Pentair Swimming Pool Pump User Manual

WhisperFlo® Pump Owner's Manual

IMPORTANT SAFETY INSTRUCTIONS

READ AND FOLLOW ALL INSTRUCTIONS

SAVE THESE INSTRUCTIONS

Table of Contents

SECTION I. GENERAL INFORMATION .............................................................................................................. 2

SECTION II. MAINTENANCE .............................................................................................................................. 3

SECTION III. SERVICE ........................................................................................................................................ 5

SECTION IV. RESTART INSTRUCTIONS ............................................................................................................. 6

SECTION V. TROUBLESHOOTING ..................................................................................................................... 7

SECTION VI. TECHNICAL DATA .......................................................................................................................... 8

A. REPLACEMENT PARTS ............................................................................................................................ 8

B. PUMP CURVES .......................................................................................................................................... 9

SECCIÓN I. INFORMACIÓN GENERAL ........................................................................................................... 12

WARNING

Before installing this product, read and follow all warning notices and instructions accompanying this pump.
Failure to follow safety warnings and instructions can result in severe injury, death, or property damage. Call
[phone] for additional free copies of these instructions.

Important Notice

Attention Installer.
This manual contains important information about the installation, operation and safe use of this

product. This information should be given to the owner/operator of this equipment.

WARNING

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 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.

Pentair Pool Products

1620 Hawkins Ave., Sanford, NC 27330 • [phone]
10951 West Los Angeles Ave., Moorpark, CA 93021 • [phone]

Rev. E 1-25-02 1 P/N 071109

Listed

227T

Listed

NOTE

When pump is mounted permanently within 5 ft. of the inside walls of a swimming pool, you must use a No. 8 AWG or
larger conductor to connect to bonding conductor lug.

WARNING

To reduce the risk of injury, do not permit children to use this product unless they are closely supervised at all times.

CAUTION

This pump is for use with permanently installed 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 may be readily disassembled for
storage and reassembled to its original integrity and has a maximum dimension of 18 feet (5.49m) and a maximum wall
height of 42 inches (1.07m).

CAUTION

For hot tubs and spa pumps, do not install within an outer enclosure or beneath the skirt of a hot tub or spa unless so
marked.

SECTION I. GENERAL INFORMATION

A. Wiring.

WARNING

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 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 (230v or 115v). If they do not match the motor
will burn up.

3. Choose a wire size from the Chart 1. When in doubt
use a heavier gauge (larger diameter) wire. Heavier
gauge will allow the motor to run cooler and more
efficient.

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.

6. Permanently ground the motor using the green ground
terminal located on the inside of the motor canopy or
access plate, see Figure 1. Use the correct wire size
and type specified by National Electrical Code. Make
sure the ground wire is connected to an electrical
service ground.

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P/N 071109 2 Rev. E 1-25-02

7. Bond the motor to the pool structure in accordance with the

Bonding Lug

Ground Screw

National Electrical Code. Use a solid No. 8 AWG or larger
copper conductor. Run a wire from the external bonding to the
pool bonding structure, see Figure 1.

8. Connect the pump permanently to a circuit. Make sure no other
lights or appliances are on the same circuit.

NOTE

It is important that the O-ring be kept clean and well lubricated. We recommend a
silicone base lubricant for best results.

Figure 1.

B. The Pump Strainer Basket.

This unit, sometimes referred to as the ‘Hair and Lint Pot’, is the unit in front of the volute. Inside the chamber is the
basket which must be kept clean of leaves and debris at all times. View basket through the ‘See Through Lid’ to inspect
for leaves and debris.

Regardless of the length of time between filter cleaning, it is most 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 which would result in a costly repair bill.

SECTION II. MAINTENANCE

WARNING

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.

CAUTION

To prevent damage to the pump and filter and for proper operation of the system, clean pump strainer and skimmer
baskets regularly.

A. Pump Strainer Basket Cleaning Procedures.

1. Turn off motor.

2. Relieve pressure in the system.

3. Turn the clamp and lid in a counter-clockwise direction until it stops.

4. Turn the clamp and lid set to remove the clamp and lid.

5. Put the debris from the basket into the trash and rinse out the basket.
If the basket is cracked, it should be replaced.

6. Replace the basket and fill the pump pot and volute up to the inlet
port with water.

Clamp, pot

Lid

O-ring, lid

Basket

7. Clean the cover, cover O-ring, and sealing surface of the pump pot.
Grease the O-ring with Teflon or silicone.

Pot

8. Reinstall the lid by placing the clamp and the lid on the pot;
see Figure 2.

a. Make sure the lid O-ring is properly placed. Seat the clamp and

lid then turn clockwise until the handles are horizontal;
see Figure 3.

Rev. E 1-25-02 3 P/N 071109

Figure 2.

9. Turn the power “ON” at the house circuit breaker. Reset the pool time clock to the correct time.

WARNING

THIS FILTER 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
BLOW OFF WHICH CAN RESULT IN SEVERE INJURY, DEATH, OR PROPERTY DAMAGE. TO
AVOID THIS POTENTIAL HAZARD, FOLLOW THESE INSTRUCTIONS.

10. Open the High Flow™ manual air relief valve on top of the filter.

11. Stand clear of the filter. Start the pump.

12. Bleed air from the filter until a steady stream of water comes out.
Close the High Flow™ manual air relief valve.

B. Winterizing.

1. If the air temperature drops below 35° F. the water in the pump can
freeze and cause damage. Freeze damage is not warrantable.

2. To prevent freeze damage follow the procedures listed below.
a. Shut off electrical power for the pump at the house circuit breaker.
b. Drain the water out of the pump case by removing the two thumb-

twist drain plugs from the case. Store the plugs in the pump basket.
c. Cover the motor to protect it from severe rain, snow and ice.
d. Do not wrap the motor in plastic. It will cause condensation and rust on the inside of the motor.

C. Care of Electric Motor.

1. Protect from heat.
a. Shade the motor from the sun.
b. Any enclosure must be well ventilated to prevent overheating.
c. Provide ample cross ventilation.

2. Protect against dirt.
a. Protect from any foreign matter or splashing water.
b. Do not store (or spill) pool chemicals near the motor.
c. Avoid sweeping or stirring up dust near the motor while it is operating.
d. If a motor has been damaged by dirt it voids the motor warranty.

3. Protect against moisture.
a. Protect from splashing pool water.
b. Protect from the weather.
c. Protect from lawn sprinklers.
d. If a motor has become wet - let it dry before operating. Do not allow the pump to operate if it has been

flooded.

e. If a motor has been damaged by water it voids the motor warranty.

Lid

Volute

Clamp

Figure 3.

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.

NOTE

When replacing the motor, be certain that the motor support is correctly positioned to support the size of motor being
installed.

P/N 071109 4 Rev. E 1-25-02

SECTION III. SERVICE

WARNING

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 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.

WARNING

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.

A. Pump Disassembly.

1. All moving parts are located in the rear sub-assembly of this pump.
Tools required:
a. 3/32 inch Allen head wrench.
b. ½ inch open end wrench.
c. 9/16 inch open end wrench.
d. Flat blade screwdriver.

2. To remove and repair the motor sub-assembly perform the following procedures.
a. Turn off the pump circuit breaker at the main panel.
b. Drain the pump by removing the drain plugs.
c. Remove the 6 bolts that hold the main pump body (strainer pot/volute) to the rear sub-assembly.
d. GENTLY pull the two pump halves apart, removing the rear sub-assembly.
e. Use a 3/32 inch Allen head wrench to loosen the two holding screws located on the diffuser.

CAUTION

Be sure not to scratch or mar the polished shaft seal faces; seal will leak if faces are damaged.

f. Hold the impeller securely in place and remove the impeller lock screw by using a flat blade

screwdriver. The screw is a left-handed thread and loosens in a clockwise direction.

g. Remove the shaft cap located at the back of the motor and hold the shaft secure with a ½ inch

(Century) or 7/16 inch (Franklin) open-end wrench. On A. 0. Smith motors, remove the motor canopy,

move the capacitor to one side and hold the shaft with a 7/16 inch open-end wrench.
h. To unscrew the impeller from the shaft, twist the impeller counterclock- wise.
i. Remove the four bolts from the seal plate to the motor, using a 9/16 inch wrench.
j. Place the seal plate face down on a flat surface and tap out the carbon/spring seat.
k. Clean the seal plate, seal housing, and the motor shaft.

Rev. E 1-25-02 5 P/N 071109

B. Pump Reassembly/Seal Replacement; see Section V, Technical

Data, Figure 4.

Bolt

1. When installing the replacement shaft seal, use silicone
sealant on the metal portion, before pressing into the seal

Seal Plate

plate.

2. Before installing the ceramic section of the seal into the
impeller, be sure the impeller is clean. Use a light density
soap and water to seal the seal. Press the seal into the
impeller with your thumbs and wipe off the ceramic and
carbon faces with a clean cloth.

3. Remount the seal plate to the motor.

Gasket

Lockscrew

Lockscrew Seal

Water Slinger

Motor Shaft

Impeller

4. Grease the motor shaft thread and screw impeller onto the
motor shaft.

5. Screw in the impeller lock screw (counter-clockwise to tighten).

6. Remount the diffuser onto the seal plate. Make sure the plastic pins and holding screw inserts are aligned.

7. Grease the diffuser O-ring and seal plate gasket or O-ring prior to reassembly.

8. Grease the bolt threads, assemble the motor sub-assembly to the strainer pot-pump body by using the two
through bolts for proper alignment. Do not tighten the through bolts until all 6 bolts are in place and finger
tightened.

9. Fill the pump with water.

10. Reinstall the pump lid and plastic clamp; see SECTION II. START-UP.

11. Reprime the system.

Figure 4.

C. The Shaft Seal.

1. The Shaft Seal consists primarily of two parts, a rotating member and a ceramic seal.

2. The pump requires little or no service other than reasonable care, however, a Shaft Seal may occasionally
become damaged and must be replaced.

CAUTION

The polished and lapped faces of the seal could be damaged if not handled with care.

CAUTION

In mild climate area, when temporary freezing conditions may occur, run your filtering equipment all night to prevent
freezing.

SECTION IV. RESTART INSTRUCTIONS

A. If 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 re-open valves prior to operating.

CAUTION

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.

NOTE

Continued operation in this manner could cause a loss of pressure, resulting in damage to the pump case, impeller and seal.

P/N 071109 6 Rev. E 1-25-02