Rheem Heat Pump RD18AY 
Rheem® Endeavor™ Line Prestige® Series
Compatible with nearly any existing R-454B HVAC system–or as a universal replacement1—the EcoNet® enabled Rheem Endeavor Line Prestige Series RD18AY Side-Discharge Universal Heat Pump excels in all install situations. And as part of our Sound & Space Constraint Solution, it features a compact footprint, making it the perfect solution when space is at a premium.
Innovation You Can Count On
Patented industry-first features and 360+1 design make the Rheem Endeavor RD18AY a smart choice.
Peace-Of-Mind Performance
Relax, you’re covered by one of the best warranties in the industry. 10 Year Conditional Parts when installed as a heat pump only or as part of a system. (registration required).
Universal Install Compatibility
The RD18AY works with nearly any R-454B HVAC system option—including Rheem EcoNet enabled and non–communicating systems, or as a universal replacement with minimal alterations required. Whether your choice is driven by space or sound constraints, electrification initiatives or dual fuel opportunities–this is the comfort solution for you.
Energy Savings
Just like a vehicle’s MPG rating, the higher the SEER2, EER2 and HSPF2 rating (Seasonal Energy Efficiency Ratio / Energy Efficiency Ratio / Heating Seasonal Performance Factor), the higher the efficiency of your heat pump–resulting in more energy savings. Keep in mind, other factors such as system matching, sizing, ductwork and installation also impact the overall efficiency. By working with aproperly trained contractor, you can be confident that you are choosing the best heating and cooling system for your home’s comfort–and your finances.
Space-Saver Solution
Part of our Sound & Space Constraint Solution, the Prestige Series Side-Discharge Universal Heat Pump is the ideal product for when installation locations are cramped. It features a small footprint with size options as low as 40.2″ wide, 16.4″ deep and 36.6″ tall. This unit was designed to deliver whole-home comfort quietly and efficiently—further proof that good (and quiet) things come in small packages.
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.
Reduced Emissions
Households generate 72% of greenhouse gas emissions, so switching to a heat pump can make a big difference for the environment–today.
Less Environmental Impact
The 7mm condenser coil provides a decrease in refrigerant requirements up to 15%, lowering the amount of greenhouse gases emitted while contributing to Rheem’s sustainability goal of a 50% reduction in our greenhouse gas footprint by 2025. A win for all of us.
Quiet Operation
Efficient homecomfort shouldn’t be noisy. That’s why our heat pumps are designed with acoustics in mind. Sound-dampening features such as refrigerant tubing design, fan blade approach and innovative compressor and drive technologies ensure that as efficiency goes up, sound levels stay low–as low as 50 dB.6
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 Heat Pump 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 RD18AY 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.
| Model No. | Description |
|---|---|
| RD18AY24AJVCA | 2 ton |
| RD18AY36AJVCA | 3 ton |
| RD18AY48AJVCA | 4 ton |
| RD18AY60AJVCA | 5 ton |
The Rheem Endeavor RD18AY 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
Among Heat Pumps, 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.
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.
Federal Incentives Available (conditions apply)
As part of the Inflation Reduction Act of 2022, homeowners may be eligible
for up to $2,000 for qualified heat pumps as part of the Energy Efficient Home
Improvement Federal Tax Credit (Tax Section 25C). The RD18AY also meets
the High Efficiency Electric Home Rebate Program criteria and may qualify for
additional funds—dependent on state participation and household income.
Visit Rheem.com/Federal-Incentives for complete details and conditions.
FEATURES AT A GLANCE
Cooling & Heating Efficiencies Up To: 19 SEER2 / 13 EER2 / 10 HSPF2
Nominal Sizes: 2 to 5 Tons
Cooling & Heating Capacities: 22.8 to 53 kBTU
Sound Rating: As low as 50 dB
EcoNet® Enabled: Yes
Compressor Type: Inverter Driven, Variable Speed3 Twin Rotary
Condenser Coil Type: 7mm
Operating Range:
Cooling: 50–125°F
Heating: -22–70°F
Refrigerant: R-454B
PlusOnes:
- PlusOne® Variable Speed Twin Rotary Compressor & Inverter Drive – Variable speed operation with EcoNet® Smart Thermostat or legacy and other thermostats
- PlusOne Diagnostics – Bluetooth technology aids in quick & easy service
- PlusOne Refrigerant Detection System™ – Integrated, patented design providing system protection and homeowner peace-of-mind with low GWP refrigerant monitoring
Additional Standard Features:
- Filter Drier (Field-installed)
- Front Seating Service Valves
- Internal Pressure Relief Valve
- Powder Coated Paint
- Rust-resistant Screws
- Optimized Venturi Airflow
- External Gauge Ports
- Easy Accessibility
- Base Pan Heating Element
(Commissioning Kit Required)
Limited Warranty:
- Conditional Parts – 10 Years (registration required—no AHRI-matched system requirement)
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.
