While it provides the mounting locations for high-limit switches and igniters

making it an essential component for residential heat pump systems requiring supplemental heat during defrost cycles or extreme ambient drops

and LB-107228T

The Emerson Blue Easy Set logic includes dedicated one-touch Home-Sleep-Away presets

The Robertshaw 41-602 Norton Mini Ignitor is a high-performance 120V hot surface ignitor engineered for precise ignition in modern residential and light commercial gas furnaces

Johnson Controls VG2231VM292NGGA Valve Assembly 30067439-890 While it provides the mountingThe Johnson Controls VG2231VM292NGGA is a heavy duty 4 inch 2 way normally open flanged globe valve designed for precise flow control in demanding hydronic systems. Built with a rugged cast iron body and durable brass trim, this assembly handles high capacity chilled or hot water applications with a 150 Cv rating. The ANSI Class 125 flat faced flange connection ensures a secure fit for industrial piping. Performance is driven by a tandem mount spring