A.J. Antunes JD-2-PURPLE Pressure Switch 318518-761 Also identified as the TST2015

Also identified as the TST2015

the requirement to run a vent line to the outdoors is typically eliminated

or inconsistent timing during the heating cycle

Common Questions How do I adjust the set point on the AFS-275-112

A.J. Antunes JD-2-PURPLE Pressure Switch 318518-761 Also identified as the TST2015The A. J. Antunes JD 2 PURPLE Pressure Switch is a high precision, industrial differential vacuum and air pressure switch engineered for sensitive monitoring in HVAC and combustion safety systems. This OEM air proving switch features a specialized purple spring calibration, supporting an adjustable set point range from 0. 1 to 10 inches water column (W. C.). Designed with a single pole double throw (SPDT) snap action switch, it provides reliable auto