Pentair Pool Products 4HP-VD - 3' STD Installation and operating instructions

P/N 350039 Rev. C 8-24-06 1
OptiFlo®Plastic Pump
for Aboveground Pools
Installation, Operation & Service Manual
Pentair Water Pool and Spa, Inc.
1620 Hawkins Ave., Sanford, NC 27330 • 800-831-7133 or [phone]
10951 West Los Angeles Ave., Moorpark, CA 93021 • 800-831-7133 or [phone]
Visit us on the Internet at: www.pentairpool.com or www.staritepool.com
IMPORTANT SAFETY INSTRUCTIONS
READ AND FOLLOW ALL INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important safety instructions which must be furnished to the end user. Failure to read and follow instructions could
result in serious personal injury and/or major property damage.
WARNING
PUMP IS DESIGNED AND INTENDED FOR USE TO CIRCULATE
WATER IN ABOVEGROUND SWIMMING POOLS.
Listed

P/N 350039 Rev. C 8-24-06 2
OptiFlo®Engineered Plastic Pump Installation, Operation & Service Manual
Table of Contents
SECTION I. HOW YOUR PUMP WORKS ............................................................................................... 3
SECTION II. INSTALLATION ................................................................................................................. 3-6
SECTION III. PUMP OPERATION AND MAINTENANCE ....................................................................... 6
SECTION IV. SEAL REPLACEMENT PROCEDURE ............................................................................ 6-7
SECTION V. WINTERIZING PROCEDURE .............................................................................................. 7
SECTION VI. TROUBLESHOOTING GUIDE ............................................................................................. 8
SECTION VII. TECHNICAL DATA ........................................................................................................ 9-12
WARNING
To reduce the risk of injury, do not permit children to use this product unless they are closely supervised at all times.
WARNING
Beforeinstallingthisproduct,readandfollowallwarningnoticesandinstructionsaccompanyingthispump.Failuretofollowsafetywarningsandinstructions
can result in severe injury, death, or property damage. Call [phone] for additional free copies of these instructions.
Important Notice
AttentionInstaller.
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.
PUMPSAFETYINSTRUCTIONS
When installing and using this electrical equipment, basic safety precautions should always be followed, including the
following:
WARNING
RISK OF ELECTRICAL SHOCK OR ELECTROCUTION
ThispoolpumpmustbeinstalledbyalicensedorcertifiedelectricianoraqualifiedpoolservicemaninaccordancewiththeNationalElectrical
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.
Alwaysdisconnect powerto thepool pumpat thecircuit breakerbefore servicingthe pump. Failure to do so could result in deathor serious
injury to serviceman, pool users or others due to electric shock.
WARNING
RiskofElectrical Shock. Connectonly to a groundingtype receptacle protectedbya ground-fault circuit-interrupter(GFCI). Contact a qualifiedelectrician
if you cannot verify that the receptacle is protected by a GFCI.
WARNING
Do not bury the electrical cord. Locate the cord to minimize the abuse from lawn mowers, hedge trimmers, and other equipment.
WARNING
To reduce the risk of electrical shock, replace damaged cord immediately.

P/N 350039 Rev. C 8-24-06 3
WARNING
To reduce the risk of electrical shock, do not use an extension cord to connect unit to electric supply; provide a properly located outlet.
WARNING
For continued protection against possible electrical shock, this unit is to be mounted to the base in accordance with the installation instructions.
Important Notice
This pump operates with electrical voltage, and can generate both vacuum and pressure in the water system. When properly wired and plumbed, this
pump will operate in a safe manner.
CAUTION
Thispumpisfor use with permanentlyinstalledpoolsand may also beusedwithhot tubs and spas.Donotuse with storable poolsunlesspumpisprotected
byfactoryinstalled double insulatedenclosure.A permanently installed poolis constructed in oronthe ground orina building such thatitcannot 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.
READ AND FOLLOW ALL SAFETY INSTRUCTIONS
SECTION I. HOW YOUR PUMP WORKS
Your centrifugal pump is designed to operate for years with proper maintenance. The pump housing, seal plate, hair
and lint pot and impeller are made from high quality thermoplastic materials. These materials have been selected for
their corrosion resistance nature. When installed, operated and maintained in accordance with these instructions, your
pump will provide years of service.
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.
2-Speed Pump Models:
The performance of this pump will be the same at high speed as the same model single speed pump, hydraulically. 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 the motor to low speed for quiet operation and electrical cost savings. Since the pump should be operated mostly at
low speed for cost savings, 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.
SECTION II. INSTALLATION
1. Check carton for any evidence of damage due to rough handling in shipment. If carton or any pump components
are damaged, notify freight carrier immediately.
2. After inspection, carefully remove pump from carton.
3. The pump should be secured to a flat solid foundation, high enough to prevent flooding of the motor. A sheltered
location is best, being sure to allow for adequate ventilation.

P/N 350039 Rev. C 8-24-06 4
4. Provide space and lighting for routine maintenance access. Do not mount electrical controls directly over pump.
5. The pump should be installed as near to the pool or spa as practical. Avoid installing the pump above the water
level. Suction lifts of more than 1/2 foot will cause very long priming times, and potentially damage the pump.
6. The location should provide for adequate floor drainage to prevent flooding.
7. When installing your pump, remember to provide valves or other means to disconnect the pump suction and
discharge for servicing.
8. Never store pool chemicals within 10 ft. of your pool filter and pump. Pool chemicals are corrosive and should
always be stored in a cool, dry, well ventilated area.
WARNING
Chemical fumes and/or spills can cause severe corrosive attack to the filter and pump structural components. Structurally weakened
filter or pump components can cause filter, pump or valve attachments to blow off and could cause severe bodily injury or property
damage.
9. Assemble piping and pipe fittings to pump and valve. All piping must conform to local and state plumbing and sanitary
codes.
10. Use Teflon tape or pipe sealants on all male connections of pipe and fittings. Use only pipe sealant compounds suited
for plastic pipe. Support pipe to prevent strains on filter, pump or valve. DO NOT USE PETROLEUM BASED
PRODUCTS.
11. Avoid over tightening the pipe threads when connecting fittings to the pump. Proper procedure is to apply a pipe
sealant to the thread and then install hand tight plus 1 1/2 turns. DO NOT OVER TIGHTEN.
12. Long piping runs and elbows restrict flow. For best efficiency use the fewest possible fittings, large diameter pipe
(at least 1 1/2”) & locate equipment as close to the pool as possible. The pump suction line should not be smaller
than the pipe size on the inlet of the pump.
13 It is essential that the suction line be free of air leaks and air traps.
WARNING
Blockage of suction fittings can cause severe or fatal injury due to drowning. Small children using pool/spa equipment must always
have close adult supervision.
14. Suction fittings must conform to ASME/ANSI A 112.19.8 M Standards. Use double suction fittings.
15. The maximum operating pressure of this unit is 25 pounds per square inch. Never operate this pump above this
pressure.
This pump is not intended to be operated in series with other pumps.
WARNING
To reduce the risk of injury, do not permit children to use this product unless they are closely supervised at all times.
16. Wiring of this pump should be performed by a licensed electrician in accordance with the National Electrical Code
or your local electrical code.
WARNING
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 this unit.

P/N 350039 Rev. C 8-24-06 5
17. The 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.
18. The wiring to the motor should be kept as short as possible and large enough NOT to cause an excessive voltage
drop. Use the wire size table as a guide in selecting minimum conductor size.
19. Install, ground and bond wire according to local or National Electrical Code requirements.
GROUNDING
20. 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 - (for permanently wired pumps)
21. 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. 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 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.
WARNING
(For cord and plug-connected units) Do not bury cord. Locate cord to minimize abuse from lawn mowers, hedge trimmers and other
equipment.
WARNING
(For cord and plug-connected units) To reduce the risk of electric shock, replaced damaged cord immediately.
WARNING
(For cord and plug-connected units) To reduce the risk of electric shock, do not use extension cord to connect unit to electric supply;
provide a properly located outlet.
CAUTION
Do not install within an outer enclosure or beneath the skirt of a hot tub or spa unless so marked.
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1A511/06/51121#21#
2/1-1A021/06/51121#01#
2/1-1A511/06/03241#41#

P/N 350039 Rev. C 8-24-06 6
INITIALSTART-UP:
1. Relieve all system pressure and open all air bleeders on total hydraulic system prior to starting the 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 valving 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 pot lid clamp will have to be removed by rotating the lid counter-clockwise to
a stop and lifting the clamp.
5. The pump strainer pot should be filled with water up to suction opening 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 on the pot by aligning the clamp ears with the slots on the strainer pot. Press the lid and
clamp down and twist the clamp clockwise to engage.
8. The pump is now ready to prime. Turn the motor on 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 five minutes
and refer to the Troubleshooting Guide section of this manual.
NOTICE
Never run the pump dry. Running the pump dry may damage the seals and pump housing. This could allow water leakage and
flooding.
SECTION III. PUMP OPERATION AND 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.
The strainer basket in the pump should be inspected and cleaned twice each 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.
Refer to motor service centers for motor servicing.
SECTION IV. DISASSEMBLY/ASSEMBLY PROCEDURE FOR SEAL REPLACEMENT
WARNING
Never work on pump while it is running or power is still connected. Hazardous voltage can cause severe or fatal injury.
1. Stop pump and relieve system pressure.
2. Disconnect motor power at Circuit Breaker.
3. Close suction and discharge valves.

P/N 350039 Rev. C 8-24-06 7
4. Use extreme care when handling the mechanical seal. The mating seal surfaces are polished and are easily
damaged.
5. The mechanical seal can be changed without disconnecting piping by removing 4 bolts (see item 14 on page 9) and
pulling the motor with pump seal plate and impeller assembly away from front pump housing body.
6. Remove impeller and rotating portion of seal by holding motor shaft and rotating the impeller counter-clockwise
when facing the shaft extension on the motor.
7. The rotating portion of the seal can now be removed from the impeller. Clean the impeller hub and lubricate with
soapy water. Wipe off shining carbon sealing surface of new mechanical seal with a clean tissue to remove oily
fingerprints or other foreign materials. The new rotating seal can be pressed back onto the impeller.
8. To remove the stationary ceramic seal seat, first loosen the four motor bolts which run through the entire length
of the motor into the seal plate. Remove the seal plate from the motor. Press the ceramic seat and rubber gasket
out of the seal plate.
9. Clean the seal plate seal area and lubricate with soapy water. Press the new ceramic seal and gasket into the seal
plate, being sure it is fully seated. Wipe off the ceramic sealing surface with a clean tissue to remove oily fingerprints
or foreign substances.
10. Place the seal plate on the motor and carefully align the four motor through bolts. Secure the seal plate onto the
motor being careful not to overtighten the bolts. Gradually bring bolts up to final tightness by moving across in a criss-
cross pattern.
11. Check the position of the mechanical seal set in the seal plate and ensure the motor shaft is in the center of the seal
set.
12. Screw the impeller with new rotating seal onto the motor shaft. Rotate the motor shaft to make sure the impeller
is not touching the seal plate.
13. Clean the seal plate “O” Ring and check to make sure it is in position. Replace the motor and seal plate on the front
pump housing body and bolt into position with 4 bolts. Gradually bring bolts up to final tightness by moving across
in a criss-cross pattern.
14. Refer to initial start-up procedures to restart the pump.
SECTION V. WINTERIZING PROCEDURE
NOTICE
Allowing the water to freeze in pump will damage the pump and cause potential water damage/flooding and potential property
damage.
1. Drain all water from pump housing and piping when freezing temperatures are expected. A drain plug is provided
to drain the pump. If the pump has a strainer pot both the strainer drain plug and the housing drain plug should be
removed. If pump has no strainer pot then only remove the housing plug.
2. If the pump can be removed and placed in an inside dry location this should be done.
3. For an outdoor unprotected location it is best to protect the equipment in a weatherproof enclosure.
4. Do not wrap the motor with plastic because condensation could form inside the motor.
5. In installation where the pump cannot be drained a 40% propylene glycol 60% water solution will protect
to -50° F.
NOTICE
Do not use anti-freeze solutions except propylene glycol, as other anti-freeze is highly toxic and will damage the pump.

P/N 350039 Rev. C 8-24-06 8
SECTION VI. TROUBLESHOOTING GUIDE
The following are some common causes of problems that may arise.
PROBLEM CAUSE REMEDY
Pump will not prime. No water in strainer pot. Add water to pot.
Strainer pot lid is not tight. Tighten lid.
Damaged lid o-ring. Replace o-ring.
Water level is below skimmer. Adjust pool water level.
Strainer basket or skimmer basket Clear basket.
is clogged.
Closed valve in piping system. Check all valves and open all
necessary valves.
Pump is on low speed Adjust to high speed.
(two-speed units only).
Air leak in suction line. Find and fix leak.
Water level is too low and the Adjust pump level and insure
pump cannot lift. it is below water level.
Low flow — high filter pressure. Filter is dirty. Clean filter.
Restriction in return line. Open return line restriction.
Low flow — low filter pressure. Strainer basket or skimmer basket Clean basket.
clogged.
Clogged impeller. Clean obstruction.
Air leak in suction line. Find and fix leak.
Restriction in suction line. Find and open restriction.
Motor does not turn. Power switch is off. Check power switch and reset.
Circuit breaker has tripped. Check circuit breaker and reset;
if retrips contact electrician.
Pump is in off-mode of a timer Check timer mode.
controlled circuit.
Motor terminal connections are incorrect. Have terminal connections checked
by electrician.
Motor shaft is locked by bad bearing. Have motor bearings replaced
or replace pump.
Motor over-heating. Electrical supply connections are Have terminal connections
incorrect. checked by electrician.
Wiring to pump is undersized. Consult electrician to rewire pump.
Power Company supply voltage is low. Notify Power Company.
Ventilation is inadequate for motor. Remove any restrictions to air flow.

P/N 350039 Rev. C 8-24-06 9
SECTION VII. TECHNICAL DATA
REPLACEMENT PARTS
9
7
11
8
4
114
5
12
10
15
2
6
3
13
Item No. Part No. Description
1 357161 Drain Plug, 3 req.
2 354545 Mechanical Seal
3 354552 Impeller 3/4 hp
3 350017 Impeller 1 hp
3 350018 Impeller 1-1/2 hp
4 192115 O-ring, 3 req.
5 357213 Volute & Pot Assembly HD
6 357255 O-ring 2-357, 2 req.
7 357227 Lid
8 357228 Pot & Volute Assembly VD
9 357239 Clamp Ram & Cam
10 357254 1/4-20 Square Nut, 4 req.
11 355667 Basket
12 357215 Seal Plate
13 350103 O-ring
14 98209000 1/4-20 x 1.5 Machine Screw, 4 req.
15 Motor(s)
356597 Motor TB 3 /4 hp–1ph–60hz–115V, w/switch
356595 Motor TB 1 hp–60hz–115V, w/switch
356469 Motor TB 1.5 hp–60hz–230V/115V, wo/switch
356551 Motor TB 1 hp–60hz–115V – 2 spd
356553 Motor TB 1.5 hp–60hz – 2 spd
356436 Motor TB 3/4 hp–60hz–115V, wo/switch
356437 Motor TB 1 hp–60hz–115V, wo/switch
356440 Motor TB 1.5 hp–60hz–115V/230V
39604323 Motor 3/4 hp–48FR–230V–60hz
39604423 Motor 1 hp–48FR–230V–60hz
39607600 Motor 1.5 hp–48FR–230V–60hz
354170 Motor 3/4 hp–230V–50hz
354573 Motor 1 hp–230V–50hz
39604508 Motor 1.5 hp–48FR–230V–50hz

P/N 350039 Rev. C 8-24-06 10
10
9
8
7
6
5
4
3
2
1
REPLACEMENT PARTS (BASE MOUNTED UNITS)
For cord and plug connected
units, the base should be
mounted as shown.
Suction
Vertical
Discharge
7.75"
4.09"
3.50"
7.26"
10.00"
9.33"
Item No. Part No. Description
1 354621 Enclosure Housing
2 356436 Motor 3/4 hp, 48 Frame
2 356437 Motor 1 hp, 48 Frame
2 356440 Motor 1-1/2 hp, 48 Frame
3 354881 Cap, CSA Mtr. Enclsr. w/3 Screws
4 154716 Screw - Self Tapping HH #10, 3 req.
5 155371 Cord - 25 ft. 16 Ga. Power Supply
6 155187 Switch Toggle Double Insulated
7 155193 Conn. #16 Switch
8 354658 Insulated Foam w/Adhsve. Back
9 155109 Nut - T4 Prong
10 153263 Base CSA 4 in. High
DIMENSIONAL DATA

P/N 350039 Rev. C 8-24-06 11
PUMP CURVES
Pentair Pool Products®
OptiFlo®Series 50 Hz Pump Curves
0
5
10
15
20
25
30
35
010
20 30 40 50 60 70 80
Flow Rate in US GPM
Total Dynamic Head in Ft. of Water
METERS OFWATER
CUBIC METERS PER HOUR
3/4 HP
3/4 HP
1 HP
1 HP
1.5 HP
1.5 HP
3/4 HP
1 HP
1.5 HP
0
2
4
6
8
10
0 5 10 15
Pentair Pool Products
®
OptiFlo
®
Series 60 Hz Pump Curves
0
10
20
30
40
50
60
0 102030405060708090100
Flow Rate in U.S GPM
Total Dynamic Head in Ft. of Water
1.5 HP
5 HP
1.0 HP
HP
3/4 HP
HP
1.5 HP
1.0 HP
3/4 HP
METERS OFWATER
CUBIC METERS PER HOUR
0
5
10
15
0 5 10 15 20

P/N 350039 Rev. C 8-24-06 12
ENGINEERING SPECIFICATIONS
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