AFS-222 Cleveland Air Flow Switch
$61.00
Air Pressure Sensing Switch, 0.05″ ± 0.02″ – 12″ w.c., 1/4″ OD Sample Line Connection, SPDT Contact Arrangement, Air or Combustion By-Products that will not Degrade Silicone, 1/2 Psi Max Pressure
Overview
The Cleveland Controls Model AFS-222 is a general-purpose air pressure sensing switch designed for HVAC and energy management applications. It can be used to sense positive, negative, or differential air pressure, making it a reliable choice for proving airflow in building automation systems. The unit features a plated housing containing a silicone diaphragm, a calibration spring, and a snap-acting switch.
Features
- Field-adjustable set point range from 0.05 to 12.0 inches water column
- Snap-acting SPDT contact arrangement for versatile control and alarm wiring
- Enclosure cover that protects against accidental contact with live terminals and the adjusting screw
- Sample line connectors with integral compression ferrule and nut that accept 1/4-inch OD tubing
- Flexible mounting options allowing installation with the diaphragm in any vertical plane
Specifications
- Set Point Range: 0.05 to 12.0 inches W.C.
- Maximum Pressure: 0.5 PSI (0.03 bar)
- Operating Temperature Range: -40 to 180 degrees Fahrenheit (-40 to 82 degrees Celsius)
- Electrical Rating: 15 Amps non-inductive up to 277 VAC, 300 VA pilot duty
- Conduit Connection: 7/8-inch opening accepts 1/2-inch conduit
- Approvals: UL, FM, CSA
Applications
- Proving airflow across filters, fans, and coils in commercial HVAC systems
- Energy management and building automation monitoring
- Differential static air pressure sensing in ventilation ducts
| Weight | 2 lbs |
|---|---|
| Dimensions | 5 × 7 × 4 in |
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