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12-06-2014, 02:52 PM
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#1
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Senior Member
Join Date: Mar 2014
Location: Fremont, CA
Posts: 170
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Trimetric install
Here's the cables I'm looking at. The long cable is battery ground. The small, I believe is alternator, and the gray loom cable is negative for inverter. The batteries are connected by these small cables in parallel. The other pic.
Can I use the battery cable cut to fit negative battery and to shunt? Then , other 2 wires for other side of shunt? Thank You, Chris
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12-06-2014, 03:43 PM
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#2
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Senior Member
Join Date: Jul 2014
Posts: 35,444
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I need better pictures, I don`t see any batteries.
If you have a few 12 volt batteries, all the negitives go together. Then one neg. goes from them to one side of the shunt, with a short cable. Then the neg leeds that supply your house go to the other side of the shunt other side of tje shunt ( what ever used to be hooked to the neg terminal)
Be careful here, don`t want to burn things up
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12-06-2014, 05:23 PM
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#3
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Senior Member
Join Date: Dec 2013
Posts: 164
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An example - my batt box sans batts.
See the shunt? The shunt's top thick black wire is the neg load wire that is connected to the battery. Off the bottom of the shunt is a black wire connected to a black bus bar where all other neg trailer wires are connected.
The orange wire with a fuse is the pos input to the Trimetric. The small black and white wires off the shunt are the 2 other inputs to the Trimetric. The orange, small black and small white all come out of the gray sheath on the left bottom.
__________________
1998 Kit 23' TT, 210 AH, PM4B-45, RV-30S PWM, 280w solar, Trimetric, Wave 3, Samlex PST-150w
2004 Nissan Titan 4x4 with Tow, Hellwig helper springs, Banks Catback
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12-06-2014, 07:19 PM
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#4
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Senior Member
Join Date: Mar 2014
Location: Fremont, CA
Posts: 170
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Hey twinboat, the batteries are not in. I always remove them to charge at home.
I ran the wiring for the meter today and will mount the meter tomorrow.
On the negative post in the pic, is the negative inverter cable and battery ground. The small cable isn't being used.
Does just 1cable go from shunt to negative post, and take place of ground cable? And cable from inverter (load) go on other side? Chris
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12-06-2014, 07:29 PM
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#5
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Senior Member
Newmar Owners Club Nor'easters Club Appalachian Campers Ford Super Duty Owner Coastal Campers
Join Date: Dec 2007
Posts: 2,463
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The important thing is only the negative battery terminals go to one side of the shunt, all loads, inverter, chassis, alternator, go to the other side of the shunt. The shunt's job is to measure all current going in and out of the battery to any load or charging source, the inverter, house lights, alternator, converter etc, this is the only way it'll do that.
__________________
Stewart, Brenda and kids
2008 Newmar Canyon Star 3410, now at a new home
2006 Roadtrek Versatile 210
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12-06-2014, 07:31 PM
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#6
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Senior Member
Join Date: Mar 2014
Location: Fremont, CA
Posts: 170
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BendOr, thanks for your reply. You gotta lot of wiring in there.
The Kelvin terminals are no problem, my only issue is where I put the wires on either side of the shunt.
I know that the load (inverter ) goes on one side of the shunt. Just not sure on the battery side.
So, do I use a small cable from shunt to battery negative and be done with it? Or, do I still need a ground cable from all batteries to frame?? This is where I'm confused. Thanks, Chris
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12-06-2014, 07:39 PM
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#7
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Senior Member
Newmar Owners Club Nor'easters Club Appalachian Campers Ford Super Duty Owner Coastal Campers
Join Date: Dec 2007
Posts: 2,463
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Pictures sometimes help better, nothing other than the battery negative gets connected to one side of the shunt, chassis, inverter, etc get connected to the other:
__________________
Stewart, Brenda and kids
2008 Newmar Canyon Star 3410, now at a new home
2006 Roadtrek Versatile 210
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12-06-2014, 07:49 PM
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#8
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Senior Member
Join Date: Jul 2014
Posts: 35,444
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Yup, what Luv2go said. One wire from shunt to neg battery terminal, the rest go to the other side, including ground cable.
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12-06-2014, 09:08 PM
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#9
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Senior Member
National RV Owners Club Ford Super Duty Owner
Join Date: Sep 2010
Location: Horse Town USA, CA.
Posts: 3,784
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On the last page of the PDF of the installation manual is a very good example of the wiring with text boxes that explain the installation.
__________________
1999 35 ft. Dolphin 5350, F53, Banks System, 5 Stars Tune, Air Lift Air Bags, Koni Shocks, Blue OX TruCenter, TigerTrak track bars F&R, Roadmaster 1-3/4" rear auxiliary sway bar, 2004 F450 Lariat Pickup 6.0 Diesel Crew Cab DRW, 4X4, GVWR 15,000, Front GAWR 6,000, Rear GAWR 11,000, GCWR 26,000,1994 36ft Avion 5er, GVWR 13,700, 2,740 Pin Weight.
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12-06-2014, 10:12 PM
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#10
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Senior Member
Join Date: Mar 2014
Location: Fremont, CA
Posts: 170
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Great. I finally got it. The picture put it together. Thank You all. I will post the installed pics when I get it going 
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12-11-2014, 09:43 AM
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#11
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Junior Member
Join Date: Jan 2008
Posts: 2
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Is it OK to mount the shunt in the same compartment as the battery(ies), or is that a bad idea due to corrosive battery gasses.
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12-11-2014, 03:47 PM
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#12
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Senior Member
National RV Owners Club Ford Super Duty Owner
Join Date: Sep 2010
Location: Horse Town USA, CA.
Posts: 3,784
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That's where I mounted mine. Easiest place for connecting the battery cables.
__________________
1999 35 ft. Dolphin 5350, F53, Banks System, 5 Stars Tune, Air Lift Air Bags, Koni Shocks, Blue OX TruCenter, TigerTrak track bars F&R, Roadmaster 1-3/4" rear auxiliary sway bar, 2004 F450 Lariat Pickup 6.0 Diesel Crew Cab DRW, 4X4, GVWR 15,000, Front GAWR 6,000, Rear GAWR 11,000, GCWR 26,000,1994 36ft Avion 5er, GVWR 13,700, 2,740 Pin Weight.
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