Onan 16004 Series - VENTILATION AND ACOUSTICS; Vacu-Flo Cooling System; Air Inlet Requirements

Imllllill
VENTILATION
AND
ACOUSTICS
The
most tn'rporlant
iactors
of venttlatton
for
an
air,
coo ed
nobt
e erFclr
c
g.rerdtt.g
sel are
sJll.crent
rcol
nl
,
oolrng
d
'
ar
d err
aLst,rq
aealpd
a
I
Belo
o
ronsruor,ng
I're
nsla'at,on proole-ns
\_owleog
o'ho,^
dn
On r^
Ji^rl
coo s,lsp, t
s.leeood
VACU-FLO
COOLING
4
On:r'
.rFcr'
on']F at,rg
sets
tor
r.credl,ora,
,.'
c
ns
Jse Vac--Fto
cuo.ng
a.ent lugal
fan in
a
s.
olr roJs.ng
o-
lrp ergtn.
eno
trtg_re
l)
I
lt
draws
air frorn
the
generator
end ot
lhe
'
o r
od.lnF l
ll
o.gnriegelerdlorardove,the
Loo,rJ
)-
rd,e)
or rteeng.le
lhpr
oscrdrges
rlohpdredd.
oJtr.rouohltieVaC
J.F,od.s.rdrqe
openlng
2
Ai slandard
sets
for recrealional
vehicles
have
tire Vacu
Flo
scrollpos
tioned
downward.
Be
su re
nothtng
obstructs
or restncts
dtscharged
a rflow.
Never
use
discharged
cooring
atr tor
healing
since
ii can
conlain
poisono!s
AIR REQUIREMENTS
Cooling
air
requirements
for
Onan
electric
generating
sets
vary
witn type
and srze.
speciat
equipment
is
needed
to
.neasure
it
Srnce th;
dis-
charge.
area-can
t
be cha.ged.
a
.
il.ler
ooenrng
is
crtlrcall The
6.5 kW NH running
at I8OO
rp.1 req
rir;s
a
mrnrmum
free
air
inlet
area
ot 120
square rnches
witn
no reslrictions
and
the arr
discnarge
.s
5:O : ro
c
.eet
per
mrnute,
The
Onan
UL tested
air
cleaner
e,ement
is
specifically
designed
to meet
the
combustion
air
requ:.erenls
oi
lhe6.5
NH.
Thrs
etement
sl.ould
oe rep
acm
eacl-
2OO
hours
ol operatiOn
ano rnore
often
,n
erlreTeiy
dLsty
conditions.
RESTRICTED
AIR
OPENINGS
Sheet
rnetal
with louvers
can
be used
over are:
areas.
However,
some
provide
only 60
perceni
lree ra
et area
per
square
foot.
Even
the
mosi
efficient
g.
re
cnty
provides
about
90
perceft
free
tn
et area oer
soLtare
fool.
The lrFe
intet
area
ol tTe r'tate1a,
cai
oe
obtained
from
the
manufaciurer.
Calculaie the
inlet
area needed
using
the
,otiownq
intOrrat,O.
as
a
guide.
See Figure
4.
Unrestricted
air inlet
requirements
forthis
sei is
120
square r.tches
The
120
squa,e ,^caes
shoLto
oe
d vidcd
by rhe
percent
roor
of
,ree
a
,
of
rh6
proposed
louvFr
Io
delFrT,ne
nFcessa.y
s!-ale
a.aa,t. i:,s
sei
wA
tN lt{c
AIN IN
2
I
lit
B OUT
Al
ow ior
ducls or
obstrLlctrons
ol airflow.
position
of
lhe a r
ope|rngs
must
permrt
airftow
white
the
unit is
rL^n
_9
lo ourqe
trF
uonpd[.renl
o, hedred
air But
oa,'L
down
lhe
ooer,ngs
-nJslallow
tor
conve(
tion
cofr
-g
Ot
ite
cohpa
tme.t
,or
neared
a,r
lo
pscaoe
3.
TYPICAI
ONAN MOBI!E
COO!ING
SYSiEM
FIGIIR€ 4
TYPICAL
LOIJVER€O
DOOF AIR INLET