The Ruud Endeavor Line 4-Ton Constant Torque Multipoise Air Handler is a standard-efficiency indoor unit built for homes transitioning to next-generation refrigerants.
Factory-configured for R-454B, an A2L refrigerant, it meets current safety and efficiency codes as the HVAC industry phases out R-410A.
The blower is a multi-speed constant torque (ECM-style) motor delivering two-stage airflow for consistent, efficient comfort throughout the home. The matched N coil is built with aluminum fins bonded to internally grooved aluminum tubing, offering reliable heat transfer and strong resistance to corrosion over the system's lifetime. It uses 9 Amps and 115V.
As a true multipoise design, this air handler installs in upflow, downflow, or horizontal orientation, giving contractors flexibility across new construction, replacement jobs, and tight mechanical spaces. Its 21" N coil cabinet is sized to handle the airflow demands of a 4-ton system while keeping the footprint manageable for most installations.
Paired with a compatible Ruud or Rheem outdoor condensing unit, this air handler completes a full split-system heat pump or straight-cool installation, delivering dependable year-round performance. It's an excellent choice for contractors and homeowners looking for reliable, code-ready equipment backed by Ruud's long-standing reputation in residential HVAC manufacturing.
We service and install all types of HVAC heating and cooling equipment throughout Long Island, including (but not limited to) this coverage area:
Nassau County: Oyster Bay, Hempstead, North Hempstead, Glen Cove, Long Beach, Freeport, Valley Stream, Garden City, Great Neck, Mineola, Hicksville, Levittown, Massapequa, Bethpage, Plainview, Syosset, Jericho, Westbury, Rockville Centre, Farmingdale
Suffolk County: Huntington, Babylon, Islip, Smithtown, Brookhaven, Riverhead, Shelter Island, Southold, Southampton, East Hampton, Commack, Deer Park, Lindenhurst, Bay Shore, Brentwood, Central Islip, Hauppauge, Centereach, Selden, Medford, Patchogue, Shirley
Contact us today at (631) 779-3196
