WG50 & WG50H - Pentair Water Literature
Contents
1. WG30 50 35 CORD ASSEMBLY 8 4 SOOW 22569B032 WG30 50 35 CORD ASSEMBLY 8 4 W 22569B102 CONNECTOR 12672A003 PIPE PLUG 1 4 NPT HEX HD 05022A092 O RING 4 7 8 x 4 5 8 x 1 8 05876A123 CAP SCREW HEX HD 7 16 14 x 1 1 2 CAP UPPER BEARING 19102A006 22590B000 O RING 5 1 2 x 5 1 4 x 1 8 05876A112 MACHINE SCREW 10 24 x 3 8 LG 05434A043 ENS PI NI ENCRES EE RQ ES PCR ETC re re Er LOCKWASHER 10 06107A015 TUBE PLASTIC 1 1 4 LG 10649A102 TUBE PLASTIC 3 LG 10649A116 G HOUSING MOTOR 22571D000 WASHER SUPPORT 05030A215 CAP SCREW SOCKET HD 3 8 16 x 1 1 4 06106A027 Of LUBRICANT NEVER SEEZ CAT NO NSBT 8 8 OZ CAN 22386A000 GASKET VELLUMOID 22581A000 CASE VOLUTE 22582D000 MACHINE SCREW SOCKET FLAT HD 5 16 18 x 1 1 4 07597A021 RING RETAINING 12558A025 RETAINER IMPELLER MACHINE SCREW SOCKET FLAT HD 5 16 18 x 1 22585A000 07597A017 WASHER FINGER SPRING 19331A006 BEARING BALL 08565A022 ROTOR W SHAFT See Chart SHAFT ONLY FOR ALL 3 amp 5 HP UNITS 22573C200 STATOR See Chart BEARING BALL 08565A023 HOUSING SEAL 22576D010 SEAL 1 1 4 SHAFT 22577A000 RING RETAINING 12558A008 O RING 7 x 6 3 4 x 1 8 05876A114 ELECTRODE WIRE 22578A100 SEAL LEAK 25343A100 CAP2. corrosive elements Three phase motors are generally used for commercial and industrial service but single phase motors are available where 3 phase cannot be obtained especially in rural areas Transformers must be large enough to maintain full voltage for single phase Low voltage on large single phase motors can cause considerable trouble and motors are not guaranteed to operate on low voltage All single phase motors must have a special electrical control box furnished by Myers INSTALLING SINGLE PHASE MOTORS WITH CONTROLS OTHER THAN MYERS VOIDS ALL WARRANTIES Pump motor chamber and seal chamber are oil filled for long life and best heat transfer The seal chamber is provided with an electrode to give a signal to control panel if water enters the seal chamber due to worn or faulty lower seal Motor is provided with a heat sensor that automatically stops motor if overheating occurs for any reason This sensor resets as soon as motor temperature drops to safe range Additional overload heaters are used in the control box to trip under overload conditions Motor Cords Each pump motor has two cords one large power cord and one small control cord 13800A876 12 13 12 Both cords are the same for single and three phase The wires are color coded blue black red and green For 3 phase the blue black and red lines are power lines and the green is ground For single phase the black and blue lines are power and the red is for
3. 13 12 STANDARD LIMITED WARRANTY Pentair Myers warrants its products against defects in material and workmanship for a period of 12 months from the date of shipment from Pentair Myers or 18 months from the manufacturing date whichever occurs first provided that such products are used In compliance with the requirements of the Pentair Myers catalog and technical manuals for use in pumping raw sewage municipal wastewater or similar abrasive free noncorrosive liquids During the warranty period and subject to the conditions set forth Pentair Myers at its discretion will repair or replace to the original user the parts that prove defective in materials and workmanship Pentair Myers reserves the right to change or Improve its products or any portions thereof without being obligated to provide such a change or improvement for prior sold and or shipped units Start up reports and electrical schematics may be required to support warranty claims Submit at the time of start up through the Pentair Myers website http forms pentairliterature com startupform startupform asp type m Warranty is effective only if Pentair Myers authorized control panels are used All seal fail and heat sensing devices must be hooked up functional and monitored or this warranty will be void Pentair Myers will cover only the lower seal and labor thereof for all dual seal pumps Under no circumstance will Pentair Myers be responsible for the cost of field labor travel
4. SCREW HEX HD 7 16 14 x 2 1 4 19102A023 HOUSING LOWER SEAL W BEARING O RING 6 x 5 3 4 x 1 8 22580C000 05876A113 CAP SCREW HEX HD 7 16 14 x 1 1 4 06106A063 IMPELLER PUMP 3 HP 22583B010 IMPELLER PUMP 5 HP 30 22583B000 IMPELLER GRINDER 22584C000 RING SHREDDING 22586B000 CAP SCREW HEX HD 3 8 16 x 1 19101A010 CLAMP SHREDDING RING p lh Es lach lech 1 Es ech b i lech ch IA Lech Lech lh Lech pp 22587C000 00000 Gi Pump Cat No 3 Rotor w Shaft Stator Only Stator w Housing 225720103 22574C218 22571D44SK 22572C103 22574C200 22571D220K 22572C102 22574C201 22571D225K 22572C102 22574C202 225710231K 22572C102 22574C202 22571D231K 22572C102 22572C103 22574C204 22574C218 22571D240K 22571D445K 22572C103 22574C200 225710220K 22572C102 22574C201 22571D225K 22572C102 22574C202 225710231K 22572C102 22574C202 22571D231K 22572C102 13800A876 12 13 12 22574C204 22571D240K WG30H WG50H amp WG75H SUBMERSIBLE GRINDER PUMPS Covers 3 amp 5 HP 1 amp 3 Phase amp 7 1 2 HP 3 Phase Ref No Description WG30H 50H 75H 35 CORD ASSEMBLY 14 4 Part No 22569B104 WG30H 50H 35 CORD ASSEMBLY 10 4 22569B031 WG30H 50H 75H 35 CORD ASSEMBL
5. set on scale to read directly in ohms REPLACING GRINDER IMPELLER AND GRINDER SHREDDING RING This is the only disassembly operation allowed in the field All other repairs must be done at the factory or at an authorized service facility IMPORTANT Pump should be thoroughly cleaned of trash and deposits before starting disassembly operations CAUTION DISCONNECT ALL POWER AND CONTROL WIRES TO MOTOR AT CONTROL PANEL BEFORE STARTING DISASSEMBLY OPERATION NEVER RELY ON OPENING CIRCUIT BREAKER ONLY DISASSEMBLY OF SHREDDING RING AND IMPELLER 1 Remove screws from holding ring and remove ring 2 Use two screwdrivers one each on opposite sides of ring and pry off snap ring that holds shredding ring in place Remove shredding ring 3 Hold impeller by prying against impeller cutting bar and remove cap screw from end of shaft 4 Use large screwdriver in slot in end of shaft and bump on cutter vane with plastic hammer Bump in counterclockwise direction as thread is right hand It may take several bumps to loosen impeller If impeller cannot be loosened it will be necessary to take unit to service facility for service DON T CONTINUE TO POUND ON IMPELLER AS IMPELLER AND SHAFT CAN BE DAMAGED 5 If impeller comes off easily clean up and replace if worn 6 Be sure pump impeller has not loosened when grinder impeller is removed This can be checked on reassembly of grinder impeller and shredding ring Tips of impell
6. 9A102 TUBE PLASTIC 3 LG 10649A116 HOUSING MOTOR 22571D000 WASHER SUPPORT 05030A215 CAP SCREW SOCKET HD 3 8 16 x 1 06106A028 LUBRICANT NEVER SEEZ 22386A000 SH CAT NO NSBT 8 8 OZ CAN GASKET VELLUMOID 05231A078 CASE VOLUTE 22639D000 MACHINE SCREW SOCKET FLAT HD 07597A021 5 16 18 x 1 1 4 RING RETAINING 12558A025 RETAINER IMPELLER 22585A000 MACHINE SCREW SOCKET FLAT HD 07597A017 5 16 18 x 1 WASHER FINGER SPRING 19331A006 2 ERS Pump Cat No 3 Rotor w Shaft Stator Only Stator w Housing WG30H 21 226360101 22574C210 22571D245K WG30H 03 22636C100 225740211 22571D250K WG30H 23 22636C100 22574C212 22571D255K WG30H 43 22636C100 22574C212 22571D255K WG30H 53 WG50H 21 22636C100 22636C103 22574C214 22574C200 22571D265K 22571D220K WG50H 03 22636C102 22574C201 22571D225K WG50H 23 22636C102 22574C202 22571D231K WG50H 43 WG50H 53 WG75H 03 22636C102 22636C102 22636C102 22574C202 22574C204 22574C201 22571D231K 22571D240K 22571D225K WG75H 23 22636C102 22574C202 22571D231K WG75H 43 22636C102 22574C202 22571D231K WG75H 53 22636C102 22574C204 22571D240K Effective after Sept 1 1990 New impeller and ring are interchangeable with previous impeller and ring 13800A876 12
7. Eh PENTAIR 4 MYERS HIGH CAPACITY HIGH HEAD GRINDER PUMP GRINDER PUMP WG WGH MODELS W630 WG504 W6oU WG5 R and W6 dr GRINDER PUMPS INSTALLATION AND SERVICE MANUAL NOTE To the installer Please make sure you provide this manual to the owner of the equipment or to the responsible party who maintains the system Part 13800A876 2012 Pentair Pump Group Inc 12 13 12 Pump Models The 3 5 and d HP grinder pumps are made in two models WG and WGH Both series are made for single phase 230 volts and three phase for 200 230 460 and 575 volts Instructions These instructions cover only the pump unit Other instructions for lift out rail system and electrical controls are included with those items Complete disassembly instructions are furnished only to authorized service stations CAUTION PUMP IS NOT TO BE DISASSEMBLED IN THE FIELD EXCEPT AT AN AUTHORIZED SERVICE STATION OR AT THE MYERS FACTORY WARRANTY IS VOID IF PUMP IS TAKEN APART FOR ANY REASON EXCEPT TO REPLACE GRINDER IMPELLER AND GRINDER RING CALIFORNIA PROPOSITION 65 WARNING WARNING This product and related accessories contain chemicals known to the State of California to cause cancer birth defects or other reproductive harm These pumps are designed for the rugged service of grinding and pumping commercial and industrial sewage They are not intended for pumping heavy slurries or liquids containing abrasives or
8. RTY DAMAGE MAY RESULT FROM IMPROPER INSTALLATION PENTAIR MYERS DISCLAIMS ALL LIABILITY INCLUDING LIABILITY UNDER THIS WARRANTY FOR IMPROPER INSTALLATION PENTAIR MYERS RECOMMENDS INSTALLATION BY PROFESSIONALS Some states do not permit some or all of the above warranty limitations or the exclusion or limitation of incidental or consequential damages and therefore such limitations may not apply to you No warranties or representations at any time made by any representatives of Pentair Myers shall vary or expand the provision hereof gt PENTAIR MYERS 1101 MYERS PARKWAY 490 PINEBUSH ROAD UNIT 4 ASHLAND OHIO USA 44805 CAMBRIDGE ONTARIO CANADA NIT 0A5 419 289 1144 800 363 PUMP WWW FEMYERS COM Warranty Rev 12 13
9. Y 8 4 SOOW 22569B032 WG50H 35 CORD ASSEMBLY 8 4 W 22569B102 CONNECTOR 12672A003 PIPE PLUG 1 4 NPT HEX HD 05022A092 O RING 4 7 8 x 4 5 8 x 1 8 05876A123 CAP SCREW HEX HD 7 16 14 x 1 1 2 CAP UPPER BEARING 19102A006 22590B000 BEARING BALL 08565A022 ROTOR W SHAFT See Chart SHAFT ONLY FOR ALL 3 5 7 1 2 HP UNITS 226360102 STATOR See Chart BEARING BALL 08565A023 HOUSING SEAL 22576D010 SEAL 1 1 4 SHAFT 22577A000 RING RETAINING 12558A008 O RING 7 x 6 3 4 x 1 8 05876A114 ELECTRODE WIRE 22578A100 SEAL LEAK 25343A100 CAP SCREW HEX HD 7 16 14 x 2 1 4 19102A023 HOUSING LOWER SEAL W BEARING O RING 6 x 5 3 4 x 1 8 22638C000 05876A113 CAP SCREW HEX HD 7 16 14 x 1 1 4 06106A063 IMPELLER PUMP 3 HP 22640C002 IMPELLER PUMP 5 HP 22640C003 IMPELLER PUMP 7 1 2 HP 22640C001 IMPELLER GRINDER 26010B000 RING SHREDDING 25134B000 CAP SCREW HEX HD 3 8 16 x 1 19101A010 CLAMP SHREDDING RING P lach lech Lech Lech l F lo lb lh lt IA lach ech Lech Lech lech lech Ib l pw 22643B000 0 RING 5 1 2 x 5 1 4 x 1 8 05876A112 8 MACHINE SCREW 10 24 x 3 8 LG 05434A043 Ke LOCKWASHER 10 06107A015 TUBE PLASTIC 1 1 4 LG 1064
10. er cutter vanes should extend about 1 8 below bottom of shredding ring If more than 1 8 extends below ring it means pump impeller has loosened Remove grinder impeller and ring remove bolts from pump case and remove case Use back off screws in motor mounting plate to pry loose from pump case 7 After case is removed wrap emery paper around shaft and hold with vise grip pliers Use cloth on impeller and screw up against shroud Now pump can be reassembled 8 Clean all threads with wire brush and file smooth any threads that may be nicked 9 Use graphite compound on threads before replacing grinder impeller 10 Be sure cap screw in bottom of shaft is tight Hold impeller with screwdriver between cutter bar and teeth of shredding ring while tightening cap screw 11 Be sure impeller turns free by hand after reassembly Some drag will occur due to seals but there should be no binding or tight spots when turning the grinder impeller 12 ALWAYS use a rag on the impellers when turning to prevent cutting hands on the sharp corners of shredding ring 13800A876 12 13 12 PUMP TROUBLESHOOTING TROUBLE CHECK LIST Troubles listed are generally caused by the pump Other troubles can occur from faulty control box operation These will be listed with the control box instructions Pump runs but does not pump liquid from base 1 Pump impeller may be air locked this occasionally occurs on a new installation Start and stop
11. er may be rubbing on grinder ring due to bent shaft or misalignment Grease and solids have accumulated around pump and will not pump out of basin 1 Lower weight of level switch may be set too high Set bottom of lower weight even with bottom of inlet flange to grinder 2 Run pump on Hand operation for several minutes with small amount of water running into basin to clean out solids and grease This allows pump to break suction and surge which will break up the solids If level switch lower weight is set properly this condition generally will not occur 3 Trash may have accumulated around lower weight causing pump to turn off too soon Clean trash from weight and suspension cable CONTROL CORD gt POTTING RESIN SPLICES CONNECTORS O O HEATSENSOR ELECTRODES STATOR ON STATOR 230 VOLT THREE PHASE ELECTRODES STATOR O O HEAT SENSOR ON STATOR 230 VOLT SINGLE PHASE WIRING DIAGRAMS CONTROL SS CORD POTTING RESIN SPLICES CONNECTORS O O HEAT SENSOR ELECTRODES STATOR ON STATOR 460 VOLT THREE PHASE 8 GROUND SCREW O O HEATSENSOR ELECTRODES STATOR ON STATOR 200 OR 575 VOLT THREE PHASE 13800A876 12 13 12 Ref No WG30 amp WG50 SUBMERSIBLE GRINDER PUMPS PARTS LIST Covers 3 amp 5 HP 1 amp 3 Phase For pumps manufactured after March 1986 Description WG30 35 CORD ASSEMBLY 14 4 Part No 22569B104 WG30 50 35 CORD ASSEMBLY 10 4 22569B031
12. expenses rented equipment removal reinstallation costs or freight expenses to and from the factory or an authorized Pentair Myers service facility This limited warranty will not apply a to defects or malfunctions resulting from failure to properly install operate or maintain the unit in accordance with the printed instructions provided b to failures resulting from abuse accident or negligence c to normal maintenance services and parts used in connection with such service d to units that are not installed in accordance with applicable local codes ordinances and good trade practices e if the unit is moved from its original installation location f if unit is used for purposes other than for what it is designed and manufactured g to any unit that has been repaired or altered by anyone other than Pentair Myers or an authorized Pentair Myers service provider h to any unit that has been repaired using non factory specified OEM parts Warranty Exclusions PENTAIR MYERS MAKES NO EXPRESS OR IMPLIED WARRANTIES THAT EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF PENTAIR MYERS SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ANY PARTICULAR PURPOSE Liability Limitation IN NO EVENT SHALL PENTAIR MYERS BE LIABLE OR RESPONSIBLE FOR CONSEQUENTIAL INCIDENTAL OR SPECIAL DAMAGES RESULTING FROM OR RELATED IN ANY MANNER TO ANY PENTAIR MYERS PRODUCT OR PARTS THEREOF PERSONAL INJURY AND OR PROPE
13. gain after short run pump has some damage and must be removed from basin for checking 2 Trouble may be from clogged grinder causing motor to overload or could be from failed motor 3 Trouble may be from faulty component in control box Always check control box before removing pump 13800A876 12 13 12 Yellow run light stays on continuously 1 Indicates H O A switch may be in the Hand position 2 Level control switch may have failed causing pump to continue to operate when water is below lower weight or lower weight may have dropped off 3 Grinder assembly may be partially clogged causing pump to operate at much reduced capacity 4 Gate valve or check valve may be clogged causing low pump flow 5 Pump may be air locked Circuit breaker trips 1 Reset breaker by pushing clear down on handle then back to On position If breaker trips again in few seconds it indicates excessive load probably caused by a short in the motor or control box Check out instructions given with control box before pulling pump 2 If this condition happens after an electrical storm motor or control box may be damaged by lightning 3 Resistance reading of the motor with lead wires disconnected from the control box can determine if trouble is in motor or control box Pump is noisy and pump rate is low 1 Grinder assembly may be partially clogged with some foreign objects causing noise and overload on the motor 2 Grinder impell
14. on is wrong interchange any two line leads at control box CAUTION Keep hands completely away from grinder impeller when making this check Disconnect line leads from panel and mark wires so they can be reconnected in same manner as used for test Three Phase Control Box Any suitable three phase control equipment can be used for simplex or duplex operation These control boxes are also available from Myers If other than Myers box is used overoad heaters must be selected in accordance with full load amp ratings Single Phase Control Box Single phase pumps must use the Myers control box Warranty is void if non Myers single phase control box is used CHECK LIST IF PUMP DOES NOT OPERATE PROPERLY Checking for Moisture in Motor Use ohmmeter and set on highest scale Readings on the large power cord between any of the conductors red black blue to green conductor or motor shell should be more than 500 000 ohms Motor probably will run with a lower reading but if pump is out of service and reading is below 500 000 ohms the motor housing and stator should be serviced at an authorized service facility Readings should be taken with line leads disconnected from terminal strip Resistance of Windings Every motor winding has a fixed resistance and winding must check close to the values given to operate properly This winding resistance also shows if motor is connected for voltage being used Use ohmmeter for this test and
15. pump several times to purge air 2 Run additional water into basin so that pump will be submerged deeper to clear air 3 If pump is three phase rotation may be wrong See instructions for checking proper rotation 4 If air does not clear it may be necessary to lift pump out of sealing elbow and start motor to allow pump to pump for a few seconds Air vent hole is provided in pump case so some water will flow from this hole when pump is operating If vent hole gets clogged clean out 5 If pump has been installed for some time and does not pump it may be clogged at grinder inlet 6 Discharge gate valve may be closed 7 Discharge check valve may be clogged or have a broken clapper 8 Discharge head may be too high Check elevation Maximum pump head at zero flow is shown on pump curve sheet 9 If above checks do not locate trouble motor rotor may be loose on shaft which allows motor to run but will not turn impeller or only at low RPM Red light comes on at control box 1 This indicates some water has leaked past the lower seal and has entered the seal chamber and made contact with the electrode probe Pump must be removed from basin immediately for replacement of lower seal This preventive repair will save an expensive motor Overload trips at control box and alarm buzzer or flashing red light comes on due to high water level in basin 1 Push in on red reset button to reset overload If overload trips a
16. start winding and the green is ground Per NEC blue wire may be indicated by blue tape affixed to white wire Any three phase motor can be reversed by interchanging any two line leads Single phase motor is single rotation only Correct motor rotation is counterclockwise when looking at the grinder end of pump The black and blue leads of the control cord connect to heat sensor and the red conductors connect to seal failure green is ground Per NEC blue wire may be indicated by blue tape affixed to white wire All green ground wires connect to screw terminal in motor connection housing and to grounding bar in electrical control box IMPORTANT These ground wires must be connected in control box to grounding bar that is connected to a good outside ground MOTOR IS NOT SAFE UNLESS GROUNDED Installing Pump in Sump These pumps are usually installed in concrete or fiberglass basins with the lift out rail system If pump is not installed with lift out rail system it must be properly supported to discharge pipe so that space is provided under the pump for entrance of sewage Pump inlet should not be closer than 5 inches from bottom of sump Starting Pump After Installing in Sump Basin If pump is 3 phase pump rotation must be checked Before lowering pump into basin connect power lines and start motor using H O A switch in the Hand position Grinder impeller should turn counterclockwise when looking at grinder impeller If rotati
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