Page 1
P/N: IS4000
½” p
Rev. A
__________________________________________________________________________________________
OWNER’S MANUAL
INSTALLATION, OPERATION, & PARTS
*50HZ Models are not UL Listed.
NorthStar
The Hayward NorthStar Pump is specifically engineered for the demanding requirements of today’s in-ground swimming pool/spa
that is equipped with large capacity filters, heaters, and pool cleaning equipment. The NorthStar is a self-priming pump that includes
an improved seal and impeller design that will provide many years of efficient, dependable, corrosion-free service. The advanced
design provides superior performance while reducing maintenance requirements. NOTE - To prevent potential injury and to avoid
unnecessary service calls, read this manual carefully and completely.
Required: 2” plumbing minimum
Recommended: 2
TM
Pump Series
lumbing or larger
SAVE THIS INSTRUCTION MANUAL
HAYWARD POOL PRODUCTS
620 DIVISION STREET ELIZABETH, NJ 07207 (908) 351-5400
WWW.HAYWARDPOOL.COM
Page 2
NorthStar™ Pump Series__________________ ____________________________Page 2 of 15
IMPORTANT SAFETY INSTRUCTIONS
Before installing or servicing this electrical equipment, turn power supply OFF.
Basic safety precautions should always be followed, including the following: Failure to follow instructions may result in injury.
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.
WARNING warns about hazards that could cause serious personal injury, death or major property damage and if
ignored presents a potential hazard.
CAUTION warns about hazards that will or can cause minor or moderate personal injury and/or property damage
and if ignored presents a potential hazard. It can also make consumers aware of actions that are unpredictable and unsafe.
The NOTICE label indicates special instructions that are important but not related to hazards.
WARNING – Read and follow all instructions in this
owner’s manual and on the equipment. Failure to follow
instructions can cause severe injury and/or death.
WARNING – This product should be installed and serviced only by a qualified professional.
CAUTION – All electrical wiring MUST be in conformance with all applicable local codes, regulations, and the
National Electric Code (NEC).
ATTENTION INSTALLER – THIS MANUAL CONTAINS IMPORTANT INFORMATION ABOUT THE
INSTALLATION, OPERATION, AND SAFE USE OF THIS PUMP THAT MUST BE FURNISHED TO THE END USER
OF THIS PRODUCT. FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS COULD RESULT IN SERIOUS
INJURY.
WARNING – To reduce risk of injury, do not permit children to use or climb on this product. Closely supervise children
at all times. Components such as the filtration system, pumps, and heaters must be positioned to prevent children from using them as a
means of access to the pool.
CAUTION – This pump is intended for use on permanently installed 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. Though this product is designed for outdoor use, it is strongly
advised to protect the electrical components from the weather. Select a well-drained area, one that will not flood when it rains. It
requires free circulation of air for cooling. Do not install in a damp or non-ventilated location. If installed within an outer enclosure
or beneath the skirt of a hot tub or spa, adequate ventilation and free circulation of air must be provided to prevent overheating of the
motor.
Use of non-Hayward replacement parts voids warranty.
WARNING – Pool and spa components have a finite life. All components should be inspected frequently and replaced at
least every ten years, or if found to be damaged, broken, cracked, missing, or not securely attached.
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NorthStar™ Pump Series__________________ ____________________________Page 3 of 15
WARNING – Risk of Electric Shock. All electrical wiring MUST be in conformance with all
applicable local codes, regulations, and the National Electric Code (NEC). Hazardous voltage can shock,
burn, and cause death or serious property damage. To reduce the risk of electric shock, do NOT use an
extension cord to connect unit to electric supply. Provide a properly located electrical receptacle. Before
working on pump or motor, turn off power supply to the pump.
WARNING – To reduce the risk of electric shock replace damaged wiring immediately. Locate conduit to prevent abuse
from lawn mowers, hedge trimmers and other equipment.
WARNING – It is recommended to install a Ground Fault Circuit Interrupter (GFCI) in the circuit, however, all
electrical wiring MUST be in conformance with all applicable local codes, regulations, and the National Electric Code (NEC).
WARNING – Failure to bond pump to pool structure will increase risk for electrocution and could result in injury or
death. To reduce the risk of electric shock, see installation instructions and consult a licensed electrician on how to bond pump and
for information on local electrical codes for bonding requirements.
Notes to the electrician:
Use a solid copper conductor, size 8 or larger. Run a continuous wire from external bonding lug to reinforcing rod or mesh. Connect
a No. 8 AWG (8.4 mm
parts of swimming pool, spa, or hot tub, and to all electrical equipment, metal piping (except gas piping), and conduit within 5 ft. (1.5
m) of inside walls of swimming pool, spa, or hot tub. IMPORTANT - Reference NEC codes for all wiring standards including, but
not limited to, grounding, bonding and other general wiring procedures.
2
) solid copper bonding wire to the pressure wire connector provided on the motor housing and to all metal
WARNING – Suction Entrapment Hazard.
Suction in suction outlets and/or suction outlet covers which are damaged, broken, cracked, missing, or
unsecured cause severe injury and/or death due to the following entrapment hazards:
Hair Entrapment- Hair can become entangled in suction outlet cover.
Limb Entrapment- A limb inserted into an opening of a suction outlet sump or suction outlet cover that
is damaged, broken, cracked, missing, or not securely attached can result in a mechanical bind or
swelling of the limb.
Body Suction Entrapment- A differential pressure applied to a large portion of the body or limbs can result in an
entrapment.
Evisceration/ Disembowelment- A negative pressure applied directly to the intestines through an unprotected suction outlet
sump or suction outlet cover which is damaged, broken, cracked, missing, or unsecured can result in
evisceration/disembowelment.
Mechanical Entrapment- There is potential for jewelry, swimsuits, hair decorations, fingers, toes, or knuckles to be caught
in an opening of a suction outlet cover resulting in mechanical entrapment.
WARNING - To Reduce the risk of Entrapment Hazards:
- When outlets are small enough to be blocked by a person, a minimum of two functioning suction
outlets per pump must be installed. Suction outlets in the same plane (i.e. floor or wall), must be
installed a minimum of three feet (3’) [0.91 meter] apart, as measured from near point to near
point.
- Dual suction fittings shall be placed in such locations and distances to avoid “dual blockage” by
a user.
- Dual suction fittings shall not be located on seating areas or on the backrest for such seating areas.
- The maximum system flow rate shall not exceed the values shown in the “Pipe Sizing Chart” found at the bottom of page 5
of this manual.
- Never use pool or spa if any suction outlet component is damaged, broken, cracked, missing, or not securely attached.
- Replace damaged, broken, cracked, missing, or not securely attached suction outlet components immediately.
- In addition to two or more suction outlets per pump installed in accordance with latest IAF (formerly NSPI) standards and
CPSC guidelines, follow all national, state, and local codes applicable.
- Installation of a vacuum release or vent system, which relieves entrapping suction, is recommended.
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NorthStar™ Pump Series__________________ ____________________________Page 4 of 15
WARNING – Hazardous Pressure. Pool and spa water circulation systems operate under
hazardous pressure during start-up, normal operation, and after pump shut-off. Stand clear of circulation
system equipment during pump start-up. Failure to follow safety and operation instructions could result in
violent separation of the pump housing and cover due to pressure in the system, which could cause property
damage, severe personal injury, or death. Before servicing pool and spa water circulation system, all
system and pump controls must be in off position and filter manual air relief valve must be in open
position. Before starting system pump, all system valves must be set in a position to allow system water to
return back to the pool. Do not change filter control valve position while system pump is running. Before starting system pump, fully
open filter manual air relief valve. Do not close filter manual air relief valve until a steady stream of water (not air or air and water
mix) is discharged from the valve. All suction and discharge valves MUST be OPEN when starting the circulation system. Failure to
do so could result in severe personal injury and/or property damage.
WARNING – Separation Hazard. Failure to follow safety and operation instructions could
result in violent separation of pump components. Strainer cover must be properly secured to pump housing
with strainer cover lock ring. Before servicing pool and spa circulation system, all system and pump
controls must be in off position and filter manual air relief valve must be in open position. Do not operate
pool and spa circulation system if a system component is not assembled properly, damaged, or missing. Do
not operate pool and spa circulation system unless filter air relief valve body is in locked position in filter
upper body. All suction and discharge valves MUST be OPEN when starting the circulation system.
Failure to do so could result in severe personal injury and/or property damage.
WARNING – Never operate or test the circulation system at more than 50 PSI.
WARNING – Fire and burn hazard. Motors operate at high temperatures and if they are not properly isolated from
any flammable structures or foreign debris they can cause fires, which may cause severe personal injury or death. It is also necessary
to allow the motor to cool for at least 20 minutes prior to maintenance to minimize the risk for burns.
WARNING – Failure to install according to defined instructions may result in severe personal injury or death.
General Information
Introduction
This manual contains information for the proper installation and operation of the Hayward NorthStar Pump Series. The
instructions in this manual MUST be followed precisely. Failure to install according to defined instructions will void
warranty.
Product Benefits
Super-sized 220 cubic-inch basket has extra leaf-holding capacity and extends time between cleanings. Rigid
construction with load extender ribbing assures free flowing operation for heavy debris loads.
Tri-Lock design makes strainer cover removal easy. No tools required, no loose parts, and no clamps.
See-thru strainer cover lets you see when the basket needs cleaning. Test feature allows water pressure test to 50 PSI
MAXIMUM.
All components molded of corrosion-proof glass-filled thermoplastic for extra durability and long life.
Heavy-duty, high-performance motor with air-flow ventilation for quieter, cooler operation.
Uni-bracket mounting base provides stable, stress-free support, plus versatility for any installation requirement.
Heat resistant, industrial size ceramic seal.
Rugged, one-piece housing, with full-flow ports, assures rapid priming and continuous operation.
Balanced, high-head impeller provides high-volume output to accommodate even the most demanding installations,
including pool/spa combinations and in-floor cleaning systems.
Service-ease design gives simple access to all internal parts. Motor and entire drive group assembly can be removed,
without disturbing pipe or mounting connections, by disengaging motor lock ring.
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NorthStar™ Pump Series__________________ ____________________________Page 5 of 15
Product Specifications
HP FR “A” MR “A”
3/4 13 1/4” N/A
1 13 1/2” 13 1/4”
1 1/2 14” 13 1/2”
2 14 3/4” 14”
2 1/2 N/A 14 3/4”
3 16 1/4” 16 1/4”
FR: Full Rate
MR: Max Rate
Installation Instructions
WARNING – This product should be installed and serviced only by a qualified professional.
Pump Location
Locate pump as close to pool as practical and run suction lines as direct as possible to reduce friction
loss. Suction lines should have continuous slope upward from lowest point in line. Joints must be tight
(but not over-tightened). Suction line diameter must equal or be larger than the discharge line diameter.
Though the pump is designed for outdoor use, it is strongly advised to place pump and filter in the
shade to shield them from continuous direct heat. Select a well-drained area that will not flood when it rains. Do NOT
install pump and filter in a damp or non-ventilated location. Keep motor clean. Pump motors require free circulation of
air for cooling.
Pump Mounting
Install pump on a level concrete slab or other rigid base to meet all local and national codes. Pump may be secured with
screws or bolts to further reduce vibration and stress on pipe or hose joints. The base must be level, rigid, and vibration free.
Pump mount must:
Allow pump inlet height to be as close to water level as possible.
Allow use of short, direct suction pipe (to reduce friction losses).
Allow for gate valves in suction and discharge piping.
Be protected from excess moisture and flooding.
Allow adequate access for servicing pump and piping.
Pipe Sizing Chart
MAXIMUM RECOMMENDED SYSTEM FLOW RATE BY PIPE SIZE
Pipe Size
[mm]
1” [32] 20 [75] 5” 1 ½” [50] 45 [170] 7 ½” 2 ½” [75] 110 [415] 12 ½”
1 ¼” [40] 30 [110] 6 ¼” 2” [63] 80 [300] 10” 3” [90] 160 [600] 15”
Flow Rate
GPM [LPM]
* NOTE - It is recommended that a minimum length of straight piping (shown as “L” in above diagram), equivalent
to 5 pipe size diameters, be used between the pump suction inlet and any plumbing fittings (elbows, valves, etc.).
Suction Pipe
Length *
Pipe Size
[mm]
Flow Rate
GPM [LPM]
Suction Pipe
Length *
Pipe Size
[mm]
Flow Rate
GPM [LPM]
Suction Pipe
Length *
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NorthStar™ Pump Series__________________ ____________________________Page 6 of 15
Pump Mounting (cont’d.)
WARNING – Hazardous Pressure. Pumps, filters, and other equipment/ components of a
swimming pool filtration system operate under pressure. Incorrectly installed and/or improperly tested
filtration equipment and/or components may fail resulting in severe personal injury or death.
Plumbing
Use Teflon tape to seal threaded connections on molded plastic components. All plastic fittings must be new or thoroughly
cleaned before use. NOTE - Do NOT use Plumber’s Pipe Dope as it may cause cracking of the plastic components.
When applying Teflon tape to plastic threads, wrap the entire threaded portion of the male fitting with one to two layers of
tape. Wind the tape clockwise as you face the open end of the fitting, beginning at the end of the fitting. The pump suction
and outlet ports have molded-in thread stops. Do NOT attempt to force hose connector fitting past this stop. It is only
necessary to tighten fittings enough to prevent leakage. Tighten fitting by hand and then use a tool to engage fitting an
additional 1 ½ turns. Use care when using Teflon tape as friction is reduced considerably; do NOT over-tighten fitting or
you may cause damage. If leaks occur, remove connector, clean off old Teflon tape, re-wrap with one to two additional
layers of Teflon tape, and re-install connector.
Fittings restrict flow. For better efficiency, use the fewest possible fittings (but at least two suction outlets). Avoid fittings
that could cause an air trap. Pool and spa fittings MUST conform to the International Association of Plumbing and
Mechanical Officials (IAPMO) standards.
(skimmer and main drain).
Use a non-entrapping suction fitting in pool (multiple drains) or double suction
Electrical
WARNING – All electrical wiring MUST be in conformance with all applicable local codes,
regulations, and the National Electric Code (NEC). Ground and bond motor before connecting to
electrical power supply. Failure to ground and bond pump motor can cause serious or fatal electrical
shock hazard.
OFF power to motor before working on electrical connections.
to motor nameplate voltage. Insure that the electrical supply available agrees with the motor’s
voltage, phase, and cycle, and that the wire size is adequate for the HP (kW) rating and distance from
the power source. Use copper conductors only.
Voltage
Voltage at motor MUST NOT be more than 10% above or below motor name plate rated voltage, or motor may
overheat, causing overload tripping and reduced component life. If voltage is less than 90% or more than 110% of
rated voltage when motor is running at full load, consult power company.
Grounding And Bonding
Install, ground, bond, and wire motor in accordance with all applicable local codes, regulations, and the National
Electric Code (NEC).
Permanently ground motor. Use green ground terminal provided under motor canopy or access place; use size and
type wire required by code. Connect motor ground terminal to electrical service ground.
Bond motor to pool structure. Bonding will connect all metal parts within and around the pool with a continuous
wire. Bonding reduces the risk of a current passing between bonded metal objects, which could potentially cause
electrical shock if grounded or shorted. Reference NEC codes for all wiring standards including, but not limited
to, grounding, bonding and general wiring procedures.
Use a solid copper conductor, size 8 or larger. Run wire from external bonding lug to reinforcing rod or mesh.
Connect a No. 8 AWG (8.4 mm
housing and to all metal parts of swimming pool, spa, or hot tub, and to all electrical equipment, metal piping
(except gas piping), and conduit within 5 ft. (1.5 m) of inside walls of swimming pool, spa, or hot tub.
Do NOT ground to a gas supply line. To avoid dangerous or fatal electrical shock, turn
Fire Hazard - match supply voltage
2
) solid copper bonding wire to the pressure wire connector provided on the motor
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NorthStar™ Pump Series__________________ ____________________________Page 7 of 15
Electrical (cont’d.)
Wiring
WARNING – All electrical wiring MUST be in conformance with all applicable local codes, regulations,
and the National Electric Code (NEC).
Pump MUST be permanently connected to circuit. If other lights or appliances are also on the same circuit, be sure
to add their amp loads before calculating wire and circuit breaker sizes. Use the load circuit breaker as the Master
On-Off switch.
Motor Specifications
Max Rate (MR) Full Rate (FR) 60 Hz, 1 PH
HP KW HP KW Voltage Amps Wire Size
1 0.75 3/4 0.55
1-1/2 1.10 1 0.75
2 1.55 1-1/2 1.10
2-1/2 1.87 2 1.55 208-230 20A 12 AWG
3 2.20 - - 208-230 20A 12 AWG
- - 3 2.20 208-230 30A 10 AWG
208-230
115
208-230
115
208-230
115
10A
15A
15A
20A
15A
30A
14 AWG
14 AWG
14 AWG
12 AWG
14 AWG
10 AWG
Start-Up & Operation
Prior to Start-Up
NOTE - If it is necessary to perform a pressure test, prior to initial use to ensure pump is functioning properly, then the
following criteria should be maintained for this test:
1. Have a professional perform this test.
2. Ensure all pump and system components are sealed properly to prevent leaks.
3. Remove any trapped air in the system by fully opening filter manual air relief valve until a
steady stream of water (not air or air and water mix) is discharged from the valve.
4. Allow no more than 50 psi (345 kPa) at a water temperature no higher than 100° F (38° C).
5. Run pressure test for no longer than 24 hours. Immediately inspect all parts to verify they are
intact and functioning properly.
WARNING - If pump is being pressure tested (50 PSI MAXIMUM), be sure pressure
has been released, using the filter manual air relief valve, before removing strainer cover.
WARNING – All suction and discharge valves MUST be OPEN, as well as filter air relief
valve (if available) on filter, when starting the circulating pump system. Failure to do so could result in
severe personal injury.
Starting/Priming the Pump
Fill strainer housing with water to suction pipe level. If water leakage occurs from anywhere on the pump or filter, DO
NOT start the pump. If no leakage occurs, stand at least 10 feet from pump and/or filter and proceed with starting the
pump.
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NorthStar™ Pump Series__________________ ____________________________Page 8 of 15
Starting/Priming the Pump (cont’d.)
WARNING – Return to filter to close filter manual air relief valve when a steady stream of water (not air or air
and water) is discharged from valve.
ATTENTION – FILL STRAINER HOUSING WITH WATER BEFORE STARTING MOTOR. NEVER
OPERATE THE PUMP WITHOUT WATER. Water acts as a coolant and lubricant for the mechanical shaft seal.
NEVER run pump dry. Running pump dry may damage seals, causing leakage, flooding, and voids warranty.
Failure to do so could result in severe personal injury.
ATTENTION – Do NOT add chemicals to pool/spa system directly in front of pump suction. Adding undiluted
chemicals may damage pump and voids warranty.
ATTENTION – Before removing strainer cover:
1. STOP PUMP before proceeding.
2. CLOSE VALVES in suction and outlet pipes.
3. RELEASE ALL PRESSURE from pump and piping system using filter manual air relief valve. See filter
owner’s manual for more details.
4. If water source is higher than the pump, pump will prime itself when suction and outlet valves are opened. If
water source is lower than the pump, unscrew and remove strainer cover; fill strainer housing with water.
5. Clean and lubricate strainer cover O-ring with "Jack's 327" if necessary.
6. Replace strainer cover on strainer housing; turn clockwise to tighten cover.
Before re-starting pump, see “Starting/Priming the Pump” instructions.
NOTE - Tighten strainer cover lock ring by hand only (no wrenches).
ATTENTION – Wait five (5) seconds before re-starting pump. Failure to do so may cause reverse rotation of
motor and consequent serious pump damage.
Turn on power and wait for pump to prime, which may take up to five (5) minutes. Priming time will depend on vertical
length of suction lift and horizontal length of suction pipe. If pump does NOT prime within five minutes, stop motor and
determine cause. Be sure all suction and discharge valves are open when pump is running. See Troubleshooting Guide.
Maintenance
Clean strainer basket regularly. Do NOT strike basket to clean. Inspect strainer cover gasket regularly and replace as
necessary.
Hayward pumps have self-lubricating motor bearings and shaft seals. No lubrication is necessary.
Keep motor clean. Insure motor air vents are free from obstruction to avoid damage. Do NOT use water to hose off
motor.
Occasionally, shaft seals must be replaced, due to wear or damage. Replace with genuine Hayward seal assembly kit.
See “Shaft Seal Change Instructions” in this manual.
Storage/Winterization
WARNING – Separation Hazard. Do not purge the system with compressed air. Purging
the system with compressed air can cause components to explode, with risk of severe injury or death to
anyone nearby. Use only a low pressure (below 5 PSI), high volume blower when air purging the pump,
filter, or piping.
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NorthStar™ Pump Series__________________ ____________________________Page 9 of 15
Storage/Winterization (cont’d.)
ATTENTION – Allowing the pump to freeze will void the warranty.
ATTENTION – Use ONLY propylene glycol as antifreeze in your pool/spa system. Propylene glycol is non-
toxic and will not damage plastic system components; other anti-freezes are highly toxic and may damage plastic components
in the system.
Drain all water from pump and piping when expecting freezing temperatures or when storing pump for a long time (see
instructions below). Gravity drain system as far as possible.
Keep motor dry and covered during storage. To avoid condensation/corrosion problems, do NOT cover or wrap pump with
plastic film or bags.
Storing Pump For Winterization
WARNING – To avoid dangerous or fatal electrical shock hazard, turn OFF power to motor
before draining pump. Failure to disconnect power may result in serious personal injury or death.
1. Drain water level below all inlets to the pool.
2. Remove drain plugs and strainer cover from strainer housing. (See Parts Diagram on page 11 of
this manual for pump component locations.)
3. Disconnect pump from mounting pad, wiring (after power has been turned OFF), and piping.
4. Once the pump is fully drained, re-install the strainer cover and drain plugs. Store pump in a dry
area.
Shaft Seal Change Instructions
IMPORTANT SAFETY INSTRUCTIONS
When servicing electrical equipment, basic safety precautions should always be observed including the following. Failure to follow
instructions may result in injury.
A. Disconnect all electrical power service to pump before beginning shaft seal replacement.
B. Only qualified personnel should attempt rotary seal replacement. Contact your local authorized Hayward Dealer or
Exercise extreme care in handling both the rotating and the stationary sections of the two-part replacement seal. Foreign matter or
improper handling will easily scratch the graphite and ceramic sealing surfaces.
Removing the Motor Assembly (See Parts Diagram on page 11 of this manual for pump component locations.)
service center if you have any questions.
1. Release motor lock ring latch (item #17), then grasp lock ring handle and rotate up.
2. Slide the motor assembly out of the pump/strainer housing (item #3), exposing the diffuser (item #10). Pull the
diffuser off of the seal plate (item #14), exposing the impeller (item #12). (The diffuser may remain in the
pump/strainer housing. To remove, pull it straight out of the pump/strainer housing.)
PLEASE READ AND FOLLOW ALL INSTRUCTIONS
Removing the Impeller (See Parts Diagram on page 11 of this manual for pump component locations.)
3. Remove the motor end cover by removing the two (2) screws or pry off the cap covering the motor shaft. Hex
shaped caps must be twisted off.
4. To prevent motor shaft from turning, secure motor shaft using a 1/2" open-end wrench, which fits over the two (2)
flats on the motor shaft.
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NorthStar™ Pump Series__________________ ____________________________Page 10 of 15
Shaft Seal Change Instructions (cont’d.)
5. Rotate the impeller (item #12) counterclockwise and remove. The spring portion of the seal assembly (item #13) is
now exposed. Note carefully the position of the spring seal, and remove it. Remove impeller ring (item #11) as
well.
NOTE - Replace motor cover to protect delicate motor parts.
Removing the Ceramic Seat (See Parts Diagram on page 11 of this manual for pump component locations.)
6. Remove the seal plate (item #14). Note the tab on the top of the plate and the mating groove on the top of the motor
mounting plate (item #16).
7. Press the ceramic seat with rubber cup (item #13) out of the seal plate (item #14). If tight, use a small screwdriver to
tap seal out.
STOP - Clean all recesses & parts to be reassembled. Inspect gaskets & replace if necessary.
Seal Installation (See Parts Diagram on page 11 of this manual for pump component locations.)
8. Clean and lightly lubricate the motor shaft and seal recess in the seal plate (item #14) with a dilute solution of nongranulated liquid-type soap. Gently wipe the polished face of the ceramic seal (item #13) with a soft cotton cloth.
Lubricate the rubber cup on the ceramic seat and press it firmly into the recess of the seal plate – polished side
facing away from seal plate.
9. Reassemble the seal plate (item #14) to the motor mounting plate (item #16), aligning the tabs on the seal plate with
the grooves on the motor mounting plate.
10. Gently wipe the black, polished surface of the spring seal assembly (item #13) with a clean, soft, cotton cloth. Press
the spring seal assembly onto the motor shaft – black polished surface facing the ceramic seat.
Replacing the Impeller and Diffuser (See Parts Diagram on page 11 of this manual for pump component locations.)
11. Screw the impeller (item #12) onto the motor shaft in a clockwise direction. Tighten snugly by holding motor shaft
with wrench as noted in step #4. Place the impeller ring (item #11) back onto the impeller, with flange facing
towards the diffuser (item #10).
12. Place the diffuser (item #10) over the impeller/impeller ring (item #11 & #12) onto the seal plate (item #14).
Replacing the Motor Assembly (See Parts Diagram on page 11 of this manual for pump component locations.)
13. Fasten motor end cover by using the two (2) hex shaped screws. Slide the motor assembly with the diffuser (item
#10) in place, into pump/strainer housing (item #3), being careful not to disturb the diffuser gasket (item #9).
14. Fasten assembly to pump/strainer housing (item #3) by rotating motor lock ring (item #17) down until lock engages.
(Be sure housing gasket is lubricated and in place, and replace if damaged).
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NorthStar™ Pump Series__________________ ____________________________Page 11 of 15
Replacement Parts
Parts Diagram
Parts Listing
Ref. No. Part No. Description Ctn. Qty.
1 SPX3200UNKIT Union Connector Kit (Includes Union Nut, Union Connector, Union Gasket - 2 ea.) 1
2 SPX3200UG Union Gasket 1
3 SPX4020TP Pump Strainer Housing, 2” x 2 1/2” with Drain Plugs, threaded style 1
4 SPX4000M Strainer Basket 1
5 SPX4000S Strainer Cover O-Ring 10
6 & 7 SPX4000CLO Strainer Cover Kit (Includes Strainer Cover, Lock Ring, O-Ring) 10
SPX4000CLOB Strainer Cover Kit (Biguanide Sanitizer Applications Only; NOT Pressure Testable) 10
8 SPX4000T Seal Plate O-Ring 10
9 SPX4000Z1 Diffuser O-Ring 10
10 SPX4000B Diffuser 1
11 SPX3021R Impeller Ring 1
12 See SKU Detail Impeller Kit (Includes Impeller, Impeller Ring, Seal Assy)
10 (5 for
2-3 HP)
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NorthStar™ Pump Series__________________ ____________________________Page 12 of 15
Parts Listing (cont’d.)
Ref. No. Part No. Description Ctn. Qty.
13 SPX4000SA2 Shaft Seal Assembly 10
14 SPX4000E Seal Plate 1
15 SPX0125Z44 Motor Cap Screws 1
16 SPX4000F Motor Mounting Plate 1
17 SPX4000K Motor Lock Ring 1
18 See SKU Detail Motor 1
19 & 20 SPX4000FG Drain Plug with O-Ring 10
21 SPX4000GA Mounting Base w/2 Cap Screws 1
22 SPX1600Z52 Mounting Base Cap Screw Kit (set of 2) 1
Pump SKU Detail
Pump P/N Description Impeller Kit P/N Motor P/N
SP4007 ¾ HP FR SPX4007CKIT SPX1607Z1BNS
SP4010 1 HP FR SPX4010CKIT SPX1610Z1BNS
SP4015 1 ½ HP FR SPX4015CKIT SPX1615Z1BNS
SP4020 2 HP FR SPX4020CKIT SPX1620Z1BNS
SP4030 3 HP FR SPX4030CKIT SPX1630Z1BNS
SP4007X10 1 HP MR SPX4007CKIT SPX1607Z1MNS
SP4010X15 1 ½ HP MR SPX4010CKIT SPX1610Z1MNS
SP4015X20 2 HP MR SPX4015CKIT SPX1615Z1MNS
SP4020X25 2 ½ HP MR SPX4020CKIT SPX1620Z1MNS
SP4025X30 3 HP MR SPX4025CKIT SPX1625Z1MNS
SP4010X152 1 ½ HP MR 2 SP SPX4010CKIT SPX1610Z2MNS
SP4015X202 2 HP MR 2 SP SPX4015CKIT SPX1615Z2MNS
SP4020X252 2 ½ HP MR 2 SP SPX4020CKIT SPX1620Z2MNS
Note
MR: Max Rate Pump
2 SP: Dual Speed Pump
: FR: Full Rate Pump
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Page 13
NorthStar™ Pump Series__________________ ____________________________Page 13 of 15
Troubleshooting
Motor Will NOT Start – Check For:
Make sure the terminal board connections agree with the wiring diagram on motor data plate label. Be sure motor is wired
for available field supply voltage (see pump operating label).
1. Improper or loose wiring connections; open switches or relays; tripped circuit breakers, or blown fuses.
Solution: Check all connections, circuit breakers, and fuses. Reset tripped breakers or replace blown fuses.
2. Manually check rotation of motor shaft for free movement and lack of obstruction.
Solution: Refer to Steps 4 & 5 of “Shaft Seal Change Instructions” in this manual.
3. If you have a timer, be certain it is working properly. Bypass it if necessary.
Motor Shuts OFF – Check For:
1. Low voltage at motor or power drop (frequently caused by undersized wiring or extension cord use).
Solution: Contact qualified professional to check that the wiring gauge is heavy enough.
NOTE: Your Hayward pump motor is equipped with an “automatic thermal overload protector.” The motor will
automatically shut off if power supply drops before heat damage can build up causing windings to burn out. The “thermal
overload protector” will allow the motor to automatically restart once the motor has cooled. It will continue to cut On/Off
until the problem is corrected. Be sure to correct cause of overheating.
Motor Hums, But Does NOT Start – Check For:
1. Impeller jammed with debris.
Solution: Have a qualified repair professional open the pump and remove the debris.
Pump Won't Prime, Check For:
1. Empty pump/strainer housing.
Solution: Make sure pump/strainer housing is filled with water and cover o-ring is clean. Ensure o-ring is properly seated in
the cover o-ring groove. Ensure o-ring sealing surface is lubricated with “Jack’s 327” and that strainer cover is locked firmly
in position. Lubricant will help to create a tighter seal.
2. Loose connections on suction side.
Solution: Tighten pipe/union connections.
NOTE - Any self-priming pump will not prime if there are suction air leaks. Leaks will result in bubbles emanating from
return fittings on pool wall.
3. Leaking O-ring or packing glands on valves.
Solution: Tighten, repair, or replace valves.
4. Strainer basket or skimmer basket loaded with debris.
Solution: Remove strainer housing cover or skimmer cover, clean basket, and refill strainer housing with water. Tighten
cover.
5. Suction side clogged.
Solution: Contact a qualified repair professional.
Block off to determine if pump will develop a vacuum. You should have 5” - 6” of vacuum at the strainer cover (Only your
pool dealer can confirm this with a vacuum gauge).
a. If pump develops a vacuum, check for blocked suction line or dirty strainer basket. An air leak in the suction
piping may be the cause.
b. If pump does not develop a vacuum and pump has sufficient “priming water”:
i. Re-check strainer housing cover and all threaded connections for suction leaks. Check if all system
hose clamps are tight.
ii. Check voltage to ensure that the motor is rotating at full RPM’s.
iii. Open housing cover and check for clogging or obstruction in suction. Check impeller for debris.
iv. Remove and replace shaft seal only if it is leaking.
Low Flow – Generally, Check For:
1. Clogged or restricted strainer or suction line.
Solution: Contact a qualified repair professional.
2. Undersized pool piping.
Solution: Correct piping size.
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Page 14
NorthStar™ Pump Series__________________ ____________________________Page 14 of 15
(
)
Low Flow – Generally, Check For: (cont’d.)
3. Plugged or restricted discharge line of filter, valve partially closed (high gauge reading).
Solution: Sand filters – backwash as per manufacturer’s instructions; D.E. filters – backwash as per manufacturer’s
instructions; Cartridge filters – clean or replace cartridge.
4. Air leak in suction (bubbles issuing from return fittings).
Solution: Re-tighten suction and discharge connections using Teflon tape. Inspect other plumbing connections and tighten
as required.
5. Plugged, restricted, or damaged impeller.
Solution: Replace including new seal assembly.
Noisy Pump – Check For:
1. Air leak in suction piping, cavitations caused by restricted or undersized suction line or leak at any joint, low water level
in pool, and unrestricted discharge return lines.
Solution: Correct suction condition or throttle return lines, if practical. Holding hand over return fitting will sometimes
prove this point or putting in a smaller eyeball fitting.
2. Vibration due to improper mounting, etc.
Solution: Mount the pump on a level surface and secure the pump to the equipment pad.
3. Foreign matter in pump housing. Loose stones/debris hitting impeller could be cause.
Solution: Clean the pump housing.
4. Motor bearings noisy from normal wear, rust, overheating, or concentration of chemicals causing seal damage which will
allow chlorinated water to seep into bearings wiping out the grease causing bearing to whine.
Solution: All seal leaks should be replaced at once.
© Hayward Pool Products, 2007
All rights reserved.
PRODUCT REGISTRATION
Retain For Your Records
DATE OF INSTALLATION ____________________
INITIAL PRESSURE GAUGE READING (CLEAN FILTER) _______________________
PUMP MODEL ________________ HORSEPOWER _______________________
FILTER MODEL ________________ SERIAL NUMBER _______________________
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Page 15
NorthStar™ Pump Series__________________ ____________________________Page 15 of 15
HAYWARD® LIMITED WARRANTY
This pump was inspected before shipment from our plant. To original purchasers of this pump, Hayward Pool
Products, 620 Division Street, Elizabeth, New Jersey, warrants its products free from defects in materials and
workmanship for a period of ONE (1) year from the date of purchase.
Parts which fail or become defective during the warranty period, except as a result of freezing, negligence, improper
installation, use, or care, shall be repaired or replaced, at our option, without charge, within 90 days of the receipt of
defective product, barring unforeseen delays.
To obtain warranty replacements or repair, defective components or parts should be returned, transportation paid, to
the place of purchase, or to the nearest authorized Hayward service center. For further Hayward dealer or service
center information, contact Hayward customer service department. No returns may be made directly to the factory
without the express written authorization of Hayward Pool Products.
To original purchasers of this pump, Hayward Pool Products warrants its pump housing/strainer to be free from
defects in materials and workmanship for a period of ONE (1) year from the date of purchase.
Pump housing/strainers which become defective during the warranty period, except as a result of freezing,
negligence, improper installation, use or care, or as the result of a use in association with an automatic valving
system, shall be repaired, at our option, without charge.
All other conditions and terms of the standard warranty apply.
Hayward shall not be responsible for cartage, removal and/or reinstallation labor or any other such costs incurred in
obtaining warranty replacements.
The Hayward Pool Products warranty does not apply to components manufactured by others. For such products, the
warranty established by the respective manufacturer will apply.
Some states do not allow a limitation on how long an implied warranty lasts, or the exclusion or limitation of
incidental or consequential damages, so the above limitation or exclusion may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state.
Hayward Pool Products
*Supersedes all previous publications. Elizabeth, NJ 07207
620 Division Street
▲Retain this Warranty Certificate (upper portion) in a safe and convenient location for your records.
▼DETACH HERE: Fill out bottom portion completely and mail within 10 days of purchase/installation, or REGISTER ONLINE AT
WWW.HAYWARDPOOL.COM
.
------------------------------------------------------------------------------------------------------------
Mail to: Hayward Pool Products, 620 Division Street, Elizabeth, NJ 07207, Attn: Warranty Dept.
Warranty Registration Card
Name__________________________________________________ Years pool has been in service □ less than 1 □ 1-3 □ 3-5 □ 5-10
Address________________________________________________ Purchased from:
City______________________ State_________ Zip____________ Company name________________________________________________
E-mail Address__________________________________________ Address_______________________________________________________
Product Model No._______________________________________
Product Serial No. _______________________________________
□ New Installation □ Replacement products from Hayward:
Type of In-Ground Pool:
□ Vinyl □ Fiberglass □ Gunite □ Chlorinator □ Skimmer □ Heater □ Heat Pump
Size of Pool______________________________________
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City__________________________ State_________ Zip_______________
Please send me more information on these other
□ Pump □ Filter □ Automatic Pool Cleaner □ Light
□ Salt/Chlorine Generator □ Controls
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