WHR5H, WHR10H, WHR15H & WHR20H
Contents
1. 254545106 271946002 25338803 254846107 271940002 ol 08 30 75 30 30 60 08 30 08 30 75 08 30 08 60 08 30 08 60 208 230 208 _ 230 ala NIN 1 2 2 4 2 2 2 2 2 2 2 3 2538803 254846106 2 7194C0007 3 25338803 254846106 271940007 B 25338803 254845106 271940001 B 25338803 254845107 27194000T N 21 575 208 NJ 253388008 254840110 271940010 280 25338808 25567 271940010 253388003 2548401 271940010 5753 25338803 258518 271046010 2 6z N 3 23833A551 GENERAL DESCRIPTION AND USES The WHRH Series are solids handling pumps that can be used to pump RAW SEWAGE for COMMERCIAL and DOMESTIC use but are not intended to handle large rags mop heads or strings All pumps can be used for normal sewage duty where extra capacity is required RECESSED IMPELLERS All of the pumps are of the recessed impeller type that provides a clear volute passage for solids as no solids pass through the impeller All of the pumps listed can be used to pump septic tank EFFLUENT or GROUND sewage as used in some pressure sewer systems WARNING THESE PUMPS ARE NOT APPROVED FOR AND SHOULD NOT BE USED IN SWIMMING POOLS OR FOUNTAINS AIR LOCKING sewage pump is air locked if water traps air in t2. Electric Code 70 PIPING Pumps are fitted with 2 or 3 female threaded pipe flange Galvanized or PVC plastic pipe can be used Plastic pipe is preferred for raw sewage or septic tank effluent CHECK VALVES AND SHUT OFF VALVES All pumps must have check valves and shut off valves in the discharge line Check valves must be flapper type with outside spring or ball type Shut off valves can be ball or gate type Plastic construction for both check or shut off valves is preferred HOW TO SET CONTROLS FOR SIMPLEX SYSTEMS 1 Automatic systems These systems have the float switches mounted on the pump so pump is installed in the basin and motor cord is plugged into GROUNDED receptacle For sealed basin cover power cord is brought through a split rubber plug in the basin cover 2 Where 2 float controls are used the turn on control is set 3 to 6 above top of motor and the turn off control is set about 6 to 8 above bottom of basin If a high level alarm control is used it is set about 6 above upper control If basin depth will not allow these settings closer spacing can be used 3 Where ALC or AWS 1 automatic wet systems controls are used the displacement weights are set so that turn on weight is 4 to 6 above top of motor and lower weight is set about 6 above basin bottom HOW TO START SIMPLEX SYSTEMS 1 For single phase pumps with MLC or MFLC control plug cords piggy back into rece
3. inside control box and not in a position to be pinched or shorted when the door is closed See wiring diagrams page 7 4 All three phase motors can run either direction Rotation can be changed by interchanging any two line leads at magnetic starter BE SURE CIRCUIT BREAKER 1 OFF BEFORE MAKING THIS CHANGE To find if rotation is correct operate pumps and check delivery operation If flow and head is low refer to pump curve shown in this manual the rotation is wrong With duplex pumps check operation of both pumps 5 All pump impellers either single or three phase must turn counterclockwise when looking into pump inlet 23833A551 If uncertain of rotation TURN OFF POWER lift pump from basin with cord connected and lay pump on side so impeller can be seen Turn on power and start pump using hand position of H O A switch Turn on and off fast so that coast of impeller can be seen NEVER PUT HAND OR FINGERS ON THE IMPELLER Interchange any two line leads at the magnetic starter to change rotation POINTS TO CHECK IF PUMP DOES NOT RUN OR DOES NOT RUN PROPERLY 1 Pump does not run or start when water is up in tank a Check for blown fuse or tripped circuit breaker b Check for defective level switch c Where control panel is used be sure H O A switch is in the AUTO position If it does not run turn switch to the HAND position and if the pump runs then the trouble is in the automatic electrical system Have an ele
4. switches to OFF and fill basin until level is above the alarm control Turn switches to AUTO position and alarm buzzer should sound and alarm light should come on When level drops below the alarm control buzzer should stop 7 If pumps operate as described then set both H O A to AUTO and pumps are ready to operate automatically 8 If pumps do not operate properly then check as described for simplex systems CAUTION NEVER WORK ON PUMPS OR CONTROL BOXES UNTIL CIRCUIT BREAKERS ARE TURNED OFF Always have a qualified electricion make electrical connections and service checks SPECIAL INSTRUCTIONS FOR THREE PHASE PUMPS 1 WARNING Only qualified persons shall conduct services and installations of this pump The pump must be wired by a qualified electrician using an approved starter box and switching device CAUTION Risk of electric shock Do not remove cord and strain relief Do not connect conduit to pump 2 Three phase pumps are always installed with control boxes having magnetic starters with 3 leg overload protection DO NOT TRY TO RUN THREE PHASE PUMPS DIRECTLY ACROSS THE LINE 3 To Connect Pump Run wire from pump to the bottom of control box or appropriate junction box suitable for enclosing splice connections A hole must be cut into the control box for the wires With power to control box off connect green ground line to ground lug Connect black power wires to power lead terminals Make sure that all wires are
5. Myers Pentair Water WHR5H WHR10H WHR15H amp WHR20H Submersible Sewage Pump Installation and Service Manual Single seal single and three phase power 1 23833 551 TYPICAL SECTION DRAWING 11 23833A551 2 REPAIR PARTS LIST SINGLE SEAL REPAIR PARTS LIST WHRH SERIES No No Description Req d Description Req d 8 Plate brg amp seal 1 253670000 21 Clip capacitor 1 Ph only 9 Screw cap 516x 1 1 4 8 191004012 10 Flange 2 Cl 1 002080002 3 Cl Alternate Unit manufactured prior to Aug 2007 contact factory for repair parts 23 Plug 1 4 pipe 1 05022 009 3 32 Thk VARIABLE PARTS CHART TEMNUMBER o 546 POWER POWER STATOR WHRH VOLTS PH W PLUG PLUG CAP CAP CLIP SHAFT DI 2 s 25338803 2 271046008 2303 25338803 254840102 271940003 0 25338803 254845102 271946008 1 ag 8 09 DO POP POT PO Po N 253388003 254846103 271940003 208 a 253388002 23839A000 20333A006 264840101 230 1 253388001 253388002 238392000 203339006 254840101 208 59 25484012 s 253388003 ea E wj oO 9 AYALA 29 pe w gt E wo aN 2533803 O 2548452 25338803 258408 25338803 254840106 271946002 25338803 254846106 271940002
6. Plug the switch cord plug into a proper voltage properly grounded outlet 3 Plug the pump power cord into the back of the switch cord series plug 4 Tape the cords to the discharge pipe every 12 5 Run water into basin until pump starts Be sure discharge line valve is open 6 Allow pump to operate through several on off cycles 7 lf pump does not operate properly refer to page 6 HOW TO SET CONTROLS AND START DUPLEX SYSTEMS CONTROL BOX MUST BE USED ON ALL DUPLEX SYSTEMS 1 4 float controls are used for duplex systems Set turn on control 6 to 8 above pumps Set turn off control 8 to 10 above bottom of basin Set override control 6 to 8 above turn on control Set high level alarm control about 6 to 8 above override control Mark all control cords so that they can be connected correctly in the control box 2 Turn Hand Off Auto switches to OFF position and close circuit breaker 3 Turn both H O A switches to the AUTO position and run water into basin When level floats up and activates the turn on switch one pump should start and run pump will continue to run until lower control is exposed stopping pump 4 Run water into sump again and when level floats up turn on control opposite pump will start and run until level drops exposing lower control stopping pump 23833A551 5 Run this test several times to be sure pumps are alternating properly 6 To check high level alarm again turn both
7. ctrician make electrical checks d Check for burned out motor Occasionally lightning can damage a motor even with lightning protection e Where plug in cords are used be sure contact blades are clean and making good contact DO NOT USE PLUG IN CORDS INSIDE A BASIN OR WET WELL 2 Pump runs but does not deliver flow a Check for airlock Start and stop pump several times if this does not help it may be necessary to loosen a union in the discharge line to relieve airlock b Check valve may be installed backwards Check flow arrow on valve body Check shut off valve It may be closed c Check vertical elevation It may be higher than pump can develop See pump curve page 11 d Pump inlet may be plugged Remove pump to check e Level control ball or weight may be stuck on side of basin Be sure it floats freely CAUTION ALWAYS UNPLUG POWER CORDS OR TURN OFF ALL MAIN AND BRANCH CIRCUIT BREAKERS BEFORE DOING ANY WORK ON THE PUMP If control panel is remote from pump disconnect lead wires to motor so that no one can turn the circuit breaker back on WIRING DIAGRAMS id Black Black 7 White oe _ 2 Red a Black White 7 Black AN 4 ROJ 5 U LJ 200V or 230V 575V 3 Phase 1 Phase P S C 200V 3 Phase 3 HP _ B
8. e motor housing up far enough to expose the ca pacitor and to be able to lay the housing down see Fig 8 6 Disconnect wiring from capacitor and loosen capaci tor clamp and slide out capacitor Replace with new capacitor tighten and reconnect Wiring diagram is given in these instructions 7 Check all wiring connectors to be sure they are se cure 8 Be sure tetraseal gasket is in place 9 Slide motor housing back onto pump while pulling the cords out slowly Assemble the motor housing with the four bolts 10 Reassemble cord nuts Be sure washers are seated and cords are pulled up to stop against the washers Tighten nuts securely 11 Put pump upright and refill motor with Myers sub mersible motor oil DO NOT OVER FILL WITH OIL With pump upright fill oil to bottom of oil fill tapping Replace oil fill plug 12 Be sure pump turns freely before connecting to power Turn pump on side and turn impeller using screwdriver in slotted shaft Plug pump into recep tacle to test operation Pump must run quiet and free of vibration TO REPLACE POWER CORD AND OR SEAL LEAK DETECTOR CORD 1 Remove motor housing as described above Discon nect the push together terminals and remove the ground screw from the power cord if being replaced 2 Completely unscrew cord bushing to be replaced and remove cord assembly from housing Be sure remaining terminals are secure on the wires 3 Replace with proper cord and fittings Push c
9. ex single phase pumps can be automatic by attaching MFLC or MLC controls to the pump These switches have a fixed draw off level of 8 to 10 inches and can be used up to 1 HP For higher horsepower ratings two mercury switch or SMNO controls with a magnetic starter can be used The ALC and AWS 1 controls can be used for simplex single phase pumps with ratings up to 2 HP All duplex systems must use pilot mercury control sensor switches with control box and magnetic starters Plug in cords can be used on all the single phase pumps without seal leak detector This cord has a GROUND pin that plugs into a grounded receptacle The grounded receptacle cannot be used in the wet sump or basin due to DANGER of current leakage Sealed junction boxes must be used in wet sumps or basins to make connections to motor cord The AWS 1 control also acts as a sealed junction box for connecting power cord to pump cord This product contains mercury and must be disposed of according to local and federal codes MOTOR TYPES All single phase pump motors are of the permanent split capacitor type that do not require a start switch or start relay Automatic reset overload switches are attached directly to the motor windings Three phase pump motors are squirrel cage induction type INSTALLATION Pumps can be installed inside sealed basins with proper venting for either simplex or duplex systems Simplex or duplex basin systems are available It
10. fects or malfunctions resulting from failure to properly install operate or maintain the unit in accordance with printed instructions provided b to failures resulting from abuse accident or negligence c to normal maintenance services and the parts used in connection with such service d to units which are not installed in accordance with applicable local codes ordinances and good trade practices or e unit is used for purposes other than for what it was designed and manufactured and f if three phase submersible motors are installed on a single phase power supply using a phase converter or if three phase power is supplied by only two transformers making an open Delta system RETURN OR REPLACED COMPONENTS any item to be replaced under this Warranty must be returned to MYERS in Ashland Ohio or such other place as MYERS may designate freight prepaid PRODUCT IMPROVEMENTS 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 units sold and or shipped prior to such a change or improvement WARRANTY EXCLUSIONS MYERS SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FORA PARTICULAR PURPOSE AFTER THE TERMINATION OF THE WARRANTY PERIOD SET FORTH HEREIN Some states do not permit some or all of the above warranty limitations and therefore such limitations may not apply to you No warranties or representations at any
11. he pump and it cannot get out thus preventing the pump from operating In installations of this type a 1 8 hole should be drilled in the discharge pipe below the check valve The check valve should be 12 to 18 inches above pump discharge Do not put check valve directly into pump discharge opening LEVEL CONTROLS All pumps must use sealed level control switches for automatic operation MLC and MFLC controls have sealed switches that are 1 HP rated at 230 volts ALC and AWS 1 controls have sealed mechanical switches that are rated 2 HP at 230 volts SAFETY WARNINGS WARNING Risk of electric shock Pumps without seal leak detectors are supplied with a grounding conduction and grounding type attachment plug on the power cord To reduce the risk of electric shock be certain that it is connected only to a properly grounded grounding type receptacle DO NOT cut off ground pin or use and adapter fitting DO NOT use an extension cord with this pump Entire plug may be cut off if a control panel is used When wiring this pump follow all local electrical and safety codes and ordinances as well as the most recent National Electric Code NEC ANSI NFPA 70 All pumps have a GROUND WIRE that is connected to a screw in the metal motor housing This wire goes to the receptacle or control box which must be connected to a good outside GROUND such as a metal water pipe or GROUND STAKE driven at least 8 feet into the ground 23833A551 Simpl
12. is not recommended that basins be used for raw sewage inside the home but are for use in office buildings and small industrial buildings and factories If raw Sewage must be pumped in the home use outside basins that connect with pressure sewer mains or gravity sewers or run to septic tanks Basins can be used inside the home where extra capacity sump pumps are required for water softeners and wash water If an inside basin is used it is usually installed at time of pouring the concrete floor Pumps can be installed in a compartment of septic tanks for pumping to pressure sewer mains gravity sewers leach fields or evaporation mounds PROPER VENTING FOR BASINS INSTALLED INSIDE All inside sealed basins must have 2 or vent pipe installed in accordance with local codes Basins for handling softener water wash or drainage water do not have to be sealed or vented Outside basins are usually of fiberglass and from 4 to 8 feet deep and have a sealed cover Pump is usually installed with a lift out rail system so that pump can be removed without disturbing the discharge piping The check valve comes out with pump for servicing Complete lift out systems mounted in fiberglass basins are available to meet customer specifications WARNING Basin must be vented in accordance with local plumbing codes These pumps are not designed for and CANNOT be installed in locations classified as hazardous in accordance with the National
13. lack a Green Green Lee White a Red onl T Ground end 11 230V 3 Phase 460V 3 Phase 208V 3 Phase 1 2 HP 3 Phase Dual Voltage Winding Leads Voltage Black White Red Together 23833A551 11 01 21 WHR5H 03 WHR5H 23 WHR5H 43 WHR5H 53 Winding Resistance in Ohms Main Black Start Black Brown to Volts to White to Brown 13 8 7 6 WHR10H 21 WHR10H 03 WHR10H 23 WHR10H 43 WHR10H 53 WHR15H 21 WHR15H 03 WHR15H 23 WHR15H 43 WHR15H 53 WHR20H 03 WHR20H 23 WHR20H 43 WHR20H 53 7 1 1 3 3 3 3 1 3 3 3 3 1 3 3 3 3 3 3 3 3 23833A551 8 TO REPLACE CAPACITORS ONLY All of the single phase motors are of the permanent split capacitor type and have no relays or starting switch They have only a starting capacitor that is in the circuit for both starting and running conditions Three phase units do not have a capacitor 1 Remove oil fill plug near the top of the motor and pour the oil out see Fig 6 2 Loosen the plug nuts around the cords until they are loose enough to push the cords down inside of the motor housing 3 Remove the four bolts from the motor housing and bump the housing with a plastic hammer to loosen Lay the pump on its side see Fig 7 4 Remove the housing carefully to be sure that enough cord is pushed into the housing to create not tension on the cords 5 Slid
14. ller must turn coun terclockwise when looking into the impeller inlet If not interchange any two leads in the control box SHAFT SEAL REPLACEMENT 1 Remove plugs in motor housing and drain oil observe for water in the oil If no water is present check wind ing with megger at end 2 Remove four bolts holding the volute case and bump with plastic hammer to loosen and remove case see Fig 10 3 Hold impeller and unscrew impeller Allen head locking screw Turn counterclockwise to loosen 4 Insert flat screwdriver into slot where the impeller locking screw was Holding screwdriver stationary remove impeller from shaft rotating counterclockwise 23833A551 5 Pry off seal bellows and ceramic seat Break seat if necessary to get out since it must be replaced with a new one anyway see Fig 11 6 NEVER USE OLD SEAL PARTS USE ONLY COM PLETELY NEW SEALS 7 Clean seal chamber and shaft thoroughly before installing a new seal 8 Lightly oil the ceramic rubber cup O D install square and flat with seal pusher a pusher can be made from 3 4 Sch 40 PVC pipe must be clean 9 Lightly oil Myers motor oil the clean shaft and slide carbon half of seal into position 10 Discard spring retainer Spring seats directly on impeller 11 Be sure tetraseal is in position replace if worn and reassemble 12 Replace oil in motor housing use only Myers sub mersible oil 13 Be su
15. ord into the motor housing far enough to make proper connec tions Reconnect ground wire if replacing power cord and securely connect the wires correctly See wiring diagram in these instructions 4 Assemble cords and motor housing as described in Capacitor Replacement Fill with oil as noted and be sure pump turns freely before connecting to power TO REPLACE MOTOR STATOR AND SHELL 1 Remove motor housing as described previously 2 Disconnect all leads from power and seal leak cords and ground wire and set pump upright 3 Loosen the four long screws holding the motor and remove slowly see Fig 9 4 Either remove previous capacitor and clamp from 23833A551 old motor and assemble onto new stator and shell or replace with a new capacitor and assemble the two capacitor leads per wiring diagram 5 Position bearing spring washer on top of upper ball bearing 6 Position the stator with shell into place and line up screws with the bosses an tighten the 4 long screws Lay unit down in line with motor housing 7 sure pump turns freely with screwdriver in impeller end of shaft 8 Reconnect all terminals securely per wiring diagram 9 Be sure tetraseal gasket is in place 10 Reassemble motor housing and fill with oil as noted above in capacitor replacement NOTE On three phase motors always check unit for proper rotation With pump on its side apply power by turning on then off quickly Impe
16. ptacle and run water into basin until pump starts Allow pump to make several on off cycles Leave power cord plugged in If pump runs but does not pump it may be air locked Unplug cord and crack union in the discharge line then restart pump this should vent off any trapped air Retighten union 2 With 2 float controls turn on power at the control box and run water into basin When level gets above top control pump should start and continue to pump until level drops to lower control stopping pump Run pump through several cycles If pump runs but does not pump check air lock as in 1 Leave power on for automatic operation 3 Where ALC or AWS 1 controls are used plug in cord or turn on power and run water into basin when level is about half way up on upper weight pump should start and run until level drops until about half the lower weights is above water stopping pump Check 1 if pump does not operate properly For all cases if motor does not start when water level is up check for proper plug in or that start switch is on or if fuse is blown ALWAYS HAVE ELECTRICIAN MAKE ELECTRICAL CHECKS STARTING PUMP WHRH PIGGYBACK AUTOMATIC USING MECHANICAL SWITCH SERIES PLUG SIMPLEX SYSTEM These pumps have a mechanical mercury free float switch with a 20 ft cord and a 115 volt or 230 volt series piggy back plug on 1 2 HP with switch mounted to the pump On 3 4 1 and 2 HP it requires 20 ft cord and 230 volt only 2
17. re pump turns freely before connecting to power After connecting check for proper rotation noted under Stator Replacement Total Head in Feet 40 60 80 PUMP PERFORMANCE Capacity Liters Per Minute 400 500 100 120 140 600 700 800 900 Total Head in Meters 160 180 200 220 240 Gallons Per Minute DIMENSIONS dimensions in mm 215 08 75 2 NPT Flanged Discharge 3 NPT Optional 23833A551 MYERS LIMITED WARRANTY SUMP amp RESIDENTIAL SEWAGE During the time periods and subject to the conditions hereinafter set forth F E Myers will repair or replace to the original user or consumer any portion of your new MYERS product which proves defective due to defective materials or workmanship of MYERS Contact your nearest Authorized MYERS Dealer for war ranty service At all times MYERS shall have and possess the sole right and option to determine whether to repair or replace defective equipment parts or components Damage due to lightning or conditions beyond the control of MYERS is NOT COVERED BY THIS WARRANTY WARRANTY PERIOD Pumps 12 months from date of purchase or 18 months from date of manufacture Labor etc Costs MYERS shall IN NO EVENT be responsible or liable for the cost of field labor or other charges incurred by any customer in removing and or reaffixing any MYERS product part or component thereof THIS WARRANTY WILL NOT APPLY a to de
18. time made by any representatives of Myers shall vary or expand the provision hereof LIABILITY LIMITATION IN NO EVENT SHALL MYERS BE LIABLE OR RESPONSIBLE FOR CONSEQUEN TIAL INCIDENTAL OR SPECIAL DAMAGES RESULTING FROM OR RELATED IN ANY MANNER TO ANY MYERS PRODUCT OR PARTS THEREOF PERSONAL INJURY AND OR PROPERTY DAMAGE MAY RESULT FROM IMPROPER INSTALLATION MYERS DISCLAIMS ALL LIABILITY INCLUDING LIABILITY UNDER THIS WARRANTY FOR IMPROPER INSTALLATION MYERS RECOMMENDS FOLLOWING THE INSTRUCTIONS IN THE INSTALLATION MANUAL WHEN IN DOUBT CONSULT A PROFESSIONAL Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you This Warranty gives you specific legal rights and you may also have other rights which vary from state to state In the absence of suitable proof of this purchase date the effective date of this warranty will be based upon the date of manufacture DETERMINATION OF UNIT DATE OF MANUFACTURE Submersible Sump pump 8 95 month and year stamped on pump nameplate column sump pump month and year on red warranty tag Myers Pentair Water F E Myers 1101 Myers Parkway Ash and Oho 44805 419 289 1144 Fax 419 289 6658 www femyers com 23833A551 6 09 12
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