The Ruud Endeavor Line 4 Ton Constant Torque Multipoise Air Handler - Standard Efficiency - 21" N Coil - R-454B - 208-240V is engineered to provide dependable indoor comfort, consistent airflow, and flexible installation options for residential HVAC systems. Designed for compatibility with modern R-454B refrigerant systems, this air handler delivers reliable performance while supporting current efficiency and refrigerant standards.
Featuring a constant torque ECM blower motor, the unit helps maintain steady airflow throughout the home, improving comfort and enhancing system operation. The integrated 21-inch N-coil design promotes efficient heat transfer and works with the factory-installed TXV metering device to optimize refrigerant flow and overall performance. With a rated airflow of up to 1,600 CFM, this 4-ton air handler is well suited for larger residential applications requiring strong and consistent air distribution.
Its multipoise cabinet design supports upflow, downflow, and horizontal installation configurations, making it an excellent choice for new construction projects and replacement applications alike. Quiet cabinet insulation helps reduce operating sound levels while protecting internal components for long-term durability.
Built for reliability and serviceability, the Ruud Endeavor Line air handler offers easy access for maintenance and inspection, providing homeowners and contractors with a versatile, efficient, and dependable comfort solution year-round.
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