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4" submersible pumps with a 1-1/4" discharge are
supplied with a REMOVABLE poppet style check
valve assembly. The check valve can be removed from
the pump discharge when the pump is installed in
applications where drain back is desired.
W A R N I N G
Fluid draining back through the pump
can cause the pump to rotate backwards. If pump/
motor starts during this time; damage to the pump
can occur.
The check valve can be removed with the use of the
T-Handle Poppet Wrench(part no. 23498207). Ordered
separately. Or, with standard needle nose pliers. The
Poppet Assembly
poppet assembly is left hand threaded and is removed
by turning CLOCKWISE.
If reinstalling a popppet check valve assembly, the
assembly should be tightened to 15 inch-pounds.
ELECTRICAL INFORMATION
1. Employ a licensed electrician to perform the wiring.
All wiring must be done in accordance with applicable
national and local electrical codes.
2. Check that the power supply corresponds with the
electrical rating of the submersible motor and the
control box(if required). Make sure that the control box
electrical rating matches the motor electrical rating.
3. Every installation requires a fused disconnect switch
or circuit breaker.
4. Every installation must be grounded. There must be
a reliable ground connection between the pump and
the distribution panel. The motor lead incorporates a
green grounding conductor.
5. Lightning arrestors are recommended for every
installation. All stainless steel, single phase motors
thru 5HP have built-in lightning arrestors. 4" 3-phase
motor requires a separate lightning arrestor installed as
close to the installation as possible. Install the arrestor
in accordance with manufacturers recommendations.
A lightning arrestor provides protection against
induced voltage surges on secondary power lines; it is
not effective against direct hits.
6. Mount the control box in an area protected from
rain, snow, direct sunlight or other high temperatures
as this may cause tripping of the overload protector.
Also protect the control box from extreme cold (below
25° F/-32° C) as this may have adverse effects on
starting capacitor.
7. A two-wire pump does not require a motor control
T-Handle Poppet Wrench
FIGURE 1 - 2-WIRE, 1-PHASE, 1/2 THRU 1-1/2 HP
PUMP WIRING DIAGRAM
Circuit Breaker or Fuse Disconnect Switch
Incoming 1-Phase Power
1-Phase Submersible Motor
box, since all electrical components are built inside the
motor. Fig. 1 shows a typical wiring diagram for a two-
wire installation.
8. A three-wire, single-phase pump requires a motor
control box incorporating overload relays. Fig. 2 shows
a typical wiring diagram for a three-wire, single-phase
installation. Note that a magnetic contactor must be
used if the switch electrical rating is not suffi cient
to handle the submersible motor electrical rating.
The switch would then be incorporated into a pilot
circuit to control the magnetic contactor. Make the
connections at the control box in accordance with the
wiring diagram in the control box to avoid damage to
the motor.
9. Use an ohmeter to make continuity and insulation
checks after the installation is completed.
10. Place the additional pump nameplate onto the
submersible label and place both onto disconnect
switch or circuit breaker box for future reference.
WATER SOURCE TEST
Check the pump performance before making the fi nal
connection to the discharge system.
1. Install a gate valve on the end of the pipe. Partially
open the valve.
FIGURE 2 - 3-WIRE, 1-PHASE, 1/2 THRU 3 HP PUMP
WIRING DIAGRAM
Pressure Switch (for pilot circuit)
If Magnetic Contactor is used for starting.
Circuit Breaker
or Fused
Disconnect Switch
Incoming 1-Phase Power
Pressure Switch (for direct switching) OR
Magnetic Contactor (w/ pilot circuit)
1-Phase Sumbersible Motor
Note: Order of red, yellow and black may vary from control box to
control box. Always connect like colors.
Pressure Switch
Submersible
Cable
Single-Phase Control Box
L1 L2 R Y B
Red
Yellow
Black
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