This AHRI-certified Goodman Dual Fuel System (AHRI Ref. No. 215488350) pairs the GZV6SA4810 4-ton variable-speed R-32 heat pump with the GCVC800805CX 80% AFUE two-stage gas furnace and the CAPEA4830D3 upflow/downflow evaporator coil with full communicating capability between the outdoor unit, indoor coil, and furnace. Rated at 17.0 SEER2 and 8.2 HSPF2, this system delivers efficient year-round comfort with automatic switchover between electric heat pump and gas furnace operation based on outdoor temperature conditions.
The outdoor unit is ENERGY STAR® Most Efficient certified (Cold Climate) and uses R-32 refrigerant with a GWP of 675 — approximately 68% lower than R-410A. The system is AHRI Certified and ETL Listed.
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
- Outdoor Heat Pump: GZV6SA4810 — 4-ton variable-speed R-32 side-discharge heat pump with 45,500 BTU/h cooling and 45,500 BTU/h heating capacity (47°F). Features EEV metering, variable-speed swing compressor, and digitally commutated fan motor with Quiet Mode (as low as 45 dBA).
- Evaporator Coil: CAPEA4830D3 — cased upflow/downflow evaporator coil with factory-installed EEV. All-aluminum coil optimized for R-32 refrigerant with built-in R-32 sensor. 24½"W × 21"D × 30"H, 70 lbs shipping weight.
- Gas Furnace: GCVC800805CX — 80,000 BTU/h input (64,000 BTU/h output), 80% AFUE, downflow/horizontal two-stage gas furnace with variable-speed ecm blower motor. Low NOx rated. 21"W × 28"D × 33⅜"H, 125 lbs shipping weight.
Pro-Installer Tip
The Technical Friction: On 80% AFUE dual fuel retrofits, the existing metal B-vent flue from the prior furnace often needs resizing to match the new unit's 4" vent diameter — and attic penetrations may not align.
The Long-Term Prevention: After making the vent connection, verify the draft with a manometer under worst-case conditions (blower door at 50 Pa). A marginal draft reading now will turn into a condensation-induced vent failure within 12–18 months, triggering pressure switch lockouts mid-heating season.
The Expert Validation: Use a digital manometer (Fieldpiece SDMN6 or equivalent) to confirm negative draft of at least -0.02" W.C. at the draft hood.
The Professional Standard: Per NFPA 54/ANSI Z223.1, Category I furnace venting must maintain negative pressure throughout the vent system. Many jurisdictions also require CO detection within 15 feet of the furnace.
Key Benefits
- Dual Fuel Efficiency: Automatic switchover between heat pump and gas furnace operation based on outdoor temperature maximizes operating economy — using electric heat pump operation when conditions are mild and switching to gas when temperatures drop below the thermal balance point.
- High-Efficiency Ratings: 17.0 SEER2, 8.2 HSPF2, and 80% AFUE deliver substantial energy savings versus minimum-efficiency (14.3 SEER2 / 80% AFUE) equipment.
- Low-GWP R-32 Refrigerant: R-32 has a GWP of 675, approximately 68% lower than R-410A (GWP 2,088), reducing direct greenhouse gas impact while also providing improved thermodynamic efficiency and lower refrigerant charge requirements.
- Variable-Speed Comfort: The outdoor heat pump uses a variable-speed swing compressor that modulates capacity from approximately 40% to 100%, reducing temperature swings, lowering humidity, and operating at reduced sound levels during part-load conditions.
- Communicating System Control: Full two-wire communicating integration between outdoor unit, indoor coil, and furnace enables automatic staging, fault diagnostics with six-fault recall, and optimized comfort delivery via the Goodman GTST connected thermostat.
- Cold Climate Capability: The GZV6SA4810 heat pump operates down to -10°F in heating mode, extending heat pump runtime deeper into the heating season before gas furnace backup engages.
Technical Specifications
| System Performance Ratings (AHRI Certified) | |
|---|---|
| AHRI Reference Number | 215488350 |
| SEER2 | 17.0 |
| EER2 | 8.8 |
| HSPF2 | 8.2 |
| Furnace AFUE | 80% |
| Outdoor Unit — GZV6SA4810 | |
| Nominal Capacity | 4 Ton (48,000 BTU/h) |
| Max. Cooling Capacity (95°F) | 45,500 BTU/h |
| Max. Heating Capacity (47°F) | 45,500 BTU/h |
| Max. Heating Capacity (5°F) | 28,000 BTU/h |
| Compressor Type | Variable-Speed Swing |
| Refrigerant / Charge | R-32 / 100 oz. |
| Expansion Device | EEV (Electronic Expansion Valve) |
| Electrical | 208-230V / 1 Phase / 60 Hz |
| MCA / MOCP | 31.8A / 35A |
| Liquid / Suction Line | ⅜" / 1⅛" |
| Dimensions (W × D × H) | 37" × 12⅝" × 39" |
| Equipment / Ship Weight | 168 / 185 lbs |
| Sound (Quiet Mode) | As low as 45 dBA |
| Evaporator Coil — CAPEA4830D3 | |
| Configuration | Upflow/Downflow — Cased |
| Expansion Device | EEV (Electronic Expansion Valve) |
| Coil Material | All-Aluminum |
| Dimensions (W × D × H) | 24½" × 21" × 30" |
| Shipping Weight | 70 lbs |
| Gas Furnace — GCVC800805CX | |
| Configuration | Downflow/Horizontal |
| Input / Output BTU/h | 80,000 / 64,000 |
| AFUE | 80% |
| Gas Valve | Two-Stage |
| Blower Motor | Variable-Speed ECM |
| Vent Type | 4" Metal |
| Electrical | 115 VAC / 1 Phase / 60 Hz |
| Dimensions (W × D × H) | 21" × 28" × 33⅜" |
| Shipping Weight | 125 lbs |
| NOx Rating | Low NOx |
| Note: See 'Resources (System Manuals and Warranty)' Tab above for full specifications. | |
Compliance & Environmental Data
| Category | Details |
|---|---|
| Refrigerant Type | R-32 (Difluoromethane) |
| Refrigerant GWP | 675 (vs. R-410A at 2,088 — 68% reduction) |
| Refrigerant Safety Classification | ASHRAE A2L (Mildly Flammable) |
| EPA Section 608 Requirements | EPA-certified technicians required for refrigerant handling. R-32 is subject to EPA Section 608 venting prohibition and leak repair requirements. |
| Regional Compliance | Meets DOE 2023 regional minimum efficiency standards for all U.S. regions. ENERGY STAR® Most Efficient 2025 (Cold Climate). |
| Federal Tax Credit Eligibility | This system may qualify for the 25C federal tax credit (up to $2,000 for qualifying heat pumps under the Inflation Reduction Act) — consult a tax professional for individual eligibility. |
| AHRI Certification | AHRI Certified — Reference No. 215488350 |
| Safety Listing | ETL Listed |
| Florida Building Code | When properly anchored, the outdoor unit meets 2023 Florida Building Code unit integrity requirements for hurricane-type winds. |
Warranty & Registration
- Outdoor Heat Pump (GZV6SA4810): Unregistered — 5-Year Parts Limited Warranty. Registered (within 60 days of installation at goodmanmfg.com) — 10-Year Parts Limited Warranty and 10-Year Unit Replacement Limited Warranty (compressor failure results in full outdoor unit replacement, one time). Registration extends coverage for as long as the original owner resides in the home, up to 10 years from installation.
- Evaporator Coil (CAPEA4830D3): Unregistered — 5-Year Parts Limited Warranty. Registered (within 60 days of installation at goodmanmfg.com) — 10-Year Parts Limited Warranty for as long as the original registered owner resides in the home.
- Gas Furnace (GCVC800805CX): Unregistered — 20-Year Heat Exchanger Limited Warranty and 5-Year Parts Limited Warranty. Registered (within 60 days of installation at goodmanmfg.com) — Heat exchanger warranty provides unit replacement for the first 10 years (if heat exchanger fails, entire furnace is replaced once); replacement heat exchanger coverage for years 11–20; and a one-time replacement heat exchanger for years 21–99. All other parts are covered for 10 years when registered. Registration extends coverage for as long as the original owner resides in the home.
Online registration is not required in California, Florida, or Québec. Warranty duration may vary in Texas and Florida. All warranties cover parts only — labor, freight, and refrigerant are not included. Units must be installed by a licensed contractor in accordance with applicable codes. Complete warranty details are available at goodmanmfg.com.
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