The (newer) SW5548 was harder on over current protection, mainly because
it could put out more current than the SW4048...
One trick to try is to place a long(ish) extension cord between the SW
and the load to give it a wee bit of series resistance.
Doing this would often reduce that OCP and help motors to start.
boB
On 5/30/2016 11:03 AM, Dan Fink wrote:
Does your air compressor have an unloader valve, or can you install one?
That should do the trick, sounds like you are just running into the
regular high surge current demand.
Off the grid, compressors are in about the same nasty league as old
well pumps as far as surge demand.
Dan Fink
Adjunct Professor of Solar Energy Technology, Ecotech Institute
IREC Certified Instructor™ for:
~ PV Installation Professional
~ Small Wind Installer
Executive Director, Buckville Energy
NABCEP Registered Continuing Education Providers™
970.672.4342 <tel:970.672.4342>
On Mon, May 30, 2016 at 10:46 AM, Jeremy Rodriguez
<allsolarjer...@msn.com <mailto:allsolarjer...@msn.com>> wrote:
Hello
I've got an SW+5548 that will barley start my air compressor. Once
it does run it shows 17 Amps on the inverters loads meter. During
start up it reads 60+ amps.
Do you think better capacitors would help the situation?
BTW I've never ran the compressor off grid prior.
I even tried #8 from the Breaker to the pressure switch, about
9ft, with no benefit. The compressor will only start with the tank
completely empty.
Jeremy Rodriguez
Solar Installation And Design Expert
All Solar, Inc.
1463 M St
Penrose Colorado 81240
Sent by Jeremy's iPhone. Sorry for typos and shorthand!
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