Pentair Sta-Rite MPRA, Sta-Rite MPE User Manual

DYNA-PRO

TM

CENTRIFUGAL PUMPS

WITH INTEGRAL TRAP

O W N E R’ S M A N U A L

(Unions optional)

INSTALLATION, OPERATION & PARTS

Series MPRA, MPEA, and MPE

See Page 3 for Model Numbers

This manual should be furnished to
the end user of this pump; its use will
reduce service calls and chance of

Pentair Water Pool and Spa, Inc.

Sanford, N.C., Moorpark, CA, USA
Ontario, Canada
Herentals, Belgium S771 (Rev. B 2/8/08)

injury and will lengthen pump life.

2

Technical Support

Sanford, North Carolina (8 A.M to 5 P.M.)

Phone: [phone]

Moorpark, California (8 A.M to 5 P.M.)

Phone: [phone]

Fax: [phone]

Websites: visit www.pentairpool.com and staritepool.com

© 2008 Pentair Water Pool and Spa, Inc. All rights reserved.

This document is subject to change without notice.

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

Trademarks and disclamers: Sta-Rite® and Dyna-Pro™ are trademarks and/or registered trademarks of Pentair Water Pool and Spa, Inc. and/or
its affiliated companies in the United States and/or other counties. Teflon® is a registered trademark of E.I. Du Pont De Nemours and Company
Corporation and Plasto-Joint Stik® is a registered trademark of La-Co Industries, Inc. Unless noted, names and brands of others that may be used
in this document are not used to indicate an affiliation or endorsement between the proprietors of these names and brands and Pentair Water
Pool and Spa, Inc. Those names and brands may be the trademarks or registered trademarks of those parties or others.

P/N S771 Rev B 2/8/08

3

‘MPRA’, ‘MPEA’ & ‘MPE’

Single Speed Models

HP MPRA MPE, MPEA

1/2 MPE6C-204L
3/4 MPRA6D-204L MPEA6D-204L, MPE6D-205L

1 MPRA6E-205L MPEA6E-205L, MPE6E-206L

1-1/2 MPRA6F-206L MPEA6F-206L, MPE6F-207L

2 MPRA6G-207L MPEA6G-207L, MPE6G-208L

2-1/2 MPEAA6G-208L

Two Speed Models

HP MPRA MPE, MPEA

1-1/2 MPRA6YF-206L MPE6YF-207L

2 MPEA6YG-207L, MPE6YG-208L

2-1/2 MPEAA6YG-208L

SERIES PUMPS 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 ‘MPRA’, ‘MPEA’ & ‘MPE’ Series Self-priming
Centrifugal pump:

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

READ AND FOLLOW
SAFETY INSTRUCTIONS!

This is the safety alert symbol. When you see this

symbol on your system or in this manual, look for
one of the following signal words and be alert to the po­tential for personal injury.

warns about hazards that will cause death,

serious personal injury, or major property damage

if ignored.

• Is an excellent performer; durable, reliable.

Table of Contents

Safety Instructions .....................................................3-4

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

Pool Pump Suction Requirements ..............................6-6

Electrical ...................................................................6-8

Operation.....................................................................9

Storage/Winterizing ...................................................9-10

Pump Service ..........................................................10-11

Troubleshooting Guide ...............................................12

Repair Parts List .....................................................13-14

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 equipment. 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 perform all pressure tests.

4

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.

• Water pressure for test must be less than 25 PSI

(7.5 kg/cm

2

).

• 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, see Figure 1.

NOTICE: These parameters apply to Sta-Rite equipment
only. For non-Sta-Rite equipment, consult manufacturer.

NOTICE: Do not start the pump until the strainer basket
cover is on and the tab, or rib, on the discharge port
aligns between the arrows.

IMPORTANT SAFETY

P

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Arrows

Ta b

Discharge
Por t

Figure 1 – Strainer basket cover alignment.

INSTALLATION

Only qualified, licensed personnel should install pump
and wiring.

Discharge Port
to Filter or Pool

Bonding Lug

Strainer Basket

Cover

Suction

Por t
from

Pool or

Vacuum

Filters

INSTRUCTIONS

Always follow basic safety precautions 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 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.

SAVE THESE
INSTRUCTIONS

Pump may be bolted to level

foundation or mounting bracket.

Figure 2

NOTICE: Port threads are: Internal - 2" NPT for direct connec-

tion to pipe. External - 3-1/4" Buttress. Fits Sta-Rite U11-200P
Union Collar for quick disconnect pipe connection.

See Page 13 for Union Kits.

Pump mount must:

Be located away from corrosive or flammable liquids.
Have enough ventilation to maintain air temperature at less

than the maximum ambient temperature rating (Max. Amb.)
listed on the motor model plate. If this pump is installed in
an enclosure/pump house, the enclosure must have ade­quate ventilation and air circulation to keep the tempera­ture in the enclosure at or below the motor’s rated ambient
temperature whenever the pump is running.

Be solid - Level - Rigid - Vibration free. (To reduce vibra­tion and pipe stress, bolt pump to mount.)

5

Allow pump suction inlet height to be as close to water
level as possible. Pump will not lift water more than

10' (3m).

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.

Fire and burn hazard. Modern motors run at

high temperatures. To reduce the risk of fire, do not allow
leaves, debris, or foreign matter to collect around the
pump motor. To avoid burns when handling the motor, let
it cool for 20 minutes before trying to work on it.

NOTICE: When connecting threaded pipe directly to pump,

use Teflon® tape or Plasto-Joint Stik®

not use pipe dope; pipe dope causes cracking in some plas­tics and may damage components in piping system.

When connecting pipe to pump with union half, use

Teflon® tape or Plasto-Joint Stik® between pipe and union

adapter. Union collar to pump should be assembled dry
and hand-tight.

NOTICE: Pump suction and discharge connections have
molded in thread stops. DO NOT try to screw pipe in be­yond these stops.

to seal connections. Do

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!

Piping:

Use at least 2" (51mm) pipe. 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.

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 haz-

ardous and can trap and
drown or disembowel
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

Hazardous suction.
Can trap hair or
body parts, causing
severe injury
or death.

Do not block
suction.

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.

Suction Outlets Per Pump (Figure 3, Page 6)

Provide at least two hydraulically balanced main drains,
with covers, as suction outlets for each circulating pump
suction line. The centers of the main drains (suction outlets)
on any one suction 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
is, there must be at least two main drains connected to

the pump whenever it is running – see Figure 3, Page 6).

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
Figure 3).

More than one pump can be connected to a single suc­tion line as long as the requirements above are met.

both

which minimizes risk to users
of pools, spas, and hot tubs.

Entrapment Protection

The pump suction system

must

provide protection
against the hazard of

one

main drain (that

main drains from the pump (see