Carrier 59SC2D - Deductions from Maximum Equivalent Vent Length; Maximum Equivalent Vent Length

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Table 13 – Maximum Equivalent Vent Length
NOTE: Maximum Equivalent Vent Length (MEVL) includes standard and concentric vent termination and does NOT include elbows.
Use Table 14 - Deductions from Maximum Equivalent Vent Length to determine allowable vent length for each application.
Single Stage 92% --- Ft.
Unit Size 40,000
1
60,000
2
80,000 100,000
3
120,000
3
Altitude
(feet)
Pipe Dia. (in) 1½ 2 2½ 1½ 2 2½ 3 1½ 2 2½ 3 4 2 2½ 3 4 2½ 3 4
0---2000 20 85 185
20
100 175 200 15 55 130 175 200 20 80 175 200
10
75 185
2001---3000
15
80 175 95 165 185
10
49
125 165 185
15 75
165 185 70 175
3001---4000
70
160 16 90 155 175 115 155 175
155
175 5 65 165
4001---4500
10
155
15
85
150
170
44 110
150 165
10
70 170
N/A
60
160
4501---5000 145 80 165 145 160
65
150 165
5001---6000 60 130 75 140 155 41 100 135 150 140 155 155
6001---7000
5
55 120 13 70 130 145
N/A
38
90
125 140 60 135 145 50 140
7001---8000 50 110 10 65 120 135 36 120 125
N/A
55 125 135 46 130
8001---9000
N/A
30 95 5 60 115 125 33 80 110 115 50 115 125 43 120
9001---10000 25 85 N/A 55 105 115 30 75 100 105 45 100 115 39 115
Single Stage 92% --- Meters
Unit Size 40,000
1
60,000
2
80,000 100,000
3
120,000
3
Altitude
(meters)
Pipe Dia.
(mm)
38 51 64 38 5 64 76 38 51 64 76 102 51 64 76 102 64 76 102
0 --- 6 1 0 6.0 25.9 56.3
6.0
30.4 53.3 60.9 4.5 16.7 39.6 53.3 60.9 6.0 24.3 53.3 60.9
3.0
22.8 56.3
611---914
4.5
24.3 53.3 28.9 50.2 56.3
3.0
14.9
38.1 50.2 56.3
4.5
22.8 50.2 56.3 21.3 53.3
915---1219
21.3
48.7 4.8 27.4 47.2 53.3 35.0 47.2 53.3 0.0
47.2
53.3 1.5 19.8 50.2
1220---1370
3.0
47.2
4.5
25.9
45.7
51.8
13.4
33.5 45.7 50.2
3.0
21.3 51.8
N/A
18.2
48.7
1371---1524 44.1 24.3 50.2 0.0 44.1 48.7 19.8 45.7 50.2
1525---1829 18.2 39.6 22.8 42.6 47.2 12.4 30.4 41.1 45.7 0.0 42.6 47.2 47.2
1830---2134
1.5
16.7 36.5 3.9 21.3 39.6 44.1
N/A
11.5 27.4 .1 42.6 18.2 41.1 44.1 15.2 42.6
2135---2438 15.2 33.5 3.0 19.8 36.5 41.1 10.9 0.0 36.5 38.1
N/A
16.7 38.1 41.1 14.0 39.6
2439---2743
N/A
9.1 28.9 1.5 18.2 35.0 38.1 10.0 24.3 33.5 35.0 15.2 35.0 38.1 13.1 36.5
2744---3048 7.6 25.9 N/A 16.7 32.0 35.0 9.1 22.8 30.4 32.0 13.7 30.4 35.0 11.8 35.0
NOTES:
1. Inducer Outlet Restrictor disk (P/N 337683---401; 1.25 ---in. (32 mm) Dia.) shipped in the loose parts bag or a vailable through Replacement C o mponen ts
required under 10---ft. (3 M) TEVL in al l orientations. Required f or installations from 0 --- 2000 (0 to 610 M) a bove sea level . Failure to use a n outlet restric-
tor may result in flame disturbances or f lame sense lock---out.
2. Inducer Outlet Restrictor disk (P/N 337683---401; 1.25 ---in. (32 mm) Dia.) ava ilable through Replacement C omponents required for n o greater than 5 --- f t . ( 1 . 5
M) T EVL in downflow and h orizontal orientations only. Required for installations from 0 --- 2000 (0 to 610 M) above sea level.
3. Inducer Outlet Restrictor disk (P/N 337683---402; 1.50 ---in. (38 mm) Dia.) ava ilable through Replacement C omponents required for n o greater than 5 --- f t . ( 1 . 5
M) T EVL in downflow and h orizontal orientations only. Required for installations from 0 --- 2000 (0 to 610 M) above sea level.
A13110
Table 14 – Deductions from Maximum Equivalent Vent Length -- Ft. (M)
Pipe Diameter (in): 1-1/2 2 2-1/2 3 4
Mitered 90º Elbow 8 (2.4) 8 (2.4) 8 (2.4) 8 (2.4) 8 (2.4)
Medium Radius 90º Elbow 5 (1.5) 5 (1.5) 5 (1.5) 5 (1.5) 5 (1.5)
Long Radius 90º Elbow 3 (0.9) 3 (0.9) 3 (0.9) 3 (0.9) 3 (0.9)
Mitered 45º Elbow 4 (1.2) 4 (1.2) 4 (1.2) 4 (1.2) 4 (1.2)
Medium Radius 45º Elbow 2.5 (0.8) 2.5 (0.8) 2.5 (0.8) 2.5 (0.8) 2.5 (0.8)
Long Radius 45º Elbow 1.5 (0.5) 1.5 (0.5) 1.5 (0.5) 1.5 (0.5) 1.5 (0.5)
Tee 16 (4.9) 16 (4.9) 16 (4.9) 16 (4.9) 16 (4.9)
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.
9. A running Tee in the Combustion Air Pipe adds 0 ft. to the TEVL of the vent length.