The company has expanded its burner-boiler control offering. The C6097 gas/air pressure switch is now rated for a minimum ambient temperature of -40°F. The C7927/R7851 ultraviolet (UV) flame detector ...
https://siris-libraries.si.edu/ipac20/ipac.jsp?&profile=liball&source=~!silibraries&uri=full=3100001~!219128~!0#focus ...
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