[sdiy] soldering with air conditioner?

[Stewart Pye]

Hi Dan,

You could check the MSDS for the solder that you use. The MSDS for lead 
based solder I use said something like, "fumes may irritate" but didn't 
indicate any possible long term effects (not to say that there aren't 
any), and people on other forums who know about chemicals say that the 
fumes aren't too bad. AFAIK contact through the skin is the main 
problem, and if you're sweating like a pig a lot more will get through 
your skin. I'm not sure about the fumes from lead free solder.

Still, if possible I'd use a 200mm flexible duct with a 200mm fan on the 
end of it. You can hang the end of it with a piece of wire so it sits 
over your PCB.

Regards,
Stewart.



Dan Snazelle wrote:
> i meant i would turn it off while i solder and open a big big hole in the seal
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>> Date: Tue, 26 May 2009 10:38:47 -0700
>> Subject: RE: [sdiy] soldering with air conditioner?
>> From: blincoln at eventualdecline.com
>> To: synth-diy at dropmix.xs4all.nl
>>
>> Without seeing the actual unit it's hard to say, but that may actually
>> drop the efficiency of the air conditioner considerably. AFAIK the reason
>> there is a seal is to maintain the one-way flow of hot and cold air, IE to
>> avoid recirculating the hot air back through the AC unit again.
>>
>> I visited a remote location at work where there was a heat problem in the
>> server room. Someone had stuck a free-standing AC unit inside, without an
>> external exhaust, thinking "it makes cold air", without realizing that (as
>> previously explained) it does that by making the interior cold at the
>> expense of putting out hotter air somewhere else. So of course by not
>> having external exhaust, they were actually making the server room even
>> hotter than without the AC unit.
>>
>> I'm no expert on the subject, but I suspect one of two things will result:
>>
>> 1 - If opening the seals lets solder fumes exhaust from the room, then
>> you're probably decreasing the effectiveness of the AC unit so much that
>> you should just use a fan instead.
>> 2 - If the effectiveness *isn't* decreased considerably, then you're
>> probably not exhausting a significant amount of the solder fumes, so you
>> should use a fan instead.
>>
>> :)
>>
>> If the window is all you've got to work with, I think it's going to be
>> hard to effectively cool the room *and* provide exhaust for an AC unit.
>> The first thing that comes to mind is some ductwork to separate the intake
>> of a fan and the exhaust of the AC, but that's probably more work than
>> you're looking to do.
>>
>> Ideally I think you'd want the AC (or just an intake fan) on one side of
>> the room blowing cold air in, and an exhaust fan on the other side, but
>> again it doesn't sound like that's an option.
>>
>> On Tue, May 26, 2009 9:41 am, Dan Snazelle wrote:
>>     
>>> oh i meant open the vents that are on the sides of the window...not the
>>> vents on the AC itself....
>>>
>>> most AC's have little plastic vents you have to pull across your
>>> windowsill to make a SEAL..by pulling these back you open up part of your
>>> window to the outside world
>>>       
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