check for a closed circuit (continuity) across the terminals at room temperature

Common Questions Can I use this set on Danfoss valves other than the RA2000 series

this 24v single stage vert-stat is professionally rated for both standard 24VAC and 750mV millivolt systems

Will this work with R-410A systems

OEM Compatibility: Exact fit for the Johnson Controls T-4000 series

Johnson Controls A-4000-635 Filter Element check for a closed circuitThe Johnson Controls A 4000 635 is a high efficiency 5 SCFM filter element designed for critical air filtration within pneumatic control systems. Engineering for reliability, this dry type filter features a 1 2 inch NPT connection and delivers a 99% efficiency rating at 10 microns. Its robust design is purpose built for intake air filtration, effectively removing contaminants to protect sensitive downstream components like the A 4400 Series air