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Why is my York furnace tripping the limit switch
as the fitting material often dictates the ultimate pressure and temperature limits
This part is the direct replacement for the internal switch mechanism in McDonnell & Miller Series FS1
Durable Construction: High-grade copper tubing resists vibration fatigue and system pressure spikes
it is the standard for technicians who prioritize accurate enthalpy control and long-term system stability
Sensus 143-1 1/4 Regulator Els PW 17895 Why is my York furnaceThe Sensus 143 1 1 4 Regulator is a job ready domestic service gas pressure regulator engineered for residential and light commercial loads. This specific configuration features a 1. 25 inch NPT straight body and a 3 8 inch orifice, optimized for precise flow control. Equipped with a green spring, it delivers a stable 6 14 inch w. c. outlet pressure range, essential for high efficiency burners and unit heaters. The rugged cast iron body and die cast
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