4 18-DE01D1-8
Installer’s Guide
STANDARD CLEARANCES
S
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Acc
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.
CLOSET AND ALCOVE INSTALLATION
A
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(
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c
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.
The hori
z
ontal/ down
f
low
f
urnace model requires
an optional combustible sur
f
ace-mounting base
(model # BAYSUB10ABASEAA)
f
or vertical instal-
lation (i.e., down
f
low con
f
iguration) directly on
combustible materials, re
f
er to Figure
2
.
1
Recommended Support Frame
f
or Down
f
low/
Hori
z
ontal Furnaces
2
Down
f
low Furnace Combustible
Sur
f
ace-Mounting Base
The minimum clearances
f
rom
f
urnace casing
sur
f
aces to combustible materials are
:
-
3
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n
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8
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d
oo
r
,
w
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x
c
e
p
t
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o
n
of:
*
T
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3
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.
*
T
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q
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22
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oo
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.
-
9
i
n
c
h
e
s
f
r
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m
f
l
u
e
p
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p
e
/
v
e
n
t
co
nn
e
c
t
o
r
.
-
3
i
n
c
h
e
s
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m
c
a
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g
t
o
p
.
-
3
i
n
c
h
e
s
f
r
o
m
a
n
y
s
i
d
e
of
s
u
pp
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y
a
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r
p
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e
nu
m
.
-
3
i
n
c
h
e
s
a
b
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v
e
s
u
pp
l
y
a
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r
d
u
c
t
s
,
w
i
t
h
i
n
6
f
ee
t
of
f
u
r
-
n
a
c
e
.
- For the down
f
low/ hori
z
ontal
f
urnace only
,
w
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e
n
t
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o
p
t
i
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n
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.
T
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t
(
18
i
n
c
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s
m
i
n
i
m
u
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, 24
i
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c
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s
r
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co
mm
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n
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)
a
n
d
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a
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of
t
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fo
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cc
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ss
,
s
e
r
v
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c
e
,
a
n
d
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p
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a
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t
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o
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b
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t
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r
(
s
)
,
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r
.
DOWNFLOW/ HORIZONTAL FURNACE
SETUP
T
h
e
d
o
w
n
f
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o
w
/
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r
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d
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f
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co
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-
f
i
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)
.
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S
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F
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3.
T
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F
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3.
R
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f
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fo
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.
N
o
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:
S
ee
I
ll
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p
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24
fo
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b
a
s
e
.
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