Differential Pressure Switches w/Auto Reset

Product Data

ACI/AFS-222
ACI/AFS-262

The ACI/AFS Series Differential Pressure Switches are general purpose proving switches designed for both HVAC and Energy Management Applications.  These pressure switches can be used to sense either positive, negative, or differential air pressure.

The ACI/AFS-222 has a field adjustable input operating range of 0.07” to 12.0” w.c.  The AFS-222 has a setpoint range of 0.05” +/- 0.02” to 12” w.c. with a field adjustable release range of 0.04” to 11.2” w.c..  Each unit contains a diaghram, calibration spring, and a snap-acting SPDT switch. 

The ACI/AFS-262 has a field adjustable operating range of 0.07” to 2.0” w.c.  It also has a setpoint range of 0.05” +/- 0.02” to 2” w.c. with a field adjustable “release range” of 0.04” to 1.9” w.c..  Each unit contains a diaghram, calibration spring, and a snap-acting SPDT switch.

The sampling connections are located on each side of the diaghram.  They accept a 0.25” O.D. metallic tubing via the integral compression ferrule and nut.  The enclosure cover guards against accidental contact with the “live switch” terminal screws and the setpoint adjustment screw.  Both the AFS-222 and AFS-262 contain a 1/2” conduit connection in the cover of the enclosure.

All of the ACI/AFS series differential.   pressure switches come with a 2 year warranty.  Contact ACI for more information regarding the ACI/AFS Series differential pressure switches.

Input Pressure Range

AFS-222  (0.07” to 12” w.c.)

AFS-262  (0.07” to 2” w.c.)

Measured Media

Air, or combustion by-products that will not degrade silicon

Electrical Rating

300 VA pilot duty @ 115 to 277 VAC

15 mps non-inductive to 277 VAC, 60 Hz

Operating Temp. Range

-40 to 180^oF (-40 to 82^oC)

Output

1 set SPDT Contacts

Mounting Direction

Any Vertical Plane

Maximum Pressure

0.5 psi

Approval

UL, FM, CSA