Proper installation of this replacement control board is essential for restoring reliable furnace operations and improving system longevity

As an RHGP-G model

It is critical to match the control voltage of your thermostat or BAS controller to the actuator

which is the leading cause of mechanical and electrical failure in industrial HVAC units

Installation is streamlined via extended copper connections designed for 3/8" ODF sweat fittings

McDonnell & Miller 349400 Black Y Assembly Els PW 17895 Proper installation of this replacementThe McDonnell & Miller 349400 Black Y Assembly (Model SA159 17) is a critical replacement component for low water cut off systems and mechanical water feeders. This assembly is engineered to integrate seamlessly with Series 47 and Series 47 2 water feeders, as well as Model 64 A and Model 42S A controls. As a primary part of the MA 159 and MA 259 quick hook up fittings, it enables technicians to perform direct installations into gauge glass tappings