RT-SVX073A-EN
109
Table 49. Energy recovery wheel component static pressure drops — dampers (continued)
Tons CFM
Return Damper,
ERW only
Econo Damper,
ERW only
130-150
23000 0.25 0.21
26000 0.32 0.27
30000 0.42 0.36
35000 0.57 0.5
40000 0.75 0.65
45000 0.96 0.83
50000 1.19 1.02
55000 1.45 1.24
58000 1.63 1.38
Table 50. Energy recovery wheel pressure loss ΔP (in. wg) and total effectiveness
Actual
Airflow
CFM
90-105 Tons
Low
120 Tons
Low
130-150 Tons Low 90 Tons Standard 105 Tons Standard 120 Tons Standard
130-150 Tons
Standard
ΔP Eff ΔP Eff ΔP Eff ΔP Eff ΔP Eff ΔP Eff ΔP Eff
8000 0.73 77.50 0.64 79.00 0.58 80.00 0.49 81.60 — — — — — —
9000 0.82 75.90 0.72 77.60 0.65 78.70 0.55 80.60 0.51 81.30 — — — —
10000 0.91 74.30 0.80 76.20 0.73 77.50 0.61 79.50 0.56 80.30 0.49 81.60 — —
11000 1.00 72.70 0.88 74.80 0.80 76.20 0.67 78.50 0.62 79.40 0.54 80.70 — —
12000 1.09 71.10 0.96 73.40 0.87 75.00 0.73 77.40 0.67 78.40 0.59 79.80 — —
13000 1.18 69.50 1.04 72.00 0.94 73.70 0.79 76.40 0.73 77.40 0.64 79.00 0.48 74.70
14000 — — 1.12 70.60 1.02 72.40 0.85 75.30 0.79 76.50 0.69 78.10 0.51 72.90
15000 — — 1.20 69.20 1.09 71.10 0.91 74.30 0.84 75.50 0.74 77.30 0.55 71.90
16000 — — — — 1.16 69.80 0.97 73.20 0.90 74.50 0.79 76.40 0.58 71.00
17000 — — — — 1.24 68.50 1.03 72.10 0.95 73.50 0.83 75.60 0.61 70.00
18000 — — — — — — 1.09 71.10 1.01 72.50 0.88 74.70 0.64 69.00
19000 — — — — — — 1.15 70.00 1.07 71.50 0.93 73.90 0.67 68.10
20000 — — — — — — 1.22 68.90 1.12 70.50 0.98 73.00 0.71 67.10
21000 — — — — — — — — 1.18 69.50 1.03 72.10 0.74 66.10
22000 — — — — — — — — 1.23 68.50 1.08 71.30 0.77 65.10
23000 — — — — — — — — — — 1.13 70.40 0.80 64.20
24000 — — — — — — — — — — 1.18 69.50 0.84 63.20
25000 — — — — — — — — — — 1.23 68.70 0.87 62.20
26000 — — — — — — — — — — — — 0.90 61.20
27000 — — — — — — — — — — — — 0.93 60.30
28000 — — — — — — — — — — — — 0.97 59.30
29000 — — — — — — — — — — — — 1.00 58.30
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