Zoeller 7020 Owner'S Manual Download Page 5

5

© Copyright 2020 Zoeller

®

 Co. All rights reserved.

All installations must comply with all applicable electrical and plumbing codes, including but not limited to the National Electrical Code, local, regional 

and/or state plumbing codes, etc.

TYPICAL OUTDOOR GRINDER PUMPING SYSTEM INSTALLATIONS

FIGURE 4A - PACKAGED SYSTEM WITH

FLEXIBLE HOSE DISCONNECT

SK2540

SK3091

FIGURE 4B - PACKAGED SYSTEM WITH

Z-RAIL

®

 DISCONNECT SYSTEM

SK2533

6-5/8” (143 mm)

8-3/8”

(213 mm) 

5-1/4”

(133 mm)

4-3/8”

(111 mm)

10-1/2”
(267 mm)
DIA.

22-3/8” (568 mm)

4” (103 mm)

FIGURE 5

1-1/4" NPT

ANTI-SIPHON

VALVE

1-1/4" NPT CHECK VALVE

DISCONNECT

1-1/4" SHUT OFF VALVE

(HOME OWNER)

(JWA)

CURB/VALVE

BOX

CHECK VALVE

SHUT OFF

VALVE

MAIN

OPTIONAL LOCATION

1-1/4" NPT ANTI-SIPHON

VALVE

POSITIVE DISPLACEMENT

GRINDER PUMP

1-1/4" DISCHARGE LINE

FIGURE 5A

SK2810

24" (60.9 cm)

MINIMUM

ANTI FLOATATION RING

1-1/4" NPT BRASS CHECK VALVE

SHUT-OFF BALL VALVE

ALARM FLOAT

PUMP CONTROL FLOAT

12" (30.4 cm) MIN. OFF LEVEL

FIBERGLASS BASIN

1/8" (3 mm) 302 STAINLESS

STEEL LIFTING CABLE

1-1/4" FLEXIBLE 

DISCONNECT FITTING

1-1/4" BULK HEAD

DISCHARGE FITTING

24" (60.9 cm)

SOLID FIBERGLASS

COVER

GROMMET SEAL

4" INLET W-SEAL

(FIELD INSTALLED)

MINIMUM

60" (152 cm)

DISCHARGE HOSE

HIGH WATER ALARM

(NOT INCLUDED)

WATERTIGHT "QWIK BOX"

(NOT INCLUDED)

FLOAT TREE

48" (122 cm)

72" (183 cm)

1-1/4" SCH 80 PVC PIPE

BRASS ANTI-SIPHON VALVE

1-1/4" MALE NPT THREAD X SLIP FITTING

1-1/4" MALE NPT THREAD X 
SLIP FITTING

2" PVC ELECTRICAL PIPE 

R

LOUISVILLE, KY

PIPE SEAL

24" MIN.

4" RUBBER INLET

(FIELD INSTALLED)

ANTI-FLOTATION 

FIBERGLASS

DISCHARGE FITTING

1-1/4" BULK HEAD

ALARM FLOAT

1-1/4" CHECK VALVE

1-1/4" DISCHARGE PIPE

HIGH LEVEL

1-1/4" BALL VALVE

FIBERGLASS BASIN

"ON - OFF" FLOAT

PUMP CONTROL

PIPE AND FITTINGS

1-1/4" PVC SCH 80

FLOAT TREE ASSEMBLY 

STEEL LIFTING CABLE

1/8" 302 STAINLESS

1-1/4" PVC PIPE

FLANGE

3/4" GUIDE RAIL

ANTI-SIPHON VALVE (OPTIONAL)

1-1/4" H X 1-1/4" Z-RAIL
DISCONNECT SYSTEM, EPOXY
COATED DUCTILE IRON

2" TO 1-1/4" REDUCER

SIMPLEX CONTROL PANEL

(FIELD INSTALLED)

Summary of Contents for 7020

Page 1: ...nufacturer s recommendations Table of Contents Safety Instructions 1 Limited Warranty Checklist and Application 2 3 General Information 3 Pump Wiring Instructions 4 Typical Outdoor Prepackaged System 5 Installation and Operation Instructions 6 Maintenance 7 Service Checklist 8 MAIL TO P O BOX 16347 Louisville KY 40256 0347 SHIP TO 3649 Cane Run Road Louisville KY 40211 1961 502 778 2731 1 800 928 ...

Page 2: ...1 Grinder Pumps can be retrofitted to existing positive displacement pump installations APPLICATIONS PREINSTALLATION CHECKLIST 1 Inspectyourprogressingcavitygrinderpump Iftheunithasbeendamaged in shipment contact your dealer before installing Do Not remove the test plugs in the cover or the motor housing 2 Carefullyreadallliteraturetofamiliarizeyourselfwithdetailsregarding installation and use Ret...

Page 3: ...ressing cavity grinder pump is an intermittent duty pump designedforpumpingsanitarysewage Itisnotadewateringortrash pump 018330ZEP 0 2 4 6 8 10 12 14 16 0 20 40 60 80 100 120 140 160 180 200 260 PUMP PERFORMANCE CURVE MODEL 7020 7021 8 16 24 32 40 48 56 64 GALLONS LITERS METERS FEET TOTAL DYNAMIC HEAD FLOW PER MINUTE 220 240 72 20 40 60 10 20 30 40 50 60 70 80 90 100 110 0 PSIG TOTAL DYNAMIC HEAD ...

Page 4: ...6 MIN OFF Electrical Data Amps KVA Code Winding Resistance Line to Line Model BHP RPM Voltage Phase Hertz Full Load Shut Off Locked Rotor E7020 1 1750 230 1 60 7 0 7 0 24 5 G 2 3 2 0 E7021 2 1750 230 1 60 10 5 10 5 44 0 B 1 80 1 60 RE RWD7020 1 1750 230 1 60 7 0 7 0 24 5 G RE RWD7021 2 1750 230 1 60 10 5 10 5 44 0 B I7021 2 1750 200 1 60 12 12 49 5 B 1 4 1 3 RI RWH7021 2 1750 200 1 60 12 12 49 5 B...

Page 5: ...L VALVE ALARM FLOAT PUMP CONTROL FLOAT 12 30 4 cm MIN OFF LEVEL FIBERGLASS BASIN 1 8 3 mm 302 STAINLESS STEEL LIFTING CABLE 1 1 4 FLEXIBLE DISCONNECT FITTING 1 1 4 BULK HEAD DISCHARGE FITTING 24 60 9 cm SOLID FIBERGLASS COVER GROMMET SEAL 4 INLET W SEAL FIELD INSTALLED MINIMUM 60 152 cm DISCHARGE HOSE HIGH WATER ALARM NOT INCLUDED WATERTIGHT QWIK BOX NOT INCLUDED FLOAT TREE 48 122 cm 72 183 cm 1 1...

Page 6: ...in installation reference guide on more specific requirements 11 Note The progressing cavity grinder basin is a sewage holding tank Vent connection should be installed in accordance with all national state and local plumbing codes 12 Dig a trench for the electrical conduit Trench should be located at least 18 deep and follow all applicable NEC codes Connect electrical wiring to Junction box accord...

Page 7: ... is located and replace disc and retainer screws Torque to 63 67 in lbs Replace cutter with the correct shims Install washerandtorquehexheadboltto71 75in lbs applyLoctite262thread lock sealant or equal to bolt threads prior to insertion Check running clearance withpumpinverticalpositiontoremoveendplay Clearancemustbebetween 0 007 and0 012 toobtainefficientgrindingwhenpumpisputbackinservice 8 Check...

Page 8: ...long service life from the product Provided is a suggested maintenance schedule Every year Inspect basin report any sighting of grease accumulation Check for proper and unobstructed float operation Listen for proper check valve operation Every 8 years or 2 000 hours of operation Remove pump inspect and service using a Zoeller rebuild kit Flush and clean basin If the above checklist does not reveal...

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