Performance, Receiving inspection, Handling – Sterling ERMS User 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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