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Installation - Mechanical
Partial Heat Recovery Pressure Drop
Curves
Figure 57.
Partial heat recovery pressure drop curve —
60 Hz
8
7
6
52/60
35
5
40
26/30
4
20
3
2
1
0
0
20
PHR Water Flow Rate (gpm)
Table 23.
Partial heat recovery flow rates — 60 Hz
Size
Nominal Flow
(gpm)
(a)
Rate
Maximum Flow Rate
(gpm)
(a) Water temperature inlet 122°F, outlet 131°F
Table 24.
Partial heat recovery flow rates — 50 Hz
Size
Nominal Flow
(gpm)
(a)
Rate
Maximum Flow Rate
(gpm)
(a) Water temperature inlet 122°F, outlet 131°F
Note: Partial heat recovery may function at flow rates near zero. However, heat transfer performance is severely reduced
and water flow distribution is poor.
56
90/100/110 120/130
80
70
40
60
80
20
26
30
35
13
19
18
24
39
39
39
39
20
26
30
35
11
15
16
20
39
39
39
39
Figure 58. Partial heat recovery pressure drop curve —
50 Hz
12
10
8
30/35
6
20/26
4
2
0
100
0
20
PHR Water Flow Rate (gpm)
40
52
60
70
26
39
37
50
79
79
79
79
40
52
60
70
21
30
32
40
79
79
79
79
80/90/100
60/70
110/120
40/52
40
60
80
80
90
100
110
46
59
61
70
127
127
127
127
80
90
100
110
39
47
48
58
127
127
127
127
100
120
120
130
83
79
127
127
120
130
65
11
127
39
CG-SVX17E-EN
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