10
© Copyright 2017 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 materials, the warranty will be voided.
NAMEPLATE DATA
The nameplate, located on the top of pump, indicates specific
information about the construction of the pump. The model number
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 advised:
• Store pump inside whenever possible or cover with some type of
protective covering.
• 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
shipping 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, float 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 verified proceed with the following
checks:
• Pump power cables and control floats properly installed and
voltage verified.
• Conduit connections to panel and junction box are properly
sealed.
• After installing the pump into the containment area, with
adequate submergence, open the discharge valve fully. Start
the unit using manual controls. If flow 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
measurements with the pump running. Record these readings
in the space provided in the
“Owner’s Information”
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 location of each float switch setting.
Valves: Discharge valves should be placed in the fully open
position. Systems should not be operated for extended
periods of time with the discharge valves partially closed
due to damaging the valve.
SHUTDOWN PROCEDURES
If a system is shutdown for more than six months, the following
is recommended:
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
five 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
moisture and dust from entering the enclosure. Prior
to restarting system, the panel should be inspected for
presence of moisture and any loose connections.
Valves: Consult the valve/actuator supplier for information
concerning these systems components.
