Sterling ERMS - Manual (Page 15)

3
Wheel effecti veness, airflow and pressure drop are
determined by the selection of energy transfer
segments whic h provide a wide range of performance
characteris tics for any given wheel size as outlined in
the charts below.
PERFORMANCE
ERC-4639
CFM EFF
•
P
2300 77 0.57
2500 76 0.62
2700 75 0.66
2900 74 0.71
3000 73 0.74
3500 71 0.86
3900 69 0.96
4000 68 0.98
4500 66 0.98
4750 65 1.11
ERC-3625
CFM EFF • P
1800 73 0.74
1900 72 0.78
2000 71 0.82
2100 71 0.86
2200 70 0.90
2300 69 0.94
2400 68 0.99
2500 68 1.03
2600 67 1.07
2700 66 1.11
ERC-5255
CFM EFF
•
P
2900 77 0.57
3000 76 0.59
3500 74 0.69
3900 73 0.77
4000 72 0.79
4500 70 0.89
4750 69 0.94
5000 68 0.99
5500 66 1.09
6000 65 1.18
ERC-3615
CFM EFF
•
P
800 86 0.51
900 85 . 057
1000 85 0.63
1100 84 0.70
1200 83 0.76
1300 82 0.82
1400 82 0.89
1500 81 0.95
1600 80 1.01
1700 79 1.08
ERC-5230
CFM EFF
•
P
1600 86 0.53
1800 86 0.59
2000 85 0.66
2200 84 0.72
2400 84 0.79
2600 83 0.86
2800 82 0.92
3000 81 0.99
3500 80 1.15
3900 79 1.28
ERC-3623
CFM EFF • P
1500 76 0.64
1700 75 0.72
1800 74 0.77
1900 73 0.81
2000 72 0.85
2100 72 0.89
2200 71 0.94
2300 70 0.98
2400 69 1.02
2500 69 1.07
ERC-5245
CFM EFF
•
P
2400 80 0.51
2600 79 0.55
2800 78 0.60
3000 77 0.64
3500 75 0.74
3900 74 0.83
4000 73 0.85
4500 71 0.96
4750 70 1.01
5000 69 1.06
ERC-5860
CFM EFF • P
2600 82 0.44
3000 80 0.50
3500 78 0.58
4000 77 0.67
4500 75 0.75
4750 74 0.79
5000 73 0.83
5500 72 0.92
6000 70 1.00
6250 69 1.08
ERC-7460
CFM EFF • P
3000 88 0.50
3500 87 0.58
3900 86 0.65
4000 86 0.67
4500 85 0.75
5000 84 0.83
5500 84 0.92
6000 83 1.00
6500 82 1.08
7000 81 1.17
ERC-7490
CFM EFF
•
P
5000 79 0.50
5500 78 0.55
6000 77 0.60
6500 76 0.65
7000 75 0.70
7500 74 0.75
8000 73 0.80
9000 72 0.90
10000 70 1.00
11000 69 1.10
ERC-6445
CFM EFF
•
P
2700 86 0.59
2800 86 0.50
2900 85 0.61
3000 85 0.65
3500 84 0.67
3900 84 0.82
4000 83 0.85
4500 82 1.00
5000 82 1.05
5500 81 1.16
ERC-6475
CFM EFF
•
P
4000 78 0.53
4500 77 0.60
5000 76 0.67
5500 75 0.73
6000 73 0.80
6500 72 0.87
7000 71 0.93
7500 70 1.00
8000 69 1.05
9000 67 1.18
ERC-86170
CFM EFF • P
9000 77 0.57
10000 75 0.64
11000 74 0.70
12000 73 0.77
13000 72 0.83
14000 71 0.89
15000 69 0.96
16000 68 1.02
17000 67 1.08
18000 66 1.15
RECEIVING INSPECTION
Inspect all cassettes for freight damage upon receipt.
Inspect cassette frame, wheel assembly and segments
for damage and verify wheel turns freely by hand
(c lockwise when v iewed from pul ley side). Report any
damage immedi ately to the freight company.
HANDLING
Handle cassettes with care . All cassettes should be
lifted by the bearing support beam. Holes are provided
on both si des of the bearing support beams to facilitate
rigging (see page 4, Figure 1).
Models ERC-64 Series and larger are shi pped with
wheel segments removed from the wheel frame to
facilitate installation of cassette into unit. Segments
should be properly stored during installati on of cassette
to avoid damage on the factory floor (See page 6,
Figures 4 & 5 for segment ins tallation).
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