Cayman 2006
Electrical Systems - House • Section 8 — 197
The 50 Amp Smart EMS now waits until the total current is lower than the service limit and enough current is
available (as compared with the amount in memory for the last load shed) before turning that load back on. This
assures that there is suffi cient current to operate the load.
NOTE:
There is a two minute minimum delay period after a load is shed before the load will be
turned on again to prevent air conditioners from turning on with a head pressure.
Three Hour Averaging:
The RVIA (Recreational Vehicle Industry Association) in conjunction with the NEC (National Electrical
Council) have established rules regarding the rating of electrical systems and the use of energy management
systems. One of these rules requires that, if any energy management system is used, the average total load current
for the system over a 3 hour period be limited to 80% of the service rating. For that reason the 50 Amp EMS
calculates the average running current for the system and, if it exceeds 80% of the service rating, the EMS sheds
loads to reduce the average current below that limit.
For example, if a system operating under 120 Volt AC, 30 Amp service has been running at the 30 Amp limit
for three hours, the EMS will change its shedding threshold to 24 Amps and turn off loads until the 24 Amp limit
is attained. If the user selects the 20 Amp service mode this limit will translate to 16 Amps. Because the EMS
calculates a running 3 hour average, if the average load current drops below the limit the system will restore
power to loads based on their impact on the limit. If the system is in the averaging mode the decimal point at the
lower right corner of the load meter on the display panel will illuminate.
Display Panel:
The display panel connects to the distribution panel located in the bedroom. Six power status LEDs indicate
power is applied to those loads. These LEDs are on when the power is applied. The load meter has a two digit
display to indicate the amount of current actually being drawn by all the appliances in the motorhome.
Four service type LEDs indicate the source for 120/240 Volt AC power. Three of these sources are
automatically detected and indicated by the EMS, namely: Gen Set Service, 50 Amp Service and 30 Amp Service.
The 20 Amp service mode is not automatically detected and the operator must manually select the 20
Amp mode when 20 Amp service is available.
The service select button allows the current threshold to be set to
either 30 Amps or 20 Amps, to match the incoming service.
DISTRIBUTION PANEL - HOUSE 12 VOLT
The 12 Volt DC house distribution panel
contains fuses (located in the bedroom) that
protect the electrical circuits. These fuses are
a standard automotive type.
060273
Fuse Panel: Located in bedroom closet.
Содержание Cayman 2006
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Страница 59: ...Cayman 2006 Driving Safety Section 2 51 Weight Label 100179d ...
Страница 64: ...56 Section 2 Driving Safety Cayman 2006 Weighing Procedure Worksheet 020255BA Example Worksheet ...
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