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  • Cooling & Heating Efficiency: 15.2 SEER2/11.7 EER2/7.8 HSPF2
  • Refrigerant Type: R-454B
  • Nominal Sizes: 1.5 to 5 Tons [TBD kW]
  • Cooling & Heating Capacities: 17.1 to 54 kBTU
  • Sound Ranking2: As low as 73 dB
  • EcoNet® Enabled: No
  • ENERGY STAR® certified3: Yes
  • Compressor Type: Two-Stage
  • Condenser Coil Type: 7mm
  • Features:
  • Expanded Valve Space: Provides a minimum working area of 27-sqaure inches
  • Refrigerant Detection System™4- Integrated, patented design providing system protection and homeowner peace-of-mind with low GWP refrigerant monitoring
  • Limited Warranty1: Conditional Compressor: 10 Years (registration required) Parts: 5 Years

    • 1For complete details of the limited and conditional warranties, including applicable terms and conditions, contact your local Contractor or go to Rheem.com for a copy of the product warranty certificate.
    2Based on Internal R&D Testing, May 2022. Sound levels are also dependent on proper installation and location of outdoor product.
    3Proper sizing and installation of equipment is critical to achieve optimal performance. Split system air conditioners and heat pumps must be matched with appropriate coil components to meet ENERGY STAR. Ask your contractor for details or visit EnergyStar.gov.
    4Factory or field installed in the furnace coil or air handler and is applicable to the complete heating and cooling system featuring Low GWP Refrigerant (A2L).

    Unit of Measure

    Type

    		 N/A Air Conditioner

    Nominal Capacity

    		 N/A 42000 Btu12.31 kW3.5 TR

    Refrigerant Type

    		 N/A R-454B

    Refrigerant Furnished oz.

    		 N/A 130

    Compressor Type

    		 N/A 2-stage Scroll

    Sound Level

    		 N/A 74 dB

    Weight

    		 N/A 240 lb

    Voltage

    		 N/A 208 to 230 V

    Number of Phases

    		 N/A 1

    Frequency

    		 N/A 60 Hz

    Maximum Overcurrent Protection

    		 N/A 40 A

    Minimum Circuit Ampacity

    		 N/A 24 A

    Compressor - Rated Load Amps

    		 N/A 18 A

    Compressor - Locked Rotor Amps

    		 N/A 106 A

    Condenser Fan Motor - Full Load Amps

    		 N/A 1.2 A

    Condenser Fan Motor - Locked Rotor Amps

    		 N/A 2.6 A

    Net Face Area - Outer Coil

    		 N/A 21.5 ft²

    Tube Diameter

    		 N/A 0.276 in

    Number of Rows

    		 N/A 1

    Fins per Inch

    		 N/A 22

    Outdoor Fan Diameter

    		 N/A 24 in

    Number of Blades

    		 N/A 3

    Motor HP

    		 N/A 1/5 hp

    CFM

    		 N/A 4206 ft³/min

    RPM

    		 N/A 850

    Watts

    		 N/A 246 W

    Air Handler

    		 N/A WH2TY4821STANN

    Total Capacity

    		 N/A 40000 Btu11.7 kW

    Net Sensible Capacity

    		 N/A 30700 Btu9 kW

    Net Latent Capacity

    		 N/A 9300 Btu2.7 kW

    SEER2

    		 N/A 15.2

    EER2

    		 N/A 11.7

    HSPF2

    		 N/A 7.8

    Indoor CFM

    		 N/A 1300 ft³/min613.5 L/s

    Heating Capacity - 47°F

    		 N/A 40000 Btu11.7 kW

    Heating Capacity - 17°F

    		 N/A 25000 Btu7.3 kW

    COP - 47°F

    		 N/A 3.60

    COP - 17°F

    		 N/A 2.50

    Depth

    		 N/A 35 3/4 in908 mm

    Width

    		 N/A 35 3/4 in908 mm

    Height

    		 N/A 39 in991 mm

    Shipping Depth

    		 N/A 38.38 in975 mm

    Liquid Line O.D.

    		 N/A 3/8 in

    Suction Line O.D.

    		 N/A 7/8 in

    N/A

    • Fully Louvered Steel Cabinet: Features durable construction to add protection from yard hazards, weather corrosion
    • Two-Stage Scroll Compressor: Features two speeds (high and low) of cooling and heating, providing more precise temperature control, lower humidity and greater efficiency when compared to single stage compressors
    • 7mm Condenser Copper Coil: Requires less refrigerant allowing for a smaller and lighter footprint while enhancing reliability
    • Inverted Reversing Valve: Allows for faster heat transfer with gravity assist shifting and reduced joint stress for increased reliability
    • Easily Accessible Control Box: Ease of installation and serviceability
    • PlusOne® Refrigerant Detection System™1: 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 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%2 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 Manufacturing Company. Rheem trademarks owned by Rheem Manufacturing Company.