27
D
23 1/2
A
23
28
34 1/2
15
1
25 3/8
1 5/8
X 3 1/2
HOLE FOR GAS
C
19
B
23
22 3/4
21 3/4
22 1/4
29 1/2
22 1/2
25
1 5/8
X 3 1/2
X
45°
HOLE FOR
GAS
4 KNOCKOUTS
(BOTH SIDES)
BOTTOM
PANEL
LEFT SIDE
RIGHT SIDE
BOTTOM VIEW
TOP VIEW
ACCEPTS 4”
TYPE B
VENT PIPE
23
1 1/4
Ø 7/8 HOLE FOR
THERMOSTAT
Ø 7/8 HOLE FOR
ELECTRIC
Ø 7/8 HOLE FOR
ELECTRIC
FRONT
BRACE
FLANGES
*SA Model #’s
Dim. “A” Dim. “B” Dim. “C” Dim. “D”
045
(
†
)
-23A
14 1/4
10 3/4
12 5/8
12 7/8
054
(
†
)
-23A
072
(
†
)
-24B
17 1/2
11 3/4
15 7/8
16 1/8
090
(
†
)
-24B
072
(
†
)
-35C
21
14
19 3/8
19 7/8
090
(
†
)
-35C
108
(
†
)
-35C
126
(
†
)
-45D
24 1/2
15 1/4
22 7/8
23 1/8
NOTES
:
(
†
) “C” = Standard Models
“N” = 80% Low NOx Models
Dimensions shown in Inches.
Figure 17. Furnace Dimensions
*SK Model #’s Dim. “A” Dim. “B” Dim. “C” Dim. “D”
054
(
†
)
-23A
14 1/4
10 3/4
12 5/8
12 7/8
072
(
†
)
-24B
17 1/2
11 3/4
15 7/8
16 1/8
090
(
†
)
-24B
108
(
†
)
-35C
21
14
19 3/8
19 5/8
126
(
†
)
-45D
24 1/2
15 1/4
22 7/8
23 1/8
NOTES
:
(
†
) “C” = Standard Models
“N” = 80% Low NOx Models
Dimensions shown in Inches.
A
18 5/8
D
C
7
34 1/2
22 1/2
28
25 3/8
Ø 7/8 HOLE
FOR ELECTRIC
Ø
7/8
HOLE
FOR THERMOSTAT
Ø
7/8
HOLE
FOR ELECTRIC
1 5/8
X 3 1/2
HOLE
FOR GAS
22 1/2
25
22 1/4
29 1/2
1 5/8
X 3 1/2
X 45°
HOLE FOR GAS
23
B
FRONT
BRACE
7
RIGHT SIDE
LEFT SIDE
BOTTOM VIEW
TOP VIEW
19
ACCEPTS 4”
TYPE B
VENT PIPE
FLANGES
*SK 80+ Downfl ow Furnace
*SA 80+ Upfl ow Furnace
FIGURES AND TABLES