Common electric heater calculations – FloAire STAGED ELECTRIC HEAT MODULE User Manual
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Common Electric Heater Calculations
Conversion:
1 KW = 3413
Load Requirement:
KW = (CFM x Temperature Rise) / 3160
Line Current (3 Phase):
Amperage = (KW x 1000) / (Volts x 1.73)
Line Current (1 Phase):
Amperage = (KW x 1000) / Volts
Applied vs. Rated KW Factors
Rated
Voltage
Applied Voltage
200
208
220
230
240
440
460
480
208
.92
1.00
1.12
1.22
1.33
460
.91
1.00
1.09
480
.84
.92
1.00
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