Lochinvar & A.O. Smith 100326994 Switch 322838-753 the 8221G31 requires a minimum

the 8221G31 requires a minimum pressure differential of 5 PSI to open

They are technically identical in voltage

Which models are compatible with this blower wheel

Exceeding this limit can cause permanent damage to the volatile liquid charge inside the capillary

Lochinvar & A.O. Smith 100326994 Switch 322838-753 the 8221G31 requires a minimumThe Lochinvar & A. O. Smith 100326994 is a professional grade L290F manual reset thermal switch designed for critical high limit safety applications in commercial and residential water heaters. As a direct replacement for legacy part 100167474, this manual reset limit switch ensures the burner circuit is interrupted if internal temperatures exceed the 290 degree Fahrenheit threshold. This component is essential for preventing hazardous overheating