Tiffin Motorhomes Allegro Bus 2016, Owner'S Manual

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ELECTRICAL FEATURES
GENERAL INFORMATION
Th ere are two electrical systems in your Allegro Bus motorhome. Th ese are the 12-volt DC (VDC) sys-
tem and the 120-volt AC (VAC) system. Most standard appliances require the 120-VAC system, while
the majority of the lighting systems used in the Allegro use the 12-VDC electrical system.
Th e electrical power for the 12 VDC system is supplied by the batteries of the Allegro Bus. Th ose bat-
teries are charged by a power converter which is incorporated into the inverter. Th e engine alternator
also charges the batteries when the engine is running.
Th e electrical power for the 120 VAC is supplied by the power cord when the Allegro Bus is connected
to an external power source or when the on-board electrical generator is in operation. Th e converter/
inverter can also supply 120 VAC electrical power (to limited outlets and limited appliances)—the in-
verter transforms the 12 VDC electrical power from the batteries into the 120 VAC electrical power for
the basic appliances.
To connect the Allegro Bus to an external source of 120 VAC electrical power, it is fi rst recommended
that all of the circuit breakers are in the “o ff ” position. Th is is done to prevent any power surge upon
connecting the motorhome to the external power source. Th en unwind the power cord from the elec-
trical compartment located in an external compartment. Th e standard, fl exible, power cord supplied
with the Allegro Bus is designed to handle up to 50 amperes. Make sure that the pins in the male end
of the plug are oriented correctly so they match the power cable, and they are in good condition (i.e.,
aren’t bent or damaged).
If there is a circuit breaker switch at the “plug” end of the power cord, that breaker should be turned
“o ff ” before making the connection. Insert the plug into the mating outlet and then turn the circuit
breaker “on.” Close and lock the electrical compartment door to protect the contents and to keep them
clean and dry. Close the cover on the power box, if so equipped, to avoid an unintentional disconnec-
tion and to keep the contents clean and dry. Th en switch the main breaker to the “on” position.
When properly connected, the 120 VAC system provides power to all the 120 VAC circuits and outlets
when the main breaker is turned “on.”
CAUTION
Failure to turn off the 120 VAC appliances
when starting or stopping the generator may
damage the transfer switch and/or electrical
appliances.