Lochinvar & A.O. Smith 100208514 Relay 30067439-890 Its NEMA 1 rated enclosure

Its NEMA 1 rated enclosure ensures protection for internal components while the integrated Hand-Off-Auto (HOA) override switch allows for manual circuit testing or emergency bypass without additional wiring

This stem utilizes a dual-thread configuration with 5/16-18 NPT for the valve side and 3/8-16 NPT for the float side to accommodate standard industrial float balls

including any necessary internal baffles or oil return orifices required for the supported CPKE and MPKE series

This usually occurs after repeated failed defrost attempts and must be manually cleared by cycling the 24V power to the control circuit

and MP953E 13-inch pneumatic actuators

Lochinvar & A.O. Smith 100208514 Relay 30067439-890 Its NEMA 1 rated enclosureThe Lochinvar & A. O. Smith 100208514 Relay is a critical 24V electromagnetic control designed for precise low voltage circuit switching in commercial and residential hydronic systems. As the direct replacement for RLY2903, this OEM component ensures seamless HVACR system compatibility when interfacing between thermostat controllers and high load mechanical parts. This 24VAC relay is frequently utilized in boiler control boards and water heater wiring