POWER SUPPLY REQUIREMENTS
Electrical power is connected to the circuit breaker in the main control panel. Standard voltage is: 460
Volt/60 Cycle/3 Phase A.C. or 230 Volt/6 Cycle/3 Phase A.C.
Amperage supply shall be:
At 230 Volts
At 460 Volts
Proper voltage and frequency is mandatory. Voltages over ten percent above or below those
stated can cause poor operation and damage to the equipment.
A heater may be changed from 460 Volts/60 Cycle/3 Phase to 230 Volts/60 Cycle/3 Phase or vice versa by
making the following changes:
Reconnect the burner motor to the desired voltage.
Reconnect the pump motor the desired voltage.
Reconnect the primary taps of the control transformer to the desired voltage.
Change the overload heaters on the burner motor starter to the proper current rating for the motor at the
Change the overload heaters on the pump motor starter to the proper current rating for the motor at the new
Check the burner motor and the pump motor for proper rotation; if the rotation of either is wrong,
interchange any two of the three leads to that motor at the secondary side of the magnetic starter.