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© Copyright 2008 Zoeller Co. All rights reserved.

LIMITED WARRANTY

1.  Zoeller 820 Grinder Pumps are designed for grind ing 

and pumping sewage from single family res i den tial 
and commercial duty sew age pump stations.  The 
pump is in tend ed to grind and pump reasonable 
quan ti ties of items normally found in residential 
sewage.

2. Zoeller 820 Grinder Pumps can be installed in 

new applications or as a direct replacement for 

any grinder application of like size and ca pac i ty.

3. Refer to the Zoeller models 810 and 815 when 

retro

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 tting  ex ist ing positive displacement pump 

in stal la tions.

Applications

all applications other than raw sewage pumping applications.  
The warranty set out in the paragraph above is in lieu of all other 
warranties expressed or implied; and we do not authorize any 
representative or other person to assume for us any other liability 
in connection with our products.

Contact Manufacturer at, 3649 Cane Run Road, Lou is ville, 
Ken tucky    40211,  Attention:  Cus tom er  Ser vice  De part ment  to 
obtain any need ed repair or re place ment of part(s) or additional 
in for ma tion pertaining to our warranty.

MANUFACTURER  EXPRESSLY  DIS CLAIMS  LI A BIL I TY  FOR 
SPE CIAL,  CON SE QUEN TIAL  OR  IN CI DEN TAL  DAM AG ES  OR 
BREACH OF EX PRESSED OR IMPLIED WARRANTY; AND 
ANY IMPLIED WAR RAN TY OF FIT NESS FOR A PAR TIC U LAR 
PUR POSE  AND  OF  MER CHANT ABIL I TY  SHALL  BE  LIM IT ED 
TO THE DU RA TION OF THE EX PRESSED WAR RAN TY.

Some states do not allow limitations on the duration of an implied 
warranty, so the above limitation may not apply to you. Some 
states do not allow the exclusion or limitation of incidental or 
con se quen tial  dam ag es,  so  the  above  lim i ta tion  or  exclusion 
may not apply to you.

This warranty gives you speci

fi

 c legal rights and you may also 

have other rights which vary from state to state.

Manufacturer warrants, to the purchaser and subsequent owner 
during the warranty period, every new product to be free from 
defects in material and workmanship under normal use and 
service, when properly used and maintained, for a period of one 
year from date of purchase by the end user, or 18 months from 
date of original manufacture of the product, whichever comes 

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 rst.  Parts that fail within the warranty period, one year from 

date of purchase by the end user, or 18 months from the date of 
original manufacture of the product, whichever comes 

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 rst, that 

inspections determine to be defective in material or workmanship, 
will be repaired, replaced or remanufactured at Manufacturer's 
option, provided however, that by so doing we will not be obli-
gated to replace an entire assembly, the entire mechanism or the 
complete unit.  No allowance will be made for shipping charges, 
damages, labor or other charges that may occur due to product 
failure, repair or replacement.

This warranty does not apply to and there shall be no warranty 
for any material or product that has been disassembled without 
prior approval of Manufacturer, subjected to misuse, misap-
plication, neglect, alteration, accident or act of God; that has 
not been installed, operated or maintained in accordance with 
Manufacturer's installation instructions; that has been exposed 
to outside substances including but not limited to the following:  
sand, gravel, cement, mud, tar, hydrocarbons, hydrocarbon deriva-
tives (oil, gasoline, solvents, etc.), or other abrasive or corrosive 
substances, wash towels or feminine sanitary products, etc. in 

Summary of Contents for 820

Page 1: ...n Table of Contents Safety Instructions 1 Limited Warranty 2 Preinstallation Checklist 3 General Information 4 Pump Wiring Instructions 5 Typical Indoor Prepackaged System 6 Indoor Prepackaged Installation Instructions 7 Typical Outdoor Prepackaged System 8 Outdoor Prepackaged Installation Instructions 9 Operation 10 Cutter Maintenance 11 Service Checklist 12 Safety Instructions TO AVOID SERIOUS O...

Page 2: ...equential 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 Manufacturer warrants to the purchaser and subsequent owner during the warranty period every new product to be free from defects in material and workmanship under normal use and service when properly used and mai...

Page 3: ...1 Make sure the power source is capable of handling the electrical requirements of the grinder pump as indicated on the nameplate 2 A disconnect switch should be installed ahead of the pump 3 If Grinder pumps are operated by control panels with vari able level float control switches it is the responsibility of the installing party that float control switches will not hang up on the grinder pump or...

Page 4: ... system installation 3 All electrical connections including pump to control box and power supply to control panels must comply with the National Electrical Code and applicable local codes Conduit and panel enclosure openings must have a gas and watertight seal Installation of electrical panels conduit and connections should be made by a qualified licensed electrician A UL Listed potting kit P N 10...

Page 5: ...duit directly to pump Pump Wiring Instructions Installation and checking of electrical circuits and hardware should be performed by a qualified licensed electrician 010415 AUTOMATIC WIRING DIAGRAM MODELS WD820 and WH820 010443 NONAUTOMATIC WIRING DIAGRAM MODELS E820 and I820 FIGURE 4 FIGURE 5 Models WD WH are fully automatic A float switch is included and factory wired in the pump circuit to provi...

Page 6: ...0 X 1 4 STEEL CORD SEAL INSPECTION PLATE 3 GROMMET SEAL SWITCH CORD ALARM FLOAT BASIN COVER LIFTING BOLT 16 X 1 4 STEEL 5 16 304 STAINLESS STEEL PUMP PLATE PUMP POWER CORD ON FIELD INSTALLED ALARM 4 FIBERGLASS HUB CAST IRON ADAPTERS OFF 24 NOMINAL TO ALARM PANEL BALL VALVE FIELD INSTALLED GALVANIZED PIPE 1 1 4 X 32 GALVANIZED PIPE 1 1 4 X 12 GRINDER PUMP SINGLE PHASE 2HP 1 1 4 GROMMET SEAL FIELD I...

Page 7: ...very low traffic area within 15 of the power disconnect The hole should be at least 8 larger in diameter than the basin in order to leave 4 of backfill all the way around the perimeter A minimum of 4 of compacted subbase is also required Backfill and subbase should be 1 8 to 3 4 pea gravel or 1 8 to 1 2 crushed stone Also reference the basin installation instructions included with the unit 6 The 4...

Page 8: ...EL PULL ROD 3 8 X 1 416 STAINLESS ALARM FLOAT HIGH LEVEL DISCHARGE FITTING 1 1 4 BULK HEAD FIELD INSTALLED 4 RUBBER INLET PIPE SEAL 28 MIN OR PER STATE AND LOCAL CODES COUPLING TO CONTROL PANEL HIGH WATER ALARM FIELD INSTALLED 60 OTHER BASIN SIZES ARE READILY AVAILABLE Typical Outdoor Grinder Pumping System Installation All installations must comply with all applicable electrical and plumbing code...

Page 9: ...lant and hardware provided 6 The bottom of the excavation can now be properly backfilled compacted and leveled Set basin in hole Ensure the removable cover extends above the finished grade line and the grade slopes away from the unit Backfill and subbase should be 1 8 3 4 pea gravel or 1 8 1 2 crushed stone Reference basin installation instructions included with unit Connect the 4 inlet pipe to th...

Page 10: ...nd securely installed Floats positioned properly Discharge valves open 3 16 vent hole drilled in pipe between check valve and pump Once the above has been verified proceed with the following checks Pump power cables and control floats properly installed and voltage verified Conduit connections to panel and junction box are properly sealed After installing the pump into the containment area with ad...

Page 11: ...vethespacer shims located behind the star cutter 5 Remove the three cap screws holding the disc and remove disc from the pump 6 The disc and star cutter can be replaced with new service partsorresurfacedbygrinding Resurfacingisaccomplished by surface grinding both disc and star cutter to a 32 micro finish Do not attempt grinding in the field Send parts to a qualified machine shop or return to the ...

Page 12: ...t system for proper operations Repair and service should be performed by a Zoeller Pump Company Authorized Service Station only SAFETY PROCEDURES For your protection always disconnect pump and panel from its power source before handling Never enter the basin until it has been properly vented and tested Any person entering a basin should be wear ing a harness with safety rope extending to the surfa...

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