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General Discussion of preventative/corrective maintenance and other technical issues regarding your coach that are not covered in other Mechanic's Corner categories (ex. refrigerators, water heaters, and compressors).

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Old 07-06-2019
CaptPegLeg CaptPegLeg is offline
Senior Member
Join Date: Jun 2013
Location: Kitty Hawk
Posts: 911
Default AC Air Compressor

I feel like replacing my AC air compressor is in my future and I have a couple of questions.
1. I’m thinking that a DC compressor would serve me better. Is there a general preference for AC or DC?
2. The answers to the first question may answer this one. Why did Bluebird use AC air compressors originally?

Bob Sumners
1993 WB
1983 PT35 Sold
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Old 07-07-2019
al perna al perna is offline
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Join Date: Oct 2009
Location: ormond fla
Posts: 2,366

Bob, Others must still be sleeping I use the AC to fill the air bags in the morning so I would not run the coach so long prior to leaving a campground . Also it is a good back up in case the DC one is not working . You know BB you can never have to many back ups

2000 LXI Single Slide (sold)
1999 Prevost Vantare 45

Ormond Beach, Florida
386 290 3444
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Old 07-07-2019
markkitch markkitch is offline
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Join Date: Jun 2016
Location: Athens
Posts: 319

I can contribute, I had the same preponderance. I bought a DC compressor, then (after the fact AND why I have a barn) I realized the DC compressor pulls 18 Amps. It would require all new heavier wiring and that's a lot of inefficiency. I still have the DC compressor if your interested, brand new (threw the box away), never been powered up.

AC compressor is more efficient and you can go with the quite version https://www.walmart.com/ip/Californi...ssor/539050176 I have been happy with this one. There are quite a few threads on this subject on the WOG.

mark kitchens
Athens, Tx
1995 WB42
C: 214 477 3757
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Old 07-07-2019
nbedinger's Avatar
nbedinger nbedinger is offline
Goat rails in the sunset
Join Date: Jul 2012
Location: Freewheelin'
Posts: 1,815

+1 vote for the wire size reasoning.

I went the other way, DC compressor installed with a 120V-->13.2V 60A Intellipower converter. Plug into an AC outlet in the basement, keeping the run of 12V wiring short.

The idea of AC-to-DC converters is compelling when buying wire for bus electrics. This is the only one I have but I can think of lots of uses, and of course there are many ways to do it.
Ned Bedinger
1991 SP36
BB Body No. 93327
Full-time in 2019
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