Electrical Systems - House ---
Section 8
Cayman 2005
273
Energy Management System (Optional)
The Energy Management System is easily identified by the remote display panel located inside
motorhome.
The 50 Amp Smart EMS consists of two elements: the display panel and the bedroom distribution
panel. The distribution panel, located in the bedroom, is a completely self-contained 120/240 Volt
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 cir-
cuit breakers. Two of these breakers, located in the
two center positions, must be a 50 Amp unit that act
as a main input protection for each of the lines sup-
plying the remainder of the branch breakers (up to
12).
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 may be any type load, but
are typically heavier loads; those whose use can be
“postponed until a time when current is available for
use. 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.
060082
With 30 Amp Input
060082b
With 50 Amp input
Содержание Cayman 2005
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