Can I use a manual reset switch instead of this auto-reset model

and sleeve required for 1/8" O

it opens the electrical circuit to the gas valve if internal plenum temperatures exceed 150°F and automatically re-closes once the temperature drops by 40°F

How do I identify which terminal is for the fan and which is for the compressor

Common causes include liquid slugging

Nordyne 626391R Limit Switch Can I use a manualThe Nordyne 626391R Limit Switch is a critical high temperature safety control designed for precise thermal monitoring within Nordyne, Intertherm, and Miller gas fired furnaces. This L140F automatic reset limit switch is engineered to open the electrical circuit at a fixed temperature of 140 degrees Fahrenheit, preventing heat exchanger damage and ensuring safe appliance operation during restricted airflow or over fire conditions. As a genuine OEM