7. Installation of the AYB cable (91125604):
a. Remove the plug from each MLE terminal box with a flat head
screw driver. See fig. 'Removing the plug and connecting cable
gland to the terminal box'.
b. Screw a new cable gland into each MLE terminal box with a
crescent wrench. See fig. 'Removing the plug and connecting
cable gland to the terminal box'.
c. Loosen the new cable gland caps and push the cable ends
through the cable glands and into MLE motors.
d. Remove the AYB connector plug from the first MLE motor.
See fig. 'AYB connector plug'.
e. Connect the black wire to the A terminal of the AYB connector
plug.
f. Connect the orange wire to the Y terminal of the AYB
connector plug.
g. Connect the red wire to the B terminal of the AYB connector
plug.
h. Reconnect the AYB connector plug to the first MLE motor.
i. Tighten the cable gland cap to secure the cable. See fig.
'Removing the plug and connecting cable gland to the terminal
box'.
j. Repeat steps d to i for the second MLE motor.
8. Connect the power supply to the two pumps according to the
installation and operation instructions.
9. Use Grundfos R100 to check that the Operating mode is set to
Normal in the operation menu of the second pump.
10. Use Grundfos R100 to set the other displays as required for the
pump application (such as Setpoint).
11. Use Grundfos R100 to set the duty/standby to Active in the
installation menu of the second pump. Please note the second
pump will search for the first pump and automatically set the
duty/standby to Active in the installation menu.
12. The second pump will operate for the first 24 hours. The two
pumps will then alternate operation every 24 hours.
TM051626
Removing the plug and connecting cable gland to the terminal box
Pos. Description
A Plug
B Cable gland
TM052985
AYB connector plug
20
English (US)
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