GE EST iO500

Appendix B: Worksheets
216 EST iO64 and iO500 Technical Reference Manual
Notes
[1] Use the manufacturer’s published wire resistance expressed in
ohms per foot. For typical values, see Table 1 in the “Notification
appliance circuit calculations worksheet.”
[2] Use the Maximum operating current at worst-case VFWR from
the installation or catalog sheet of each device.
[3] For UL regulated notification appliances, this voltage must not
drop below 16 VFWR. For other devices, get the minimum
operating VFWR from the installation or catalog sheet.