: Step-by-step instructions for mounting the lower case onto a flat wall surface using provided screws. Wiring Diagrams

: Must be installed on a flat surface away from direct sunlight, heat sources, and moisture to prevent electrical failure or inaccurate temperature sensing. Wiring Precautions

Once powered, the controller will usually auto-detect the indoor unit, but you may need to configure settings:

: Appears when a central controller is overriding local settings.

: If you are using two remote controllers to operate the same indoor unit (e.g., in large rooms), you must assign one as MAIN and the other as SUB .