International comfort products C Series Installation Instructions Manual page 58

INSTALLATION INSTRUCTIONS
Table 14 MAXIMUM EQUIVALENT VENT LENGTH - Feet (Meters)
Note: Maximum Equivalent Vent Length (MEVL) does NOT include elbows or terminations
Use Table 15 - - DEDUCTIONS FROM MEVL to determine allowable vent length for each application.
1
Unit Size 40,000
Pipe Dia. (in) 1 ½ 2
0-2000 20 85
2001-3000 80
15
3001-4000
4001-4500
70
4501-5000
10
5001-6000 60
6001-7000 55
5
7001-8000 50
8001-9000 30
N/A
9001-10000 25
1
Unit Size 40,000
Pipe Dia.
38 51
(mm)
0-610 6.0 25.9
611-914 24.3
4.5
915-1219
1220-1370
21.3
1371-1524
3.0
1525-1829 18.2
1830-2134 16.7
1.5
2135-2438 15.2
2439-2743 9.1
N/A
2744-3048 7.6
1.40K inducer outlet restrictor
Inducer Outlet Restrictor disk (PN 1185623; 1.25- -in (32- -mm) dia.) shipped in the loose parts bag or available through FAST Parts and is required
under 10- -ft (3.0- -m) TEVL in all orientations. Required for installations from 0 to 2000 ft. (0 to 610 M) above sea level. Failure to use an outlet
restrictor may result in flame disturbance or flame sense lock- -out.
2.60K inducer outlet restrictor
Inducer Outlet Restrictor disk (PN 1185623; 1.25- -in (32- -mm) dia.) available through FAST Parts and is required for no greater than 5- -ft (1.5- -m)
TEVL in downflow and horizontal orientations only. Required for installations from 0 to 2000 ft. (0 to 610 M) above sea level.
3.100K and 120K inducer outlet restrictor
Inducer Outlet Restrictor disk (PN 1188589; 1.50- -in (38- -mm) dia.) available through FAST Parts and is required for no greater than 5- -ft
(1.5- -m) TEVL in downflow and horizontal orientations only. Required for installations from 0 to 2000 ft. (0 to 610 M) above sea level.
Table 15 DEDUCTIONS FROM MAXIMUM EQUIVALENT VENT LENGTH - Feet (Meters)
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
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. Not all furnace families include 140,000 BTUH input models.
4. Vent sizing for Canadian installation over 4500 ft. (1370 m) above sea level are subject to acceptance by local authorities having
jurisdiction.
5. Size both the combustion air and vent pipe independently, then use the larger size for both pipes.
6. Assume two 45° degree elbows equal one 90° degree elbow. Wide radius elbows are desirable and may be required in some cases.
7. Elbow and pipe sections within the furnace casing and at the vent termination should not be included in vent length or elbow count.
8. The minimum pipe length is 5 (1.5) linear feet (meters) for all applications.
9. Use 3--in (76 mm) diameter vent termination kit for installations requiring a 4--in (102 mm) diameter pipe.
Figure 67 Elbows Configurations
LONG MEDIUM
58
Single Stage 92% - Feet/inches
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 85 170
150
145 80 165
15
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
Single-Stage 92% - Meters/mm
2
60,000
64 38 5 64 76
56.3 30.4 53.3 60.9
6.0
53.3 28.9 50.2 56.3
48.7 27.4 47.2 53.3
47.2 25.9 51.8
4.8 45.7
44.1 24.3 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 N/A 16.7 32.0 35.0
1-1/2
8 (2.4)
5 (1.5)
3 (0.9)
4 (1.2)
2.5 (0.8)
1.5 (0.5)
Tee 16 (4.9)
NA
0 (0.0)
MITERED
L11F082
Specifications subject to change without notice.
80,000
1 ½ 2 2 ½ 3 4
15 55 130 175 200
125 165 185
49
115 155 175
150 165
10
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
45.7 50.2
3.0
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
N/A
10.0 24.3 33.5 35.0
9.1 22.8 30.4 32.0
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)
2.5 (0.8) 2.5 (0.8)
1.5 (0.5) 1.5 (0.5)
16 (4.9) 16 (4.9)
0 (0.0) NA
0 (0.0) 0 (0.0)
Figure 68 Vent Terminal Configurations
CONCENTRIC
Gas Furnace: N9MSB
3
100,000 120,000
2 2 ½ 3 4 2 ½
20 80 175 200
10
165 185
15 75
175 5
155
70 170
150 165
10 65
140 155
60 135 145
N/A
55 125 135
50 115 125
N/A
45 100 115
3
100,000 120,000
51 64 76 102 64
6.0 24.3 53.3 60.9
3.0
50.2 56.3
4.5 22.8
53.3 1.5
47.2
21.3 51.8
45.7 50.2
3.0 19.8
42.6 47.2
18.2 41.1 44.1
N/A
16.7 38.1 41.1
15.2 35.0 38.1
N/A
13.7 30.4 35.0
3
8 (2.4) 8
5 (1.5) 5
3 (0.9) 3
4 (1.2) 4
2.5 (0.8) 2.5
1.5 (0.5) 1.5
16 (4.9) 16
0 (0.0)
0 (0.0) 0
STANDARD 2--IN.,
3--IN. OR OPTIONAL
4--IN. TERMINATION
L11F083
440 01 4104 07
3
3 4
75 185
70 175
65 165
160
60
155
50 140
46 130
43 120
39 115
3
76 102
22.8 56.3
21.3 53.3
19.8 50.2
48.7
18.2
47.2
15.2 42.6
14.0 39.6
13.1 36.5
11.8 35.0
4
(2.4)
(1.5)
(0.9)
(1.2)
(0.8)
(0.5)
(4.9)
NA
(0.0)
A13110