
Rheem Air Conditioner RA19AY 
Rheem® Endeavor™ Line Prestige® Series
The EcoNet® enabled Rheem Endeavor Line Prestige Series RA19AY is ENERGY STAR® certified, offering one of the highest efficiencies available today. So your utility bills go down, while your home stays consistently comfortable.
Innovation You Can Count On
Patented industry-first features and 360+1 design make the Rheem Endeavor RA19AY a smart choice.
Peace-Of-Mind Performance
Relax, you’re covered by one of the best warranties in the industry. 10 Year Parts + 10 Year Conditional Unit Replacement. (registration required).
Energy Savings
Just like a vehicle’s MPG, the higher the SEER2 and EER2 rating (Seasonal Energy Efficiency Ratio / Energy Efficiency Ratio), the higher the efficiency of your air conditioner—allowing for energy savings month after month. Keep in mind, other factors such as system matching, sizing, ductwork and installation also affect overall efficiency. By working with a properly trained contractor, you can be confident that you are choosing the best heating and cooling system for your home’s comfort and your budget.
Maximum Comfort
Inverter driven, variable speed compressor technology features cooling operation between 40% and 100% of capacity (with overdrive capability up to 115% in extreme conditions) to continuously meet your ever-changing cooling needs. You’ll enjoy exact temperature and advanced humidity control that combine to exceed your optimal comfort expectations.
Durable Curb Appeal
Curved louvered panels and rugged corner posts provide excellent protection to internal components, while modern cabinet aesthetics, including the corrosion-resistant composite base pan and powder coat paint system, allow your unit to put its best face forward for years to come.
Quiet Operation
Efficient home comfort shouldn’t be noisy. That’s why our air conditioners are designed with acoustics in mind. Sound-dampening features such as refrigerant tubing design, fan blade approach, composite base pan and innovative compressor and drive technologies ensure that as efficiency goes up, sound levels stay low.
We Thought of Everything…
& Then Some
We evaluate every detail of a product from top to bottom, inside and out and every angle in between. That’s 360+1. And that’s why you can count on this air conditioner to bring you and your family years of efficient and dependable comfort.
TESTED.
TRUSTED.
TOUGH.
From the smallest part to complete comfort systems, we build quality into everything we make so we can be sure it’s tough enough to deliver the ultimate performance you can count on day after day, year after year. That reliability is what makes Rheem different-and better.

Helping You Live Both Comfortably and Sustainably
Many Rheem products have sustainability features, but the RA19AY has earned our Sustainability Standout® seal, indicating it’s among the best of the best. We created the seal to help you more easily find the products that save energy, save money and save the planet.

Among Air Conditioners, This One’s a Star
Earning ENERGY STAR® recognition means products meet strict energy efficiency guidelines set by the U.S. Environmental Protection Agency. ENERGY STAR certified heating and cooling equipment can enhance the comfort of your home while saving energy-which saves money on utility bills and protects our climate by reducing harmful carbon pollution and other greenhouse gases.
The Rheem Endeavor RA19AY operates with the easy-to-use EcoNet Smart Thermostat, which optimizes system performance and provides a new level of protection and precision comfort with features like:
- Communication with latest sensor technology
- Control of your thermostat from anywhere via the EcoNet App3
- Alerts sent directly to your phone or email
EcoNet Mobile App & EcoNet Smart Thermostat
FEATURES AT A GLANCE
Cooling Efficiency: 20 SEER2 / 13 EER2
Refrigerant: R-454B
Nominal Sizes: 2 to 5 Tons
Cooling Capacities: 22.8 to 54 kBTU
EcoNet® Enabled: Yes
Sound Rating: As low as 57 dB
Compressor Type: Inverter Driven, Variable Speed
Condenser Coil Type: 3/8 in.
PlusOnes:
- PlusOne® Diagnostics - Bluetooth technology aids in quick & easy service
- PlusOne Expanded Valve Space - Provides a minimum working area of 27-square in.
- PlusOne Triple Service Access - 15 in. wide industry-leading corner service access, two-fastener removable corner and easily removable individual louver panels
- PlusOne Refrigerant Detection System™ – Integrated, patented design providing system protection and homeowner peace-of-mind with low GWP refrigerant monitoring
Limited Warranty:
- Parts – 10 Years (registration required)
- Conditional Unit Replacement – 10 Years (registration required)
Simplified Install & Service with Bluetooth Technology
Built-in Bluetooth® connectivity makes it faster and easier for your contractor to install and service your new system. This can help lower your costs and help make your home comfortable again—fast.
Designing for Sustainability with Low GWP
For 2025, the Environmental Protection Agency (EPA) has set a global warming potential (GWP) limit of 700 for refrigerant used in heating and cooling systems. This new requirement will result in a 78% lower GWP than previous-generation refrigerants - with only minimal changes to system installation. For us, this is another step toward our ongoing sustainability goal of reducing greenhouse gas emissions, while still delivering an exceptional level of energy-efficient, dependable comfort.
Nearly 100 Years of Innovation
As the only brand bringing innovative air and water solutions to homes and businesses around the world, Rheem continues to deliver advanced comfort, savings and experiences to our customers—just as we’ve done for nearly 100 years.