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Suggested Minimum Dryer Make-up Air Requirements
Dryer
Dryer Pocket
Model
Capacity
lb
C 30
30
C 30 E/S
30
C 30 ST
30
C 50
50
C 50 E/S
50
C 75
75
C 75 E/S
75
C 75 ST
75
HD80
80
C 110
110
C 110 E/S
110
C 125
125
C 150
150
HD175
175
HD190
190
WMC/HD20
20
WMC/HD30
30
WMC/HD50
50
WMC/HD75
75
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.
Maximum Air Flow
Rate per Pocket
kg
cfm
m3/h
13.6
700
1190
13.6
400
680
13.6
450
765
22.7
800
1360
22.7
450
765
34
1000
1700
34
536
911
34
1000
1700
36.3
1465
2490
50
2200
3740
50
850
1445
56.7
2000
3400
68
2250
3825
79.4
2780
4726
86.2
3000
5100
9.1
450
765
13.6
625
1063
22.7
700
1190
34
750
1275
Page 20
Duct Size For
Service Connection
inch
mm
8
203
6
153
6
153
8
203
6
153
8
203
6
153
12
305
10
254
12
305
8
203
12
305
12
305
12
305
12
305
6
153
8
203
8
203
8
203
Required Make-up
Air Area per Pocket
sq. inch cm2
135
871
77
497
87
561
154
994
87
561
192
1239
103
665
192
1239
282
1819
422
2723
163
1052
384
2477
432
2787
534
3445
576
3716
87
561
120
774
135
871
144
929
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