Jayco 2009 Melbourne, Owner'S Manual, Page: 48 / 102

SECTION 6
ELECTRICAL SYSTEM – 30 AMP
44
GFCI R
ECEPTACLE
O
UTLET
Grounding is your personal protection from
electrical shock. Your RV has a ground fault
current interrupter (GFCI) receptacle outlet
engineered into the 120-volt AC electrical
system. It may have additional outlets wired
through, and protected by, the GFCI. Its
function is to reduce possible injury caused by
electric shock. The GFCI will not protect
against short circuits or overloads.
Test all GFCI receptacles monthly
The 120-volt AC electrical system must be on
in order to test the GFCI.
1. Plug a 120-volt AC electrical device into
the GFCI receptacle outlet.
2. Push and release the RESET button (the
120-volt AC electrical device should
operate normally).
3. Push in the TEST button.
4. The RESET button should pop out
indicating the GFCI receptacle has been
“tripped” and the 120-volt AC electrical
device should cease to operate.
5. Push in the RESET button again and it
should hold. If the GFCI did not trip, do not
use the GFCI receptacle outlet or those
wired to it. Call your dealer for repair
assistance if it does not hold and pops
back out. Any faulty equipment must be
repaired before your RV is used again.
Although your RV’s exterior power receptacle
(if so equipped) is not a GFCI receptacle
outlet, it is wired through and protected by the
interior GFCI.
C
ALCULATING
E
LECTRICAL
L
OAD
When you purchase and use 120-volt
appliances, remember your RV is limited to a
maximum load of 30 amps. When camping
and traveling, remember each appliance and
120-volt accessory places a load on the RV
electrical system. You may periodically trip a
circuit breaker if the combined load of these
appliances and accessories exceeds your 30
amp rating.
You can determine the amperage rating of an
appliance by dividing the watts used (usually
found on a label or plate affixed to the
appliance) by your RV’s supply voltage.
For example: 1200-watts divided by
120-volts AC equals 10-amps.
12-
VOLT
DC S
YSTEM
The majority of the factory-installed RV
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 engine is running.
□ The converter will supply interior 12-volt
DC power when the power cord is plugged
into a 240/120-volt external power source.
The converter will also charge the battery
in most situations.
□ The house batteries power many interior
12-volt components including the lighting
fixtures, water pump, 12-volt motors, 12-
volt appliances, slide room, etc.
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 battery),
which connects or disconnects the house
battery dependent upon the number of times it
is pushed. When energized, the battery
disconnect solenoid supplies battery power to
all accessories connected to the house 12-
volt fuse panel. The 12-volt battery disconnect
switch is used to disconnect the RV from
house battery power during periods of storage
or during service. The switch must be
activated for the 12-volt house electrical
system to operate.
The LP leak detector must be connected to a
constant power source. If the 12-volt battery
disconnect is off it WILL NOT PROVIDE
power to the LP leak detector.