Outdoor Unit	Indoor Unit	BTU Option
M3OA-21CDN1-QC4	MS11MI-09	9K BTU
M3OA-21CDN1-QC4	MS11MI-12	12K BTU
M3OA-21CDN1-QC4	MS11MI-18	18K BTU

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

Midea System 1	Midea System 3	Midea System 4