Lochinvar & A.O. Smith 100304110 Pump 320074-702 which replaces older numbers like

which replaces older numbers like WRE2031 and WRE2031-CABLE

Motor Longevity: Built-in time-out feature prevents motor burnout by de-energizing the actuator after its full stroke

If your tube heater fan runs but the igniter never glows

it compromises CFM output and increases amperage draw

direct-fit solution for maintaining indoor air quality and system integrity

Lochinvar & A.O. Smith 100304110 Pump 320074-702 which replaces older numbers likeThe Lochinvar & A. O. Smith 100304110 Pump is a critical variable speed circulator designed for high efficiency commercial water heaters and boilers. This 0 10VDC pump assembly utilizes a 1 1 4" flange connection to facilitate seamless integration into complex hydronic loops. Engineered for modulating pump control, it communicates directly with the appliance's control board to adjust flow rates based on real time demand, ensuring optimal delta T