Lochinvar & A.O. Smith 100233301 Switch R-407C This "945" bill of materials

This "945" bill of materials includes a POE oil charge (45 oz initial)

Designed with a CCW (Counter-Clockwise) rotation (lead end)

For technicians troubleshooting a Carrier Error Code 31

This discharge line muffler is rated for a maximum operating pressure of 700 PSIG and can withstand temperatures ranging from -22°F to 248°F

Universal Compatibility: Fits 1/4 inch to 1/2 inch square or 3/8 inch to 5/8 inch round shafts for broad application support

Lochinvar & A.O. Smith 100233301 Switch R-407C This "945" bill of materialsThe Lochinvar & A. O. Smith 100233301 Switch is a critical fixed setting Normally Open (N. O.) air pressure switch designed for negative pressure sensing applications in high efficiency venting systems. Calibrated specifically to 1. 25" WC, this OEM component serves as a primary safety proving switch, ensuring the combustion blower is generating sufficient draft before the ignition sequence initiates. For veteran technicians, this 100233301 pressure