Does this include the O-ring and nut for installation

Engineered to provide consistent timing for both the "on" and "off" delay sequences

Automatic Reset Function: Re-engages the circuit at 60°F

Can I use this 1/8" orifice to replace a larger 1/2" orifice

Heil Quaker ICP 1065294 Limit Switch Does this include the O-ringThe Heil Quaker ICP 1065294 is a precision engineered automatic reset limit switch designed for critical high temperature monitoring within HVAC air handlers and furnaces. Featuring a fixed temperature range of 110 140F, this thermal safety switch acts as a fail safe mechanism, disrupting the electrical circuit to the burner or heating elements should the plenum temperatures exceed safe operating parameters. As a genuine ICP replacement part, it