Electrical
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 115 V. 3/4 & 1 HP motors are also dual voltage, but are
factory set to 230 V. 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 115 V to a 230 V power source.
Power Supply Connections
Voltage
Change
Dial
Ground Wire Connection
Figure 14: Voltage set to 230 volts, Dial Type
Figure 15: Voltage set to 115 volts, Dial Type
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 15.
3. Attach the incoming power leads to the two outer
screws on the pressure switch as shown in Figure 14.
4. Attach the ground wire to the grounding connections
as shown in Figure 14.
5. If there are other wires, they should be capped.
6. Reinstall the Motor end cover.
Pressure Switch
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.
supply line.
Hazardous voltage . Can shock, burn, or
Explosion hazard . Do not ground to a gas
9