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036-21584-001 Rev. C (0205)
26-1/2
24-5/8
1-1/2" GAS
PIPE ENTRY
7/8" JUNCTION
BOX HOLE
T-STAT WIRING
7/8" K.O.
CONDENSATE
DRAIN 7/8" K.O.
OPTIONAL RETURN AIR
CUT-OUT (either side)
FOR USE WITH
EXTERNAL FILTER
FRAME
23-3/4
7/8
30-1/8
LEFT SIDE
DIMENSIONS
Nominal
Models
CFM
PV9A12N040UP11
1200
PV9B12N060UP11
1200
PV9B12N080UP11
1200
PV9C16N080UP11
1600
PV9C20N100UP11
2000
PV9D20N120UP11
2000
COMBUSTION AIR SUPPLY AND VENT PIPING
Pipe Size
Models
Inches (cm)
40,000
1-1/2
40,000
2
60,000
1-1/2 (3.8)
60,000
2 (5.1)
60,000
3 (7.6)
80,000
1-1/2 (3.8)
80,000
2 (5.1)
80,000
3 (7.6)
100,000
2 (5.1)
100,000
3 (7.6)
120,000
3 (7.6)
Three elbows (two in vent pipe and one in the air intake pipe) are already accounted for and need not be included in the elbow count from the Table above.
NOTE: If installing furnace at altitudes between 2000 - 4500 ft. (609.6 - 1371.6m), intake and vent pipe length must be reduced by 10 ft. (3.05 m). If the instal-
lation requires the maximum allowable intake and vent pipe length, the furnace must be converted for high altitude operation. Refer to the proper high altitude
application instruction for details.
2
A
30-7/8
21-1/2
13-7/8
11
7
FRONT
7/8
1-3/8
26-3/4
C
BOTTOM IMAGE
RETURN END
Cabinet
Size
A (in.)
A
14-1/2
B
17-1/2
B
17-1/2
C
21
C
21
D
24-1/2
MAXIMUM ELBOWS AND VENT LENGTHS
Maximum Number of Elbows*
1
2
3
30
25
20
70
65
60
30
25
20
60
55
50
85
80
75
20
15
N/A
60
55
50
85
80
75
25
20
15
85
80
75
75
70
65
40
28-3/8
21-1/2
11
8
24-3/8
1-1/4
20
D
2
24-7/16
TOP IMAGE
SUPPLY END
Cabinet Dimension
B (in.)
13-1/2
16-1/4
16-1/4
19-3/4
19-3/4
23-1/4
4
5
6
10
N/A
N/A
55
50
45
10
N/A
N/A
45
40
30
70
65
60
N/A
N/A
N/A
45
40
30
70
65
60
N/A
N/A
N/A
70
65
60
60
55
45
26-1/2
25-3/8
1-1/2" GAS
PIPE ENTRY
7/8" JUNCTION
BOX HOLE
T-STAT WIRING
7/8" K.O.
CONDENSATE
DRAIN 7/8" K.O.
RIGHT SIDE
5/8
5/8
B
C (in.)
D (in.)
12-1/8
6-1/4
15-1/8
8-1/2
15-1/8
8-1/2
18-1/2
8-7/8
18-1/2
8-7/8
21-7/8
10-5/8
Minimum
Length
7
8
N/A
N/A
5
35
25
5
N/A
N/A
5
20
10
5
50
40
20
N/A
N/A
5
20
10
5
50
40
20
N/A
N/A
5
50
40
20
35
25
5
Unitary Products Group
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