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_ Installation Instructions Combination Units I
Figure 9 Circulating Blower Performance Data - 5 Ton Units 208 Volts
CHART
_gOperating Range
t400
1290
t180
t070
0
740 F.
0
630
520
410
300
1500 t600 1700 1800 t900 2000 2100 2200 2300 2400 2500
CFM
NOTES:
1. Maximum motor Watts is 1486 Watts.
2. Airflow based on dry coil, horizontal flow, with filters.
3. For downflow SCFM, use a .15 static drop.
4. Pulley turns refer to turns out. I.E. 0 turns is a narrower sheave than 5 turns.
5. For applications requiring operation in shaded areas, contact the factory.
6. Maximum blower wheel speed is 1400 RPM.
7. The blower speed MUST be set to give the correct air temperature rise through the unit as marked on the Rating Plate or
Technical Support Manual.
TABLE
NO.
OF
TURNS
0
1
2
3
4
5
EXTERNAL STATIC PRESSURE IN INCHES W.C.
.2 .4 .6 .8 1.0
WIlL WIlL WIlL WIlL WIlL
CFM W RPM CFM W RPM CFM W RPM CFM W RPM CFM W RPM
2240 1302 1153 2087 1213 1163 1914 1118 1174
2192 1196 1127 2028 1109 1137 1846 1017 1145
2199 1064 1074 2032 987 1082 1834 903 1089
2255 1018 1025 2098 945 1031 1916 868 1037
2132 875 982 1962 811 986 1761 742 991
1992 732 938 1814 671 942
TURNS/RPM CONVERSION TABLE
PULLEY TURNS 0 1 2 3 4 5
OPEN
RPM WITH 1 HP 1145 1120 1080 1035 990 945
STD PULLEY
W = Watts
FACTORY SETTING TURNS OPEN
1 HP STD PULLEY ........ 2.5 I
[_ 513 01 1002 00
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