AHRI Certified|cETLus Listed|ENERGY STAR Certified

• Flexible and Universal Install Compatibility: Works with nearly any R-454B HVAC System - including Rheem EcoNet® Enabled systems and non-communicating systems Install with any indoor system component via a Rheem algorithm Install as a Universal Replacement with minimal alterations (R-454B coil only - with TXV) Space Saver Solution: The RD18AY with footprint options as low as 36.6" tall and 40.2" wide is ideal for when installation locations are constrained; but is also perfect for any system or replacement option where an efficient, streamlined look is desired Quiet Operation as low as 50dB: Offers sound dampening features such as a sound blanket, refrigerant tubing design, fan blade approach and innovative compressor and drive technologies - ensure that as efficiency goes up, sound levels stay low EcoNet® Enabled: Automatic system configuration and optimization PlusOne® Diagnostics & Bluetooth® Connectivity: With the Rheem Contractor & EcoNet® Apps, built-in technology makes advanced set-up, monitoring, troubleshooting, and repairing the product easier than ever before PlusOne® Variable Speed Twin Rotary Compressor and Inverter Drive: Features variable speed operation from 45 to 100% capacity with the EcoNet® Smart Thermostat or with legacy and other thermostats when the utility 1 and 2 jumpers are installed or using the Rheem algorithm Provides precise temperature control, advanced humidity control and greater efficiency Brushless DC Condenser Motors (BLDC): Enhances reliability and allows for easier serviceability Swept Wing Fan Technology: Features quieter operation and improved unit acoustics 7mm Condenser Copper Coil: Requires less refrigerant allowing for a smaller and lighter footprint while enhancing reliability Optional Base Pan Heater: Utilizes a built-in thermostat to regulate the heating operation to prevent ice build-up on the base pan during extreme cold weather conditions Traditional Refrigerant Piping: Allows for use of existing refrigerant line sets for further ease of replacement installation flexibility 10-Year Conditional Parts Warranty (registration required): Coverage when installed as a heat pump only or as part of a system - with no AHRI matched system requirement Qualifies for Federal Incentives (conditions apply): Federal Tax Credit compliant system combinations across all product tonnages (effective through 12/31/32) up to $2000 for qualified heat pumps PlusOne® Refrigerant Detection System™: An integrated one-box, patented design featuring the A2L sensor and mitigation board, offering easier commissioning with a single component and simplified wiring configuration, compatibility with the any 24V thermostat application and system protection by automatically pausing outdoor unit operation - if excess refrigerant is detected 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 continued sustainability goal of reducing greenhouse gas emissions, while still delivering an exceptional level of energy efficient, dependable comfort

Rheem® Universal Heat Pump, Ultra™ Series, 208/230 V, 38 A, 191 W, 1/3 hp, 60 Hz, 1 ph Phase, 48000 Btu/hr Heating, 48000 Btu/hr Cooling, 4350 cfm Heating CFM Rating, 12 EER Rating, 18 SEER, 9.5 HSPF, Inverter Driven Variable Speed Compressor, R-454B Refrigerant, 3/8 in Liquid Line, 7/8 in Suction Line, 40 A Fuse Rating, Tonnage: 4 ton, 61 dBA Heating Sound Level, 40.4 in Overall Length, 19.8 in Overall Width, 58 in Overall Height, Additional Information: Side-Discharge, Communicating, EcoNet®, Bluetooth® Controls