[RE-wrenches] Xantrex XW4548 noise problem

ryan ryan at solar4maine.com
Fri Jan 8 15:40:22 PST 2010


I have a customer that we installed a Xantrex XW4548 on a Midnite 
Epanel. He has 3kw of pv and 400ah of lead acid battery's. The issue is 
he feels the inverter is to noisy. The inverter is hung in a garage on a 
plywood wall that is 2 by 6 constructed with fiberglass and then drywall 
on the house side. The XW is fairly noisy a lot louder then the SW or 
SW+ series and a call to Xantrex got me a response that the transformer 
needs about 30 days of cycling to seat the windings and it will quite 
right down. So has any one else noticed the XW being extra loud? Has 
anyone noticed the XW quite down after 30 days? And if this noise is 
normal what would everyone recommend for a cushion to help keep the 
noise out of the house? I had thought of a sheet of 1 inch foam and then 
another layer of plywood but unsure if that would be worth the effort?



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