This unit operates on 24 Vac/Vdc and is compatible with all non-corrosive refrigerants

use a T&P relief valve rated for both temperature and pressure

Featuring a balanced valve design

It is recommended to inspect the existing fan blade hub and set screws for wear during the motor swap to ensure a secure fit on the new shaft

Designed for easy integration into building automation systems

Lochinvar & A.O. Smith 100111584 Pump Circulator 320788-704 This unit operates on 24The Lochinvar & A. O. Smith 100111584 Pump Circulator is a critical OEM replacement part designed for high efficiency hydronic heating and domestic hot water systems. Built to withstand the rigorous demands of commercial and residential boilers, this high head circulator pump ensures consistent fluid velocity and thermal distribution across the heat exchanger. It serves as a direct replacement for legacy part numbers such as Lochinvar ARM2801 and A.