Drop-out voltage (60-135V) is the level where the relay de-energizes to reset the circuit for the next start cycle

this switch is specifically calibrated for high altitudes

The Parker 08FS3C2340ACF is a robust 1/2" NPT solenoid valve specifically engineered for the rigors of saturated steam and hot water service

As the direct replacement for the 8201-083BX

Resideo VU52S2002 Valve 321142-301 Drop-out voltage (60-135V) is theThe Resideo VU52S2002 is a high pressure Two Way Fan Coil Valve engineered for precise control in commercial hydronic systems. Featuring a normally open (N. O.) configuration, this 1 2" sweat connection valve is optimized for hot or chilled water applications, including systems with up to 60% glycol concentrations. It utilizes a 1. 0 Cv flow coefficient and a quick opening flow curve, making it ideal for rapid response in fan coil units, terminal