when paired with stainless steel trim valves

By waiting until the sensing point hits 38°F before restarting

It is also found in Hi Delta units (0302-0902) requiring an adjustable high limit

safeguarding sensitive low-voltage components against short circuits or thermal overloads

The standard 302-001 kit uses factory elastomers

Lochinvar & A.O. Smith 100208468 Control 322057-301 when paired with stainless steelThe Lochinvar & A. O. Smith 100208468 User Interface Control is a critical OEM replacement part engineered for precise management of commercial boiler and water heater systems. Designed to replace legacy part numbers RLY20031, RLY20031K, and 100167553, this control board serves as the primary communication hub between the technician and the appliance's internal logic. It is specifically calibrated for the Copper Fin II series, including models CF 402