Pentair FP4000 Series User manual

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OWNER'S MANUAL
SHALLOW WELL JET PUMPS
P15002 (11-01-2022)
©2022 Pentair. All Rights Reserved.
ENGLISH 1 - 24 FRENCH 25 - 48 SPANISH 49 - 72

P15002 (11-01-22)
TABLE OF CONTENTS
SAFETY INFORMATION ...................................................................................................3
INSTALLATION ..........................................................................................................4
DISCHARGE PIPE AND PRESSURE TANK CONNECTIONS .....................................................................6
ELECTRICAL ............................................................................................................7
START THE PUMP ........................................................................................................9
TROUBLESHOOTING ....................................................................................................10
PARTS INDEX ...........................................................................................................12
WARRANTIES...........................................................................................................22

3
P15002 (11-01-22)
SAFETY INFORMATION
 Wire motor for correct voltage. See
“Electrical” section of this manual and
motor nameplate.
 Ground motor before connecting to
power supply.
 Meet National Electrical Code,
Canadian Electrical Code, and local
codes for all wiring.
 Follow wiring instructions in this
manual when connecting motor to
power lines.
GENERAL SAFETY
DO NOT TOUCH AN OPERATING MOTOR. Modern
motors are designed to operate at high temperatures. To avoid
burns when servicing pump, allow it to cool for 20 minutes after
shut-down before handling.
 DO NOT allow pump or any system component to freeze. To
do so will void warranty.
 Pump water only with this pump.
 Periodically inspect pump and system components.
 Wear safety glasses at all times when working on pumps.
 Keep work area clean, uncluttered and properly lighted;
store properly all unused tools and equipment.
 Keep visitors at a safe distance from the work areas.
Pump body may explode if used as a booster pump
unless relief valve capable of passing full pump flow at 75 psi is
installed.
ELECTRICAL SAFETY
CAPACITOR VOLTAGE MAY BE HAZARDOUS. To
discharge motor capacitor, hold insulated handle screwdriver by
the handle and short capacitor terminals together. Do not touch
metal screwdriver blade or capacitor terminals. If in doubt,
consult a qualified electrician.
SAFETY SYMBOLS
This is the safety alert symbol. When you see this symbol on
your pump or in this manual, look for one of the following signal
words and be alert to the potential for personal injury:
warns about hazards that will cause serious
personal injury, death or major property damage if ignored.
warns about hazards that can cause serious
personal injury, death or major property damage if ignored.
warns about hazards that will or can cause minor
personal injury or property damage if ignored.
The word NOTICE indicates special instructions that are
important but not related to hazards.
CALIFORNIA PROPOSITION 65 WARNING
This product and related accessories contain
chemicals known to the State of California to cause cancer,
birth defects or other reproductive harm.
Hazardous pressure!
Install pressure relief valve in
discharge pipe.
Release all pressure on system
before working on any component.

4P15002 (11-01-22)
INSTALLATION
REPLACING AN OLD PUMP
HAZARDOUS VOLTAGE. Disconnect power to pump
before working on pump or motor.
1. Drain and remove the old pump. Check the old pipe for
scale, lime, rust, etc. Replace, if necessary.
2. Install the pump in the system. Make sure that all pipe
joints in the suction pipe are air-tight and water-tight. If the
suction pipe can suck air, the pump will not be able to pull
water from the well.
3. Adjust the pump mounting height so that the plumbing
connections do not put a strain on the pump body. Support
the pipe so that the pump body does not take the weight of
piping or fittings.
WELL POINT (DRIVEN POINT) INSTALLATION
1. Drive the well, using drive couplings and a drive cap. Drive
fittings are threaded all the way through and allow the pipe
ends to butt against each other so that the driving force of
the maul is carried by the pipe and not by the threads.
The ordinary fittings found in hardware stores are not
threaded all the way through the fitting and can collapse
under impact. Drive fittings are also smoother than
standard plumbing fittings, making ground penetration
easier.
2. Mount the pump as close to the well as possible.
3. Use the fewest possible fittings, especially elbows, when
connecting the pipe from the well point to the pump suction
port. The suction pipe should be at least as large as the
suction port on the pump. Include a check valve if your
pump is not equipped with one (Figure 1).
Support the pipe so that there are no dips or sags in the
pipe, so it doesn’t strain the pump body, and so that it
slopes slightly upward from the well to the pump (high spots
can cause air pockets which can air lock the pump).
Seal the suction pipe joints with PTFE pipe thread sealant
tape. Joints must be air-tight and water-tight. If the suction
pipe can suck air, the pump cannot pull water from the well.
If one well point does not supply enough water, consider
connecting two or three well points to one suction pipe.
4. Proceed to the Discharge Pipe and Tank Connections
section.
CASED WELL INSTALLATION, 2” OR LARGER CASING
1. Mount the pump as close to the well as possible.
2. Assemble the foot valve, strainer, and well pipe (Figure 2).
Make sure that the foot valve works freely.
3. Lower the pipe into the well until the strainer is 5 feet
above the bottom of the well. It should also be at least 10
feet below the well’s water level while the pump is running
in order to prevent the pump from sucking air. Install a
sanitary well seal.
Figure 1: Driven Point Installation Figure 2: Cased Well Installation

5
P15002 (11-01-22)
4. Install a priming tee, priming plug, and suction pipe to the
pump (Figure 2). Connect the pipe from the well to the pump
suction port, using the fewest possible fittings, especially
elbows, as fittings increase friction in the pipe. Include a
foot valve (Figure 2). The suction pipe should be at least
as large as the suction port on the pump. Use PTFE pipe
thread sealant tape on threaded
pipe joints.
Support the pipe so that there are no dips or sags in the
pipe, so it doesn’t strain the pump body, and so that it
slopes slightly upward from the well to the pump (high spots
can cause air pockets which can air lock the pump).
Seal the suction pipe joints with PTFE pipe thread sealant
tape. Joints must be air-tight and water-tight. If the suction
pipe can suck air, the pump cannot pull water from the well.
5. Proceed to the Discharge Pipe and Tank Connections
section.
INSTALLATION FOR SURFACE WATER
1. The pump should be installed as close to the water as
possible, with the fewest possible fittings (especially
elbows) in the suction pipe. The suction pipe should be at
least as large as the suction port on the pump.
2. Assemble a foot valve and suction pipe (Figure 3). Make
sure that the foot valve works freely. Use PTFE pipe thread
sealant tape on threaded pipe joints. Protect the foot valve
assembly from fish, trash, etc, by installing a screen around
it.
3. Lower the pipe into the water until the strainer is five feet
above the bottom. It should also be at least 10 feet below
the water level in order to prevent the pump from sucking
air.
4. Install a priming tee, priming plug, and suction pipe to the
pump (Figure 3). Support the pipe so that there are no dips
or sags in the pipe, so it doesn’t strain the pump body, and
so that it slopes slightly upward from the well to the pump
(high spots can cause air pockets which can air lock the
pump).
Seal the suction pipe joints with PTFE pipe thread sealant
tape. Joints must be air-tight and water-tight. If the suction
pipe can suck air, the pump cannot pull water from the well.
5. Proceed to the Discharge Pipe and Tank Connections
section.
Figure 3: Surface Water Installation
INSTALLATION

6P15002 (11-01-22)
DISCHARGE PIPE AND PRESSURE TANK CONNECTIONS
PRE-CHARGE TANK CONNECTION
1. Install two tees in the pump discharge port (Figure 4). The
pipe size must be at least as large as the discharge port.
2. Run a pipe or reinforced hose from one arm of the first tee
to the port on the pre-charged tank.
3. Connect the other end of the discharge tee to your plumb-
ing system.
4. Check the pre-charge of air in the tank with an ordinary tire
gauge. The pre-charge should be 2 PSI less than the cut-in
setting of the pump’s pressure switch. The pre-charge is
measured when there is no water pressure in the tank. Your
new pump has a 30/50 PSI switch, so adjust the tank pre-
charge pressure to 28 PSI.
5. Proceed to the Electrical section for hookup information.
STANDARD TANK CONNECTION
1. Install one tee in the pump discharge port (Figure 5).
2. Run a pipe from the pump discharge port to the inlet port
of your tank. The pipe size must be at least as large as the
discharge port.
3. Remove the 1/8” NPT pipe plug from the pump Air Volume
Control (AVC) port. Run tubing from the pump’s AVC port to
the port on the AVC mounted on the tank. See instructions
provided with tank and AVC for details. AVC port location
will vary, depending on your pump model (Refer to Parts
Index).
4. Proceed to the Electrical section for hookup information.
SEALING PIPE JOINTS
Use only PTFE pipe thread sealant tape for making all threaded connections to the pump itself. Do not use pipe joint
compounds on plastic pumps as they can react with the plastic in pump components. Make sure that all pipe joints in the
suction pipe are air tight as well as water tight. If the suction pipe can suck air, the pump will not be able to pull water from the
well.
Figure 4: Pre-Charged Tank Connections Figure 5: Standard Tank Connections

7
P15002 (11-01-22)
ELECTRICAL
MOTOR SWITCH SETTINGS
DISCONNECT POWER BEFORE WORKING ON PUMP, MOTOR,
PRESSURE SWITCH, OR WIRING.
1/2 HP motors are dual voltage and are factory set to 115 V. 3/4 &
1 HP motors are also dual voltage, but are factory set to 230 V.
Motor terminal board (located under the motor end cover) should
look like that shown below. Use the instructions to set your
motor to match your power source.
NEVER connect a motor set to 115 V to a 230 V
power source.
PLUG TYPE VOLTAGE SELECTOR
Voltage is set to 230 V . To change to 115 V:
1. Make sure power is off.
2. Pull the voltage change plug off of the tabs.
3. Move the voltage change plug to the 115 V position. The plug
will now cover 2 metal tabs and the arrow on the plug will
line up with the 115 V arrow on the label (see Figure 7).
4. Attach the incoming power leads to the two outer screws on
the pressure switch as shown in Figure 6.
5. Attach the ground wire to one of the grounding
connections, shown in Figure 6.
6. If there are other wires, they should be capped.
7. Reinstall the motor end and pressure switch covers.
DIAL TYPE VOLTAGE SELECTOR
Voltage is set to 230 volts . To change to 115 V:
Figure 6: Voltage set to 230 V, Plug Type
Figure 7: Voltage set to 115 V, Plug Type
1. Make sure power is off.
2. Turn the dial counter-clockwise until 115 shows in the dial
window as shown in Figure 9.
Figure 8: Voltage set to 230 V, Dial Type
Figure 9: Voltage set to 115 V, Dial Type
3. Attach the incoming power leads to the two outer screws on
the pressure switch as shown in Figure 8.
4. Attach the ground wire to the grounding connections as
shown in Figure 8.
5. If there are other wires, they should be capped.
6. Reinstall the motor end and pressure switch covers.

8P15002 (11-01-22)
ELECTRICAL
Hazardous voltage . Can shock, burn, or kill.
Connect ground wire before connecting power supply wires. Use
the wire size (including the ground wire) specified in the wiring
chart. If possible, connect the pump to a separate branch circuit
with no other appliances on it.
Explosion hazard. Do not ground to a gas
supply line.
WIRING CONNECTIONS
FIRE HAZARD. Incorrect voltage can cause a
fire or seriously damage the motor and voids the warranty. The
supply voltage must be within ±10% of the motor nameplate
voltage.
 Dual-voltage motors are factory wired for 230 volts. If
necessary, reconnect the motor for 115 volts, as shown. Do
not alter the wiring in single voltage motors.
 Install, ground, wire, and maintain your pump in compliance
with the United States National Electrical Code (NEC) or the
Canadian Electrical Code (CEC), as applicable, and with all
local codes and ordinances that apply. Consult your local
building inspector for code information.
CONNECTION PROCEDURE
1. Connect the ground wire first as shown in Figure 6. The
ground wire must be a solid copper wire at least as large as
the power supply wires.
2. There must be a solid metal connection between the
pressure switch and the motor for motor grounding
protection. If the pressure switch is not connected to the
motor, connect the green ground screw in the switch to the
green ground screw under the motor end cover. Use a solid
copper wire at least as large as the power supply wires.
3. Connect the ground wire to a grounded lead in a service
panel, to a metal underground water pipe, to a metal well
casing at least ten feet (3 m) long, or to a ground electrode
provided by the power company or the hydro authority.
4. Connect the power supply wires to the pressure switch as
shown in Figure 6.
WIRING CHART – RECOMMENDED WIRE AND FUSE SIZES
MOTOR HP VOLTS MAX.
LOAD AMP
BRANCH
FUSE
RATING AMP
DISTANCE IN FEET(METERS) FROM MOTOR TO SUPPLY
0-100 (0-30) 101-200 (31-61) 201-300 (62-91) 301-400 (92-122)
AWG WIRE SIZE (MM
2
)
1/2 115/230 8.5/4.3 15/15 14/14 (2/2) 12/14 (3/2) 10/14 (5.5/2) 8/14 (8.4/2)
3/4 115/230 11.4/5.7 20/15 14/14 (2/2) 10/14 (5.5/2) 8/14 (8.4/2) 6/12 (14/3)
1115/230 12.2/6.1 25/15 12/14 (3/2) 8/14 (8.4/2) 8/14 (8.4/2) 6/12 (14/3)
FP4000, FP4100, 2800E, 3100P SERIES
HORSEPOWER VOLTS
MAX.
LOAD
AMP
BRANCH
FUSE
RATING AMP
DISTANCE IN FEET(METERS) FROM MOTOR TO SUPPLY
0-100 (0-30) 101-200 (31-61) 201-300 (62-91) 301-400 (92-122)
AWG WIRE SIZE (MM
2
)
1/2 115/230 8.5/4.2 15/15 14/14 (2/2) 12/14 (3/2) 10/14 (5.5/2) 8/14 (8.4/2)
3/4 115/230 11.0/5.5 20/15 12/14 (3/2) 10/14 (5.5/2) 8/14 (8.4/2) 6/14 (14/2)
1115/230 12.0/6.0 20/15 12/14 (3/2) 10/14 (5.5/2) 8/14 (8.4/2) 6/14 (14/2)
FP4150 AND 2200C SERIES

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P15002 (11-01-22)
ELECTRICAL
WIRING CHART – RECOMMENDED WIRE AND FUSE SIZES
HORSEPOWER VOLTS
MAX.
LOAD
AMP
BRANCH
FUSE
RATING
AMP
DISTANCE IN FEET(METERS) FROM MOTOR TO SUPPLY
0-100
(0-30)
101-200
(31-61)
201-300
(62-91)
301-400
(92-122)
AWG WIRE SIZE (MM
2
)
3/4 115/230 14.8/7.4 20/15 12/14 (3/2) 8/14 (8.4/2) 6/14 (14/2) 6/12 (14/3)
1115/230 19.2/9.6 25/15 10/14 (5.5/2) 8/14 (8.4/2) 6/12 (14/3) 4/10 (21/5.5)
FP4800 AND 4800S SERIES
HORSEPOWER VOLTS
MAX.
LOAD
AMP
BRANCH
FUSE
RATING
AMP
DISTANCE IN FEET(METERS) FROM MOTOR TO SUPPLY
0-100
(0-30)
101-200
(31-61)
201-300
(62-91)
301-400
(92-122)
AWG WIRE SIZE (MM
2
)
1/2 115 7.2 15 14 (2) 12 (3) 10 (5.5) 8 (8.4)
3/4 115 8.6 15 14 (2) 10 (5.5) 8 (8.4) 6 (14)
1115 10.5 15 14 (2) 10 (5.5) 10 (5.5) 6 (14)
FP4105, 2800, 2802, 2803 SERIES

10 P15002 (11-01-22)
START THE PUMP
PREPARING TO START THE PUMP
NEVER RUN PUMP DRY. Running pump without
water may cause pump to overheat, damaging seal and possibly
causing burns to persons handling pump. Fill pump with water
before starting.
NEVER RUN PUMP AGAINST CLOSED DISCHARGE. To
do so can boil water inside pump, causing hazardous pressure in
unit, risk of explosion and possibly scalding persons
handling pump.
1. Remove the priming plug from the priming tee and fill the
pump. Fill all piping between the pump and the well and
make sure that all piping in the well is full. If you have also
installed a priming tee in the suction piping, remove the
plug from the tee and fill the suction piping.
2. Replace all fill plugs.
3. Power on. Start the pump. If you don’t have water after 2 or
3 minutes, stop the pump and remove the fill plugs.
Refill the pump and piping. You may have to repeat this
several times in order to get all the trapped air out of the
piping. A pump lifting water 25’ may take as long as 15
minutes to prime.
4. After the pump has built up pressure in the system and
shut off, check the pressure switch operation by opening
a faucet or two and running enough water out to bleed off
pressure until the pump starts. The pump should start
when pressure drops to 30 PSI and stop when pressure
reaches 50 PSI.
5. Run the pump through one or two complete cycles to verify
correct operation. This will also help clean the system of
dirt and scale dislodged during installation.
WINTERIZING THE PUMP
To prepare the pump for freezing temperatures:
1. Shut off power to the pump.
2. Relieve system pressure. Open a faucet and let it drain until
water stops flowing.
3. Drain the pump. Your pump may have a separate drain plug.
Remove this plug and let it drain.
Your pump may only have a plug or connection on the side of
the pump. Remove this and let the pump drain. Some water
will remain in the pump. A small amount of water left in the
pump will not harm it if it freezes.
Figure 10: Priming The Pump