Craftsman 390.251883 - Manual (Page 5)

ELECTRICAL
^ Disconnect power before working on pump, motor, pressure switch, or wiring.
Your Motor Terminal Board (under the motor end cover) and
Pressure Switch look like one of those shown below. Convert to
115 Volts as shown. Do not change motor wiring if line voltage is
230 Volts or if you have a single voltage motor. Connect power
supply as shown for your type of switeh and your supply voltage.
230 Volt to 115 Volt Conversion, Plug-in Type:
1. Pull plug
straight
out from
terminal
board.
2 . Plug In again
with arrow
on plug
pointing to
'115 Volts'.
Ground
Screw
230 Volt to 115 Volt CoriVersion, Plug-in Type:
Move plug to change voltage. ^
X 230 V
115 V
Grounding Point
®\\
Power Supply Wires
3781 1000
Motor wires connect here.
Power supply wires connect here.
230 Volt: Connect 2 hot wires (black and red)
here and cap the white (neutral) wire. It does
not matter which wire goes to which screw.
115 Volt: Connect one hot wire (black or red)
to one of these screws (it doesn't matter
which one). Connect the white (neutral) wire
to the other screw. Cap any remaining
black or red wires.
Clamp the power cable to prevent strain
on the terminal screws.
Connect the green (or bare copper) ground wire
to the green ground screw.
Motor wires connect here.
-Power supply wires connect here.
230 Volt: Connect 2 hot wires (black and red)
here and cap the white (neutral) wire. It does
not matter which wire goes to which screw. ■
115 Volt: Connect one hot wire (black or red)
to one of these screws (it doesn't matter
which one). Connect the white (neutral) wire
to the other screw. Cap any remaining
I- black or red wires.
Clamp the power cable to prevent strain
on the terminal screws.
.
■ Connect the green (or bare copper) ground wire
to the green ground screw.
FIGURE 4: Motor wiring connections through Pressure Switch. Match motor voltage to line voltage.
L WARNING I Hazardous voltage. Can shock, bum, or kill.
Connect ground wire before connecting power supply
wires. Use the wire size (including the ground wire) speci­
fied in the wiring chart. If possible, connect the pump to a sep­
arate branch circuit with no other appliances on it.
Explosion hazard. Do not ground to a gas sup- A WARNING
ply line.
WIRING CONNECTIONS
A WARNING pjj.g 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.
Connection Procedure:
1. Connect the ground wire first as shown in Figure 4. The ground
wire must he 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 wcU 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.