5
13. The extension harnesses are provided with one non-plugged end and a loose connector housing.
Verify the polarity of the cable to the panel and charge controller prior to routing the wire. Plan your
route and route the wiring starting with the non-plugged end.
14. Route the extension harness down the front or back of the trailer and through any existing conduits if
possible.
a. Add grommets to holes in frame or skins as needed to protect wiring.
b. Route towards the battery box or connections to the batteries to be charged using existing cables.
15. Verify that any existing cables used meet or exceed the wire gauge of the wiring supplied with the
solar panels.
a. Do not route the cable next to any heat sources or any sharp edges without adequate clearance or
additional cable protection.
b. If the cables are routed through new or existing holes in metal structures, grommets (installer
provided) must be used to protect the cables.
16. Secure the charge controller near the batteries or adjacent to the existing two pole front of trailer
connection points using mechanical fasteners
(Figure 8)
.
Figure 8
17. Once the wiring is in place, take the loose connector end provided and plug the black wire into
position “A” and the white wire into position “B”.
a. Pull back slightly on the wire after hearing a “click” to make sure the terminal is properly seated.
b. Fold the retainer clip onto the back of the connector until you hear a “click”. Make sure the retainer
clip is secured.
18. Connect the extension harness to the charge controller.
19. Connect the battery terminal harness to the charge controller and route the white/red wire to the
positive terminal on the battery or to the two pole connection location. If existing wiring is to be utilized
it must meet or exceed the 12 AWG wire gauge of the wiring supplied with the solar panels.
NOTE: If the existing wiring quality or gauge is in question, add additional new solar panel
extension cables as needed and route the panel wiring to the battery box location and install the
charge controller and battery harness at the battery box location as seen in Figure 7.
20. Attach the black wire to the negative ground of the battery or to a common ground stud or terminal.
21. Install fuse in solar wire harness.
