Heil Quaker ICP 505962 Limit Switch 321894-709 self-checking scanners like the 45UV5

self-checking scanners like the 45UV5 or 55UV5 series are typically required by code

technicians can restore system pressure and improve overall energy efficiency

Its magnetic switching mechanism eliminates the need for vulnerable bellows

This HVAC contactor relay functions as a critical interface between low-voltage control circuits and high-voltage heating components

Heil Quaker ICP 505962 Limit Switch 321894-709 self-checking scanners like the 45UV5The Heil Quaker ICP 505962 Limit Switch is a mission critical safety component designed for precise thermal regulation in residential furnaces. This 140 160F AUTO limit switch features a bimetal disc that opens the electrical circuit when internal plenum temperatures exceed the 160? F safety threshold, effectively shutting down the burner to prevent heat exchanger damage or hazardous overheating. As the system cools to 140? F, the switch automatically