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4
4” PUMP DESIGN AND OPTIMUM PERFORMANCE
VOLTAGE
NUMBER OF PUMP WIRES AND CONTROL BOXES
CONFIRMATION OF SELECTION
This pump is designed to pump 10 gallons per minute (10
GPM), which is the average size home’s (3-4 bedroom)
use of water per minute. Larger homes will require larger
pumps.
4” pumps are oered in either 2-wire or 3-wire, indicating
the number of wires running from the pump motor.
2-wire motors have 3 wires running from the motor, 2 to
provide electric service and 1 ground wire. The motor
controls are in the motor in the well.
3-wire motors have 4 wires running from the motor, 3 to
provide electric service and 1 ground wire. These motors
require a motor control box mounted on the wall near your
water pressure tank.
2-wire motors are typically only used in wells less than
300’ depths and 3-wire motors can be used in wells at any
depth.
Some users prefer their motor controls be readily available
for service. A 3-wire pump with control box mounted near
the tank provides ease of serviceability.
Knowing the above and prior to installing or removing and
reinstalling your 4” pump, please conrm the following:
• The correct HP for the depth the pump will be in the well.
• The correct GPM (gallons per minute) for your
application.
• The correct voltage
• The correct number of wires
• The correct control box (if applicable)
3-wire start components including capacitors and relays
are located in the control box for ease of service. 2-wire
start components are inside the hermetically sealed pump
motor and rarely fail. If failure does occur, the pump must
be replaced.
NOTE: Control box voltage and horsepower must match
pump voltage and horsepower.
PUMP CONTROL BOX
HP VOLTAGE HP VOLTAGE
1/2 115 1/2 115
1/2 230 1/2 230
3/4 230 3/4 230
1 230 1 230
1-1/2 230 1-1/2 230
4” submersible pumps are oered in two voltages, 115 or 230V. Be sure
you select a pump whose motor voltage matches the voltage at the well
Deeper wells require higher horsepower to deliver water
to the home. See chart at right to ensure you have chosen
the correct horsepower for your application.
PROPER 4” PUMP SELECTION
HP GPM PUMP DEPTH IN WELL
1/2 10 60-100’
3/4 10 100-175’
1 10 175-250’
1-1/2 10 greater than 250’
PRE-INSTALLATION
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