Payne PG9MAA Specification page 8

MAXIMUM ALLOWABLE PIPE LENGTH (FT) Continued
ALTITUDE
ABOVE SEA
LEVEL (FT)
800I to 9000_:
UNIT SIZE
024040
036040
024060
036060
048060
036080
048080
060080
048100
060100
060120
060140
024040
036040
024060
036060
048060
90Olto 036080
10,000_ 048080
060080
048100
060100
060120
060140
* Disk usage--Unless otherwise s
TERMINATION
TYPE
2 Pipe or 2-In. Concentric
2 Pipe or 2-In. Concentric
2 Pipe or 2-In. Concentric
2 Pipe or 3-In. Concentric
2 Pipe or 3-In. Concentric
PIPE
DIAMETER
(IN.)*
I-1/2
2
I-1/2
2
2
2-1/2
2-1/2
3
31-no disk
41-no disk
2 Pipe or 2-In. Concentric
2 Pipe or 2-In. Concentric
2 Pipe or 2-In. Concentric
2 Pipe or 3-In. Concentric
2 Pipe or 3-In. Concentric
I-1/2
2
NUMBER OF 90 °
3
36
58
NA
42
17
58
7
49
NA
25
ELBOWS
4
3I
56
NA
37
12
56
5
44
NA
20
1 2
46 41
62 60
I1 6
49 44
33 28
62 60
23 I5
59 54
I0 NA
35 30
NA
42 37
57 55
45 40
30 25
57 55
21 I3
54 49
I0 5
NA
5
29
55
NA
35
10
55
NA
39
NA
15
6
24
53
NA
34
NA
53
NA
34
NA
I0
20
47
2 29
32 27 25
53 5I 49
38 33 3I
14 9 7
53 5I 49
5 NA NA
44 39 34
NA NA NA
2
2-1/2
2-1/2
3
41-no disk
_ecified, use perforated disk assembly
NA
47
NA
29
NA
(factory-supplied in loose parts bag). If one disk is stated, separate 2 halves of per-
forated disk assembly and use shouldered disk half. When using shouldered disk half, install screen side toward inlet box.
1- Wide radius elbow.
_: Vent sizing for Canadian installations above 4500 ft (1370m) above sea level are subject to acceptance by the local authorities having jurisdiction.
N/A -- Not Allowed. Pressure switch will not make.
NOTES:
I. Do not use pipe size greater than those specified in table or incomplete combustion, flame disturbance, or flame sense lockout may occur.
2. Size both the combustionIair and vent pipe independently, then use the larger diameter for both pipes.
3. Assume two 45 ° elbows equal one 90 ° elbow. Long radius elbows are desirable and may be required in some cases.
4. Elbows and pipe sections within the furnace casing and at the vent termination should not be included in vent length or elbow count.
5. The minimum pipe length is 5 ft for all applications.
6. Use 3-in. diameter vent termination kit for installations requiring 4-in. diameter pipe.
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