11
FIGURE 7
CLEARANCE TO COMBUSTIBLES, DOWNFLOW UNITS
I393
DOWNFLOW
MODELS
MINIMUM
CLEARANCE
(IN.)
LEFT
RIGHT
SHIP
MODEL
A
B
C
D
E
F
SIDE
SIDE
BACK
TOP
FRONT
VENT
WGTS
04
17
1
⁄
2
16
11
⁄
32
15
5
⁄
8
2
16
5
⁄
8
13
7
⁄
8
0
0
0
1
2
*
0
111
06
17
1
⁄
2
16
11
⁄
32
15
5
⁄
8
2
16
5
⁄
8
13
7
⁄
8
0
0
0
1
2
*
0
117
07
21
19
27
⁄
32
19
3
⁄
16
2
20
1
⁄
8
17
3
⁄
8
0
0
0
1
2
*
0
137
09
21
19
11
⁄
32
19
3
⁄
16
2
20
1
⁄
8
17
3
⁄
8
0
0
0
1
2
*
0
148
10
24
1
⁄
2
23
11
⁄
32
22
5
⁄
8
2
23
5
⁄
8
20
7
⁄
8
0
0
0
1
2
*
0
160
*
A
service
clearance
of
at
least
24
inches
is
recommended
in
front
of
all
furnaces.
NOTE:
IN
DOWNFLOW
CONFIGURATION,
OPTIONAL
AIR
CUTOUT
IS
NOT
PERMITTED.
SUPPLY
AIR
RETURN
AIR
AIRFLOW
2
DIA.
ALT.
GAS
CONNECTION
25
13
⁄
16
4
3
⁄
8
2
DIA.
GAS
CONNECTION
