Heat Wagon P1800-1, Installation And Maintenance Manual

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7
GENERAL ELECTRIC HEATER SIZING ISSUES
When running Heat Wagon electric heaters from a generator, it is extremely important to make sure
that the generator selected for your heater is not undersized. The single largest service issue with
Heat Wagon electric heaters is improper set up relating to inadequate voltage due to too small of an
electric source and/or too small of a power cord.
Generator Selection for Heat Wagon Electric Heaters
The chart below will help you when it comes to selecting the correct generator required for your
Heat Wagon heater:
So, by reviewing the above chart, a P1800-1 would require a minimum 18,000 Watt (18KW),
240 volt single phase generator that can provide 75 amps of continuous power.
Heating Coil Ohm Readings
P600 - 20
P900 - 20
P1800’s - 26
P4000 - 85
P6000 - 54
Model Watts Phase BTU'S Volts Amps CFM Recommendations
P1500 1,500 1 Phase 5,100 120 15 120 3KW
P600 6,000 1 Phase 20,500 240 25 250 10KW
P900 9,000 1 Phase 30,700 240 38 350 15KW
P1800-1 18,000 1 Phase 64,000/41,000 240 75 590 25KW
P1800-3 18,000 3 Phase 64,000/41,000 240 50 590 25KW
P1800D 18,000 3 Phase 64,000/41,000 240 50 950 25KW
P4000 40,000 3 Phase 136,000/109,200/54,600 480 50 1,800 50KW
P6000 60,000 3 Phase 204,700/163,800/81,900 480 70 1,800 75KW