At my job, we have a rewards program that allows employees to earn a little extra money. So over performance year I was able to earn an extra $250. Unfortunately, it can't be redeemed for cash; it has to be redeemed for a gift card. So I am going to redeem it for an Amazon gift card and I would like to buy a compressor and hard mount it behind the trim panel in the rear like slomatt from UltimateYota did:
UltimateYota.com - On board air with a MV-50..
I did some more research and I am between two compressors, the Viair 400H and the Viair 400C.
I was also able to find that the 400H has a built in power switch and is simply wired with a 12V+ wire (with inline fuse) that goes to the battery and a ground wire. However, the problem is that I still want to mount the compressor out of sight and use a Contura II switch that is mounted by the dash to control the ON/OFF function. I am also planning on running a sealed air hose and will need a pressure switch. The good news is that Viair actually sells a relay with a built in pressure switch which is really cool!
VIAIR Corporation - Pressure Switch with Relay
So after looking at some of Viair's wiring diagrams, here is what I came up with. Keep in mind that this is just an electrical wiring diagram:
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So my question is, will this setup work?
I found the 400C, that does not have a built in power switch and as far as I can tell, that is the only difference between the two models. Viair's website does say that the 400C is designed to fill a tank for an OBA system, while the 400H is designed to fill tires. But, is there really a difference or do you think I can use the 400C to fill my tires?
Ultimately, I think the 400C would be a better setup because it is a little smaller and it doesn't have the built in power switch which leaves me the option to use my own. I would wire it up the exact same way that is pictured above. The only problem is that I don't know if it will work for just inflating tires.
For reference, here are links to the two different models:
400H -
VIAIR Corporation - 400H Part No. 40042
400C -
VIAIR Corporation - 400C Part No. 40040