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© Copyright 2022 Zoeller

®

 Co. All rights reserved.

All installations must comply with all applicable electrical and plumbing codes, including, but not limited to, National Electrical Code, local, regional, and/
or state plumbing codes, etc.

TYPICAL OUTDOOR CONCRETE BASIN WITH VALVE BOX AND HINGED ACCESS COVERS

Typical Sewage/Waste Pumping System Installation

7

4

4

7

3

16

1

10

6

12

9

6

13

2

10

14

15

8

11

ZEPA0621

 

(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 Group C & D Class I, Zone 1, Groups IIA & IIB  
locations, and any other applicable state and local electrical requirements.

 

(2)   Install proper full flow check and shut-off valve.

 

(3)   Install proper controls. (Outdoor panels 

require

 

NEMA 3R or 4X enclosure). 

Intrinsically safe level sensors are required.

 

(4)   All installations 

require

 a basin cover to prevent debris from falling into the 

basin and to prevent accidental injury.

 

(5)   Cords must be properly sealed per NEC articles 500 through 503 for installation 

in Class I, Division 1, Group C & D Group C & D Class I, Zone 1, Groups IIA 
& IIB locations, to prevent moisture and gases from entering the control 
panel.

 

(6) 

 

When check valve is installed,

 

drill a 3/16” diameter hole in the discharge 

pipe below the check valve even with the top of the pump. NOTE: The hole 
must be below the basin cover and cleaned periodically. Water stream will 
be visible from this hole during pump run periods. Also a vent hole is drilled 
in the pump housing. Be sure that this hole is cleared during any servicing.

 

(7)   Vent gases and odors to the atmosphere through vent pipe per Local and 

State codes.

 

(8)   Secure power cord to avoid entanglement with variable level float switch 

mechanism.

 

(9)  

Do not 

reduce pump discharge pipe below 4” IPS size.

  (10)   Basin 

must

 be in accordance with all applicable codes

 

  and specifications. Basin must be sized to allow a minimum 3 minute 

lapse time between starts.

  (11)   Pump must be level and the tethered variable level float switch must be 

free and not hang up on pump or pit peculiarities.

 (12) 

If

 a rail system is used, it should be non-sparking. Discharge elbow 

must

 

be firmly anchored to the bottom of basin. In fiberglass basin, the bottom 

will need to be reinforced if the discharge elbow is used.

 (13) 

If

 a rail system is used, it should be non-sparking. The guide rails 

are schedule 40 pipe. Brass, stainless steel or galvanized steel is 
recommended.

  (14)   Install choker and cable for lifting pump from pit.

  (15)   Basin must be clean and free of debris after installation.

  (16)  Cords must be properly sealed to prevent moisture and gases from 

entering the control panel.

 

Summary of Contents for EX6220

Page 1: ...w the steps and procedures listed on ZM1074 for a proper start up and warranty protection Many items contained within when followed correctly will not only ensure a long and problem free life for the pump but also save time and money during installation Should further assistance be necessary please call our Technical Service Department at 1 800 928 PUMP 7867 Safety Instructions CAUTION TO AVOID SE...

Page 2: ...ctured at Zoeller Engineered Product s option provided however that by so doing we shall not be obligated to replace an entire assembly the entire mechanism or the complete unit Major components and controls not manufacturedbythecompanyarecoveredbytheoriginalmanufacturerwarranty in lieu of this warranty This warranty shall not apply to any product or part of a product including pumps controls lift...

Page 3: ...oper grounding to help protect you against the possibility of electrical shock 3 Makecertainthatthecontrolboxis within thereach ofthepump s power supply cord DO NOT USE AN EXTENSION CORD Extension cords that are too long or too light do not deliver sufficient voltage to the pump motor But more important they could present a safety hazard if the insulation were to become damaged or the connection e...

Page 4: ... valve is installed drill a 3 16 diameter hole in the discharge pipe below the check valve even with the top of the pump NOTE The hole must be below the basin cover and cleaned periodically Water stream will be visible from this hole during pump run periods Also a vent hole is drilled in the pump housing Be sure that this hole is cleared during any servicing 7 Vent gases and odors to the atmospher...

Page 5: ... sensors are normally closed and mounted adjacent to the motor windings If internal temperatures exceed a maximum limit the pump will deac tivate when the red and orange wires are connected in series to the control coil of the motor starter circuit The pump is able to restart once the motor cools down Continued deactivation of this circuit requires the attention from maintenance personnel 2 The bl...

Page 6: ...ecified at time of initial pump order and are not available for field installation Sensor wire colors are as shown TYPICAL 3 PHASE WIRING DIAGRAM RefertoSensorandControlPanelsectionsonpage5 ZEPA0036 ZEPA0038E Single Phase Installation All single phase models require start capacitor run capacitor and relay in the circuit to start and operate properly These components can be purchased separately or ...

Page 7: ...t 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 itshouldbeoperatedforfivem...

Page 8: ...rect Voltage Unbalanced power source Incorrect motor rotation Negative or low head Excessive water temperature Impeller 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 ...

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