Rheem 4 Ton R-454B Gas/Electric Package Unit, 75,000 BTU/h Heat — RGECYB048ACT07BAAAA0
The Rheem RGECYB048ACT07BAAAA0 is a 4-ton Commercial Renaissance Classic Series packaged gas/electric unit that combines R-454B air conditioning with two-stage natural gas heat in one factory-assembled rooftop cabinet. Wired for 208/230V 3-phase power, it delivers 45,500 BTU/h AHRI net cooling at 10.6 EER2 / 13.4 SEER2 and pairs it with a 75,000 BTU/h nominal gas furnace (60,750 BTU/h heating output at 81% steady-state efficiency). A single-stage scroll compressor, all-microchannel coils, factory refrigerant leak detection, and a stainless-steel two-stage heat exchanger make this convertible downflow/horizontal unit a complete heating-and-cooling solution for light-commercial buildings that want cooling and light-to-moderate gas heat from a single 208/230V 3-phase rooftop.
Is a 4-Ton / 75,000 BTU Gas Package Unit the Right Size?
This unit matches 45,500 BTU/h of net cooling with a 75,000 BTU/h gas furnace, so it has to be sized for two loads at once. On the cooling side, 4 tons typically suits roughly 1,600 to 2,400 sq ft of light-commercial space; on the heating side, the 60,750 BTU/h output (light-to-moderate heat) should be matched to the building's design heating load and climate.
Cooling load depends on insulation, ventilation, occupancy, glazing, and local design temperatures, while heating load depends on climate, envelope, and ventilation air. The two-stage gas valve runs first stage at about 70% of full fire for quieter, more even heat and better part-load efficiency, with a high-fire temperature rise range of 30–60°F. Size both sides from a commercial load calculation rather than floor area alone so the unit neither short-cycles in cooling nor over- or under-heats the space.
Ideal for: Mid-size retail, restaurants, and professional office suites on 208/230V 3-phase power, in mild-winter climates where lighter gas heat is sufficient.
Comparing options? Compare the 4-ton 208/230V 3-phase model with 125,000 BTU/h gas heat or the 5-ton 208/230V 3-phase gas package unit.
Recommended applications are general guidelines only. Actual cooling and heating requirements depend on insulation, ventilation, occupancy, solar gain, climate, and design temperatures. Request free sizing assistance, contact Budget Heating, or call 813-885-7999.
What's Included
| Model Number | RGECYB048ACT07BAAAA0 |
|---|---|
| Product Type | Commercial Renaissance Classic Series Packaged Gas/Electric Unit |
| Nominal Cooling | 4 Tons — 45,500 BTU/h AHRI net cooling |
| Cooling Efficiency | 10.6 EER2 / 13.4 SEER2 |
| Gas Heating | 75,000 BTU/h nominal input — 60,750 BTU/h output (81% steady-state, two-stage) |
| Heat Exchanger | Stainless steel, two-stage, direct spark ignition |
| Refrigerant | R-454B (A2L, factory charged — approx. 67 oz) |
| Compressor | Single-stage scroll compressor |
| Airflow | Convertible downflow or horizontal |
| Electrical | 208/230V, 3-Phase, 60 Hz |
| Minimum Circuit Ampacity | 24 A |
| Max Overcurrent Protection | 35 A |
| Manufacturer Warranty | 5-Year Compressor / 10-Year Heat Exchanger / 1-Year Parts (Commercial) |
The RGECYB048ACT07BAAAA0 ships as one factory-assembled, wired, and run-tested cabinet with R-454B charged and the gas furnace installed — set it, connect power, gas, and ducting, and commission. Add the Rheem RXRD-01MCDBM3 economizer for free cooling or the RXGJ-FP41 LP conversion kit for propane. Browse more Rheem equipment or the full packaged unit lineup for related sizes and configurations.
Unit Features
Cooling, Compressor & Coils
- Single-stage scroll compressor factory-charged with low-GWP R-454B refrigerant
- MicroChannel outdoor and indoor coils with TXV metering and a solid-core filter drier
- Factory-installed A2L refrigerant leak detection with automatic mitigation
- Rated 10.6 EER2 / 13.4 SEER2 at 45,500 BTU/h AHRI net cooling
- High- and low-pressure protection with Smart Logic and internal compressor overload
- Cooling operation to 125°F ambient; convertible downflow or horizontal airflow
- Corrosion-resistant, gasket-protected cabinet with forkable base rails
Gas Heat, Controls & Serviceability
- Two-stage natural gas heat — 75,000 BTU/h nominal input, 60,750 BTU/h output at 81% steady-state efficiency
- Stainless-steel two-stage heat exchanger with direct spark ignition and first stage at ~70% of full fire
- High-fire temperature rise range 30–60°F; field-convertible to LP with the Rheem LP conversion kit
- Direct-drive constant-torque ECM indoor blower with multiple speed taps
- CoreCommand control with PlusOne diagnostics and dual 7-segment LED display
- Pre-wired for a field- or factory-installed economizer (free cooling)
- 208/230V, 3-Phase, 60 Hz power: 24 A minimum circuit ampacity, 35 A maximum overcurrent protection
- Ships wired and run-tested with a factory sub-base and gasketed duct openings
Specifications & Manuals
Product documentation includes RGEC series technical specifications, installation instructions, and warranty information to assist with equipment selection, installation, and service. This unit carries a Rheem limited warranty; see the warranty document above for full coverage terms.
Frequently Asked Questions
What cooling and heating capacity does the RGECYB048ACT07BAAAA0 provide?
It delivers 45,500 BTU/h AHRI net cooling (10.6 EER2 / 13.4 SEER2) and 60,750 BTU/h of gas heating output from a 75,000 BTU/h nominal, two-stage furnace at 81% steady-state efficiency. Size both the cooling and heating sides from a commercial load calculation.
What power does the RGECYB048ACT07BAAAA0 require?
It is wired for 208/230V, 3-Phase, 60 Hz and needs a 24 A minimum circuit ampacity with a 35 A maximum overcurrent protection device.
Is the furnace two-stage, and can it run on propane?
Yes. The gas furnace is two-stage with a stainless-steel heat exchanger and direct spark ignition; first stage runs at about 70% of full fire for quieter, more even heat. It ships for natural gas and can be field-converted to LP (propane) with the Rheem RXGJ-FP41 LP conversion kit.
Can I add an economizer for free cooling?
Yes. This unit is pre-wired for an economizer. The matching Rheem RXRD-01MCDBM3 downflow economizer with single-enthalpy control brings in outdoor air for free cooling when conditions allow, and installs on 3–6 ton RGECYB units.
Can this unit be installed downflow and horizontal?
Yes. Airflow is field-convertible between vertical downflow (for curbed rooftop openings) and horizontal side-flow, so the same unit works on a curb or a slab with side duct connections.
Why choose the 75,000 BTU/h gas-heat option?
The 75,000 BTU/h furnace provides 60,750 BTU/h of light-to-moderate heating output. Match the gas-heat size to your climate and design heating load; other heat inputs are offered on the RGECYB line for the same tonnage where available.
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