Zoeller M802 Instructions D'installation

Notice to installing contractor: Instructions must remain with installation.
Trusted. Tested. Tough.
DATE INSTALLED:
MODEL NUMBER:
Product information presented here reflects conditions at time of publication. Consult factory regarding discrepancies or inconsistencies.
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 specific details regarding installation and use. These materials should be retained for future reference.
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 sufficient voltage to the pump motor, and they
could present a safety hazard if the insulation were to become damaged or the
connection end were to fall into a wet or damp area.
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 qualified, 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 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 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. See FM0486 for duplex
installations.
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 classified
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 qualified licensed electrician.
9. Pump installation and servicing should be performed by a qualified person.
10. Risk of electrical shock - These pumps have not been investigated for use in
swimming pool and marine areas.
11. Prop65 Warning for California residents: Cancer and Reproductive Harm- www.
P65Warnings.ca.gov.
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MAIL TO: P.O. BOX 16347 • Louisville, KY 40256-0347
SHIP TO: 3649 Cane Run Road • Louisville, KY 40211-1961
Tel: (502) 778-2731 • 1 (800) 928-PUMP
M802 INSTALLATION INSTRUCTIONS
SEE BELOW FOR
LIST OF WARNINGS
© Copyright 2025 Zoeller
CAUTION
1. Zoeller Grinder Pumps are designed for grinding and pumping sewage from
homes. The pump is intended to grind and pump all normal sewage including
reasonable quantities of disposable diapers, sanitary napkins, paper towels,
rubber materials, cleaning wipes, plastics, cigarette butts and other items
normally found in sewage.
2. Check to be sure your power source is capable of handling the voltage
requirements of the motor, as indicated on the pump name plate.
3. The installation of automatic pumps with variable level float switches or
nonautomatic pumps using auxiliary variable level float switches is the
responsibility of the installing party and care should be taken that the tethered
float 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 fittings and the pit be 18" (46 cm) or larger in diameter.
4. Information - vent hole purpose. It is necessary that all submersible sump,
effluent, 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" [5 mm]) 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 53
pumps have a vent located in the pump housing opposite the float, adjacent 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: THE HOLE MUST ALSO BE
BELOW THE BASIN COVER AND CLEANED PERIODICALLY. Water stream will
be visible from this hole during pump run periods.
5. Pump should be checked frequently for debris and/or buildup which may interfere
with the float "on" or "off" position. Repair and service should be performed
by Zoeller Pump Company Authorized Service and Warranty Center.
6. Dewatering and effluent sump pumps are not designed for use in pits handling
raw sewage.
7. Maximum operating temperature for standard model pumps must not exceed
130 °F (54 °C).
8. Pump models 266, 267, and 137 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 application where the Total Dynamic Head is less
than the minimum Total Dynamic Head listed on the Pump Performance Curves.
10. This pump has been evaluated for use with water only.
NOTE: 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.
REFER TO WARRANTY ON PAGE 2.
Co. All rights reserved.
®
1
FM3539
0725
Supersedes
New
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SEE BELOW FOR
LIST OF CAUTIONS
/ 57, and 98 Series
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