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General Description
LPS air flow switches are widely
used to control flow setpoints in HVAC
applications. In addition to being robust,
they have the added benefit of being
inexpensive as well.
The principle of operation is quite simple.
Air flow exerts a force on a paddle
actuating a dust-tight microswitch. the
switching point may be adjusted
continuously within a wide range, making
the LPS useful in a large variety of
applications.
The instrument is factory set to switch at 195 FPM. To handle air velocities of more
than 920 FPM, the paddle may be cut at a
precalibrated mark. This automatically
changes the factory set point to 490 FPM.
Specifications
Maximum Air Temperature: 185°F
Mounting: Universal. The arrow must
point in flow direction. Vertical installation
requires re-adjustment of the switching
point to compensate for paddle weight.
Micro Switch: SPDT, 15A, 2000 VA, 250
VAC
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Wiring:
Red-white: opens on decreasing flow
Red-blue: closes on decreasing flow
Materials:
Paddle: 321 SS
Lever: brass |
Ordering Information
Dimensions
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