Residential H&V - 60Hz R22 &R410A
Rev.: 22 Dec, 2008
38
Water-Source Heating and Cooling Systems
Table 9a: TT Coax Water Pressure Drop Table 9b: TS Coax Water Pressure Drop
Table 9c: GS Coax Water Pressure Drop
Unit Operating Conditions
Table 10: Water Temperature Change Through Heat
Exchanger
Model GPM
Pressure Drop (psi)
30°F 50°F 70°F 90°F
026
4.0
6.0
7.0
8.0
1.5
3.1
4.1
5.1
1.3
2.6
3.4
4.3
1.1
2.3
3.0
3.8
1.0
2.1
2.7
3.4
038
4.0
6.0
8.0
9.0
1.2
2.6
4.5
5.7
1.0
2.5
4.2
5.2
0.8
2.3
4.0
4.8
0.6
2.1
3.7
4.4
049
5.5
8.3
11.0
12.0
1.1
2.2
3.9
4.5
0.9
2.1
3.6
4.2
0.8
2.0
3.2
3.8
0.7
1.8
3.1
3.5
064
7.0
10.5
14.0
15.0
0.5
1.9
3.9
4.8
0.3
1.8
3.5
4.3
0.2
1.7
3.2
3.9
0.1
1.6
2.9
3.5
072
7.5
11.3
15.0
17.0
1.7
3.9
6.9
8.9
1.5
3.4
6.0
7.7
1.3
3.0
5.4
6.9
1.3
2.8
5.0
6.5
Model GPM
Pressure Drop (psi)
30°F 50°F 70°F 90°F
015
1.8
2.8
3.8
0.6
1.0
1.5
0.5
0.9
1.4
0.5
0.8
1.3
0.5
0.8
1.2
018
2.2
3.5
4.5
0.7
1.3
1.8
0.7
1.2
1.8
0.6
1.1
1.6
0.6
1.1
1.5
024
3.0
4.5
6.0
0.6
1.1
1.8
0.6
1.1
1.7
0.5
1.0
1.5
0.5
0.9
1.5
030
3.7
5.5
7.5
0.8
1.6
2.6
0.8
1.4
2.4
0.7
1.3
2.2
0.7
1.3
2.1
036
4.5
7.0
9.0
1.3
2.1
3.9
1.2
1.9
3.7
1.1
1.7
3.4
1.1
1.7
3.2
042
5.5
8.0
10.5
1.6
3.2
5.1
1.5
3.0
4.7
1.4
2.8
4.4
1.3
2.6
4.1
048
6.0
9.0
12.0
2.1
3.9
6.4
1.9
3.7
5.9
1.8
3.4
5.5
1.7
3.2
5.2
060
7.5
11.3
15.0
1.1
2.2
3.6
1.0
2.1
3.4
1.0
1.9
3.1
0.9
1.8
3.0
070
9.0
13.5
18.0
1.5
3.0
5.0
1.4
2.8
4.7
1.3
2.6
4.3
1.2
2.5
4.1
Model GPM
Pressure Drop (psi)
30°F 50°F 70°F 90°F
018
2.8
4.1
5.5
0.7
2.1
3.5
0.5
1.7
2.8
0.3
1.4
2.4
0.2
1.1
2.0
024
4.0
6.0
8.0
1.5
3.1
5.1
1.3
2.6
4.3
1.1
2.3
3.8
1.0
2.1
3.4
030
4.0
6.0
8.0
1.5
3.1
5.1
1.3
2.6
4.3
1.1
2.3
3.8
1.0
2.1
3.4
036
4.5
6.8
9.0
1.7
3.3
5.7
1.3
3.1
5.2
1.1
2.9
4.8
0.9
2.6
4.4
042
5.5
8.3
11.0
1.1
2.2
3.9
0.9
2.1
3.6
0.8
2.0
3.2
0.7
1.8
3.1
048
6.0
9.0
12.0
1.3
2.6
4.5
1.1
2.5
4.2
1.0
2.3
3.8
0.9
2.2
3.5
060
7.5
11.3
15.0
0.6
2.3
4.8
0.4
2.1
4.3
0.3
2.0
3.9
0.2
1.8
3.5
070
8.3
12.4
16.5
2.4
5.2
8.0
2.0
4.5
7.0
1.7
4.0
6.3
1.6
3.8
6.0
Section 10 - Packaged IOM 38 4/24/09 3:16:54 PM
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