Rugged Construction: Designed to withstand the high temperatures and frequent cycling of modern gas furnaces

a humming or chattering coil

Featuring a 114

Key Benefits Direct OEM Compatibility: Engineered as the exact Lennox 68J61 replacement to ensure seamless mechanical and electrical integration without field modifications

utilizing this genuine HVACR controller ensures the internal logic remains synchronized with original equipment manufacturer specifications

Velocity Boiler Works (Crown) 960126 Switch 320734-701 Rugged Construction: Designed to withstandThe Velocity Boiler Works 960126 Blocked Vent Switch is a critical safety component designed for gas fired natural draft boilers, specifically the Crown BSI and CWI series. Engineered to act as a spill switch, this assembly monitors flue gas conditions within the draft diverter or relief opening. When a chimney obstruction or downdraft occurs, heat builds up at the sensor location; once the 220F activation temperature is reached, the switch opens the