Pentair BIOSHIELD 522635 User manual

IMPORTANT SAFETY INSTRUCTIONS
READ AND FOLLOW ALL INSTRUCTIONS
SAVE THESE INSTRUCTIONS
BIOSHIELD®
UV SYSTEM
INSTALLATION AND
USER'S GUIDE
ENGLISH

2
BIOSHIELD® UV SYSTEM Installation and User's Guide
1620 HAWKINS AVE., SANFORD, NC 27330 • [phone] • 10951 WEST LOS ANGELES AVE., MOORPARK, CA 93021 • [phone]
All indicated Pentair trademarks and logos are property of Pentair. Third party registered and unregistered trademarks and logos are the property
of their respective owners.
This document is subject to change without notice.
©2023 Pentair. All rights reserved. Pentair.com
P/N 960080 Rev. P 01/2023
CUSTOMER SERVICE / TECHNICAL SUPPORT
If you have questions about ordering Pentair Aquatics Systems
replacement parts and products, please contact:
Customer Service and Technical Support, USA
(8 A.M. to 7:30 P.M. — ET)
Phone: [phone]
Fax: [phone]
Sanford, North Carolina (8 A.M. to 4:30 P.M. ET)
Phone: [phone]
Fax: [phone]
Moorpark, California (8 A.M. to 4:30 P.M. PT)
Phone: [phone] (Ext. 5591)
Fax: [phone]
Web site
Visit www.pentair.com for information about Pentair products.
Important Safety Instructions ............................................................. 3
System Specications .........................................................................4
System Specications .................................................................... 4
Sizing Chart .................................................................................... 4
Pre-Installation Inspection ..................................................................4
Quartz Sleeve and UV Lamp Inspection........................................... 4
Installation............................................................................................ 5
Quartz Sleeve Assembly and Installation ..........................................5
Typical Installation...........................................................................5
Mounting the Vessel.........................................................................5
Mounting the Power Supply..............................................................5
Flow Switch .....................................................................................6
Mandatory Leak Test........................................................................6
Electrical Connection ......................................................................7
Flow Switch Electrical......................................................................7
UV Lamp Installation........................................................................7
Operation .............................................................................................. 8
Initial Start-Up .................................................................................8
Maintenance ......................................................................................... 9
UV Lamp Replacement.....................................................................9
Quartz Sleeve Cleaning.....................................................................9
Winterizing.......................................................................................9
Troubleshooting ................................................................................. 10
Replacements Parts........................................................................... 10
Revision 3 UV unit with Flow Switch............................................... 10
Revision 3 UV unit ...........................................................................11
Revision 2 UV unit .......................................................................... 12
Español ............................................................................................... 13
Français ............................................................................................. 25
TABLE OF CONTENTS

3
BIOSHIELD® UV SYSTEM Installation and User's Guide
IMPORTANT NOTICE
This guide provides installation and operation instructions for the UV.
Consult Pentair with any questions regarding this equipment.
Attention Installer: This guide contains important information about
the installation, operation and safe use of this product. This information
must be given to the owner and/or operator of this equipment after
installation or left on or near the UV system.
Attention User: This manual contains important information that will
help you in operating and maintaining this product. Please retain it for
future reference.
IMPORTANT SAFETY INSTRUCTIONS! PLEASE READ PRIOR TO IN-
STALLATION AND OPERATION!
Strictly follow the instructions within this manual to ensure the health
and safety of both, yourself and the UV system. The installation,
operation and maintenance of the UV system can only be carried out
after reading and understanding the information contained in this
manual.
The installation of the UV system must be carried out in accordance
with local regulations and codes.
READ AND FOLLOW ALL INSTRUCTIONS
This is the safety alert symbol. When you see this symbol on
your system or in this manual, look for one of the following signal
words and be alert to the potential for personal injury.
Warns about hazards that can cause death, serious
personal injury, or major property damage if ignored.
Warns about hazards that may cause death, serious
personal injury, or major property damage if ignored.
Warns about hazards that may or can cause minor
personal injury or property damage if ignored.
NOTE Indicates special instructions not related to hazards.
Carefully read and follow all safety instructions in this manual and on
equipment. Keep safety labels in good condition; replace if missing
or damaged.
When installing and using this electrical equipment, basic safety
precautions must always be followed, including the following:
FAILURE TO FOLLOW ALL INSTRUCTIONS AND
WARNINGS CAN RESULT IN SERIOUS BODILY INJURY OR DEATH.
THIS UV SYSTEM MUST BE INSTALLED AND SERVICED ONLY BY
A QUALIFIED POOL SERVICE PROFESSIONAL. INSTALLERS, POOL
OPERATORS AND OWNERS MUST READ THESE WARNINGS AND ALL
INSTRUCTIONS IN THE OWNER’S MANUAL BEFORE USING THIS PROD-
UCT. THESE WARNINGS AND THE OWNER’S MANUAL MUST BE LEFT
WITH THE POOL OWNER.
Ultraviolet light is damaging to your eyes and skin! DO
NOT handle or stare at an operating UV lamp.
NOTE that the UV light rays are invisible to the human eye and
precautions must be taken to prevent UV energy from entering the
eyes.
This productshould notbe used onpools thatuse bromine
for sanitization. The use of UV light or ozone in bromine-sanitized pools
may induce the formation of bromate, a possible human carcinogen
ULTRAVIOLET RADIATION. Failure to disconnect the
power from the UV System and pump before servicing the unit or
replacing the lamp could result in personal injury or property damage.
Conrm the lamp is completely off, via the view port, before attempting
lamp replacement.
The quartz sleeve and or the UV lamp shipped with this
product may have been broken or damaged during transit. It is therefore
essential that the unit be carefully inspected before connecting to
electrical power.
To prevent possible re or electrical shock, only use
replacement lamps specied by the manufacturer.
DO NOT allow system to exceed 50 PSI (Pounds Per
Square Inch).
DO NOT operate this unit above maximum ow rate.
Operatingthe productinthis manner will result in reduced effectiveness
and voiding of warranty.
To avoid possible electrical shock, special care must be
taken since water is employed in intended applications. For each of
the following situations, DO NOT attempt repairs yourself. Call Pentair
Water Pool and Spa, Inc. customer service department at [phone]
for services or discard the appliance.
If unit falls into the water, DO NOT REACH FOR IT! First
power down the unit and then retrieve it. If the internal electrical
components of the unit get wet, keep the unit powered down until
internal electrical components have dried.
If the unit shows any sign of water leakage, immediately
power down the unit.
Carefully examine the unit after installation. It must not
be powered on if there is water on any part not intended to be wet.
To reduce the risk of injury, DO NOT permit children to
use this product.
BioShield UV systems are designed for low-pressure
water applications. DO NOT use these units for any application outside
of their intended use. The use of attachments not recommended or
sold by the original manufacturer may cause unsafe conditions and may
void any warranty.
This unit must be wired in conjunction with a properly
grounded, Ground Fault Circuit Interrupter (GFCI). Only three (3) wire
grounded cables suitable for outdoor use should be used to connect
this unit. If joining cables for outdoor use, a suitable watertight cable
connector must be used. If an extension cord is necessary, a cord with a
proper rating must be used. A cord rated for less amperes or watts than
the appliance’s rating may overheat. Care should be taken to arrange
the cord so that it will not be tripped over or pulled. If in doubt consult a
qualied electrician.
Warping or cracking of the UV body may occur when left
in direct sunlight without water inside to help dissipate the heat.
DO NOT operate the unit in “no-ow” situations.
SAVE THESE INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS

4
BIOSHIELD® UV SYSTEM Installation and User's Guide
SYSTEM SPECIFICATIONS
PRE-INSTALLATION INSPECTION
Quartz Sleeve and UV Lamp Inspection
NOTE: DO NOT handle the lamp or quartz sleeve with bare hands. Your
hands can deposit oils on the quartz sleeve and lamp that will decrease
the eciency of the UV.
1. Carefully unpack the UV lamp and quartz sleeve from their corrugated
packing tube and inspect for damage including broken glass, cracks,
chips, fractures and pin holes. If damage has occurred please contact
the place of original purchase immediately.
NOTE: Save the corrugated lamp packaging after unpacking the
UV lamp. Storing the lamp and/or quartz sleeve in this packaging
while performing maintenance on the UV system will protect these
components from damage or fouling when outside of the vessel.
2. After inspection, assemble the quartz sleeve into the UV vessel. If
installing the unit, perform the Mandatory Leak Test (see page 6).
3. Inspect all other UV system components (power supply, UV vessel
unions and necessary mounting clamps) for damage.
After receipt and inspection of the unit, if broken glass is found
(including cracks, chips, pin holes and hair line fractures of any kind)
please contact Pentair Water Pool and Spa, Inc. at [phone].
System Specications
Model No.
Max Flow Rate @
30 mJ/cm²
Lamp
Wattage Amperes (A)
UV-C Output
Watts
Dimensions
W x H (Inches) Input Voltage Pressure Loss
522635 25 GPM 50 0.98-0.43 15 28" x 5.75" 120/240 VAC
50/60 Hz
Less than
0.5 PSI
522636 45 GPM 80 0.98-0.43 27 43" x 5.75" 120/240 VAC
50/60 Hz
Less than
0.5 PSI
522637 62 GPM 120 0.98-0.43 36 56" x 5.75" 120/240 VAC
50/60 Hz
Less than
0.5 PSI
522638 100 GPM 150 1.82-0.91 57 70" x 5.75" 120/240 VAC
50/60 Hz
Less than
0.5 PSI
Sizing Chart
Model No.
Max Flow Rate @
30 mJ/cm²
Turnover Rate in GPM Determined by Daily Hours of Operation
Hours
6 8 10 12 14 16 18 20 22 24
522635 25 GPM 9,000 12,000 15,000 18,000 21,000 24,000 27,000 30,000 33,000 36,000
522636 45 GPM 16,200 21,600 27,000 32,400 37,800 43,200 48,600 54,000 59,400 64,800
522637 62 GPM 22,320 29,760 37,200 44,640 52,080 59,520 66,960 74,400 81,840 89,280
522638 100 GPM 36,000 48,000 60,000 72,000 84,000 96,000 108,000 120,000 132,000 144,000
Est. Lamp Life* (years) 5.5 4.1 3.3 2.7 2.3 2.1 1.8 1.6 1.5 1.4
NOTE (*): Lamp life estimates given above are based on a system that is in continuous operation, 365 days a year. Actual lamp life will vary based
on specic operation schedules.

5
BIOSHIELD® UV SYSTEM Installation and User's Guide
INSTALLATION
Quartz Sleeve Assembly and Installation
Improper assembly may result in water damage to
electrical components and unsafe conditions. The manufacturer is not
responsible for damage caused by improper re-assembly of these parts.
Quartz Sleeve Module (QSM) Assembly:
1. Quartz Sleeve
2. QSM Retaining Nut
3. QSM Blue Compression Gasket
4. QSM XF Gasket
5. Quartz Sleeve Module
Assembly Instructions
1. Position the QSM retaining nut and QSM blue compression gasket over
the open end of the quartz sleeve. The blue compression gasket is a
snug t with the quartz sleeve. Water may be used to slide the blue
compression gasket into place on the quart sleeve.
2. Slide the “open-end” of the quartz sleeve (with nut/gasket in position)
into the clear quartz sleeve module
3. Thread the white retaining nut onto the clear quartz sleeve module’s
male threads and hand-tighten.
4. While hand-tightening the QSM retaining nut onto the clear quartz
sleeve module, use your index nger to ensure that the open-end
of the quartz sleeve mates smoothly with the inside lip of the clear
quartz sleeve module; this signies a good t.
5. With the quartz sleeve positioned inside the clear quartz sleeve
module properly, nish hand-tightening the white retaining nut.
When the QSM retaining nut is tight, the quartz sleeve should appear
straight inside the clear quartz sleeve module.
NOTE: If the quartz sleeve appears crooked it may leak. Disassemble
and try again.
6. Carefully slide the quartz sleeve assembly into the UV vessel. The
domed-end of the quartz sleeve will slide into the coupling located on
the non-electrical end of the UV vessel.
7. With the quartz sleeve assembly properly in place, the quartz sleeve
retaining module will sit ush against the top of the UV vessel.
8. Thread the black retaining nut onto the male threads of the UV vessel.
Hand tighten only!
9. Using the instructions given on page 6, perform the Mandatory Leak
Test. If no leaks are found proceed to page 7, UV Lamp Installation, for
instructions on installing the UV lamp.
DO NOT operate the UV system at ow rates higher than
maximum ow rate. Operating the product in this manner will result in
reduced effectiveness and voiding of warranty.
NOTE: The BioShield UV System has been certied as a water
conditioning device only. These units have not been certied for
supplemental or secondary disinfection use.
These units have been certied to provide:
- Reduction in Chloramines
Pentair encourages the consideration of the installation
recommendations provided here.
Suspended solid debris will absorb UV light and reduce the UV
transmittance through water.
When operating UVs consider the recommended water ow rates found
in the “Sizing Chart”, on page 4.
Typical Installation
Flow Path: Skimmer(s)/Drain(s) > Pump > Filter > UV >
Primary Sanitizer and Heater > Pool Returns

6
BIOSHIELD® UV SYSTEM Installation and User's Guide
The UV must be positioned after the mechanical lter where it can
receive only solid debris free water, optimizing UV transmittance/
performance. If you have a ow rate that exceeds the UV vessels rated
ow, install a bypass loop.
The Q-10 uid ow switch is supplied with a 2 1/2” x 1” PVC T. Teon™
tape, must be intact or renewed if needed. If new tape is required apply
a minimum of 2 to a maximum of 3 wraps of Teon tape to threads of
bushing.
Tighten unit in tee until uid leaks are eliminated, ow target is
approximately centered along axis of pipe and ow direction arrows
located on unit are aligned parallel with ow in pipe. When threading
into PVC ttings 2-3 layers of Teon sealing tape is recommended.
Tighten 2-3 turns beyond nger tight.
NOTE: Before gluing pipe or reducer bushing into the UV vessel's union
or socket, remove the quartz sleeve assembly to prevent glue from
dripping onto the quartz sleeve.
NOTE: Use thread seal tape on all threaded connections.
Mounting the Vessel
NOTE: The way UV vessels are mounted/positioned plays a very
important role in the unit’s performance and degree of safety. We
STRONGLY RECOMMEND that you follow these instructions and
guidelines precisely. Any deviation from these mounting instructions
will void any warranty associated with the UV vessel and all its
components and may cause unsafe conditions.
Trapped air inside the UV vessel during operation may
create excessive heat thus damaging internal components.
Mounting Clamps
The UV system is furnished with mounting clamps and spacers. The
mounting clamps are designed to t around the top quartz sleeve port
and the bottom clear plug port. The spacers allow for more clearance
for the air relief and drain ports.
Mounting Clamps are not to be used in a horizontal free
standing installation. The clamps will not hold the weight of the vessel.
Vertical
Mount the BioShield® UV with the electrical end up.
Use the bottom port as the inlet with the top port as
the outlet.
Mounting Clamps are not to be used in
a horizontal free standing installation. The clamps will
not hold the weight of the vessel.
Inlet and outlet plumbing must be supported or
damage to the UV vessel may occur.
NOTE: The UV vessel must be installed with a vertical
clearance 1-1/2 times the vessel length. This will allow sucient room
for servicing the unit and replacing the UV lamp.
Horizontal
Mount the BioShield UV system horizontally with the inlet/outlet facing up.
Mounting Clamps are not to be used in a horizontal free
standing installation. The clamps will not hold the weight of the vessel.
Inlet and outlet plumbing must be supported or damage to the UV
vessel may occur.
NOTE: The UV vessel must be installed with a horizontal clearance 1-1/2
times the vessel length. This will allow sucient room for servicing the
unit and replacing the UV lamp.
Mounting the Power Supply
The BioShield UV system’s power supply should always be mounted to
a surface which does not expose the power supply to standing water.
Position ballast closer to the UV unit than the ow switch. The ow
switch has an additional 10 feet of cable.
NOTE: DO NOT mount the power supply in an extremely conned space
where heat and moisture can be retained.
Your UV system will include one of two different power supplies based
on the wattage of your unit:
•Four screws, one in each corner of the power supply, secure the power
supply to the wall or shelf.
Flow Switch
The recommended position for ow switch installation is on the outlet
of the UV system. Ensure the ow switch is not subject to ow agitation
resulting in false ow conditions. Pay attention to the ow switch ow
arrow and that it is pointing in the direction water ow.
Care must be exercised during threading operation to ensure threads
are not crossed and the bending beam target assembly does not touch
the inside surface of the tee. When threading into PVC ttings 2-3
layers Teon sealing tape is recommended.
Tighten 2-3 turns beyond nger tight.
Mandatory Leak Test
A leak test must be performed each time the quartz sleeve is installed
inside the unit’s vessel or when the quartz sleeve or gasket is replaced
[Once annually, minimum]. Performing a leak test is a precautionary
measure that will determine whether or not the critical seal between
the quartz sleeve and quartz sleeve module has been achieved.
Failure to achieve a proper quartz sleeve/quartz sleeve module seal
during BioShield® UV operation will allow water to leak into the inside of
the quartz sleeve, potentially damaging the UV lamp and other electrical
components, which could develop into dangerous situations.
IMPORTANT NOTE: Failure to perform a leak test could lead to
conditions that will void your product warranty.
To Perform Mandatory Leak Test:
1. Prepare the UV system for permanent operation by plumbing it in-line,
into a lter system using the plumbing hardware of your choice. If PVC
glue is used, follow the glue manufacturer’s instructions.
2. If UV lamp is installed, with the unit plumbed for operation and the
clear quartz sleeve module securely in place, remove the UV lamp
from the quartz sleeve module.
INSTALLATION

7
BIOSHIELD® UV SYSTEM Installation and User's Guide
INSTALLATION
3. Roll-up a few paper towels creating a
core approximately 3/4-inch diameter,
10-inches long then slide into the open
quartz sleeve module port. Insert
about 6-inches of the paper towel core
down into the quartz sleeve, as shown.
Hazardous pressure.
Risk of severe injury or major property
damage if tank explodes. Read the entire
procedure before starting system or
disassembling lter.
NOTE: Tightly close Drain Plug.
4. Open air relief plug located on top of vessel.
NOTE: Air trapped inside the lter greatly increases the explosion
hazard.
5. Start pump.
6. When a steady stream of water comes from air relief plug, close plug.
7. After thirty (30) minutes of recirculating water through the UV vessel,
remove the paper towels from the quartz sleeve module. Inspect
closely for moisture. If the paper towels are completely dry, the leak
test is successful.
8. If moisture is detected on the paper towel the quartz sleeve’s rubber
gasket has failed to achieve a seal and must be re-assembled;
repeat the leak test until a seal is achieved. See page 5 for assembly
instructions.
Electrical Connection
The BioShield UV system is intended to be permanently connected
to a Listed Pool Controller (i.e. IntelliTouch® or EasyTouch® Control
Systems) or a Listed Mechanical Timer Switch that provides a wiring
compartment for the connection of ancillary equipment.
Connect the UV System ballast to a UL Listed Pool Controller:
1. Route the UV power supply cable through the 1/2-inch trade size
conduit opening in the bottom of the control system enclosure.
2. Use the strain relief provided with the UV system to secure the power
supply cable to the control system enclosure.
3. Connectthe power supply cable leads to the appropriateterminations
inside the control system.
NOTE: The cable leads are tinned, or provided with Listed Wiring
Connectors (i.e. spade or closed loop), to allow for quick connection to a
relay terminal, wiring bar or other conductor termination.
Connect the UV System ballast to a UL Listed Mechanical Timer
Switch:
The UV system must be wired to the load side of the listed timer switch.
This will ensure the UV system only operates when the pump is running.
Refer to the instructions and wiring diagram below to properly wire the
power supply to a listed timer switch.
1. Wire the power supply’s BLACK lead to the terminal marked “L1”.
2. Wire the power supply’s WHITE lead to the terminal marked “N”
(Neutral) in 120 VAC installations or to the terminal marked “L2” in 240
VAC installations.
3. Wire the GREEN lead to the terminal marked “GND” (Ground).
Connect the UV System ballast to the Flow Switch:
1. The UV lamp will not operate if there is a low ow condition.
2. Locate the cable with the black M12 female connector from the
ballast.
3. Connect ballast cable connector to ow switch connector, by lining
up the notch and twisting one of the connectors clockwise until snug
allowing the two connectors to meet.
Flow Switch Electrical
The BioShield UV system is intended to operate with an inline ow
switch. The items provided are (1) ow switch with a M12 connector on a
10 foot cable, (1) 2.5”x1” (SxT) Tee and (2) 2.5”x2” (SxS) Reducers.
Once the ow rate is achieved, the ow switch will
trigger connecting pins 1 and 2. The ballast will
initiate, after the 25 second delay has expired.
The ow switch can be checked by testing the
continuity between pins 1 and 2, see diagram to right.
UV Lamp Installation
Failure to disconnect the power from the UV System
and pump before servicing the unit or replacing the lamp could result
in personal injury or property damage. Conrm the lamp is completely
off, via the view port, before attempting lamp replacement.
UV lamps are manufactured with color coded ceramic bases. Red or
Blue-capped UV lamps signify a High-Output UV lamp.
Use only High-Output UV lamps with the BioShield® UV.
NOTE: Care should be taken when installing the UV lamp into the vessel’s
quartz sleeve. Vertical installations require extra attention to eliminate
the chance of the lamp dropping into the quartz sleeve and breaking.
Quartz Sleeve Module Assembly
1. Remove packaging from new UV lamp.
2. Slowly insert UV lamp into the middle of Clear Quartz Sleeve Module
(7) until the 4-pins are just above the Clear Quartz Sleeve Module (7).
3. Connect the white 4-pin connector (2) to the UV lamp (1) by using a
side to side motion until white 4-pin is touching the UV lamp base.
4. Hold onto the cable (3) and slowly lower the UV lamp with white 4-pin
connected into Clear Quartz Sleeve Module (7).
Air Relief
Drain Port
1
4
3
2

8
BIOSHIELD® UV SYSTEM Installation and User's Guide
OPERATION
Initial Start-Up
1. Verify the black nut for the quartz sleeve module is secure.
2. If in vertical position loosen air bleed valve to allow air to escape the
unit and drain plug is secured.
3. Turn on pump.
4. Close the air bleed valve once a steady stream of water emerges.
5. Energize UV system ballast.
a. The ballast will delay the UV Lamp from illuminating for 25
seconds.
b. The 25 second delay is activated by either a manual power on or
a ow switch trigger.
6. Check the UV Lamp for illumination via the view port at either end of
the unit.
7. Once the UV Lamp is illuminated and there are no leaks the startup
is complete.
8. The ow switch will control the UV lamp during ow and low ow
conditions.
System Flow Rate Trigger Points
2.5” Schedule 40 Tee
Off Trigger On Trigger
11 GPM 19 GPM
This lter operates under pressure. With the valve
clamped properly and operated without air in the sys-
tem, this lter will operate in a safe manner. Air entering
the lter and the valve not clamped correctly can cause
the valve to separate, which could cause serious per-
sonal injury and/or property damage.
Always turn pump off before changing valve positions.
Changing valve positions while the pump is running can damage the
control valve, which may cause serious injury or property damage.
INSTALLATION
5. Once the Gray Power Supply Adapter (5) is touching the Clear Quartz
Sleeve Module (7), tighten Gray Power Supply Adapter (5) into Clear
Quartz Sleeve Module (7). Hand Tight Only.
6. Hold onto the cable (3) and tighten the Watertight Cord Connector (4)
until cable is secured.
7. Tighten Black View Port Cover (6) until it makes contact with the Clear
Quartz Sleeve Module (7).
NOTE: If retrotting the Black View Port Cover (P/N 960536) replaces
Black Nut.
Power Cord Adjustment
The lamp spacer (8) is provided to ensure the proper distance (4” Space
between 4-Pin (2) and Gray Power Supply Adapter (5)) is maintained for
the UV lamp. The proper positioning is important for UV effectiveness.
1. The 3/8-inch Threaded Watertight Cord Connector (4) is adjustable.
Loosen it gently move the cord through it. Care must be taken when
retightening. If the Connector’s Rubber Gasket Seal is dislodged
during cord adjustment please make sure that it is properly re-seated
inside the male threaded portion of the connector.
A minimum 4-inch distance must be maintained between
the Gray Reducer (5) and the white 4-pin Lamp Connector (2).
DO NOT REMOVE THE LAMP SPACER, ITEM #8!
2. After a successful leak test and without the power supply connected
to a control box, attach the lamp’s 4-pins to the power cord’s white
4-pin Connector. Then slide the UV lamp back into the quartz sleeve.
3. Care must be taken when installing the UV lamp into the vessel’s
quartz sleeve. Vertical installations require extra attention to
eliminate the chance of the lamp dropping into the quartz sleeve and
breaking.
4. With the UV lamp/power cord connection complete and the lamp
entirely inside the quartz sleeve, carefully tighten down the Gray
Power Supply Adapter (5) onto the Clear Quartz Sleeve Module (7)
hand tighten only.
5. Tighten down the Black View Port Cover (6) (P/N 960536) until it
makes contact with the Clear Quartz Sleeve Module (7).
NOTE: If you do not have the Black View Port Cover (6) back far enough
before tightening the Gray Power Supply Adapter (5), the gray adapter
will not make contact with the power supply gasket and will enable
outside moisture to enter the quartz sleeve assembly and cause a
system failure.

9
BIOSHIELD® UV SYSTEM Installation and User's Guide
MAINTENANCE
UV Lamp Replacement (Latex or Cotton Gloves)
Failure to disconnect the power from the UV System
and pump before servicing the unit or replacing the lamp could result
in personal injury or property damage. Conrm the lamp is completely
off, via the view port, before attempting lamp replacement.
Removing UV Lamp
1. Loosen Black Viewport Cover (6) until it no longer makes contact with
the Clear Quartz Sleeve Module (7).
2. Hold onto the cable (3) and loosen the Watertight Cord Connector (4)
by no less than 2 full revolutions.
3. Hold onto the cable (3) and loosen Gray Power Supply Adapter (5) until
disengaged from the Clear Quartz Sleeve Module (7).
4. Slowly pull the UV Lamp assembly straight out of the quartz sleeve
until the white 4-pin connector (2) and UV lamp (1) are visible.
5. Using Latex or cotton gloves hold onto lamp and use side to side
motion to disconnect the white 4-pin connector (2) from the UV lamp
(1).
6. Once disconnected, pull the UV lamp straight out of the quartz sleeve,
until UV lamp is free from the Clear Quartz Sleeve Module (7).
7. Set removed UV lamp to the side in the saved cardboard tube, in a
safe area.
UV Lamp Installation
UV lamps are manufactured with color coded ceramic bases. Red or
Blue- capped UV lamps signify a High-Output UV lamp.
Use only High-Output UV lamps with the BioShield® UV.
NOTE: Care should be taken when installing the UV lamp into the
vessel’s quartz sleeve. Vertical installations require extra attention to
eliminate the chance of the lamp dropping into the quartz sleeve and
breaking.
1. Remove packaging from new UV lamp.
2. Slowly insert UV lamp into the middle of Clear Quartz Sleeve Module
(7) until the 4-pins are just above the Clear Quartz Sleeve Module (7).
3. Connect the white 4-pin connector (2) to the UV lamp (1) by using a
side to side motion until white 4-pin is touching the UV lamp base.
4. Hold onto the cable (3) and slowly lower the UV lamp with white 4-pin
connected into Clear Quartz Sleeve Module (7).
5. Once the Gray Power Supply Adapter (5) is touching the Clear Quartz
Sleeve Module (7), tighten Gray Power Supply Adapter (5) into Clear
Quartz Sleeve Module (7). Hand Tight Only.
6. Hold onto the cable (3) and tighten the Watertight Cord Connector (4)
until cable is secured.
7. Tighten Black View Port Cover (6) until it makes contact with the Clear
Quartz Sleeve Module (7).
NOTE: If retrotting the Black View Port Cover (P/N 960536) replaces
Black Nut.
Quartz Sleeve Cleaning
It is recommended that the quartz sleeve be visually inspected for
cleaning once every six months of operation. Even the slightest layer of
material (slime/dirt) coating the outside of the quartz sleeve can have
a substantial effect on UV-C light transmittance through the glass and
into the water.
To Clean the Quartz Sleeve (for above water-level installations only):
1. Disconnect power to the UV and pool pump at the circuit breaker.
2. Relieve any residual pressure that may remain in the system.
3. Unthread the Black Retaining Nut and gently remove the Quartz
Sleeve Assembly and lamp from the UV vessel.
4. Inspect the Quartz Sleeve and clean as needed with a soft, clean
cloth.
5. If calcium deposits are present use vinegar or a mixture of water and
muriatic acid to dissolve the deposits. If using muriatic acid a ratio
of four parts water to one part acid should suce. Always introduce
acid to the water and never introduce the water to the acid.
Muriatic acid is corrosive and can lead to inammation or
burns to body tissue. ALWAYS wear rubber gloves, safety glasses and
an N-95 dust mask when handling acid to prevent serious bodily injury.
6. Remove ALL vinegar or acid from the quartz sleeve assembly before
reassembling.
7. Refer to “Initial Start-Up” to put UV System back in service.
Winterizing
Using the BioShield® UV in extremely cold temperatures can cause
damage to the unit, especially if the water is allowed to freeze inside
the equipment. Please note that damage to the product due to freezing
is not covered under warranty.
Pentair recommends shutting the UV system down when the
temperature consistently falls below 40°F (4°C).
1. Close the bypass valves so any water ow will bypass the UV and
prevent additional water from entering the UV body over the winter.
2. Drain the UV via the drain plug.
3. Remove the UV and pour out the remaining water from the body
through one of the open ports.
4. Skipping step 3 for vertical installations will leave the quartz sleeve
submersed in approximately 1.25” of water which when frozen will
break the quartz sleeve and will not be covered under warranty.
5. Reinstall the UV.
6. Upon restart of the system in the spring, seal kit replacement is
required.
7. See the applicable table in the Replacement Parts section for the
appropriate part number for the seal kit associated with your version
of UV.
NOTE: Be sure to replace the quartz sleeve gasket and perform a leak
test prior to operating the equipment.

10
BIOSHIELD® UV SYSTEM Installation and User's Guide
TROUBLESHOOTING
Mandatory Leak Test Indicates a Leak
1. Turn off the pool pump at the circuit breaker and be sure all ow to the
unit has been stopped.
2. Refer to page 5 for “Quartz Sleeve Module (QSM) Assembly:” and page
7 for “UV Lamp Installation” (in reverse order) to disassemble the unit.
3. Ensure there are no cracks or breakages in the Quartz Sleeve, that
the Quartz Sleeve Gasket is properly installed, and that the Quartz
Sleeve Retaining Nut has been tightened down completely
4. Reassemble the Quartz Sleeve (see page 5) and repeat the Mandatory
Leak Test (see page 6) until there are no indications of a leak.
GFCI/Breaker is tripping
1. Immediately disconnect power to the BioShield® UV.
2. Turn off the pool pump at the circuit breaker and be sure all ow to
the unit has been stopped.
3. Refer to page 5 for “Quartz Sleeve Module (QSM) Assembly:” and page
7 for “UV Lamp Installation” (in reverse order) to disassemble the unit.
4. Check for water/moisture inside the quartz sleeve.
5. Multiple appliances connected to a circuit protected by one GFCI
create the potential for cumulative leakage current resulting in a
tripped GFCI.
REPLACEMENT PARTS
Revision 3 UV unit with Flow Switch
Item # Description P/N
1 UV Lamp Below
2 4-Pin Lamp Connector 523034
3 UV Lamp Spacer 523423
4 Black Retaining Nut 411000
5, 7 Quartz Sleeve Retaining Module 523382
6, 7 Seal Kit 523383
9 Quartz Sleeve Below
BOLDED PARTS REQUIRE ANNUAL REPLACEMENT
Item # Description P/N
10* Quartz Sleeve Dampener Band 523403
11 UV Vessel (Only) Below
12 Union Sealing Gaskets (Qty 2) 410016Z
13 Union Adapter (Qty 1) 410002
14 Union Clip Ring (Qty 1) 410001
15 View Port Cover Kit 960536
Not Shown Vessel 3” Clamps Kit (Qty 2) 523098
*Refer to TSB 450044 for Optional Installation
Model No. UV Lamp P/N
Quartz Sleeve
P/N
Power Supply
P/N UV Vessel P/N
Air Relief Plug
P/N Drain Plug P/N
Flow Switch
P/N
522635 523035 523039 523460 523110
25010-0004 357161 523458
522636 523036 523040 523460 523111
522637 523037 523041 523460 523112
522638 523038 523042 523462 523113