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ACA Series motor data

CLASS I,DIV.1, GROUP D or CLASS II,DIV.2, GROUP F & G EXPLOSION PROOF MOTOR DATA

Enclosure Type

Horse Power

NEMA Frame

Full Load Amperes 5.0/2.5 0.7/1.4 6.8/3.4 0.8/1.6 10.8/5.4 2.8/1.4 10.8/5.4 2.8/1.4 3.8/1.9 3.8/1.9 3.8/1.9 7.82/3.91 13.66/6.83 13.66/6.83 19.46/9.73 26.6/13.3

Service Factor

Thermal Overload

Model

Phase

Volts

RPM

EXP EXP EXP EXP EXP EXP EXP EXP EXP EXP EXP EXP EXP EXP EXP EXP

1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0

48 48 56 56 56 56 56 56 56 56 56

1800 1800 1200 1200 1200 1200 1200 1200 1200 1200 1200 1800 1200 1200 1200 1200

115/230 230/460 115/230 230/460 115/230 230/460 115/230 230/460 230/460 230/460 230/460 230/460 230/460 230/460 230/460 230/460

60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60

1 3 1 3 1 3 1 3 3 3 3 3 3 3 3 3

.25 .25 .33 .33 .75 .75 .75 .75 1.0 1.0 1.0 3.0 5.0 5.0 7.5 10.0

ACA-3181/2-1 ACA-3181/2-3 ACA-3241/2-1 ACA-3241/2-3 ACA-3301/2-1 ACA-3301/2-3 ACA-4301/2-1 ACA-4301/2-3 ACA-6301/2-3 ACA-3361/2-3 ACA-4361/2-3 ACA-6361/2-3 ACA-6421/2-3 ACA-6481/2-3 ACA-6541/2-3 ACA-6601/2-3

YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES

182T 215T 215T 254T 256T

NOTE: All of our ACA Series are available in 50hz upon request as a special

COMMON DATA Sound Level dB(A) @ 7ft

Weight w/ motor w/o motor

Air Flow

NOTES:

Serviceable Core

Model

m 3 /s

CFM

TEFC = Totally Enclosed, Fan Cooled

131 154 184 211 343 243 289 402 636 753 938 1104

111 134 160 187 305 205 251 342 443 560 691 835

72 76 76 76 76 79 79 91 87 88 91 91

NO NO NO NO YES

0.731 1.36 2.10 2.10 2.10 2.99 2.99 4.95 6.75 8.82 11.02 13.83

ACA-3181/2 ACA-3241/2 ACA-3301/2 ACA-4301/2 ACA-6301/2 ACA-3361/2 ACA-4361/2 ACA-6361/2 ACA-6421/2 ACA-6481/2 ACA-6541/2 ACA-6601/2

1550 2900 4450 4450 4450 6350 6350

To estimate the sound level at distances other than 7 feet (2.1 meters) from the cooler, add 6 db for each halving of distance, or substract 6 db for each doubling of the distance. Example: The Sound Level of the ACA-3181/2 is 72 dB at 7ft. At 3.5ft (7ft x 0.5 = 3.5ft) the sound level is 66 dB (72dB - 6dB = 66dB). At 14ft (7ft x 2 = 14ft) the sound level is 78dB (72dB + 6dB = 78dB).

NO NO

YES YES YES YES YES

10500 14300 18700 23350 29300

Pressure Drop Graphs (see page 237)

Each graph represents a specific pressure drop at differing flow rates and inlet pressures. The four graphs for each model series size represents the more popular milestone pressure differentials commonly applied.

To use the graphs for selection purposes follw the steps below.

1) Locate the operating pressure at the bottom of the desired pressure drop chart. 2) Locate the flow rate in SCFM at the left end of the chart. 3) Follow the "Pressure" line vertically and the "Flow" line horizontally until they cross, note the location. 4) The curve on, or closest above will be exact or less pressure drop than requested and suitable for the application. 5) There may be several units shown above the intersection point, all of which will produce less than the desired pressure drop at the required flow. Example: Application 3 Low Pressure Blower

Flow = 76 SCFM • Operating pressure = 2 PSIG • Initial selection from graph page 215 = ACA-3302 Desired pressure drop = 5" H2O or less. (USE the "Pressure Drop 5" H20" curves page 237)

From the pressure drop graph, page 237. Acceptable choice - ACA-3302 is on the line, ACA-3242 is well below the line. The ACA- 3302 meets the pressure drop requirement, but exceeds the capacity requirement. However, even though the ACA-3242 exceeds 5" of water pressure drop, other considerations should be made prior to selection such as unit physical size, cost, availability, and port size.

note: AIHTI reserves the right to make reasonable design changes without notice.

237

tel: 434-757-1800 355 American Industrial Drive LaCrosse, VA 23950

email: sales@aihti.com fax: 434-757-1810

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