10
© Copyright 2008 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 ma te ri als, the warranty will be void ed.
NAMEPLATE DATA
The nameplate, located on the top of pump, indicates speci
fi
c
in for ma tion about the construction of the pump. The model num ber
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 permanent electrical power is
available and system is operational.
When not in use, the
pump should be stored, and the following is ad vised:
• Store pump inside whenever possible or cover with some type of
protective cov er ing.
• 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
ship ping 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,
fl
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” vent hole drilled in pipe between check valve and
pump.
Once the above has been veri
fi
ed proceed with the following
checks:
• Pump power cables and control
fl
oats properly installed and
voltage veri
fi
ed.
• Conduit connections to panel and junction box are properly
sealed.
• After installing the pump into the containment area, with
ad e quate sub mer gence, open the discharge valve fully. Start
the unit using manual controls. If
fl
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
mea sure ments with the pump running. Record these readings
in the space provided in the
“Own er’s In for ma tion”
section
on page 1 of this manual for future reference.
ADJUSTMENT PROCEDURE
Pumps: No adjustments are required.
Floats: Refer to Fig. 4 on page 5 or to the panel wiring schematic
for desired lo ca tion of each
fl
oat switch setting.
Valves: Discharge valves should be placed in the fully open
po si tion. Sys tems should not be operated for extended
periods of time with the dis charge valves partially closed
due to damaging the valve.
SHUTDOWN PROCEDURES
If a system is shutdown for more than six months, the following
is rec om mend ed:
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
fi
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
mois ture and dust from entering the enclosure. Prior
to re start ing sys tem, the panel should be inspected for
presence of mois ture and any loose con nec tions.
Valves: Consult the valve/actuator supplier for information
con cern ing these systems components.
