I didn't think my original question would create so many speculative
answers! SO, I decided to trust noone and just measure what is coming into
one of the panels. There are four BIG wires feeding the panel that I
uncovered. One wire is Ground (neutral). The other three are each at 120v
(almost exactly) from ground. Between any two of these three I measure ---
you guessed it --- 208v.
So, back to my original question which was; what does the group think about
running a compressor rated for 230 on 208. Unfortunately, Ingersoll-Rand
says no. Campbell Hausfield says no. Sears (FWIW) says no. Someone suggested
looking at the motor plates. Last time I was at Loews I looked at the motor
plates on the compressor they were selling (don't remember brand) and it
said 230, not 208-230.
So, I am now down to American IMC(Bel Aire) and Northstar (Northern Tool's
brand?), which are specifically rated at 208 to 230. Anyone have experience
with either of these? Efficiency is very important, since up here at 9000'
we are already down by over 25%. I currently have an Emglo rated at about
13cfm delivered at 90psi and when run an 8 or 9 cfm tool the compressor runs
continuously and pressure still drops!
Kim
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