Zoeller N153 User manual

SECTION: C1.50.130
CL0032
0321
Supersedes
1116
Centrifugal STEP Systems
OWNER'S MANUAL
© Copyright 2021. All rights reserved.
Owner’s Information
Model Number: ______________________ Date Code: _________________
Job Name:______________________________________________________
Dealer: ________________________________________________________
Date of Purchase:_______________________________________________
Contractor:_____________________________________________________
Date of Installation: ______________________________________________
System Readings During Operation: Voltage __________ Amps_________
Safety Instructions
TO AVOID SERIOUS OR FATAL PERSONAL INJURY OR MAJOR
PROPERTY DAMAGE, READ AND FOLLOW ALL SAFETY
INSTRUCTIONS IN MANUAL AND ON THE PUMP.
THIS MANUAL IS INTENDED TO ASSIST IN THE INSTALLA-
TION AND OPERATION OF THIS UNIT AND SHOULD BE KEPT
WITH THE SYSTEM.
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.
INDICATES SPECIAL INSTRUCTIONS WHICH ARE
VERY IMPORTANT AND MUST BE FOLLOWED.
THOROUGHLY REVIEW ALL INSTRUCTIONS AND WARNINGS
PRIOR TO PERFORMING ANY WORK ON THIS PUMP.
MAINTAIN ALL SAFETY DECALS.
CAUTION
Safety Instructions ........................................................................1
Limited Warranty...........................................................................2
Preinstallation Information..........................................................2
System Installation Instructions............................................. 2-4
Pump Performance Data ..............................................................5
Operation.........................................................................................6
Replacement Parts........................................................................7
Maintenance & Troubleshooting................................................8
Table of Contents
REFER TO WARRANTY ON PAGE 2.
Please read and review this manual before installing the product.
The instructions contained herein, when followed correctly, will not
only ensure a long and problem-free life for the system, but also
save time and money during installation. Should further assistance
be necessary please call Zoeller Pump Company at 1-800-928-7867.
Congratulations on the purchase of the Zoeller Pump Company
CentrifugalSTEPSystem.Thissystemwillprovideyears of trouble-
free service when installed according to the manufacturer's
recommendations.
Register your
Zoeller Pump Company Product
on our website:
http://reg.zoellerpumps.com/
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
SHIP TO: 3649 Cane Run Road • Louisville, KY 40211-1961
TEL: [phone] • 1 (800) 928-PUMP • FAX: [phone]
Visit our website:
zoellerpumps.com

2
1. Inspect your unit. Occasionally, products are damaged during
shipment. If the unit is damaged, contact your dealer before using.
2. Carefully read the literature provided to familiarize yourself with
specic details regarding installation and use. These materials
should be retained for future reference.
3. Donotlift,carry,orhangpumpbytheelectrical
cables. Damage to the electrical cables can cause shock, burns
or death.
4. For your protection, make certain the pump
ground wire is properly connected to the ground wire with
the incoming power line. Test for ground at the junction box
usinganUnderwritersLaboratorylistedcircuitanalyzerwhich
will indicate if the power, neutral and ground wires are correctly
connected. If in doubt, call a qualied licensed electrician.
5 . Make certain that the receptacle is within the
reach of the pump’s power supply cord. DO NOT USE AN
EXTENSION CORD. Extension cords that are too long or too
light do not deliver sufcient voltage to the pump motor.
But, more important, they could present a safety hazard if the
insulation were to become damaged or the connection end were
to get wet.
6.
CAUTION
Check to be sure your power source is capable of
handling the voltage requirements of the motor, as indicated on the
pump nameplate.
7. Make sure the pump electrical supply circuit
is equipped with fuses or circuit breakers of proper capacity.
A separate branch circuit is recommended, and sized
according to the “National Electrical Code” for the current
shown on the pump nameplate.
8.
CAUTION
The installation of pumps using auxiliary
variable level oat switches is the responsibility of the installing
party and care should be taken that the tethered oat switch will not
hang up on the pump apparatus or pit peculiarities and is secured
so that the pump will shut off.
9. Water hammer creates momentary high pressure
surges. These surges can cause severe damage to check valves
and the piping system. Consideration for water hammer must be
included in the piping system design. Reference ASPE Data Book,
Chapter 2.33. Some systems may require external spring or lever
weighted check valves or other engineered solutions.
10. Incoldclimatesthe discharge pipemaybesubjectto
freezing. If the riser on the septic tank is above the frost line, it will
be necessary to protect the system from freeze up. The discharge
pipe can be insulated or the check valve can be removed. If the
check valve is removed, the “on-off” cycle must be adjusted for
any back-ow from the discharge line.
© Copyright 2021. All rights reserved.
Limited Warranty
Lifetime Warranty: Every Zoeller Pump Company lter is guaranteed to be free from defects in materials and workmanship for the lifetime of the homeowner/
purchaser. Free repair or replacement, excluding labor, will be made on return of the lter prepaid to the factory. This warranty is limited to product proven to be
free from abuse or improper installation.
Manufacturer warrants, to the purchaser and subsequent owner during the
warranty period, every new product to be free from defects in material and
workmanshipundernormal useandservice,whenproperlyusedand 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 remanufactured at 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 of
manufacturer,subjectedtomisuse,misapplication, 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 derivatives (oil, gasoline, solvents, etc.),
or other abrasive or corrosive substances, wash towels or feminine sanitary
Preinstallation Information
CAUTION
CAUTION
products,etc. in all pumpingapplications. The warranty set outin 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, Attention: Customer Support 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 FOR A
PARTICULAR PURPOSE AND OF MERCHANTABILITY SHALL BE LIMITED TO
THE DURATION OF THE EXPRESSED WARRANTY
Somestates donotallowlimitationson theduration ofan impliedwarranty,
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.
System Installation Instructions
1. ZoellerPumpCompanyCentrifugalSTEPSystemsaredesignedfor
installation in septic tanks through the riser on the discharge end
of the tank. See Fig. 1. If a complete system has been purchased,
all the components will be included except external pipe, ttings,
and riser. Check your Local Code for alarm requirements.
2. 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.
3. If the Zoeller Pump Company Centrifugal STEP System is being
retrotted into an existing septic system, it will be necessary
to pump and clean out the septic tank before installing. Before
pumping, measure down to the liquid level in the septic tank (not
the scum layer) from the septic tank lid and record. The septic
tank lid becomes the reference point for measuring to correctly
installyour system. Take thepropermeasurementsbeforeattempting
to install the new ltered pump system.
4. The outlet pipe is typically 3” below the inlet on a conventional
gravity system. Check the dimensions from the top of septic tank to
the bottom of the inlet and outlet pipe. Each individual system varies
therefore do not assume your system is 3”.
5. An 18” hole is required in the top of the septic tank to install the STEP
system. If the hole in your septic tank is less than 18”, provisions
must be made to open the hole up to 18”. (You may have to change
the lid of the septic tank.)
6. If your system is not equipped with a riser, install a new Zoeller Pump
Company24” or30”diameterriser. Follow theinstallationinstructions
provided with the riser.

3
© Copyright 2021. All rights reserved.
7. Bring piping from the lateral eld to the outside of the riser on the
septic tank. Note: If installing a system using a control panel follow
the instructions included with the panel and skip steps 11-12 and 15.
8. Disconnect Zoeller Pump Company exible pipe assembly at union
on ball valve. Install pipe seal through the riser wall (2” hole saw
required) to prevent ground water intrusion. Install exible pipe
through pipe seal with union ball valve on inside of riser as shown
in Figure 1A. Solvent weld exible pipe to lateral eld piping using
PVC pipe cement.
9. Connect other part of 1-1/4” discharge pipe assembly to pump outlet
with pump setup outside the pump tank.
10. Tie off power cord by strapping to the discharge pipe. Make certain
the cord cannot become entangled or obstruct the movement of
the floats.
11. Install wire from power source and the alarm. See Fig. 1A or 1B. If
a junction box is being used, Fig. 1A, install inside the septic tank
riser. If a Qwik Box System is being used, Fig. 1B, install outside of
septic tank riser as shown in Fig. 1B or inside of septic tank riser.
Note: Some codes require the junction box to be outside the riser.
12. Installpumpswitchondischarge pipeusingtheincludedband clamp.
Place the band clamp as low on the discharge pipe as possible.
Tether the pump switch so that 3.5" of cord exists between the oat
and the clamp. This will yield a 7" drawdown cycle. Additional
tethers can be used if state, local and regional codes permit.
System Installation Instructions, continued
Figure 3 - Tethered Pump Switch
SK1301
Note: Some codes require the junction box to be outside the riser.
Figure 4 - J-Box Wiring Diagram
“Risk of electrical shock” Do not remove
power supply cord and strain relief or connect conduit directly
to the pump.
Installation and checking of electrical circuits
and hardware should be performed by a qualied licensed
electrician.
For your protection make certain the pump
ground wire is properly connected to the ground wire with
the incoming power line. Test for ground at the junction box
using an Underwriters Laboratory listed circuit analyzer which
will indicate if the power, neutral and ground wires are correctly
connected. If in doubt, call a qualied licensed electrician.
13. Measure length of hanger pipes by measuring inside the riser.
Cut and install hanger pipes in lter tank and lower the assembly
into the septic tank opening. Tie off power cords by strapping to
discharge pipe. Make certain cords cannot become entangled or
obstruct the movement of the oats. See Fig. 1. Lower pump with
discharge pipe and oat assemblies into lter tank.
14. Adjust piping using threaded elbows and exible piping provided
to achieve proper t. Connect union on ball valve.
15. Install the alarm inside the house or in a weather protected location
per installation instructions with alarm kit, making sure the alarm
is plugged into a different circuit than the pump circuit. Complete
the wiring connections. If a junction box is being used, Fig. 1A, wire
per diagram in Fig. 4. If a Qwik Box outside connection is being
used, wire according to the installation instruction provided with
the Qwik Box unit. All wiring, from the power source to the pump,
must conform to the National Electrical Code. Be sure to leave
a sufcient amount of cord so the lter can be serviced without
disconnecting the cordage from the junction box or Qwik box. See
Maintenance section on back page.
16. Fill the septic tank with water and check the alarm level before
placing the system into service. See operation and start-up areas
of this manual.
SWITCH
SK306
WHITE
BLACK
WHITE
GREEN
BLACK BLACK
GREEN
WHITE
BLACK WHITE
R
L1L2
L2 L1
PUMP
DISCONNECT
SWITCH
WATERTIGHT
JUNCTION BOX
VARIABLE
LEVEL
PUMP SWITCH PUMP CONTROL SWITCH
VARIABLE
LEVEL
DISCONNECT
SWITCH
3-1/2” (89 MM)
TETHER LENGTH
FOR DOUBLE
FLOAT
3-1/2” (89 MM)
MINIMUM
TETHER LENGTH
FOR PUMP
SWITCH

4
© Copyright 2021. All rights reserved.
15 3/8"
24 3/8"
42 5/8"
3 1/2" OF TETHER
LENGTH FROM STRAP
8 3/4" REF.
ALARM FLOAT/PUMP FLOAT
(TETHERED ON OPPOSITE
SIDE OF OTHER)
ALARM FLOAT
PUMP FLOAT
PUMP "ON"
PUMP "OFF" 4"
8"
ALARM "ON"
10"
45 7/8"
LIQUID LEVEL
CODE
18" TYP.
CONSULT LOCAL
EFFLUENT
CLEAR
RELATIVELY
INLET
2" 3" MIN.
TO ALARM
TO POWER SOURCE
2" PVC CONDUIT
SUPPLIED BY OTHERS
QWIK BOX
FILTERED EFFLUENT
PUMP "ON"
PUMP "OFF" 4"
8"
ALARM "ON"
10"
ABOVE GRADE APPLICATION
BELOW GRADE APPLICATION
SK1684
Figure 2 - Elevation View Centrifugal STEP System
Note: All on/off alarm settings
must comply with all state and
local codes.
Note: It is the responsibility of
the installer & designer to assure
all state and local codes are met.
SK1685
Figure 1B - Typical Installation Centrifugal STEP System - Qwik Box
Note: Itis the responsibility of the
installer & designer to assure all
state and local codes are met.
PUMP "ON"
PUMP "OFF"
18" TYP.
CODE
CONSULT LOCAL
INLET
2"
LIQUID
LEVEL
3" MIN.
4"
RELATIVELY
EFFLUENT
CLEAR
8"
FILTERED EFFLUENT
ALARM "ON"
10"
J-BOX
18" MIN.
TO POWER SOURCE AND ALARM
SECURE EXCESS CORDAGE
(FOR FILTER REMOVAL)
SK1686
Note: Some codes require
the junction box to be outside
the riser.
Note: All on/off alarm
settings must comply with
all state and local codes.
Figure 1A - Typical Installation Centrifugal STEP System - J-Box

5
© Copyright 2021. All rights reserved.
Performance Data
Electrical Data
Model HP Volts Phase HZ FLA
N51 0.3 115 1 60 9.5
N53 0.3 115 1 60 9.7
N98 0.5 115 1 60 9.4
N142 1.0 115 1 60 13.0
N145 0.75 115 1 60 13.0
N151 0.3 115 1 60 6.0
N152 0.4 115 1 60 8.5
N153 0.5 115 1 60 10.5
151976A
TOTAL DYNAMIC HEAD/FLOW
PER MINUTE
EFFLUENT AND DEWATERING
MODEL
Meters
Shut-off Head:
Feet
1.55
10 3.0
15 4.6
20 6.1
25 7.6
30 9.1
40 12.2
53
Gal. Liters
50
60
15.2
18.3
19.25 ft.(5.9m)
43
34
19
-
-
-
-
-
-
163
129
72
-
-
-
-
-
-
142
Gal. Liters
62 ft.(18.9m)
18
18
18
17
16
14
7
1
-
68
68
68
64
61
53
26
4
-
51
Gal. Liters
21 ft.(6.4m)
18
13
8
2
-
-
-
-
-
68
50
32
8
-
-
-
-
-
145
Gal. Liters
74 ft.(22.6m)
-
-
-
-
49
45
35
26
16
-
-
-
-
186
171
133
99
61
98
Gal. Liters
23 ft.(7.0m)
-
-
45
25
-
-
-
-
-
-
-
170
95
-
-
-
-
-
30 ft. (9.1m)
-
-
45
29
-
16
38
Gal.
50
-
-
-
110
144
170
189
Liters
61
151
8723
-
-
38 ft. (11.6m)
-
-
34
44
-
-
-
Gal.
129
167
-
-
-
Liters
152
44 ft. (13.4m)
12533
11
22
42
85
153
-
-
42
-
Gal.
-
-
159
-
-
-
Liters
------
25
20
15
10
0
0
6
4
2
30
8
METERS
FEET
GALLONS
LITERS
TOTAL DYNAMIC HEAD
FLOW PER MINUTE
10 20 30 40 50
80 160
10
12
14
35
40
45
75
5
PUMP
PERFORMANCE CURVE
51,53,98,142,145,151,152,153
50
16
18
20
22
70
65
60
55
145
53
51
142
98
151
152
153
189
151976B
NOTE:
Boxed numbers only apply to Centrifugal STEP Systems

6
© Copyright 2021. All rights reserved.
Operation
GENERAL
The centrifugal septic tank effluent pumping (STEP) system is
designed to be an easily installed, drop in pump basin that does
not require an additional pump chamber. However it can be
installed in a secondary pumping chamber. By using a submersible
pump, high head pressures are achieved. The system was
designed for convenience. The filters are easily removed for servicing.
The filter has 528 linear feet of 1/16” filtration. This large surface area
ensures adequate filtering, and a longer interval between necessary
servicing.
SHORT TERM STORAGE
If unit is to be stored for six months or longer:
• Store system inside whenever possible or cover with some type of
protective covering
• Store unit upright in original shipping container
• Ideal storage temperatures are 45 to 90 degrees
• Tape or seal in a plastic bag the terminal ends of the wire leads
If panel is to be stored for more than six months, the following is advised:
•Store the panel inside whenever possible and leave in the shipping box
• All openings must be sealed
• Store in an upright position
• Do not stack anything on top of panel
START-UP
Before placing the equipment into operation the following must
be checked:
•Septic tank should be pumped and cleaned prior to installation in
existing system
• Installation needs to be according to instructions
•Installation should include an easy access riser and tamper resistant lid
• Filter assembly needs to be in place and secure
• Floats need to be in place, secure and adjusted for proper cycling
• Make sure oat switches are free to move within the basin
• Be sure electrical connections are watertight and conform to uniform
building codes
• When a check valve is used, drill a 3/16” vent hole in pipe, between
the pump and check valve to insure the pump will not airlock
• If a control panel is used, the panel must be dry and securely installed
Fill the septic tank with water and check the system operation before
placing into service.
After installing the pump into the containment area with adequate
submergence,openthedischarge valve fully. Start the unit usingmanual
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 qualied electrician take voltage and current measurements on the
black wire of single phase. Record these readings in the space provided
in the “Owner’s Information” section of this manual for future reference.
Be sure to complete all items such as installing the lid on the riser,
securely closing the control panel, and checking the system operation
have been completed before placing the system into service.
OPERATION
• If the system is dosing a collection system, draineld, sand lter,
wetland, or some other secondary wastewater treatment system,
the ideal dosing pattern should be known and applied.
• The high water alarm will indicate the system needs maintenance.
However, regularmaintenance bytrained professionals isa necessary
part of operation.
• During operation, the system owner must continue to use proper
septic tank ownership practices. Ground garbage, hair, grease, and
non-ushable paper products should be prevented from entering any
septic system. These materials will be prevented from entering the
draineld by the lter apparatus, but abuse of the system will result
in the need for more frequent servicing.
Timed Dosing Applications
Zoeller Pump Company Centrifugal STEP Systems are adaptable for
Timed Dosing Applications using the following recommendations.
• Refer to Zoeller Pump Company Centrifugal STEP Systems catalog
sheet (CL0031) and Zoeller Pump Company Timed Dosing Panels
catalog sheet (CL0154) for ordering the correct panel part number.
• If the system is dosing a collection system, draineld, sand lter,
wetland, or some other secondary wastewater treatment system,
the ideal dosing pattern should be known and applied.
• The alarm must be activated before the efuent level reaches the
bottom of the existing outlet pipe. The alarm can be set higher, up
to the bottom of the inlet pipe, if the existing outlet pipe has been
plugged. This can be determined by measuring the location and
elevation of the discharge pipe.
• Filling the septic tank with water after completion of the installation
must be done in order to check the pump and alarm.

7
© Copyright 2021. All rights reserved.
Replacement Parts
The above parts lists are provided for ordering service parts. Please have pump model number and date code for immediate service.
SYSTEM
5040-0001
thru
5040-0025
1/00 thru
Current
1 Check Valve 30-0181
2Discharge Assembly with Check Valve 170-0084
Discharge Assembly without Check Valve 170-0083
3 Tank 011300
4
Pump, N51, Nonautomatic (Pump Only) 51-0002
Pump, BN51, Automatic (Pump and Switch) 51-0006
Pump, N53, Nonautomatic (Pump Only) 53-0002
Pump, BN53, Automatic, (Pump and Switch) 53-0029
Pump, N98, Nonautomatic (Pump Only) 98-0002
Pump, BN98, Automatic, (Pump and Switch) 98-0005
Pump, N142, Nonautomatic (Pump Only) 142-0002
Pump, BN142, Automatic (Pump and Switch) 142-0006
Pump, N145, Nonautomatic (Pump Only) 145-0002
Pump, BN145, Automatic (Pump and Switch) 145-0005
Pump, N151, Nonautomatic (Pump Only) 151-0002
Pump, BN151, Automatic (Pump and Switch) 151-0005
Pump, N152, Nonautomatic (Pump Only) 152-0002
Pump, BN152, Automatic (Pump and Switch) 152-0005
Pump, N153, Nonautomatic (Pump Only) 153-0002
Pump, BN153, Automatic (Pump and Switch) 153-0005
Piggyback Pump Switch (Switch Only) 10-0063
5Filter Cartridge Assembly 011303
6
Indoor Alarm Pak (Alarm Box and Switch) 10-4012
Outdoor Alarm Pak (Alarm Box and Switch) 10-0623
Mechanical Float Switch, 15' cord (Float Switch Only) 10-0743
7 Qwik Box 10-0579
SILENCE
INPUT1
POWER
7
6
4
3
5
2
1
2
SK1687
SERVICE PARTS LIST FOR CENTRIFUGAL STEP SYSTEM

© Copyright 2021. All rights reserved.
If the above checklist does not uncover the problem, consult the factory - Do not attempt to service or otherwise disassemble pump.
ELECTRICAL PRECAUTIONS- Before servicing a pump, always shut off the main power breaker and then unplug the
pump - making sure you are not standing in water and wearing insulated protective sole shoes. Under ooded conditions, contact your
local electric company or a qualied licensed electrician for disconnecting electrical service prior to pump removal.
Submersible pumps contain oils which becomes pressurized and hot under operating conditions - allow 2-1/2 hours after
disconnecting before attempting service.
Maintenance
For your personal safety and health, a high
qualitypair of rubberglovesarerecommendedwhile servicing
this unit. For your personal health, always wash your hands
with antibacterial soap after servicing this unit.
Always disconnect pump and panel from its power source
before servicing
GENERAL
Zoeller Pump Company Centrifugal STEP Systems require periodic maintenance
to remain in operational condition. A qualied service technician should carry
out the required maintenance. These technicians will not only service the pump
unit, but can assess the health of the septic tank.
SERVICE FREQUENCY
• The system contains an efuent lter. This lter will prevent solids larger
than 1/16” from entering the pump compartment. The lter will require
cleaning. The cleaning interval is determined by household use patterns.
For example, a single individual may need a lter cleaning and inspection on
yearly intervals, but a family with teenagers may require lter maintenance
every six months, or sooner. The pump tank and pump should be serviced
at a minimum each time the septic tank is pumped. Annual inspections by
trained professionals are recommended.
• Alarm activation between service intervals may be an indication that the
system is not being serviced often enough. The alarm indicates a high
liquid level and service is required immediately to avoid flooding and
sewage back up into the house.
SERVICING THE UNIT
During lter maintenance, the service technician must perform the following:
• Check the sludge level of the septic tank. If the sludge level approaches
the bottom of the STEP vault, the septic tank needs to be pumped.
• The pump should be removed, cleaned, and inspected. Any defective
components should be replaced. Inspect and remove any sand, debris, or
mud present in the pump basin assembly.
• Inspect the panel for any presence of moisture in enclosure, loose
connections, and general component condition.
• Check for proper location and unobstructed oat operation.
To remove the entire system:
1. The pump and lter tank must be removed for cleaning and servicing. This
provides an opening for pumping out the septic tank. Remove the riser ring
cover only after disconnecting power to both the pump and alarm.
2. Disconnect the pipe union in the discharge pipe and remove the entire
pump tank assembly. Hose off assembly as it is being removed to avoid any
spillage of sewage or efuents outside the septic tank.
3. Lift assembly out of the riser and stand upright on ground or level working
surface. Remove one of the 1½” support pipes, and then remove lid, pump/
oat assembly, and discharge pipe. Place over septic tank opening and
hose down thoroughly. The cordage from the junction box to the pump is
of sufcient length to avoid the necessity of disconnecting the electrical
wiring in the junction box. Do not disturb wiring connection unless pump
is being replaced or repaired. If access is required to the junction box,
disconnect power. Power is disconnected in the Qwik Box by unplugging
the connections.
4. With tank & lter over the opening, hose down the inside and outside tank.
Remove lter pack from tank by pushing on lter pack at the bottom of the
tank through opening or pulling from the top side.
5. Reinstall lter in tank. Check oat assemblies for proper operation and
reassemble pump piping and lid on lter tank. Reinstall 1-1/2” support pipe.
Install pump and lter tank back in tank and reconnect union.
6. Fill tank with water and check out the pump system and alarm.
7. Follow Start-up procedures located in the Operation section of this manual
to get system running again.
Service Checklist
CONDITION COMMON CAUSES
A. Pump will not start or run.
Check fuse, low voltage, overload open, open or incorrect wiring, open switch, impeller
or seal bound mechanically, defective capacitor or relay when used, motor or wiring
shorted. Float assembly held down. Switch defective, damaged, or out of adjustment.
B.Motor overheats and trips overload or blows
fuse. Incorrect voltage, impeller or seal bound mechanically.
C. Pump starts and stops too often. Float tether length too short, check valve stuck or not installed in discharge line, overload
open, level switch(s) defective.
D. Pump will not shut off. Debris under oat assembly, oat or oat rod obstructed, switch defective, damaged
or out of adjustment.
E. Pump operates but delivers little or no water.
Check strainer housing on pump and discharge pipe must be open. Discharge head
exceeds pump capacity. Low or incorrect voltage. Incoming water containing air or
causing air to enter pump. Filter Clogged.
F. Drop in head and/or capacity after a period
of use.
Increased pipe friction, clogged line or check valve. Abrasive material and/or adverse
chemicals could possibly deteriorate impeller and pump housing. Check discharge line.
Remove base and inspect pump.
All Zoeller Pump Company products must be installed and maintained in accordance with all applicable codes.
Product information presented here reflects conditions at time of publication. Consult factory regarding discrepancies or inconsistencies.