It supports NTC and PTC temperature sensors

Complete Assembly: Includes a high-temp gasket (part 68-21812-04) to prevent carbon monoxide leaks and ensure immediate sealing

including the York YCE series microchannel units

Always verify voltage requirements on the existing unit plate before ordering

Heil Quaker ICP 1184422 Limit Switch R-134A It supports NTC and PTCThe Heil Quaker ICP 1184422 Limit Switch is a high precision safety component engineered for critical thermal regulation within residential furnaces. Designed with a normally closed circuit, this component functions as a primary high limit safety, preventing dangerous heat exchanger temperatures by interrupting the burner circuit if conditions exceed factory parameters. Specifically rated as an L170 20F limit switch, this device features a fixed open