The Model AFS-145 is a general purpose proving switch designed for package burner, furnace, fuel-burning equipment, HVAC and other 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 â…›" pipe.
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.
Mount Position | Mount with the diaphragm in any vertical plane |
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Set Point Range | 0.05 ± 0.02" w.c. to 12.0"w.c. (1.27 mm w.c. ± 0.508 mm w.c to 304.8 mm w.c.) (0 to 0.43 psi). |
Maximum Pressure | ½ psi (0.03 bar) |
Operating Temperature Range | -40F to 180F (-40 to 82C) |
Electrical Rating | 300 VA pilot duty at 115 to 277 VAC, 15 amps noninductive to 277 VAC, 60 Hz |
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Cleveland Controls AFS-145 Air Pressure Sensing Switch With Adjustable Set Point Range Product Datas
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