The KRD Radial Blade Blowers are precision, balanced air-moving packages that feature a compact design and heavy-duty welded steel housing and motor base. The self-cleaning, cast aluminum wheels are ideal for exhaust systems where air is laden with dirt, lint, or foreign materials.
CF Bathroom Exhaust Fans are available as complete fan assemblies and come in easy-to-install contractor packages. The units are designed to fit 3- and 4-inch duct sizes and include a built-in damper that prevents backdraft, keeping tempered air in the home when the fan is not operating.
The Direct Drive Dynamo centrifugal fans include models up to 24-inch wheel diameter and Gplus (Green Plus) electronically commutated motor (ECM) options up to 2 hp. The fans are SWSI, Class I, Arrangement 4 general purpose air-moving devices designed for supply or exhaust applications in commercial, institutional, and industrial HVAC systems.
Greenheck’s Vektor line of laboratory exhaust systems now offers a direct-drive arrangement with four-options available on Vektor-MH (High Plume), Vektor-MD (High Plume with Dilution), and Vektor-MS (Variable Geometry Nozzle) models.
The Backward Curved Centrifugal Fan, equipped with a plastic impeller, is high-voltage powered by a built-in electronically commutated motor (ECM), which enables the fan to run efficiently with low-energy transmission loss.
AirEffect is a climate control system for large diameter fans. Through automation, AirEffect eliminates the need to constantly monitor and adjust a fan’s speed and direction in response to temperature fluctuations.
Single phasing often occurs in an electric motor when one pair of points on its power contactor fails because of the destructive arcing that takes place each time these points open or close. This arc suppressor is designed for AC power applications that operate between 110-480 V and have a maximum allowable current of 235 A (rms).