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Low Back Pressure Performance: Specifically tuned for freezing and deep-chill applications
The included 2-wire ventilation damper uses a spring-return mechanism
or a high differential pressure exceeding the MOPD
Enhanced System Protection: Minimizes thermal stress on heat strips and prevents premature wear on fan relays and contactors
Installation Efficiency: Features 1/4 inch male quick connects and top-accessible pilot adjustment and pressure taps
Greenheck SP-A390-QD Ceiling Exhaust Fan 30067439-890 Low Back Pressure Performance: SpecificallyThe Greenheck SP A390 QD is a professional grade ceiling exhaust fan engineered for high performance air evacuation in commercial and multi family residential environments. This direct drive unit delivers a versatile airflow range of 279 to 410 CFM, making it a reliable solution for maintaining air quality in large restrooms and clean air applications. Constructed with a galvanized steel housing and lined with acoustic insulation, the SP A390 QD is
US$ 54.99
US$ 32.76
US$ 400.09