POWER ROOF VENTILATORS
Model CRDA
Direct Drive Domed Centrifugal Power Roof Ventilators
UL Listed for Standard 705 (most models)
Force ventilated motor compartment
Non-overloading backward inclined aluminum wheel
Weatherproof spun aluminum housing
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Model CRBCA
Belt Drive Domed Centrifugal Power Roof Ventilators
UL Listed for Standard 705 (most models)
Force ventilated motor compartment isolated from airstream
Non-overloading backward inclined aluminum wheel
Weatherproof spun aluminum housing
Vibration isolators on drive frame
Galvanized wire mesh birdscreen
“C-Drive” unique bearing and shaft assembly
L10 life exceeding 1,000,000 hours
Variable pitch motor pulley
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