STA-RITE MPRA6D-146L Installation, Operation & Parts page 6

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 3); 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
conductor, size No. 8 AWG (8.4 sq.mm) or larger. Run
Green
Ground
Screw
A A
L 2 L 2
L 1 L 1
Figure 3 – Typical ground screw and bonding lug
locations.
wire from external bonding lug (see Figure 3) to reinforcing
rod or mesh.
Connect a No. 8 AWG (8.4 sq.mm) solid copper
bonding wire to the pressure wire connector provided
on the motor housing and to all metal parts of the
swimming pool, spa, or hot tub and to all electrical
equipment, metal piping or conduit within 5 feet (1.5 m)
of the inside walls of swimming pool, spa, or hot tub.
Wiring
NOTICE: 3 phase models require magnetic motor
starters and external overload protection. If in doubt
about the procedure, consult a licensed electrician.
Pump must be permanently connected to circuit. Table
I, Page 8, give 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 unsure how to do this or if this is confusing,
consult a licensed 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 manufacturer'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.
Risk of dangerous or fatal electrical shock.
Be sure that power to the motor circuit is off before
working on wiring, wiring connections, or motor. Re-
Bonding
Lug
install the motor end cover and all other wiring covers
before turning on the power.
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.
Figure 4 - Removing motor end cover.
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
Ground
Screw
Voltage Change
Plug
Figure 5 – Voltage set to 230 volts, Plug Type.
cover) should look like one of those below.
Plug Type Voltage Selector
To change to 115 volts:
1. Make sure power is off.
2. Pull the plug straight up.
6
Power Lead
Terminals