Elbow Configurations; Vent Terminal Configurations; Deductions From Maximum Equivalent Vent Length - International comfort products F96VTN Installation Instructions Manual

NOTE: Maximum Equivalent Vent Length (MEVL) includes standard and concentric vent termination and does NOT include elbows.
Use Table 17 - Deductions from Maximum Equivalent Vent Length to determine allowable vent length for each application.
Unit Size 40,000
Pipe Dia. (in) 1 ½ 2
0--- 2000 40 155
2001--- 3000 35 150
3001--- 4000 30 135
4001--- 4500 130
25
Altitude
4501--- 5000 125
(feet)
5001--- 6000 20 120
6001--- 7000 15 110
7001--- 8000 100
10
8001--- 9000 90
9001--- 10000 5 80
Unit Size 40,000
Pipe Dia.
38 51
(mm)
0--- 610 12.1 47.2
611--- 914 10.6 45.7
915--- 1219 9.1 41.1
1220--- 1370 39.6
Altitude
7.6
(meters) 1371--- 1524 38.1
1525--- 1829 6.0 36.5
1830--- 2134 4.5 33.5
2135--- 2438 30.4
3.0
2439--- 2743 27.4
2744--- 3048 1.5 24.3
NOTES:
1. 40K Inducer Outlet Restrictor
Inducer Outlet Restrictor disk (P/N 1185623; 1.25 ---in. (32 mm) Dia.) shipped in the loose parts bag or available through FAST Parts required under 10---ft. (3
M) TEVL in all orientations. Required for installations from 0 --- 2000 (0 to 610 M) above sea level. Failure to use an outlet restrictor may result in flame
disturbances or flame sense lock ---out.
2. 60K Inducer Outlet Restrictor
Inducer Outlet Restrictor disk (P/N 1185623; 1.25 ---in. (32 mm) Dia.) available through FAST Parts required for no greater than 5 ---ft. (1.5 M) TEVL in down-
flow and horizontal orientations only. Required for installations from 0 --- 2000 (0 to 610 M) above sea level.
3. 100K Inducer Outlet Restrictor
Inducer Outlet Restrictor disk (P/N 337683 ---402; 1.50 ---in. (38 mm) Dia.) available through FAST Parts required for no greater than 5 ---ft. (1.5 M) TEVL in
downflow and horizontal orientations only. Required for installations from 0 --- 2000 (0 to 610 M) above sea level.

ELBOW CONFIGURATIONS

Long
Medium
Pipe Diameter (in):
Mitered 90º Elbow
Medium Radius 90º Elbow
Long Radius 90º Elbow
Mitered 45º Elbow
Medium Radius 45º Elbow
Long Radius 45º Elbow
Tee
Concentric Vent Termination
Standard Vent Termination
NOTES:
1. Use only the smallest diameter pipe possible for venting. Over ---sizing may cause flame disturbance or excessive vent terminal icing or freeze ---up.
2. NA --- Not allowed. Pressure switch will not close, or flame disturbance may result.
3. Vent sizing for Canadian installations over 4500 ft. (1370 M) above sea level are subject to acceptance by the local authorities having jurisdiction.
4. Size both the combustion air and vent pipe independently, then use the larger size for both pipes.
5. Assume the two 45_ elbows equal one 90_ elbow. Wide radius elbows are desirable and may be required in some cases.
6. Elbow and pipe sections within the furnace casing and at the vent termination should not be included in vent length or elbow count.
7. The minimum pipe length is 5 ft. (2 M) linear feet (meters) for all applications.
8. Use 3 ---in. (76 mm) diameter vent termination kit for installations requiring 4 ---in. (102 mm) diameter pipe.
440 01 4800 01
Table 16 – Maximum Equivalent Vent Length - - Ft.
1 2
60,000
2 ½ 1 ½ 2 2 ½ 3
185 100 175 200
20
175 95 165 185
160 16 90 155 175
155 85 150 170
145 15 80 145 165
130 75 140 155
120 13 70 130 145
110 10 65 120 135
95 5 60 115 125
85 N/A 55 105 115
Maximum Equivalent Vent Length --- Meters
1 2
60,000
64 38 51 64 76
56.3 30.4 53.3 60.9
6.0
53.3 28.9 50.2 56.3
48.7 4.8 27.4 47.2 53.3
47.2 25.9 45.7 51.8
44.1 4.5 24.3 44.1 50.2
39.6 22.8 42.6 47.2
36.5 3.9 21.3 39.6 44.1
33.5 3.0 19.8 36.5 41.1
28.9 1.5 18.2 35.0 38.1
25.9 NA 16.7 32.0 35.0
Mitered
Table 17 – Deductions from Maximum Equivalent Vent Length - - Ft. (M)
1-1/2
8 (2.4)
5 (1.5)
3 (0.9)
4 (1.2)
2.5 (0.8) 2.5
1.5 (0.5) 1.5
16 (4.9) 16
NA
0 (0.0)
Specifications subject to change without notice.
80,000
1 ½ 2 2 ½ 3
15 55 130 175 200
125 165 185
49
115 155 175
10 150 165
44 110
145 160
41 100 135 150
38 125 140
90
36 120 125
N/A
33 80 110 115
30 75 100 105
80,000
38 51 64 76 102
4.5 16.7 39.6 53.3 60.9
38.1 50.2 56.3
14.9
35.0 47.2 53.3
3.0 45.7 50.2
13.4 33.5
44.1 48.7
12.4 30.4 41.1 45.7
11.5 38.1 42.6
27.4
10.9 36.5 38.1
NA
10.0 24.3 33.5 35.0
9.1 22.8 30.4 32.0

VENT TERMINAL CONFIGURATIONS

Concentric
2 2-1/2
8 (2.4) 8 (2.4)
5 (1.5) 5 (1.5)
3 (0.9) 3 (0.9)
4 (1.2) 4 (1.2)
(0.8) 2.5 (0.8)
(0.5) 1.5 (0.5)
(4.9) 16 (4.9)
0 (0.0) NA
0 (0.0) 0 (0.0)
3
100,000
4 2 2 ½ 3 4
20 80 175 200
165 185
15 75
175
155
70 170
150 165
10 65
140 155
60 135 145
55 125 135
N/A 50 115 125
45 100 115
3
100,000
51 64 76 102
6.0 24.3 53.3 60.9
50.2 56.3
4.5 22.8
53.3
47.2
21.3 51.8
45.7 50.2
3.0 19.8
42.6 47.2
18.2 41.1 44.1
16.7 38.1 41.1
NA 15.2 35.0 38.1
13.7 30.4 35.0
Standard 2-in., 3-in., or
optional 4-in. termination.
3
8 (2.4)
5 (1.5)
3 (0.9)
4 (1.2)
2.5 (0.8) 2.5
1.5 (0.5) 1.5
16 (4.9) 16
0 (0.0)
0 (0.0)
120,000
2 ½ 3 4
75 185
10
70 175
5 65 165
160
60
155
N/A 50 140
46 130
43 120
39 115
120,000
64 76 102
22.8 56.3
3.0
21.3 53.3
1.5 19.8 50.2
48.7
18.2
47.2
NA 15.2 42.6
14.0 39.6
13.1 36.5
11.8 35.0
A13110
4
8 (2.4)
5 (1.5)
3 (0.9)
4 (1.2)
(0.8)
(0.5)
(4.9)
NA
0 (0.0)
53