Table of Contents
Advertisement
automatic
transfer
generator to the AC distribution center when
the generator is operating and shore power is
disconnected from the trailer.
The power to start the generator comes from
the auxiliary batteries (customer supplied). A
remote start/stop switch is located on the
command center. A second start/stop switch is
located on the generator. Be aware the
generator runs on gasoline and gives off
carbon monoxide.
For more information
Read the OEM operator's manual. If you have
further questions, contact your RV dealer,
OEM or Jayco Customer Service.
12-
DC S
VOLT
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 tow vehicle
alternator when the engine is running and
the 7-way trailer plug is connected. This
powers the RV's running lights, brake
lights, turn signals and brakes. In addition,
the 7-way trailer plug provides a common
ground and a 12-volt charge line to charge
the auxiliary battery.
The converter will supply interior 12-volt
DC power when the power cord is plugged
into a 120-volt external power source. The
converter will also charge the auxiliary
battery in most situations.
The auxiliary battery powers many interior
12-volt components including the lighting
fixtures, water pump, 12-volt motors,
12-volt appliances, slide room, etc. It also
powers the breakaway switch.
In addition to the 12-volt DC system
information contained in this section, also refer
to
the
following
information:
switch
connects
the
12-volt
component
ELECTRICAL SYSTEMS
Sec. 5 Plumbing system, 12-Volt Water
pump & switch
Sec. 7 Towing & Handling, Breakaway
Switch
Sec. 7 Towing & Handling, Wire
harness/Connecter plug.
A
B
UXILIARY
ATTERIES
(C
S
USTOMER
UPPLIED
Your RV has many 12-volt DC loads. When
combined, their total is more than the
converter can produce. High demands for
12-volt power can be met by an auxiliary
batteries for limited periods of time. The
12-volt DC electrical system is designed for
usage with a Group 27, deep cycle batteries.
Dry camping
Consider the charge condition of the each
auxiliary battery when dry camping. If the
auxiliary battery is not being recharged and
power is being drawn from it, it will eventually
discharge. The battery will discharge at a
faster rate as its energy level becomes
depleted. It is recommended you plan your
electrical usage accordingly.
A fully charged auxiliary battery will read 12.7
volts DC and 1.265 specific gravity at 80°F
(32°C). The auxiliary battery is considered
discharged at 11.8 volts DC by electronic
standards. When voltage drops below those
levels,
permanent
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).
For accuracy, test the auxiliary battery voltage
using a volt-ohm meter (customer supplied).
SECTION 3
)
damage
may
occur.
23
Advertisement
Table of Contents
