4
Connection diagram for dual voltage, single-phase motors.
Your dual-voltage motor’s terminal board (under the motor
end cover) will match one of the diagrams below. Follow that
diagram if necessary to convert motor to 115 Volt power.
Connect power supply wires to L1 and L2. For 3-phase
motors, or if motor does not match these pictures, follow the
connection diagram on the motor nameplate.
THE MOTOR IS SET FOR 230 VOLTS
WHEN SHIPPED.
To change the motor to use 115 volts:
1. Turn off power
2. Remove the back motor cover.
3. Use a screwdriver or 1/2” wrench and turn the voltage
selector dial counterclockwise until 115 shows in the dial
opening.
4. Reinstall the motor cover.
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.
WIRING
Ground motor before connecting to electrical power
supply. Failure to ground motor can cause severe
or fatal electrical shock hazard.
Do not ground to a gas supply line.
To avoid dangerous or fatal electrical shock, turn
OFF power to motor before working on electrical
connections.
Supply voltage must be within ±10% of nameplate
voltage. Incorrect voltage can cause fire or damage
motor and voids warranty. If in doubt consult a licensed
electrician.
Use wire size specified in Wiring Chart (Page 3). If
possible, connect pump to a separate branch circuit
with no other appliances on it.
Wire motor according to diagram on motor name-
plate. If nameplate diagram differs from diagrams
above, follow nameplate diagram.
1. Install, ground, wire and maintain your pump in compliance
with the National Electrical Code (NEC) in the U.S., 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.
2. Provide a correctly fused disconnect switch for protection
while working on motor. For switch requirements, consult
your local building inspector for information about codes.
3. Disconnect power before servicing motor or pump. If the
disconnect switch is out of sight of pump, lock it open and
tag it to prevent unexpected power application.
4. Ground the pump permanently using a wire of the same
size as that specified in wiring chart (Page 3). Make ground
connection to green grounding terminal under motor
canopy marked GRD. or
.
5. Connect ground wire to a grounded lead in the service
panel or to a metal underground water pipe or well casing
at least 10 feet long. Do not connect to plastic pipe or insu-
lated fittings.
6. Protect current carrying and grounding conductors from
cuts, grease, heat, oil, and chemicals.
7. Connect current carrying conductors to terminals L1 and L2
under motor canopy. When replacing motor, check wiring
diagram on motor nameplate against Figure ##. If the motor
wiring diagram does not match either diagram in Figure 3,
follow the diagram on the motor.
IMPORTANT:
115/230 Volt single phase models are shipped
from factory with motor wired for 230 volts. If power supply is
115 volts, remove motor canopy and reconnect motor as
shown in Figure 3. Do not try to run motor as received on 115
volt current.
8. Motor has automatic internal thermal overload protection. If
motor has stopped for unknown reasons, thermal overload
may restart it unexpectedly, which could cause injury or
property damage. Disconnect power before servicing
motor.
9. If this procedure or the wiring diagrams are confusing, con-
sult a licensed electrician.
ELECTRICAL
Figure 3: Changing the Voltage Setting
Figure 4: Motor Set for 115 Volt Operation
