Rheem 4 Ton R-454B Commercial Packaged Air Conditioner — RACCYB048ACT000AAAA0
The Rheem RACCYB048ACT000AAAA0 is a 4-ton Commercial Classic Series packaged air conditioner rated at 45,500 BTU/h AHRI net cooling and 10.6 EER2 / 13.4 SEER2, factory-charged with R-454B and configured for 208/230V three-phase service. A single-stage scroll compressor, all-microchannel coil design, and factory refrigerant leak detection are packed into one weatherized cabinet that converts between downflow and horizontal airflow, giving contractors a drop-in cooling solution for mid-size retail, restaurants, and multi-office suites on common 208/230V commercial power.
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 retail floors, restaurants and cafes, professional office suites, clinics, daycare and classroom buildings, and small assembly spaces on 208/230V three-phase service.
Need more capacity? Step up to the 5-Ton Rheem R-454B 208/230V 3-Phase Package Unit (RACCYB060ACT000AAAA0) 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 | RACCYB048ACT000AAAA0 |
|---|---|
| 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 | 208/230V, 3-Phase, 60 Hz |
| Minimum Circuit Ampacity | 24 A |
| Max Overcurrent Protection | 35 A |
| Manufacturer Warranty | 5-Year Compressor / 1-Year Parts (Commercial) |
The RACCYB048ACT000AAAA0 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
- 208/230V, 3-Phase, 60 Hz power: 24 A minimum circuit ampacity, 35 A maximum overcurrent protection, compressor RLA 12.2 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 RACCYB048ACT000AAAA0 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.
What power does the RACCYB048ACT000AAAA0 require?
This model is wired for 208/230V, 3-Phase, 60 Hz. It needs a minimum circuit ampacity of 24 A and a maximum overcurrent protection device of 35 A, with a compressor RLA of 12.2 A. If your building distributes power at 460V instead, order the 460V three-phase 4-ton RACCYB048ADT version of this unit.
Is this unit charged with R-454B, and does it have leak detection?
Yes. The RACCYB048ACT000AAAA0 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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