272313-UIM-A-0407
Unitary Products Group
27
NOTES:
1. Airflow expressed in standard cubic feet per minute (CFM) and in cubic meters per minute (m
3
/min).
2. Return air is through side opposite motor (left side).
3. In order to stay within the velocity rating the filters, airflows above 1800 CFM (50.97 m
3
/min) require either return from two sides or one side plus bottom.
4. Motor voltage at 115 V.
5. NR = Operation at this static pressure is not recommended.
FILTER PERFORMANCE
The airflow capacity data published in Table 17 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 18.
NOTE:
The filter pressure drop values in Table 18 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 17:
Blower Performance CFM
Models
Input
Airflow/
Cabinet
Speed
Tap
Airflow with Bottom or One Side Retrun -
without Filters (CFM)
Airflow with Bottom or One Side Retrun -
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
1395
1330
1265
1200
1120
1030
940
820
NR
NR
40
38
36
34
32
29
27
23
NR
NR
Med-High
1025
990
960
925
885
825
750
660
NR
NR
29
28
27
26
25
23
21
19
NR
NR
Med-Low
785
765
745
715
670
625
545
NR
NR
NR
22
22
21
20
19
18
15
NR
NR
NR
Low
640
605
590
565
530
465
405
NR
NR
NR
18
17
17
16
15
13
11
NR
NR
NR
80/1200/B
60/1200/B
High
1650
1605
1570
1525
1465
1410
1350
1275
1170
1060
47
45
44
43
41
40
38
36
33
30
Med-High
1165
1185
1175
1165
1150
1140
1100
1050
970
875
33
34
33
33
33
32
31
30
27
25
Med-Low
895
915
935
940
940
920
905
860
815
750
25
26
26
27
27
26
26
24
23
21
Low
710
725
725
725
720
700
685
660
625
560
20
21
21
21
20
20
19
19
18
16
100/2000/C
High
2300
2210
2120
2020
1930
1830
1715
1595
1480
1350
65
63
60
57
55
52
49
45
42
39
Med-High
1950
1900
1830
1755
1680
1595
1500
1390
1270
1155
55
54
52
50
48
45
42
39
36
33
Med-Low
1610
1545
1490
1440
1390
1315
1230
1155
1050
920
46
44
42
41
39
37
33
33
30
26
Low
1325
1270
1225
1175
1105
1045
990
905
890
790
38
36
35
33
31
30
28
25
25
22
100/1600/C
80/1600/C
High
1960
1955
1925
1890
1830
1765
1695
1615
1600
1485
56
55
55
54
52
50
48
46
45
42
Med-High
1565
1560
1560
1575
1545
1530
1475
1425
1365
1260
44
44
44
45
44
43
42
40
39
36
Med-Low
1230
1275
1285
1300
1310
1300
1280
1245
1190
1070
35
36
36
37
37
37
36
35
34
30
Low
930
945
965
975
975
975
975
950
910
850
26
27
27
28
28
28
28
27
26
24
120/2000/D
High
2560
2485
2410
2320
2220
2135
2035
1920
1785
1650
72
70
68
66
63
60
58
54
51
47
Med-High
2090
2050
1990
1970
1885
1820
1760
1675
1545
1405
59
58
56
56
53
52
50
47
44
40
Med-Low
1695
1675
1665
1615
1565
1510
1460
1385
1285
1140
48
47
47
46
44
43
41
39
36
32
Low
1175
1150
1135
1110
1085
1055
1005
980
970
845
33
33
32
31
31
30
28
28
27
24
Models
Input
Airflow/
Cabinet
Speed
Tap
Airflow with Two Side Returns or with Bottom and One
Side Return - without Filters (CFM)
Airflow with Two Side Returns or with Bottom and One
Side 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
100/2000/C
HIGH
2465
2380
2295
2195
2095
1995
1875
1760
1620
1470
70
67
65
62
59
56
53
50
46
42
M-HI
2085
2035
1960
1880
1800
1705
1605
1485
1360
1235
59
58
55
54
51
48
45
42
39
35
M-LO
1725
1625
1595
1540
1485
1405
1315
1235
1125
995
49
46
45
44
42
40
37
35
32
28
LOW
1420
1360
1310
1255
1180
1120
1070
970
950
845
40
39
37
36
33
32
30
27
27
24
120/2000/D
HIGH
2615
2535
2450
2385
2285
2175
2075
1945
1825
1670
74
72
69
68
65
62
59
55
52
47
M-HI
2055
2045
2015
1985
1932
1855
1785
1730
1605
1470
58
58
57
56
55
53
51
49
45
42
M-LO
1690
1650
1620
1600
1570
1525
1470
1395
1300
1200
48
47
46
45
44
43
42
40
37
34
LOW
1345
1335
1335
1285
1250
1230
1180
1115
1010
850
38
38
38
36
35
35
33
32
29
24
TABLE 18:
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