Electrical Systems - House --- Section 8
The Executive 2005
375
Overview
The motorhome is equipped with two inverters. The two inverters, combined with the house battery
bank, supply an ample amount of power when the system is used wisely. When dry camping, turn the
inverters on only when needed. The inverters use battery power to supply 120 Volt AC power to oper-
ate most of the appliances, outlets and the entertainment system.
The Automatic Generator Start feature should be enabled to start the generator to prevent the battery
bank from severe discharge. When house battery voltage becomes low, the Auto Gen-Start will
engage to supply 120 Volt AC power to the main load center and the inverters. The inverters charge
the battery bank. The generator will continue to operate until the pre-programmed stop point. The
generator stops and the inverters supply 120 Volt AC power, repeating the cycle.
NOTE:
This is not a replacement for the inverter manual. Keep the inverter manual in the
motorhome as it will be needed for reference.
Meters
The two inverters are electrically linked together with an external shunt that monitors AC and DC
current. A shunt allows a majority of the current to flow through the shunt on heavy conductors, while
some of the current flows through on light conductors. The external shunt is what the Master inverter
uses to monitor DC charging or discharging current. An internal shunt monitors AC current. When hooked
to anything less than 50 Amp service, or particularly when dry camping, use the Master remote to mon-
itor AC and DC current consumption and charging values. The AC and DC meters are located in the
Meters Menu. Analog meters are available for quick AC reference when hooked to shore power or
operating from the generator. Use the inverter meters to calculate the amount of DC power the inverter
requires to operate the refrigerator, cook top and microwave. Write down the figures to approximate dis-
charge time of the battery bank.
NOTE:
When using the inverters as the power source the analog meters do not operate.
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