9
6
WIRING
3. The solar panels come with a sealed pre-wired junction box with both positive and negative leads
having male and female Multi-contact (MC) connectors respectively. The polarity of the conductors is
marked as ‘+’ for the positive lead and ‘-’ for the negative lead. Do not connect the male and female MC
connectors from the same solar panel together as this will short the solar panel.
4. Connect the MC connector corresponding to the positive lead (marked as ‘+’) on the solar panel to the
suitable mating MC connector from the cable pair provided.It is advisable to identify this extension cable
as the positive lead using a sticker.Similarly connect the MC connector corresponding to the negative
lead (marked as ‘-’) to the suitable mating MC connector from the cable pair provided. As before,
identify this extension cable as the negative lead using a sticker.
5. The cable pair from the solar panel can be routed to the interior of the RV through the roof-top
refrigerator vent. Find where the refrigerator vent is located on the roof of the RV.
6. Select a suitable mounting location for the solar panel, preferably as close to the vent as possible. The
mounting surface should be strong enough to support the mounting hardware, the solar panel and
wind loads.
7. Take off the vent cover to gain access to the duct opening and keep the vent fastening hardware safely
as the vent cover will have to be replaced after the wire has been routed.
8. The wire from the solar panel can be routed by either:
A. Hole in the side of the vent: Drill a suitable hole in the side of the vent and insert a rubber grommet (not provided). Route the
cable pair carefully to the charge controller through the hole. Use appropriate sealant as recommended by your local RV dealer
to ensure the penetration at the side of the vent is watertight.
B.
Through the vent screen: Route the cable pair through the vent screen grid holes. Widen the screen grid holes if necessary.
9. Use the cable clamps with #8 self-tapping screws and tie wraps at regular intervals of the wire route
from the solar panel to the charge controller to hold the cables in place for a neat finish. Tuck any excess
wire under the refrigerator vent cover.
10. Replace the refrigerator vent cover and secure with the retained hardware.
11. Crimp the bare end of the cables with the fork terminals provided.
12. Insert the terminals into the appropriate terminal on the charge controller: positive PV lead is connected
to the positive terminal (marked “PV +”) of the charge controller and the negative PV lead is connected
to the negative terminal (marked “PV -”) of the charge controller.
Reverse polarity connection will
damage the Charge Controller and the resulting damage will not be covered by warranty.
solar
panel
refrigerator
vent cover
vent
screen
method B
method A
Fig. 6.2. Cable entry through RV Vent
Warning:
Avoid sharp, heated or abrasive material on the cable route.
