Type PSNCFA Air Supply Hooded Power Roof Ventilator
APPLICATIONS: Type PSNCFA36, Supply, Belt Drive, Hooded Power Roof Ventilator with Formed Steel Blades and Type RPFDC36 / PFDC36, Reversible Supply or Exhaust, Direct Drive, Hooded Power Roof Ventilator with Cast Aluminum Airfoil Blades manufactured by Farm Products Division of American CoolAir Corporation are designed for Controlled Environmental Systems of farm buildings to provide make-up air fresh air supply for farm buildings and greenhouses.
CONSTRUCTION:Type PSNCFA 36 Fan incorporate Style NCF fan components. Bird/insect screen, or filter section in the hood is used to screen and filtrate the make-up air. The motor and drive components are accessible through the removable side panel. The ventilators utilize a cross-frame to support stationary shaft-bearing-cast aluminum hub-pulley assembly. Drive belt power is applied to the fan/hub assembly in the same plane as the bearings, reducing bearing load and increasing bearing life. Bearings are permanently lubricated and sealed. The six die-formed steel propeller blades are securely attached at three points on the hub. All blade assemblies are dynamically balanced.
MATERIALS: The PSNCFA 36 assembly and curb cap are fabricated of heavy gauge steel. Dampers are constructed of aluminum. The roof curb is made of galvanized steel with fiberglass insulation. Painted parts are coated after the American Coolair five-stage pretreatment system prior to the application of the thermosetting epoxy powder paint with an average thickness of 3 mils, baked at 400°F for smooth and durable finish. Parts can be fabricated also out of mill finish (silver) aluminum
BELT DRIVE: Belt driven models use V-Belts with Variable Pitch Pulles which allows fan speed adjustment.
MOTORS:The American Coolair air-over-motor design provides extra capacity and economy because it serves to dissipate heat and thus increase horsepower capability. Totally enclosed motors are standard. Several alternatives, such as explosion proof motors, two speed, energy efficient motors and severe duty motors, are available. Only nationally recognized brand motors with nationwide service facilities are used.
WIRING: Type PSNCFA 36 features a conduit through the curb cap for convenience in connecting power supply. If a safety disconnect switch accessory is specified, it is mounted above curb cap and attached to the conduit for a rain-resistant connection and switch enclosure.
CERTIFICATION:All Types PE vntilators are listed under UL705 – E39944 by Underwriters Laboratory, Inc. to U.S. and Canadian safety standards. AMERICAN COOLAIR CORPORATION certifies that the performance data for the type PSNCFA, RPFDC and PFDC fan models is based on tests conducted in an accredited laboratory in accordance with ANSI/AMCA Standard 210-85.