Rheem 4 Ton R-454B Commercial Packaged Air Conditioner — RACCYB048ADT000AAAA0
The Rheem RACCYB048ADT000AAAA0 is the 460V three-phase build of Rheem's 4-ton Commercial Classic Series package unit, delivering 45,500 BTU/h of AHRI net cooling at 10.6 EER2 / 13.4 SEER2 on R-454B refrigerant. Because it runs on 460V, its rated compressor amperage is roughly half that of the 208/230V version, which lets larger facilities feed several rooftop units from the same service with lighter branch-circuit wiring. It keeps the single-stage scroll compressor, microchannel coils, and convertible downflow or horizontal supply of the RACC line.
Is a 4-Ton Package Unit the Right Size?
At 4 tons, this unit is matched to cooling loads around 45,000 to 48,000 BTU/h, which for many light-commercial buildings works out to roughly 1,600 to 2,400 sq ft. Floor area is only a rough guide, however — occupancy, glazing, and internal heat gain move the real requirement well above or below what the square footage suggests.
Ventilation requirements, kitchen or equipment heat, west-facing glass, ceiling height, and the local summer design temperature all shift the number. A busy restaurant dining room may fully load a 4-ton unit while a low-occupancy office of the same footprint would be over-cooled. A proper commercial load calculation, not a square-foot rule of thumb, is the right way to confirm this capacity is neither undersized nor oversized for humidity control.
Ideal for: Mid-size offices, retail areas, clinics, and classroom wings inside larger facilities, campuses, and industrial buildings wired for 460V three-phase service.
Need more capacity? Step up to the 5-Ton Rheem R-454B 460V 3-Phase Package Unit (RACCYB060ADT000AAAA0) for larger zones that need more cooling capacity.
Recommended applications are general guidelines only. Actual capacity requirements depend on insulation, ventilation, occupancy, solar gain, ceiling height, and local design temperatures. Request free sizing assistance, contact Budget Heating, or call 813-885-7999.
What's Included
| Model Number | RACCYB048ADT000AAAA0 |
|---|---|
| Product Type | Commercial Classic Series Straight-Air (Cooling-Only) Packaged Air Conditioner |
| Nominal Capacity | 4 Tons — 48,000 BTU/h (45,500 BTU/h AHRI net cooling) |
| Rated Efficiency | 10.6 EER2 / 13.4 SEER2 |
| Refrigerant | R-454B (A2L, factory charged — approx. 67 oz) |
| Compressor | Single-stage scroll compressor |
| Nominal Airflow | 1,600 CFM — convertible downflow or horizontal |
| Electrical | 460V, 3-Phase, 60 Hz |
| Minimum Circuit Ampacity | 13 A |
| Max Overcurrent Protection | 15 A |
| Manufacturer Warranty | 5-Year Compressor / 1-Year Parts (Commercial) |
The RACCYB048ADT000AAAA0 ships as one factory-assembled, wired, and run-tested cabinet, so there is no field refrigerant line set to braze — it arrives charged with R-454B and ready to set, connect power and ducting, and commission. For curbed rooftop installs, pair it with the matching 3–6 Ton Rheem 14 in. roof curb (RXKG-DCC14). Browse more Rheem equipment or the full packaged air conditioner lineup for related sizes and voltages.
Unit Features
Cooling, Compressor & Coils
- Single-stage scroll compressor factory-charged with low-GWP R-454B refrigerant
- MicroChannel outdoor condenser coil and MicroChannel indoor evaporator coil for efficient heat transfer and reduced refrigerant charge
- TXV (thermostatic expansion valve) refrigerant metering with a solid-core liquid-line filter drier
- Factory-installed A2L refrigerant leak detection system with automatic mitigation
- Rated 10.6 EER2 / 13.4 SEER2 at 48,000 BTU/h nominal (45,500 BTU/h AHRI net) cooling
- High- and low-pressure protection with built-in Smart Logic and internal compressor overload
- Cooling operation to 125°F ambient; ships wired and run-tested
- 18-gauge galvanized cabinet with forkable base rails and gasket-protected panels
Airflow, Controls & Serviceability
- Convertible airflow — vertical downflow or horizontal side-flow — delivering 1,600 nominal CFM
- Direct-drive ECM indoor blower with multiple selectable speed taps
- PlusOne ServiceSmart access: Qwik-Change Flex-Fit filter rack, Qwik-Slide blower assembly, and Qwik-Clean composite drain pan
- PlusOne Diagnostics with dual 7-segment LED display and standard Modbus interface
- Overflow condensate sensor and external lockable gauge ports
- Ships with four disposable 2 x 16 x 16 in. filters; MERV 8 and MERV 13 filters available as field accessories
- 460V, 3-Phase, 60 Hz power: 13 A minimum circuit ampacity, 15 A maximum overcurrent protection, compressor RLA 6.4 A
- Field-installed accessories include economizers, roof curbs, hail guards, disconnects, and low-ambient control
Specifications & Manuals
Product documentation includes RACC 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 and conditions.
Frequently Asked Questions
What size space will the RACCYB048ADT000AAAA0 cool?
It is matched to commercial cooling loads around 48,000 BTU/h (45,500 BTU/h AHRI net), which often lands near roughly 1,600 to 2,400 sq ft of light-commercial space. Because occupancy, ventilation, glazing, and internal heat gain move the real load, confirm the size with a commercial load calculation rather than floor area alone.
Why choose the 460V RACCYB048ADT000AAAA0 over the 208/230V model?
On 460V, 3-Phase, 60 Hz this unit draws about half the amperage of the 208/230V build — a 13 A minimum circuit ampacity and 15 A maximum overcurrent protection, with a compressor RLA of 6.4 A. That eases wiring and breaker sizing where a 460V service feeds several units. If your panel is 208/230V, order the 208/230V three-phase 4-ton version instead.
Is this unit charged with R-454B, and does it have leak detection?
Yes. The RACCYB048ADT000AAAA0 is factory-charged with low-GWP R-454B (an A2L refrigerant) and includes a factory-installed refrigerant leak detection system that triggers a fault and mitigation sequence if a leak is sensed. Refrigerant charge is approximately 67 oz.
Can this package unit be installed downflow and horizontal?
Yes. Airflow is field-convertible between vertical downflow (for roof-curb installations) and horizontal side-flow, so the same unit works on a curbed rooftop opening or a slab with ducted side connections. A matching 14 in. Rheem roof curb (RXKG-DCC14) is available for 3–6 ton units.
Does this unit provide heat?
This is a cooling-only (straight-air) package air conditioner. Electric resistance heater kits are available as field- or factory-installed accessories on the RACC platform; if you need heating built in, a gas/electric or heat-pump package unit is the better starting point.
Does the RACC package unit include a warranty?
Yes. Rheem provides a limited warranty on the RACC series — a 5-year compressor and 1-year parts limited warranty for commercial applications (longer terms may apply to residential applications on 3–5 ton models with registration). See the Rheem Limited Warranty document above for full terms and conditions.
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