12-Volt Fuse Panel; Battery Isolator For Your Tow Vehicle (Customer Supplied) - Jayco 2015 Jay Flight DST Owner's Manual

SECTION 6 – ELECTRICAL SYSTEM
When voltage drops below those levels, permanent damage may occur. Typically,
a deep cycle battery has an amp-hour rating of 75-100 amps.
If you run the furnace and refrigerator simultaneously, you will be using
approximately (12.0 + 3.0) 15.0 amps per hour. This does not include any 12-volt
lights, water pump or any other 12-volt component.
If the furnace and refrigerator in the above example operated constantly,
a 75 amp-hour battery would become fully discharged in 5 hours (75ah /
15a = 5h).
The auxiliary battery should be installed in parallel with the battery in your tow
vehicle. When the 7-way trailer plug is connected, both batteries power the RV so
it is important not to discharge your tow vehicle battery below the level required to
start the engine. To prevent this from occurring, disconnect the 7-way trailer plug
or install a battery isolator. When the tow vehicle engine is operating with the RV
connected, the tow vehicle charging system will charge both batteries.
Replacement and maintenance
Some equipment in your RV will draw small amounts of current even when turned
OFF. To prevent the auxiliary battery from being discharged when your RV is not
connected to shore line power, disconnect the auxiliary battery negative cable at
the battery. During storage, it is important to check the voltage monthly and
recharge the auxiliary battery as needed. If you remove the auxiliary battery from
your RV, store it in a dry, cool area per the manufacturer's instructions.
When it is time to replace the auxiliary battery, replace it with a Group 27 deep
cycle battery only. Contact the battery manufacturer for further information. Do not
reverse the positive and negative battery cables (doing so will blow the reverse
polarity fuse(s) that protect the converter).
B I
ATTERY SOLATOR
You may want to consider the installation of a battery isolator on your tow vehicle
as a convenience feature:
□
It receives current from the tow vehicle alternator and controls distribution of
energy to both the RV auxiliary battery and the tow vehicle battery.
□
It serves as a check valve to prevent energy from being drawn from your tow
vehicle chassis battery (so you can start your tow vehicle engine).
Your dealer can assist you with the selection, purchase and installation of this
aftermarket part.
12- F P
VOLT USE
The 12-volt fuse panel is labeled to indicate fuse sizes, positions and the
components powered. At the beginning of camping season, inspect all the 12-volt
fuses and replace as needed.
Replacing a fuse
Before replacing a fuse, always turn off electrical component(s) protected by it.
1. Disconnect the shore power cord.
2. Disconnect the RV auxiliary battery main negative battery cable.
3. Remove the fuse panel cover to check fuses.
4. Pull the fuse straight out of the fuse block. If the fuse is not blown, something
else must be causing the problem. Please contact your dealer for further
assistance.
6-4
F Y T
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OW EHICLE USTOMER
JAYCO TOWABLE
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UPPLIED