The 90-164 is equipped with pressure connectors and double 1/4" quick-connect terminals for flexible wiring options in the field

Designed with a robust IP67 enclosure

A standard 1/2-inch socket or crescent wrench is required to tighten the nuts

reducing installation time and ensuring proper airflow around the sensing element for accurate temperature control calibration

McDonnell & Miller 150S-M-MD-HD HEAD R-410A The 90-164 is equipped withThe McDonnell & Miller 150S M MD HD serves as a direct replacement low water cut off head assembly for the 150S series combination pump controllers. Designed specifically for high pressure steam boiler applications, this heavy duty unit manages a maximum operating pressure of 150 psi (10. 5 kg cm). This specific model features a manual reset mechanism, which is critical for meeting safety codes in commercial boiler rooms where a manual restart is