norweco BIO-DYNAMIC LF 4600 User manual
INSTALLATION AND OPERATION MANUAL
FOR MODELS LF 4600 AND LF 4800
INTRODUCTION
Bio-Dynamic LF Series tablet feeders are complete dry
chemical dosing systems for water, wastewater, stormwater
and process water treatment. They are designed to provide
automatic control over the chemical application rate and
eight inch inlet and outlet hubs
and can handle flows up to
Chemical dosage can range from
the general system component
type of chemical tablets applied.
manufactured from durable ABS
Bio-Dynamic tablet feeders will
provide long term, unattended
operation and precise chemical
application throughout their rated
yourself with the contents of this
manual before proceeding with
installation and operation.
SYSTEM APPLICATION
Bio-Dynamic LF Series tablet feeders are designed to feed
These tablet feeders are not to be used for pressurized
applications for the LF Series tablet feeders are treating
flows from septic tanks; aerobic treatment units; sand
municipal drinking water systems; process water systems;
reservoirs; water towers; cooling towers and irrigation
systems. All LF Series Bio-Dynamic tablet feeders can be
installed in-line at or below grade.
HOW THE LF SERIES TABLET FEEDERS WORK
proportional chemical dosing units designed to safely apply
deck where the chemical tablets are contained in one to
to the chemical tablets. Active
chemicals are released into the
the tablets. When the incoming
level in the tablet feeder rises to
more tablets, thereby providing
the additional chemical release
As the flow decreases, it
contacts fewer tablets, reducing
the chemical dosage. After
contact with the chemical tablets,
the tablet feeder through the
minimum of 15 minutes contact
time is recommended.
SYSTEM PERFORMANCE
Bio-Dynamic LF Series tablet feeders are listed as chlorine
Blue Crystal or Bio-Sanitizer disinfecting tablets and a
retention time must comply with the controlling regulatory
BIO-DYNAMIC®DRY CHEMICAL FEEDER
TABLET FEEDER MODEL LF 4600
GENERAL INSTALLATION INSTRUCTIONS
system. When used for potable water disinfection, the
and just prior to a storage or detention tank. For wastewater
disinfection applications, the tablet feeder is installed
For dechlorination, feeders can be installed in or immediately
following the chlorine contact tank. When chlorinating and
feeders must be installed. Do not mix chlorination and
dechlorination tablets within the same tablet feeder.
DIRECT BURIAL INSTALLATION
below grade without a manhole or secondary enclosure.
The tablet feeder must be supported by this pad before
inlet and outlet piping is attached to the feeder. Excavated
trenches should be smooth and free of debris to prevent
damage to the pipe. Connecting lines should be laid
continuously and unspliced to undisturbed earth beyond the
cast iron or similar materials may be used, subject to the
approval of local codes. Attach the inlet and outlet lines to
will be used as a riser to grade. Connect the pipe to the riser
hub with compatible glue. Do not cement the cap. Check
the system for plumb and level from side to side, end to end
that the feeder is plumb and level.
couplings should be used, if necessary, to modify piping
diameters and insure a secure piping connection to the
per linear foot of run along the entire piping run. All tablet
feeders must be installed plumb and level to insure proper
side and end to end. Always recheck level after installation.
INSTALLATION AT GRADE
or mounted in the contact tank of a water or wastewater
treatment system. The installation should be accessible
for routine operator maintenance. To mount the unit, use
integrally molded mounting feet to the deck of the contact
EXISTING SYSTEM RETROFIT
When installing a tablet feeder into an existing disinfection
system, it is recommended that the chlorine contact tank
be pumped and thoroughly cleaned with a diluted bleach
solution prior to installation of the feeder. Failure to properly
upstream and downstream treatment components to
FIGURE A
CHAMBER MOUNTING BRACKETS
DIRECT BURIAL AND REMOTE DIRECT BURIAL
FIGURE B
REMOTE REMOVAL SYSTEM
A remote removal system is available for direct burial
installations to allow for safe removal, recharge and
reinstallation of the feed tubes from grade. The remote
removal system consists of four top-threaded feed tube
caps, four extensions and four handles. For use, replace the
standard caps with the top-threaded caps. The top-threaded
caps lock into the feed tubes, then the extensions and handles
Additional extensions are available for deeper installations
and can be added or removed any time. The extensions
and handles remain in place during system operation and
TIERED FLOW DECK
tablet feeders. This allows consistent chemical application
conditions and forms a drainage channel to dry the tablets
for the feed tubes. The locating ribs engage positioning slots
in the feed tube to secure the tube in the proper installation
position for the feeder’s rated capacity.
CLEARCHECK®FEED TUBE AND CAP
chemical feed tubes with twist lock caps. Each feed tube and
for durability and long life. The feed tube is manufactured
with the translucent ClearCheck design. This design allows
the operator or service provider to determine whether tablet
the tube from the feeder. The feed tube utilizes chemical
tablets with the nominal weight and dimensions of 5 ounces,
into the bottom of the feed tube allow the chemical tablets
FILLING AND INSTALLING THE FEED TUBE
Before handling any chemical tablets, carefully read the
product container label and the CAUTION section of these
gloves and safety goggles or a face shield for proper
protection. Follow all handling instructions for the chemical
Rinse the feed tube and cap thoroughly with fresh water.
against the next and evenly on top of one another, in the
tablets inside the open end of the inverted tube until it has
to the upright position. Replace the cap and slide the feed
tube into the body of the feeder, slotted end down. The
slots in the bottom of the feed tube must properly engage
tube is fully engaged within the feeder and rests evenly on
FIGURE D
THREE TIERED FLOW DECK
FIGURE C
CONTINUOUS AND UNSPLICED
BIO-SANITIZER®DISINFECTING TABLETS
of Bio-Sanitizer disinfecting tablets is available from your
local distributor. Bio-Sanitizer tablets insure dependable
and other applications where a predictable long-term source
of chlorine is desirable. The tablets are manufactured from
chlorine. Bio-Sanitizer disinfecting tablets are registered
tablets incorporate beveled edges to enhance the chemical
chemical application rate of Bio-Sanitizer tablets remains
BIO-MAX®DECHLORINATION TABLETS
dechlorination tablets is available from your local
manufactured to neutralize both free and combined chlorine.
tablets dissolve slowly, releasing controlled amounts of
chemical for the instantaneous removal of residual chlorine
chlorine residuals to non-detectable levels.
BLUE CRYSTAL®DISINFECTING TABLETS
of Blue Crystal residential disinfecting tablets is available
residential wastewater treatment applications. Formulated
to maintain positive disinfection during the low, sustained,
residential wastewater treatment systems, Blue Crystal
tablets are produced with a proprietary beveled edge design
to enhance the chemical dissolution pattern. Each tablet
approximate weight of 5 ounces and is white in color with
BIO-PERC®REMEDIATION TABLETS
tablets rejuvenate failing wastewater treatment systems by
reducing or eliminating organic buildup in distribution lines
capacity while preventing the failure of new installations.
has an approximate weight of 5 ounces and incorporates a
beveled edge design to reduce wicking.
CAUTION: All chemicals and chemical feed systems
should be handled with care. Chemicals and feed
tubes should not be mixed with each other or any other
products. Do not handle tablets or feed tubes without
rst carefully reading the product container label, SDS
information and the handling and storage instructions.
REMOTE REMOVAL HANDLES AND CAP
FIGURE E
TABLETS MUST LIE FLAT IN THE STACK
FIGURE F
PLACING THE BIO-DYNAMIC®ON-LINE
inlet to test the chemical application. For chlorination applications, testing can be done using a chlorine test kit, available from
OPERATIONAL ADJUSTMENT
ROUTINE MAINTENANCE
When performing maintenance, always wear rubber gloves and safety goggles or a face shield and follow the procedures
feeder and rinse any residue with a low pressure hose. Dry the feed tube with a clean cloth before reinserting chemical tablets.
the feeder during a malfunction of the upstream treatment system can be removed with the cleaning brush or a gloved hand.
INTERMITTENT USAGE
During a period of intermittent use or extended period of non-use, feed tubes should be removed and stored in a well-ventilated,
instructions for the chemical tablets. Reinstall the riser cap securely for the time period the system will be unattended.
OPERATIONAL ADJUSTMENT CHART
Condition Possible Cause Recommended Remedy
Insucient
Chemical
Application
Feed tube empty
Replace using properly approved tablets
Feed tube not properly installed
Tablets jammed in the feed tube
Troubleshoot treatment plant
Debris clogging bottom of the feed tube
Tablet feeder not level Adjust mouting position
Tablets more than one year old
Overapplication
of Chemical
Replace using properly approved tablets
Blockage at outlet Rinse feeder wit fresh water to remove blockage
Too many tablets immersed
Recirculation piping not properly adjusted
Tablet feeder not level Adjust mounting position
SYSTEM SAFETY
All installations not protected by a safety fence or locked
should have access to the tablet feeder and its components.
for a properly installed Bio-Dynamic LF Series tablet feeder
feeder can be performed from grade. Rubber gloves and
safety goggles or a face shield should always be worn when
providing service to any chemical feed system. Toxic fumes
the feeder and cause personal injury or death. All safety and
handling procedures for chemical tablets must be followed
completely. Water and wastewater treatment chemicals can
be very dangerous. Thoroughly read chemical container
allowed in the vicinity of a treatment system.
BIO-DYNAMIC®LIMITED WARRANTY
CHEMICAL CONSUMPTION RECORD
For your reference, please document chemical consumption and maintenance on the following chart:
backed by a comprehensive ten year limited warranty.
The purchaser is protected from defects in material
and workmanship, under normal use and service, for a
period of ten years from the date of original purchase.
The Bio-Dynamic distributor will provide a warranty
registration card, as well as detailed warranty and
exchange information, to each purchaser. This warranty
replacement, do not use or dismantle the unit. Contact
your local, authorized Bio-Dynamic distributor to arrange
for inspection, service or replacement of the system or
component. After inspection, the distributor will return
factory and replace the necessary items according to
the terms of the limited warranty.
220 REPUBLIC STREET
NORWALK, OHIO, U.S.A. 44857
TELEPHONE (419) 668-4471
FAX (419) 663-5440
www.norweco.com
DISTRIBUTED LOCALLY BY:
Norweco®, Norweco.com®, Singulair®, Modulair®, Travalair®, Singulair R3®, Singulair Green®, Ribbit Rivet®, Hydro-Kinetic®, Hydro-Kinetic Bio-Film
Reactor®,Evenair®, Lift-Rail®, Microsonic®, Bio-Dynamic®, Bio-Sanitizer®, Bio-Neutralizer®, Bio-Kinetic®, Bio-Static®, Bio-Gem®, Bio-Max®, Bio-Perc®,
Blue Crystal®, Phos-4-Fade®, Enviro-C®, Nitro-Buster®, ClearCheck®, ChemCheck®, Tri-Max®, Hydra-Max®, Service Pro®, MCD®, TNT®, WASP®,
Grease Buster®and “BUSTER” logo®are registered trademarks of Norwalk Wastewater Equipment Company, Inc.
DATE DESCRIPTION
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