York S1-3110-3571 Sequencer Is this a standard O-ring

Is this a standard O-ring or a flat gasket

Regular preventative maintenance should include wiping the cell surface to ensure a clear line of sight to the flame

Is adhesive required for the P100100 installation

as an HVAC technician

York S1-3110-3571 Sequencer Is this a standard O-ringThe York S1 3110 3571 Sequencer is a critical multi stage control designed for precise management of heating elements and blower motor timing in electric furnaces. This electric heat sequencer 2 stage relay prevents high amperage inrush current by staggering the activation of heating coils, effectively protecting the buildings electrical infrastructure from surge related trips. Built to exact York S1 3110 3571 specifications, this component features a