The Daikin-McQuay 4019057 Remote Controller Assembly is a user interface component designed for compatible Daikin-McQuay air conditioning systems. It allows users to operate and adjust system settings, including temperature, operating modes, and fan speeds. The controller communicates commands to the indoor unit, enabling convenient management of heating and cooling functions. Ideal f... https://www.partshnc.com/4019057-daikin-mcquay-remote-controller-assembly