Great review! I’m a certified tech support and instructor for Mitsubishi(Yeah, Juan’s TTT class was super fun…), Fujitsu, York, Ruud, and Bosch. Also, recently became a proctor for Esco’s EPA. Mitsubishi hands down has best training out of all those. It’s a lot, especially if you do both M&P and City Multi(including controls), but you will be very confident after you take the classes and start applying your knowledge. I’ve always loved Esco, and I think Esco+METUS would be a great partnership. PS - if you can’t get into a classroom for training, listen to every METUS Tech Show podcast and you’ll receive abou the same amount of knowledge.
Inverters are really nothing new. It's been in the heavy commercial and industrial sector for decades now....its only because it's crept into residential market that it's being talked about....
So true. Unfortunately most residential/light commercial technicians, and even educators, are new to inverters and will need education in the fundamentals of their operation.