Exact OEM Compatibility: Verified for use in Trane RTHA

While the valve is factory-set to standard 12/30 PSI parameters

the 8210 series requires a minimum differential pressure of 5 PSI to function

) scale and measure across the two side terminals

the Honeywell 0901786A is rated for water and steam

Functional Devices TR40VA040 Transformer 318172-701 Exact OEM Compatibility: Verified forThe Functional Devices TR40VA040 is a versatile 40VA multi tap transformer designed for reliable 24VAC control voltage delivery in HVAC systems and building automation. Engineered to handle input voltages of 120VAC, 208VAC, or 240VAC, this Class 2 power source simplifies inventory by replacing multiple single voltage units. Its thermal fuse over current protection ensures circuit integrity by preventing damage during secondary shorts or overload