Xylem Bell & Gossett WEHT0311M Installation, Operation And Maintenance Instructions Download Page 5

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SINGLE PHASE CONTROL PANELS:

Control  panels are available as Simplex (controls 1 pump) or 

Duplex (controls 2 pumps). Our standard SES Series Panels 

are available with many standard features and can be built 

with our most popular options. We also custom build panels 

which offer many more design options than the SES panels. 

Custom control panels are available in many different con-

figurations. Custom panel quote requests may be forwarded 

to Customer Service through any authorized distributor.

Our “SES” Duplex panels feature a solid-state printed circuit 

board design with standard high level alarm circuits. Other 

standard features are: an auxiliary dry alarm contact for 

signaling a remote alarm and float switch position indicator 

lights.

INSTALLATION

Connect the pump(s) to the guide rail pump adapters or to 

the discharge piping. Slide rail bases should be anchored to 

the wetwell floor.

Complete all wiring per the control panel wiring diagrams 

and NEC, Canadian, state, provincial and/or local codes. 

This a good time to check for proper rotation of the motors/

impellers.

DO NOT PLACE HANDS IN PUMP    

SUCTION WHILE CHECKING        

MOTOR ROTATION. TO DO SO WILL 

CAUSE SEVERE PERSONAL INJURY.

Always verify correct rotation. Correct 

rotation is indicated on the pump casing. 

Three phase motors are reversible. It is 

allowable to bump or jog the motor for a 

few seconds to check impeller rotation. It 

is easier to check rotation before installing 

the pump. Switch any two power leads to 

reverse rotation.

Lower the pump(s) into the wetwell.

Check to insure that the floats will operate freely and not 

contact the piping.

OPERATION

Once the piping connections are made and checked you 

can run the pumps.

Piggyback Switch Operation –

 Plug the piggyback switch 

into a dedicated grounded outlet and then plug the pump 

into the switch. Test the pump by filling the wetwell until the 

pump goes On. If the pumps run but fail to pump, they are 

probably air locked, drill the relief holes per the instructions 

in the Piping Section.
Check the operating range to insure a minimum one minute 

run time and that the pump goes Off in the correct position.

Control Panel Operation –

 Fill the wetwell with clear water.

Use the pump H-O-A (Hand-Off-Automatic) switches in 

Hand to test the pumps.  If they operate well in Hand pro-

ceed to test Automatic operation. If the pumps run but fail to 

pump, they are probably air locked, drill the relief holes  per 

the instructions in the Piping Section.
Place Control Panel switch(es) in Automatic position and 

thoroughly test the operation of the ON, OFF, and Alarm 

SETTING THE FLOAT SWITCHES

There are no absolute rules for where to set the float switch

-

es, it varies from job to job.  

Suggested Rules to Follow:

All floats should be set below the Inlet pipe!

Off Float: Best:

 set so the water level is always above the top 

of the pump (motor dome). 

Next Best:

 set so the water level 

is not more than 6" below the top of the pump. 

On Float:

 set so the volume of water between the On and 

Off floats allows pumps of 1½ HP and under to operate for 1 

minute minimum. Two (2) HP and larger pumps should run 

a minimum of 2 minutes. Basin literature states the gallons of 

storage per inch of basin height. 

Lag/Alarm Float(s):

 should be staggered above the Off and 

On floats. Try to use most of the available storage provided 

by the basin, save some space for reserve storage capacity. 

See Diagrams and Charts in Float Switch Chart Section.

PANEL WIRING DIAGRAMS

Our control panels are shipped with instructions and wiring 

diagrams. Use those instructions in conjunction with this 

IOM. Electrical installation should be performed only by 

qualified technicians. Any problem or questions pertaining 

to another brand control must be referred to that control 

supplier or manufacturer. Our technical people have no 

technical schematics or trouble shooting information for 

other companies' controls.

ALARMS

We recommend the installation of an alarm on all Wastewa-

ter pump installations. Many standard control panels come 

equipped with alarm circuits. If a control panel is not used, 

a stand alone high liquid level alarm is available. The alarm 

alerts the owner of a high liquid level in the system so they 

can contact the appropriate service personnel to investigate 

the situation.

SINGLE PHASE PUMPS

Single phase (1Ø) pumps may be operated using a piggy-

back or hard wired float switch, a contactor, or a Simplex or 

Duplex control panel. 

See Figures 1 and 4.

All 

1

/

3

 and ½ HP, 115 or 230 volt pumps, and some ¾ and 1 

HP pumps, are supplied with plug style power cords. They 

may be plugged into piggyback float switches for simple 

installations. It is allowable to remove the plugs in order to 

hardwire or connect to a Simplex or Duplex controller. Re-

moving the plug neither voids the warranty nor violates the 

agency Listings. 

See Figure 4.

PLUG-CONNECTED UNITS MUST 

BE CONNECTED TO A PROPERLY 

GROUNDED, GROUNDING TYPE 

RECEPTACLE.
ON NON-PLUG UNITS, DO NOT 

REMOVE CORD AND STRAIN RELIEF. 

DO NOT CONNECT CONDUIT TO PUMP.

Pumps with bare lead power cords can be hard-wired to a 

float switch, wired to a 1Ø contactor, a Simplex controller or 

a Duplex controller. Always verify that the float switch is rated 

for the maximum run amperage, maximum starting amper-

age, and the HP rating on the pump. Single-phase wastewa-

ter pumps contain on-winding overloads, unless noted on 

the pump nameplate. 

See Figure 1.

WARNING

Hazardous voltage

can shock, burn or

cause death.

DANGER

Hazardous Machinery

!

Summary of Contents for Bell & Gossett WEHT0311M

Page 1: ...High Temp Sump Pump INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS INSTRUCTION MANUAL IM249R03...

Page 2: ...JECT PAGE Introduction 3 Safety Instructions 3 Performance and Motor Details 3 Pre Installation Checks 3 Lifting of Pump 4 Optional Guide Rail or Lift Out System 4 Piping 4 Wiring and Grounding 4 Sele...

Page 3: ...entdamage Failure tofollowmanufacturer sinstallationinstructionsmayresultin electricalshock firehazard personalinjuryordeath dam DANGER WARNING CAUTION agedequipment provideunsatisfactoryperformance a...

Page 4: ...prematuresealand orbearingwear If thepump isturningbackwardswhenitiscalledontostartthein creasedtorquemaycausedamagetothepumpmotorand ormotorshaftandsomesingle phasepumpsmayactually runbackwards Insta...

Page 5: ...bsoluterulesforwheretosetthefloatswitch es itvariesfromjobtojob SuggestedRulestoFollow AllfloatsshouldbesetbelowtheInletpipe Off Float Best setsothewaterlevelisalwaysabovethetop of thepump motordome N...

Page 6: ...vethepaperworkwiththeowneroratthe controlpanelif inadry securelocation FLOAT SWITCH AND PANEL CHART Thepurposeof thischartistoshowtherequiredswitch quantitiesandthefunctionof eachswitchinatypicalwaste...

Page 7: ...are based on readings taken with a megohmmeter with a 500V DC output Readings may vary using a lower voltage ohmmeter consult factory if readings are in question ENGINEERING DATA PUMP OPERATION Figur...

Page 8: ...lcordstangled Untanglecordsandinsurefreeoperation TURNOFF Pumpisairlocked Shutoff pumpforapproximatelyoneminute then restart Repeatuntilairlockclears If airlocking persistsinasystemwithacheckvalve a3...

Page 9: ...9 TYPICAL INSTALLATIONS Typical Effluent Sewage and Dewatering Pump Installations...

Page 10: ...10 NOTES...

Page 11: ...11 NOTES...

Page 12: ...Buyer with respect to any product or parts of a product that have been a repaired by third parties other than Seller or without Seller s written approval b subject to misuse misapplication neglect al...

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