[RE-wrenches] ] Dusty off -grid conditions

[William Miller]

Friends:

Thanks for the input on this topic.  A few thoughts:

1. I could change the design from a vented 8k Radian to 4 sealed FX
inverters.  However the Outback charge controllers will still be vented.
This makes me think the best plan is an actively vented cabinet.  This
cabinet has a fan with filtration:
http://millersolar.com/MillerSolar/Portfolio/Commercial/Cal_Trans/Pase_2/Phase_B_Caboinet_2.jpg

2. We have tried in vain to keep rodents out of a building or even a room.
Our best successes are in critter-proofing as small a space as possible.
Attached is a photo of an Outback installation with screen wire to keep out
wood rats that destroyed the previous installation by urinating on the SW
circuit boards.

William



Lic 773985
millersolar.com
805-438-5600


-----Original Message-----
From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] On
Behalf Of Dana
Sent: Saturday, September 02, 2017 11:18 AM
To: 'RE-wrenches'
Subject: [RE-wrenches] ] Dusty off -grid conditions

I did a system in costal Costa Rica right after Y2K flopped with equipment
previously  installed for the same in Colorado.
Despite a concrete building with screened windows we had geckos galore
getting into the Trace SW4024 inverters. As the geckos got fried & died they
turned acidic on the circuit boards creating an even bigger problem for the
electronics.
I would suggest sealed conditioned building or marine or totally sealed
equipment.

----------------------------------------------------------------------------
Dana Orzel                       Great Solar Works, Inc.
208.721.7003                       dana at solarwork.com
Idaho Contractor - # 028765          Idaho PV # 028374
NABCEP # 051112-136                       www.solarwork.biz
"Responsible Technologies for Responsible People since 1988"
 Please consider the environment before printing this email.


-----Original Message-----
From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] On
Behalf Of Jay
Sent: Friday, September 01, 2017 6:04 PM
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
Subject: Re: [RE-wrenches] Dusty off -grid conditions

Hi William

Sounds like Baja.

With such limited details, I'd consider conditioned space via AC unit.
It would keep the batteries cool, inverter, CC, and ancillary units dust
free. Then you can use the equipment you want.

But if that isn't an option, the XW series has a much better design for
dust. The fan doesn't blow across the power electrics, but behind it over
the transformer and FET heat sink.

Jay

Peltz power.


> On Sep 1, 2017, at 11:41 AM, William Miller <william at millersolar.com>
> wrote:
>
> Friends:
>
> I am designing an off-grid system that will be in a pretty dusty
> environment. The inverter was going to be a Radian 8 K.
>
> Have any of you successfully mitigated dust problems with design features?
>
> What inverters might someone suggest?  Sealed units?  The environment is
> also hot.
>
> Thanks in advance.
>
> William Miller
> _________________
>
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