McDonnell & Miller 150S-MD-HD Controller 30067439-890 this model is a (NoPP)

this model is a (NoPP) variant

including the 3098-134 and 3098-161 models

meaning it trips at 130°F to prevent furnace overheating and automatically resets when temperatures drop by 30°F

Designed with a stainless steel outer jacket

The Amana-Goodman 10197201S Collector Box is a critical factory-authorized OEM part engineered for high-efficiency condensing furnaces

McDonnell & Miller 150S-MD-HD Controller 30067439-890 this model is a (NoPP)The McDonnell & Miller 150S MD HD (Part Number 173103) is a high performance combination low water cut off and pump controller head mechanism designed for demanding commercial and industrial steam boiler applications. This specific model features maximum differential operation, a critical function that prevents nuisance burner shutdowns in systems with fluctuating water levels or low pressure environments. By providing a wider 7 8 inch differential