Pentair MPEA, MPRA Grounding/Bonding, Wiring, To Wire a Single Speed, Single Voltage Motor

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 4); 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 wire from exter- nal bonding lug (see Figure 4) to reinforcing rod or mesh.

Bonding

Lug

Green

Ground

Screw

A

L2

L1

Figure 4 – Typical ground screw and bonding lug locations.

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-in- stall the motor end cover and all other wiring covers be- fore turning on the power.

1.Turn off power.

2.Remove the motor end cover.

To Wire a Single Speed, Single Voltage Motor

There are two terminals labeled L1 and L2. Attach the power leads to these terminals. Either wire may attach to either terminal.

To Wire a Dual-Voltage Motor

Dual voltage motors have a plug to change from 230 volts (factory setting) to 115 volts.

1.If you have 230 volts motor supply voltage, confirm that the plug is set for 230 volts. The arrow on the plug will point to the 230 volt position. Note that plug only connects with one prong in this position.

2.If you have 115 volt supply, pull the plug straight up and place it on the two brass prongs as shown.

Figure 5A -Voltage Change	Figure 5B -Voltage Change
Plug Set for 230 Volts	Plug Set for 115 Volts

NOTE: Arrow is highlighted for clarity.

To Wire a Two-Speed Motor

Wire the pump as shown in the diagram.

		Ground (Green)
			Low Speed	230
Back of	L2=COM L1=HI A=LOW	A		Volt
		L2	Common	Lines
motor
with			Power Supply for
Terminal			Optional Timer.
Board		L1
			High Speed	Remote	Circuit
				SPDT	Protector

Switch
If using timer, Connect
Timer Motor to Low Speed Only	4558 0304

Minimum switch and timer amp rating must equal Branch Fuse Rating given in "Recommended Fusing and Wiring Data" table.

Figure 5C: 2-Speed Motor Wiring Diagram

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