Zoeller 7011 User manual

1
© Copyright 2015 Zoeller®Co. All rights reserved.
ZM2609_Ec
0715
Supersedes
0611
NOTICE TO INSTALLER: Instructions must remain with installation.
Model Number: ______________ Date Code: _______________
Simplex  Duplex
Packaged System Field Assembled System
Job Name: ____________________________________________
Distributor: ____________________________________________
Date of Purchase: _________ Zoeller S/O No.: ______________
Contractor: ____________________________________________
Date of Installation: ____________________________________
System Readings During Start-up: Voltage _____ Amps ______
OWNER’S MANUAL
MODELS 7011, 7012 & 7013 SUBMERSIBLE GRINDER UNITS
aid in the ownership of a Zoeller submersible wastewater
product. Please read and review this manual before
installing the product. Follow the steps in this manual
for a proper start-up. 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 Product
Support Department at [phone] or email:
[e-mail].
Owner’s Information
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 OF THIS UNIT AND MUST BE KEPT WITH
THE PUMP.
This is a SAFETY ALERT SYMBOL.
When you see this symbol on the pump or in the
manual, look for one of the following signal words
and be alert to the potential for personal injury or
property damage.
Warns of hazards that WILL cause serious personal
injury, death or major property damage.
Warns of hazards that CAN cause serious personal
injury, death or major property damage.
Warns of hazards that CAN cause personal injury
or property damage.
INDICATESSPECIALINSTRUCTIONS WHICHARE
VERY IMPORTANT AND MUST BE FOLLOWED.
THOROUGHLY REVIEW ALL INSTRUCTIONS AND WARNINGS
PRIOR TO PERFORMING ANY WORK ON THIS PUMP.
MAINTAIN ALL SAFETY DECALS.
PUMPS WITH THE “UL” MARK AND PUMPS WITH THE “US”
MARK ARE TESTED TO UL STANDARD UL778. CSA CERTIFIED
PUMPS ARE CERTIFIED TO CSA STANDARD C22.2 NO. 108.
CAUTION
Table of Contents
Safety Instructions ....................................................................... 1
Limited Warranty and Application .............................................. 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
REFER TO WARRANTY ON PAGE 2.
CongratulationsonthepurchaseofaZoellersubmersible
grinderpump. Since 1939, thenameZoellerhasrepresented
thestandard for submersibledewateringandsewagepumps.
The same high quality workmanship and easy maintenance
design has been incorporated into this line of heavy-duty
submersible grinder pumps. This Zoeller pump will provide
years of trouble-free service when installed according to the
manufacturer’s recommendations.
This manual incorporates the installation, operation,
maintenance, and service instructions into one document to
50/60Hz
Product information presented
here reects conditions at time
of publication. Consult factory
regarding discrepancies or
inconsistencies.
MAIL TO: P.O. BOX 16347 • Louisville, KY 40256-0347 USA
SHIP TO: 3649 Cane Run Road • Louisville, KY 40211-1961 USA
[phone] • FAX [phone]
visit our web site:
zoellerengineered.com

2
© Copyright 2015 Zoeller®Co. All rights reserved.
than in 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, Louisville, Kentucky
40211, USA Attention: Customer Service Department to obtain any
needed repair or replacement of part(s) or additional information
pertaining to our warranty.
MANUFACTURER EXPRESSLY DISCLAIMS LIABILITY FOR
SPECIAL, CONSEQUENTIAL OR INCIDENTAL DAMAGES OR
BREACH OF EXPRESSED OR IMPLIED WARRANTY; AND ANY
IMPLIED WARRANTY OF FITNESS FORAPARTICULAR PURPOSE
ANDOFMERCHANTABILITYSHALLBELIMITEDTOTHEDURATION
OF THE EXPRESSED WARRANTY.
Somestatesdo notallow limitationsonthe durationof animplied warranty,
so the above limitation may not apply to you. Some states do not allow
the exclusion or limitation of incidental or consequential damages, so
the above limitation or exclusion may not apply to you.
This warranty gives you specic legal rights and you may also have
other rights which vary from state to state.
LIMITED WARRANTY
Manufacturer warrants, to the purchaser and subsequent owner during
thewarranty period, everynew product to befree from defectsin 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 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 rst, that
inspections determine to be defective in material or workmanship, will be
repaired,replaced or remanufacturedat Manufacturer's option, provided
however, that by so doing we will not be obligated 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
ofManufacturer, subjected tomisuse, misapplication, neglect,alteration,
accidentor actof God; thathas notbeen installed, operatedor maintained
inaccordance with Manufacturer'sinstallation instructions; thathas been
exposed to outside substances including but not limited to the following:
sand, gravel, cement, mud, tar, hydrocarbons, hydrocarbon derivatives
(oil, gasoline, solvents, etc.), or other abrasive or corrosive substances,
wash towels or feminine sanitary products, etc. in all applications other
APPLICATIONS
1. Zoeller Grinder Pumps are designed for grinding and
pumping sanitary sewage from submersible lift stations.
The pump is intended to grind and pump reasonable
quantities of items normally found in sanitary sewage
applications.
2. Zoeller 7011, 7012 and 7013 Grinder Pumps can be
installed in new applications or as a direct replacement
for any grinder application of like size and capacity.
Some rail system retrot kits are available.
3. The 7011, 7012 and 7013 can be installed in a
Prepackaged Job Ready System or may be used in a
Field Assembled basin package. Pages 6 and 8 show
a couple of Prepackaged Systems. Field Assembled
Systems are discussed on pages 3 and 4.
4. Zoeller 7011, 7012 and 7013 Grinder Pumps can be
retrotted to existing positive displacement pump
installations.
*Zoeller Company does not recommend a simplex station on anything over two homes in order to maintain continuous service during unusual conditions.
Recommended Limits of Application 7000 Series Grinder Pumps
These recommended application limits are for pump stations pumping to a gravity main. Low-pressure pipe systems should be designed with a
pump located at each house. For applications where a lift station would handle between 15 and 60 homes, consider the 71 Series grinder pump.
For applications where a lift station would handle more than 60 homes, a solids handling type pump should be considered.
Simplex Station Duplex Station
Model Homes m3/day Homes m3/day
7011 w/o Reversing Control 2* 3 10 15
7011 w/ Reversing Control 2* 3 15 23
7012 2* 3 10 15
7013 2* 3 10 15

3
© Copyright 2015 Zoeller®Co. All rights reserved.
Preinstallation Checklist
SEE BELOW FOR LIST OF WARNINGS
CAUTION
SEE BELOW FOR LIST OF CAUTIONS
1. Inspect your grinder pump. If the unit has been damaged in
shipment, contact your dealer before installing. Do Not remove the
test plug in the cover nor the motor housing.
2. Carefully read all literature to familiarize yourself with details
regarding installation and use. Retain materials for future reference.
1. Make sure pump connection contains a ground terminal. The
power cord on all Zoeller Grinder Pumps contains a green conductor for
grounding to help protect you against the possibility of electric shock.
2. Make certain the electrical service is within reach of the power
supply cord.
3. Make sure any panels and branch circuits are equipped with
proper size fuses and circuit breakers. An independent power circuit
is recommended, sized according to the Governing Electrical Code,
for the current shown on the grinder pump nameplate.
4. For your protection, always disconnect the power source to the
grinder pump before handling. All grinder pumps must be properly
groundedand wired inaccordance with theGoverning Electrical Codes
and all local codes and ordinances.
5. Installation of electrical hardware and checking of control panels
and circuits should be performed by a qualied licensed electrician.
6. Risk of electrical shock - These pumps have not been investigated
for use in swimming pool areas.
7. The appliance is not intended for use by persons (including children)
with reducedphysical,sensoryormentalcapabilities,orlackofexperience
and knowledge, unless they have been given supervision or instruction to
concerning use of the appliance by a person responsible for their safety.
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. The Grinder pumps are operated by control panels with variable level
oat control switches. It is the responsibility of the installing party to
see that oat control switches will not hang up on the grinder pump
or other pit peculiarities and are secured so that the grinder pump
will shut off. It is recommended to use rigid pipe and ttings and
the pit be 24" (610 mm) in diameter for simplex systems and 36"
(91 cm) in diameter for duplex systems or larger.
4. Grinder installations should be checked yearly for debris and/or build
up which may interfere with the “ON” or “OFF” positions of variable
level oat control switches. Repair and service, other than cutter
assembly maintenance, should be performed by Zoeller Engineered
Products authorized service stations only.
5. Maximum operating temperature must not exceed 130°F,
(54°C).
6. Pump and float switch electrical connections must be
permanently installed, operational and protected from
submergence.
7. Junction box conduit must be installed with watertight
connection. Zoeller junction boxes include a UL Listed potting
kit for sealing the conduit. Failure to properly install this sealant
material could void warranty.
Electrical Data
Amps KVA
Code
Winding
Resistance
Line-to-Line
Model RPM Voltage Phase Hertz Full Load In Air Shut O󰀨 Locked
Rotor
AK7011 2800 380 3 50 4.4 1.6 2.8 18 G 9.7
I7011 3450 200 1 60 20.0 6.6 12.1 60 H 1.0 / 1.5
E7011 3450 230 1 60 17.2 4.0 10.9 56 F 1.3 / 4.0
J7011 3450 200 3 60 12.3 3.7 7.7 54 L 1.9
F7011 3450 230 3 60 10.8 3.3 6.9 42 K 2.4
K7011 3450 380 3 60 6.8 3.2 4.2 28 H 4.8
G7011 3450 460 3 60 5.5 1.6 3.5 21 K 9.7
BA7011 3450 575 3 60 4.5 1.0 2.5 11 F 15.3
AK7012 2800 380 3 50 4.4 1.6 2.8 18 G 9.7
I7012 3450 200 1 60 20.0 6.6 12.1 60 H 1.0 / 1.5
E7012 3450 230 1 60 17.2 4.0 10.9 56 F 1.3 / 4.0
J7012 3450 200 3 60 12.3 3.7 7.7 54 L 1.9
F7012 3450 230 3 60 10.8 3.3 6.9 42 K 2.4
K7012 3450 380 3 60 6.8 3.2 4.2 28 H 4.8
G7012 3450 460 3 60 5.5 1.6 3.5 21 K 9.7
BA7012 3450 575 3 60 4.5 1.0 2.5 11 F 15.3
AK7013 2800 380 3 50 4.4 1.6 2.8 18 G 9.7
I7013 3450 200 1 60 20.0 6.6 12.1 60 H 1.0 / 1.5
E7013 3450 230 1 60 17.2 4.0 10.9 56 F 1.3 / 4.0
J7013 3450 200 2 60 12.3 3.7 7.7 54 L 1.9
F7013 3450 230 2 60 10.8 3.3 6.9 42 K 2.4
K7013 3450 380 3 60 6.8 3.2 4.2 28 H 4.8
G7013 3450 460 2 60 5.5 1.6 3.5 21 K 9.7
BA7013 3450 575 2 60 4.5 1.0 2.5 11 F 15.3
Do not attempt to turn star cutter located
on bottom of the unit with ngers. Use a
wrench when checking or removing star cutter.

4
© Copyright 2015 Zoeller®Co. All rights reserved.
General Information
GRINDER PUMP DESCRIPTION
1. Pumps are constructed of class 30 cast iron protected with powder
coated epoxy for long life when pumping sewage in submersible
applications. The cutter assembly is comprised of stainless steel
components hardened to a value of 55-60 on the Rockwell C scale;
a star shaped cutter and a precision ground at disk. Cutting action
takes place with the rotation of the star cutter at 3450 RPM against
the stationary cutter plate (see page 11).
2. The cutter mechanism on the model 7011 is bidirectional, enabling
it to cut in either direction. A control panel with the reversing feature
will alternate the pump’s rotational direction with each duty cycle.
The cutter mechanism on model 7012 and 7013 is single directional.
3. Pump motors are available in single and three phase design. Single
phase motors require a Zoeller approved starting relay, starting
capacitor and a run capacitor, which are mounted in a control panel
(ref. page 8).
4. The 7011, 7012 and 7013 Grinder Pumps are dual seal and have seal
leak probes. Single phase units have an internal thermal overload.
Three phase pumps have a thermal sensor.
5. Three phase pumps require overload protection in the control panel.
6. A Grinder Pump is an intermittent duty pump designed for pumping
sanitary sewage. It is not a dewatering or trash pump.
FIELD ASSEMBLED INSTALLATION
1. Installationand pipinginstructions areincludedwith thecontrol panel,
rail system and basin instructions. If pump is being retrotted to an
existing rail system, accessory parts may be required. Consult the
factory and advise make and model of rail system being used.
2. Refer to the appropriate Indoor/Outdoor prepackaged instructions
on pages 6-9 for more information on 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
qualied licensed electrician. A UL Listed potting kit, P/N 10-2350,
is available from Zoeller Company.
4. A properly sized disconnect switch, supplied by others, shall be
installed on the service side of the pump and control panel.
5. When installing a pump with a check valve, or a rail system with
a check valve, you must give the pump case time to ll to help
prevent air lock when lowering the unit into the liquid. The pump
case has an air vent located behind the discharge. This air vent is
across the pump housing mounting surface and must be cleaned
before each reinstall. An extra air vent hole 5 mm (3/16") may be
drilled in discharge pipe below the check valve to help prevent air
lock. This drilled hole must be cleaned before each reinstall. After
the pump is installed, run the unit submerged to assure the pump
case is lled (Water should come out of 5 mm [3/16"] diameter hole).
FIGURE 1.
016532
HEAD CAPACITY CURVE
MODEL 7011/7012/7013
0 40 80 120 160 200 240
70605040302010
0
10
4
8
12
16
20
130
70
60
50
40
30
20
FLOW PER MINUTE
GALLONS
LITERS
TOTAL DYNAMIC HEAD
80
90
28
24
METERS
FEET
10 0
110
120
32
36
7 011 70137012
TOTAL DYNAMIC HEAD/FLOW
PER MINUTE
SEWAGE
MODEL
Feet
Shut-off Head:
7 011
Meters Gal. Liters
5
10
20
30 9.1
6.1
3.0
1.5
44
45
167
170
104 ft (31.7 m)
60
50
40
90
80
70
110
100
120
12.2
15.2
18.3
21.3
24.4
27.4
30.5
33.5
36.6
42
36
30 114
136
159
23
16
10 38
61
87
3
--
-- --
--
11
125 ft (38.1 m)
7013
Gal. Liters
45 170
45 170
125 ft (38.1 m)
9525
13
4
20 76
49
15
34
32
29
34
34
34
34
129
121
110
129
129
129
129
7012
Gal.
34
34
129
129
Liters
52
49 185
197
43
36
28 106
136
163
19
11
415
42
72
54 204
54 204
54 204
54 204
54 204
60Hz

5
© Copyright 2015 Zoeller®Co. All rights reserved.
MOISTURE SENSOR
L1 L2 L3
POWER CABLE
CONTACTOR T1 T2 T3
208V/230/460V
3ø POWER
SENSOR CABLE
THERMAL SENSOR
ORANGE BLACK RED WHITE GREEN
(18-4 OR 18-5)
BEFORE 6/2000
NORMALLY OPEN
330K OHMS RESISTANCE
NORMALLY CLOSED
COMPONENT LAYOUT
PUMP
START RELAY
START CAPACITOR
RUN CAPACITOR
RED
WHITE
ORANGE
BLACK
MAIN START
PROTECTOR
BLACK
WHITE
L1 L2
T2
T1
230V AC
OR
208V AC
CONTACTOR
BLUE
2
1
5
14-4
18-4
L1 L2 L3
T1 T2 T3
BLACK
RED
GREEN
POWER
CORD
MAGNETIC
STARTER
CORD
SENSOR
WHITE
BLACK
ORANGE
RED
WHITE
MOISTURE
SENSOR
TERMINALS
SENSOR
TERMINALS
TEMPERATURE
OR
18-5
GREEN
Pump Wiring Instructions
FOR YOUR PROTECTION, ALWAYS DISCONNECT THE PUMP FROM ITS POWER SOURCE BEFORE HANDLING.
All electrical connections must be wired and grounded in accordance with the National Electrical 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.
Installation and checking of electrical circuits and hardware should be performed by a qualied licensed electrician.
FIGURE 2. LEAD IDENTIFICATION WIRING DIAGRAM
SINGLE PHASE-2 BHP
MODEL 7011
SK1367 009048
THREE PHASE
MODELS 7011, 7012 & 7013
FIGURE 4.
FIGURE 3.
L1
START RELAY
START CAPACITOR
GREEN RED WHITE BLACK BLUE ORANGE
MOISTURE
SENSOR
TERMINALS
WHITE BLACK
14-618-2
REVERSE MOTOR ROTATION BY INTERCHANGING
ORANGE WIRE WITH RED WIRE.
L2
RUN CAPACITOR
GROUND SCREW
2
1
5
SINGLE PHASE
MODELS 7012 & 7013
LEAD IDENTIFICATION WIRING DIAGRAM
WIRING DIAGRAMLEAD IDENTIFICATION
START RELAY
START CAPACITOR
MOISTURE
SENSOR
TERMINALS
BLACK WHITE
L1 L2
RUN CAPACITOR
GROUND SCREW
BLACK WHITE RED GREEN
18-2 14-4
2
1
5
SK1368 SK1370
SK2399
RUN CAPACITOR START CAPACITOR
T1
BLACK
WHITE
T2
START RELAY
L1 L2
208V AC
OR
230V AC
CONTACTOR
YELLOW
MAIN WINDING
AUXILIARY WINDING
OVERLOAD
BLUE
5
5
ORANGE WHITE RED BLACK
43
43
21
21
GREEN
WHITE BLACK RED
MOTOR
CHAMBER
COVER
CHAMBER
2
1
5
SK2400

6
© Copyright 2015 Zoeller®Co. All rights reserved.
DECLARATION OF CONFORMITY
We Zoeller declare under our sole responsibility that the models 7011 /
7012 / 7013 to which this declaration relates, are in conformity with the
Governing Electrical Code on the approximation of the laws of the EC
Member States relating to:
-- Machinery Directive (2006/42/EC)
Standards used: EN 809: 1998
-- Electromagnetic Compatibility (2004/108/EC)
Standards used: EN 61000-3-2, EN 61000-3-3 and EN 55014-1
-- Electrical equipment designed for use within certain voltage
limits (2006/95/EC)
Standards used: EN60335-1:2002 and EN60335-2-41:2003
A00648
HO7RN-
L1 L2 L3
T1 T2 T3
BROWN
GR AY
POWER
CORD
MAGNETIC
STARTER
CORD
SENSOR
BLACK
BLUE
BLACK
BROWN
GRAY
MOISTURE
SENSOR
TERMINALS
CONTROL PANEL - 3Ø
SENSOR
TERMINALS
TEMPERATURE
F4G1.5
GREEN/YELLOW
HO7RN-
F5G1.0
GREEN/YELLOW
3 PHASE MOTOR
MOISTURE SENSOR
L1 L2 L3
POWER CABLE
CONTACTOR
T1 T2 T3
3Ø POWER
50 Hz
SENSOR CABLE
THERMAL SENSOR
BLACK BLUE BROWN GR AY GREEN/YELLOW
HO7RN-F5G1.0
BEFORE 6/2000
NORMALLY OPEN
330K OHMS RESISTANCE
NORMALLY CLOSED
SK2859 SK2860
All installations must comply with all applicable electrical and
plumbing codes, including but not limited to the Governing
Electrical Code, local, regional and/or state plumbing codes, etc.
SK2865
24" [610mm] *
OFF
ON
ALARM
TO CONTROL PANEL
VARIABLE LEVEL
FLOAT SWITCHES MOISTURE SENSOR CORD
3" [76mm] GROMMET SEAL
10" X 1/4" [254mm X 6mm] STEEL 16" X 1/4" [406mm X 6mm] STEEL
5/16" [8mm] 304 STAINLESS STEEL
24" X 1/4" [610mm X 6mm] STEEL
TO CONTROL PANEL
CORD SEAL
INSPECTION PLATE
BASIN COVER
PUMP PLATE
LIFTING U-BOLT
1 1/4" [32mm] PVC SLIP X SLIP
BALL VALVE
1 1/4" FEMALE NPT
CAST IRON CHECK VALVE
1 1/4" X 32" [32mm X 813mm]
GALVANIZED PIPE
1 1/2" X 8" [38mm X 203mm]
GALVANIZED PIPE
1 1/4" [32mm] GROMMET SEAL
4" [102mm] PIPE SEAL
CAST IRON ADAPTERS
PUMP POWER CORD
(FIELD INSTALLED)
(FIELD INSTALLED)
GRINDER PUMP
(FIELD INSTALLED)
(VENT CONNECTION)
CONTROL PANEL
(FIELD INSTALLED)
36" [914mm] *
* = OPTIONAL SIZES AVAILABLE
INDOOR PREPACKAGED SYSTEM
FIGURE 5.
LEAD IDENTIFICATION WIRING DIAGRAM
THREE PHASE
MODELS 7011, 7012 & 7013
CE MODEL
7013
7012
PUMP PERFORMANCE CURVE
MODELS 7012/7013
50 Hz
0
1412108642
0
3
21
18
15
12
9
6
L/SEC
M /HR
TOTAL DYNAMIC HEAD
27
METERS
FEET
3
FLOW
10
20
30
40
50
60
70
24
80
1 2 3
HEAD CAPACITY CURVE
MODEL 7011 TRIMMED IMPELLERS
50 Hz
0
7654321
0
2
14
12
10
8
6
4
L/SEC
M /HR
TOTAL DYNAMIC HEAD
18
METERS
FEET
3
FLOW
10
16
1
111098
2 3
24
22
20
20
30
40
50
60
70 STANDARD SIZE (5.56")
5.00"
4.81"
4.60"
4.00"
3.60"
MODEL
Meters Feet
1.5 5.0
2 6.6
4 13.1
6 19.7
8 26.2
12 39.4
16 52.5
70137012
L/secm /hr
3
3.6
3.5
3.512.7
12.7
12.7
Shut-off Head: 26.8m (88 ft.)
20 65.6
24 78.7
12.7
12.5
11.6
8.9
5.8
2.5
3.5
3.4
3.2
2.5
1.6
0.7
TOTAL DYNAMIC HEAD/FLOW
PER MINUTE
SEWAGE
L/secm
3
/hr
2.1
2.17.7
2.17.7
2.17.7
2.17.7
2.17.7
1.97.0
1.44.9
0.72.4
22.6m (74.1 ft.)
7.7
Meters Feet
1.5 5.0
2 6.6
4 13.1
6 19.7
8 26.2
12 39.4
16 52.5
3.60" 4.81"
L/secm /hr
3
L/secm /hr
3
1.8
1.7
1.45.0
6.3
6.6 2.8
2.7
2.59.0
9.8
10.0
4.00"
L/secm /hr
3
2.1
2.0
1.76.0
7.2
7.5
3.6
2.1
--
Shut-off Head: 10.4m (34 ft.) 19.2m (63 ft.)12.3m (40.5 ft.)
20 65.6
--
--
1.0
0.6
--
--
--
4.8
3.4
--
--
--
1.3
0.9
--
--
--
7.9
6.9
4.5
2.1
--
2.2
1.9
1.3
0.6
--
TOTAL DYNAMIC HEAD/FLOW
PER MINUTE
SEWAGE
IMPELLER
DIAMETER
5.00"
L/secm /hr
3
2.8
2.7
2.59.1
9.8
10.0
20.4m (67 ft.)
8.2
7.2
5.1
2.9
--
2.3
2.0
1.4
0.8
--
STANDARD
L/secm /hr
3
2.8
2.7
2.69.2
9.8
10.0
22.6m (74.1 ft.)
8.6
7.8
5.8
3.8
1.6
2.4
2.1
1.6
1.1
0.4
4.60"
L/secm /hr
3
2.5
2.5
2.27.9
8.9
9.1
17.1m (56 ft.)
6.9
5.8
3.7
0.9
--
1.9
1.6
1.0
0.3
--
50Hz

7
© Copyright 2015 Zoeller®Co. All rights reserved.
Indoor Prepackaged System Installation Instructions
This set of instructions is for factory prepackaged indoor systems only. If your system
is a eld assembled indoor system, use these instructions as a guideline. If your system is an outdoor
system then go to the next section in this manual that covers outdoor systems.
1. Indoor grinder pump systems are for installing at
grade in an indoor application only. If you will be
installing this system outside next to the residence
then you will need an outdoor system. DO NOT
INSTALL THE INDOOR SYSTEM OUTDOORS.
2. Review the drawing in Fig. 5 on page 6 and
the actual system to become familiar with the
components in the grinder pump system. Review
where the unit will be installed. Determine where
the power feed, inlet pipe, discharge pipe and vent
will be located.
3. Remove the unit from the packing. Indoor
prepackaged systems are preassembled at the
Zoeller Company and require a minimum of eld
assembly work. All work inside the basin can be
performed via the inspection port. There should
be no reason to remove the cover from the basin.
Pump and oat switches are already set inside the
basin.
4. Remove the inspection plate from the cover. All
oats are set and tethered for proper operation from
the factory. Verify that where the oat switches are
set will work for your application. Verifying that
the oat switches are set properly and will not
hang up inside the basin is the responsibility
of the installing contractor. Float switches are
tied in place for shipping purposes. Cut the cable
tie around each oat switch bulb or the unit will
not operate properly.
5. Dig a hole for the basin. The basin should be
located in a very low tra󰀩c area within 15’
(4.6 m) of the power disconnect. The hole should
be at least 8” (203 mm) larger in diameter than the
basin in order to leave 4” (102 mm) of backll all
the way around the perimeter. A minimum of 4”
(102 mm) of compacted subbase is also required.
Backll and subbase should be 1/8” (3.2 mm) to
3/4” (19 mm) pea gravel or 1/8” (3.2 mm) to 1/2”
(12.7 mm) crushed stone. Also reference the basin
installation instructions included with the unit.
6. The 4” (102 mm) inlet hub should be located
between the top lip of the basin and the alarm
oat “on” level with a minimum distance of 10”
(254 mm) between the oor of the basin and hub.
Determine the location of the inlet hub based upon
your inlet pipe arrangement. The inlet hub must
be used with 4” (102 mm) pipe. It is best to install
the inlet on the side of the basin opposite the oat
switches. Most systems are supplied with a eld
installed 4" (102 mm) pipe seal inlet tting. This
inlet tting is installed in the basin's side-wall in
a 5" (127 mm) hole drilled with a hole saw at a
location lining up with the inlet pipe.
7. Set the basin in the hole and connect the 4"
(102 mm) inlet pipe to the inlet hub using the rubber
insert. Backll around the basin with specied
media. Care should be taken not to damage
components or leave voids when backlling. Finish
grade of oor should be poured in place around
the top 6” (152 mm) of the basin assembly.
8. Connect the discharge pipe, valves and vent
according to all applicable National, State and
Local plumbing codes.
9. Mount the control panel on the wall within 15’
(4.6 m) of the system. Connect the oat switch
and pump cords.
10. Clean any debris out of the basin. Fill the basin with
water and check the system for proper operation.
11. Record system start-up data for future reference.
12. Seal and secure the inspection plate to the lid using
the proper bolts and sealant. Pouring concrete
around the system can now be completed.

8
© Copyright 2015 Zoeller®Co. All rights reserved.
Typical Outdoor Grinder Pumping System Installation
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.
FIGURE 6.
SK2864
24" MIN. [610mm]
WATERTIGHT
HIGH LEVEL
1 1/4" FEMALE NPT
1 1/4" [32mm] GALVANIZED
DISCHARGE PIPE
FIBERGLASS
4" [102mm] RUBBER INLET PIPE SEAL
FIBERGLASS
1 1/4" NPT BRASS
DISCONNECT FITTING
1 1/2" [38mm] SQ. GUIDE RAIL
304 STAINLESS STEEL 16 GA.
PUMP CONTROL
"ON" FLOAT
"OFF" FLOAT
PUMP CONTROL
3/8" X 1' [10mm X 305mm]
1/8" [3mm] 302 STAINLESS
NEMA 4X J-BOX
ANTI-FLOTATION FLANGE
ALARM FLOAT
SOLID
STAINLESS STEEL FLOAT HOOK
STEEL LIFTING CABLE
416 STAINLESS
1 1/4" [32mm] PVC SCH 40
PIPE AND FITTINGS
1 1/4" [32mm] PVC SLIP X SLIP
BALL VALVE
1 1/4" [32mm]
DISCHARGE FITTING
CAST IRON CHECK VALVE
COVER
(FIELD INSTALLED)
(FIELD INSTALLED)
CONTROL PANEL
FIBERGLASS BASIN
TO CONTROL PANEL
COUPLING
28" [711mm] MIN. OR PER STATE
AND LOCAL CODES
STEEL PULL ROD
60" [1524mm]
OTHER BASIN SIZES
ARE READILY AVAILABLE.
*
*
FOAM TAPE
EPOXY SEALER
APPLIES TO INSIDE AND OUTSIDE INSTALLATIONS
CONDUIT
1/4" TO 1/2" [6mm TO 13mm]
WIRES OR PUMP CABLES
1 [25mm]
UL LISTED
SK2863

9
© Copyright 2015 Zoeller®Co. All rights reserved.
Outdoor Prepackaged System Installation Instructions
1. Review the drawing in Fig. 6 on page 8 and the actual system
to become familiar with the components in the packaged
grinderpumpsystem. Review where the unit willbe installed.
Determine where the power feed, inlet pipe, and discharge
pipe will be located.
2. Remove the unit from packing. Prepackaged outdoor
systems are preassembled at the Zoeller Company and
require a minimum of eld assembly work. Float switches
are set and tethered for proper operation from the Factory.
The alarm switch should be located 3” (76 mm) above the
pump “on” level. Three oat systems used with a control
panel are placed at 27” (686 mm), 24” (610 mm), and 15”
(381mm) from the bottom of the basin. Four oat systems
used with a control panel are placed at 30” (762 mm), 27”
(686 mm), 24” (610 mm), and 15” (381mm) from the bottom
of the basin. If the invert location is at or below the level of
the oat switches, contact the factory.
3. Float switches are tied in place for shipping purposes on
all model prepackaged systems. Cut the cable tie around
each oat switch bulb or the unit will not operate properly.
Verify that where the oat switches are set will work for
your application. Verifying that the oat switches are
set properly and will not hang up inside the basin is the
responsibility of the installing contractor.
4. Dig a hole for the basin. The hole should be at least 24”
(610mm) larger in diameter than thebasindiametertoprovide
12” (305 mm) of backll all around and deep enough to provide
either 12” (305 mm) of compacted backll or 6” (152 mm)
whena concrete padis required. Note: Care must betaken
when excavating in order to avoid underground utilities
and disturbance of existing structure foundations. The
hole should be located at least ten feet from adjacent
structures. Additional distance may be required to
sufciently locate the basin outside of the loading area
of the adjacent structures.
5. The location of the inlet hub is determined by the depth of
the inlet pipe. The inlet hub must be used with 4” (102 mm)
pipe. It is best to install the inlet on the side of the basin
opposite the oat switches. To install, use a 4” (102 mm)
hole saw to drill into the side of the basin at the correct
elevation. Center the hub inner diameter with the hole in
the basin. Attach the hub to the side of the basin using the
sealant and hardware provided.
6. The bottom of the excavation can now be properly backlled,
compacted and leveled. Set basin in hole. Ensure the
removable cover extends above the nished grade line and
the grade slopes away from the unit. Backll and subbase
should be 1/8” –3/4” (3.2 - 19 mm) pea gravel or 1/8” –1/2”
(3.2 - 12.7 m)crushed stone. (Reference basin installation
instructions in cluded with unit.) Most systems are supplied
with a eld installed 4” (102 mm) pipe seal inlet tting. This
inlet tting is installed in the basin's side-wall in a 5” (127 mm)
hole drilled with a hole saw at a location lining up with the inlet
pipe. Other 271 mm type ttings and sizes are occasionally
provided.
7. Pouring a concrete anchor around system can now be
completed. Basin should be lled with water when pouring
concrete to minimize movement of the system. Backll
around basin with specied media. Care should be used
to avoid damaging components or leaving voids when back
lling. Refer to Basin installation reference guide on more
specic requirements.
8. PVC or HDPE discharge piping is connected to the 1¼”
(132 mm) threaded tting located in the basin sidewall.
Support discharge piping with sufcient backll.
9. On basin depths of 72” (1.8 m) and greater, the system’s
disconnect assembly is shipped loose and must be screwed
into the discharge piping. Apply pipe dope to threaded
connection.
10. Connect pull rod to Pump assembly. Connect lift cable to top
of pump. Lower the pump into basin ensuring the discharge
pipe bracket slides into the disconnect tting.
11. Note: The 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. The conduit should be
located below the frost line. Follow all applicable electrical
codes.
13. Connect electrical conduit and wiring to junction box
according to wiring instructions included in this manual and
wiring diagram in box. Use the potting kit provided with the
junction box. Follow the instructions for sealing the conduit
connection at the junction box.
14. Mount the control panel within sight of the system. Connect
oat switches and pump cords according to the “Pump Wiring
Instructions” found later in this manual and located inside the
panel enclosure.
15. Remove any debris from the basin. Using clean water, check
the system for proper operation.
16. Seal and secure the lid using the proper bolts and sealant
when using a lid without a formed gasket.
17. Test system for leaks and proper pump operation.
18. Record system start up data for future reference.
This set of instructions is for factory prepackaged outdoor grinder systems only. If this is a eld assembled
outdoor system you can use these instructions as a guideline. If this is an indoor system then go back to pages 6 and 7 in this
manual that covers indoor systems. The pump should not be installed in the basin until permanent electrical power is available.

10
© Copyright 2015 Zoeller®Co. All rights reserved.
Operation
GENERAL
Zoeller pumps are lubricated and tested at the factory prior to
shipment and require minimum pre-start-up maintenance.
Maximum operating temperature of pump liquid for grinder pumps
must not exceed 130°F (54°C).
These units are designed for intermittent duty sanitary sewage
applications. If pump is used to dewater areas or pump liquids
with heavy or abrasive materials, the warranty will be voided.
NAMEPLATE DATA
The nameplate, located on the side of the pump, indicates specic
informationabout the constructionofthepump. Themodel number
and date code information should be recorded on the front page
in the “Owner’s Information” section of this manual.
SHORT TERM STORAGE
Do not install pump until electrical power is available and
system is operational. When not in use, the pump should be
stored and the following is advised:
• Store pump inside whenever possible or cover with some type of
protective covering.
• Tape or seal in plastic bag the terminal ends of wire leads.
• Spray coat unpainted surfaces with rust inhibiting oil.
• The impeller should be rotated every six months in order to
keep the seals lubricated and not develop a permanent set.
If panel is to be stored, the following is advised:
• Store the panel inside whenever possible and leave in the
shipping box.
• All openings shall be sealed.
• Store in an upright position.
• Do not stack anything on top of panel.
START-UP PROCEDURE
Before placing the equipment into operation the following should
be checked:
• Clean pit.
• Pump, oat switches, electrical cables and junction box are
dry and properly installed.
• Electrical boxes dry, sealed and securely installed.
• Floats positioned properly.
• Discharge valves open.
• 3/16” (5 mm) vent hole drilled in pipe between check valve
and pump.
Once the above has been veried proceed with the following
checks:
• Pump power cables and control oats properly installed and
voltage veried.
• Conduitconnectionstopanelandjunctionboxareproperlysealed.
• After installing the pump into the containment area, with
adequate submergence, open the discharge valve fully. Start
the unit using manual controls. If ow is appreciably less than
rated performance, pump may be air locked. To expel trapped
air, jog the unit several times, using the manual controls.
• Have a qualified electrician take voltage and current
measurements withthe pump running. Record these readings
in the space provided in the “Owner’s Information” section
on page 1 of this manual for future reference.
ADJUSTMENT PROCEDURE
Pumps: No adjustments are required.
Floats: Refer to the system drawing or to the panel wiring
schematic for the desired location of each oat switch
setting.
Valves: Discharge valves should be placed in the fully open
position. Systems should not be operated for extended
periods of time with the discharge 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 pump in the pit, it should be operated for
ve minutes once every three months. If the pit is to
remain wet, the pump should be removed and stored
as noted above.
Panels: The panel should have all openings sealed to prevent
moisture and dust from entering the enclosure. Prior
to restarting system, the panel should be inspected for
presence of moisture and any loose connections.
Valves: Consult the valve/actuator supplier for information
concerning these systems components.

11
© Copyright 2015 Zoeller®Co. All rights reserved.
Cutter Maintenance
To remove star cutter: Remove guard ring then heat the center
bolt to 350°F (176°C ) to loosen Loctite® thread sealant.
Grind the Star Cutter and Disc seen here to a 32 micronish.
Surfaces must be at to within 0.001” T.I.R. (.025 mm) Gap must
be between 0.004” (0.1 mm) and 0.008” (0.2 mm) on these parts.
1. All power circuits must be disconnected and locked
out before any attempts are made at servicing. The star
cutter and disc can be removed and sharpened by grinding
the cutting faces. Both star cutter and disc must be removed
from the pump. Removal of these parts can be accomplished
in the eld by removing pump from the sump and positioning
horizontally to access the intake of the pump. If seals or
other repairs are required, the pump must be totally removed
and serviced in a shop by a qualied pump technician or
authorized service center.
2. Remove the three countersunk screws on the plastic guard
ring and remove the ring.
3. Thoroughly clean the star cutter and disc assembly. Tilt pump
back to the vertical position to make certain the end play has
been removed. Check and record the clearance between the
star cutter and disc with a feeler gage. The correct running
clearance is between 0.004" (0.1 mm) and 0.008" (0.2 mm).
4. With pump in horizontal position, heat the hex head bolt in
the center of the star cutter with a propane torch. The bolt
must be heated to 350°F (176°C ) to soften the thread lock
sealer on the bolt for ease of removal. Remove the bolt by
turning in a counterclockwise rotation. It will be necessary
to use a wood block to prevent the star cutter from turning
while removing the bolt. Pull star cutter from the shaft and
remove the spacer 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
partsor resurfaced by grinding. Resurfacingisaccomplished
by surface grinding both disc and star cutter to a 32 micro
nish. Do not attempt grinding in the eld. Send parts to
a qualied machine shop or return to the factory for repair.
The disc, star cutter and shims are a matched set. Keep
parts together. Measure disc before and after resurfacing
with micrometer and record measurements.
7. After resurfacing, the disc and star cutter must be at within
0.001" (.025 mm). If the disc has been surface ground, it
will be necessary to remove shims to compensate for the
material removed from the disc. As a starting point, remove
shims of the same thickness as the amount machined from
the cutter disc (step 6 above). Final running clearance must
be between 0.004” (0.1 mm) and 0.008”(0.2mm). Be sure
pumpis in vertical position andallend play has been removed
before measuring.
8. Clean bottom of pump where disc is located and replace disc
and retainer screws. Torque to 63-67 in-lbs (7.1-7.6 N.m).
Replace star cutter with the correct shims. Install washer
and torque hex head bolt to 71-75 in.-lbs. (8-8.5 N.m) apply
Loctite 262 thread-lock sealant or equal to bolt threads prior
to insertion. Check running clearance with pump in vertical
position to remove end play. Clearance must be between
0.004" (0.1 mm) and 0.008" (0.2 mm) to obtain efcient
grinding when pump is put back in service.
9. Replace plastic guard ring and its three screws.
10. Checkthe oil in the motorhousing beforereinstalling. Contact
the factory if the oil has a milky appearance or burnt smell.
The level should be even with the ll plug when pump is in
the upright position. Add oil if required. Use insulating oil
supplied by the factory.
FIGURE 7.
(Model 7011 components shown)

12
© Copyright 2015 Zoeller®Co. All rights reserved.
General Maintenance
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
wearing a harness with safety rope extending to the surface
so that they can be pulled out in case of asphyxiation. Sewage water
gives off methane and hydrogen sulde gases, both of which can be
highly poisonous.
Installation and checking of electrical circuits and hardware should be
performed by a qualied electrician.
Pump is never to be lifted by power cord.
Unit must be cleaned and disinfected, inside the
pumping chamber and all exterior surfaces, prior to servicing.
GENERAL SYSTEM INSPECTION
Before the system is placed into operation, it should be inspected by
a qualied technician.
Wiring and grounding must be in accordance
with the Governing Electrical Code and all applicable local codes
and ordinances.
LUBRICATION PROCEDURES
No lubrication is required.
If pumps are to be stored for more than six months, refer to short term
storage procedure in the Operation section.
PREVENTIVE MAINTENANCE
preventive maintenance is recommended to ensure a long service
life from the product. Provided is a suggested maintenance schedule.
Every six months:
• Check for proper and unobstructed oat operation.
• Listen for proper check valve operation.
Every 5 years or 10,000 hours of operation:
• Remove pump, inspect and service using a Zoeller rebuild kit.
• Flush and clean basin.
Service Checklist
Electrical precautions. Before servicing a grinder pump, always shut off the main power circuit. Make sure you are wearing
insulated protective sole shoes and not standing in water. Under ooded conditions, contact your local electric company or a qualied
licensed electrician for disconnecting electrical service to the pump prior to removal.
Grinder pumps contain oil which becomes pressurized and hot under operating conditions. Allow 2½ hours after shut
down before servicing pump.
®
MAIL TO: P.O. BOX 16347 • Louisville, KY 40256-0347 USA
SHIP TO: 3649 Cane Run Road • Louisville, KY 40211-1961 USA
[phone] • FAX [phone] visit our web site:
zoellerengineered.com
Condition Common Causes
A. Pump will not start or run. Blownpanel or circuit breaker fuse,low voltage, thermaloverload open, defectivecapacitor
circuit, cutter or impeller clogged, oat switch held down or defective, incorrect wiring in
control panel, water in cap assembly.
B. Motor overheats and trips on overload. Incorrect voltage, impeller or cutter blocked, negative head (discharge lower than intake
of pump). Defective “off” oat. Pump runs continuously at low water level. Low oil level
in motor shell.
C. Pump will not shut off. Air lock, debris under oat assembly, defective switch, incoming sewage exceeds
capacity of pump.
D. Pump operates but delivers little or no water. Intake clogged with grease or sludge, pump air locked (clear vent hole), low or incorrect
voltage, clogged discharge line, operating near shut-off head.
E. Pump starts and stops too often. Check valve stuck open or defective. Sump pit too small to handle incoming sewage.
Level control out of adjustment. Thermal overload tripping.
F. Large red ashing light comes on at control box. High water in pit. Check pump for clogging, or overload trip. On single phase pumps,
check the start capacitor in the control panel. See “A” and “D” above.
G. Grease and solids accumulate in pit around pump. Break up solids and run pump with water running into the pit. Allow level to lower to
the pump intake. Continue until solids are cleared from the pit. Do not drain kitchen
grease down the sink.