Rheem 25 Ton R-454B Commercial Packaged Air Conditioner — RACGYB300ACG000BACA0
The Rheem RACGYB300ACG000BACA0 is the largest unit in the Commercial Renaissance Line Classic Series, delivering 300,000 Btu/h gross cooling and 284,000 Btu/h AHRI net capacity from a single rooftop cabinet. It runs on 208/230V three-phase power, the service already in place in most strip centers, supermarkets, restaurants, houses of worship and older office buildings, which makes it a direct-replacement answer when a 25-ton R-410A rooftop finally gives out. Two scroll compressors on independent circuits give true two-stage cooling, a belt-drive supply fan with a Variable Frequency Drive comes standard, and the unit ships factory-charged with low-GWP R-454B refrigerant in compliance with the 2025 EPA 700-GWP limit.
Is a 25-Ton Package Unit the Right Size?
A 25-ton rooftop is specified by load, not by floor area. At AHRI conditions this unit nets 284,000 Btu/h total with 213,000 Btu/h sensible and 71,000 Btu/h latent capacity at 10,000 nominal CFM — a sensible-heavy split that suits large, open, high-traffic interiors where people, lighting and equipment drive the load rather than humidity alone.
Ventilation air is usually what pushes a building into this size. Dining rooms, fitness floors, sanctuaries, retail sales floors and assembly spaces all carry high occupancy and correspondingly high outside-air requirements, and every cfm of 95°F outdoor air has to be cooled before it reaches the zone. Glazing area, roof insulation, kitchen and process equipment, operating hours and the duct static the unit has to overcome all move the number as well. If the unit being replaced was undersized or oversized for the building as it is used today, match the new equipment to a current load calculation rather than to the old nameplate.
Ideal for: Large retail sales floors, supermarkets, restaurants and banquet rooms, fitness centers, houses of worship, school gymnasiums and cafeterias, and single-zone office or light-industrial space served by 208/230V three-phase power.
Need a smaller cabinet? Step down to the 20 Ton Rheem RACGYB240ACG000BACA0 or the 15 Ton Rheem RACGYB180ACG000BACA0, both on the same 208/230V three-phase service. Browse the full 15 – 25 Ton large chassis straight cool lineup.
Building on 460V service? The identical cabinet is available as the 25 Ton Rheem RACGYB300ADG000BACA0.
Recommended applications are general guidelines only. Actual equipment selection depends on ventilation air, occupancy, glazing, internal loads, duct static pressure and design conditions. Request free sizing assistance, contact Budget Heating, or call 813-885-7999.
What's Included
| Unit Model | RACGYB300ACG000BACA0 — 25 Ton Packaged Air Conditioner |
|---|---|
| Gross Cooling Capacity | 300,000 Btu/h [87.92 kW] |
| AHRI Net Cooling Capacity | 284,000 Btu/h [83.2 kW] — 213,000 Btu/h sensible, 71,000 Btu/h latent |
| Rated Efficiency | 10.0 EER / 13.2 IEER — ASHRAE 90.1-2022 compliant |
| Refrigerant | R-454B, factory charged — 210 oz. circuit 1 / 210 oz. circuit 2 |
| Compressors | Two scroll compressors, two stages, dual independent circuits |
| Electrical | 208/230V, 3 Phase, 60 Hz — 132 A minimum circuit ampacity, 150 A maximum overcurrent protection |
| Supply Air | 10,000 nominal CFM — belt-drive FC centrifugal blower with standard VFD control |
| Airflow Configuration | Field convertible — vertical downflow or horizontal side flow |
| Filters | (8) 2 x 24 x 20 in. disposable filters, furnished with the unit |
| Operating Mode | Cooling only — electric heater kits available separately |
| Net Weight | 2,121 lbs. [962 kg] |
The RACGYB300ACG000BACA0 arrives wired, charged and run tested as a complete rooftop package. Heat is not included — this is a straight cool cabinet, and electric heat is added through the factory- or field-installed RXJJ-G18KWC, RXJJ-G36KWC or RXJJ-G54KWC 208-230V heater kits with single-point wiring. Roof curbs, curb adapters, economizers, fresh air dampers and hail guards are selected as add-ons on this page or from the rooftop curb and adapter curb selection.
Unit Features
Cooling, Coils and Airflow
- Two scroll compressors on independent refrigerant circuits provide two stages of cooling and partial-load capacity
- Patented PlusOne SmartShield interlaced MicroChannel coil design
- Louvered MicroChannel outdoor coil — 46.2 sq. ft. face area, 1 row at 23 FPI
- MicroChannel indoor coil — 1.25 in. depth, 23.8 sq. ft. face area, 1 row at 18 FPI
- TXV refrigerant metering on both circuits with solid-core liquid line filter drier
- Cooling operation to 125°F ambient
- Two 30 in. direct-drive propeller condenser fans moving 19,000 CFM, 1-1/2 HP each
- Belt-drive FC centrifugal supply blower with variable pitch pulleys and quick adjust belt system
- Variable Frequency Drive supply fan control is standard, meeting ASHRAE 90.1-2022 and California Title 24 multi-speed fan requirements
- Field convertible between vertical downflow and horizontal side flow discharge
Construction, Controls and Service
- Factory charged with low-GWP R-454B refrigerant, wired and run tested before shipment
- Factory-installed refrigerant leak detection system
- PlusOne Diagnostics with dual 7-segment LED display for code-compliant fault reporting
- PlusOne ServiceSmart package — Qwik-Slide blower assembly and Qwik-Clean drain pan
- Overflow condensate sensor
- High pressure and low pressure / loss of charge protection with built-in Smart Logic
- Scroll compressors with internal line break overload and high pressure protection
- Insulation encapsulated throughout the entire cabinet
- Forkable base rails and a flexible footprint that supports a variety of roof curbs
- Color-coded and labeled wiring; MERV 8 and MERV 13 filters available as factory or field-installed options
Specifications & Manuals
Product documentation includes full performance and electrical tables, dimensional data, accessory model numbers, installation and startup instructions, and warranty terms to assist with equipment selection, installation and service.
Frequently Asked Questions
What electrical service does the RACGYB300ACG000BACA0 need?
This unit is built for 208/230V, three phase, 60 Hz power with an operating voltage range of 187 to 253 volts. It carries a 132 amp minimum circuit ampacity and a 150 amp maximum overcurrent protection device size, with each of the two compressors rated 40.8 amps RLA and 270 amps LRA. Confirm the available capacity at the panel before ordering, since a 25-ton unit on 208/230V is a substantial load.
Will this 25-ton unit drop onto my existing Rheem roof curb?
The Renaissance Line uses a footprint designed to match the inlet, outlet and electrical connections of the most common industry-standard configurations, which often eliminates the need for a new curb adapter. Rheem lists 14, 18 and 24 inch full-perimeter curbs for all 15 to 25 ton RACG models. Existing curbs still need to be field-verified against the dimensional data in the technical specifications before the old unit comes off the roof, and a curb adapter is available when the opening does not line up.
How much refrigerant does this unit hold, and can R-454B be used in an R-410A system?
The unit ships factory charged with 210 ounces on circuit 1 and 210 ounces on circuit 2 of R-454B. R-454B is not a drop-in replacement for R-410A — it is an A2L mildly flammable refrigerant with its own service procedures, leak detection requirements and equipment. This cabinet includes a factory-installed refrigerant leak detection system, and the installation manual covers the A2L safety requirements that apply.
Why does the listing show both 300,000 and 284,000 BTU?
300,000 Btu/h is the gross cooling capacity, measured before the heat added by the supply fan motor is subtracted. 284,000 Btu/h is the AHRI net capacity, which includes that fan motor heat and is the number to use for load matching and equipment comparison. Net capacity breaks down into 213,000 Btu/h sensible and 71,000 Btu/h latent.
How much does the 25-ton RACG weigh?
Net operating weight is 2,121 lbs. and shipping weight is 2,221 lbs. Forkable base rails are built in for handling and lifting. Roof structure, rigging and crane access should be reviewed against that weight and the unit's dimensional data before the install date is set.
Can electric heat be added to this cooling-only package unit?
Yes. The RACGYB300ACG000BACA0 ships as a straight cool unit with no heat, and 208-230V electric heater kits with single-point wiring are available in 18 kW (RXJJ-G18KWC), 36 kW (RXJJ-G36KWC), 54 kW (RXJJ-G54KWC) and 72 kW (RXJJ-G72KWC). Heater kits change the unit's electrical requirements, so size the feeder and overcurrent protection using the heater kit tables rather than the cooling-only ampacity.
RACGYB 15 to 25 Ton Straight Cool Package Installation ManualRACGYB 15 to 25 Ton Straight Cool Package Technical SpecificationsRheem Residential & Commercial Warranty 
