AC / Supco assistance needed
I'm hoping the AC experts can weigh in here. I'd read a lot about the Supco Spp6e and how much it can help with a smaller generator, so I ordered one up. Climbed on the roof yesterday to do the ins...
Forum Discussion
j-d wrote:Agreed, LRA is supposed to be the current at just the point of stopping the compressor--worst case scenario. However, after making inrush current measurements on a number of a/c units with my inrush-capable, Mastech MS2108 clamp-on meter, I've found the startup/inrush readings with this meter have consistently been very close to the LRA. I'm sure these inrush readings would vary widely from one make/model of clamp-on to another; however, for comparison purposes (when using the same meter) the readings are definitely helpful in determining whether your hard-start kit is actually working or not. Or, whether the inrush current of a given a/c will exceed the inrush capability of a previously tested generator.
I don't know, can only wonder, if an A/C requires the full LRA current on startup. Maybe it does. Or, is LRA only a troubleshooting aid to determine if the compressor is actually stuck?
. . .
FWIW, through quite a bit of testing over the last 6 months (using this same meter) I've determined the inrush threshold for successfully starting various a/c units with one/two EU2000i's, an EU3000i, and Champion 3100 (75531i) with the ECO mode, both on and off. Surprisingly, I've found the Champion 3100 is able to supply more inrush current than a paralleled pair of EU2000i's (both compared with ECO mode on and off).
