Utica-Dunkirk 1500009 Blocked Vent Safety Switch 280°F

The Utica-Dunkirk 1500009 Blocked Vent Safety Switch 280F is a protective control component used to monitor venting conditions in compatible gas-fired heating equipment in HVAC systems. Commonly installed in furnaces and boiler system, this safety switch detects excessive temperatures that may result from restricted or blocked vent operation and interrupts the electrical circuit when the specified limit is reached. It operates as part of the appliances safety monitoring assembly, helping reduce the improper exhaust conditions during heating cycles. This part is used in repair and replacement applications.