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Table 8 — 50PCV Blower Performance with Hot
Water Reheat (HWR) Option
NOTE: For 50PCV units with HWR, calculate coil face velocity of the entering
air. Find the external static pressure loss for the reheat application. This loss
includes the wet coil loss.
Table 9 — 50PCV Blower Performance with
Wet Coil
Table 10 — 50PCH,PCV Blower Performance — Standard Unit
NOTES:
1. Shaded areas denote ESP (external static pressure) where operation is
not recommended.
2. Units factory shipped on medium speed. Other speeds require field
selection.
3. All airflow is rated and shown above at lowest voltage if unit is dual volt-
age rated, i.e., 208-v for 208/230-v units.
4. Only two-speed fan (Hi and Med) available on 575-v units.
5. Performance stated is at the rated power supply. Performance may vary
as the power supply varies from the rated.
Table 11 — 50PCH,PCV Blower Performance — High-Static Unit
NOTES:
1. Shaded areas denote ESP (external static pressure) where operation is
not recommended.
2. Units factory shipped on medium speed. Other speeds require field
selection.
3. All airflow is rated and shown above at lowest voltage if unit is dual volt-
age rated, i.e., 208-v for 208/230-v units.
4. Only two-speed fan (Hi and Med) available on 575-v units.
5. Performance stated is at the rated power supply. Performance may vary
as the power supply varies from the rated.
REHEAT EXTERNAL STATIC PRESSURE (ESP) LOSS
COIL FACE
VELOCITY (fpm)
015-030
(in. wg)
036, 042
(in. wg)
048, 060
(in. wg)
200 0.060 0.049 0.038
250 0.070 0.055 0.040
300 0.090 0.068 0.045
350 0.124 0.091 0.059
400 0.164 0.129 0.094
450 0.252 0.221 0.189
500 0.380 0.350 0.320
COIL FACE VELOCITY
(fpm)
WET COIL REDUCTION
(in. wg)
200 0.030
250 0.055
300 0.080
350 0.100
400 0.120
450 0.140
500 0.160
50PCH,
PCV
FAN
SPEED
RATED
AIRFLOW
MIN
CFM
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)
0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.60 0.70 0.80 0.90 1.00
015
Hi
525 375
745 725 706 696 686 666 637 588 539 451
Med 686 676 666 657 647 637 617 608 588 549 510
Low 608 598 588 578 568 559 549 529 510 480 451
018
Hi
600 450
745 725 706 696 686 666 637 588 539 451
Med 686 676 666 657 647 637 617 608 588 549 510
Low 608 598 588 578 568 559 549 529 510 480 451
024
Hi
800 600
950 922 884 827 732 656
Med 960 950 941 931 912 893 874 855 836 817 789 732 665
Low 779 770 760 751 741 732 722 713 694 684 665 618
030
Hi
1000 750
1102 1074 1045 1017 979 903 798
Med 1188 1169 1140 1121 1093 1064 1036 1017 988 960 922 846
Low 1064 1045 1017 998 979 960 931 912 884 855 827 751
036
Hi
1200 900
1474 1455 1436 1416 1387 1358 1329 1310 1280 1232 1174 1077 931
Med 1174 1164 1106 1106 1096 1096 1086 1077 1067 1038 1009 912
Low 980 980 970 970 960 960 951 951 941 922 902
042
Hi
1350 1050
1558 1530 1501 1473 1444 1416 1378 1340 1302 1264 1226 1131
Med 1416 1397 1368 1349 1321 1302 1273 1245 1207 1169 1131 1064
Low 1083 1083 1074 1074 1064 1055
048
Hi
1600 1200
1881 1853 1815 1767 1710 1653 1596 1416 1216 1216
Med 1843 1824 1805 1786 1767 1729 1682 1653 1625 1577 1520 1340
Low 1682 1663 1644 1625 1606 1587 1568 1530 1492 1435 1378 1264
060
Hi
2000 1500
2195 2195 2185 2176 2156 2117 2078 2048 2019 1999 1970 1921 1842 1754 1627
Med 2009 2009 1999 1980 1950 1931 1901 1882 1852 1823 1793 1744 1676 1588
Low 1813 1813 1803 1793 1774 1764 1744 1725 1695 1666 1637 1588
50PCH,
PCV
FAN
SPEED
RATED
AIRFLOW
MIN
CFM
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)
0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.60 0.70 0.80 0.90 1.00
015
Hi
525 375
774 764 755 745 735 715 696 676 637 519
Med 735 725 706 696 686 676 657 657 647 637 617 588 480
Low 657 647 627 617 608 598 588 578 568 568 559 519
018
Hi
600 450
774 764 755 745 735 715 696 676 637 519
Med 735 725 706 696 686 676 657 657 647 637 617 588 480
Low 657 647 627 617 608 598 588 578 568 568 559 519
024
Hi
800 600
979 903 789 665
Med 988 960 922 846 713
Low 979 960 931 912 884 855 827 751 675
030
Hi
1000 750
1102 988 874 760
Med 1074 1026 979 884 779
Low 998 988 979 960 941 931 912 893 865 836 798
036
Hi
1200 900
1484 1455 1426 1358 1251 1135 931
Med 1319 1310 1300 1290 1280 1271 1261 1242 1222 1213 1193 1116 1038
Low 999 989 980 980 970 970 960 951 931 922 902
042
Hi
1350 1050
1473 1463 1444 1425 1397 1387 1378 1311 1178
Med 1321 1311 1302 1292 1283 1273 1254 1245 1235 1216 1188 1121
Low
048
Hi
1600 1200
1957 1938 1910 1862 1786 1701 1577 1435
Med 1948 1948 1938 1919 1891 1872 1843 1824 1796 1767 1739 1691 1625 1539 1416 1254
Low 1758 1758 1748 1739 1720 1710 1691 1672 1644 1615 1587 1520 1435 1311
060
Hi
2000 1500
2352 2352 2342 2332 2323 2313 2293 2274 2254 225 2195 2156 2087 2019 1940 1852
Med 2117 2117 2107 2107 2097 2068 2038 2019 1999 1989 1980 1940 1891 1842 1460 1715
Low 1891 1891 1882 1882 1872 1862 1852 1852 1842 1833 1813 1793 1764 1715 1666 1588