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© Copyright 2009 Zoeller Co. All rights reserved.



P/N 006355

Notice to installing contractor:  Instructions must remain with installation.

SECTION: 6.10.001


Rev. A





*Effl uent systems should specify that pumps should not handle solids exceeding three fourths inch (¾") in order to prevent large solids from entering leeching fi elds, mound systems etc. 

(Model 49 and 70 Series have 3/8" solids capability, 50, 90, 140, 145/4145, 151, 371 and 372 Series have ½", 130 Series has 5/8", 152,153, and 160/4160/180/4180, 373 Series have 

¾".)  Where codes permit, sewage pumps can be used for effl uent systems. Nonautomatic pump(s) with external level control recommended for septic tank effl uent applications.

Product information presented 

here re fl ects con di tions at time 

of  publication. Consult factory 

re gard ing  dis crep an cies  or 

in con sis ten cies.

MAIL TO:  P.O. BOX 16347 • Louisville, KY  40256-0347

SHIP TO:  3649 Cane Run Road  • Louisville, KY  40211-1961

(502) 778-2731 • 1 (800) 928-PUMP • FAX (502) 774-3624

visit our web site:



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 specifi c details regarding in stal la tion and use. These materials should be retained for future reference.









49, 50 Series, 70 Series, 98 Series

211 Series, 264 Series

130 Series, 140/4140, 145/4145 Series, 150 Series, 160/4160 Series

260 Series, 270/4270 Series

180/4180 Series, 191, 371, 372, 373

280/4280 Series, 290/4290 Series



 1.   Make certain that the receptacle is within the reach  of the pump’s pow er supply cord.  DO NOT 

USE AN EXTENSION CORD. Extension cords that are too long or too light do not deliver suffi cient 
voltage to the pump motor. But, more important, they could present a safety haz ard if the insulation 
were to become damaged or the con nec tion 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 rec om mended, sized  ac cord ing  to the “National 
Elec tri cal 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 qualifi ed licensed 

 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 ground-
fault 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 in ter rupt er. The complete in stal la tion must comply with 
the National Electrical Code and all applicable local codes and ordinances.


HANDLING.  Single phase pumps are sup plied with a 3-prong ground ed plug to help protect you 
against the possibility of electrical shock.  DO NOT UNDER ANY CIRCUM STANCES RE MOVE 
  The 3-prong plug must be inserted into a mating 3-prong grounded receptacle.  
If the in stal la tion does not have such a receptacle, it must be changed to the prop er type, wired 
and ground ed in ac cor dance with the National Elec tri cal Code and all applicable local codes and 
or di nanc es.  Three phase pumps require motor starting devices with motor overload pro tec tion. See 
FM0486 for duplex in stal la tions.

 6. The tank is to be vented in accordance with local plumbing code.  Pumps must be in stalled in ac-

 cor dance with the National Electrical Code and all ap pli cable local codes and ordinances.  Pumps 
are not to be installed in locations clas si fi ed 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 qualifi ed 

li censed  electrician.

 9.  Pump installation and servicing  should be performed by a qualifi ed 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 re quire ments of the motor, 

as indicated on the pump name plate.

  2.  The installation of automatic pumps with variable level fl oat switch es or nonautomatic pumps using 

auxiliary variable level fl oat switches is the re spon si bil i ty of the in stall ing party and care should be 
tak en that the tethered fl 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 fi ttings and the 
pit be 18" or larger in diameter.

  3.  Information - vent hole purpose.  It is necessary that all sub mers ible sump, effl uent, and sewage 

pumps capable of handling various sizes of solid waste be of the bottom intake design to reduce 
clog ging 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 50 or 90 Series pumps have a vent lo cated in the pump housing 
opposite the fl oat, ad ja cent to a housing lug, but an additional vent hole is recommended.  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: 
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 fl oat “on” 

or “off” position. Repair and service should be performed by Zoeller Pump Company Authorized 
Service Station only.

  5.  Dewatering and effl uent sump pumps are not designed for use in pits handling raw sewage.
  6.  Maximum operating temperature for standard model pumps must not ex ceed 130°F (54°C).  Model 

49 max. temperature must not exceed 104ºF (40ºC). The 70 and 211 Series max. temperature must 
not exceed 110ºF (43ºC).

  7.  Pump models 188/4188, 189/4189, and 295/4295 nonautomatic pump must run totally submerged 

and CSA certifi ed pumps must be operated submerged with “off - on” level controls.

  8.  Pump models 266, 267, 268, 137 and 139 must be operated in an upright position. Do not attempt 

to start pump when tilted or laying on its side.

  9.  Do not operate a pump in an ap pli ca tion where the Total Dynamic Head is less than the minimum 

Total Dynamic Head listed on the Pump Performance Curves.

 10.  Model 49 is for indoor use only.


NOTE: Pumps with the “UL” mark and pumps with the “US” mark are tested to UL Standard UL778. 

CSA Certifi ed pumps are certifi ed to CSA Standard C22.2 No. 108.

Summary of Contents for 6355

Page 1: ...unded 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 See FM0486 for duplex installations 6 The tank is to be vented in accordance with local plumbing code Pumps must be installed in ac cordance with the National Electrical Code and all applicable local codes and ordinances...

Page 2: ...tempt to service or otherwise disassemble pump Service must be performed by Zoeller Authorized Service Stations Go to www zoeller com zcopump TechSupport authsslisting htm to find the Authorized Service Station in your area SERVICE CHECKLIST EASY DO S DON T S FOR INSTALLING A SUMP PUMP 1 DO read thoroughly all installation material provided with the pump 2 DO inspect pump for any visible damage ca...

Page 3: ...LE MUST ALSO BE BELOW THE BASIN COVER AND CLEANED PERIODICALLY High Head unit see 3 under Caution on front page Water stream will be visible from this hole during pump run periods 5 Securely tape or clamp power cord to discharge pipe clear of the float mechanism s 6 Use full size discharge pipe 7 Basin must be in accordance with applicable codes and specifications 8 Pump must be level and float me...

Page 4: ...correct switching of any two power leads other than ground should provide the proper rotation All three phase pumps require motor starting devices with motor overloadprotection SeeFM0486forduplexinstallations Pumps mustbeinstalledinaccordancewiththeNationalElectricalCode and all applicable local codes and ordinances Pumps are not to be installed in locations classified as hazardous in accordance w...