Johnson Controls 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 signalling or interlock purposes.
Refer to the
F262 Series Airflow Switch Installation Instructions
1
Part No. 24-7664-2977, Rev. C
QuickLIT website for the most up-to-date version of this document.
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 PENNswitch has color-coded
terminals for ease of wiring. The control is factory set at
approximately the minimum flow rate. (SeeTable 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.
Issued March 2016