Carrier Ductless Air Conditioner

• 37MBHA = Carrier Infinity 21 Light Commercial Mini Split Heat Pump series  • 36 = typically 36,000 BTU, so about 3 tons • This series is a single-zone, variable-speed heat pump line with up to 21.3 SEER2 and 11.1 HSPF2 depending on match-up/configuration. Carrier also notes heating capability down to -22°F and cooling up to 122°F for the series.  So in plain English, that model is most likely a 3-ton Carrier mini-split / ductless heat pump unit.  One thing to note: that’s a different product family than the first model you showed: • 26SCA424N003 = standard outdoor central A/C condenser style • 37MBHAQ36AA3 = ductless / mini-split heat pump style  If you want, I can also help decode whether 37MBHAQ36AA3 is the indoor head or outdoor unit, and estimate a retail / contractor value