036-21578-002 Rev. B (0205)
4
Unitary Products Group
NOTES:
1. Airflow expressed in standard cubic feet per minute.
2. Return air is through side opposite motor (left side).
3. Airflows above 1800 CFM 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 the “Blower Perfor-
mance” table listed above represents blower performance
WITHOUT filters. To determine the approximate blower per-
formance of the system, apply the filter drop value for the fil-
ter being used or select an appropriate value from the “Filter
Performance” table shown below.
NOTE:
The filter pressure drop values in the “Filter Perfor-
mance” table shown below 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
manufacturer.
BLOWER PERFORMANCE CFM
AIRFLOW WITH BOTTOM OR ONE SIDE RETURN
MODELS
Speed
Tap
EXTERNAL STATIC PRESSURE, INCHES W.C. (kPa)
0.1
0.2
0.3
0.4
0.5
0.6
0.7 0.8
0.9
1.0
CFM CFM CFM CFM CFM CFM CFM CFM CFM CFM
PS9A12N040UP11
HIGH 1635
1590
1535
1480
1415
1340
1280
1185
NR
NR
M-HI 1245 1225 1205 1185 1160
1110 1065
995
NR
NR
M-LO 1005 1000 995
975
955
925
885
825
NR
NR
LOW 775 770 765
750
725
680
655
620
NR
NR
PS9B12N060UP11
PS9B12N080UP11
HIGH 1650 1605 1570 1525 1465 1410 1350 1275 1170 1060
M-HI 1165 1185 1175 1165 1150 1140 1100 1050 970 875
M-LO 895 915 935 940 940 920 905 860 815 750
LOW 710 725 725 725 720 700 685 660 625 560
PS9C20N080UP11
PS9C20N100UP11
HIGH 2300
2210
2120
2020
1930
1830
1715
1595
1480
1350
M-HI 1950
1900
1830
1755
1680
1595
1500
1390
1270
1155
M-LO 1610
1545
1490
1440
1390
1315
1230
1155
1050
920
LOW 1325
1270
1225
1175
1105
1045
990
905
890
790
PS9C16N080UP11
PS9C16N100UP11
HIGH 1960 1955 1925 1890 1830 1765 1695 1615 1600 1485
M-HI 1565 1560 1560 1575 1545 1530 1475 1425 1365 1260
M-LO 1230 1275 1285 1300 1310 1300 1280 1245 1190 1070
LOW 930 945 965 975 975 975 975 950 910 850
PS9D20N120UP11
PS9D20N135UP11
HIGH 2560 2485 2410 2320 2220 2135 2035 1920 1785 1650
M-HI 2090 2050 1990 1970 1885 1820 1760 1675 1545 1405
M-LO 1695 1675 1665 1615 1565 1510 1460 1385 1285 1140
LOW 1175 1150 1135 1110 1085 1055 1005 980 970 845
AIRFLOW WITH TWO SIDE RETURNS OR WITH BOTTOM AND ONE SIDE RETURN
MODELS
Speed
Tap
EXTERNAL STATIC PRESSURE, INCHES W.C. (kPa)
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
CFM CFM CFM CFM CFM CFM CFM CFM CFM CFM
PS9C20N080UP11
PS9C20N100UP11
HIGH 2465
2380
2295
2195
2095
1995
1875
1760
1620
1470
M-HI 2085
2035
1960
1880
1800
1705
1605
1485
1360
1235
M-LO 1725
1625
1595
1540
1485
1405
1315
1235
1125
995
LOW 1420
1360
1310
1255
1180
1120
1070
970
950
845
PS9D20N120UP11
PS9D20N135UP11
HIGH 2615 2535 2450 2385 2285 2175 2075 1945 1825 1670
M-HI 2055 2045 2015 1985 1932 1855 1785 1730 1605 1470
M-LO 1690 1650 1620 1600 1570 1525 1470 1395 1300 1200
LOW 1345 1335 1335 1285 1250 1230 1180 1115 1010 850