[ithos]

Originally Posted by retiredguy123

I agree that the variable speed units offer some advantages and they are most likely the wave of the future. My comments are strictly related to the current residential market, the cost, and the repairability of the different systems. As of today, I would prefer the "tried and true" approach. I'll let someone else experiment with the new-fangled equipment.

Variable speed units have been around for decades. In most cases they will last much longer than standard induction motors and provide better energy efficiency and temperature control.

https://www.achrnews.com/ext/resourc...hite-Paper.pdf
Variable Speed’s Impact on HVAC | 2017-02-06 | ACHRNEWS | ACHR News
The Scoop on Variable Speed Motors - Lee's Air, Plumbing and Heating
https://www.hvac-talk.com/threads/va...ility.2219493/
VSD vs fixed speed - Atlas Copco USA