A Forum run by Enthusiasts of MidNite Solar

General Category => General Discussion => Topic started by: SgtPepper on January 31, 2014, 01:25:10 PM

Title: Classic 150 lite outside...
Post by: SgtPepper on January 31, 2014, 01:25:10 PM
 I want to mount my classic lite outside within a large veranda area which is completely dry all of the time.
Will the outside elements be detrimental to the unit?
I was considering making a cover to go over it. I'd still have to put in vents so was wondering if a cover is even necessary?

Title: Re: Classic 150 lite outside...
Post by: Westbranch on January 31, 2014, 01:34:58 PM
Electronic goods like a clean environment...  I would build a solid, plywood?,  enclosure with screens to minimize the dust and bugs....
Title: Re: Classic 150 lite outside...
Post by: Vic on January 31, 2014, 02:00:45 PM
Hi Sgt.,

Humidity,  dust,   and high ambient temperatures all can have a negative effect on electronic items.

CCs do a lot of work,  and need cool temperatures.  From the name of your city,  seems like it could be humid.  And at times humid air can collect under soffits,  veranda etc.

If there was a close indoor space,  that was not a frequently inhabited room,  that might be better.  Power electronics DO make some noise,  so trying to avoid hot rooms,  and those where humans spend much time would be nice.

Nothing needs to be perfect,   just do your best.   Opinions,   Good Luck with the installation.    Vic
Title: Re: Classic 150 lite outside...
Post by: TomW on January 31, 2014, 02:20:33 PM
I think the Classics come with a vent cover to close it up along with some screened plugs for the knockouts.

Not sure what ambient temperatures it can handle? Closing  up the vent will derate it for power handling.

Just from memory.

Tom
Title: Re: Classic 150 lite outside...
Post by: TomW on January 31, 2014, 02:29:03 PM
Manual says the Classic is rated -40c to 40c and the current capacity seems to be derated by 10% or so at the upper temperature limit. Does not mention humidity but I think they put a decent conformal coating on them so humidity might or might not affect it much but humid air cannot pull off heat as well as dryer air.

Tom


Title: Re: Classic 150 lite outside...
Post by: SgtPepper on February 01, 2014, 08:08:25 PM
Cheers guys, got it sorted with a well vented box top and bottom that hinges open. I used the wire from our sieve for the vents.
Title: Re: Classic 150 lite outside...
Post by: Robin on February 01, 2014, 08:53:53 PM
send a picture.
Title: Re: Classic 150 lite outside...
Post by: SgtPepper on February 05, 2014, 02:40:07 AM
Threw out the box I built, thought it was a fire hazard being made from wood. I had an old aluminium flight case just the right size that I transformed into a housing for the Classic. I drilled 15mm holes all around the sides and bottom for venting. It works extremely well.

(http://i533.photobucket.com/albums/ee338/Raha-photo/3.jpg) (http://s533.photobucket.com/user/Raha-photo/media/3.jpg.html)

(http://i533.photobucket.com/albums/ee338/Raha-photo/2.jpg) (http://s533.photobucket.com/user/Raha-photo/media/2.jpg.html)
Title: Re: Classic 150 lite outside...
Post by: TomW on February 05, 2014, 06:46:49 AM
That looks like it will work!

Personally, I would screen the holes because there are lots of beasties around here that would find that case a snug little home and set up housekeeping. No fun opening a box to work on the system only to find some critter with lots of angry offspring with stingers living in it.

Good luck with it.

Tom
Title: Re: Classic 150 lite outside...
Post by: SgtPepper on February 05, 2014, 12:22:49 PM
Cheers Tom, yep I intend to screen the holes, just need to get hold of some wire mesh, i'll keep it monitored and clean until then.
Title: Re: Classic 150 lite outside...
Post by: Vic on February 05, 2014, 04:30:30 PM
Hi SgtPepper,

Looks nice and clean.

As Tom had noted earlier in this Thread,  ventilation is very important.

Keep a close eye on the Current Limiting,  and the Temps inside the Classic,  which shows the temps of the important Classic parts,  to the extent they are available for the Lite ...

Cool is good for electronics.   Looks nice!    Opinions,   Vic
Title: Re: Classic 150 lite outside...
Post by: zoneblue on February 05, 2014, 04:32:42 PM
Classics make quite a bit of heat. If the box was made of anything else, i might have said it would need a bit more ventilation, but yeah being alumunium should conduct heat away quite nicely. And hey it is outside... Very creative!
Title: Re: Classic 150 lite outside...
Post by: SgtPepper on February 05, 2014, 07:59:00 PM
Cheers guys, will keep an eye on temps Vic.

My thoughts also Zoneblue, the case itself becomes a part of the classic casing so will help to transfer the heat away. Don't we call it "Kiwi ingenuity." I just hope it works.