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TABLE 18: Blower Performance CFM
MODELS
Airflow with Top Return - without Filters (CFM)
Input/
Speed
Airflow/
Tap
0.1
0.2
Cabinet
High
1635 1590 1535 1480 1415 1340 1280 1185
Med-High 1179
1170
40/1200/A
Med-Low 969
967
Low
774
753
High
1687 1652 1631 1595 1557 1511 1456 1382 1313 1211
Med-High 1193
1183
60/1200/B
Med-Low 933
933
Low
752
745
High
1686 1658 1623 1572 1534 1465 1391 1305 1202 1091
Med-High 1257 1223 1218 1203 1177
80/1200/B
Med-Low 977
982
Low
775
777
High
2071 2026 1981 1935 1864 1796 1713 1625 1532 1401
Med-High 1583 1590 1569 1554 1532 1502 1457 1409 1327 1221
80/1600/C
Med-Low 1256 1275 1275 1288 1275 1265 1232 1187
Low
937
939
High
1996 1961 1938 1896 1836 1779 1707 1625 1531 1399
Med-High 1449 1480 1495 1488 1488 1449 1417 1368 1299 1208
100/1600/C
Med-Low 1167
1192
Low
932
900
High
2404 2320 2225 2138 2034 1924 1816 1692 1559 1422
Med-High 2018 1955 1883 1815 1750 1670 1586 1497 1394 1246
100/2000/C
Med-Low 1626 1581 1531 1488 1418 1363 1291 1225 1123
Low
1336 1291 1249 1205 1155 1091 1018
High
2520 2432 2353 2251 2152 2042 1947 1815 1701 1525
Med-High 2018 1979 1945 1911 1863 1779 1705 1599 1493 1353
120/2000/D
Med-Low 1586 1545 1501 1457 1407 1351 1287 1216 1081
Low
1321 1266 1213 1163
NOTES:
1. Airflow expressed in standard cubic feet per minute (CFM) and in cubic meters per minute (m
2. Motor voltage at 115 V.
3. NR = Operation at this static pressure is not recommended.
FILTER PERFORMANCE
The airflow capacity data published in Table 18 represents blower per-
formance WITHOUT filters. To determine the approximate blower per-
formance of the system, apply the filter drop value for the filter being
used or select an appropriate value from the Table 19.
TABLE 19: Filter Performance - Pressure Drop Inches W.C. and (kPa)
Airflow Range
3
CFM
m
/min
0 - 750
0 - 21.4
751 - 1000
21.25 - 28.32
1001 - 1250
28.33 - 35.40
1251 - 1500
35.41 - 42.48
1501 - 1750
42.49 - 49.55
1751 - 2000
49.56 - 56.63
2001 & Above
56.64 - Above
Unitary Products Group
External Static Pressure, Inches W.C.
0.3
0.4
0.5
0.6
0.7
1160
1140
1135 1098 1048 1026
967
959
938
905
860
745
726
698
674
652
1173
1162
1142
1115 1076 1036
921
911
902
872
825
731
718
698
652
602
1142 1094 1026
976
955
934
899
843
757
733
698
663
627
936
945
942
936
912
1192
1187 1202 1192
1182
871
840
805
761
710
1111
1071
987
Minimum
Opening Size
2
2
in
cm
230
1484
330
2129
330
2129
330
2129
380
2452
380
2542
463
2987
Airflow with Top Return - without Filters (m
0.8
0.9
1.0
0.025 0.050 0.075 0.099 0.124 0.149 0.174 0.199 0.224 0.249
NR
NR
46
45
NR
NR
33
33
802
NR
NR
27
27
612
NR
NR
22
21
48
47
982
950
34
33
793
771
712
26
26
580
536
496
21
21
48
47
939
874
36
35
791
738
686
28
28
584
549
490
22
22
59
57
45
45
1126 1023
36
36
874
810
726
27
27
56
56
41
42
1140 1097 1018
33
34
663
641
623
26
25
68
66
57
55
964
46
45
951
884
759
38
37
71
69
57
56
926
45
44
864
763
700
37
36
3
/min).
NOTE: The filter pressure drop values in Table 19 are typical values for
the type of filter listed and should only be used as a guideline. Actual
pressure drop ratings for each filter type vary between filter manufactur-
ers.
Disposable
In W.C.
kPA
0.01
0.00249
0.05
0.01245
0.10
0.02491
0.10
0.02491
0.15
0.03736
0.19
0.04733
0.19
0.04733
269441-UIM-A-0407
External Static Pressure, Inches (kPa)
43
42
40
38
36
33
32
32
31
30
27
27
27
26
24
21
21
20
19
18
46
45
44
43
41
33
33
32
32
30
26
26
26
25
23
21
20
20
18
17
46
44
43
41
39
34
34
33
32
31
28
27
26
25
24
21
21
20
19
18
56
55
53
51
48
44
44
43
43
41
36
36
36
36
35
26
27
27
26
26
55
54
52
50
48
42
42
42
41
40
34
34
34
34
33
25
24
23
22
20
63
61
58
54
51
53
51
50
47
45
43
42
40
39
37
35
34
33
31
29
67
64
61
58
55
55
54
53
50
48
42
41
40
38
36
34
33
31
30
28
Filter Type
Washable Fiber
In W.C.
kPA
In W.C.
0.01
0.00249
0.15
0.05
0.01245
0.20
0.10
0.02491
0.20
0.10
0.02491
0.25
0.14
0.03487
0.30
0.18
0.04484
0.30
0.18
0.04484
0.30
3
min)
34
NR
NR
29
NR
NR
23
NR
NR
17
NR
NR
39
37
34
29
28
27
22
22
20
16
15
14
37
34
31
29
27
25
22
21
19
17
16
14
46
43
40
40
38
35
34
32
29
25
23
21
46
43
40
39
37
34
32
31
29
19
18
18
48
44
40
42
39
35
35
32
27
27
25
21
51
48
43
45
42
38
34
31
26
24
22
20
Pleated
kPA
0.03736
0.04982
0.04982
0.06227
0.07473
0.07473
0.07473
37
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