Air Flow Switch, SPDT, Paddle Size 3-1/8" x 6-7/8" F62AA-9C

Description

The F62AA control detects airflow or the absence of airflow by responding only to the velocity of air movement within a duct. The control can be wired to open one circuit and close a second circuit (SPDT) for either signaling or interlock purposes. Failure of airflow during the normal operation of air handling systems may cause overheating, coil icing and other conditions that may be detrimental to the equipment.
The control has a NEMA 1 enclosure with an integral mounting plate. A mounting plate gasket is supplied with each control. The enclosed SPDT Pennswitch has color coded terminals for ease of wiring. The control is factory set at approximately the minimum flow rate. (See the Flow Rate Table.) It must not be any lower than the factory setting as this may result in the control failing to return at a "no flow" condition. If a higher flow rate setting is to be maintained, turn the range adjusting screw clockwise. The F62 can be mounted on the top, side, or bottom of a duct in a horizontal position whenever possible. If vertical duct mounting is required and the flow is downward, the control setting must be readjusted. If the flow is upward, refer to the Flow Rate Table for minimum flow required to actuate the control. The control is not designed for use where it is exposed to outside weather.
Airflow velocities in FPM required to activate the switch for any given duct size (horizontal or vertical upward flow) are shown in the Flow Rate Table. (Based on Standard air density of 0.075 lb/ft3