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INSTALLATION OF PUMP, DROP PIPE, AND
ASSOCIATED EQUIPMENT
Fig. 1 illustrates a typical well installation showing in-
ground components. Franklin recommends the following
procedure when installing the pump and drop pipe:
1. Prior to fastening the pump/motor assembly to the
drop pipe, confirm that the motor's lead wires are
securely housed under lead guard which was supplied
with the pump. Fastening screws have been provided
for use during the lead guard's installation.
2. Fasten the submersible cable to the drop pipe with
clamps or appropriate tape every 10 ft. (3m) to prevent
tangling and damage to the cable. The cable must
remain slack when using plastic drop pipe to allow for
stretching of pipe when installed in the well.
3. Take care not to scrape or pinch the submersible cable
against the well casing.
4. Use an ohmmeter or megger to make insulation and
continuity checks on the cable once the pump is
installed. This locates any fault in the cable.
5. Make sure a check valve is installed immediately
above the pump. Install additional check valves at 100'
(30m) intervals.
6. Install a torque arrestor just above the pump to
prevent chafing the cable when pump and pipe twist
during starting and stopping.
7. Attach a safety cable to pump to prevent loss of
pump if pipe should break.
NOTICE: IT IS RECOMMENDED THAT STEEL CABLE BE
USED FOR THE PURPOSES OF SECURING THE PUMP.
3/16" DIAMETER TO 1/4" DIAMETER BRAIDED STEEL
CABLE IS SUFFICIENT TO SUPPORT MOST PUMP/
MOTOR SYSTEMS. IT IS ALWAYS BEST TO CONFIRM THAT
THE PUMP/MOTOR SYSTEM DOES NOT ExCEED THE
MAxIMUM WEIGHT LIMIT OF THE CABLE SELECTED.
8. Place a sanitary well seal or pitless adapter with
an approved cover plate over top of well per
manufacturers recommendations.
9. Keep pump at least 5' (1.5m) from bottom of well and
above well screen or casing perforations.
4
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. Any 6" motor
or 4", 3-phase motor requires a separate lightning
arrestor installed as close to the wellhead as possible.
Install the arrestor in accordance with manufacturers
recommendations. A lightning arrestor provides
protection against induced voltage surges on
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
o
o
25
F/-32
C) as this may have adverse effects on
starting capacitor.
7. A two-wire pump does not require a motor control box,
since all electrical components are built inside the
motor. Fig. 2 shows a typical wiring diagram for a two-
wire installation.
FIGURE 2 - 2 WIRE, 1-Phase, 1/2 thru 1-1/2 HP
Pump Wiring Diagram
Incoming 1-Phase Power
1-Phase Submersible Motor
Circuit Breaker or
Fuse Disconnect Switch
Switch or Timer
Submersible Cable
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