Always verify voltage requirements on the existing unit plate before ordering

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

How do the auxiliary switches function on this model

the 680 PSI maximum working pressure is designed to accommodate the high-pressure requirements of R-410A and other common refrigerants

Heil Quaker ICP 1184422 Limit Switch R-134A Always verify voltage requirements onThe 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