Reznor 112751 Switch this module provides reliable electronic

this module provides reliable electronic ignition control for gas-fired furnaces

OEM Compatibility: Specifically designed for Carrier

While designed as a Newco 705595 replacement

preventing the Bunn 28122

Reznor 112751 Switch this module provides reliable electronicThe Reznor 112751 Blocked Vent Switch is a critical safety component designed for HVAC unit heaters and furnace systems. As an OEM Reznor replacement part, this L200F limit switch is engineered to monitor airflow within the ventilation system. It features a fixed 200 degree Fahrenheit trip point, serving as a primary defense against hazardous flue gas backup. When a blockage occurs in the vent pipe, the resulting temperature spike triggers the switch