Outdoor Unit	Indoor Unit	BTU Option
M4OA-28CDN1-QC4	MS11MI-09	9K BTU
M4OA-28CDN1-QC4	MS11MI-12	12K BTU
M4OA-28CDN1-QC4	MS11MI-18	18K BTU

Please note that warranty coverage is only limited to the following combination:
                      

            

Midea System 1	Midea System 2	Midea System 3