105561-UIM-B-0605
Unitary Products Group
23
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 16 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 17.
NOTE: The filter pressure drop values in Table 17 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 fil-
ter manufacturers.
* Washable Fiber Filters are the type supplied with furnace.
TABLE 15: Blower Performance CFM
AIRFLOW WITH BOTTOM OR ONE SIDE RETURN
MODELS
Speed
Tap
EXTERNAL STATIC PRESSURE, INCHES W.C. (kPa)
Input/
Airflow/cabinet
0.1 (0.025)
0.2 (0.050)
0.3 (0.075)
0.4 (0.099)
0.5 (0.124)
0.6 (0.149)
0.7 (0.174)
0.8 (0.199)
0.9 (0.224)
1.0 (0.249)
CFM m
3
/min CFM m
3
/min CFM m
3
/min CFM m
3
/min CFM m
3
/min CFM m
3
/min CFM m
3
/min CFM m
3
/min CFM m
3
/min CFM m
3
/min
40/1200/A
HIGH 1635
46
1590
45
1535
43
1480
42
1415
40
1340
39
1280
36
1185
34
NR
NR
NR
NR
M-HI 1245 35
1225 35
1205 34
1185 34
1160
33
1110 31
1065
31
995
28
NR
NR
NR
NR
M-LO 1005 28
1000 28
995
28
975
28
955
27
925
26
885
25
825
23
NR
NR
NR
NR
LOW 775 22
770 22
765
22
750
21
725
21
680
19
655
19
620
18
NR
NR
NR
NR
60/1200/B
80/1200/B
HIGH 1650 47 1605 45 1570 44 1525 43 1465 41 1410 40 1350 38 1275 36 1170 33 1060 30
M-HI 1165 33 1185 34 1175 33 1165 33 1150 33 1140 32 1100 31 1050 30 970 27 875 25
M-LO 895 25 915 26 935 26 940 27 940 27 920 26 905 26 860 24 815 23 750 21
LOW 710 20 725 21 725 21 725 21 720 20 700 20 685 19 660 19 625 18 560 16
80/2000/C
100/2000/C
HIGH 2300
65
2210
63
2120
60
2020
57
1930
55
1830
52
1715
49
1595
45
1480
42
1350
39
M-HI 1950
55
1900
54
1830
52
1755
50
1680
48
1595
45
1500
42
1390
39
1270
36
1155
33
M-LO 1610
46
1545
44
1490
42
1440
41
1390
39
1315
37
1230
33
1155
33
1050
30
920
26
LOW 1325
38
1270
36
1225
35
1175
33
1105
31
1045
30
990
28
905
25
890
25
790
22
80/1600/C
100/1600/C
HIGH 1960 56 1955 55 1925 55 1890 54 1830 52 1765 50 1695 48 1615 46 1600 45 1485 42
M-HI 1565 44 1560 44 1560 44 1575 45 1545 44 1530 43 1475 42 1425 40 1365 39 1260 36
M-LO 1230 35 1275 36 1285 36 1300 37 1310 37 1300 37 1280 36 1245 35 1190 34 1070 30
LOW 930 26 945 27 965 27 975 28 975 28 975 28 975 28 950 27 910 26 850 24
120/2000/D
135/2000/D
HIGH 2560 72 2485 70 2410 68 2320 66 2220 63 2135 60 2035 58 1920 54 1785 51 1650 47
M-HI 2090 59 2050 58 1990 56 1970 56 1885 53 1820 52 1760 50 1675 47 1545 44 1405 40
M-LO 1695 48 1675 47 1665 47 1615 46 1565 44 1510 43 1460 41 1385 39 1285 36 1140 32
LOW 1175 33 1150 33 1135 32 1110 31 1085 31 1055 30 1005 28 980 28 970 27 845 24
AIRFLOW WITH TWO SIDE RETURNS OR WITH BOTTOM AND ONE SIDE RETURN
MODELS
Speed
Tap
EXTERNAL STATIC PRESSURE, INCHES W.C. (kPa)
Input/
Airflow/cabinet
0.1 (0.025)
0.2 (0.050)
0.3 (0.075)
0.4 (0.099)
0.5 (0.124)
0.6 (0.149)
0.7 (0.174)
0.8 (0.199)
0.9 (0.224)
1.0 (0.249)
CFM m
3
/min CFM m
3
/min CFM m
3
/min CFM m
3
/min CFM m
3
/min CFM m
3
/min CFM m
3
/min CFM m
3
/min CFM m
3
/min CFM m
3
/min
80/2000/C
100/2000/C
HIGH 2465
70
2380
67
2295
65
2195
62
2095
59
1995
56
1875
53
1760
50
1620
46
1470
42
M-HI 2085
59
2035
58
1960
55
1880
54
1800
51
1705
48
1605
45
1485
42
1360
39
1235
35
M-LO 1725
49
1625
46
1595
45
1540
44
1485
42
1405
40
1315
37
1235
35
1125
32
995
28
LOW 1420
40
1360
39
1310
37
1255
36
1180
33
1120
32
1070
30
970
27
950
27
845
24
120/2000/D
135/2000/D
HIGH 2615 74 2535 72 2450 69 2385 68 2285 65 2175 62 2075 59 1945 55 1825 52 1670 47
M-HI 2055 58 2045 58 2015 57 1985 56 1932 55 1855 53 1785 51 1730 49 1605 45 1470 42
M-LO 1690 48 1650 47 1620 46 1600 45 1570 44 1525 43 1470 42 1395 40 1300 37 1200 34
LOW 1345 38 1335 38 1335 38 1285 36 1250 35 1230 35 1180 33 1115 32 1010 29 850 24
TABLE 16: Filter Performance - Pressure Drop Inches W.C. and (kPa)
AIRFLOW
RANGE
MINIMUM OPENING SIZE
FILTER TYPE
DISPOSABLE
WASHABLE FIBERS*
PLEATED
1 Opening
2 Openings
1 Opening
2 Opening
1 Opening
2 Opening
1 Opening
2 Opening
Sq. in.
m
2
Sq. in.
m
2
In w.c.
Pa
In w.c.
Pa
In w.c.
Pa
In w.c.
Pa
In w.c.
Pa
In w.c.
Pa
0 - 750
230
.15
0.01
2.5
0.01
2.5
0.15
37
751 - 1000
330
.21
0.04
10
0.03
7.5
0.20
50
1001 - 1250
330
.21
0.08
20
0.07
17
0.20
50
1251 - 1500
330
.21
0.08
20
0.07
17
0.25
62
1501 - 1750
380
.25
658
.42
0.14
35
0.08
20
0.13
32
0.06
15
0.30
75
0.17
42
1751 - 2000
380
.25
658
.42
0.17
42
0.09
22
0.15
37
0.07
17
0.30
75
0.17
42
2001 & Above
463
.30
658
.42
0.17
42
0.09
22
0.15
37
0.07
17
0.30
75
0.17
42
