4 Ton Heat Pump | Ruud 16 SEER2 Variable-Speed, R-454B | RD16AY48AJVCA

The Ruud RD16AY48AJVCA is a 4-ton Endeavor Line heat pump built on the next-generation R-454B (A2L) refrigerant, delivering up to 16 SEER2 cooling efficiency from a variable-speed (iM inverter) compressor. It draws 26 A minimum circuit ampacity on a 45 A max breaker (208-230V / 1-phase / 60Hz), with 3/8" liquid and 7/8" vapor line connections for a straightforward line-set match.

Part of Ruud's low-GWP Endeavor Line, it pairs with Endeavor air handlers, coils, and gas furnaces to hit certified AHRI system ratings. A small-footprint side-discharge heat pump for tight installs, driven by a variable-speed twin-rotary inverter compressor and quiet as 50 dBA with the sound blanket. EcoNet Enabled with PlusOne Bluetooth diagnostics, and capable of universal replacement across R-454B systems. Backed by a 10-year conditional parts (with registration).

Manufacturer details: Ruud Endeavor RD16AY

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