Spence Engineering D5 Pilot R-410A the manual crank allows for

the manual crank allows for manual positioning during commissioning or power outages

or staged equipment

While this is an OEM Fenwal harness

For PMRS model PTACs

Spence Engineering D5 Pilot R-410A the manual crank allows forThe Spence Engineering D5 Pilot is a heavy duty, self contained, spring operated pressure reducing pilot designed to provide precise control for steam and air systems. This cast iron pilot is the direct replacement for P D5 C1A1GS and is engineered for use with Spence E Series main valves. With a 1 10 psi spring range, it offers an accuracy of 1 2 psi, making it an essential component for low pressure steam regulation where stability is paramount. The