How do I claim the tax credit for my Mini Split heat pump/AC units? They are above the required seer rating. I had units installed last year and this year.

I have installed 3 total units. They are Pioneer brand. 1) 18,000 BTU 19 SEER2 Ductless Mini-Split Inverter+ Air Conditioner Heat Pump 2) 9,000 BTU 21.7 SEER2 Ductless Mini-Split Inverter+ Air Conditioner Heat Pump System