Victron dc-dc charger

rturnerpg

I will be installing a Victron Orion dc-dc charger in my 2023 T@B 400 BD with the lithium upgrade and the 3k wat Victron inverter/charger. I asked NuCamp customer service for a wiring diagram to plan out the installation but they said they couldn’t provide one. My plan is to route the positive and negative outputs from the dc-dc charger straight to the respective terminals. Just checking to see if there's any problem with that plan.

SLJ

I don't see a problem going straight to the battery terminals. Inverters need to. You will also need fuses. Victron has install manuals on-line for download: https://www.victronenergy.com/support-and-downloads/manuals

KK1L

I installed my Orion under the dinette bench. The red wire coming up out of the floor is from the 7-pin connector and runs to the distribution/fuse/charger panel under the stove area (to the same place as the battery is connected there). I spliced into the +12V and neutral. Works great and is an easy install.

Maple_Geek

@KK1L great diagram! I'm trying to do something similar in by 2022 TAB320S. 
How are the brakes getting power if the trailer gets disconnected from the TV in your case (i.e. emergency brake pin gets pulled out) ?

klenger

Maple_Geek said:

@KK1L great diagram! I'm trying to do something similar in by 2022 TAB320S. 
How are the brakes getting power if the trailer gets disconnected from the TV in your case (i.e. emergency brake pin gets pulled out) ?

I agree.  With the DC-DC converter connected as shown the brakes would have no power if the 7-way connector is not connected to the tow vehicle.  Moving the DC-DC converter to the other side of the terminal box would solve the problem because then the brakes would be connected to the battery side of the DC-DC converter.  This also shows why the battery switch should be ON when towing. 

KK1L

True! Thanks for pointing out that oversight.

KK1L

True. I should run the brake power to the c@mper battery side of the DC to DC. I have done that. It was a little involved to route the battery side of the DC-DC back out to the terminal block, but it is neatly doable. I chose to run the splice through the floor where the 7-way terminal block wires come up and then back out to terminal block. You have to pull down the black plastic corrugated camper bottom (a few screws) to fish the wire to the split loom to the terminal block to fish the wire in. You have to open the split loom and pull it from the terminal block housing. Patience will prevail. I removed the breakaway wire from the terminal block, snipped off the terminal ring, and spliced it to the wire from the battery side of the DC-DC. I will have to go back and take some pics. I have one of the terminal block layout BEFORE the wiring change and the updated Muttonchops schematic.