2bnb driver wrote:
Professor95,
A couple questions if you will. Maybe they have already been answered, if so sorry to have you repeat yourself. Have you tested these in a parallel configuration? If the RPM's increase slightly at around 400 watts on a single unit, would that mean that RPM's would increase slightly at 700-800 watts when in a parallel configuration?
There is one utube video out there that has been the deal killer for me unless you tell me differently. Something seemed to be out of sync and showed the inability to effectively handle a surge when paralleled together, Has this been your experience?
Mark
Mark,
I do have the parallel kit and have done quite a bit of testing.
When two units are parallel the RPM will not increase at the same point as a single unit. I have not measured RPM vs. Load on single vs. parallel but seat-of-the-pants and ear monitoring give favorable results.
There are two previously posted videos on You-Tube that "might" be of help to you. In these videos I have the units in parallel connected to my fiver with the 15,000 BTU A/C on in addition to all other nominal loads (converter/fridge/?). The main objective of these videos was to discover if I could start the A/C on twins and then drop one off after the compressor had started. Well, I can.... sorta. The A/C will run from one 2000i once the compressor is locked in but you cannot turn the other off as the loss of sync causes the one left connected to the load to go into overload. Sort of a disappointment, but I do understand why.
I know that is not the question you asked, but maybe the videos will show you some of the other stuff you seek.
Personally..... I still prefer the 46538 (or similar) synchronous 3,500 watt unit for the level of power required to run an A/C. At that load the noise is not appreciably different. Having a "pure" sine wave for the A/C is not needed either.
Video 1 Video 2
