Dwyer Instruments A3002 Pressure Switch/Gage 319852-301 While primarily an ASME steam

While primarily an ASME steam relief valve

Versatile Compatibility: Seamlessly integrates with major building automation systems and HVAC controllers

this stem assembly is the standard for restoring linear or equal percentage flow characteristics

How do I test if the ignitor is the problem

The 233-45653-05 was the original factory-installed assembly

Dwyer Instruments A3002 Pressure Switch/Gage 319852-301 While primarily an ASME steamThe Dwyer Instruments A3002 Pressure Switch Gage is a high precision, 3 in 1 instrument designed for the simultaneous measurement and dual limit control of differential pressure, positive pressure, or negative pressure. Engineered with the field proven Magnehelic gage movement, the A3002 provides a 0 2. 0" w. c. range with 2% full scale accuracy. This Photohelic pressure switch utilizes phototransistor actuated DPDT relays, ensuring chatter free