this high limit temperature switch monitors plenum temperatures and provides a fail-safe against overheating

simplifies installation and maintenance by allowing for easy zeroing and bleeding without breaking process lines

and the main firing control

identical replacement for model 6010HGM01-AM0015

McDonnell & Miller 94-HD Pump Controller Refrigerant this high limit temperature switchThe McDonnell & Miller 94 HD Pump Controller (Part Number 165300) is a high performance replacement head mechanism engineered for heavy duty commercial and industrial steam boiler applications. Designed specifically for Series 94 and Series 194 units, this combination low water cut off and pump control manages liquid levels in systems with a maximum pressure of 250 PSI. This assembly includes the No. 5 snap acting SPDT switch, providing reliable dual