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© Copyright 2020 Zoeller

®

 Co. All rights reserved.

 

          

COMMON CAUSES

B.  Motor overheats and trips overload or blows fuse.

 

-  Incorrect Voltage

 

 

-  Unbalanced power source

 

 

-  Incorrect motor rotation

 

 

-  Negative or low head

 

 

-  Excessive water temperature

 

 

-  Impeller, cutter, or seal mechanically bound

 

 

-  Defective capacitor or relay

 

 

-  Motor shorted

 

 

-  Lost one line in a Three Phase unit

C.   Pumps starts and stops too often.

 

-  Check valve stuck open

 

 

-   Level controls out of adjustment

 

 

-   Temperature sensor tripping

 

 

-  Thermal overload switch out of 

 

 

  adjustment or defective

 

 

-  Pit too small

D.   Pump will not shut off.

 

-  Debris clogging cutter mechanism.

 

 

-  Debris under float switch

 

 

-  Float travel obstructed

 

 

-  Defective or damaged float switch 

 

 

-  Magnetic starter contacts shorted

 

 

-  Air lock - check vent hole

E.   Pump operates but delivers little or no water.

 

-  Check for plugged cutter, pump housing, 

 

 

  pipe or sticking check valve

 

 

-  Vent hole clogged or not drilled

 

 

-  Discharge head exceeds pumps capacity

 

 

-  Low or incorrect voltage

 

 

-   Incorrect motor rotation

 

 

-  Defective capacitor

F.   Drop in head and/or capacity after a period or use.

 

-  Increase Pipe Friction

 

 

-  Clogged line or check valve

 

 

-  Abrasive material & chemical, 

 

 

  deteriorated impeller and pump housing

If the above check list does not uncover the problem, consult the factory - Do not attempt to service or otherwise disassemble pump.

Service Checklist & Trouble Shooting

 

Steps 

Check Voltage At 

If No Voltage 

If Voltage

 

No. 1 

Line terminals in pump's 

Check Disconnect switch, line 

Proceed to No. 2

 

 

control panel 

fuse, and/or circuit breakers 

  

L

1

 - L

2

 - L

3

 (3 Phase) 

in power supply circuit.

 

No. 2 

Pump motor terminals in 

Check for control circuit 

Check starting relay 

 

 

pump’s control panel  

voltage. Check out magnetic 

and capacitor (1 

  

T

1

 - T

2

 - T

3

 

starter contacts, thermal 

phase units). Check

    

 

overloads, and float switches 

pump for ground, 

 

 

 

 

and binding impeller

 ELECTRICAL PRECAUTIONS

  Before servicing a pump, always shut off the main power breaker to the panel and then 

disconnect the pump - making sure you are wearing insulated protective sole shoes and are not standing in water. Under flooded condi

-

tions, contact your local electric company or a qualified licensed electrician for disconnecting electrical service prior to pump removal. 

 

CONDITION

A.   Pump will not start or run.

Содержание X71 Series

Страница 1: ...1 Limited Warranty 2 Preinstallation Information 3 Electrical Data 3 Typical Sewage Installation 4 Pump Wiring Instructions 5 6 Operation 7 Maintenance 7 Service Checklist 8 Safety Instructions TO AVOID SERIOUS OR FATAL PERSONAL INJURY OR MAJOR PROPERTY DAMAGE READ AND FOLLOW ALL SAFETY INSTRUCTIONS IN THIS MANUAL AND ON THE PUMP THIS MANUAL IS INTENDED TO ASSIST IN THE INSTALLATION AND OPERATION ...

Страница 2: ...ment parts For additional information pertaining to our warranty or if service cannot be obtained locally contact Zoeller Engineered Products 3649 Cane Run Road Louisville Kentucky 40211 1961 Attn Customer Service ZOELLER ENGINEERED PRODUCTS EXPRESSLY DISCLAIMS LIABILITY FOR SPECIAL CONSEQUENTIAL OR INCIDENTAL DAMAGES OR BREACH OR EXPRESSED OR IMPLIED WARRANTY AND ANY IMPLIED WARRANTY OF FITNESS F...

Страница 3: ...in in detail the requirements for the installation and wiring of electrical equipment in hazardous locations 1 Not for use in acidic atmospheres 2 Do not lift carry or hang pump by the electrical cables Damage to the electrical cables can cause shock burns or death 3 Make sure there is a properly grounded connection available All pumps are furnished with provisions for proper grounding to help pro...

Страница 4: ...ble electrical and plumbing codes including but not limitedto NationalElectricalCode local regional and or state plumbing codes etc ZEPA0560 1 Electrical wiring and protection must be in accordance with the National Electrical Code per NEC articles 500 through 503 for installation in Class I Division 1 Group C D Class I Zone 1 Groups IIA IIB locations and any other applicable state and local elect...

Страница 5: ...rcuit in the seal cavity where 2 seal leak probes are housed An indicator light will activate whenever water is present in the cavity Whenever the seal leak light is activated indicating that the lower seal has failed the pump should be removed and serviced in order to avoid damage to the motor 3 The green wire shall be connected to a ground lug in the panel CONTROL PANELS These pumps require a co...

Страница 6: ...a control panel with level control is required Follow the instructions provided with the panel to wire the system Before installing a pump check the pump rotation to insure that wiring has been connected properly to power source and that the green lead of power cord See wiring diagram is connected to a valid ground Momentarily energize the pump observing the directions of kick back due to starting...

Страница 7: ...sired location of each float function Valves Dischargevalvesshouldbeplacedinthefullyopenposition Systems shouldnotbeoperatedforextendedperiodsoftimewiththedischarge valves partially closed due to damaging the valve SHUTDOWN PROCEDURES If a system is shutdown for more than six months the following is recommended Pumps If pit is to remain dry then the pump can remain in the pit With the pumpinthepit...

Страница 8: ...in head and or capacity after a period or use Increase Pipe Friction Clogged line or check valve Abrasive material chemical deteriorated impeller and pump housing If the above check list does not uncover the problem consult the factory Do not attempt to service or otherwise disassemble pump Service Checklist Trouble Shooting Steps Check Voltage At If No Voltage If Voltage No 1 Line terminals in pu...

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