Sterling ERMS - Manual (Page 14)

2
SPECIFICATIONS
SERIES 36 thru SERIES 86
The Models ERC-36 through ERC-86 Series
cassette frames are constructed of heavy gauge G90
galvanized steel. The wheel assembly and segment
frames are stainless steel. With the exception of
replaceable drive motors, belts and segments, the
cassette has a minimum design life of 20 years.
Wheel effectiveness and pressure drop are
determined by the selection of air flow as outlined in
the charts below.
The first two digits of the model number indicate the
wheel diameter in inches. The next two digits (three
in the 86 series) indicate the recommended
maximum airflow rating (in hundreds of cubic feet per
minute).
SERIES A B C D E F G
ERC-36 39.82 39.82 2.86 18.48 4.36 1.31 2.25
ERC-46 50.00 50.00 4.27 22.87 4.36 1.58 3.72
ERC-52 56.19 56.19 4.27 25.96 4.36 1.58 3.72
ERC-58 62.42 62.42 5.00 28.71 4.36 2.05 3.72
ERC-64 68.00 68.00 5.00 31.50 6.07 2.05 6.50
ERC-74 78.00 78.00 6.00 36.00 7.07 2.05 6.00
ERC-86 91.00 91.00 7.00 42.00 10.00 3.00 4.03
DIMENSIONS
SERIES WEIGHT
(lbs)
WHEEL SPEED
(rpm)
ERC-36 89 58
ERC-46 150 60
ERC-52 188 57
ERC-58 254 53
ERC-64 400 58
ERC-74 418 54
ERC-86 670 50
SERIES VOLTS AMPS PH HZ
ERC-36 200-208/240 1.1 max. 1 50/60
ERC-46 200-208/240 2.7 max. 1 50/60
ERC-52 200-208/240 2.7 max. 1 50/60
ERC-58 200-230/460 1.3-1.2/0.6 3 60
ERC-64 200-230/460 1.3-1.2/0.6 3 60
ERC-74 200-230/460 1.3-1.2/0.6 3 60
ERC-86 200-230/460 1.3-1.2/0.6 3 60
Page 12 of 26 Page 14 of 28