Maximum Equivalent Vent Length; Deductions From Maximum Equivalent Vent Length - Carrier 59TN6A Installation, Start-Up, Operating And Service And Maintenance Instructions
Carrier 59tn6a two-stage, variable speed multipoise gas furnace
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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.
Altitude
FT (M)
Unit Size
BTU/Hr
Table 13 - Maximum
Equivalent
Vent Length
- Ft. (M)
0 to 4500 Ft. (0 to 1370 M) Altitude
DIRECT VENT (2-PIPE) AND NON-DIRECT
VENT (1 -PIPE)
Vent Pipe Diameter (in.) ]
2-1/2
1-1/2
I
2
50
I
(15.2)
I
210
I
60 i (9.1) i 165
70
25
I 45 I
(13.7)
I 198
I
27
1(8.2)
1127
64
22
I
69 I (11.9)I 184
I
26 I
(7.0)
I 119
59
19
I
36 I (11.0)I 177
I
21
I
(6.4)
I
115
56
17
40,000
_
(64.0)
250
(76.2)
60, OOO
(41.1)
235
(71.6)
265
(80.8)
0 to 2000
80,000
(21.3)
175
(53.3)
235
(71.6)
265
(80.8)
(0 to 610)
100,OOO
(7.6)
110
(33.5)
235
(71.6)
265
(80.8)
120,000
15
(4.6)
100
(30.5)
250
(76.2)
140,000
4
10
(6.0)
90
(27.4)
210
(64.0)
40,000
(60.4)
232
(70.7)
60,000
(38.7)
222
(67.7)
250
(76.2)
2001
to 3000
80,000
(19.5)
165
(50.3)
222
(67.7)
249
(75.9)
(610 to 914)
100,OOO
(6.7)
104
(31.7)
223
(68.0)
250
(76.2)
120,000
11
(6.4)
96
(28.6)
237
(72.2)
140,000
4
80
(24.4)
185
(56.4)
40,000
(56.1)
214
(65.2)
60,000
(36.3)
210
(64.0)
235
(71.6)
3001
to 4000
80,000
(18.0)
155
(47.2)
210
(64.0)
232
(70.7)
(914 to 1219)
100,OOO
(5.8)
96
(29.9)
211
(64.3)
236
(71.9)
120,000
6
(2.4)
66
(26.2)
224
(68.3)
140,000
4
79
(24.1)
158
(48.2)
40,000
(53.9)
205
(62.5)
60, OOO
(35.1)
204
(62.2)
228
(69.5)
4001
to 4500
80,000
(17.1)
150
(45.7)
202
(61.6)
224
(68.3)
(1219
to
100,OOO
(5.2)
94
(28.7)
205
(62.5)
229
(69.8)
1370)
120,000
86
(25.6)
217
(66.1)
140,000
4
69
(21 .O)
146
(44.5)
NOTES: See notes at end of venting tables.
See Table 15 for altitudes over 4500 ft. (1370 M)
ELBOW CONFIGURATIONS
Medium
Mitered
Long
VENT TERMINAL CONFIGU RATIONS
Concentric
"-LL-- J
ton or
Al1580
Table
14 - Deductions
from
Maximum
Equivalent
Vent Length
- Ft. (M)
Pipe Diameter (in):
1-1/2
2
2-1/2
3
4
Mitered 90 ° Elbow
8
(2.4)
8
(2.4)
8
(2.4)
8
(2.4)
8
(2.4)
Medium
Radius 90 ° Elbow
5
(1.5)
5
(1.5)
5
(1.5)
5
(1.5)
5
(1.5)
Long Radius 90 ° Elbow
3
(0.9)
3
(0.9)
3
(0.9)
3
(0.9)
3
(0.9)
Mitered
46 ° Elbow
4
(1.2)
4
(1.2)
4
(1.2)
4
(1.2)
4
(1.2)
Medium
Radius 46 ° Elbow
2.5
(0.8)
2.5
(0.8)
2.5
(0.8)
2.5
(0.8)
2.5
(0.8)
Long Radius 46 ° 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)
Concentric
Vent Termination
O
(O.O)
O
(O.O)
Standard
Vent Termination
O
(O.O)
O
(O.O)
O
(O.O)
O
(O.O)
O
(O.O)
47
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