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Electrical 7
For parts or assistance, call Simer Customer Service at 1-800-468-7867
Dial Type Voltage Selector
Voltage is set to 230 volts. To change to 115 volts:
1. Make sure power is off.
2. Turn the dial counter-clockwise until 115 shows in
the dial window as shown in Figure 5.
3. Attach the incoming power leads to the two outer
screws on the pressure switch as shown in Figure 4.
4. Attach the ground wire to the grounding connections
as shown in Figure 4.
5. If there are other wires, they should be capped.
6. Reinstall the motor end and pressure switch covers.
Hazardous voltage. Can shock, burn, or
kill. Connect ground wire before connecting power
supply wires. Use the wire size (including the ground
wire) specified in the wiring chart. If possible, connect
the pump to a separate branch circuit with no other
appliances on it.
Explosion hazard. Do not ground to a gas
supply line.
Wiring Connections
Fire hazard. Incorrect voltage can cause
a fire or seriously damage the motor and voids the
warranty. The supply voltage must be within ±10% of the
motor nameplate voltage.
NOTICE: Dual-voltage motors may be set for 115V
or 230V. If necessary, reset the motor to the desired
voltage, as shown. Do not alter the wiring in single
voltagemotors.
Install, ground, wire, and maintain your pump in
compliance with the National Electrical Code (NEC) or
the Canadian Electrical Code (CEC), as applicable, and
with all local codes and ordinances that apply. Consult
your local building inspector for code information.
Connection Procedure:
1. Connect the ground wire first as shown in Figure 4.
The ground wire must be a solid copper wire at least
as large as the power supply wires.
2. There must be a solid metal connection between the
pressure switch and the motor for motor grounding
protection. If the pressure switch is not connected
to the motor, connect the green ground screw in the
switch to the green ground screw under the motor
end cover. Use a solid copper wire at least as large
as the power supply wires.
3. Connect the ground wire to a grounded lead in a
service panel, to a metal underground water pipe, to
a metal well casing at least ten feet (3m) long, or to
a ground electrode provided by the power company
or the hydro authority.
4. Connect the power supply wires to the pressure
switch as shown in Figure 4.
You have just completed the wiring for your pump.
Please go to Priming for startup preparations.
Figure 4: Voltage set to 230 volts, Dial Type
Ground Wire Connection
Power Supply Connections
Voltage
Change
Dial
Pressure Switch
Figure 5: Voltage set to 115 volts, Dial Type
Disconnect power before working on pump, motor, pressure switch, or wiring.
Motor Switch Settings
NOTICE: 1/2 HP motors are dual voltage and are factory set to 115V. Motor terminal board (located under the motor
end cover) should look like that shown below. Use the instructions to set your motor to match your power source.
Never connect a motor set to 115V to a 230V power source.