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Suggested Minimum Dryer Make-up Air Requirements
Dryer Dryer Pocket Maximum Air Flow Duct Size For Required Make-up
Model Capacity Rate per Pocket Service Connection Air Area per Pocket
lb kg cfm m3/h inch mm sq. inch cm2
C 30 30 13.6 700 1190 8 203 135 871
C 30 E/S 30 13.6 400 680 6 153 77 497
C 30 ST 30 13.6 450 765 6 153 87 561
C 50 50 22.7 800 1360 8 203 154 994
C 50 E/S 50 22.7 450 765 6 153 87 561
C 75 75 34 1000 1700 8 203 192 1239
C 75 E/S 75 34 536 911 6 153 103 665
C 75 ST 75 34 1000 1700 12 305 192 1239
HD80 80 36.3 1465 2490 10 254 282 1819
C 110 110 50 2200 3740 12 305 422 2723
C 110 E/S 110 50 850 1445 8 203 163 1052
C 125 125 56.7 2000 3400 12 305 384 2477
C 150 150 68 2250 3825 12 305 432 2787
HD175 175 79.4 2780 4726 12 305 534 3445
HD190 190 86.2 3000 5100 12 305 576 3716
WMC/HD20 20 9.1 450 765 6 153 87 561
WMC/HD30 30 13.6 625 1063 8 203 120 774
WMC/HD50 50 22.7 700 1190 8 203 135 871
WMC/HD75 75 34 750 1275 8 203 144 929
Notes:
1) The Model C 30 ST has 2 pockets per dryer, each pocket has the above listed characteristics;
each pocket is exhausted separately with a 6" (153mm) duct.
2) The Model C 75 ST has 2 pockets per dryer, each pocket has the above listed characteristics;
both pockets have one 8" (203mm) exhaust manifolded into one 12" (305mm) exhaust duct for
exhaust connection.
3) For the C 30 ST and the C 75 ST Models, the Required Make-up Air Area shown in the table
should be doubled since it is shown per pocket,only.
4) E/S indicates an Energy Saving Model.
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