By containing the sound at the source

Rugged Construction: Built to withstand the high-vibration environment of commercial condensers and air handlers

The unit features a DIN 43650A / ISO 4400 electrical connection

making it a versatile choice for a wide range of evaporation and condensing applications

This HVAC zoning damper is 1/4" undersized to ensure a seamless fit into standard ductwork slots

Daikin-McQuay 4022328 Control Box Assembly R-407C By containing the sound atThe Daikin McQuay 4022328 Control Box Assembly is a critical OEM replacement part designed for precision management of electrical functions within commercial HVAC systems. As a veteran grade HVAC control module, this assembly houses high spec internal circuit boards, relays, and terminal connectors required to maintain communication between the mechanical hardware and system logic. Replacing a compromised DAKM4022328 control box ensures that voltage