STA-RITE 5PRA Series Manual de usuario

50 HZ. CENTRIFUGAL PUMPS WITH TRAP

O W N E R’ S M A N U A L

INSTALLATION, OPERATION & PARTS

5PRA Series MODELS

1/2 HP 5PRA5C-180 5PRA5C3-180

3/4 HP 5PRA5D-195 5PRA5D3-195

1 HP 5PRA5E-182 5PRA5E3-182

1-1/2 HP 5PRA5F-184 5PRA5F3-184

5P2RA5YF-182

Sta-Rite Industries, Inc., Export Sales & Marketing Group

293 Wright Street, Delavan, WI 53115 U.S.A.

TELEPHONE: (262) 728-5551, TELEFAX: (262) 728-4461, CABLE: STAREX TELEX: ITT 4970245

S3 (Rev. 9/6/05)

This manual should be furnished to

the end user of this pump; its use

will reduce service calls and chance

of injury and will lengthen pump life.

‘5PRA’ SERIES PUMP WITH TRAP

To avoid unneeded service calls, prevent possible injuries, and get the most

out of your pump, READ THIS MANUAL CAREFULLY!

The Sta-Rite ‘5PRA’ Series Self-priming Centrifugal pump:

• Is designed for use with swimming pools or as a centrifugal pump.

• Is an excellent performer; durable, reliable.

Table of Contents

Safety Instructions ......................................................................................3

Installation...............................................................................................4-5

Electrical.....................................................................................................6

Operation ...................................................................................................7

Storage/Winterizing .................................................................................7-8

Pump Service ..........................................................................................8-9

Troubleshooting Guide .............................................................................10

Repair Parts List...................................................................................11-14

READ AND FOLLOW SAFETY

INSTRUCTIONS!

This is the safety alert symbol. When you see this symbol on your sys-

tem or in this manual, look for one of the following signal words and

be alert to the potential for personal injury.

warns about hazards that will cause death, serious personal

injury, or major property damage if ignored.

warns about hazards that can cause death, serious personal

injury, or major property damage if ignored.

warns about hazards that will or can cause minor personal

injury or property damage if ignored.

NOTICE indicates special instructions not related to hazards.

Carefully read and follow all safety instructions in this manual and on equip-

ment. Keep safety labels in good condition; replace if missing or damaged.

Incorrectly installed or tested equipment may fail, causing

severe injury or property damage.

Read and follow instructions in owner's manual when installing

and operating equipment. Have a trained pool professional per-

form all pressure tests.

1. Do not connect system to a high pressure or city water system.

2. Use equipment only in a pool or spa installation.

3. Trapped air in system can cause explosion. BE SURE all air is out of system

before operating or testing equipment.

Before pressure testing, make the following safety checks:

Check all clamps, bolts, lids, and system accessories before testing.

Release all air in system before testing.

Tighten Sta-Rite trap lids to 30 ft. lbs. (4.1 kg-m) torque for testing.

Water pressure for test must be less than 25 PSI (7.5 kg/cm2).

Water Temperature for test must be less than 100oF. (38oC).

Limit test to 24 hours. After test, visually check system to be sure it is ready

for operation. Remove trap lid and retighten hand tight only.

NOTICE: These parameters apply to Sta-Rite equipment only. For

non-Sta-Rite equipment, consult manufacturer.

Motor normally operates at high temperature and will be too

hot to touch. It is protected from heat damage during operation by an auto-

matic internal cutoff switch. Before handling pump or motor, stop motor and

allow it to cool for 20 minutes.

IMPORTANT

SAFETY

INSTRUCTIONS

Always follow basic safety pre-

cautions with this equipment,

including the following.

To reduce the risk

of injury, do not permit children

to use this product unless they

are closely supervised at all

times.

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 can-

not be readily disassembled for

storage. A storable pool is con-

structed so that it may be readily

disassembled for storage and

reassembled to its original

integrity.

SAVE THESE

INSTRUCTIONS

INSTALLATION

Only qualified, licensed personnel should install pump and wiring.

Pump mount must:

Be solid - Level - Rigid - Vibration free. (To reduce vibration and pipe

stress, bolt pump to mount.)

Allow pump suction 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.

Have adequate floor drainage to prevent flooding.

Be protected from excess moisture.

Allow adequate access for servicing pump and piping.

NOTICE: Use Teflon tape or Plasto-Joint Stik1for making all threaded

connections to the pump. Do not use pipe dope; pipe dope will cause

stress cracking in the pump.

NOTICE: Pump suction and discharge connections have molded in

thread stops. DO NOT try to screw pipe in beyond these stops.

Teflon Taping Instructions:

Use only new or clean PVC pipe fittings.

Wrap male pipe threads with one to two layers of Teflon tape. Cover

entire threaded portion of pipe.

Do not overtighten or tighten past thread stop in pump port!

If leaks occur, remove pipe, clean off old tape, rewrap with one to two

additional layers of tape and remake the connection.

NOTICE: Support all piping connected with pump!

1Lake Chemical Co., Chicago, Illinois

FIGURE 1

Piping:

Use at least 1-1/2" IPS PVC pipe with 5” trap. Use at least 2” pipe with 6”

trap. Increase size if a long run is needed.

To avoid strains on the pump, support both suction and discharge pipes

independently. Place these supports near the pump.

To avoid a strain left by a gap at the last connection, start all piping at the

pump and run pipe away from the pump.

Never use a suction pipe smaller than pump suction connection.

To avoid airlocking, slope suction pipe slightly upward toward the pump.

NOTICE: To prevent flooding when removing pump for service, all flooded

suction systems must have gate valves in suction and discharge pipes.

POOL PUMP SUCTION

REQUIREMENTS

Pump suction is hazardous and can trap and drown or disem-

bowel bathers. Do not use or operate swimming pools, spas, or hot tubs if a

suction outlet cover is missing, broken, or loose. Follow the guidelines

below for a pump installation which minimizes risk to users of pools, spas,

and hot tubs.

Entrapment Protection

The pump suction system

must

provide protection against the hazard of

suction entrapment or hair entrapment/entanglement.

Suction Outlet Covers

All suction outlet covers must be maintained. They must be replaced if

cracked, broken, or missing.

See Page 6 for outlet cover certification requirements.

All suction outlets must have correctly installed, screw-fastened covers in

place.

At Least

3 Feet

Suction Outlet

(Main Drain)

Suction Outlet

(Main Drain)

IAPMO Certified

Anti-entrapment

Cover or Suction Fitting,

screw-fastened to

Main Drain Sump

IAPMO Certified

Anti-entrapment

Cover or Suction Fitting,

screw-fastened to

Main Drain Sump

Pump

Valves OK between

pump and Tee

No valves between

Tee and Main Drains

2762 0197

FIGURE 2– Recommended pump suction layout.

Suction Outlets Per Pump

Provide at least two hydraulically balanced main drains, with covers (see

Page 5), as suction outlets for each circulating pump suction line. The cen-

ters of the main drains (suction outlets) on any one line must be at least

three feet apart.

The system must be built so that it cannot operate with the pump drawing

water from only

one

main drain (that is, there must be at least two main

drains connected to the pump whenever it is running). (See Figure 2).

However, if two main drains run into a single suction line, the single suction

line may be equipped with a valve which will shut off

both

main drains

from the pump (see Figure 2).

More than one pump can be connected to a single suction line as long as

the requirements above are met.

Water Velocity

The maximum water velocity through the suction fitting or cover for any

suction outlet must be 1.5 feet per second unless the outlet and cover com-

ply with the latest ASME/ANSI Specification for

Suction Fittings For Use in

Swimming Pools, Spas, Hot Tubs, and Whirlpool Bathtub Applications.

any case, do not exceed the suction fitting’s maximum designed flow rate.

If 100% of the pump’s flow comes from the main drain system, the maxi-

mum water velocity in the pump suction hydraulic system must be six feet

per second or less even if one main drain (suction outlet) is completely

blocked. The flow through the remaining main drain(s) must comply with

the latest ASME/ANSI Specification for

Suction Fittings For Use in Swimming

Pools, Spas, Hot Tubs, and Whirlpool Bathtub Applications.

Testing and Certification

Suction outlet covers must have been tested by a nationally recognized testing

laboratory and found to comply with the latest ASME/ANSI Specification for

Suction Fittings For Use in Swimming Pools, Spas, Hot Tubs, and Whirlpool

Bathtub Applications.

Fittings:

Fittings restrict flow; for best efficiency use fewest possible fittings (but at

least two suction outlets).

Avoid fittings which could cause an air trap.

Pool fittings must conform to International Association of Plumbing and

Mechanical Officials (IAPMO) standards.

Use only non-entrapping suction fittings or double suction.

ELECTRICAL

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.

To avoid dangerous or fatal electrical shock, turn OFF power to

motor before working on electrical connections.

Ground Fault Circuit Interrupter (GFCI) tripping indicates an electri-

cal problem. If GFCI trips and will not reset, have a qualified

electrician inspect and repair electrical system.

Exactly match supply voltage to nameplate voltage! Incorrect voltage

can cause fire or seriously damage motor and voids warranty.

If in doubt consult a licensed electrician.

Voltage:

Voltage at motor must be not 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.

Hazardous voltage.

Can shock, burn,

or cause death.

Ground pump before

connecting to

power supply.

TABLE I - RECOMMENDED FUSING AND WIRING DATA

5PRA, 5P2RA Series - Single Phase

Motor Branch Fuse Max Load Voltage/ Dist. in Ft. (m) (Serv. to Motor)

H.P. Rating Amps* Amps Hz/Phase 0-100’ (0-30) 101-200’ (31-61) 201-300’ (62-91)

1/2 15 9.4 115/50/1 14 (2) 10 (5.5) 10 (5.5)

3/4 20 12.2 115/50/1 12 (3) 10 (5.5) 8 (8.4)

1 20 14.0 115/50/1 12 (3) 10 (5.5) 8 (8.4)

1-1/2 30 19.4 115/50/1 10 (5.5) 8 (8.4) 6 (14)

1/2 15 4.7 230/50/1 14 (2) 14 (2) 14 (2)

3/4 15 6.1 230/50/1 14 (2) 14 (2) 14 (2)

1 15 7.7 230/50/1 14 (2) 14 (2) 14 (2)

1-1/2 15 9.7 230/50/1 14 (2) 14 (2) 12 (3)

1-1/2 - 1/4 15 8.3/3.0 230/50/1 14 (2) 14 (2) 12 (3)

*Time delay fuses are recommended instead of standard fuses in any motor circuit.

5PRA - Three Phase

Motor Branch Fuse Max Load Voltage/ Dist. in Ft. (m) (Serv. to Motor)

H.P. Rating Amps* Amps Hz/Phase 0-100’ (0-30) 101-200’ (31-61) 201-300’ (62-91)

1/2 15 2.7 220/50/3 14 (2) 14 (2) 14 (2)

3/4 15 3.6 220/50/3 14 (2) 14 (2) 14 (2)

1 15 4.0 220/50/3 14 (2) 14 (2) 14 (2)

1-1/2 15 5.15 220/50/3 14 (2) 14 (2) 14 (2)

1/2 15 1.6 380/50/3 14 (2) 14 (2) 14 (2)

3/4 15 2.1 380/50/3 14 (2) 14 (2) 14 (2)

1 15 2.3 380/50/3 14 (2) 14 (2) 14 (2)

1-1/2 15 3.0 380/50/3 14 (2) 14 (2) 14 (2)

*Time delay fuses are recommended instead of standard fuses in any motor circuit.

Wire

Size

AWG

(mm2)

Wire

Size

AWG

(mm2)

}

Grounding/Bonding:

Install, ground, bond and wire motor according to local or National

Electrical Code requirements.

Permanently ground motor. Use green ground terminal provided under

motor canopy or access plate (See Figure 3A); use size and type wire

required by code. Connect motor ground terminal to electrical service

ground.

Bond motor to pool structure. Use a solid copper conductor, size No. 8

AWG or larger. Run wire from external bonding lug (see Figure 3A) to rein-

forcing rod or mesh.

Wiring:

Pump must be permanently connected to circuit. Table I, Page 7, gives cor-

rect wire and circuit breaker sizes for the pump alone. If other lights or

appliances are also on the same circuit, be sure to add their amp loads to

pump amp load before figuring wire and circuit breaker sizes. (If unsure how

to do this or if this is confusing, consult a licensed electrician.) Use the load

circuit breaker as the master on-off switch.

Install a Ground Fault Circuit Interrupter (GFCI) in circuit; it will sense a

short-circuit to ground and disconnect power before it becomes dangerous

to pool users. For size of GFCI required and test procedures for GFCI, see

manufacturer’s instruction.

In case of power outage, check GFCI for tripping (which will prevent normal

pump operation). Reset if necessary.

NOTICE: If you do not use conduit when wiring motor, be sure to seal wire

opening on end of motor to prevent dirt, bugs, etc., from entering.

Connect dual voltage 115/230V motors to power supply as shown in Figure

3B. Connect single voltage and 3-Phase motors as shown on motor nameplate.

230V

115V

Bonding

Lug

Green

Ground

Screw

FIGURE 3A: Typical ground screw

and bonding lug locations

3914 0301

115 V

230 V

230 Volt to 115 Volt Conversion. Move plug to change voltage.

230

Volts

115

Volts

230 Volt to 115 Volt Conversion. Move plug to change voltage.

Pull plug

straight

out from

terminal

board;

Plug in again

with arrow

on plug

pointing to

'115 Volts'.

Ground

Screw

230

Volts

115

Volts

Clamp the power cable to prevent

strain on the terminals.

Ground

Screw

Clamp the power cable to prevent

strain on the terminals.

Connect the green (or bare copper)

ground wire to the grounding screw.

Connect the green (or bare copper) ground

wire to the green ground screw.

230V

115V

230V

115V

230V

115V

230V

115V

Power Supply

Wires

FIGURE 3B: 115/230V motor wiring connections. Your motor terminal board will look like one of the two shown above.

OPERATION

NEVER run pump dry! Running pump dry may damage seals, causing

leakage and flooding! Fill pump with water before starting

motor.

Before removing trap cover:

1. STOP PUMP before proceeding.

2. CLOSE GATE VALVES in suction and discharge pipes.

3. RELEASE ALL PRESSURE from pump and piping system.

4. NEVER tighten or loosen clamp while pump is operating!

If pump is being pressure tested, be sure pressure has been released

before removing trap cover!

Do not block pump suction! To do so with body may cause severe or

fatal injury. Small children using pool must ALWAYS have close adult

supervision!

Priming Pump:

Release all air from filter and piping system: see filter owner’s manual.

In a flooded suction system (water source higher than pump), pump will

prime itself when suction and discharge valves are opened.

If pump is not in a flooded suction system, unscrew and remove trap cover;

fill trap and pump with water.

NOTICE: Lubricate trap cover O-Ring with petroleum jelly each time it is

removed.

Clean and inspect O-Ring; reinstall on trap cover.

Replace trap cover on trap; turn clockwise to tighten cover.

NOTICE: Tighten trap cover by hand only (no wrenches)! Use a wrench

only if necessary to remove lid!

Pump should prime now. Priming time will depend on vertical length of suc-

tion lift and horizontal length of suction piping.

If pump does not prime, make sure that all valves are open, suction pipe end

is under water, and that there are no leaks in suction pipe. See

Troubleshooting Guide, Page 12.

Storage/Winterizing:

Explosion hazard. 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.

NOTICE: Allowing pump to freeze will damage pump and void warranty!

NOTICE: Do not use anti-freeze solutions (except propylene glycol) 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, Page 10).

Keep motor dry and covered during storage.

To avoid condensation/corrosion problems, do not cover pump with plastic.

For outdoor/unprotected installations:

1. Enclose entire system in a weatherproof enclosure.

2. To avoid condensation/corrosion damage, allow ventilation; do not

wrap system in plastic.

3. Use a 40% propylene glycol/60% water solution to protect pump to -50°F.

4. Gravity drain system as far as possible.

5. Potect areas which retain water with non-toxic propylene glycol

antifreeze (“RV antifreeze”).

Hazardous suction.

Can trap hair or

body parts, causing

severe injury

or death.

Do not block

suction.

Draining Pump:

1. Pump down water level below all inlets to the pool.

To avoid dangerous or fatal electrical shock hazard, turn OFF power

to motor before draining pump.

2. Remove trap cover and use low pressure air to blow accumulated water

from the piping system. Use a Sta-Rite U79-11 Lid Wrench to remove trap

covers that have been overtightened or have taken a set and cannot be

removed by hand.

3. Cap inlet piping after draining to keep water out of the pipes.

4. To prevent pump from freezing, remove trap cover and drain the tank

body through the drain plug (Key No. 15, Page 13). Clean pump thor-

oughly; replace trap cover.

NOTICE: Tighten trap cover by hand only (no wrenches)! Use a wrench

only if necessary to remove cover!

5. Be sure motor is kept dry and covered.

Startup For Winterized Equipment:

1. Remove any temporary weather protection placed around system for shut-

down.

2. Follow filter manufacturer’s instructions for reactivation of the filter.

3. Inspect all electrical wiring for damage or deterioration over the shutdown

period. Have a qualified serviceman repair wiring as needed.

4. Inspect and tighten all watertight connections.

5. Open all valves in suction and return piping.

6. Remove any winterizing plugs in piping system.

7. Drain all antifreeze from system.

8. Close all drain valves and replace all drain plugs in piping system.

9. Prime pump according to instructions on Page 9.

PUMP SERVICE

Pump should only be serviced by qualified personnel.

Be sure to prime pump (Page 9) before starting.

Before removing trap cover:

1. STOP PUMP before proceeding.

2. CLOSE GATE VALVES in suction and discharge pipes.

3. RELEASE ALL PRESSURE from pump and piping system.

4. NEVER tighten or loosen clamp while pump is operating!

To avoid dangerous or fatal electrical shock hazard, turn OFF power

to motor before working on pump or motor.

Aside from lubricating trap cover O-Ring, no lubrication or regular mainte-

nance is needed beyond reasonable care and periodic cleaning.

If shaft seal is worn or damaged, repair as follows:

Pump Disassembly/Removing Old Seal:

Disconnect power to pump motor.

Be sure gate valves on suction and return piping are closed before starting

work.

Release all pressure by opening all vents before starting work.

1. Drain pump by removing drain plugs on bottom of pump body and trap

body.

2. Be sure there is no pressure in trap body; remove cover (unscrew by turn-

ing counterclockwise).

FIGURE 4

Hazardous voltage.

Can shock, burn,

or cause death.

Disconnect power

before working

on pump or motor.

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