MYERS MWH50 Series Installation And Service Manual

MYERS MWH50 Series Installation And Service Manual

Submersible sump, effluent & sewage pumps

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MWH50 - MW200 Series
ME50 - ME150 Series
Submersible Sump,
Effluent & Sewage Pumps
Installation and Service Manual
Single and double seal. Single and three phase power.
Single Seal Pump
Double Seal Pump
ME50S, ME75S
ME50D, ME75D
ME100S, ME150S,
ME100D, ME150D,
MWH50, MW100,
MWH50D, MW100D,
MW150, MW200
MW150D, MW200D
©2012
23833A278 (03/15/12)

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Summary of Contents for MYERS MWH50 Series

  • Page 1 MWH50 - MW200 Series ME50 - ME150 Series Submersible Sump, Effluent & Sewage Pumps Installation and Service Manual Single and double seal. Single and three phase power. Single Seal Pump Double Seal Pump ME50S, ME75S ME50D, ME75D ME100S, ME150S, ME100D, ME150D, MWH50, MW100, MWH50D, MW100D, MW150, MW200...
  • Page 2 Typical Section Drawing For ME/MW50-200 Single Seal Pumps OIL LEVEL 2” NPT...
  • Page 3 Single Seal Repair Parts List Ref. Description Qty. Part Numbers Ref. Description Qty. Part Number Nut, cord plug, solid 25341A002 16 & 17 Stator, Rotor shaft with shell See Chart Washer, 1/32” Thk. 05030A234 Bearing, ball, lower 08565A022 Gasket, Rubber 05014A193 Seal, shaft 25370A000...
  • Page 4 Typical Section Drawing For ME/MW50-200 Double Seal Pumps 2” NPT...
  • Page 5 Double Seal Repair Parts List Ref. Description Qty. Part Number Ref. Description Qty. Part Number Cord, Sensor 25339B000 Bearing, ball, lower 08565A022 Cord, Power See Chart Seal, shaft 25370A000 Screw, drive 05160A004 Ring, retaining 12558A021 Name Plate Ring, retaining 12558A033 Housing, Motor 25327D000 Gasket, tetraseal, 7x6-3/4x1/8...
  • Page 6: Important Safety Instructions

    I mportant Safety G eneral Description And Application Instructions Myers ME and MW series pumps are available in SAVE THESE INSTRUCTIONS - This manual contains both a single seal design and double seal design with important instructions that should be followed during leak detector.
  • Page 7: Motor Type

    2 are highly poisonous. HP. All duplex systems must use pilot mercury control Myers recommends installing ME series effluent switches with control box and magnetic starters. Plug-in pumps with a quick removal system. The quick removal...
  • Page 8 P oints To Check If Pump Does Not Phase Pumps Run Or Does Not Run Properly (1) Myers recommends three phase pumps to be (1) Pump does not run or start when water is up installed by qualified personnel. in tank.
  • Page 9 30” Diameter Simplex ME/MW 1/3 – 2 HP 45º RAIL SUPPORT CONTROL MOUNTING BRACKET, SST JUNCTION BOX 30” DIA. BASIN COVER STRUCT. PLASTIC VALVE EXTENSION HANDLE As Req’d. 1-1/2” CONDUIT REQ’D. LIFT-OUT ROPE AS REQ’D. 2” DISCHARGE 30” DIA. CONCRETE WELL 2”...
  • Page 10 30” Diameter Simplex Union System ME/MW 1/3 - 2 HP 45º CONTROL MOUNTING BRACKET, SST JUNCTION BOX 30” DIA. BASIN COVER STRUCT. PLASTIC 2” UNION, PVC 1-1/2” CONDUIT 2” GATE VALVE, REQ’D. BRASS AS REQ’D. LIFT-OUT ROPE AS REQ’D. 30” DIA. CONCRETE WELL 2”...
  • Page 11 48” Diameter Duplex ME/MW 1/3 – 2 HP CONTROL MOUNTING BRACKET, SST RAIL SUPPORT 45º 48” BASIN COVER W/HINGED HATCH JUNCTION BOX & LOCK HASP EPOXY COATED 1/4” STEEL STRUCT. PLASTIC VALVE EXTENSION HANDLE AS REQ’D. 2” CONDUIT REQ’D. LIFT-OUT ROPE 48”...
  • Page 12 To Replace Capacitors Only T o Replace Power Cord And/Or Seal Leak Detector Cord All of the single phase motors are of the permanent split capacitor type and have no relays or starting (1) Remove motor housing as described above. switch.
  • Page 13: Shaft Seal Replacement

    (12) Replace oil in motor housing and seal chamber. (1) Remove plugs in motor housing and in seal housing Use only Myers submersible oil. (for double seal units) and drain oil. (13) Be sure pump turns freely before connecting to (2) Remove four bolts holding the volute case and power.
  • Page 14 PROBES 9.63 TO AUDIBLE OR (245) VISUAL ALARM Relay: SSAC Inc. #LLC44A5A Socket: Standard 8-pin plug-in type If Myers panel is used see below. Pumps: ME50D-11, ME75D-11 Required Panel: CMEP(SL)-11S, -11SW,-11D, or -11DW Pumps: ME50D-01, ME50D-21, ME75D-01, ME75D-21, ME100D-01, ME100D-21,...
  • Page 15 MW Series Dimensions MW Performance Curve CAPACITY LITERS PER MINUTE CAPACITY GALLONS PER MINUTE...
  • Page 16 Motor Data Chart Winding Resistance In Ohms Start - 1Ø Locked Rotor Main H.P. Speed Volts Phase Stack Height Brn. To Brn. Or Max. Amps Amps Black To White To Red Purple White Black To Red - 3Ø ME Series .9/.8 14.7 12.1...
  • Page 17: Limited Warranty

    Your only remedy, and F.E. MYERS’s only duty, is that F.E. MYERS repair or replace defective products (at F.E. MYERS’s choice). You must pay all labor and shipping charges associated with this warranty and must request warranty service through the installing dealer as soon as a problem is discovered.

This manual is also suitable for:

Mw200 seriesMe150 seriesMe50 series

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