6
ASSEMBlING ThE REDI-FlO VFD SYSTEM
Input power terminals
The input voltage can be changed between 115V and 230V by changing the line input connections as shown below:
Warning – If the Redi-Flo VFD is miswired for the incoming voltage, internal damage may occur to the drive.
230VAC
115VAC
RGNDNL2L1
Black GreenWhite
2 Bt/R1 B- T1 T2 T3 GND
To Motor
To Motor
RGNDNL2L1
Black GreenWhite
2 Bt/R1 B- T1 T2 T3 GND
Reverse Rotation Test
Connect the motor lead to the Redi-Flo VFD and test the rotation of the pump. Submerge
the pump in water, start it at its slowest speed and make sure the pump shaft is turning
counterclockwise (when viewed from the top). If the rotation is incorrect, switching any two
power leads (with POWER OFF) will correct the problem.
Attaching the Pump to the Pipe
When connecting piping to the pump, a back-up wrench should be used. After the first section of pipe has been
attached to the pump, the safety cable should be connected to the pump (as shown if figure 6). Do not clamp
to the pump. When raising the pump, be careful not to place bending stress on the pump by picking it up by
the pump end only. It is recommended that a safety cable be attached to the pump (using special brackets and
cables, sold separately) anytime plastic pipe or flexible tubing is used. A check valve may also be added to
Redi-Flo2® pumps to prevent fluid from flowing back into the pump after it is turned off (backflow prevention). A
check valve is standard on Redi-Flo4™ pumps. Always check to ensure joints are fastened securely. The use of
a torque arrestor is not required when using the Redi-Flo VFD.
Lowering the Pump into the Well
Make sure the electrical motor leads are not cut or damaged in any way when the pump is being lowered into
the well. Do not use the motor leads to support the weight of the pump. To protect against surface water entering
the well and contaminating the well, the well should be finished off utilizing a locally approved well seal.
The motor lead should be secured to the discharge pipe at frequent intervals to prevent sagging, looping and
possible motor lead damage. Teflon® wire ties are recommended for environmental applications.
IMPORTANT
Plastic pipe and tubing tend to stretch under load. This stretching must be taken into account when securing
the motor lead to the riser pipe or tubing. Leave three to four inches of slack between clipped points. This
tendency to stretch will also affect the calculation of the pump setting depth. When plastic pipe or tubing is
used, it is recommended that a safety cable be attached to the pump to raise and lower it. Redi-Flo4™ pumps
are designed to accommodate this cable and Redi-Flo2® pumps can be fitted with a safety cable bracket (part
number 1A0019).
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