INSTALLATION
Vertical Express Product Manual 1-13 88600 v.1.0
Installation Section Temporary Operation
Pump Motor Rotation
Swapping motor leads to correct motor rotation will result in a motor wiring
fault. Motor rotation is controlled through adjustments in the starter and
also the line input to the starter.
1. Turn ON the mainline disconnect.
2. Momentarily press UP and SAFE on the temporary run box, and observe the
direction of the motor rotation (clockwise rotation is standard for Vertical Express
equipment when viewed from the shaft end).
ABC = Standard Dry (AP) units (CW rotation as viewed from the shaft end). The
motor is mounted to the left of the pump.
CBA = Standard Wet (EP) units (CCW rotation as viewed from the pump end).
– If the motor rotation is correct, continue to Step 5.
– If the rotation is incorrect, complete the appropriate procedure below.
• For Mechanical Starters - Reverse L1 and L2 on the starter.
• For Electronic Starters - Change the line rotation setting in the starter.
a. Press
once. The STATUS menu displays.
b. Press
twice. The PARAMETERS menu displays.
c. Press
and STARTING AMPS displays.
d. Press
until LINE ROTATION displays.
e. Press
to access the value.
f. Press
for CBA. (CBA = standard wet unit.)
g. Press
to select the value displayed.
h. Press
to accept the value, or to reject the change. If the wrong value is
accepted, repeat steps e. through h.
3. Verify the correct motor wiring. See Figure 11 on page 1-14.
4. Check the motor rotation direction. If the direction is incorrect or if the
motor is making loud sounds, swap two phase leads at the top of the con-
troller’s main line fuses (FL1 - FL3).
5. Confirm the motor rotation. It may take multiple attempts to get the incoming line
phase relationship correct.
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