Jayco SENECA, Owner'S Manual

Page: 43 / 93

SECTION 5
ELECTRICAL SYSTEM - 50 AMP

Do not use a cheater plug, adapter or
extension cord to reconfigure incoming
AC power or to break the continuity of
the power cord grounding circuit.

Do not connect the power cord to an
outlet that is not grounded or adapt the
50 amp power cord plug to connect to a
receptacle for which it is not designed.

Do not remove the power cord
grounding terminal to allow connection
with a non-grounded receptacle.
Disabling the grounding circuit of the
shore power cord may create a shock
or electrocution hazard.

Do not connect the power cord to an
extension cord. Use of an extension
cord can cause overheating of the
extension cord and can create a low
voltage condition. Premature failure of
connected 120-volt AC powered
equipment may result.
It is the responsibility of the owner to ensure
that the electrical receptacle being used is
properly wired and grounded.
Reverse polarity and/or improper grounding of
the motor home can cause property damage,
personal injury or death. Failures due to
improperly wired and grounded electric
receptacles are not covered by the limited
warranty.
12-
VOLT
DC S
YSTEM
The majority of your motor home lighting is
powered by 12-volt electricity. The 12-volt DC
system is composed of components that will
operate when the following conditions are
met:
□ Power is supplied by the chassis
alternator when the chassis engine is
running.
□ The power converter will supply interior
12-volt DC power when the shore power
cord is plugged into a 120-volt external
power source. The converter will also
charge the house batteries in most
situations.
□ The house batteries power many interior
12-volt components including the lighting
fixtures, water pump, 12-volt motors, 12-
volt appliances, etc, when the motorhome
is not connected to a 120 volt power
source.
A
UXILIARY
S
TART
S
YSTEM
Your motor home is equipped with an
auxiliary start switch which can momentarily
connect both the house and chassis batteries
should the chassis battery become
discharged. To operate, depress the "Aux.
Start" switch (located on the front driver’s
dash) and hold it down. While the "Aux. Start"
switch is depressed use the ignition key to
start the chassis engine. Release the "Aux.
Start" switch after the engine has started.
12-V
OLT
B
ATTERY
D
ISCONNECT
The 12-volt battery disconnect switch is
located near the entrance door. This
momentary switch controls a latching type
solenoid (located near the house batteries),
which connects or disconnects the house
batteries dependent upon the number of times
it is pushed. When engaged the battery
disconnect solenoid supplies battery power to
all accessories connected to the house 12-
volt fuse panel.
The battery disconnect feature should be
used to disconnect the motor home from
house battery power during periods of storage
or during maintenance. The solenoid must be
engaged for the 12-volt house electrical
system to operate.
Never depress the momentary battery
disconnect switch for longer than 1 second.
Depressing and holding the switch down will
disable the battery disconnect solenoid.
Should this occur the main ground cable for
the house batteries must be removed for 1
minute to re-enable the solenoid operation.
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