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© Copyright 2008 Zoeller Co. All rights reserved.

MIN. "OFF" LEVEL

RUN

O.L.

MOTOR

(3)

BLUE

RED

BLACK

GREEN

L1

L2

START

(1)

(2)

YELLOW

RED

R

RELAY

(WHITE)

(BLACK)

YELLOW

(BROWN)

BLUE

1

5

2

WHITE

CAPACITOR

START

WHITE

BLACK

BLACK

CAPACITOR

RUN

RUN

O.L.

MOTOR

(3)

BLUE

RED

FLOAT 

BLACK

GREEN

L1

L2

START

(1)

(2)

YELLOW

RED

R

RELAY

(WHITE)

(BLACK)

YELLOW

CAPACITOR

(BROWN)

BLUE

WHITE

1

5

2

BLACK

WHITE

CAPACITOR

START

RUN

BLACK

WHITE

BLACK

22" MAX.

5" MIN.

20 AMP SWITCH 

(

WD & WH MODELS

)

  

FOR YOUR PROTECTION, ALWAYS DISCONNECT THE PUMP FROM ITS POWER SOURCE BEFORE HANDLING.

 

Single phase automatic pumps are supplied with a 3-prong grounded plug to help protect you against the possibility of electrical shock.  

DO NOT UNDER ANY CIRCUMSTANCES REMOVE THE GROUND PIN.

  The 3-prong plug must be inserted into a mating 3-prong 

grounded receptacle.  If the installation does not have such a receptacle, it must be  wired and grounded in accordance with the National Electri-
cal Code and all applicable local codes and ordinances.  

 

 

“Risk of electrical shock”  

Do not remove the power supply cord and strain relief or connect conduit directly to pump.

Pump Wiring Instructions

Installation and checking of electrical circuits and hardware should be performed by a quali

fi

 ed 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 

fl

 oat switch is in clud ed and fac to ry wired in the pump circuit to provide automatic operation once the 

fl

 oat switch is 

secured prop er ly to the outlet pipe. Use the di a gram above to secure the 

fl

 oat switch properly and obtain the proper tether to cus tom ize the on-off cycle to each 

application. Note the minimum off level shown above.  On Prepackaged Systems, the tether length is set at 5”.

Determining Pumping Range

in Inches (1 inch - 2.5 cm)

Tether Length 

5  10  15 20 22

Pumping Range 

9  13.5 18 22 24

Use only as a guide. Due to weight of 

ca ble,  pump ing  range  above  hor i zon tal 

is not equal to pumping range be low 

hor i zon tal. Ranges are based on test ing in 

nonturbulent con di tions. Range may vary 

due to water tem per a ture and cord shape. 

As teth er length in creas es, so does the 

vari ance of the pump ing range.

Note: 

Failure to keep within proper teth er limits may 

pre vent reliable switch op er a tion.

Note: 

Cable must be mounted in hor i zon tal position.

SK2304

min.

max.

SK305D

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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