EXHAUST
SYSTEM
Plan each individual exhaust system carefully.
A
proper Installation
is not
only
gas
tight,
but
usually
quieter,"too.
Be
sure
to
check
all
applicable recrea-
tional vehicle standards, local codes
and
regulations.
WARNING
CAUTION
Plan
the
exhaust system carefully. Exhaust
gases
are
deadly!
Do
not
connect
the
electric generating
set
exhaust
to the
vehicle system. Water vapor
from
one
engine
can
damage
the
other engine.
1.
The
exhaust system must
be no
closer than
2
inches from
any
combustible material,
or be so
located,
insulated
or
shielded
so it
does
not
raise
the temperature
of any
combustible material
by
more than
117°F
(65°C) above
the
ambient
air
inlet temperature.
2.
The
exhaust system must extend
a
minimum
of
one inch beyond
the
perimeter
of the
vehicle.
If
the generator
set
tailpipe
is on the
same side
of
the coach
as the
compartment,
it
should termi-
nate
aft of the air
intake
to
prevent recirculation
of
exhaust fumes.
WARNING
Do
not
terminate poisonous carbon
monoxide exhaust
gas
under vehicle.
Direct exhaust gases away from window
and
door openings.
Keep
all
openings above
or to the
rear
of
exhaust pipes closed
when generator
set is
operating.
3. Exhaust pipe must terminate
a
minimum
of
three
feet from
the
vehicle fuel filler spout (more dis-
tance
if
required
by
local codes).
4.
Use
automotive type tail pipe hangers
for
hang-
ing
the
exhaust system from vehicle under-
carriage.
CAUTION
If tail pipe deflector
is
used,
be
sure
it is
large enough
to
prevent excessive back
pressure.
EXHAUST
SPARK
ARRESTERS
Exhaust spark arresters
are
necessary
for
SAFE
OPERATION.
All
require periodic clean-out (every
50
to
100
operating hours)
to
maintain maximum
effi-
ciency. Some state
and
federal parks require them.
To clean spark arrester remove pipe plug
in
bottom
of
muffler.
Run set
under load
for 5
minutes. Replace
plug.
WARNING
All exhaust shielding supplied with unit
MUST
be
properly installed
to
prevent over-
heating
of
compartment walls
or the
possibility
of
fire.
WARNING
Check exhaust system (visually
and
audibly)
for leaks daily
(at
least every
8
hours
of
run-
ning time). Excessive exhaust noise
may
indicate
on
exhaust line
leak.
Modifications
of
exhaust system will void
the UL
listing
and
Onan
warranty. Liability
for
damage
or
injury
and
warranty expenses
due
to
any
changes become
the
responsibility
of the
person making
such changes.
IMPORTANT: Certain states (particularly California) have state
ordinances pertaining
to the
type
and
usage
of
exhaust muffler/
spark arresters
on
internal combustion engines
or
engine driven
equipment when used
in a
recreational vehicle such
as
electric
generating sets.
Be
sure your Installation meets
all
Federal, State
and local codes pertaining
to
your unit. Failure
to
provide
and
maintain
a
spark arrester
may be in
violation
of the law.
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