CHPEA3026B3 — Cased Horizontal evaporator coil with all-aluminum construction and EEV (Electronic Expansion Valve). Cabinet dimensions: 26" W × 21" D × 17½" H.

Pro-Installer Tip

Technical Friction: Dual fuel systems with the GDVM970803BN (Downflow/Horizontal configuration, 17½" cabinet) require careful consideration of the flue gas routing and evaporator coil clearances. The CHPEA3026B3 (26" W × 17½" H) must sit flush atop the furnace plenum, and any mismatch in cabinet widths between the coil and furnace creates air bypass that degrades both cooling performance and dehumidification.

Long-Term Prevention: After brazing the R-32 line set, pull the system down to 300 microns and hold a standing vacuum for 20 minutes minimum. R-32 is less forgiving of moisture contamination than R-410A. A proper vacuum prevents acid formation that leads to compressor valve failure and nuisance lockouts 8–12 months post-install.

Expert Validation: Use a digital micron gauge (not an analog compound gauge) to verify evacuation. Confirm modulating gas valve manifold pressure with a digital manometer: 3.5″ WC for natural gas. Verify combustion air opening sizing per the furnace’s installation manual and local code requirements.

Professional Standard: This R-32 system requires EPA Section 608 certification for refrigerant handling. In jurisdictions requiring Low NOx or Ultra Low NOx compliance (e.g., SCAQMD Rule 1111 in Southern California), verify the furnace’s Natural Gas rating meets local district requirements before installation. Pull all applicable mechanical permits and ensure the gas line is sized for the 80,000 BTU input rating.

Key Benefits

  • 17.5 SEER2 / 8.5 HSPF2 Efficiency: The variable-speed heat pump delivers high-efficiency cooling and heating in moderate climates, while the 97% AFUE gas furnace provides reliable supplemental heat when temperatures drop below the heat pump’s economic balance point.
  • R-32 Low-GWP Refrigerant: R-32 has a Global Warming Potential of 675 — 68% lower than R-410A (GWP 2,088) — meeting current EPA AIM Act phase-down requirements while maintaining strong thermodynamic performance.
  • Variable-Speed Operation: The Variable-Speed Swing compressor modulates output to match the actual load, reducing temperature swings, improving humidity control, and lowering operating sound levels during part-load conditions.
  • All-Aluminum Evaporator Coil: The CHPEA3026B3 uses an all-aluminum coil construction that resists galvanic corrosion — eliminating the copper-aluminum interface that causes formicary corrosion and premature coil failure in high-humidity environments.
  • Dual Fuel Economy: The system automatically selects the most cost-effective heat source (electric heat pump or gas furnace) based on outdoor conditions, which can reduce annual heating costs by 30–50% compared to single-fuel systems in regions with both moderate and extreme winter temperatures.
  • EEV Precision: Both the outdoor unit and evaporator coil feature Electronic Expansion Valves (EEV) that adjust superheat in real time, maintaining peak efficiency across a wider range of ambient temperatures than fixed-orifice or TXV systems.

Technical Specifications

Specification Value
System Ratings (AHRI Certificate #215488200)
SEER2 17.5
EER2 10.0
HSPF2 8.5
Cooling Capacity (Rated) 28,400 BTU/h
Heating Capacity @ 47°F 28,800 BTU/h
Heating Capacity @ 17°F 18,000 BTU/h
Furnace AFUE 97%
Furnace Input 80,000 BTU/h
Outdoor Unit — GZV6SA3010
Compressor Variable-Speed Swing
Refrigerant / Factory Charge R-32 / 76 oz
Dimensions (W×D×H) 36⅝" × 13¾" × 27⅜"
Shipping Weight 147 lbs
Electrical 208-230V / 1 Phase / 60 Hz
MCA / MOCP 22.4A / 25A
Line Connections (Liquid / Suction) ⅜" / ⅞"
Evaporator Coil — CHPEA3026B3
Coil Configuration Cased Horizontal
Cabinet Dimensions (W×D×H) 26" × 21" × 17½"
Expansion Device EEV (Electronic Expansion Valve)
Coil Material All-Aluminum
Gas Furnace — GDVM970803BN
Furnace Configuration Downflow/Horizontal
Gas Valve Modulating
Motor Variable-Speed ECM
Cabinet Width 17½"
NOx Emissions Natural Gas
Communicating No
Note: See 'Resources (System Manuals and Warranty)' Tab above for full specifications.

Compliance & Environmental Data

Category Details
Refrigerant Type R-32 (Difluoromethane)
Global Warming Potential (GWP) 675 (68% lower than R-410A)
ASHRAE Safety Classification A2L (Lower Flammability)
EPA Section 608 Certification required for handling R-32 refrigerant
AHRI Certified Yes — Certificate #215488200
ENERGY STAR® Certified Yes
Regional Compliance Meets DOE 2023 minimum efficiency standards for all U.S. regions
Furnace NOx Emissions Natural Gas
Federal Tax Credit Eligibility This system may qualify for federal tax credits under the Inflation Reduction Act (IRA) for high-efficiency HVAC equipment. Consult a qualified tax professional for eligibility based on your specific installation.

Warranty & Registration

Each component in this system carries its own manufacturer warranty from Daikin Comfort Technologies. Registration within 60 days of installation is strongly recommended to obtain the full warranty coverage.

  • Outdoor Heat Pump (GZV6SA3010): Unregistered—5-Year Parts Limited Warranty. Registered (within 60 days at goodmanmfg.com)—10-Year Parts Limited Warranty. If the compressor fails within 10 years on a registered unit, Daikin will furnish a new replacement unit (one-time).
  • Evaporator Coil (CHPEA3026B3): Unregistered—5-Year Parts Limited Warranty. Registered (within 60 days)—10-Year Parts Limited Warranty.
  • Gas Furnace (GDVM970803BN): Unregistered—20-Year Heat Exchanger Limited Warranty plus 5-Year Parts Limited Warranty on all other components. Registered (within 60 days)—Extended Heat Exchanger Limited Warranty (with unit replacement provisions) plus 10-Year Parts Limited Warranty on all other components.

Warranty coverage applies to owner-occupied residences installed within the United States, its territories, or Canada. Units must be installed by a qualified HVAC contractor adhering to all applicable codes. Complete warranty terms available at goodmanmfg.com.