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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