Filter
Top Products
268890-UIM-B-0607
Unitary Products Group 37
NOTES:
1. Airflow expressed in standard cubic feet per minute (CFM) and in cubic meters per minute (m
3
/min).
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.
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.
TABLE 18:
Blower Performance CFM
MODELS
Input/
Airflow/
Cabinet
Speed
Tap
Airflow with Top Return - without Filters (CFM)
Airflow with Top Return - without Filters (m
3
min)
External Static Pressure, Inches W.C.
External Static Pressure, Inches (kPa)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 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
40/1200/A
High 1635 1590 1535 1480 1415 1340 1280 1185 NR NR 46 45 43 42 40 38 36 34 NR NR
Med-High 1179 1170 1160 1140 1135 1098 1048 1026 NR NR 33 33 33 32 32 31 30 29 NR NR
Med-Low969967967959938905860802NRNR2727272727262423NRNR
Low 774 753 745 726 698 674 652 612 NR NR 22 21 21 21 20 19 18 17 NR NR
60/1200/B
High 1687 1652 1631 1595 1557 1511 1456 1382 1313 1211 48 47 46 45 44 43 41 39 37 34
Med-High 1193 1183 1173 1162 1142 1115 1076 1036 982 950 34 33 33 33 32 32 30 29 28 27
Med-Low93393392191190287282579377171226262626262523222220
Low 752 745 731 718 698 652 602 580 536 496 21 21 21 20 20 18 17 16 15 14
80/1200/B
High 1686 1658 1623 1572 1534 1465 1391 1305 1202 1091 48 47 46 44 43 41 39 37 34 31
Med-High 1257 1223 1218 1203 1177 1142 1094 1026 939 874 36 35 34 34 33 32 31 29 27 25
Med-Low97798297695593489984379173868628282827262524222119
Low 775 777 757 733 698 663 627 584 549 490 22 22 21 21 20 19 18 17 16 14
80/1600/C
High 2071 2026 1981 1935 1864 1796 1713 1625 1532 1401 59 57 56 55 53 51 48 46 43 40
Med-High 1583 1590 1569 1554 1532 1502 1457 1409 1327 1221 45 45 44 44 43 43 41 40 38 35
Med-Low 1256 1275 1275 1288 1275 1265 1232 1187 1126 1023 36 36 36 36 36 36 35 34 32 29
Low 937 939 936 945 942 936 912 874 810 726 27 27 26 27 27 26 26 25 23 21
100/1600/C
High 1996 1961 1938 1896 1836 1779 1707 1625 1531 1399 56 56 55 54 52 50 48 46 43 40
Med-High 1449 1480 1495 1488 1488 1449 1417 1368 1299 1208 41 42 42 42 42 41 40 39 37 34
Med-Low 1167 1192 1192 1187 1202 1192 1182 1140 1097 1018 33 34 34 34 34 34 33 32 31 29
Low 932 900 871 840 805 761 710 663 641 623 26 25 25 24 23 22 20 19 18 18
100/2000/C
High 2404 2320 2225 2138 2034 1924 1816 1692 1559 1422 68 66 63 61 58 54 51 48 44 40
Med-High 2018 1955 1883 1815 1750 1670 1586 1497 1394 1246 57 55 53 51 50 47 45 42 39 35
Med-Low 1626 1581 1531 1488 1418 1363 1291 1225 1123 964 46 45 43 42 40 39 37 35 32 27
Low 1336 1291 1249 1205 1155 1091 1018 951 884 759 38 37 35 34 33 31 29 27 25 21
120/2000/D
High 2520 2432 2353 2251 2152 2042 1947 1815 1701 1525 71 69 67 64 61 58 55 51 48 43
Med-High 2018 1979 1945 1911 1863 1779 1705 1599 1493 1353 57 56 55 54 53 50 48 45 42 38
Med-Low 1586 1545 1501 1457 1407 1351 1287 1216 1081 926 45 44 42 41 40 38 36 34 31 26
Low 1321 1266 1213 1163 1111 1071 987 864 763 700 37 36 34 33 31 30 28 24 22 20
TABLE 19:
Filter Performance - Pressure Drop Inches W.C. and (kPa)
Airflow Range
Minimum
Opening Size
Filter Type
Disposable Washable Fiber Pleated
CFM
m
3
/min in
2
cm
2
In W.C. kPA In W.C. kPA In W.C. kPA
0 - 750 0 - 21.4 230 1484 0.01 0.00249 0.01 0.00249 0.15 0.03736
751 - 1000 21.25 - 28.32 330 2129 0.05 0.01245 0.05 0.01245 0.20 0.04982
1001 - 1250 28.33 - 35.40 330 2129 0.10 0.02491 0.10 0.02491 0.20 0.04982
1251 - 1500 35.41 - 42.48 330 2129 0.10 0.02491 0.10 0.02491 0.25 0.06227
1501 - 1750 42.49 - 49.55 380 2452 0.15 0.03736 0.14 0.03487 0.30 0.07473
1751 - 2000 49.56 - 56.63 380 2542 0.19 0.04733 0.18 0.04484 0.30 0.07473
2001 & Above 56.64 - Above 463 2987 0.19 0.04733 0.18 0.04484 0.30 0.07473