A/C in box problem: hot room, need bigger fan maybe?

[phattybudz]

I'm running 6 lights (only 4 are on right now because of the A/C problem,) in a 10x13 room with a 24,500 btu a/c.

Built a box from the DIY tutorial on here, and was trying to vent it with two 6'' vortexes, one pushing scrubbed air from the outside to the intake, and one sucking out the exhaust to my attic. The problem is the A/C gives me cool air for a while, and then gets warmer and warmer... right now I'm aircooling my lights with a 10'' vortex, but I am thinking about buying a 12'' double power one and running it at 50% (noise is another issue I have to fix, I need to soundproof a wall or two for sure,) and using my 10'' vortex to exhaust the air conditioner.

Does it sound like I need a bigger exhaust? Will a 10'' be big enough if so?

Thanks!

 

[cocktail frank]

your a/c is choking to death.
coils are freezing up and cant do their job due to the lack of airflow.
let her breathe, or fry the compressor.
its your call.

 

[Guest 18340]

cocktail frank is right dude. I went thru the same prob when I used a window unit the way you are.
http://www.icmag.com/ic/showthread.php?t=95491&highlight=ac+box
This will explain exactly what you have change.

 

[phattybudz]

So then I need a bigger fan on the exhaust side, or both? Should a 10'' on the exhaust and a 6'' on the intake be enough?

 

[Guest 18340]

Is your box covering the intake vents punched into the sides/top of your ac? Not the front of the unit, the vents on the sides.

 

[phattybudz]

Yep, I built it according to that thread...pretty sure I just need a bigger exhaust fan but not sure how big...

 

[phattybudz]

Bummmp?

 

[mrdizzle]

what did you end up doing bro

 

[ogatec]

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