substituting it with a manual version may cause unnecessary system lockouts if the temperature fluctuations are within normal operating parameters

confirm your system’s technical manual for specific HVAC control board wiring requirements

frequently utilized for freeze protection or low-ambient cooling cycles

preventing end-user over-adjustment that leads to energy waste or equipment strain

In the Maxitrol 325-5 series

Watts 0121627 Control Valve Els PW 17895 substituting it with a manualThe Watts 0121627 Control Valve is a professional grade, lead free bypass control relief valve engineered for precise liquid pressure regulation in demanding commercial and residential mechanical systems. As the direct replacement for Watts 0391600 and the LF5300A 1 2 series, this 1 2 inch poppet type valve features a rugged lead free brass body designed to withstand rigorous field use while ensuring compliance with safe drinking water standards. The