High-visibility reset switches and handle-actuated lockouts make diagnostic and maintenance procedures more efficient for contractors on-site

Precision Scheduling: Minimum 1-minute switching increments and 2-second pulse feature for bell ringing or mechanically held contactors

Reusing an old elastomer that has been compressed and heat-set often leads to leaks once the assembly is re-torqued

the Maxitrol MR212G series simplifies the fuel train while delivering the precise thermal output required for high-capacity process heating and stabilized area heating applications

the manual reset functionality is an essential diagnostic feature

McDonnell & Miller 194-7B Controller R-410A High-visibility reset switches and handle-actuatedThe McDonnell & Miller 194 7B (Part Number 167200) is a rugged, industrial grade Combination Low Water Cut Off and Pump Controller designed for high pressure steam applications. Built to manage steam boilers with a maximum pressure of 250 psi, this unit utilizes No. 7B proportional control via a built in potentiometer switch. This configuration is essential for modulating feed valves, ensuring precise water level maintenance and preventing dry fire