Compressor shed outside

[PoorOwner]

Hey I want to place the 80Gal compressor outside I plan to build a 3 sided enclosure e.g. 36"x36" With slanted roof with asphalt shingle tiles and maybe just have compressor legs on 4 paver stones.

But mainly wanted to ask for the electrical (10Awg for the 220V) it needs to be in EMT conduit for the portion going through the garage exterior wall, right?

And a copper pipe for the air coming in?

 

[RedBKM]

I have my compressor outside under a shed roof and it works great. What are your walls made of? That will determine how to protect your wiring. Most people use plastic conduit and an LB or pull ell.

I prefer liquid-tite outdoors because it won't rust and is, well, liquid tight. I would recommend installing a 120v receptacle nearby in case you ever buy an auto drain. Also, use a short length of rubber hose between your compressor and air line to isolate vibrations. It makes a huge difference. Copper air line is one choice but check out Rapid Air products.

 

[bernie123]

My compressor sits outside, roof, back wall is the shop and 2 solid side walls, front open. Been like that about 18 years ...

 

[Ilikeike]

The one I just installed outside our shop is wired inside to a 4s box with a galvanized electrical rated ****** going through the wall to a disconnect outside,then it changes to liquid tite flex to the compressor. If you don't want a disconnect just use a good rain tight box outside or an LB and go liquid tite from there.

Also used 3/4" rubber hose with crimped on fittings then connected to 3/4" copper line.

 

[CNGsaves]

OP . . . use a short segment of hydraulic hose to connect compressor to airline system. Tractor Supply has them very affordable . . . IIRC the 3/4" x 3 ft is $25 or the 1/2" x 3 ft was $18

Time to Update GJ Profile with City/State/Country as it will help you get best advice from fellow GJer's. Putting compressor outside in cold environment may not be best solution if water freezes in the auto drain lines. I'm just guessing that you're in warm environment.

 

[doojus]

The one I just installed outside our shop is wired inside to a 4s box with a galvanized electrical rated ****** going through the wall to a disconnect outside,then it changes to liquid tite flex to the compressor. If you don't want a disconnect just use a good rain tight box outside or an LB and go liquid tite from there.

Also used 3/4" rubber hose with crimped on fittings then connected to 3/4" copper line.

That is the same compressor I'm thinking about getting, but I don't think I have the heart to put such a nice compressor outside.

I'm guessing from your setup that means the outlet from the tank is 3/4" too? I was trying to find the specs for it but couldn't.

 

[Ilikeike]

That is the same compressor I'm thinking about getting, but I don't think I have the heart to put such a nice compressor outside.

I'm guessing from your setup that means the outlet from the tank is 3/4" too? I was trying to find the specs for it but couldn't.

It came with a 1/2", I took the 3/4" set up off the Ingersoll Rand compressor I replaced, I originally bought the fittings to upgrade the IR at Home depot, I think it's an 1 1/2" to 3/4" reducer bushing. I had a torch and a BIG pipe wrench with cheater ready,but it came right off,too easy, so I made sure to check and tighten all the other fittings.

The Trinco blast cabinet I bought required a 3/4" feed if the run was over 50' or somthing. And this set up feeds other shop equipment and some instrumentation that requires air 24/7 365 days a year, so a 3/4" main line was a good idea in my case.

The Champion came with plastic line for the auto tank drain,I didn't really care for that,and I thought it might get brittle since it does get some sunlight on it. I replaced it with some copper and epoxied a piece of PVC to the side to strap the line to, it flaps around pretty good if it's not secured.

The compressor is quiet,especially compared to the 5 hp two stage IR it replaced. I've been happy with it.

 

[Speedy!]

Glad I found this thread. I'm having a detached garage built and it was recommended to isolate the air compressor for noise abatement. However to have an external box was cost prohibitive, but they said they can do a closet in the garage and insulate that to cut down the noise.

I'm trying to determine the size to build this closet. I was thinking 36" x 36" but don't want to limit myself too much for compressor size. I mainly do mechanic work but "could" want to do some paint/body work one day. Am I wasting time building this closet? If not what size would you guys recommend? It will be in the back right corner of the garage if I do it.

 

[Cyberbear]

Don't forget, compressors need to breathe and stay as cool as possible for longer life. If you do not include provisions for proper ventilation, you can shorten it's working lifespan.

 

[Speedy!]

Yep, the closet will be vented to the outside top and bottom to create a cross draft.