Master 123340, Owner'S Manual, Page: 6 / 20

Electrical 6
For parts or assistance, call Master Plumber Customer Service at
1-800-628-9439
MOTOR SWITCH SETTINGS
Dual-voltage motors (motors that can operate at either
115 or 230 volts), are set at the factory to 230 volts.
Do not change motor voltage setting if line voltage is
230 volts, or if you have a single voltage motor.
NOTE: Never wire a 115 volt motor to a 230 volt line.
REMOVE MOTOR END COVER
If you have a dual-voltage motor, and will connect it to
115 volts, follow the procedure below.
You will need to remove the motor end cover to change
the voltage setting.
Your motor terminal board (located under the motor end
cover) should look like Figure 4.
SELECTING VOLTAGE WITH DIAL TYPE
VOLTAGE SELECTOR
To change to 115 volts:
1. Make sure power is off.
2. Turn the dial counter-clockwise until 115 shows in the
dial window.
3. Attach the power lead wires to the power lead termi-
nals. Make sure the wires are secure.
4. Attach the ground wire to the green ground screw
5. Reinstall the Motor end cover
Go to “Wiring”, Page 7.
Hazardous voltage. Can shock, burn, or
cause death. Disconnect power to motor
before working on pump or motor. Ground motor before
connecting to power supply.
Figure 3: Removing Motor End Cover
Motor
End Cover
End Cover Screws
4693
Figure 4: Voltage set to 230 volts, Dial Type; turn dial to
select 115 volts.
Power Supply
Terminals
Ground Wire
Terminal
For 115 Volt
For 230 Volt
5730 0117