CHALLENGER®
CENTRIFUGAL PUMP
INSTALLATION AND
USER’S GUIDE
IMPORTANT SAFETY INSTRUCTIONS
READ AND FOLLOW ALL INSTRUCTIONS
SAVE THESE INSTRUCTIONS
i
CUSTOMER SERVICE / TECHNICAL SUPPORT
If you have questions about ordering Pentair Aquatic Systems replacement parts, and pool products, please contact:
Customer Service and Technical Support, USA
(8 A.M. to 7:30 P.M. — Eastern Time)
Phone: (800) 831-7133
Fax: (800) 284-4151
Web site
Visit www.pentairpool.com or www.staritepool.com*
TABLE OF CONTENTS
Important Pump Warning and
Safety Instructions ............................................... ii
Introduction .......................................................... 1
Pump Overview
Pump Strainer Basket
1
1
Installation ............................................................ 2
Location
Piping, Fittings and Valves
Wiring Installation
Grounding
Bonding
2
2
2
3
3
Operating the Pump ............................................. 4
Initial Start-Up
4
Maintenance ......................................................... 5
Cleaning the Strainer Basket
Winterizing
Electric Motor Care
Servicing ............................................................. 7
Pump Disassembly
The Shaft Seal
Pump Reassembly
7
8
8
Restart Instructions ........................................... 9
Priming the Pump
9
Troubleshooting ................................................. 10
Replacement Parts ............................................. 12
Illustrated Parts View
High Pressure Pump Parts List
High Flow Pump Parts List
12
12
13
Technical Data .................................................... 14
Dimensional Drawings
Pump Performance Curves
14
15
5
6
6
* Translated versions of this manual are available online at / La versión en español de este manual del producto, se puede encontrar en línea a
/ Versiones en francés de este manual está disponible en línea en: http://www.pentairpool.com/products/pumps-inground-challenger-highpressure-pumps-24.html.
P/N 355031 Rev. F 4/29/16
CHALLENGER® Centrifugal Pump Installation and User’s Guide
ii
IMPORTANT PUMP WARNING AND SAFETY INSTRUCTIONS
IMPORTANT NOTICE
This guide provides installation and operation instructions for this pump.
Consult Pentair with any questions regarding this equipment.
Attention Installer: This guide contains important information about the
installation, operation and safe use of this product. This information should
be given to the owner and/or operator of this equipment after installation
or left on or near the pump.
Attention User: This manual contains important information that will help
you in operating and maintaining this product. Please retain it for future
reference.
READ AND FOLLOW ALL INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This is the safety alert symbol. When you see this
symbol on your system 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 can cause death,
serious personal injury, or major property damage
if ignored.
Warns about hazards that may cause death,
serious personal injury, or major property damage
if ignored.
Warns about hazards that may or can cause minor
personal injury or property damage
if ignored.
NOTE
Indicates special instructions not related to hazards.
When installing and using this electrical equipment, basic safety
precautions should always be followed, include the following:
Do not permit children to use this product.
RISK OF ELECTRICAL SHOCK. Connect only to
a branch circuit protected by a ground-fault circuitinterrupter (GFCI). Contact a qualified electrician if you cannot verify that
the circuit is protected by a GFCI.
This unit must be connected only to a supply circuit
that is protected by a ground-fault circuit-interrupter
(GFCI). Such a GFCI should be provided by the installer and should
be tested on a routine basis. To test the GFCI, push the test button.
The GFCI should interrupt power. Push the reset button. Power should
be restored. If the GFCI fails to operate in this manner, the GFCI is
defective. If the GFCI interrupts power to the pump without the test button
being pushed, a ground current is flowing, indicating the possibility of an
electric shock. Do not use this pump. Disconnect the pump and have the
problem corrected by a qualified service representative before using.
This pump is for use with permanent swimming
pools and may also be used with hot tubs and spas if
so marked. Do not use with storable pools. A permanently-installed pool
is constructed in or on the ground or in a building such that it cannot be
readily disassembled for storage. A storable pool is constructed so that
it is capable of being readily disassembled for storage and reassembled
to its original integrity.
F
Carefully read and follow all safety instructions in this manual and on
equipment. Keep safety labels in good condition; replace if missing
or damaged.
General Warnings
• Never open the inside of the drive motor enclosure. There is a
capacitor bank that holds a 230 VAC charge even when there is no
power to the unit.
• The pump is not submersible.
• The pump is capable of high flow rates; use caution when installing
and programming to limit pumps performance potential with old or
questionable equipment.
• Code requirements for electrical connection differ from country to
country, state to state, as well as local municipalities. Install equipment
in accordance with the National Electrical Code and all applicable
local codes and ordinances.
• Before servicing the pump; switch OFF power to the pump by
disconnecting the main circuit to the pump.
• This appliance is not intended for use by persons (including children) of
reduced physical, sensory or mental capabilities, or lack of experience
and knowledge, unless they have been given supervision or instruction
concerning the use of the appliance by a person responsible for their
safety.
FAILURE TO FOLLOW ALL INSTRUCTIONS AND
WARNINGS CAN RESULT IN SERIOUS BODILY
INJURY OR DEATH. THIS PUMP SHOULD BE INSTALLED AND
SERVICED ONLY BY A QUALIFIED POOL SERVICE PROFESSIONAL.
INSTALLERS, POOL OPERATORS AND OWNERS MUST READ THESE
WARNINGS AND ALL INSTRUCTIONS IN THE OWNER’S MANUAL
BEFORE USING THIS PUMP. THESE WARNINGS AND THE OWNER’S
MANUAL MUST BE LEFT WITH THE POOL OWNER.
SUCTION ENTRAPMENT HAZARD: STAY OFF
THE MAIN DRAIN AND AWAY FROM ALL SUCTION
OUTLETS!
THIS PUMP PRODUCES HIGH LEVELS OF SUCTION AND CREATES
A STRONG VACUUM AT THE MAIN DRAIN AT THE BOTTOM OF THE
BODY OF WATER. THIS SUCTION IS SO STRONG THAT IT CAN TRAP
ADULTS OR CHILDREN UNDER WATER IF THEY COME IN CLOSE
PROXIMITY TO A DRAIN OR A LOOSE OR BROKEN DRAIN COVER
OR GRATE.
THE USE OF UNAPPROVED COVERS OR ALLOWING USE OF
THE POOL OR SPA WHEN COVERS ARE MISSING, CRACKED OR
BROKEN CAN RESULT IN BODY OR LIMB ENTRAPMENT, HAIR
ENTANGLEMENT, BODY ENTRAPMENT, EVISCERATION AND/OR
DEATH.
The suction at a drain or outlet can cause:
Limb Entrapment: When a limb is sucked or inserted into an opening
resulting in a mechanical bind or swelling. This hazard is present when
a drain cover is missing, broken, loose, cracked or not properly secured.
Hair Entanglement: When the hair tangles or knots in the drain cover,
trapping the swimmer underwater. This hazard is present when the flow
rating of the cover is too small for the pump or pumps.
Body Entrapment: When a portion of the body is held against the drain
cover trapping the swimmer underwater. This hazard is present when the
drain cover is missing, broken or the cover flow rating is not high enough
for the pump or pumps.
Evisceration/Disembowelment: When a person sits on an open pool
(particularly a child wading pool) or spa outlet and suction is applied directly
to the intestines, causing severe intestinal damage. This hazard is present
when the drain cover is missing, loose, cracked, or not properly secured.
CHALLENGER® Centrifugal Pump Installation and User’s Guide
iii
IMPORTANT PUMP WARNING AND SAFETY INSTRUCTIONS
Mechanical Entrapment: When jewelry, swimsuit, hair decorations,
finger, toe or knuckle is caught in an opening of an outlet or drain cover.
This hazard is present when the drain cover is missing, broken, loose,
cracked, or not properly secured.
NOTE: ALL SUCTION PLUMBING MUST BE INSTALLED IN
ACCORDANCE WITH THE LATEST NATIONAL AND LOCAL CODES,
STANDARDS AND GUIDELINES.
TO MINIMIZE THE RISK OF INJURY DUE TO
SUCTION ENTRAPMENT HAZARD:
• A properly installed and secured ANSI/ASME A112.19.8 approved
anti-entrapment suction cover must be used for each drain.
• Each suction cover must be installed at least three (3’) feet apart,
as measured from the nearest point to nearest point.
• Regularly inspect all covers for cracks, damage and advanced
weathering.
• If a cover becomes loose, cracked, damaged, broken or is missing,
replace with an appropriate certified cover.
• Replace drain covers as necessary. Drain covers deteriorate over
time due to exposure to sunlight and weather.
• Avoid getting hair, limbs or body in close proximity to any suction
cover, pool drain or outlet.
• Disable suction outlets or reconfigure into return inlets.
A clearly labeled emergency shut-off switch for the
pump must be in an easily accessible, obvious place.
Make sure users know where it is and how to use it in case of emergency.
The Virginia Graeme Baker (VGB) Pool and Spa Safety Act creates
new requirements for owners and operators of commercial swimming
pools and spas.
Commercial pools or spas constructed on or after December 19, 2008,
shall utilize:
(A) A multiple main drain system without isolation capability with suction
outlet covers that meet ASME/ANSI A112.19.8a Suction Fittings for
Use in Swimming Pools, Wading Pools, Spas, and Hot Tubs and either:
(i) A safety vacuum release system (SVRS) meeting ASME/ANSI
A112.19.17 Manufactured Safety Vacuum Release systems (SVRS)
for Residential and Commercial Swimming Pool, Spa, Hot Tub,
and Wading Pool Suction Systems and/or ASTM F2387 Standard
Specification for Manufactured Safety Vacuum Release Systems
(SVRS) for Swimming pools, Spas and Hot Tubs or
(ii) A properly designed and tested suction-limiting vent system or
(iii) An automatic pump shut-off system.
Commercial pools and spas constructed prior to December 19, 2008,
with a single submerged suction outlet shall use a suction outlet cover
that meets ASME/ANSI A112.19.8a and either:
(A) A SVRS meeting ASME/ANSI A112.19.17 and/or ASTM F2387, or
(B) A properly designed and tested suction-limiting vent system, or
(C) An automatic pump shut-off system, or
(D) Disabled submerged outlets, or
(E) Suction outlets shall be reconfigured into return inlets.
For Installation of Electrical Controls at Equipment Pad (ON/OFF
Switches, Timers and Automation Load Center)
Install all electrical controls at equipment pad, such as
on/off switches, timers, and control systems, etc. to
allow the operation (startup, shut-down, or servicing)
of any pump or filter so the user does not place any
portion of his/her body over or near the pump strainer
lid, filter lid or valve closures. This installation should
allow the user enough space to stand clear of the
filter and pump during system start-up, shut down or
servicing of the system filter.
CHALLENGER Centrifugal Pump Installation and User’s Guide
®
HAZARDOUS PRESSURE: STAND CLEAR OF
PUMP AND FILTER DURING START UP
Circulation systems operate under high pressure.
When any part of the circulating system (i.e.
locking ring, pump, filter, valves, etc.) is serviced,
air can enter the system and become pressurized.
Pressurized air can cause the pump housing cover, filter lid, and valves
to violently separate which can result in severe personal injury or death.
Filter tank lid and strainer cover must be properly secured to prevent
violent separation. Stand clear of all circulation system equipment when
turning on or starting up pump.
Before servicing equipment, make note of the filter pressure. Be sure
that all controls are set to ensure the system cannot inadvertently start
during service. Turn off all power to the pump. IMPORTANT: Place filter
manual air relief valve in the open position and wait for all pressure
in the system to be relieved.
Before starting the system, fully open the manual air relief valve and place
all system valves in the “open” position to allow water to flow freely from the
tank and back to the tank. Stand clear of all equipment and start the pump.
IMPORTANT: Do not close filter manual air relief valve until all
pressure has been discharged from the valve and a steady stream
of water appears. Observe filter pressure gauge and be sure it is not
higher than the pre-service condition.
General Installation Information
• All work must be performed by a qualified service professional, and
must conform to all national, state, and local codes.
• Install to provide drainage of compartment for electrical components.
• These instructions contain information for a variety of pump models
and therefore some instructions may not apply to a specific model. All
models are intended for use in swimming pool applications. The pump
will function correctly only if it is properly sized to the specific application
and properly installed.
Pumps improperly sized or installed or used in
applications other than for which the pump was
intended can result in severe personal injury or death. These risks may
include but not be limited to electric shock, fire, flooding, suction
entrapment or severe injury or property damage caused by a structural
failure of the pump or other system component.
The pump can produce high levels of suction within
the suction side of the plumbing system. These high
levels of suction can pose a risk if a person comes within the close
proximity of the suction openings. A person can be seriously injured by
this high level of vacuum or may become trapped and drown. It is
absolutely critical that the suction plumbing be installed in accordance
with the latest national and local codes for swimming pools.
Warnings and safety instructions for Pentair Aquatic Systems
pumps and other related products are available at:
http://www.pentairpool.com/pool-owner/safety-warnings/ or call
(800) 831-7133 for additional free copies of these instructions.
Please refer to http://www.pentairpool.com/pool-owner/
safety-warnings/ for warning and safety instructions related to the
this product.
SAVE THESE INSTRUCTIONS
Warning Page P/N 352557 Rev. A 6/15
1
INTRODUCTION
Pump Overview
The Challenger® Centrifugal Pump is designed to operate for years with proper maintenance. The pump housing,
seal plate, diffuser, hair and lint pot and impeller are made from high quality thermoplastic materials. These
materials have been selected for their corrosion-resistant nature. When installed, operated and maintained in
accordance with these instructions, your pump will provide years of service.
Strainer Basket
Challenger Centrifugal Pump
Your centrifugal pump is driven by an electric motor. The motor is directly attached to the pump impeller. As the
electric motor turns, it causes the impeller to turn and this causes the water to flow. The water flows into the hair
and lint pot inlet and through the basket assembly to pre-strain large particles. The flow then enters the center of
the pump housing. If the pump does not contain the hair and lint pot assembly, the flow simply enters the center of
the pump housing. The flow goes through the impeller and out the pump discharge port.
Two Speed Pump Models
The performance of this pump will be the same at high speed as the same model single speed pump, both
hydraulically and prime wise. At low speed, the pump will produce one half the flow and 1/4 the pressure of high
speed. However, the pressure required by the filter and pool plumbing at half flow will also be greatly reduced
due to much lower system friction. These lower friction losses result in great energy savings. At one half flow (low
speed) the electrical energy savings are 60% for equal amounts of circulated water.
Turn motor to low speed for quiet operation and electrical cost savings. Since the pump should be operated
mostly at low speed for cost saving, minor adjustments may be required in the automatic chlorine dispenser, the
skimmers and the heater due to the lower flow. (See the equipment manufacturer’s operation manuals.)
Pool owners should use high speed for vacuuming the pool, quick filtering action, priming the system, and to keep
up with heavy bathing loads.
Spa and Tub owners will want to use high speed for good jet action.
Pump Strainer Basket
The strainer basket, sometimes referred to as the ‘Hair and Lint Pot’, is located in front of the pump housing. Inside
the chamber is the basket which must be kept clean of leaves and debris at all times.
Regardless of the length of time between filter cleaning, it is important to visually inspect the hair and lint pot basket
at least once a week. A dirty basket will reduce the efficiency of the filter and heater and also put an abnormal stress
on the pump motor.
CHALLENGER® Centrifugal Pump Installation and User’s Guide
2
INSTALLATION
Location
Be sure the Challenger® Centrifugal Pump location meets the following requirements:
Note: Do not install this pump within an outer enclosure or beneath the skirt of a hot tub or spa unless marked
accordingly.
1. Install the pump as close to the pool or spa as
possible. To reduce friction loss and improve
efficiency use short, direct suction piping returns.
12 IN. (30.5 CM)
MIN. VERTICAL
CLEARANCE
5x SUCTION PIPE
DIAMETER
2. Install a minimum of 5 feet (1.5 meters) from the
inside wall of the pool or spa. Canadian installations
require a minimum of 9.8 feet (3 meters) from pool
water.
3. Install the pump a minimum of 3 feet (0.9 meters)
from the heater outlet.
Figure 1
3 IN.
(7.6 CM)
MINIMUM
REAR CLEARANCE
ELBOW
4. Do not install the pump more than 10 feet (3 m) above
the water level.
5. Install the pump in a well ventilated location protected from excessive moisture (i.e., rain gutter downspouts,
sprinklers, etc.).
6. Install the pump with a rear clearance of at least 3 inches (7.6 cm) so that the motor can be removed easily for
maintenance and repair. A vertical clearance of 12 inches (30.5 cm) is required for strainer basket removal. See
Figure 1.
Piping, Fittings and Valves
1. Use thread seal tape or pipe sealants on all male connections of pipes and fittings. Use only pipe sealant
compounds suited for plastic pipe. DO NOT USE PETROLEUM BASED PRODUCTS.
2. Support pipe to prevent strains on the systems filter, pump and valves.
3. When connecting fitting to the pump, apply a pipe sealant to the threads and then hand tighten plus 1½ turns. DO
NOT OVERTIGHTEN.
4. Long piping runs and elbows restrict flow. For best efficiency, use the fewest possible fittings, large diameter pipe
(at least 1.5 inches) and locate equipment as close to the pool as possible. The pump suctions line should not be
smaller than the pipe size on the inlet of the pump.
5. Suction fittings must conform to ASME/ANSI A 112.19.8 M Standards. Use double suction fittings.
6. For most installations Pentair recommends installing a valve on both the pump suction and return lines so that
the pump can be isolated during routine maintenance. We also recommend a valve, elbow or tee installed in the
suction line should be no closer to the front of he pump than five (5) times the suction line pipe diameter. See
Figure 1.
Example: A 1.5 inch pipe requires a 7.5 inch (19 cm) straight run in front of the suction inlet of the pump. This will
help the pump prime faster and last longer.
Note: DO NOT install 90° elbows directly into the pump inlet and outlet.
Wiring Installation
RISK OF ELECTRICAL SHOCK OR ELECTROCUTION.
This pool pump must be installed by a licensed or certified electrician or a qualified pool serviceman in
accordance with the all National Electrical Code and all applicable local codes and ordinances. Improper
installation will create an electrical hazard which could result in death or serious injury to pool users, installers,
or others due to electrical shock, and may also cause damage to property.
Always disconnect power to the pool pump at the circuit breaker before servicing the pump. Failure to do so
could result in death or serious injury to serviceman, pool users or others due to electric shock.
1. Make sure all electrical breakers and switches are turned off before wiring motor.
2. Make sure that the wiring voltage matches the motor voltage. If they do not match permanent damage to the
motor will occur.
CHALLENGER® Centrifugal Pump Installation and User’s Guide
3
Wiring Installation, (continued)
3. For wiring sizes and general guidelines for proper electrical installation, please follow the specifications
defined in the National Electric Code and any local codes as required.
4. Make sure all electrical connections are clean and tight.
5. Cut wires to the appropriate length so they don’t overlap or touch when connected to the terminal board.
Never work on pump while it is running or power is still connected; hazardous voltage can cause severe
or fatal injury. A suitable ground fault interrupter should always be installed at the power supply source of
the unit.
Ground motor before connecting to electrical power supply. Failure to ground motor can cause severe or
fatal electrical shock hazard. Do not ground to a gas supply line.
6. The Challenger® Centrifugal Pump motor must be wired for the proper voltage in accordance with the
wiring diagram supplied with the motor.
Wiring the motor with the incorrect supply voltage will cause damage to the motor and void the
warranty.
7. The wiring to the motor should be kept as short as possible and large enough NOT to cause an
excessive voltage drop.
8. Install, ground and bond wire according to local or National Electrical Code requirements.
9. Bond the motor to the pool structure in accordance with the National Electrical Code. Use a solid No. 8 AWG
or larger copper conductor (No. 6 AWG for Canadian installations). Run a wire from the external bonding
screw on the motor to the pool bonding structure.
Grounding
Permanently ground motor. Use green terminal provided under motor canopy or access plate; use size and type
wire required by code. Connect motor ground terminal to electrical service ground. On cord connected circuits,
check for proper grounding.
Bonding
The National Electrical Code Article 680-22 requires that the motor be electrically bonded to appropriate
permanently installed pool or spa/hot tub structure by a solid copper conductor no smaller than No. 8 AWG (no
smaller than No. 6 AWG for Canadian installations). Bonding wire should be connected from the accessible wire
connector on the motor shell to all metal parts of the swimming pool spa or hot tub structure and to all electrical
equipment, metal conduit and metal piping within five (5) feet of the inside walls of a swimming pool spa or hot tub.
A grounding lug is provided on the exterior of the motor shell for this purpose.
FOR CORD AND PLUG-CONNECTED UNITS
Do not bury cord. Locate cord to minimize abuse from lawn mowers, hedge trimmers, and other
equipment.
To reduce the risk or electric shock, replace damaged cord immediately.
To reduce the risk of electric shock, do not use extension cord to connect unit to electric supply; provide
a properly located outlet.
RISK OF ELECTRIC SHOCK. Connect only to a grounding type receptacle protected by a ground-fault
circuit-interruptor (GFCI). Contact a qualified electrician if you cannot verify that the receptacle is
protected by a GFCI.
This pump is for use with permanently installed pools and may also be used with hot tubs and spas. Do
not use with storable pools unless pump is protected by a factory installed double insulated enclosure.
A permanently installed pool is constructed in or on the ground or in a building such that it cannot be
readily disassembled for storage. A storable pool is constructed so that it may be readily disassembled
for storage and reassembled to its original integrity and has a maximum dimension of 18 feet and a
maximum wall height of 42 inches.
Do not install within an outer enclosure or beneath the skirt of a hot tub or spa unless so marked.
CHALLENGER® Centrifugal Pump Installation and User’s Guide
4
OPERATING THE PUMP
Initial Start-Up
1. Relieve all system pressure and open all air bleeders on entire hydraulic system prior to starting the
Challenger® Centrifugal Pump. See filter owner’s manual.
2. Ensure that all fittings, clamps, closures and couplings are tight and in accordance with equipment
manufacturer’s recommendations.
3. Open suction and discharge valve to allow free flow of water. On flooded suction pumps with strainer
pot, the water source is higher than the pump. The water will flow into the pump strainer pot and the
pot will fill with water. On pumps without strainer pot, the water will fill the pump housing.
4. On non-flooded suction systems, the pump lid will have to be removed by rotating the lid counterclockwise and lifting.
5. The pump strainer pot should be filled with water up to suction/inlet port on the pump.
6. It is good practice to lubricate the lid o-ring with silicone lubricant each time the lid is removed. The
o-ring should be cleaned and inspected every time the strainer pot is opened.
7. The lid should be replaced by pressing the lid down and twisting the lid clockwise.
8. The pump is now ready to prime. Energize the motor and the pump will prime. The time to prime will
depend on the suction lift and the distance and size of suction piping. Turn off power if the pump does
not prime within thirty (30) minutes and refer to “Troubleshooting” on page 11.
DO NOT run the pump dry. If the pump is run dry, the mechanical seal will be damaged and the pump will
start leaking. If this occurs, the damaged seal must be replaced. ALWAYS maintain proper water level in
your pool (half way up skimmer opening). If the water level falls below the skimmer opening, the pump will draw air through
the skimmer, losing the prime and causing the pump to run dry, resulting in a damaged seal. Continued operation in this
matter could cause a loss of pressure, resulting in damage to the pump case, impeller, and seal and may cause property
damage and personal injury.
CHALLENGER® Centrifugal Pump Installation and User’s Guide
5
MAINTENANCE
This section describes how to maintain the Challenger® Centrifugal Pump.
Cleaning the Pump Strainer Basket
The strainer basket in the pump should be visually inspected at least once a week. Remove the clear lid and
the basket and clean debris from basket. Inspect the lid o-ring; if damaged replace. The pump seal requires no
lubrication.
DO NOT open the strainer pot if pump fails to prime or if pump has been operating without water in the
strainer pot. Pumps operated in these circumstances may experience a build up of vapor pressure and
may contain scalding hot water. Opening the pump may cause serious personal injury. In order to avoid
the possibility of personal injury, make sure the suction and discharge valves are open and strainer pot
temperature is cool to touch, then open with extreme caution.
To prevent damage to the pump and filter and for proper operation of the system, clean pump strainer
and skimmer baskets regularly.
1. Turn off the pump at the breaker.
2. Close the inlet and discharge valves.
3. Relieve pressure in the system.
Strainer
Lid
4. Turn the strainer lid in a counter-clockwise direction to remove the
lid and remove the basket from the pump.
O-Ring
5. Remove the debris from the strainer basket and rinse out the basket.
Replace the basket if it is cracked.
6. Replace the basket.
7. Fill the pump strainer pot and volute up to the suction/inlet port with
water.
8. Clean the lid, O-ring, and sealing surface of the strainer pot.
Note: It is important that the O-Ring be kept clean and well lubricated.
Strainer
Basket
Strainer
Pot
9. Reinstall the lid by placing the lid back onto the strainer pot and
turning the lid clockwise.
Note: Be sure the lid O-ring is properly placed around the entire
sealing surface of the strainer pot.
Drain Plug
10. Open the inlet and discharge valves.
Figure 2
11. Turn the power “ON” at the circuit breaker.
THIS SYSTEM OPERATES UNDER HIGH PRESSURE.
When any part of the circulating system (e.g., Lock
Ring, Pump, Filter, Valves, etc.) is serviced, air can
enter the system and become pressurized. Pressurized
air can cause the lid to separate off which can result in
serious injury, death, or property damage. To avoid this
potential hazard, follow these instructions.
12. Open the manual air relief valve on top of the filter.
13. Stand clear of the filter. Start the pump.
14. Bleed air from the filter until a steady stream of water comes out. Close the manual air relief valve.
CHALLENGER® Centrifugal Pump Installation and User’s Guide
6
Winterizing
You are responsible for determining when freezing conditions may occur. If freezing conditions are expected, take
the following steps to reduce the risk of freeze damage. Freeze damage is not covered under warranty.
In mild climates, when temporary freezing conditions may occur, run your filtering equipment all night to prevent
freezing.
To prevent freeze damage, follow the procedures below:
1. Shut off electrical power for the pump at the circuit breaker.
2. Drain the water out of the pump housing by removing the two thumb-twist drain plugs from the housing. Store
the plugs in the pump basket.
3. Cover the motor to protect it from severe rain, snow and ice.
Note: DO NOT wrap the motor with plastic or other air tight materials during winter storage. The motor may be
covered during a storm, winter storage, etc., but never when operating or expecting operation.
Electric Motor Care
Protect from heat
1. Shade the motor from the sun.
2. Any enclosure must be well ventilated to prevent overheating.
3. Provide ample cross ventilation.
Protect against dirt
1.
2.
3.
4.
5.
Protect from any foreign matter.
Do not store (or spill) chemicals on or near the motor.
Avoid sweeping or stirring up dust near the motor while it is operating.
If a motor has been damaged by dirt it may void the motor warranty.
Clean the lid and clamp, O-ring, and sealing surface of the pump pot.
Protect against moisture
1. Protect from continuous splashing or continuous sprayed water.
2. Protect from extreme weather such as flooding.
3. If motor internals have become wet - let it dry before operating. Do not allow the pump to operate if it has been flooded.
4. If a motor has been damaged by water it may void the motor warranty.
Note:
• DO NOT wrap motor with plastic or other air tight materials. The motor may be covered during a storm, for winter storage, etc., but never when operating, or expecting operation.
• When replacing the motor, be certain that the motor support is correctly positioned to support the size of motor being installed.
CHALLENGER® Centrifugal Pump Installation and User’s Guide
7
SERVICING
This section describes how to service the Challenger® Centrifugal Pump.
RISK OF ELECTRICAL AND ELECTROCUTION
This pool pump must be installed by a licensed or certified electrician or a qualified pool
serviceman in accordance with the National Electrical Code and all applicable local codes
and ordinances. Improper installation will create an electrical hazard which could result in
death or serious injury to pool users, installers, or others due to electrical shock, and may
also cause damage to property.
Always disconnect power to the pool pump at the circuit breaker before servicing
the pump. Failure to do so could result in death or serious injury to serviceman, pool
users or others due to electric shock.
Read all servicing instructions before working on the pump.
DO NOT open the strainer pot if pump fails to prime or if pump has been operating without
water in the strainer pot. Pumps operated in these circumstances may experience a build
up of vapor pressure and may contain scalding hot water. Opening the pump may cause
serious personal injury. In order to avoid the possibility of personal injury, make sure the
suction and discharge valves are open and strainer pot temperature is cool to touch, then
open with extreme caution.
Be sure not to scratch or mar the polished shaft seal faces; seal will leak if faces are damaged.
Pump Disassembly
All moving parts are located in the rear sub-assembly of this pump. Refer to Figure 4 on page 9 for an illustrated
parts view.
Tools required:
• Adjustable wrench.
• 1/4 inch flat-blade screwdriver.
• 9/16 inch open end wrench.
• Rubber Mallet
To remove and repair the motor sub-assembly perform the following procedures:
1. Turn off the pump circuit breaker at the main panel. Close suction and discharge valves to relieve system
pressure.
2. Drain the pump by removing the drain plugs. The drain plugs can be removed by hand. No tools are needed.
3. Loosen the band clamp by turning the band clamp knob counter-clockwise. The band clamp holds the rearsubassembly to the housing (strainer pot/volute).
4. Remove the rear sub-assembly from the housing (strainer pot/volute) and place the band clamp to the side.
Note: If the band clamp does not separate from the pump housing and seal plate when loose, lightly tap the
top of the band clamp with a rubber mallet. This will free the clamp from the housing.
5. Place the rear sub-assembly upright and on a flat surface. Use a 1/4 inch flat blade screwdriver to remove
the three (3) holding screws located on the diffuser.
6. Remove the diffuser and diffuser spacer from the rear sub-assembly.
7. Use the 1/4 inch flat blade screwdriver to remove the impeller screw located in the center of the pump’s impeller.
Note: The impeller screw is a left-handed thread and loosens in a clockwise direction.
CHALLENGER® Centrifugal Pump Installation and User’s Guide
8
Pump Disassembly (continued)
8. Use the 1/4 inch flat blade screwdriver to hold the motor shaft in place. The motor shaft is accessible through
the back of the motor.
Note: If the torque is too high to hold the screwdriver by hand then an adjustable wrench may be used to hold
the screwdriver shaft in place. Use locking pliers instead if your screwdriver has a round shaft.
9. Unscrew the impeller from the motor shaft by twisting the impeller counter-clockwise.
10. Remove the rotating portion of the spring seal by hand.
Note: When placing the rotating seal to the side, ALWAYS place flat side down. The portion of the rotating spring
seal that contacts the white ceramic seal must be kept as free from contaminants (dust, dirt, debris, etc.) as
possible.
11. Use the 9/16 inch wrench to remove the four (4) bolts that hold the motor to the seal plate.
The Shaft Seal
The mechanical seal can be changed without disconnecting piping by removing the band clamp and pulling the
motor with pump bracket diffuser and impeller assembly away from front pump housing body.
The Shaft Seal consists primarily of two parts, a rotating spring seal and a ceramic seal. See Figure 3.
The Challenger® Centrifugal Pump requires little or no service other than reasonable care, however, a Shaft Seal
may occasionally become damaged and must be replaced.
The polished and lapped faces of the seal could be easily damaged if not handled with care.
In mild climate area, when temporary freezing conditions may occur, run your filtering equipment
all night to prevent freezing.
To replace the pump seal:
12. Follow steps 1-11 in the “Pump Disassembly” section.
13. Place the seal plate face down on a flat surface and tap out the old ceramic seal.
14. Press the new ceramic seal into the seal plate with your thumbs and wipe off the white ceramic with a clean
cloth.
15. Using a 9/16 inch wrench, remount the seal plate to the motor via the four (4) bolts that hold the motor to
the seal plate.
16. Grease the motor shaft thread and continue with steps 2-10 from the “Pump Reassembly” section to
reassemble the pump.
Spring Seal
Ceramic Seal
Figure 3
CHALLENGER® Centrifugal Pump Installation and User’s Guide
9
Pump Reassembly
1. Use the 9/16 inch wrench to remount the seal plate to the motor via the four (4) bolts that hold the motor to
the seal plate.
2. Reseat the spring seal on the white ceramic seal. Ensure that the carbon face of the spring seal contacts the
ceramic face of the stationary seat.
3. Grease the motor shaft thread and screw the impeller onto the motor shaft.
Note: Use the 1/4 inch flat blade screwdriver to hold the motor shaft in place when screwing down the impeller.
The motor shaft is accessible through the back of the motor.
4. Using a 1/4 inch flat blade screwdriver, screw in the impeller lock screw.
Note: The impeller screw is a left-handed thread and tightens in a counter-clockwise direction.
5. Remount the diffuser spacer and diffuser using a 1/4 inch flat blade screwdriver and the three (3) diffuser screws.
6. Reseat the pump housing (strainer pot/volute) onto the rear sub-assembly.
7. Place the band clamp around the pump housing an rear sub-assembly. Tighten with the band clamp knob.
Note: The band clamp knob should be parallel to the floor of the equipment pad when the clamp is installed
properly.
8. Reinstall the drain plugs. Hand tighten only!
9. Fill the pump strainer pot with water.
10. Refer to page 4 “Initial Start-Up” procedures to restart the pump.
Rear
Sub-Assembly
Pump Housing
Motor
Motor-to-Seal
Plate Screws
(4x)
Band
Clamp Knob
Impeller
Screw
Diffuser
Seal
Impeller
Diffuser
Spacer
Seal
Plate
Diffuser Holidng
Screws (3x)
Band
Clamp
Drain Plugs
(2x)
Figure 4
CHALLENGER® Centrifugal Pump Installation and User’s Guide
10
RESTART INSTRUCTIONS
If the Challenger® Centrifugal Pump is installed below the water level of the pool, close return and suction
lines prior to opening hair and lint pot on pump. Make sure to reopen valves prior to operating.
DO NOT run the pump dry. If the pump is run dry, the mechanical seal will be damaged and the pump will
start leaking. If this occurs, the damaged seal must be replaced. ALWAYS maintain proper water level in
your pool (half way up skimmer opening). If the water level falls below the skimmer opening, the pump will draw air through
the skimmer, losing the prime and causing the pump to run dry, resulting in a damaged seal. Continued operation in this
matter could cause a loss of pressure, resulting in damage to the pump case, impeller, and seal and may cause property
damage and personal injury.
Priming the Pump
The pump strainer pot must be filled with water before the pump is initially started. Follow these steps to prime
the pump:
1. Remove the pump lid.
2. Fill the pump strainer pot with water.
3. Reassemble the pump lid onto the strainer pot. The pump is now ready to prime.
4. Open the air release valve on the filter, and stand clear of the filter.
5. Turn on the switch or time clock.
6. When water comes out of the air release valve, close the valve. The system should now be free of air
and recirculating water to and from the pool.
7. This pump will prime within thirty (30) minutes. Do not allow your pump to run longer than this time
without developing full flow. If the pump does not prime, see “Troubleshooting” on page 11.
8. Two speed pumps should run on high speed for priming.
CHALLENGER® Centrifugal Pump Installation and User’s Guide
11
TROUBLESHOOTING
Use the following troubleshooting information to resolve possible Challenger® Centrifugal Pump problems.
RISK OF ELECTRICAL SHOCK OR ELECTROCUTION.
Improper installation will create an electrical hazard which could result in death or serious
injury to pool users, installers, or others due to electrical shock, and may also cause damage
to property.
1. If you are not familiar with your pool filtering system and/or heater:
a. DO NOT attempt to adjust or service without consulting your dealer, or a qualified pool professional.
b. Read the entire Installation & User’s Guide before attempting to use, service or adjust the pool filtering system or heater.
2. SWITCH OFF power to the pump at the breaker before attempting service or repair.
Problems and Corrective Actions
ProblemCause
Remedy
Pump will not prime 1. No water in strainer pot. Add water to pot.
2. Strainer pot lid is not tight. Tighten lid.
3. Damaged lid o-ring. Replace o-ring.
4. Water level is below skimmer. Adjust pool water level.
5. Strainer basket or skimmer basket is clogged.
Clear basket.
6. Closed valve in piping system.
Check all valves and open all necessary valves.
7. Pump is on low speed (two speed units only).
Adjust to high speed.
8. Air leak in suction line. Find & fix leak.
Low Flow-High Filter Pressure 1. Filter is dirty. Clean filter.
2. Restriction in return line. Open return line restriction.
Low Flow-Low Filter Pressure 1. Strainer basket or skimmer basket is clogged. Clean basket.
2. Clogged impeller. Clean obstruction.
3. Air leak in suction line. Find & fix leak.
4. Restriction in suction line. Find and open restriction.
Motor does not turn 1. Power switch is off. Check power switch & reset.
2. Circuit breaker has tripped. Check circuit breaker & reset, if
re-trips, contact electrician.
3. Pump is in “Off-mode” on a timer controlled circuit. Check timer mode.
4. Motor terminal connections are incorrect. Have terminal connections checked by electrician.
5. Motor shaft is locked by bad bearing. Have motor bearings replaced or replace pump.
6. Impeller is locked by debris. Clean impeller.
Motor Over-Heating 1. Electrical supply connections are incorrect. Have terminal connections checked by electrician.
2. Wiring to pump is undersized. Consult electrician to rewire pump.
3. Power Company supply voltage is low. Notify Power Company.
4. Ventilation is inadequate for motor. Remove any restrictions to air flow.
CHALLENGER® Centrifugal Pump Installation and User’s Guide
12
REPLACEMENT PARTS
Illustrated Parts View
1
6
7
4
9
2
10
18
15
3
5
21
22
8
23
24
13
12
11
17
14
19
20
16
19
20
High Pressure Pump Parts List
Description
Motor Table
Model
Item #
P/N
1
See Motor Table
2
See Impeller/Diffuser Table
Impeller
3
See Impeller/Diffuser Table
Diffuser
4
See Impeller/Diffuser Table
Diffuser Spacer
5
355331
Diffuser O-Ring
6
355004
Seal Plate
7
355329
Seal Plate Square Ring
8
355305
Base
9
354545S
Seal
10
355389
Impeller Screw
11
354629
Band Clamp
12
175025
Band Clamp Knob
13
355334
Diffuser Screw (3x)
14
355330
Front Housing O-Ring
15
U30-74SS
16
354265
Strainer Pot Bolt (4x)
17
355468
Housing
18
359507 / 357391 (3HP)
1/2F, 3/4A, 1/2FE
355147
355148
355384
19
357161
Drain Plug (2x)
3/4F, 1A, 3/4FE
355187
355188
355317
20
192115
Drain Plug O-Ring (2x)
1F, 1-1/2A, 1FE
355369
355188
355317
21
355301
Lid
1-1/2F, 2A, 1-1/2FE
355315
355270
355317
22
350013
Lid O-Ring
23
355318 / 355441 (3HP)
2F, 2-1/2A, 2FE,
2-1/2AE
355604
355545
355317
24
355300
3F, 3FE
355544
355545
355317
Motor
Motor Bolt (4x)
Pot Assembly
Strainer Basket
Strainer Pot
CHALLENGER® Centrifugal Pump Installation and User’s Guide
Motor
Single
Speed
Two Speed
3-Phase
TEFC
1/2F, 3/4A
355019S
—
—
3/4F, 1A
355021S
355375S
—
1F, 1-1/2A
355023S
355376S
—
1-1/2F, 2A
355025S
355377S
—
2F, 2-1/2A
355027S
355378S
—
3F
355034S
—
—
1/2FE, 3/4FE
355009S
—
—
1FE
355011S
—
354806S
1-1/2FE
355013S
—
354808S
2FE, 2-1/2AE
355015S
—
354810S
3FE
355017S
—
354812S
Impeller/Diffuser Table
Impeller
P/N
Motor
Diffuser
P/N
Diffuser
Spacer P/N
HIGH PRESSURE MODELS
13
High Flow Pump Parts List
Item #
P/N
1
See Motor Table
2
See Impeller/Diffuser Table
Description
Motor
Impeller
3
See Impeller/Diffuser Table
Diffuser
4
See Impeller/Diffuser Table
Diffuser Spacer
5
355030
Diffuser O-Ring
6
355004
Seal Plate
7
355329
Seal Plate Square Ring
8
355305
Base
9
354545S
Seal
10
355389
Impeller Screw
11
354629
Band Clamp
12
175025
Band Clamp Knob
13
355334
Diffuser Screw (3x)
14
355330
Front Housing O-Ring
15
U30-74SS
16
354265
Strainer Pot Bolt (4x)
17
355468
Housing
18
359507
Pot Assembly
19
357161
Drain Plug (2x)
20
192115
Drain Plug O-Ring (2x)
21
355301
Lid
22
350013
Lid O-Ring
23
355318
Strainer Basket
24
355300
Strainer Pot
Motor Bolt (4x)
Motor Table
Motor
Motor
P/N
1/2F, 3/4A
355019S
3/4F, 1A
355021S
1F, 1-1/2A
355023S
1-1/2F, 2A
355025S
2F, 2-1/2A
355027S
1FE
355011S
1-1/2FE
355013S
2FE, 2-1/2AE
355015S
Impeller/Diffuser Table
Motor
Impeller
P/N
Diffuser
P/N
Diffuser
Spacer P/N
HIGH FLOW MODELS
1/2F, 3/4A
355043
355029
355028
3/4F, 1A
355067
355029
355028
1F, 1-1/2A, 1FE
355074
355077
355078
1-1/2F, 2A, 1-1/2FE
355086
355077
355078
2F, 2-1/2A, 2FE
355093
355094
355095
CHALLENGER® Centrifugal Pump Installation and User’s Guide
14
TECHNICAL DATA
Dimensional Drawings
A
10.0
16.1
10.1
12.4
7.2
13.8
12.0
14.2
6.0
.5
.4
1.5
2.0
12.0
1.5
.4
CHALLENGER® Centrifugal Pump Installation and User’s Guide
Motor P/N
Dimension “A”
354806S, 354808S
22.3”
354810S
22.7”
354812S
23.4”
355019S, 355021S
24.4”
355375S
24.6”
355023S
24.8”
355009S
25.2”
355376S
25.3”
355011S, 355027S
25.4”
355377S
25.8”
355013S
25.9”
355378S
26.3”
355025S, 355034S,
355015S, 355017S
26.4”
15
Pump Performance Curves
High Flow Pump Performance Curves
110
Total Dynamic Head Feet of Water
100
90
BEST EFFICIENCY SIZING
80
High Flow Curve Key
70
MOTOR
60
A
B
C
D
E
50
40
30
20
C
B
A
D
1/2F and 3/4A
3/4F and 1A
1FE, 1F and 1-1/2A
1-1/2FE, 1-1/2F and 2A
2FE, 2F and 2-1/2A
E
10
0
0
20
40
60
80
100
120
Flow Rate in U.S. Gallons per Minute
140
160
High Pressure Pump Performance Curves
110
Total Dynamic Head in Feet of Water
100
BEST EFFICIENCY SIZING
90
High Pressure Curve Key
80
MOTOR
70
G
H
I
60
50
40
I
30
L
J
J
K
K
H
20
G
L
1/2FE, 1/2F and 3/4A
3/4FE, 3/4F and 1A
1FE, 1F, 1-1/2A and 1FE 3PH
1-1/2FE, 1-1/2F, 2A and
1-1/2FE 3PH
2FE, 2-1/2AE, 2F, 2-1/2A and
2FE 3PH
3FE, 3F and 3FE 3PH
10
0
0
10
20
30
40
50 60 70 80 90 100 110
Flow Rate in U.S. Gallons per Minute
120
130
140
150
160
CHALLENGER® Centrifugal Pump Installation and User’s Guide
1620 HAWKINS AVE., SANFORD, NC 27330 • (919) 566-8000
10951 WEST LOS ANGELES AVE., MOORPARK, CA 93021 • (805) 553-5000
WWW.PENTAIRPOOL.COM
All Pentair trademarks and logos are owned by Pentair or one of its global affiliates. Pentair Aquatic Systems® and Challenger® are registered trademarks
of Pentair Water Pool and Spa, Inc. and/or its affiliated companies in the United States and/ or other countries. Unless expressly noted, names and
brands of third parties that may be used in this document are not used to indicate an affiliation or endorsement between the owners of these names
and brands and Pentair Water Pool and Spa, Inc. Those names and brands may be the trademarks or registered trademarks of those third parties.
Because we are continuously improving our products and services, Pentair reserves the right to change specifications without prior notice. Pentair is
an equal opportunity employer.
© 2016 Pentair Water Pool and Spa, Inc. All rights reserved. This document is subject to change without notice.
*355031*
P/N 355031 REV. F 4/29/16