Mounting - PENN Controls - F262AA - Flow, Liquid Level, and Air‐Volume Control - F262 Airflow Switch

F262 Series Airflow Switch Installation Guide

Brand
PENN Controls
Product name
F262 Airflow Switch
Document type
Installation Guide
Part number
24-7664-2977
Document revision
E
Revision date
2021-04-20
Language
English
Important: Mount the switch so that the housing is level horizontally, or plumb vertically. Use a shim, if necessary.

You can mount the F262AA switch on the top, side, or bottom of a duct.

  • Mount the switch in a horizontal duct whenever possible. In a horizontal duct, make sure that the switch housing is level and the paddle is at approximately a right angle to the air flow.
    Figure 1. Mounting the F262 Switch in a horizontal duct

  • When you mount the switch in a horizontal duct that is not horizontally true, check with a level and place a shim under the switch mounting plate. Do not mount the switch without a shim. See the following figure.
    Figure 2. Mounting the F262 Switch in an angled duct

  • When you mount the switch in a vertical duct where the airflow is upward as shown in the following figure, see Table 1 for the minimum flow required to actuate the switch. The maximum air velocity must not exceed 2,000 fpm (10.16 m/s).
    Figure 3. Mounting the F262 control in a vertical duct

  • When you mount the switch in a vertical duct where the airflow is downward as shown in the previous figure, adjust the switch:
    1. Turn the adjustment screw clockwise until the switch closes the circuit between the red and blue terminals when there is no air flow. See the following figure.
    2. Turn the adjustment screw one additional turn clockwise.
Figure 4. F262 Switch action