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Disconnecting OEM RV/Trailer Power System
To change your system from the OEM power system to the Yeti PRO 4000
system, you must first disconnect the existing batteries from the RV/Trailer
circuit.
1. Locate RV/Trailer batteries and disconnect the cables.
a. Disconnect the black Negative (-) ground cable from the Primary Battery
(RH).
b. Disconnect the black Negative (-) ground cable from the Secondary
Battery (LH).
c. Disconnect the red Positive (+) cable from the Primary Battery (RH), then
wrap insulation material around it.
d. Disconnect the red Positive (+) cable from the Secondary Battery (LH).
2. Once the RV/Trailer batteries are disconnected, locate and isolate the AC
TT-30 bulkhead outlet, or “Shore Power.” This will be easily located on the
outside of the trailer.
NOTE: Access to this outlet might be difficult to reach from the inside of the
trailer.
3. Locate the AC Breaker box. This can be traced from the shore power inlet or
may be marked like a home breaker panel.
4. The Flying Leads to Power+ Cable (SKU 98760) can be wired directly to the
AC TT-30 bulkhead outlet, or it can be connected to 30 A breaker terminals
(If connecting to the 30 A breaker terminals, be sure the 30 A breaker is not
supplying power to AC circuit).
NOTE: Flying Leads Cables are color-coded. Black is live, White is neutral,
and Green is ground. Match the wiring accordingly. The shore power
bulkhead pass through is the recommended terminal attachment.
5. Do not reconnect the RV/Trailer batteries. The Yeti PRO 4000 replaces the
OEM trailer power system.
Setting Up Power In
CONNECTING SHORE POWER TO THE YETI PRO
DRIVABLES RVVAN TOWABLES TRAILERS
Flying Leads to Power+ Cable
The Power+ Cable should be wired up to the TT-30 bulkhead. This allows your
Yeti PRO 4000 to recharge faster. This bulkhead plug would normally be wired
into the AC breaker box providing power across the breaker box to the AC circuit.
With the addition of the Power+ Cable, the 30-amp breaker can be removed and
the Power+ Cable can be wired directly to the TT-30 bulkhead. A 30-amp breaker
can still be used for added protection if separated from the AC TT-30 AC line that
will be wired into the AC circuit from the back of the Yeti PRO 4000.
REQUIRED TOOLS:
• Multimeter
• Wrench Set (Metric/Standard)
• Phillips-Head Screwdriver
• Flat Head Screwdriver
• Hex Key Wrench Set
• Wire Strippers
• Zip Ties
REQUIRED HARDWARE:
• Yeti PRO 4000
• Flying Leads to Power+ Cable (SKU 98760)
INSTALLATION:
1. Refer to the steps listed in the “Disconnecting OEM RV/Trailer Power
System” section (Page 4).
2. Locate the AC Breaker box. This can be traced from the shore power inlet.
3. Connect directly to the trailer bulkhead. This may be a TT-30 but can also be
an L5-30 or other manufacturer-preferred bulkhead to connect shore power.
4. The Flying Leads to Power+ Cable can be connected to the shore power