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Old 04-08-2015, 11:27 AM   #1
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Replacing junk Wyco converter: Wiring ?

So my Wyco 55a converter has the problem that most have and it won't go into boost mode. Even with a pair of 6v GC2 batteries. Even if it did work properly I would like higher than 14.4v for charging.

My 2014 FR Stealth has the converter just below the fridge so probably 12 - 13 feet from the batteries (including slack). My converter has 6awg wire going to the batteries. The ground has a few inches of 6awg connecting to a ground block just behind the converter. The ground block attaches to the frame. The battery also has a 6awg ground cable that attaches to the frame. The positive wire is 6awg that goes directly to the battery (there might be an in-line 30a re-settable breaker close to the battery)

I plan to install either a PD, Iota, Powermax or Xantrex converter/charger (haven't decided yet). The new converter will be either a 55a or 60a unit. Am I fine using these with my stock wiring? I really don't want to run new wires. I do plan to clean up the frame paint under the grounds.

Thanks.



probably doesn't matter but I have the factory 4000w Onan generator and 160w Go Power solar with 30a charge controller.
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Old 04-08-2015, 12:13 PM   #2
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deep cycle batteries have fewer and thicker plates. they do this so they are better adapted to smaller current flows in or out compared to automotive style batteries. thats why 14.4 volts aside from an equalization charge.
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Old 04-08-2015, 12:23 PM   #3
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Go with the progressive dynamics.
6 awg will be fine.
I went with the 9200 series 70 amp from a 55 amp wfco


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Old 04-08-2015, 01:30 PM   #4
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you got 6 gauge to the batteries? bump to 50 amp breaker.
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Old 04-08-2015, 01:31 PM   #5
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Thanks for the replies.

Rethinking this and looking at the Interstate battery specs they want 14.4v for bulk charging. The crazy part is they want 15.3v for absorption. No converter charger can do this.

I think I'll get the PD 70amp unit so I can force it to 14.4v for fast bulk charging to 80% and then let my Blue Sky solar take over for the absorption at 15.3v. When in storage the Blue Sky will maintain the batteries.
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Old 04-08-2015, 01:52 PM   #6
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you got 6 gauge to the batteries? bump to 50 amp breaker.
I'll check but it probably is a 50a breaker. It's the one on the left in the photo. The one on the right is 30a for the solar charge controller.

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Old 04-08-2015, 02:02 PM   #7
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Go with the progressive dynamics.
6 awg will be fine.
I went with the 9200 series 70 amp from a 55 amp wfco


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Thanks Turbs. Does the 9200 PD unit install below the Wyco distribution unit. Is there enough room?
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Old 04-08-2015, 02:06 PM   #8
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Thanks Turbs. Does the 9200 PD unit install below the Wyco distribution unit. Is there enough room?
When I installed mine years ago I had to modify the wfco case a bit to get it to fit.
15 minutes.
I just replaced one for a friend a year ago and had to mod the case more then mine to fit his wfco case.
Dremel or die grinder worked with ease.
The lower back of the case needs opened up so the converter will slide all the way back into the housing.
With that being said, if room allows behind your distribution center I'd mount it outside of the distribution center and mount it on the floor behind.
You "may" have to buy longer cables from distribution center to converter but the converter would remain cooler outside of the case.

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Old 04-08-2015, 02:51 PM   #9
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With that being said, if room allows behind your distribution center I'd mount it outside of the distribution center and mount it on the floor behind.
Some camper installations now have the breaker/fuse panel and converter as separate units so no issue doing that.

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Old 04-08-2015, 02:51 PM   #10
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Some camper installations now have the breaker/fuse panel and converter as separate units.

Dave
True. He may find his seperate all ready.

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