The Model AFS-222 is a general purpose proving switch designed for HVAC and Energy Management applications. It may be used to sense positive, negative, or differential air pressure.
The plated housing contains a diaphragm, a calibration spring and a snap-acting SPDT switch.The sample connections located on each side of the diaphragm accept ¼" OD metallic tubing via the integral compression ferrule and nut.
An enclosure cover guards against accidental contact with the live switch terminal screws and the set point adjusting screw. The enclosure cover will accept a ½" conduit connection.
| Mounting Position | Mount with the diaphragm in any vertical plane |
|---|---|
| Set Point Range | 0.05 ± 0.02" w.c. to 12.0"w.c. |
| Field Adjustable Range | Operate 0.07" to 12.0" W.C.; Release 0.04" to 11.2" W.C. |
| Maximum Pressure | 1/2 PSI |
| Operating Temperature Range | -40F to 180F (-40C to 82C) |
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Cleveland Controls AFS-222 Air Pressure Sensing Switch Technical Data
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