Jayco TERRAIN 2023 - Section 6: Electrical System; The Electrical System; Testing the Campsite Power Connection

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The Electrical System
The RV electrical system is comprised of the following:
 12-volt DC power
 48-volt DC power – Air Conditioner and Invertor/Charger
 120-volt 60hz AC power – Heat/Water Hater and GFCI Receptacles
All installations have been made in compliance with industry standards applicable on the
date of manufacture. Because the electrical equipment and associated circuitry are engi-
neered into a dedicated system specic to your RV, do not make unauthorized changes or
add xed appliances to it.         

Service and/or modication of the electrical system should only be performed by qualied
electrical technicians using approved materials, components, and methods meeting current
safety and code requirements. Consult your dealer’s service department for assistance.
To read more about the various components incorporated into the RV electrical system,
please refer to the information contained in your manufacturer documentation.
Consult the Chassis Guide for information pertaining to the chassis drivetrain electrical sys-
tem.
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Before working on the electrical system:
 There are two (2) DC disconnect switches installed for the rooftop solar array. One
is located on top of the roof and one is located on the interior of the unit. Although
the one located on the roof is designated for emergency use, a secondary has been
added to the interior for customer convenience. Turning the switch o will discon-
nect power from the solar array.
 Using Inverter Remote Switch, turn o the inverter.
 Disconnect the shore power cord.
 Turn o the battery disconnect switch.
 Turn o the 120V main circuit breaker.
 Turn o lithium battery. The Battery Self-Lock Switch is located under an access
panel in the passenger sofa/bed base.
Testing the Campsite Power Connection

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Campsite 120-volt power receptacles can be tested using a digital multimeter or a dedicated
circuit analyzer. Dedicated circuit analyzers plug directly into the campsite power receptacle
and minimally test for open neutral, open ground, and correct polarity.
Use caution when using metal tools. If a tool contacts a battery terminal or
metal connected to it, a short circuit could occur which could cause personal
injury, explosion or re.
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