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As the direct replacement for H91AA-4
ensuring the valve opens quickly under low-flow conditions while preventing reverse flow effectively
it ensures the control board receives accurate conductivity signals to prevent dry firing conditions that can lead to catastrophic heat exchanger failure
Can this relay be used for vacuum signals
Setra 231GRS13MD Trans 326058-758 As the direct replacement forThe Setra 231GRS13MD is a professional grade wet to wet differential pressure transducer designed for rapid field deployment in HVAC hydronic systems and process control. This multi configurable unit features remote sensors with a conduit connection, eliminating the need for complex copper piping runs back to the transducer body and reducing labor by nearly a third. Built for heavy duty energy management systems, the 231GRS13MD includes an LCD display