Installation & Operation Manual
30
6
Hydronic piping
Figure 41
Pressure Drop vs. Flow - Models 80 - 210
Figure 42
Pressure Drop vs. Flow - Models 285 - 500
SYSTEM TEMPERATURE RISE CHART
(*Includes Boiler Secondary Piping)
Model
25°F
30°F
35°F
40°F
45°F
GPM
FT/HD
GPM
FT/HD
GPM
FT/HD
GPM
FT/HD
GPM
FT/HD
80
5.9
15.0
4.9
11.5
4.2
7.3
3.7
6.0
3.3
5.7
105
7.7
17.5
6.4
12.1
5.5
9.3
4.8
7.8
4.3
6.0
150
11.0
12.8
9.2
11.0
7.9
9.5
6.9
8.5
6.1
7.1
210
15.5
19.0
12.9
13.0
11.0
9.1
9.7
8.0
8.6
7.1
285
21.0
11.5
17.5
9.1
15.0
7.3
13.1
6.1
11.7
5.0
399
29.4
14.1
24.5
10.3
21.0
7.5
18.4
6.5
16.3
5.5
500
36.8
15.5
30.7
12.5
26.3
9.4
23.0
7.3
20.5
6.3
*Boiler secondary system piping based on 20 feet of piping, 4 - 90° elbows, and 2 - fully ported ball valves.
Table 5
System Temperature Rise Chart
