24
Table 13 – Water Side Pressure Drop PSIG
Model
GPM
Pressure Drop (PSI)
30ºF
40ºF
50ºF
60ºF
70ºF
80ºF
90ºF
100ºF
110ºF
GZ024
3
0.8
0.8
0.8
0.7
0.7
0.7
0.7
0.6
0.6
4
1.4
1.3
1.3
1.3
1.2
1.2
1.1
1.0
1.0
6
2.9
2.8
2.6
2.6
2.5
2.4
2.3
2.2
2.1
GZ036
4.5
1.6
1.5
1.4
1.3
1.3
1.2
1.2
1.2
1.1
6
2.7
2.6
2.4
2.2
2.2
2.1
2.0
2.0
1.9
9
5.5
5.3
4.8
4.6
4.5
4.4
4.2
4.1
4.0
GZ048
6
1.3
1.3
1.1
1.1
1.1
1.1
1.0
1.0
0.9
8
2.2
2.1
1.9
1.8
1.8
1.7
1.7
1.6
1.6
12
4.5
4.4
4.0
3.8
3.7
3.6
3.5
3.4
3.3
GZ060
7.5
1.4
1.3
1.2
1.2
1.1
1.1
1.1
1.0
1.0
10
2.3
2.2
2.0
2.0
1.9
1.8
1.8
1.7
1.7
15
4.8
4.7
4.2
4.1
3.9
3.8
3.7
3.6
3.5
GZ072
9
1.0
1.0
0.9
0.9
0.9
0.8
0.8
0.8
0.8
12
1.7
1.7
1.5
1.5
1.4
1.4
1.3
1.3
1.3
18
3.6
3.5
3.2
3.1
3.0
2.9
2.8
2.7
2.6
This chart shows approximate temperatures and pressures for a unit in good repair. The values shown are meant as a guide only and should not be used to
estimate system charge. This chart assumes rated air flow and 80°F d.b./67°F w.b. entering air temperature in cooling, 70°F d.b. entering air temperature in
heating. Heating data at entering fluid temperatures below 50°F assumes the use of antifreeze. As a result of continuing research and development, specifica-
tions are subject to change without notice.