Sears 390.26280, Owner'S Manual, Page: 5 / 12

5
ELECTRICAL
Ground motor before
connecting to electrical
power supply. Failure to
ground pump motor can
cause serious or fatal elec-
trical 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 electri-
cal connections.
Ground Fault Circuit
Interrupter (GFCI) trip-
ping indicates electrical problem. If GFCI trips and
won't reset, consult electrician to inspect and repair
electrical system.
Fire hazard. Match supply voltage to motor
nameplate voltage.
Voltage
Voltage at motor must not be more than 10% above or
below motor nameplate rated voltage or motor may over-
heat, causing overload tripping and reduced component
life. If voltage is less than 90% ore more than 110% of rated
voltage when motor is running at full load, consult power
company.
Grounding/Bonding
Install, ground, bond and wire motor according to local or
National Electrical Code requirements.
Permanently ground motor. Use green ground terminal
provided under motor canopy or access plate (see Figure
2); use size and type wire required by code. Connect
motor ground terminal to electrical service ground.
Bond motor to pool structure. Use a solid copper con-
ductor, size No. 8 AWG (8.4 mm
2 ) or larger. Run wire from
external bonding lug (see Figure 2) to reinforcing rod or
mesh.
Connect a No. 8 AWG (8.4 mm 2 ) solid copper bonding
wire to the pressure wire connector provided on the
motor housing and to all metal parts of swimming pool,
spa, or hot tub and to all electrical equipment, metal pip-
ing or conduit within 5 ft. (1.5m) of inside walls of swim-
ming pool, spa, or hot tub.
Wiring
Pump must be permanently connected to circuit. Table I,
Page 6, gives correct wire and circuit breaker sizes for the
pump alone. If other lights or appliances are also on the
same circuit, be sure to add their amp loads to pump amp
load before figuring wire and circuit breaker sizes. (If un-
sure how to do this or if this is confusing, consult a li-
censed electrician.) Use the load circuit breaker as the
master on-off switch.
Install a Ground Fault Circuit Interrupter (GFCI) in circuit;
it will sense a short-circuit to ground and disconnect
power before it becomes dangerous to pool users. For size
of GFCI required and test procedures for GFCI, see man-
ufacturer’s instruction.
In case of power outage, check GFCI for tripping (which
will prevent normal pump operation). Reset if necessary.
NOTICE:
If you do not use conduit when wiring motor,
be sure
to seal wire opening on end of motor to prevent
dirt, bugs, etc., from entering.
FIGURE 2 - Typical ground screw and bonding
lug locations.
FIGURE 3
Bonding
Lug
Motor Nameplate
Green
Ground
Screw
Motor
Canopy
Through
Bolts
349 0893
A
B
L2
L1
A
B
L2
L1
To convert dual-voltage motors
from 230 to 115 Volts:
Move white wire w/black
tracer from B to A.
Move black wire
from A to L1.
A
B
L2
L1
A
B
L2
L1
Clamp
power
cable
to prevent
strain on
terminal
screws.
White w/
Black Tracer
Black
Motor Ground
Screw
Connect ground wire
to motor ground screw
as shown.
Connect power supply wires
to the terminal board
as shown.
Ground
Wire
1410 1194
Disconnect power from
motor.
Move white wire w/black
tracer from B to A.
Move black wire
from A to L1.
WARNING
Hazardous voltage. Can
shock, burn, or cause
death.
Ground pump before con-
necting to power supply.