6-2 Installation TP-5393 9/93
Generator Selection And Wattage Requirements
Total wattage requirements(lights, motors, appliances)
must be considered in selecting a generator set, or
sizing wattage requirements when available spaceand
construction may limit the size of the generator set.
Refer to the following when figuring wattage
requirements.
Installation Factors
Each generator set is shipped as a unit except for the
optional exhaust system components which are
shipped loose for assembly after the set is installed in
the vehicle.
Whenpre-planningthe installation, thefollowingfactors
must be considered.
1. ELECTRICALLOAD: Doestheset selectedhave
adequate capacity to handle the load?
2. COMPARTMENT SIZE: Will there be sufficient
room around the set to maintain minimum
clearances?
3. AIR REQUIREMENTS: Are the compartment air
inlets and outlets sized to allow adequate
circulation of air for cooling and combustion?
4. COMPARTMENT FLOOR: Is the compartment
floor strong enough to support the weight of the
Generator Set?
5. FUEL SYSTEM: Is the system properly designed
to prevent fuel starvationof eitherthe mainengine
or generator set engine?
6. EXHAUST SYSTEM: Will the system meet all
safety requirements after installation?
7. ELECTRICAL CONNECTIONS: Will all systems
(battery, load and remote switch) be compatible
with vehicle systems?
Each of these installation considerations is covered in
detail on the following pages.
Electrical Load
Whiletheelectricalloadofthevehicleshouldhavebeen
calculated prior to purchase of the generator set, you
maywant to recheck the load beforeinstallingthe setto
make sure that the capacity is ample to meet demands
without possible overloading.
Lighting Load
The lighting loadis usually easiest to calculate. In most
cases, simply add the wattage of each lamp to be
operated off the generator set. Note that in many
applications, not all of the lights or lamps are in the
generatorset AC circuit—someare DCpowered by the
12-volt battery in the vehicle. Make sure the total
includes only lights actually on the generator set AC
circuit.
The lighting load is usually not too heavy in mobile
installations; however, it must be accurately calculated
topreventoverloadingwhichcouldoccur,forexample,if
all lights happened to be on when theair conditioner or
other motor loads start-up.
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