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STA-RITE MPRA6D-146L Installation, Operation & Parts

Dyna-glas and dyna-max centrifugal pumps with integral trap, series mpra, mpea, and mpfa
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DYNA-GLAS
© 2010 Pentair Water Pool and Spa, Inc. All rights reserved.
1620 Hawkins Ave., Sanford, NC 27330 • (919) 566-8000
10951 West Los Angeles Ave., Moorpark, CA 93021 • (805) 553-5000
Customer Suppport: (800) 831-7133
Sta-Rite®, Dyna-Glas™ , Dyna-Max™ and Pentair Water Pool and Spa® is a trademark and/or a registered trademark of Pentair
Water Pool and Spa, Inc. and/or its affiliated companies in the United States and/or other countries. Plasto-Joint Stik® is a registered
trademark of La-Co Industries, Inc. Teflon® is a registered trademark of E.I. Du Pont De Nemours and Company Corporation. 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 partiesor others.
04-15-10
TM
CENTRIFUGAL PUMPS
WITH INTEGRAL TRAP
O
W
N
E
R '
INSTALLATION, OPERATION & PARTS
Series MPRA, MPEA, and MPFA
See Page 2 for Model Numbers
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.
and DYNA-MAX
S
M
A
N
(Unions optional)
TM
U
A
L
S4243 (Rev. A)

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  Summary of Contents for STA-RITE MPRA6D-146L

  • Page 1 Customer Suppport: (800) 831-7133 Sta-Rite®, Dyna-Glas™ , Dyna-Max™ and Pentair Water Pool and Spa® is a trademark and/or a registered trademark of Pentair Water Pool and Spa, Inc. and/or its affiliated companies in the United States and/or other countries. Plasto-Joint Stik® is a registered trademark of La-Co Industries, Inc.
  • Page 2: Table Of Contents

    READ THIS one of the following signal words and be alert to the MANUAL CAREFULLY! potential for personal injury. The Sta-Rite ‘MPRA’, ‘MPEA’ & ‘MPFA’ Series Self- priming Centrifugal pump: warns about hazards that will cause death, serious personal •...
  • Page 3: Installation

    VACUUM before testing. FILTERS • 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/cm PUMP MAY BE BOLTED TO LEVEL...
  • Page 4: Pool Pump Suction Requirements

    pump, use Teflon tape or Plasto-Joint Stik to seal POOL PUMP SUCTION connections. Do not use pipe dope; pipe dope causes REQUIREMENTS cracking in some plastics and may damage components in piping system. Pump suction is When connecting pipe to pump with union half, use hazardous and can trap Teflon tape or Plasto-Joint Stik between pipe and union and drown or disembowel...
  • Page 5: Electrical

    Water Velocity ELECTRICAL The maximum water velocity through the suction fitting Ground motor before connecting to electrical or cover for any suction outlet must be 1.5 feet per power supply. Failure to ground motor can cause severe or fatal electrical shock hazard. second unless the outlet complies with the latest ASME/ANSI Specification for Suction Fittings For Use in Do not ground to a gas supply line.
  • Page 6 Grounding/Bonding install the motor end cover and all other wiring covers before turning on the power. Install, ground, bond and wire motor according to local or National Electrical Code requirements. Motor Switch Settings Permanently ground motor. Use green ground terminal Dual-voltage motors (motors that can operate at either provided under motor canopy or access plate (See 115 or 230 volts), are set at the factory to 230 volts.
  • Page 7: Operation

    3. Move and attach the plug at the 115 volt position. If pump is being pressure tested, be sure pressure The plug will now cover 2 metal tabs. The arrow on has been released before removing trap cover. the plug will point to 115V.4. Attach the power lead wires to the power lead terminals.
  • Page 8 TABLE I - RECOMMENDED CIRCUIT BREAKER AND WIRING DATA Serv. to Motor - Dist. in Ft. (M) Motor Branch CB Max Load Voltage/ 0-100' 101-200' 201-300' Rating Amps Amps Hz/Phase (0-30) (30-60) (60-90) MPRA SERIES – SINGLE SPEED 20/15 13.4/6.7 115/230/60/1 12/14(3/2) 10/14(5.5/2) 8/14(8.4/2) 20/15 15.3/7.6...
  • Page 9: Storage/Winterizing

    Pump should prime now. Priming time will depend on compressed air can cause components to explode, with vertical length of suction lift and horizontal length of risk of severe injury or death to anyone nearby. Use only suction piping. a low pressure (below 5 PSI), high volume blower when air purging the pump, filter, or piping.
  • Page 10: Pump Service

    Pump should only be serviced by qualified personnel. 7. Unscrew impeller from shaft (turn counterclockwise when facing it). For best results, use only genuine Sta-Rite factory NOTICE: On 2 HP model, remove impeller screw parts. (left hand thread - turn clockwise) and gasket Be sure to prime pump (Page 9) before starting.
  • Page 11: Troubleshooting

    Pump Reassembly/Installing New Seal 11. Prime pump according to instructions on Page 9. 1. Ceramic seat must be clean and free of dirt, grease, TROUBLESHOOTING dust, etc. Wet outer edge with small amount of GUIDE liquid detergent; press ceramic seat into seal plate Read and understand safety and operating cavity firmly and squarely with finger pressure (Figure 11).
  • Page 12: Repair Parts List

    Single Speed and Two Speed Box A Box A 1169 0794 Model No. Motor (Key No. 1) Box A Single Speed 115/230/60/1 For quick disconnect pipe MPRA6D-146L A100DLL connections, purchase separately: MPRA6E-147L A100ELL Pkg. 188 2" Slip 1/2 Union Kit MPRA6F-148L 1-1/2 A100FLL...
  • Page 13: Repair Parts List

    3/4 through 2-1/2 HP Models Single Speed and Two Speed MPEA6F-148L MPFA6F-147L MPEA6G-155L MPFA6D-176L MPEA6E-147L MPRA6F-148L MPRA6G-155L MPEA6D-146L MPFA6E-146L MPRA6F-148LC MPR6G-155LC MPEAA6G-168L MPRA6D-146L MPRA6E-147L MPRA6YF-174L MPEA6YG-175L MPEAA6YG 168L Part MPRA6D-146LC MPRA6E-147LC MPRA6YF-174LS MPEA6YG-175LS MPEAA6YG 168LS Description Qty. 3/4 HP 1 HP...
  • Page 14: Troubleshooting Guide

    Electrical: 10. Pump may be running too slowly; check voltage at motor terminals and at meter while pump is running. If low, see wiring instructions or consult power company. Check for loose connections. 11. Pump may be too hot. A. Check line voltage; if less than 90% or more than 110% of rated voltage consult a licensed electrician.
  • Page 16: Warranty

    *S243* S243 (Rev.A) 04-15-10...