Bryant 986TB - Page 53

53
Winter
Design
Temp
°C
Unit Size 120,000 BTUH 140,000 BTUH
Uninsulated
3/8in. Insulation 1/2in. Insulation
Uninsulated 3/8in. Insulation 1/2in. Insulation
Pipe Dia.
mm
64 76 102 64 76 102 64 76 102 64 76 102 64 76 102 64 76 102
-7 3.0 15.2 12.2 3.0 22.9 28.9 3.0 22.9 32.0 1.5 16.7 15.2 1.5 19.8 32.0 1.5 19.8 38.1
-18 3.0 6.1 4.6 3.0 16.8 13.7 3.0 19.8 15.2 1.5 7.6 4.6 1.5 19.8 15.2 1.5 19.8 18.3
-29 3.0 3.0 3.0 10.7 7.6 3.0 13.7 9.1 1.5 3.0 1.5 1.5 13.7 9.1 1.5 15.2 12.2
40 3.0 1.5 3.0 7.6 4.6 3.0 9.1 6.1 1.5 1.5 1.5 9.1 6.1 1.5 35 7.6
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.
Table 16 – Maximum Equivalent Vent Length − Ft.
Unit Size 60,000
1
80,000 100,000
2
120,000
Altitude
(feet)
Pipe Dia. (in) 1 ½ 2 2 ½ 3 1 ½ 2 2 ½ 3 4 2 2 ½ 3 4 2 ½ 3 4
0-2000
20
100 175 200 15 55 130 175 200 20 80 175 200
10
75 185
2001-3000 95 165 185
10
49
125 165 185
15 75
165 185 70 175
3001-4000 16 90 155 175 115 155 175
155
175 5 65 165
4001-4500
15
85 150 170
44 110
150 165
10
70 170
N/A
60
160
4501-5000 80 145 165 145 160
65
150 165
5001-6000 75 140 155 41 100 135 150 140 155 155
6001-7000 13 70 130 145
N/A
38
90
125 140 60 135 145 50 140
7001-8000 10 65 120 135 36 120 125
N/A
55 125 135 46 130
8001-9000 5 60 115 125 33 80 110 115 50 115 125 43 120
9001-10000 N/A 55 105 115 30 75 100 105 45 100 115 39 115
Maximum Equivalent Vent Length - Meters
Unit Size 60,000
1
80,000 100,000
2
120,000
Altitude
(meters)
Pipe Dia.
(mm)
38 51 64 76 38 51 64 76 102 51 64 76 102 64 76 102
0-610 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 0.0 28.9 50.2 56.3
3.0
14.9 38.1 50.2 56.3
4.5 22.8
50.2 56.3 0.0 21.3 53.3
915-1219 4.8 27.4 47.2 53.3 0.0 35.0 47.2 53.3
47.2
53.3 1.5 19.8 50.2
1220-1370
4.5
25.9 45.7 51.8
13.4 33.5
45.7 50.2
3.0
21.3 51.8
NA
18.2
48.7
1371-1524 24.3 44.1 50.2 44.1 48.7
19.8
45.7 50.2
1525-1829 22.8 42.6 47.2 12.4 30.4 41.1 45.7 42.6 47.2 47.2
1830-2134 3.9 21.3 39.6 44.1
NA
11.5
27.4
38.1 42.6 18.2 41.1 44.1 15.2 42.6
2135-2438 3.0 19.8 36.5 41.1 10.9 36.5 38.1
NA
16.7 38.1 41.1 14.0 39.6
2439-2743 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 NA 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.) available through Replacement Components required for no greater than 5-ft. (1.5
M) TEVL in downflow and horizontal orientations only. Required for installations from 0-2000 ft. (0 to 610 M)above sea level.
2. Inducer Outlet Restrictor disk (P/N 337683-402; 1.50-in. (38 mm) Dia.) available through Replacement Components required for no greater than 5-ft. (1.5
M) TEVL in downflow and horizontal orientations only. Required for installations from 0-2000 ft. (0 to 610 M)above sea level.
986TB