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Performance Data
Table 2.
Tubular duct furnace performance data
Input
(Max) MBh
(Min) MBh
Unit Size
(kW)
100
100
(29.3)
150
150
(43.9)
200
200
(58.6)
250
250
(73.2)
300
300
(87.8)
350
350
(102.5)
400
400
(117.1)
Notes:
1. Ratings are shown for unit installations at elevations between 0 and 2,000 feet (610m).
2. For unit installations in U.S.A. above 2,000 feet (610 m), the unit input must be field derated 4 percent for each 1,000 feet (305 m) above sea level;
refer to local codes, or in absence of local codes, refer to the latest edition of the National Fuel Gas Code, ANSI Standard Z223.1 (NFPA 54).
3. For installations in Canada, any references to deration at altitudes in excess of 2,000 feet (610 m) are to be ignored. At altitudes of 2,000 to
4,500 feet (610 to 1372 m), the unit must be field derated and be so marked in accordance with the ETL certification.
4. See
Table 10
and
Table 11, p. 29
Figure 4.
Temperature rise and pressure drop graph
0
1
1.4
1.2
1
0.8
0.6
0.4
0.2
0
100
90
80
70
60
50
40
30
Size 100
20
10
0
2000
GUNE-SVX001A-EN
Output
Min CFM
(kW)
MBh (kW)
(m
50
82
758
(14.6)
(24.0)
(0.357)
75
123
1137
(21.9)
(36.0)
(0.536)
100
164
1517
(29.3)
(48.0)
(0.715)
125
205
1896
(36.6)
(60.0)
(0.894)
150
246
2275
(43.9)
(72.0)
(1.074)
175
287
2654
(51.2)
(84.1)
(1.252)
200
328
3034
(58.6)
(96.1)
(1.431)
for U.S.A. and Canadian field deration information.
3
m
/s
2
3
Size 150
Size 100
Size 150
Size 200
Size 250
4000
6000
Airflow (CFM)
Temp rise
P.D. in. wc
3
/s)
°F (°C)
(kPa)
100
0.07
(56)
(0.017)
100
0.03
(56)
(0.007)
100
0.04
(56)
(0.009)
100
0.08
(56)
(0.019)
100
0.03
(56)
(0.007)
100
0.07
(56)
(0.017)
100
0.08
(56)
(0.019)
4
Size 200
Size 250
Size 400
Size 300
Size 350
Size 300
Size 350
Size 400
8000
10000
Max CFM
Temp rise
3
(m
/s)
°F (°C)
2528
30
(1.193)
(17)
3792
30
(1.789)
(17)
5057
30
(2.386)
(17)
6321
30
(2.983)
(17)
7585
30
(3.579)
(17)
8849
30
(4.176)
(17)
10,114
30
(4.773)
(17)
5
300
275
250
225
200
175
150
125
100
75
50
25
0
56
51
46
41
36
31
26
21
16
11
6
P.D. in. wc
(kPa)
0.65
(0.16)
0.44
(0.11)
0.54
(0.13)
0.76
(0.19)
0.69
(0.16)
0.76
(0.19)
0.70
(0.17)
9
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