Pentair MYERS MPB Serie Manual De Instalación Y Funcionamiento página 5

Disconnect power before working on pump, motor, pressure switch, or wiring.
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.
REMOVE MOTOR END COVER
If you have a dual-voltage motor, and will connect it to
115 volts, follow the procedure below.
End Cover Screws
Motor
End Cover
Figure 5 – Removing Motor End Cover.
You will need to remove the motor end cover to
change the voltage setting.
Your motor terminal board (located under the motor
end cover) should look like one of those below.
PLUG TYPE VOLTAGE SELECTOR
Ground
Screw
Voltage Change
Plug
Figure 6 – Voltage set to 230 volts, Plug Type.
To change to 115 volts:
1. Make sure power is off.
2. Pull the plug straight up.
3. Move and attach the plug at the 115 volt position.
The plug will now cover 2 metal tabs. The arrow on
the plug will point to 115V.
4. Attach the power lead wires to the power lead
terminals. Make sure the wires are secure.
5. Attach the ground wire to the green ground screw
6. Reinstall the Motor end cover
Go to Wiring Connections below.
DIAL TYPE VOLTAGE SELECTOR
Figure 7 – Voltage set to 230 volts, Dial Type.
To change to 115 volts:
1. Make sure power is off.
2. Turn the dial counter-clockwise until 115 shows in
3. Attach the power lead wires to the power lead
4. Attach the ground wire to the green ground screw
5. Reinstall the Motor end cover
Go to Wiring Connections below.
ELECTRICAL
Power Lead
Terminals
electrical connections.
cause fire or serious damage to motor and voids
warranty. If in doubt consult a licensed electrician.
branch circuit with no other appliances on it.
diagrams above, follow nameplate diagram.
* Models with power cords are pre-wired for 115 volts.
This includes models 7MPB50 and 7MPB75.
5
Ground
Screw
Voltage
Change Dial
the dial window.
terminals. Make sure the wires are secure.
Ground motor before connecting to electrical
power supply.
Failure to ground motor can cause severe or
fatal electrical shock hazard.
Explosion hazard. Do not ground to a gas
supply line.
To avoid dangerous or fatal electrical shock,
turn OFF power to motor before working on
Supply voltage must be within ±10% of
nameplate voltage. Incorrect voltage can
Use wire size specified in Wiring Chart (Table II,
Page 6). If possible, connect pump to a separate
Wire motor according to diagram on motor
nameplate. If nameplate diagram differs from
Power Lead
Terminals