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ELECTRICAL
WIRING CONNECTIONS
[_.WARNING_ 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 are factory wired for 230 volts. If nec-
essary, reconnect the motor for 115 volts, as shown. Do not alter
the wiring in single voltage motors.
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.
Motor wires connecthere.
-Power supply wires connecthere.
230 Volt: Connect2 hotwires(black and red)
here andcap the white(neutral)wire. itdoes
notmatterwhichwire goesto whichscrew.
115 Volt: Connectone hotwire (blackor red)
to one ofthese screws(itdoesn'tmatter
whichone). Connec_the white(neutral) wire
tothe otherscrew. Cap any remaining
•blackor red wires.
prevent strain
onthe terminal screws.
- Connect the green (or bare copper) ground wire
to the green ground screw.
3187 0398
FIGURE 6 - Pressure switch wiring
Connection Procedure:
1. Connect the ground wire first as shown in Figure 9. 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 6.
5. Reinstall the pressure switch cover.
TABLE II - RECOMMENDED FUSING AND WIRING DATA
Pump Model
390.2514
390.2518
Motor
Horsepower
1/2
Max. Load
Amperes
10.5/5.2
Volts
115/230
115/230
Branch
Delayed Fuse
Rating Amps
15/15
Distance in Feet From Motor to Meter
0to 51 to 101 to 201 to
50 100 200 300
Wire Size
14/14 14/14 10/14 8/14
3/4 12.4/6.2 20/15 12/14 12/14 10/14 8/14