Pentair MYERS MFL Serie Manual Del Usuario página 6

Electrical
Disconnect power before working on pump, motor, pressure switch, or wiring.
Motor Switch Settings
NOTICE: 1/2 HP motors are dual voltage and are factory set to 115 V. 3/4 & 1 HP motors are also dual voltage, but are
factory set to 230 V. Motor terminal board (located under the motor end cover) should look like that shown below. Use
the instructions to set your motor to match your power source.
Never connect a motor set to 115 V to a 230 V power source.
Plug Type Voltage Selector
Voltage is set to 230 V. To change to 115 V:
Voltage Change Plug
Ground Wire Connection
Figure 8: Voltage set to 230 V, Plug Type
1. Make sure power is off.
2. Pull the voltage change plug off of the tabs.
3. Move the voltage change plug to the 115 V position.
The plug will now cover 2 metal tabs and the arrow
on the plug will line up with the 115V arrow on the
label (see Figure 9).
Figure 9: Voltage set to 115 V, Plug Type
4. Attach the incoming power leads to the two outer
screws on the pressure switch as shown in Figure 8.
5. Attach the ground wire to one of the grounding
connections, shown in Figure 8.
6. If there are other wires, they should be capped.
7. Reinstall the motor end and pressure switch covers.
Power Connections
Pressure Switch
4530
Dial Type Voltage Selector
Voltage is set to 230 V. To change to 115 V:
Power Supply Connections
Voltage
Change
Dial
Ground Wire Connection
Figure 10: Voltage set to 230 V, Dial Type
1. Make sure power is off.
2. Turn the dial counter-clockwise until 115 shows in
the dial window as shown in Figure 11.
Figure 11: Voltage set to 115 V, Dial Type
3. Attach the incoming power leads to the two outer
screws on the pressure switch as shown in Figure 10.
4. Attach the ground wire to the grounding connections
as shown in Figure 10.
5. If there are other wires, they should be capped.
6. Reinstall the motor end and pressure switch covers.
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Pressure Switch