220 to 110?

[bisley45]

Hey Guys I just got a really good deal on a Grizzly HP air compressor. My ? for all of you is it possible to rewire the motor for 110 instead of 220 I have no 220 in my garage. or should I just get a 220 line put in. the house is not mine so I don't really want to spend the money on that. thanks for the help

 

[Just_George]

Depends on the size of the motor...some can be switched, some can't. For the most part, anything above 2hp usually can't be switched. The data plate on the motor will tell you - look for the voltage rating, if it's listed as 115/230, it can be switched. If you see only one number, you're outta luck and will have to run a 220 line. Then again, having 220 is nice and opens up lots of other possibilities!

 

[wedge40]

skip the compressor. You dont have 220, and I'd wouldn't spend my money on improving a rental property unless I plan to purchase the property at a later date.

 

[Givl Reggin]

If you have 2 circuits already serving the garage and they are different phases you can add a 240v receptacle without much effort... you'll limit what you can run on 120v at the same time the compressor is running, but the compressor has a short run time anyway.

 

[zkling]

How many HP is a Grizzly HP? JK man, what size (HP and amp draw) motor does the compressor have? Most smallish (<60gal) compressors can be wired for 110 or 220v. Just have to watch the amp draw on the 110v side.

Post some pics and or more specs and we can advise you from there

 

[Givl Reggin]

Here's a "plug-and-play" solution for getting 240v from (2) 120v receptacles...
http://www.quick220.com/220_catalog/voltage-converters.html

 

[woody 73]

Let me see if this will work:

Matthias sure makes it look easy maybe this will help you out; the way he gets from 120 to 240 volt.

 

[bisley45]

How many HP is a Grizzly HP? JK man, what size (HP and amp draw) motor does the compressor have? Most smallish (<60gal) compressors can be wired for 110 or 220v. Just have to watch the amp draw on the 110v side.

Post some pics and or more specs and we can advise you from there

Now were did that 3 hp go lol. dont know the draw it has no motor tag at all.

 

[zkling]

Post some pics of it. What brand and size of compressor is it?

 

[bisley45]

its a 3 hp grizzly compressor it has no wiring data plate for the motor at all.

 

[woody 73]

Do any of these look like your 3 HP motor?

http://www.grizzly.com/search/search?q=motors&cachebuster=6071129739505357&pagesize=96&page=1

 

[bisley45]

Here is what mine looks like I am purty sure it is 220 only.

 

[woody 73]

You would think they would have some nameplate on that motor, try giving them a call on Monday morning at 1-800-523-4777 even sending a picture to them will help you out.

Try looking for anything with either a model # or serial # on your air compressor the folks at grizzly can look it up on their large data system and tell you more about that motor.

 

[kenfain]

Might be just as easy, if your service panel is in the garage, like so many are, to just run 220. It's not any more trouble, than what you're trying to do. The expense is not significant either. Provided your putting the compressor near the panel. Rewiring the motor is IMHO more difficult to do. Or to put it another way easier to mess up.

 

[zkling]

Agree with the suggestion on calling grizzly. That is kind of a strange motor to put on a compressor. Have you opened the cover on that top black box? There may be a diagram on the underside of that lid. I would assume the longer portions house caps?

 

[bisley45]

Re: 220 to 110? w/ update

Well guys and gals I got the 220 line put in the garage and the compressor is alive. Know I have another problem ( most likely why I got it so cheep) the compressor runs fine and builds pressure fast all the way up to 35-40 psi and stops building. It still runs but no pressure gain at all. I have checked for leeks and there are none. I checked the intake filter and looks good but I noticed that it did not have much suction at the intake.and when you set your hand on top of the cylinder head it feels like there is air blowing out the top of it. so I am thinking the head gaskets are bad what do you all think. thanks for any help. BTW I have ordered the gaskets from Grizzly there techs said that was most likely the problem..

 

[bisley45]

anyone?

 

[kenfain]

Sounds reasonable. But have you trial using a soap solution in a spray bottle to find the leak?

 

[James_B]

I'd be looking at the reed valves.

About 8 or so years ago, I had a small (2.5HP) direct drive compressor. One day the compressor note changed and it refused to go past 25 psi.

My analysis of the problem hinted that it was most likely a damaged reed valve, so I pulled the head off.

When I removed the reed valve plate that was sandwiched between the head and the cylinder barrel, I discovered that both screws that held the horseshoe shaped outlet reed valve assembly to the valve plate had come out, and the reed valve was loose in the outlet head chamber.

A bit of Loctite on the threads and back into the valve plate they went. Four bolts to re-attach the head, one nut to connect the air line, switch it on, and all was good.