Mixing refrigerants is never recommended as it alters the pressure-temperature relationship

Designed with a lead-free copper silicon alloy body

Using it in an evaporator application may lead to incorrect static pressure and potential motor burnout

High-Voltage Efficiency: Optimized for 277Vac circuits

Direct OEM Compatibility: Fits Lochinvar FTX models (400-725 L/N) and corresponding A

BROAN-NuTone 509 Fan 320788-703 Mixing refrigerants is never recommendedFor contractors demanding reliable, direct discharge ventilation, the BROAN NuTone 509 Fan delivers robust performance. Engineered for through the wall installation, this unit is ideal for managing humidity and odors in utility spaces. With an airflow rating of 180 CFM and a sound level of 6. 5 Sones, it efficiently moves air without excessive noise, making it suitable for laundry rooms, workshops, and even single car garages up to 195 sq. ft. The