Evoqua DEFENDER SP-27-48-487 Manual

DEFENDER®RMF SYSTEM
OPERATION & MAINTENANCE MANUAL
Revised 10/2022
DEFENDER® REGENERATIVE
MEDIA FILTER MANUAL

Page 2
PREFACE
Disclaimer Statement
This operation and maintenance manual (O&M) references component manufacturers’manuals.
Along with this O&M, these manuals (OEMs) should provide complete and accurate information
to meet operating and/or service requirements based on the information available at the time of
publication. However, Evoqua Water Technologies assumes no responsibility for the technical
content of the component manufacturers’OEM manual.
Evoqua reserves the right to make engineering refinements that may not be reflected in these
manuals. The material in these manuals is for informational purposes and is subject to change
without notice and should not be construed as a commitment by Evoqua. Evoqua assumes no
responsibility for any errors that may appear in this document. This manual is believed to be
complete and accurate at the time of publication. In no event shall Evoqua be liable for
incidental or consequential damages in connection with or arising from the use of this manual.
©Copyright 2022 Evoqua Water Technologies, LLC. All rights reserved.
This manual or parts thereof may not be reproduced in any form without the written permission
of the publishers.
Proprietary Rights Statement
This manual discloses information to which Evoqua has proprietary rights. Neither receipt nor
possession of this manual confers or transfers any right to the client, and by its retention hereof,
the client acknowledges that it will not reproduce or cause to be reproduced, in whole or in part,
any such information except by written permission from Evoqua. The client shall have the right
to use and disclose to its employees the information contained herein for the purpose of
operating and maintaining the Evoqua equipment, and for no other purpose.
In the event the content of this manual is altered, or section/items are omitted during a
reproduction, in whole or in part, and instructions or definitions within the reproduction result in
personal injury to those who follow the altered instructions, the burden of responsibility for
personal injury falls solely on the party who affects the reproduction.
EVOQUA WATER TECHNOLOGIES, LLC.
www.evoqua.com

Page 3
Contents
PREFACE...................................................................................................2
DISCLAIMER STATEMENT .......................................................................2
PROPRIETARY RIGHTS STATEMENT.....................................................2
GENERAL INFORMATION.........................................................................6
INTRODUCTION........................................................................................6
STANDARDS AND REGULATIONS...........................................................6
TERMS AND DEFINITIONS.......................................................................7
HEALTH AND SAFETY..............................................................................7
Safety Guidelines......................................................................................................7
Safety Notices...........................................................................................................8
System Safety Precautions.......................................................................................8
Safety Data Sheets...................................................................................................9
Delivery Safety Precautions....................................................................................10
Installation Safety Precautions................................................................................11
LABELS AND DATA PLATES...................................................................12
OPERATING LIMITS................................................................................13
HANDLING AND LIFTING........................................................................13
LONG TERM STORAGE..........................................................................13
GENERAL INSTALLATION SCHEMATIC ................................................14
DIMENSIONAL REFERENCE..................................................................15
STANDARD DEFENDER .........................................................................15
ASSERO DEFENDER..............................................................................16
REDUCED HEIGHT DEFENDER.............................................................17
INSTALLATION........................................................................................18
Tank Leg Anchor Installation ..................................................................................19
Auxiliary Equipment Installation..............................................................................20
Gauge Panel...........................................................................................................20
Pressure Gauges....................................................................................................20

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Pipe Installation ......................................................................................................21
Support Spacing for PVC........................................................................................21
Recommended Support Spacing (In Feet) .............................................................22
PVC Flange Installation Data..................................................................................23
VALVE INSTALLATION............................................................................25
Butterfly Valves.......................................................................................................25
Installation of Butterfly Valves.................................................................................26
CONTROLLER INSTALLATION...............................................................27
PNEUMATIC CONNECTIONS .................................................................29
Control Enclosure...................................................................................................29
Filter/Regulator.......................................................................................................30
Pneumatic Solenoid Valves....................................................................................31
Pneumatic Tubing Installation.................................................................................32
Pneumatic Actuator Tubing Connections................................................................33
Actuator Installation and Adjustment ......................................................................34
Vacuum Transfer Unit.............................................................................................35
Grounding Requirements........................................................................................38
Touchup Paint.........................................................................................................38
INITIAL STARTUP....................................................................................39
Pre-Startup Check..................................................................................................39
CONTROLLER PARAMETERS/SETUP...................................................40
Setup Instructions...................................................................................................40
DRY TEST GUIDE....................................................................................52
IO Diagnostics ........................................................................................................52
Media Requirements...............................................................................................53
Loading Perlite-Vacuum Transfer...........................................................................53
OPERATIONAL OVERVIEW....................................................................54
View Information.....................................................................................................54
Controller Status.....................................................................................................55
Recharging Perlite (Drain/Rinse)............................................................................55
Cleaning the Strainer..............................................................................................57
MAINTENANCE........................................................................................58

Page 5
General...................................................................................................................58
1-Year Maintenance Schedule.............................................................................58
5-Year Maintenance Schedule.............................................................................58
10-Year Maintenance Schedule...........................................................................59
Tube Wash Procedure............................................................................................60
Chemical Clean Procedure.....................................................................................60
Flexible Tube Element Chemical Cleaning.............................................................62
Lowering the Tubesheet into Maintenance Position ...............................................62
Raising the Tubesheet into Operating Position.......................................................63
Bump Assembly Maintenance ................................................................................64
Lift Shaft Maintenance Procedure:..........................................................................64
Bump Assembly Maintenance Procedure:..............................................................64
Head Removal........................................................................................................65
Felt Gasket Replacement Procedure......................................................................68
TROUBLESHOOTING..............................................................................69
Errors and Alarms...................................................................................................69
Troubleshooting Guide ...........................................................................................73
OPTIONAL FEATURES............................................................................76
Automated Drain Option .........................................................................................76
APPENDIX ...............................................................................................77
Electrical Schematic ...............................................................................................78
Head Loss Curve....................................................................................................79
Defender® RMF Schematic and Parts List.............................................................80
HEALTH AND SAFETY............................................................................85
Cautions and Warnings ..........................................................................................85
Personal Safety ......................................................................................................85
Hazard Alerting Symbols........................................................................................86
Prohibited Action Symbols......................................................................................86
Mandatory Action Symbols.....................................................................................87
Product Safety........................................................................................................88

Page 6
GENERAL INFORMATION
Introduction
Established in 1956, Neptune Benson has proudly served the commercial aquatics industry for
over six decades. Our Defender® line of regenerative media filters has become synonymous
with the term “RMF” in the industry. With over 20,000 installations in 45 countries, we have the
filtration and disinfection experience to help meet your water quality needs, while keeping
sustainability and safety of your guests top of mind.
The Neptune Benson Defender Regenerative Media Filter System has been specifically
developed to provide aquatics venues with the clearest, cleanest and safest water possible.
The Defender RMF System will be one of the following configurations:
•Defender SP in 27”, 33”, 41”, 49” and 55” Models
•Defender SP Reduced Height in 27”, 33”, 41”, 49” and 55” Models
•Defender SP Assero in the 29” Model
This manual describes the basic steps to install, operate, and maintain this system and supplies
project drawings and documents, and any details that are specific to this project.
Read this manual completely before installing, operating, or maintaining the system to learn
about the system. If questions arise that this manual does not specifically answer, contact
Technical Support for assistance at the information provided below:
Evoqua Water Technologies, LLC - Neptune Benson, Inc.
Technical and Aftermarket Parts Support: [phone] (toll-free) [phone] (toll)
E-mail: nbtechsuppor[email protected]m
Standards and Regulations
The Defender filter conforms to the following standards and regulations:
1. NSF50
2. CE
The Defender filter controller conforms to the following standards and regulations:
1. UL
2. CE
3. IEC

Page 7
Terms and Definitions
Agitation –Mechanical or manual movement to dislodge filter aid and dirt from the filter
element.
Bump –The process which removes the filter aid. See Agitation.
Diatomite-type Filter –A pressure or vacuum type device designed to filter water through a
thin layer of filter aid.
Differential pressure –Effluent pressure subtracted from the influent pressure of the filter.
Effluent –The treated water stream emerging from a unit, system, or process.
Filter Aid –Finely divided medium used to coat a flextube of a diatomite-type filter.
Flextube –The filter element on which the filter aid is deposited.
Head Loss –Total Pressure drop in psi or feet of water between the inlet and outlet of a
component.
Influent –The untreated water stream entering a unit, system, or process.
Precoat –Layer of filter aid on flextube of a diatomite-type filter at the beginning of a filter cycle
Regen –The cycle which applies the filtration media to the flextubes.
RMF –Regenerative Media Filter. See Diatomite-type Filter.
Working Pressure –Maximum operating pressure recommended by manufacturer.
Health and Safety
Safety Guidelines
Safety precautions protect against accidents such as personal injury. They may also prevent
damage to equipment and facilities, as well as undesirable process occurrences. These
measures may also maximize operational efficiency by minimizing downtime, maximizing
productivity, or improving overall operating effectiveness.
Warning labels have been placed on the equipment to remind the operator of certain hazards.
Specific personal and product safety notification are also provided within the procedures of this
manual. For more information about these messages, see the Cautions and Warnings section in
the Appendix.
However, the notifications in this manual and the warning labels do not replace the need to be
alert and use common sense when using the equipment.

Page 8
All personnel should be thoroughly familiar with the procedures contained in this manual. It is
the responsibility of the owner to ensure that the equipment is used properly and safely, strictly
following the instructions contained in the manual.
Safety Notices
Safety notices are located throughout this manual at the point where the risk is encountered.
The notices employ the latest ISO style format for personal risk notifications and typical
“technical manual” style notices for product notifications. See the Cautions and Warnings
section in the for further information.
System Safety Precautions
The following safety precautions are relevant to the installing and operating the Defender® RMF
system as described in this manual.
Potential moving par ts hazard exis ts when
ser vicing or inspecting centrifugal pumps , motors,
and/or bump mechanism .
Turn of f con trol to pumps, motors before ser vicing.
Do not operate without guards in place.
POTENTIAL ELECTRICAL HAZARDS EXISTS WHEN
SERVICING THE LOCAL CONTROL PANELS, PUMPS,
MIXERS, AS WELL AS SKID-MOUNT ED AND TANK-
MOUNTED I NSTRUMENTATION.
ALWAYS ISOLATE ELECTRICAL POWER SUPPLIES
BEFORE SERVICING POWERED EQUIPMENT AND
DEVICES. AFTER ISOLATING, ALLOW AT LEAST 30
SECONDS FOR POWER TO DISSIPATE.

Page 9
Potential h igh-pressure hazards exist
while ser vicing high -pressure air supply
lines and disconnecting any compressed
air tubing leading to the pneumatically
actuated control valves.
Wear eye protection and ensure
pressures are relieved before servicing
high-pressure air lines and equipment.
Safety Data Sheets
A description of any chemicals that may be used for operating and cleaning, as well as
guidelines for handling, care and other pertinent topics are included in the Safety Data Sheets
that are available upon request.
This system may use chemicals that may
be highly corrosive. Severe burns or
blindness may occu r upon contact, or
prolonged inhalation may result in
severe irrita tion to mucous membranes.
And contact with metals may become
corrosive .
Wear the proper Personal Protective
Equ ipment (PPE) when handling these
chemicals—see the SDS supplied with
each chemical for exact risks and
precautions to take.

Page 10
Delivery Safety Precautions
LIFT LOADS ONLY AS HIGH AS NECESSA RY
TO MOVE F ROM ONE SURFACE TO
ANOTHER.
TOP HEAVY EQUIPMENT SKIDS MAY TIP -
OVER AND FALL OFF OF LIFTING
EQUIPMENT AND CAUSE SEVERE
PERSONAL INJURY AND/OR DAMAGE THE
EQUIPMENT.
CAUTION
DO NOT LIFT A SKID ATTACHING LIF TING DEVICES TO PIPING OR
OTHER COMPONENTS. U SE DEFINED LIFTING POINTS, LUGS OR
EYELETS.
FAILURE TO USE DEFINED LIFTING POINTS WILL DAMAGE THE
FILTER WHICH MAY VOID THE WARRANT Y AND CAN RESULT IN
COSTLY DELAYS AND REPAIRS.
CAUTION
DO NOT SUBJECT VESSEL LEGS AND OTHER LIFT POINTS TO SIDE
LOADS. DO NOT LIFT SKIDS UNEVENLY.
SIDE LOADS MAY CAUSE DAMAGE TO THE EQUI PMENT F RAME AND
HARM SYSTEM OPERATION WHICH MAY VOID THE WARRANT Y AND
CAN RESULT IN COSTLY DELAYS AND REPAIRS.
CAUTION
CAREFULLY UNLOAD AND MOVE FILTER, CONTROL PANEL AND
EQUIPMENT CRATES.
FAILURE TO DO SO MAY DAMAGE THE DELICATE IN STRUMENT S IN
THE CONTROL PANEL OR SHIPPING CRATES WHICH MAY VOID THE
WARRANT Y AND CAN RESULT IN CO STLY DELAYS, REPAI RS O R
REPLACEM ENT.
ALWAYS INSPECT LIFTING EQUIPMENT PRIOR TO
USE.
OUT OF SERVICE AND DAMAGED EQUIPMENT CAN
FAIL IN SERVICE AND CAN CAUSE S EVERE
PERSONAL INJURY AND/OR DAMAGE THE
EQUIPMENT.

Page 11
Important
Report shipping damage promptly to both Neptune Benson and the
carrier to ensure repair or replacement. Avo id releasing equipment
for installation until all damage claims and/or shortage problems
have been resolved.
Installation Safety Precautions
The weight of the skid presents a crush
hazard.
Keep hands and feet from underneath
skids and pallets during installation.
CAUTION
ALL EQUIPMENT MUST B E SECURELY ANCHORED TO THE
FOUNDATION.
UNANCHORED OR POORLY ANCHORED EQUIPMENT IS SUBJECT TO
VIBRATION INDUCED MOVEMENT THAT CAN RESULT IN
MISALIGNMENT AND DAMAGE TO PI PING COMPONENTS.
VERIFY THAT ALL SUPPLIES OF SERVICE
ELECTRICIT Y ARE DISCONNECTED OR SHUT OFF,
AND ARE LOCKED-OUT BEFORE INSTALLING
SERVICE TO THE SYSTEM.

Page 12
Labels and Data Plates
Model number guide:
Data Plate:
Every Defender will have its own unique data plate. The data plate contains critical information
regarding the installation and operation of the filter. Removal of this data plate will void the
filter’s warranty.

Page 13
Operating Limits
Filter Rate: 0.5 –2 GPM/SF
Working Pressure: 50 psi
Maximum Differential Pressure: 15 psi
Storage Temperature: -25 to 120 degrees Fahrenheit, -31 to 48 degrees Celsius
Operating Temperature: 0 to 120 degrees Fahrenheit, -17 to 48 degrees Celsius
Maximum Chlorine Concentration: Do not exceed more than 5 ppm for continuous immersion.
Do not exceed 25 ppm for greater than 24 hours.
pH: 7.2 - 7.8
Written evidence of ongoing daily compliance to the accepted Langlier saturation index and
chemical levels appropriate for the Defenders intended use with recreational water is required.
Handling and Lifting
When receiving delivery of a Defender, a suitable method of lifting the filter will be required.
Once the Defender is offloaded, it should be inspected for any obvious damage to the protective
packaging. The packaging includes indicators which will tell if the Defender has fallen over. If
this indicator has been tripped, please contact Neptune Benson.
The Defender filter is capable of being lifted in two ways.
1. Lifted from the top, by the lifting eyes.
2. Lifted from the bottom, via a pallet or special shipping legs on units too large for a pallet.
Defender filters are packaged so that damage from shipping is avoided. The protective
wrapping and padding should be left in place until the Defender is ready for installation.
Long Term Storage
Defender filters may arrive on-site months before they are ready to be installed and long-term
storage may be required. The following recommendations will ensure the Defender Filter is
protected.
1. The protective wrapping should be left on the Defender until it is ready for installation.
2. Ambient temperature should not exceed -25 to 120 degrees Fahrenheit.
3. Defender should be placed on a firm foundation to ensure it will not tip over.
Before installation, the Defender should be unwrapped and inspected for any damage that may
have occurred during transport or storage. It is important that the Bump tire be fully pressurized
(70-90psi) before moving the Defender to its final position.

Page 14
General Installation Schematic

Page 15
DIMENSIONAL REFERENCE
Standard Defender

Page 16
Assero Defender
Reduced Height Defender

Page 17
Reduced Height Defender

Page 18
Installation
The filter contains internal parts that are vertically deployed. Always transport and handle the
filter in an upright position.
Figure 1: Positioning and Erection of Tanks
If the filter needs to be positioned horizontally for access reasons, the bump mechanism must
be pressurized to a minimum of 75 PSI prior to tilting the tank.
CAUTION
FAILURE TO PRESSURIZE THE BUMP MECHANISM CAN DAMAGE THE
LIFT SHAFT AND RENDER THE FILTER INOPERABLE.
RETURN THE FILT ER TO THE VERTICAL POSITION AS SOON AS
POSSIBLE.
DO NOT LEAVE OR STORE THE FILT ER IN THE HORIZONTAL POSITION.
AFTER THE TANK IS SET IN ITS FINAL VERTICAL POSITION, BUMP
THE UNIT FIVE TO SIX TIMES TO VERIFY PROPER OPERATION.
Hoist the filter only by the lifting pad eye lugs located on the top of the filter vessel.
Keeping the vessel in the vertical position on the hoist, extend the legs from the collapsed
position to the extended position. If you are positioning an SP-49-48-1548 or SP-55-48-2076,
once the tank is in the final position, remove the shipping tabs, and then attach the regular legs.
For reduced-height filters, the legs are welded.
Install the filter so that the head is level. The level of the filter should be checked with a bubble
level. Shim and grout the leg base pads as required to level the filter. Using the holes in the
pads, anchor each leg to the concrete floor.
Do Not
Remove Plug
Lifting
Eye
Lugs
Connect air to
valve.
Open to
pressurize.
Close after
pressurized

Page 19
Grounding lug mounting locations are available on each leg of the filter, each location is
indicated by a sticker. Proper grounding is essential to help slow corrosion that can be caused
by stray current. Refer to the Vacuum Transfer System Diagram for more information on the
grounding lug locations.
Tank Leg Anchor Installation
WARNING
THE FILTER IS PROVIDED WITH MOUNTING ANCHORS TO SECURE IT
TO THE FLOOR. ANCHORS MUST B E INSTALLED PER THE
MANUFACTURER’S INSTRU CTIONS BEFORE ATT EMPTING TO LIFT THE
FILTER HEAD (TO P PLATE). FAILURE TO PROPERLY ANCHOR THE
FILTER TO THE FLOO R CAN RESULT IN BODILY INJURY AND
EQUIPMENT DAMAGE.
Figure 2: Tank Leg Anchor Installation

Page 20
1. With the filter tank in its installed location, use a 1/2 inch carbide drill bit and drill a 6 inch-
deep hole in the floor. There should be a total of 6 1/2 inches depth from the top of leg
plate.
2. Remove all debris from the holes.
3. Assemble washer and nut, leaving top of the stud exposed above the nut. Drive anchor into
the hole until the washer is flush.
4. Expand the anchor by tightening nut 3-5 turns past the hand tight position, or torque to 55
ft-lbs.
Auxiliary Equipment Installation
Gauge Panel
Bolt the gauge panel to mounting plate with four 1/4 x 1 inch screws, washer, and nuts
(included).
Figure 3: Gauge Panel
Pressure Gauges
All gauges supplied by Neptune-Benson™ are designed with dampening orifice openings to
minimize damage due to surges or quick changes in pressure. The small opening is subject to
clogging, especially on gauges that are located before the filter.
If a gauge reacts slowly to changes in pressure or tends to remain at an elevated pressure while
the system is shut down, remove the gauge for inspection. The opening or orifice is located
1/4 x 1 inch screws,
washers, and nuts
(included)
*Differential pressure
transducers
1/4 inch OD tubing
(included)
1/4 inch male compression
connection (included)
1/4 inch ball valve
(included)
1/4 inch FPT X. FPT
threaded tee