models 4vc(x*) - Pentair Water Literature
Contents
1. WARNING Disconnect pump from power source before servicing or handling pump Disassembly 1 With the pump located in a secure place remove the bolts fastening the seal housing to the volute The motor and impeller can now be removed as a unit N Lay the unit down on its side If the lower seal is to be removed it is recommended that the oil in the seal chamber be drained This can be done by removing the lower seal chamber plug and draining the oil into a holding container 3 To remove the impeller Using a proper wrench the impeller retaining bolt and washer must be removed This may require a piece of wood placed between the vanes to keep the impeller from rotating while removing the bolt Once the bolt has been removed tap lightly with a hammer around the outside diameter of the impeller to loosen from shaft and key After removing impeller the seal retainer needs to be removed to expose seal Caution The impeller is large and heavy and will need to be supported 4 If the lower seal needs removed first remove the compression spring that rides between the impeller and the seal assembly Next take a pair of screwdrivers and remove the compression ring that surrounds the rubber bellows on the rotating portion of the seal assembly Again using the screwdrivers pry the remaining portion of the rotating seal assembly off the shaft The ceramic stationary can be removed by placing a screwdriver between the rubber an2. should be applied to the bolts Install and tighten WIRING DIAGRAMS CONTROL CONTROL CONTROL CORD CORD CORD CORD CORD POTTING POTTING POTTING RESIN TERMINAL HEAT SENSOR HEAT SENSOR HEAT SENSOR ON STATOR ON STATOR ON STATOR 1 ELECTRODE ELECTRODE a STATOR Du STATOR E PROBE TEST RESISTOR PROBE TEST RESISTOR PROBE TEST RESISTOR ON HAZARDOUS LOCATION ONLY ON HAZARDOUS LOCATION ONLY ON HAZARDOUS LOCATION ONLY 230 VOLT THREE PHASE 460 VOLT THREE PHASE 200 or 575 VOLT THREE PHASE CHECK LIST IF PUMP DOES NOT OPERATE PROPERLY Checking for Moisture in Motor Use an ohmmeter Resistance of Windings Every motor winding has or a megger and set on highest scale Readings on a fixed resistance The windings must check close to the large power cord between any of the conductors specification values Verification of the proper wiring red black or white to the green conductor or to the of a dual voltage motor can also be checked by motor housing should be greater than 1 000 000 ohms measuring the motor winding resistance 1 megohm Service work should be done only at an authorized service station Note readings should be taken with line leads disconnected from the control panel CONDITION PROBABLE CAUSE Red light comes on at control box 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 for replace m
3. 1 41 1 1 Used in hazardous location pumps only For pumps built prior to May 2012 consult factory for seal seal housing components 3450 RPM Description ROTOR W SHAFT ORDINARY LOCATION 20 HP 230 3 3450 265760312 MOTOR PARTS 20 HP 460 3 3450 26576D312 20 HP 575 3 3450 26576D312 25 HP 230 3 3450 26576D312 25 HP 460 3 3450 26576D312 25 HP 575 3 3450 26576D312 30 HP 230 3 3450 26576D312 30 HP 460 3 3450 26576D312 ROTOR W SHAFT HAZARDOUS LOCATION 265760312 265760312 265760312 265760312 265760312 265760312 265760312 265760312 HOUSING BRG UPPER 23557D011 23557D011 23557D010 23557D011 23557D011 23557D010 23557D011 23557D011 HOUSING amp STATOR HAZARDOUS LOCATION 23558E724 23558E724 23558E725 23558E724 23558E724 23558E725 23558E724 23558E724 HOUSING amp STATOR ORDINARY LOCATION Description ROTOR W SHAFT ORDINARY LOCATION 23558E324 30 HP 575 3 3450 265760312 23558E324 40 HP 460 3 3450 26576D313 23558E325 40 HP 575 3 3450 26576D313 23558E324 50 HP 460 3 3450 26576D313 23558E324 50 HP 575 3 3450 26576D313 23558E325 60 HP 460 3 3450 26576D313 23558E324 60 HP 575 3 3450 26576D313 ROTOR W SHAFT HAZARDOUS LOCATION 265760312 265760313 265760313 265760313
4. gt PENTAIR MYERS MODELS 4VC X AVE X AND 4RC X Used in Hazardous Locations Class 1 Division 1 Groups C amp D SUBMERSIBLE SOLIDS HANDLING PUMPS INSTALLATION AND SERVICE MANUAL Ta For use with product built with USEM motor Approved E To the installer Please make sure you provide this manual to the owner of the equipment or to responsible CAUTION Read these safety warnings first before installing servicing or operating any pump 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 GENERAL 1 Most accidents can be avoided by using COMMON SENSE Read the operation and maintenance instruction manual supplied with the pump N 3 Do not wear loose clothing that can become entangled in the impeller or other moving parts 4 This pump is designed to handle materials that could cause illness or disease through direct exposure Wear adequate protective clothing when working on the pump or piping ELECTRICAL 5 To reduce the risk of electrical shock pump must be properly grounded in accordance with the National Electric Code and all applicable state and local codes and ordinances 6 To reduce risk of electrical shock disconnect the pump from the power source before handling or servicing 7 Any wiring to
5. 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 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 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 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 9 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 Lia
6. 265760313 265760313 265760313 HOUSING BRG UPPER 23557D010 23557D011 23557D010 23557D011 23557D010 23557D011 23557D010 HOUSING amp STATOR HAZARDOUS LOCATION 23558E725 23558E726 23558E727 23558E726 23558E727 23558E726 23558E727 HOUSING amp STATOR ORDINARY LOCATION 1750 RPM Description ROTOR W SHAFT ORDINARY LOCATION 23558E325 15 HP 200 3 1750 26576D307 23558E326 15 HP 230 3 1750 265760307 23558 327 15 460 3 1750 265760307 23558 326 15 575 3 1750 265760307 23558 327 20 200 3 1750 265760307 23558 326 20 230 3 1750 265760307 ROTOR W SHAFT HAZARDOUS LOCATION 26576D307X 26576D307X 26576D307X 26576D307X 26576D307X 26576D307X HOUSING BRG UPPER 23557D010 23557D011 23557D011 23557D010 23557D010 23557D011 HOUSING amp STATOR HAZARDOUS LOCATION 23558E755 23558E758 23558E758 23558E759 23558E755 23558E758 HOUSING amp STATOR ORDINARY LOCATION Description ROTOR W SHAFT ORDINARY LOCATION 23558E355 20 HP 460 3 1750 265760307 23558 358 20 575 3 1750 265760307 23558 358 25 200 3 1750 265760310 23558E359 25 HP 230 3 1750 26576D310 23558E355 25 HP 460 3 1750 26576D310 23558E358 25 HP 575 3 1750 26576D310 ROTOR W SH
7. 750 60 2 1 236080540 870 480 480 3450 30 6 26605520 4 48 3450 40 65 26605C516 Note Standard non overloading impeller diameters shown 4Rc 4RCX 350 1601 75 1150 5 11 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 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 seal fail and heat sensing devices must be hooked
8. 76D306X HOUSING BRG UPPER 23557D011 23557D011 23557D010 23557D010 23557D011 HOUSING amp STATOR HAZARDOUS LOCATION 23558E750 23558E750 23558 751 23558 749 23558 750 HOUSING amp STATOR ORDINARY LOCATION Description ROTOR W SHAFT ORDINARY LOCATION ROTOR W SHAFT HAZARDOUS LOCATION 23558E350 10 HP 460 3 1150 26576D306 26576D306X 23558E350 23558E351 23558E349 10 HP 575 3 1150 26576D306 26576D306X 15 HP 200 3 1150 26576D306 26576D306X 15 HP 230 3 1150 26576D306 26576D306X 23558E350 15 HP 460 3 1150 26576D306 26576D306X HOUSING BRG UPPER 23557D011 23557D010 23557D010 23557D011 23557D011 HOUSING amp STATOR HAZARDOUS LOCATION 23558E750 23558E751 23558E752 23558E753 23558E753 HOUSING amp STATOR ORDINARY LOCATION Description ROTOR W SHAFT ORDINARY LOCATION 23558E350 15 HP 575 3 1150 26576D306 23558E351 23558E352 23558E353 20 HP 200 3 1150 26576D306 20 HP 230 3 1150 265760306 20 460 3 1150 265760306 23558E353 20 HP 575 3 1150 26576D306 ROTOR W SHAFT HAZARDOUS LOCATION 26576D306X 26576D306X 26576D306X 265760306 26576D306X HOUSING BRG UPPER 23557D010 23557D010 23557D011 23557D011 23557D010 HOUSING amp STATOR HAZARDOUS LOCATION 23558E754 23558E752 23558E753 23558E753 23558E754 HOUSING amp
9. AFT HAZARDOUS LOCATION 26576D307X 26576D307X 26576D310X 26576D310X 26576D310X 26576D310X HOUSING BRG UPPER 23557D011 23557D010 23557D010 23557D011 23557D011 23557D010 HOUSING amp STATOR HAZARDOUS LOCATION 23558E758 23558E759 23558E790 23558E762 23558E762 23558E763 HOUSING amp STATOR ORDINARY LOCATION Description ROTOR W SHAFT ORDINARY LOCATION ROTOR W SHAFT HAZARDOUS LOCATION 23558E358 30 HP 200 3 1750 26576D310 26576D310X 23558E359 30 HP 230 3 1750 26576D310 26576D310X 23558E390 30 HP 460 3 1750 26576D310 26576D310X 23558E362 30 HP 575 3 1750 26576D310 26576D310X 23558E362 40 HP 230 3 1750 26576D310 26576D310 26576D310X 23558E363 40 HP 460 3 1750 26576D310X HOUSING BRG UPPER 23557D010 23557D011 23557D011 23557D010 23557D011 23557D011 HOUSING amp STATOR HAZARDOUS LOCATION 23558E790 23558E762 23558E762 23558E763 23558E764 23558E764 HOUSING amp STATOR ORDINARY LOCATION Description ROTOR W SHAFT ORDINARY LOCATION 23558E390 40 HP 575 3 1750 26576D310 23558E362 50 HP 230 3 1750 26576D310 23558E362 50 HP 460 3 1750 26576D310 23558E363 50 HP 575 3 1750 26576D310 23558E364 60 HP 460 3 1750 26576D310 23558E364 60 HP 575 3 1750 26576D310 ROTOR W SHAFT HAZARDOUS LOCATI
10. ON 26576D310X 26576D310X 26576D310X 26576D310X 26576D310X 26576D310X HOUSING BRG UPPER 23557D010 23557D011 23557D011 23557D010 23557D011 23557D010 HOUSING amp STATOR HAZARDOUS LOCATION 23558 765 23558 766 23558 766 23558 767 23558 766 23558 767 HOUSING amp STATOR ORDINARY LOCATION 23558E365 23558E366 23558E366 23558E367 23558E366 23558E367 23558E327 23558E324 1150 RPM Description ROTOR W SHAFT ORDINARY LOCATION 5 HP 200 3 1150 26576D303 MOTOR PARTS 5 HP 230 3 1150 265760303 5 HP 460 3 1150 26576D303 5 HP 575 3 1150 26576D303 7 5 HP 200 3 1150 26576D302 ROTOR W SHAFT HAZARDOUS LOCATION 26576D303X 26576D303X 26576D303X 26576D303X 26576D302X HOUSING BRG UPPER 23557D010 23557D011 23557D011 23557D010 23557D010 HOUSING amp STATOR HAZARDOUS LOCATION 23558E774 23558E775 23558E775 23558E776 23558E749 HOUSING amp STATOR ORDINARY LOCATION Description ROTOR W SHAFT ORDINARY LOCATION 23558E374 7 5 230 3 1150 265760302 23558E375 23558E375 23558E376 7 5 HP 460 3 1150 26576D302 7 5 HP 575 3 1150 26576D302 10 HP 200 3 1150 26576D306 23558E349 10 HP 230 3 1150 26576D306 ROTOR W SHAFT HAZARDOUS LOCATION 26576D302X 26576D302X 26576D302X 265760306 265
11. PER 23557D010 23557D011 23557D011 23557D010 23557D010 23557D011 23557D011 23557D010 HOUSING amp STATOR HAZARDOUS LOCATION 23558E743 23558E744 23558E744 23558E745 23558 771 23558 772 23558 772 23558 773 HOUSING amp STATOR ORDINARY LOCATION 23558E343 23558E344 23558E344 23558E345 23558 371 23558 372 23558E372 23558E373 WET END PARTS M um A ZR p 28 Ly N 4VEX 4RC 4 1750 RPM and 1150 RPM y 2 7 4RC 4RCX 3450 RPM WET END PARTS LIST 4RC 4RCX 4RC 4RCX Description 3450 RPM 1150 1750 RPM 4VC 4 AVE 6VCX KEY SQ SST 05818A087 05818A071 05818A071 05818A071 05818A071 WASHER RETAINER 23609A004 23609A004 23609A004 23609A004 23609A004 SCREW CAP HEX SST 1 2 191064017 191064017 191064017 191064017 19106A017 CASE VOLUTE 26606E000 107835002 23606F010 26889F000 23606F000 GASKET 05863A021 05863A021 05863A021 2 05863A021 PLATE ADAPTER SPACER gt 268880000 RING WEAR 149490001 ADAPTER WEAR RING 26889F010B 23607B000 26889F011C 10 IMPELLER CHART Pump _ Hp f Trim Impeller 1 296080848 AVG 4 1750 236080548 155 20 9 236080544 pC Avex 1750 60 12 236080520 evc evcx 1
12. RAL INFORMATION Pump Models These instructions cover the installation and service of the Myers pumps as listed on the front cover The hazardous location models are Factory Mutual approved and listed hazardous location for hazardous sewage locations Class 1 Division 1 Groups C amp D Motor HP amp Voltages These pumps are offered in a three phase wiring configuration only Voltages will vary according to the application Electrical Controls All of these pump models must be used with a control panel Myers built control panels are designed to supply the correct electrical controls motor starting equipment and include the circuitry for moisture and heat sensors It is recommended that a Myers built control panel be used so that all warranties apply General Construction The motor construction is designed to meet Factory Mutual s requirements for Class 1 Division 1 Groups C amp D sewage applications The hazardous location models are certified and nameplated with this approval The motor chamber and seal chamber are filled with a high dielectric type oil for improved lubrication and heat transfer of the bearings and motor Since the bearings have been designed for 50 000 hours of life the oil should never require replacement under normal operating conditions An air space above the oil level in both the seal and motor chambers is provided to allow for the expansion of the oil when at operating temperature The power and c
13. SCREW MACH PAN HD 10 24 11904A005 1 4 20 SST LOCK NUT 3450 RPM 058764135 O RING 119044037 1 4 20 SST LOCK NUT 870 1150 1750 RPM 05876A136 O RING 19103A045 SCREW CAP HEX SST 3 4 4RC X 4VC X 6VC X 05876A137 O RING 19103A062 SCREW CAP HEX SST 3 4 4VE X 05876A138 O RING 235490031 35 CORD ASSEMBLY 10 4 06106A028 SCREW CAP CKT HD SST 235490032 35 CORD ASSEMBLY 8 4 50011 06107A015 WASHER LOCK 235490039 35 CORD ASSEMBLY 8 4 W 075971017 SCREW MACH FT HD 235490036 35 CORD ASSEMBLY 6 4 08565027 BEARING BALL UPPER 235490037 35 CORD ASSEMBLY 4 4 000650381 BEARING BALL LOWER 235490038 35 CORD ASSEMBLY 2 4 12558A020 RING RETAINING EXTERNAL 235490631 _ 35 HAZARDOUS LOCATION CORD ASSEMBLY 10 4 12558A024 RING RETAINING EXTERNAL 235490632 35 HAZARDOUS LOCATION CORD ASSEMBLY 190994003 SCREW CAP 1 4 SST 8 4 SOOW 235490639 35 HAZARDOUS LOCATION CORD ASSEMBLY 8 4 W 19103A049 SCREW CAP HEX SST 23549D636 35 HAZARDOUS LOCATION CORD ASSEMBLY 6 4 19331A008 WASHER SPRING WAVE 23549D637 35 HAZARDOUS LOCATION CORD ASSEMBLY 4 4 22912A000 RESISTOR 23549D638 35 HAZARDOUS LOCATION CORD ASSEMBLY 2 4 22578A001 ELECTRODE 5 15 HP 23555A000 TERMINAL 41 41 41 41 41 1 41 1 41 41 5
14. STATOR ORDINARY LOCATION 870 RPM Description ROTOR W SHAFT ORDINARY LOCATION 23558E354 2 200 3 870 26576D300 23558E352 23558E353 23558E353 2 230 3 870 26576D300 2 460 3 870 265760300 2 575 3 870 265760300 23558 354 3 HP 200 3 870 26576D300 3 HP 230 3 870 26576D300 3 HP 460 3 870 26576D300 3 HP 575 3 870 26576D300 ROTOR W SHAFT HAZARDOUS LOCATION 26576D300X 26576D300X 26576D300X 26576D300X 26576D300X 26576D300X 26576D300X 26576D300X HOUSING BRG UPPER 23557D010 23557D011 23557D011 23557D010 23557D010 23557D011 23557D011 23557D010 HOUSING amp STATOR HAZARDOUS LOCATION 23558E743 23558E744 23558E744 23558E745 23558E743 23558E744 23558E744 23558E745 HOUSING amp STATOR ORDINARY LOCATION Description ROTOR W SHAFT ORDINARY LOCATION 23558E343 5 HP 200 3 870 26576D300 23558E344 23558E344 23558E345 5 HP 230 3 870 26576D300 5 HP 460 3 870 26576D300 5 HP 575 3 870 26576D300 23558E343 7 5 HP 200 3 870 26576D302 23558E344 7 5 HP 230 3 870 26576D302 23558E344 7 5 HP 460 3 870 26576D302 23558E345 7 5 HP 575 3 870 26576D302 ROTOR W SHAFT HAZARDOUS LOCATION 26576D300X 26576D300X 26576D300X 26576D300X 26576D302X 26576D302X 26576D302X 26576D302X HOUSING BRG UP
15. be done on pumps should be done by a qualified electrician 8 Never operate a pump with a power cord that has frayed or brittle insulation 9 Never let cords or plugs lie in water 10 Never handle connected power cords with wet hands PUMPS 11 Pump builds up heat and pressure during operation allow time for pump to cool before handling or servicing 12 Only qualified personnel should install operate or repair pump 13 Keep clear of suction and discharge openings DO NOT insert fingers in pump with power connected 14 Do not pump hazardous material not recommended for pump flammable caustic etc 15 Make sure lifting handles are securely fastened each time before lifting 16 Do not lift pump by the power cord 17 Do not exceed manufacturer s recommendation for maximum performance as this could cause the motor to overheat 18 Secure the pump in its operating position so it cannot tip over fall or slide 19 Keep hands and feet away from impeller when power is connected 20 Submersible solids handling pumps are not approved for use in swimming pools recreational water installations decorative fountains or any installation where human contact with the pumped fluid is common 21 Do not operate pump without safety devices in place IMPORTANT Myers is not responsible for losses injury or death resulting from a failure to observe these safety precautions misuse or abuse of pumps or equipment GENE
16. bility 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 PROPERTY 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 N1T 0A5 419 289 1144 800 363 PUMP WWW FEMYERS COM Warranty Rev 12 13
17. control box may be damaged by lightning Resistance reading of the motor with lead wires disconnected from the control box can determine if trouble is in motor or control box Impeller may be partially clogged with some foreign objects causing noise and overload on the motor Impeller may be rubbing on wear ring due to bent shaft or misalignment Pump may be operating too close to shut off Check head Lower control switch may be set too high 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 is set properly this condition generally will not occur Trash and grease may have accumulated around floats causing pump to operate erratically COMMON PARTS LIST 8 12 X 6 20115 43 ft lbs 93 ft Ibs 128 ft lbs 193 ft Ibs 27 JN 07772 2 DESCRIPTION PART NO DESCRIPTION 080730001 SEAL SHAFT 2 1 4 25343A100 PROBE SEAL LEAK 05022A015 PLUG PIPE ST GALV 1 2 236040010 HOUSING SEAL UPPER ORDINARY LOCATION 05022A092 PLUG PIPE ST GALV 1 4 HEX HD 236040010 _HOUSING SEAL UPPER HAZARDOUS LOCATION 050304214 WASHER SUPPORT 236100100 HOUSING SEAL LOWER ORDINARY LOCATION 054340025 SCREW MACH ST 260 6 32 236100100 _ HOUSING SEAL LOWER HAZARDOUS LOCATION 055830011
18. d the ceramic face and then prying working around the entire diameter Note these parts should be discarded and a new seal assembly installed 5 If the oil in the seal chamber was drained examine the contents to determine if the upper seal has been damaged Signs of grit or other abrasive material may indicate that the upper seal has also been damaged Pressurizing the motor housing assembly between 7 and 10 psi and observing any drop in pressure will indicate if the upper seal is functioning properly Note Upper seal repairs must be done at a Myers Authorized Service Center or at the Myers factory Any unauthorized field repair voids warranty and the hazardous location approval on the F M listed pump 6 The wear ring can be removed from the volute for repair or replacement First remove the retaining screws from the wear ring With a soft mallet the wear ring can be tapped out of the volute case Reassembly 1 Remove the ceramic portion of the new seal from the package Brush new dielectric oil around the rubber portion of the stationary assembly and into the pocket in the seal housing Note keep the oil off the seal face Without scratching the seal face press the ceramic stationary portion into the seal housing using a Myers seal pusher With a clean cloth lightly wipe the face of the seal surface to make sure it is dirt free Remove the rotating portion of the seal from the package and lubricate the inside diameter of th
19. e rubber bellows and the outside diameter of the shaft Place the seal over the shaft make sure the key is removed Evenly press on the body of the rotational assembly and slide it down the shaft until the seal faces meet Once the seal assembly is in position place the spring over the register on the rotational portion of the seal 2 Before placing impeller on shaft the seal spring retainer should be placed on shaft with stepped end toward seal spring Position the key into the seat in the shaft Align the impeller onto the shaft making sure that the seal spring is registered properly onto the back side of the impeller Insert 5 The motor and impeller assembly can be installed the bolt and washer assembly into the shaft and into the volute Make sure that the impeller aligns tighten properly with the volute Install the volute retaining 3 Fill the seal chamber with new dielectric oil bolts and tighten An air gap of 10 15 volume must be left for 6 Air tends to trap in the pump case when water the expansion of the oil when it is at operating rises in the sump or when the pump is lowered into temperature the water after service To vent off this air a small hole is drilled into the volute casting Be sure this vent hole is clean after any service work on pump Air venting is not a problem after initial start 4 The wear ring can be aligned with the retaining holes and tapped into place with a soft mallet The proper Loctite
20. ent of lower seal This preventative repair will save an expensive motor Overload trips at control box and alarm buzzer or 1 Push in on red reset button to reset overload If flashing red light comes on due to high water level in overload trips again after short run pump has some basin damage and must be removed from basin for checking 2 Trouble may be from clogged impeller 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 CONDITION Yellow run light stays on continuously Circuit breaker trips Pump is noisy and pump rate is low Grease and solids have accumulated around pump and will not pump out of basin PROBABLE CAUSE Indicates H O A switch may be in the hand position Level control switch may have failed causing pump to continue to operate when water is below lower control Impeller may be partially clogged causing pump to operate at very reduced capacity Gate valve or check valve may be clogged causing low pump flow Pump may be air locked Reset breaker by pushing completely 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 If this condition happens after an electrical storm motor or
21. ontrol lines are sealed and strain relieved by a grommet in the cord cap and internally through the use of a dielectric potting resin surrounding the electrical wires All of the pump fasteners and shafts are made from corrosion resistant stainless steel while the pump castings are made of ASTM A 48 Class 30 cast iron The wear ring is brass and all impellers are two vane enclosed solids handling design made from ductile iron General Installation Various configurations and methods of plumbing this series of solids handling pumps may be used however for ease of installation and service a Myers 4 rail lift out system is recommended Note If the hazardous location pumps are used in conjunction with a rail lift out system it must be an E M approved nonsparking hazardous location system The Myers approved lift out models are 4 Liftout SRAX44HH 6 Liftout SRAX66 If these guidelines are not followed the Factory Mutual approval is void Hazardous Location Service These pumps are to be used for handling sewage wastewater and storm water only Do not use in other hazardous locations These pumps must be repaired and serviced only at Myers Authorized Service Centers or at the Myers factory Any unauthorized field repair voids warranty hazardous location rating and Factory Mutual approval CAUTION After the pump is installed and sewage has entered the basin there are methane and hydrogen sulfide gases which are poisonou
22. s Never enter a wet well unless the cover is open for a sufficient period of time to allow fresh air into the basin Myers recommends using the rail lift out system so that no service is required inside the basin Motor Each motor is provided with heat sensor thermostats attached directly to the motor windings The thermostats open if the motor windings see excessive heat and in turn open the motor contactor in the control panel breaking the power to the pump When the motor is stopped due to an overheated condition it will not start until the motor has cooled and the heat sensor reset button is manually pushed on the front of the Myers control panel This circuitry is provided in the Myers control panel designs Thermostats are set to open at a temperature of 248 F 120 C The maximum contact rating is 18 amps at 115 VAC and 12 amps at 230 VAC Motor winding insulation is good for Class H 356 F 180 C Note Failure to use proper circuitry and to connect the motor overheat protection in the control panel would negate all warranties and F M approval Motor Seal Failure Warning The seal chamber is oil filled and provided with moisture sensing probes to detect water leakage through the lower shaft seal The probes can also detect moisture present in the upper motor housing The presence of water energizes a red seal leak warning light at the control panel This is a warning light only and does not stop the motor It indica
23. tes a leak has occurred and the pump must be repaired Normally this indicates the outboard seal has leaked Allowing the unit to operate after the warning could cause upper seal leakage along with motor failure The resistance across the moisture sensing Seal failure probes should be checked after a seal leak warning light has lit This can be done by disconnecting the red and orange control wires from the control panel and measuring the resistance with an ohmmeter between the wires If the measured values are below specification the pump may have a lower seal failure and require service On the Myers hazardous location control panels the seal leak test switch tests the seal leak circuit continuity When pushed the seal leak test bulb should light If the test bulb does not light it means either the wiring circuitry to the seal leak probes has been broken or the bulb has burned out Note Myers built control panels supply the correct circuitry for moisture and heat sensor connections Failure to install the correct circuitry with proper connection would negate warranty and approval Motor Power Cord Control Cord and Cord Cap Assembly Each motor power cord has 4 conductors white black red and green For a three phase motor the red black and white conductors connect to the three line leads and the green is connected to a good ground Interchanging any two line leads will reverse the rotation of the motor Note Rota
24. tion should be clockwise when observed from the top of the pump This can be checked by noting which direction the pump torque is up on initial starting A properly rotating pump will torque counterclockwise upon start The control cable has 5 conductors black white red orange and green White and black connect to the heat sensor terminals in the control panels red and orange connect to the seal failure terminals in the control panel and the green connects to the ground in the control panel The cord cap is epoxy potted The cord cap provides for a sealed wire connection This allows the cord cap with cords to be removed from the motor An approved hazardous location junction box is required for hazardous locations The control and power cables cannot be spliced Note Each cable has a green ground wire and must be properly grounded per the National Electric Code and local codes Electrical Motor Controls All electrical controls and motor starting equipment should be as specified in these instructions Consult factory for any acceptable alternatives For hazardous locations the controls and control panel must be installed outside the hazardous area or approved hazardous location controls that are intrinsically safe must be used Junction Box If a junction box is used in a hazardous location it must be a hazardous location approved type with hazardous location cord connectors Wires from the junction box must pass thro
25. ugh a hazardous location seal connector Level Sensing Controls Intrinsically safe type float controls are recommended for all applications and required for hazardous location service An intrinsically safe control panel relay will limit the current and voltage to the level controls A Myers control panel can be supplied with this type circuitry The float level controls maintain the basin sewage water level by controlling pump turn on and turn off levels 1 The lower turn off control should be set so that the pump stops at approximately the top of the pump Consult the factory for any settings below this point N The upper turn on control should be set above the lower turn off control The exact height between the two controls is determined by the number of pump starts desired and the depth of the basin A maximum of 10 starts per hour should not be exceeded 3 The override control is set at a specified height above the upper turn on control 4 The alarm control is set about 6 to 12 above the override control 5 No control should be set above the inlet invert Electrical Connections All electrical wiring must be in accordance with local code and only qualified electricians should make the installations All wires should be checked for shorts to ground with an ohmmeter or megger after the connections are made This is important as one grounded wire can cause failure of the pump control panel or personal injury
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