
NOTICE TO INSTALLER: Instructions must remain with installation.
®
®
3649 Cane Run Road . Louisville, KY 40211-1961
877-244-9340 . Fax: 877-414-4316
www.clarusenvironmental.com
Centrifugal Efuent Pumps
INSTALLATION INSTRUCTIONS
SECTION: C1.40.130
CL0029
1211
Supersedes
1011
NOTICE: VENT HOLE FOR
CHECK VALVE
SEE #3 IN CAUTION SECTION
BELOW AND #4 ON PAGE 3
For Models
N51 and N142
DATE INSTALLED:
MODEL NUMBER:
Efuent systems should specify that pumps should not handle solids exceeding one half inch (½") in order to prevent large solids from entering leeching elds, mound systems etc. Where
codes permit, sewage pumps can be used for efuent systems. Nonautomatic pump(s) with external level control recommended for septic tank efuent applications.
PREINSTALLATION CHECKLIST - ALL INSTALLATIONS
1. Inspect your pump. Occasionally, products are damaged during shipment. If the unit is damaged, contact your dealer before using. DO NOT remove the test plugs in the cover nor the motor housing.
2. Carefully read the literature provided to familiarize yourself with specic details regarding installation and use. These materials should be retained for future reference.
SEE BELOW FOR
LIST OF WARNINGS
1. 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 sufcient
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 fall into the sump.
2. Make sure the pump electrical supply circuit is equipped with fuses or circuit breakers of
proper capacity. A separate branch circuit is recommended, sized according to the “National
Electrical Code” for the current shown on the pump nameplate.
3. Testing for ground. As a safety measure, each electrical outlet should be checked for ground
using an Underwriters Laboratory Listed circuit analyzer which will indicate if the power, neutral
and ground wires are correctly connected to your outlet. If they are not, call a qualied licensed
electrician.
4. For Added Safety. Pumping and other equipment with a 3-prong grounded plug must be connected
to a 3-prong grounded receptacle. For added safety the receptacle may be protected with a groundfault circuit interrupter. When a pump needs to be connected in a watertight junction box, the plug
can be removed and spliced to the supply cable with proper grounding. For added safety this circuit
may be protected by a ground-fault circuit interrupter. The complete installation must comply with
the National Electrical Code and all applicable local codes and ordinances.
5. FOR YOUR PROTECTION, ALWAYS DISCONNECT PUMP FROM ITS POWER SOURCE BEFORE
HANDLING. Single phase 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 changed to the proper type, wired
and grounded in accordance with the National Electrical Code and all applicable local codes and
ordinances. Three phase pumps require motor starting devices with motor overload protection.
6. The tank is to be vented in accordance with local plumbing code. Pumps must be installed in accordance with the National Electrical Code and all applicable local codes and ordinances. Pumps
are not to be installed in locations classied as hazardous in accordance with National Electrical
Code, ANSI/NFPA 70.
7. “Risk of electrical shock” Do not remove power supply cord and strain relief or connect conduit
directly to the pump.
8. Installation and servicing of electrical circuits and hardware should be performed by a qualied
licensed electrician.
9. Pump installation and servicing should be performed by a qualied person.
10. Risk of electric shock - These pumps have not been investigated for use in swimming pool and
marine areas.
11. According to the state of California (Prop 65), this product contains chemicals known to the state
of California to cause cancer and birth defects or other reproductive harm.
1. Check to be sure your power source is capable of handling the voltage requirements of the motor,
as indicated on the pump name plate.
2. The installation of automatic pumps with variable level oat switches or nonautomatic 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. It is recommended to use rigid piping and ttings and the
pit be 18" or larger in diameter.
3. Information - vent hole purpose. It is necessary that all submersible sump, efuent, and sewage
pumps capable of handling various sizes of solid waste be of the bottom intake design to reduce
clogging and seal failures. If a check valve is incorporated in the installation, a vent hole (approx.
3/16") must be drilled in the discharge pipe below the check valve and pit cover to purge the unit
of trapped air. Trapped air is caused by agitation and/or a dry basin. Vent hole should be checked
periodically for clogging. The vent hole on a High Head application may cause too much turbulence.
You may not want to drill one. If you choose not to drill a vent hole, be sure the pump case and
impeller is covered with liquid before connecting the pipe to the check valve and no inlet carries
air to the pump intake. NOTE: THE HOLE MUST ALSO BE BELOW THE BASIN COVER AND
CLEANED PERIODICALLY. Water stream will be visible from this hole during pump run periods.
4. Pump should be checked frequently for debris and/or build up which may interfere with the oat
“on” or “off” position.
5. Dewatering and efuent sump pumps are not designed for use in pits handling raw sewage.
6. Maximum operating temperature for standard model pumps must not exceed 130°F (54°C).
7. Do not attempt to start pump when tilted or laying on its side.
8. Do not operate a pump in an application where the Total Dynamic Head is less than the minimum
Total Dynamic Head listed on the Pump Performance Curves.
NOTE: Pumps with the “UL” mark and pumps with the “US” mark are tested to UL Standard UL778.
CSA Certied pumps are certied to CSA Standard C22.2 No. 108.
REFER TO WARRANTY ON PAGE 2.
SEE BELOW FOR
LIST OF CAUTIONS
© Copyright 2011. All rights reserved.

Limited Warranty
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 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, subjected
to misuse, 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 products, etc. in all pumping applications. The warranty set out
In those instances where damages are incurred as a result of an alleged pump failure,
the Homeowner must retain possession of the pump for investigation purposes.
EASY DO’S & DON'T’S FOR INSTALLING CENTRIFUGAL PUMP
1. DO read thoroughly all installation material provided with the pump.
2. DO inspect pump for any visible damage caused by shipping. Contact
dealer if pump appears to be damaged.
3. DO clean all debris from the sump. Be sure that the pump will have a hard,
at surface beneath it. DO NOT install on sand, gravel or dirt.
4. DO be sure that the sump is large enough to allow proper clearance for the
level control switch(es) to operate properly.
5. DO Always Disconnect Pump From Power Source Before Handling.
DO always connect to a separately protected and properly grounded
circuit.
DO NOT ever cut, splice, or damage power cord (Only splice in a watertight
junction box).
DO NOT carry or lift pump by its power cord.
DO NOT use an extension cord with a sump pump.
6. DO install a check valve and a union in the discharge line.
DO NOT use a discharge pipe smaller than the pump discharge.
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, 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 FOR A
PARTICULAR PURPOSE AND OF MERCHANTABILITY SHALL BE LIMITED TO
THE DURATION OF THE EXPRESSED WARRANTY.
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 consequential damages, so the above limitation or exclusion
may not apply to you.
This warranty gives you specic legal rights and you may also have other rights
which vary from state to state.
7. DO NOT use a sump pump as a trench or excavation pump, or for pumping
sewage, gasoline, or other hazardous liquids.
8. DO test pump immediately after installation to be sure that the system is
working properly.
9. DO cover sump with an adequate sump cover.
10. DO review all applicable local and national codes and verify that the installation
conforms to each of them.
11. DO consult manufacturer for clarications or questions.
12. DO
consider a two pump system with an alarm where an installation may become
overloaded or primary pump failure would result in property damages.
13. DO consider a D.C. Backup System where a sump or dewatering pump
is necessary for the prevention of property damages from ooding due
to A.C. power disruptions, mechanical or electrical problems or system
overloading.
14. DO inspect and test system for proper operations at least every three
months.
SERVICE CHECKLIST
sure you are wearing insulated protective sole shoes and not standing in water. Under ooded conditions, contact your local electric company or a
qualied licensed electrician for disconnecting electrical service prior to pump removal.
attempting service.
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,
B. Motor overheats and trips overload
or blows fuse.
C. Pump starts and stops too often. Float tight on rod, check valve stuck or none installed in long distance line, overload open, level switch(s) defec-
D. Pump will not shut off. Debris under oat assembly, oat or oat rod bound by pit sides or other, switch defective, damaged or out of
E. Pump operates but delivers little or
no water.
F. Drop in head and/or capacity after
a period of use.
If the above chart does not uncover the problem, consult Clarus Environmental - Do not attempt to service or otherwise disassemble unit.
ELECTRICAL PRECAUTIONS- Before servicing a pump, always shut off the main power breaker and then unplug the pump - making
Submersible pumps contain oils which becomes pressurized and hot under operating conditions - allow 2½ hours after disconnecting before
defective capacitor or relay when used, motor or wiring shorted. Float assembly held down. Switch defective,
damaged, or out of adjustment.
Incorrect voltage, negative head (discharge open lower than normal) impeller or seal bound mechanically, defective capacitor or relay, motor shorted.
tive, sump pit too small.
adjustment.
Check strainer housing, discharge pipe, or if check valve is used vent hole must be clear. Discharge head
exceeds pump capacity. Low or incorrect voltage. Incorrect motor rotation. Capacitor defective. Incoming water
containing air or causing air to enter pumping chamber.
Increased pipe friction, clogged line or check valve. Abrasive material and adverse chemicals could possibly
deteriorate impeller and pump housing. Check line. Remove base and inspect.
© Copyright 2011. All rights reserved.
2