Multiaqua CFFWA Series, Operating Manual

Page: 277 / 288

269
CWA4 CFM and Glycol Adjustments
Model Moter
CFM vs. ESP
Number Speed 0.1 0.2 0.3 0.4 0.5
High
850 800 760 720 680
Medium
825 775 715 690 670 24CWA4-HW
Low
780 715 655 630 -
High
1360 1310 1270 1230 1190
Medium
1340 1250 1170 1090 1060 36CWA4-HW
Low
1280 1170 1040 970 -
High
1860 1740 1640 1530 1480
Medium
1780 1620 1510 1390 1280
48CWA4-HW
Low
1680 1500 1320 1250 -
High
1950 1900 1845 1770 1720
Medium
1820 1750 1620 1470 1440 60CWA4-HW
Low
1750 1640 1390 1270 -
Example:
24CWA4 @ 0.20” ESP produces 800 cfm.
Locate 800 cfm (for the 24CWA4) on the Capacity Adjustment Factors on page 270. (TC =1.00 & SC = 1.00)
Multiply the stated chilled water capacity for the 24CWA4 or the hot water capacity by the adjustment factors to achieve the capacity adjustment.
Propylene Glycol & GPM Adjustment Factors
Ambient
Temp
Propylene
Glycol %
Capacity
Reduction
GPM Adjustment =
100% Capacity
26° F 10% x 0.99 x 1.01
20° F 20% x 0.98 x 1.03
8° F 30% x 0.98 x 1.07
-5° F 40% x 0.97 x 1.11
-28° F 50% x 0.96 x 1.16
Example:
30% Propylene Glycol Solution.
System capacity x 0.98
GPM x 1.07
These specifications are subject to change without notice.