Running it on 50Hz may lead to overheating or insufficient magnetic pull force

It is designed for use with R410A refrigerant

maintaining system compatibility without requiring field modifications

As a critical flow control component

it offers a fail-safe solution that halts fluid flow when de-energized

Lochinvar & A.O. Smith 100208243 Switch 30067439-890 Running it on 50Hz mayThe Lochinvar & A. O. Smith 100208243 Blocked Drain Switch is a critical safety component designed for high efficiency condensing boilers and water heaters. As a veteran technician, you know that managing condensate is non negotiable; this OEM replacement part (formerly SWT2011) proactively monitors for atmospheric pressure changes or liquid backup within the drain system. When a blockage is detected in the condensate trap or drainage line, the switch