Burnham Boiler 6016066 Limit Switch protecting against flue obstructions or

protecting against flue obstructions or collector box blockages that could lead to combustion issues

but always verify with a multimeter during installation to ensure proper 24V output

or improper venting pitch causing exhaust gases to back up into the stack

a consistent Common wire connection to the 24V transformer is required for standard operation across technical HVACR control circuits

Burnham Boiler 6016066 Limit Switch protecting against flue obstructions orThe Burnham Boiler 6016066 Limit Switch is a critical genuine OEM replacement part designed for high limit temperature protection in hydronic heating systems. This 200F manual reset limit switch acts as a fail safe, interrupting the burner circuit if the boiler water temperature exceeds the safe preset threshold. Unlike automatic reset controls, this 1 2" NPT mounted component requires manual intervention once tripped, ensuring that a technician can