Owner's Manual

47
FINAL PRESSURE PSIG (NOT NECESSARILY RELIEF VALVE SETTING)
ACCEPTANCE FACTORS FOR DIAPHRAGM TYPE TANKS
To use this Figure: (1) Enter the horizontal scale at the nal system pressure. (2)
Move up vertically to the curved line for the initial charge pressure. (3) Read the
acceptance factor on the vertical scale. (4) Divide acceptance volume from Figure
3-11 by the acceptance factor to obtain diaphragm type tank volume.
FIGURE 3-12
FIGURE 3-13
Module Size
Heating Surface,
Ft
2
Water Volume,
Gallon
805H 34.4 11.9
806H 42.6 13.9
807HE 50.8 15.9
808HE 59.0 17.9
809HE 67.2 19.9
810HE 75.4 21.9
MODULE DATE - WATER SIDE