ELECTRICAL SYSTEMS-HOUSE - 8
149
CAYMAN 2007
The amount of current it takes to trip the
device from a ground fault varies slightly from
the different outlet or breaker manufacturers
(approximately 4 to 6 milliamps or less).
Electrical shocks resulting from ground faults
can be felt, but such a shock is considerably
less than one without ground fault protection.
People with medical conditions that make them
susceptible to shock, can still be seriously
injured. A GFCI outlet or breaker will not
protect against shock from a normal current
fl ow.
For example:
a shock from touching both
metal prongs of an electrical cord or appliance
while plugging it in.
WARNING:
If a breaker or outlet continually trips,
DO NOT continue to reset breaker
or outlet until the problem has been
identified and corrected.
NOTE:
The ground fault outlet or breaker
should be tested once a month to ensure
it is operating. Use the TEST button
on the outlet or breaker. It should trip
with an audible “click.” The breaker or
outlet will not trip if AC power is not
present at the device. If power is present
and the device will not trip, replace it
before using that circuit.
NOTE:
One milliamp is 1/1000 of one amp.
Energy Management System
The Energy Management System remote
display panel is located on the hallway monitor
panel. The 50 Amp Smart EMS consists of two
elements: the display panel and the bedroom
distribution panel. The distribution panel
is a self-contained 120/240 Volt AC power
distribution and energy management system
intended to be used in recreational vehicles.
It is housed in a sheet metal enclosure with
removable front panel. It provides circuit
protection for all the 120 Volt AC loads in the
motorhome and a system of energy management
to minimize the over-loading and tripping of
circuit breakers.
Circuit Breakers:
The distribution panel offers slots for eight
single or dual, standard 120 Volt circuit
breakers. Two of these breakers, located in the
two center positions, are 50 Amp and act as
input protection for each of the lines supplying
the remainder of the branch breakers.
Energy Management:
The 50 Amp Smart EMS automatically
senses the available power to the motorhome,
determining whether it is connected to a 120
Volt AC-30 Amp shore power source, 50
Amp shore power source or generator source.
Depending upon available power, the EMS
controls the operation of 6 possible loads as
indicated on the distribution panel. These are
typically heavier loads that can be postponed
until the correct current is available. If the
available power source is 120 Volt AC-30 Amp
shore power, the EMS attempts to keep the total
120 Volt current draw to less than 30 Amps.
Operation:
If 120 Volt AC is not available at the
distribution panel, L1 or L2 outputs, the system
shuts itself off. This feature is intended to
prevent the system from drawing current from
the +12 Volt DC battery supply when not in
operation.
When 120 Volt AC power is applied, the
system automatically powers up and determines
the nature of the power source. On 50 Amp
shore power, the load meter will not indicate
Amp load.
If the generator is running, 120 Volt AC
will be present at the distribution panel L1
(Line 1) and L2 (Line 2) inputs. In this mode
the energy management feature is disabled and
all control relay contacts are closed, energizing
all of the controlled loads. The control module
sends a signal to the display panel causing
the load meter to display actual load current,
the
GEN SET
service indicator to light and all
power status indicators to light.
With 30 Amp Input
060082
Summary of Contents for CAYMAN 2007
Page 12: ...GENERAL INFORMATION 1 CAYMAN 2007 8 NOTES...
Page 14: ......
Page 16: ......
Page 52: ...DRIVING SAFETY 2 CAYMAN 2007 48 NOTES...
Page 80: ...EXTERIOR INTERIOR CARE 3 CAYMAN 2007 76 NOTES...
Page 100: ...APPLIANCES 4 CAYMAN 2007 96 NOTES...
Page 132: ...WATER SYSTEMS 6 CAYMAN 2007 128 NOTES...
Page 160: ...ELECTRICAL SYSTEMS HOUSE 8 156 CAYMAN 2007 NOTES...
Page 226: ...INDEX 222 CAYMAN 2007 NOTES...