Penn F262 Series Installation Instructions Manual

F262 Series Airflow Switch

Installation Instructions

Applications
IMPORTANT: Use this F262 Series Airflow Switch only as an operating control. Where failure or malfunction of
the F262 switch could lead to personal injury or property damage to the controlled equipment or other property,
additional precautions must be designed into the control system. Incorporate and maintain other devices, such as
supervisory or alarm systems or safety or limit controls, intended to warn of or protect against failure or malfunction
of the F262 switch.
IMPORTANT: Utiliser ce F262 Series Airflow Switch uniquement en tant que dispositif de régulation. Lorsqu'une
défaillance ou un dysfonctionnement du F262 switch l risque de provoquer des blessures ou d'endommager
l'équipement contrôlé ou un autre équipement, la conception du système de contrôle doit intégrer des dispositifs
de protection supplémentaires. Veiller dans ce cas à intégrer de façon permanente d'autres dispositifs, tels que
des systèmes de supervision ou d'alarme, ou des dispositifs de sécurité ou de limitation, ayant une fonction
d'avertissement ou de protection en cas de défaillance ou de dysfonctionnement du F262 switch.
The F262 Series Airflow Switch detects airflow or the absence of airflow by responding only to the velocity of air
movement within a duct. The switch can be wired to open one circuit and close a second circuit (SPDT) for either
signaling or interlock purposes.
Airflow failure during the normal operation of air handling systems may cause overheating, coil icing, or other
conditions that may be detrimental to the equipment.
Typical applications include:
• make-up air systems
• air cooling or heating processes
• exhaust systems
The switch has a Type 3R/IP43 enclosure with an integral mounting plate. A mounting plate gasket is supplied with
each control.
The enclosed SPDT PENN switch has color-coded terminals for ease of wiring. The control is factory set at
approximately the minimum flow rate. (See Table 1) 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 F262 switch 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 Table 1 for minimum flow required to actuate the control.
The switch is not designed for use where it is exposed to outside weather.
Refer to the
F262 Series Airflow Switch Installation Instructions
Part No. 24-7664-2977, Rev. D
QuickLIT website for the most up-to-date version of this document.
1
Issued September 2018