McDonnell & Miller FS6-1 Switch R-410A managing both main gas flow

managing both main gas flow and pilot bypass through a single-dial operation

Extended Reach: The 100-foot span allows for flexible remote thermostat placement in complex zoning applications

technicians can effectively prevent equipment damage and freezing in low-ambient conditions

Can this unit replace older Honeywell L4064 series controllers

What is the difference between this and a standard fixed-temperature sensor

McDonnell & Miller FS6-1 Switch R-410A managing both main gas flowThe McDonnell & Miller FS6 1 (Part Number 115600) is a high sensitivity liquid flow switch engineered for heavy duty industrial and commercial applications where precision monitoring is mandatory. Designed with a 1" NPT in line connection, this SPDT snap acting switch eliminates the need for a pipe tee, reducing installation complexity and potential leak points. It is specifically optimized for low flow actuation, making it the industry standard for