Also referred to as a combustion air switch or draft proving switch. Closes at -0.20" of wc when the combustion/booster motor is running. Please note that this is the replacement for the 632332. We realize that it doesn't look the same, and that the plug on some wires may need reworked, and that the wc is not -0.35". However, Nordyne says this is the replacement as the 632332 is no longer manufactured.
For replacement tubing, order part # B13-614.
Replaces 632332, 6323320, 632453, 632453R & 922486.