What size are the vent holes and what size fan did you use?
1135709
The vent holes are 6" (2) top left, (1) bottom left, fan size i used a 410cfm which is a over kill. gd luck grownin
1545434
Two 8 inch holes on the very top (on the back half), two 6 inch holes on each side (top and bottom), and two 3 inch holes on the back (top and bottom). There are also two 10x5 veclro vents on each side, and one 13x5 on the back, placed at the bottom. Note that on the model i received, the holes are of exact size or smaller. I am having significant difficulty feeding a 6 inch of any of ridgid, semiridgid or flexible ducts; the manufacturer really should oversize them 1 inch.
331319
There are several sizes depending on the year and model of the unit, best way to be sure is to take off the inside part of the ac and measure the hole
146807
What size fan is the NH-U12? I am using all 120mm fans though if that helps.
300972
i see that your tent is 48" Wide by 24" Deep by 60" thats a fairly decent size and unless you are using low watt led and or fluorescent you are going to need a bigger fan, at least for the exhaust youll need a 4" blower fan minimum, 6" preferred like this: http://www.amazon.com/VenTech-IF4-Inline-Duct-Fan/dp/B005KMOJPK/ref=sr_1_4?ie=UTF8&qid=1402989956&sr=8-4&keywords=4+duct+fan and you can use 1 or 2 of these small duct fans as intake.
57680
The top fan vent has screw holes for what appears to be both 120mm and 140mm.
105990
The measurements for the fan blade holes are: A - fan blade outer holes 3-15/16 in. width; B - fan blade outer hole to center hole 2-5/8 in. width; C - fan motor holes 2-1/16 in. width. Hole spacing diagram:http://www.homedepot.com/catalog/pdfImages/e7/e7d716a7-df33-46de-9e6e-3044db3b2424.pdfInstallation Guide:http://www.homedepot.com/catalog/pdfImages/e8/e8a9be1c-648f-4c6b-a5c1-3a3a4cd6da10.pdf
877553
My unit is 34 by 34 inches and it works fine. My fan opening is only 27" square and that's the important factor. There are stretch cords to keep it in place
1416707
13x2 is the size vent that I use my fan on. It doesn't quite cover the length but I covered the excess with a small piece of magnetic sheet (refrigerator magnet)
1748240
The front fan is a 120mm.Cooling System:Front: 1 x 120mm intake fan, 1 x 80mm fan slot Rear: 1 x 80mm fan slot or 1 x 92mm fan slot Side: Oversized vents
1127644
I have those same dimensions, though, in a big wooden box. It's overkill definitely but works really well. I have no ventilation issues at all. I did need to put two HUGE intake ports in though, as there is A LOT of negative pressure. Since you're using a tent you should make sure you can add more intakes if needed. Don't burn your fan out. And make sure you can support the sides of your tent because they will suck in like crazy.
313771
16 high, 24 wide and about 15 deep. Those are actual dimensions, so I'd add an inch to be able to let it vent.
241813
I cut a 16 in. dia. Hole to mount the exhaust fan. I have a block wall, once the circular hole was made I mounted the fan and then placed the louvers on the outside wall. Iam very happy withe the exhaust fan. I also used a rheostat to control the speed of the exhaust fan.
1261289
hole for vent needs to be 8" and the fan is centered over that hole with the metal flashing around the fan going under your roof shingles inside if you run duct use 8"round or 8" to 6" adapter
691837
I don't have the exact specs anymore. But, mine fit tightly in a standard small frame outdoor fan. had to jiggle some wires around to get it to fit well.
700988
They lined up with all the holes in all locations on my computer. I put in 4 of them. It has been long enough now that I don't remember the size of the fans I replaced.
1435500
There were a variety of holes on the fan motor so you chose the ones that fit your bracket -- don't know measurements as that fan is in our winter home in FL