28
For
multiple
sid
e
wall
e
xhaust t
ermin
a
tions
(e
.g.
multi-
unit
syst
ems),
an
e
xhaust t
ermin
a
tion
must
be
at
lea
st 1
ft.
(305mm)
away from
another
e
xhaust t
ermin
a
tion.
An
e
xhaust t
ermin
a
tion
must also
be
at
lea
st 2
ft.
(610
mm)
away from
an
inside
c
orne
r. If
the
adjacen
t wall is
less
than
2
ft.
(610
mm)
of
len
g
th,
the
minimum
r
equi
r
ed
dist
ance
away from
the
inside
c
orner
will
be
equal
to
the
len
gth of
that
adjacen
t wall.
For
multiple-
u
nit,
dir
ec
t
-
v
en
t sid
e
wall t
ermin
a
tions
that
c
ombine
the
i
n
tak
e
and
e
xhaust i
n
to a
single
pene
tra
tion,
space
each
dir
ec
t
-
v
en
t t
ermin
a
tion
at
lea
st 1
ft.
(305
mm)
away from
each
othe
r
,
no
ma
tter
the
orien
ta
tion.
A dir
ec
t
-
v
en
t t
ermin
a
tion
must also
be
at
lea
st 2
ft.
(610
mm)
away
from
an
inside
c
orne
r. If
the
adjacen
t wall is
less
than
2
ft.
(610
mm)
of
len
g
th,
the
minimum
r
equi
r
ed
dist
ance
away
from
the
inside
c
orner
will
be
equal
to
the
len
gth of that
adjacen
t wall.
For dir
ec
t
-
v
en
t sid
e
wall
t
ermin
a
tions
that
use
two
sepa
rat
e
pene
tra
tions
for
the
i
n
tak
e
and
e
xhaus
t,
dist
ance
the
i
n
tak
e
and
e
xhaust t
ermin
a
tions
at
lea
st 3
ft.
(915
mm)
away
from
ea
ch ot
he
r
,
n
o
ma
tter
the
orien
ta
tion
unless
th
e
y follow c
ase
1
and
2
on
p.
23.
For
multiple-
u
nit
roo
ftop
t
ermin
a
tions
(wh
ether
for st
anda
rd or dir
ec
t
-
v
en
t
in
stalla
tions)
space
all
e
xhaust
and
i
n
tak
e
t
ermin
a
tions
in
accor
dance
with local c
odes.
An
e
xhaust t
ermin
a
tion
must
be
spaced
from a wall or surf
ace
in
accor
dance
with local c
odes
as w
ell.
In
the
ab
sence
of such a c
ode,
an
e
xhaust
t
ermin
a
tion
must
be
a horizo
n
tal dist
ance
of at
lea
st 2
ft.
(610
mm)
away from a wall or surfac
e
.
CAUTION
guidelines.
Local c
odes
supe
r
sede
these
guidelines.
Exhaust
a
nd
/or
dir
ec
t
-
v
en
t sid
e
wall
t
ermin
a
tions
should
be
at
lea
st 2
ft.
(610
mm
)
away from
an
opposi
t
e
surfa
ce
/
wall. Do
not
place
t
he
t
er
m
in
a
tion
dir
ectly
in
fro
n
t of
an
opening
i
n
to a
building
.
Please
follow all local
and
n
a
tional
c
odes
in
r
e
gards to
p
r
oper
t
ermin
a
tion
clea
r
ances.
In
the
ab
sence
of such c
odes,
the
abov
e
clea
r
ances
c
an
be
used
as
inle
t
inle
t
inle
t
Inside
c
orner
(305 mm
)
(610 mm
)
(305 mm
)
Com
bine
d
Exhaust
t
ermin
a
tion
min
2
ft
.
(610 mm
)
A
&
B
-
In
accor
dance
with local c
odes
Ansnow le
t
v
ed el
Roof
A
Air i
n
tak
e
A
A
B
B
B
B
s
Anno
w l
e
v
t
el
ed
A
A
Air i
n
tak
e
Exhaust
B
B
(610 mm) min
B
-Clearances for
-Clearances for
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Страница 49: ...49 Boiler Notes ...