high5 wrote:
Has anyone installed a 521 compressor saver on an AC unit? I know hard start 'boosters' are popular but, I haven't seen anything about the 5-2-1 compressor saver. They are usually installed on residential units but they do make a kit for 1 to 3 tons (12,000 - 36,000 btu). It looks like a good low cost alternative to the $300 Micro-air EasyStart unit. They both substantially reduce compressor start current.
The
5-2-1 Compressor Saver is clearly a hard start kit as is a Supco SPP6 but the
Micro-Air Easy Start Soft Starter Kit is not. Testimonials from those here on rv.net who have installed the Easy Start on their roof top A/C unit indicate this does solve the problem of successfully and repeatedly being able to start & run a 13,500 BTU A/C using a 2K genset such as the Honda EU2000i. If that's your intention the Easy Start is the solution I'd be looking at.