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It features a technical set point range of 25°F to 75°F with a fixed 2°F differential
this switch is designed to handle the frequent cycling and moisture typical in condensing furnace environments
The Fenwal 12-G27121-000-07 is the current manufacturing designation for the 450-degree vertical brass unit with Close on Rise contacts
In these induce-draft systems
this linkage provides the reliable coupling required for integrated building management HVAC control systems
Carrier 350001-2032 Rollout Switch 321894-708 It features a technical setThe Carrier 350001 2032 Rollout Switch is a mission critical safety limit designed for precise over temperature protection in residential and commercial gas furnaces. Engineered as a genuine Carrier Factory Authorized Part, this thermal cutoff operates as a manual reset SPST switch, calibrated to trip at a fixed threshold of 144C (291F). When flame rollout or excessive heat is detected in the burner compartment, the switch opens to interrupt the