TP-5594 5/956-2 Installation
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 space and
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.
When preplanning the installation, the following factors
must be considered.
1. Electrical Load. Does the set selected have
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 thecompartmentairinlets
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. Cooling System. Is the cooling system large
enough to adequately cool the generator set?
6. Fuel System. Is the system properly designed to
prevent fuel starvation of either the main engine or
generator set engine?
7. Exhaust System. Will the system meet all safety
requirements after installation?
8. 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
Whilethe electricalloadof the vehicleshouldhavebeen
calculated prior to purchase of the generator set, you
may want to recheck the loadbefore installing the set to
make sure that the capacity is ample to meet demands
without possible overloading.
Lighting Load
The lighting load is 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
generator set AC circuit—some are DC powered 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 the air conditioner or
other motor loads startup.
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