This AHRI-certified Dual Fuel System pairs the Goodman GZV6SA2410 2-ton, 18.0 SEER2, 8.5 HSPF2 variable-speed inverter-driven R-32 heat pump with the GCVC960403BN 96% AFUE two-stage gas furnace (40,000 BTU/h input) and the CAPEA2418C3 cased upflow/downflow evaporator coil with factory-installed EEV. This combination delivers efficient all-season comfort: variable-speed heat pump operation for moderate temperatures and automatic switchover to gas furnace heating when outdoor conditions drop below the balance point. AHRI Certified Reference Number: 215488311.
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
- GZV6SA2410 — Goodman 2-Ton, 18.0 SEER2 / 8.5 HSPF2, Variable-Speed Inverter-Driven R-32 Side Discharge Heat Pump Condenser (23,200 BTU/h cooling, 23,200 BTU/h heating at 47°F)
- GCVC960403BN — Goodman 40,000 BTU/h Input (38,000 BTU/h Output), 96% AFUE, Two-Stage, Variable-Speed ECM, Downflow/Horizontal Gas Furnace
- CAPEA2418C3 — Goodman 2 Ton Nominal, Cased Upflow/Downflow, All-Aluminum Evaporator Coil with Factory-Installed EEV (21" W × 21" D × 18" H)
Pro-Installer Tip
The Technical Friction: Downflow 96% AFUE condensing furnaces require careful condensate routing. In a dual fuel configuration with the GZV6SA2410 heat pump, the heat pump's defrost cycle generates additional condensate that must be managed alongside the furnace condensate drain. Cabinet clearance for the 21" wide coil on a downflow installation demands precise alignment to prevent air leaks at the coil-to-furnace junction.
The Long-Term Prevention: Apply mastic sealant (not tape) at all coil-to-furnace seams and verify the condensate trap depth is at least 2× the maximum negative static pressure. This prevents nuisance water sensor trips and secondary drain pan overflow during peak cooling 6–12 months post-install.
The Expert Validation: Use a digital manometer to verify total external static pressure stays within the furnace's rated range. Document subcooling at 12±1°F using a calibrated digital refrigerant gauge set per the GZV6S specification sheet.
The Professional Standard: R-32 systems require EPA Section 608 certification for handling. Verify all brazing is performed with nitrogen purge per ACCA/ANSI Quality Installation Standard 5 (QI 5). Confirm local mechanical code compliance for condensing furnace venting with PVC/CPVC, which varies by jurisdiction.
Key Benefits
- High-Efficiency Performance: 18.0 SEER2 and 8.5 HSPF2 ratings with variable-speed inverter technology reduce energy consumption compared to single-speed systems by running at lower speeds for longer periods, matching output to actual demand.
- R-32 Refrigerant: GWP of 675 — approximately 68% lower than R-410A (GWP 2,088). Supports 2025 EPA AIM Act HFC phase-down requirements and reduces direct greenhouse gas emission potential.
- Variable-Speed Operation: The swing compressor adjusts speed continuously rather than cycling on/off, providing tighter temperature control (±0.5°F vs. ±2°F for single-stage), reduced humidity, and lower sound levels (as low as 45 dBA in Quiet Mode).
- Dual Fuel Flexibility: Automatically switches between heat pump and 40,000 BTU/h gas furnace based on outdoor temperature, optimizing operating cost by using the most efficient heat source for current conditions.
- Condensing Furnace Efficiency: 96% AFUE captures latent heat from flue gases via a secondary heat exchanger, extracting more usable heat per therm of gas consumed.
- Communicating System: EEV-equipped indoor components work with the outdoor unit's control board to optimize refrigerant flow and system performance. Compatible with Goodman GTST connected thermostat for advanced diagnostics.
- Cold Climate Capable: ENERGY STAR Most Efficient 2025 (Cold Climate) certified. Heat pump operates down to -10°F ambient, delivering 14,200 BTU/h at 5°F for reliable heating in harsh conditions.
Technical Specifications
| Specification | Value |
|---|---|
| AHRI Certificate Number | 215488311 |
| System Type | Dual Fuel System |
| Nominal Capacity | 2 Ton |
| SEER2 | 18.0 |
| EER2 | 10.2 |
| HSPF2 | 8.5 |
| Refrigerant | R-32 |
| Cooling Capacity (95°F) | 23,200 BTU/h |
| Heating Capacity (47°F) | 23,200 BTU/h |
| Heating Capacity (5°F) | 14,200 BTU/h |
| Furnace Input | 40,000 BTU/h |
| Furnace Output | 38,400 BTU/h |
| Furnace AFUE | 96% |
| Gas Valve | Two-Stage |
| Outdoor Unit Dimensions (W×D×H) | 36⅝" × 13¾" × 27⅜" |
| Outdoor Unit Weight | 122 lbs |
| Evaporator Coil Dimensions (W×D×H) | 21" × 21" × 18" |
| Evaporator Coil Weight | 45 lbs (shipping) |
| Expansion Device | EEV (Electronic Expansion Valve) |
| Compressor Type | Variable-Speed Swing |
| Outdoor Unit Voltage | 208-230V / 1 Phase / 60 Hz |
| Min. Circuit Ampacity (Outdoor) | 16.8A |
| Max Overcurrent Protection (Outdoor) | 20A |
| Liquid Line Size | ⅜" |
| Suction Line Size | ¾" |
| Factory Charge | 74 oz |
| Sound Level (Quiet Mode) | As low as 45 dBA |
| Note: See 'Resources (System Manuals and Warranty)' Tab above for full specifications. | |
Compliance & Environmental Data
| Item | Detail |
|---|---|
| Refrigerant Type | R-32 (Difluoromethane) |
| Global Warming Potential (GWP) | 675 (~68% lower than R-410A) |
| EPA 608 Certification Required | Yes — Section 608 certification required for purchase, handling, and service of R-32 refrigerant |
| AHRI Certified | Yes — AHRI Certificate #215488311 |
| ETL Listed | Yes |
| ENERGY STAR® | ENERGY STAR Most Efficient 2025 (Cold Climate Heat Pump) |
| Regional Compliance | Meets DOE 2023 regional efficiency standards for all U.S. regions |
| Federal Tax Credit Eligibility | System may qualify for federal tax credits under IRS Section 25C for qualifying high-efficiency HVAC equipment — verify current thresholds and requirements with a qualified tax professional |
Warranty & Registration
Each component in this system carries its own manufacturer warranty from Daikin Comfort Technologies. Online registration within 60 days of installation is strongly recommended to obtain extended coverage.
- Outdoor Unit (GZV6SA2410): Unregistered: 5-Year Parts Limited Warranty. Registered (within 60 days): 10-Year Parts Limited Warranty; if the compressor fails within 10 years, Daikin will furnish a new equivalent replacement unit (one-time). Register at www.goodmanmfg.com.
- Gas Furnace (GCVC960403BN): Unregistered: 20-Year Heat Exchanger Limited Warranty; 5-Year Parts Limited Warranty. Registered (within 60 days): Lifetime Heat Exchanger Limited Warranty (as long as original owner resides in home); 10-Year Unit Replacement Limited Warranty (for heat exchanger failure within 10 years); 10-Year Parts Limited Warranty. Register at www.goodmanmfg.com.
- Evaporator Coil (CAPEA2418C3): Unregistered: 5-Year Parts Limited Warranty. Registered (within 60 days): 10-Year Parts Limited Warranty. Register at www.goodmanmfg.com.
Warranty coverage applies to owner-occupied residences. Online registration is not required in California, Florida, or Québec. Duration of coverage in Texas and Florida may differ. Refer to individual component warranty documents for complete terms, limitations, and exclusions.
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