Onan NH Series Operator's Manual And Parts Catalog

!
INSTATTATION
If
the electric generating plant
is
to
operate
properly,
it
must
be
correctly
installed. This
manual
gives
some
of the more
important
aspects
of installatio[. For
more
details,
a Technical Bulletin (T-012)
is available frorn
Onan.
Ventilatiort is the
most
important factor
to consider. The
unit must have enough cooling air to
operate
safely
and
efficiently.
The
heated
air
must be
disposed
of to keep
the engine frorn
overheating
and
losing
power.
For the
NH
plalt
tunning
at 1800tpm,
the amount
of
air dis-
charged
is
750cfm. The
minimum
free
air inlet with
no
filter
or restriction
is
140 sq.
in.
Onan Vacu-Flo cooled
units are specifically
designed
for
mounting
in
small
compartments
(where proper
cooling
is
difficult)
and are equipped
to
provide
suf-
ficient
cooling air and
adequate disposition
of heated
air.
With this type
of cooling, a centrifugal fan
in a
scroll
housing
pulls
cooling air
into the compartment
PROVIOE
OPENINGS IN
OOOR FOR
ENTRAN CE
AND
COOLING AIR ANO
HEATED
AIR
COMPARTMENT
OF COMBUSTION
FOR
ESCAPE OF
oAo
wtR
TYPE
FUEL LIN
PIP E EXHAUST
TO
PERIMETER
OF VE H ICLE
FIGURE
I.
TYPICAL MOBILE INSTALLATION
10

Onan NH Series Specifications

General

Frequency	60 Hz
Engine Type	4-Cycle
Fuel Type	Gasoline
Starting System	Electric
Voltage	120/240V
Noise Level	72 dB(A) at 7 meters
Fuel Consumption	0.5-1.0 gal/hr (gasoline)