Lochinvar & A.O. Smith 100187860 Probe R-134A Common Service Questions: Is the

Common Service Questions: Is the 19F21 compatible with older CBX series air handlers

These industrial thermal switches typically support a 10 Amp contact rating at 120 VAC or 5 Amps at 240 VAC

allowing for hands-off operation that cycles based on the unit's internal temperature

Applying lower voltage will result in insufficient torque and potential motor failure

Always verify your control circuit voltage before installation to avoid damaging the component

Lochinvar & A.O. Smith 100187860 Probe R-134A Common Service Questions: Is theThe Lochinvar & A. O. Smith 100187860 Probe is a precision engineered upper temperature probe designed for high efficiency commercial water heating systems. Featuring 40 inch leads, this OEM component is critical for monitoring internal tank temperatures to ensure safe and efficient cycling. It is specifically compatible with the Cyclone Xi and Mxi series natural gas water heaters, including BTH, SUF, and HCG 200 models. For field technicians, this