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Old 10-28-2013, 03:40 PM   #1
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Trimetic 2025-RV install on 31.5FBHS

Hello,

I picked up my 2014 31.5FBHS a month or so ago and want a good way to monitor my batteries. Has anyone installed a trimetric 2025-RV on a 31.5FBHS?

Where did you mount the shunt? I can see under the counters where the battery cables go under the floor, I would assume they pass under the walk way by the door into the cabinet that houses the converter?

Does anyone have a detailed wiring diagram for this model?

Thank you,
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Old 10-28-2013, 09:55 PM   #2
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I don't have a 31.5FBHS FW, but I did install the TriMetric a couple of years ago in my TT. here is my installation and may give you some ideas:

https://www.jaycoowners.com/showthrea...c+installation

Bob
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2016 GM 2500HD 6.0L/4.10
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1999 Jayco Eagle 246FB (retired)
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Old 12-04-2013, 12:09 PM   #3
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I ended up installing the shunt in the battery box. The low voltage design of this trailer is horrible.

Anyone notice the flaw in wiring? Amazingly this is how it was wired from the factory. The 6ga cable is horribly undersized and results in battery voltage of 13.2@45A during boost mode charging (~14.2v output from converter).

The flaw is there are connections to the positive wire between the battery and the cutoff switch. I am hoping the orange wire is for the break away switch but I am still getting +12 at the converter output wires even with the converter power off and the battery switch off so its feeding back at some point. Terrible and dangerous design!

I am going to start looking into replacing the 6gauge thhn cable with some high quality 2ga welding cable. At least between the converter and the battery. And possibly some 4ga between the converter and the RF switching box (not sure what to call it, it allows the jacks and slides to work on remote control).

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Old 12-04-2013, 12:11 PM   #4
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Has anyone removed the underbelly to access the wiring on a later model 5th wheel?

How easy is the wiring to get to?
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Old 12-04-2013, 01:39 PM   #5
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If it will help, contact Jayco (have FW VIN handy) and they will e-mail you the wiring schematic for your FW..... good to have anyways. If they decline on sending you the data, it may be because your FW is still under warranty.

Bob
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2005 Jayco Eagle 278FBS (retired)
1999 Jayco Eagle 246FB (retired)
Reese HP Dual Cam (integrated sway control)
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