As the direct replacement for the legacy 5H78034-10 model

With a 3/8" flare connection and a 46 bar (667 psig) maximum working pressure

preventing the need for invasive repiping

This Reznor orifice is stamped with the #49 designation

Lennox 18H61 Motor R-410A As the direct replacement forThe Lennox 18H61 is a high performance direct drive blower motor engineered for reliability in residential and light commercial air handlers and furnaces. As a veteran grade OEM replacement motor, this 48Y frame unit is a Permanent Split Capacitor (PSC) design, operating at 208 230V and delivering a consistent 1 3 HP at 1075 RPM. This 4 speed motor allows for precise airflow calibration, ensuring optimal system static pressure and energy efficiency.