Onan DKHA Series, Installation Manual

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7-1
7. Installation Review and Startup
WARNING
Accidental starting of the APU can
cause severe personal injury or death. Until the
APU is ready for startup, ensure that the APU’s
remote control connector is disconnected, the
circuit breaker is OFF and that both negative ( − )
and positive (+) battery cables are disconnected
at the batteries.
First
Review the following items that can be checked be-
fore the APU is started up. Make necessary repairs
and reconnections.
Second
Read the Operator’s Manual and perform the main-
tenance and pre-start checks instructed. If the APU
shares the cooling system with the main vehicle en-
gine fill and bleed the system in accordance with the
Operator’s Manual. The APU is shipped from the
factory with the proper level of engine oil.
WARNING
EXHAUST GAS IS DEADLY! Do not
operate the APU when the vehicle is indoors un-
less there is ample fresh air ventilation.
Third
Connect the battery cables to the batteries, positive
( + ) cable first, and start the APU. It may take several
tries until the fuel line is primed.
Forth
Connect the APU’s remote control connector and
push the circuit breaker ON. Continue testing the
system with power available from the APU.
Do not place the APU in service until all installation
review items have been checked off.
Check List
[ ] The APU is securely bolted to the left or right
vehicle frame rail ahead of the rear wheels.
[ ] There is clearance to connect and disconnect
coolant lines, fuel lines, AC wiring, remote con-
trol wiring and battery cables.
[ ] The control panel on the APU is accessible for
starting and stopping the APU and resetting the
circuit breaker.
[ ] There is access for checking, adding and drain-
ing engine oil and coolant.
[ ] There is access for replacing the oil, fuel and air
filters.
[ ] The air inlet and outlet openings are free of ob-
structions.
[ ] The exhaust tailpipe is connected and secure.
[ ] The fuel dip tubes in the main fuel tank have
been properly installed and the fuel lines have
been secured at sufficient intervals to prevent
chaffing and contact with sharp edges, electri-
cal wiring and hot exhaust parts.
[ ] AC wiring, remote control wiring and battery
cables have been routed and secured at suffi-
cient intervals to prevent chaffing and contact
with sharp edges and hot exhaust parts.
[ ] The Operator Panel is properly mounted and
communicates with the APU.
[ ] (Optional) The ignition key is connected to the
APU’s remote control circuit to cause the APU
to shut down when the main vehicle engine is
started.
[ ] If provision has been made to connect shore
power, the transfer switch is connected to the
APU’s remote control circuit to cause the APU
to shut down when shore power is connected.
[ ] The HVAC unit is connected to the APU’s re-
mote control circuit to cause the APU to start
when the cab thermostat calls for heating or
cooling (AUTO enabled).
[ ] AC power is available to the HVAC unit when
the APU is running.
[ ] AC power is available to all power outlets in the
cab when the APU is running.
[ ] If the main engine is so equipped, AC power is
available to the block heater when the APU is
running.
[ ] All fuel, coolant, oil and exhaust leaks have
been repaired and there are no unusual noises.