Uplifter to trigger Viair compressor
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Freshman User
Joined: Jun 2015
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Uplifter to trigger Viair compressor
I’ve got a 2011 F-250 and want to install a Viair 450c to the frame. I’ll use it to fill 33” tires back up and to top off my airbags if I see they’re low. Since the compressor wont be hot all the time, I’d like to use an uplifter switch, which I’m adding myself, to turn it on. From what I can find online I’ll need to add a 40a relay as the factory relay on an uplifter is maxed at 25a. Is there a factory location that I can add a 40a relay to work in conjunction with an uplifter switch or is it going to be easier to find the switched wire from an uplifter and run a wire from there to the compressor and mount the relay there as it looks like it needs a pressure switch.
Scope Wizard
Joined: May 2019
Posts: 6,530
Likes: 25
I think you mean "UpFitter" Switch, and IF you need a 40 Amp Service then I would suggest you just use the UpFitter circuit as is to Drive the Relay of your choice with the appropriate Fused protection.
http://www.rafna.com/rafna/wp-conten.../FordSuper.pdf
http://www.rafna.com/rafna/wp-conten.../FordSuper.pdf
Moderator
Joined: Jan 2001
Posts: 57,023
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From: Virginia
Here's the 2011 upfitter wiring if it ends up being different than the above link.
https://madocumentupload.marketingas...8f2e7&v5=False
There is no factory wiring large enough to supply 40-50 amps to your compressor. You will have to come straight off one of the batteries and quickly put a circuit breaker or fuse in that line. I would run 8 gauge wire. Then you can run to your properly sized relay and like was mentioned, use the upfitter to trigger the relay.
https://madocumentupload.marketingas...8f2e7&v5=False
There is no factory wiring large enough to supply 40-50 amps to your compressor. You will have to come straight off one of the batteries and quickly put a circuit breaker or fuse in that line. I would run 8 gauge wire. Then you can run to your properly sized relay and like was mentioned, use the upfitter to trigger the relay.
Scope Wizard
Joined: May 2019
Posts: 6,530
Likes: 25
Here's the 2011 upfitter wiring if it ends up being different than the above link.
https://madocumentupload.marketingas...8f2e7&v5=False
There is no factory wiring large enough to supply 40-50 amps to your compressor. You will have to come straight off one of the batteries and quickly put a circuit breaker or fuse in that line. I would run 8 gauge wire. Then you can run to your properly sized relay and like was mentioned, use the upfitter to trigger the relay.
https://madocumentupload.marketingas...8f2e7&v5=False
There is no factory wiring large enough to supply 40-50 amps to your compressor. You will have to come straight off one of the batteries and quickly put a circuit breaker or fuse in that line. I would run 8 gauge wire. Then you can run to your properly sized relay and like was mentioned, use the upfitter to trigger the relay.
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