PENTAIR 522635 Bioshield Ultra Violet Sterilizer User Guide

INSTALLATION AND
USER’S GUIDE
IMPORTANT SAFETY INSTRUCTIONS
READ AND FOLLOW ALL INSTRUCTIONS
SAVE THESE INSTRUCTIONS

1620 HAWKINS AVE., SANFORD, NC 27330 • 919-566-8000 • 10951 WEST LOS ANGELES AVE., MOORPARK, CA 93021 • 805-553-5000
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 BIOSHIELD® UV SYSTEM Installation and User’s Guide

IMPORTANT SAFETY INSTRUCTIONS

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 INSTALLATION 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 PRODUCT. THESE WARNINGS AND THE OWNER’S  MANUAL MUST BE LEFTWITH 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 product should not be used on pools that use 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. Confirm 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 fire or electrical shock, only use replacement lamps specified by the manufacturer.
DO NOT allow system to exceed 50 PSI (Pounds Per Square Inch).
DO NOT operate this unit above maximum flow rate. Operating the product in this 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 800-831-7133 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 qualified 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-flow” situations.
SAVE THESE INSTRUCTIONS

SYSTEM SPECIFICATIONS

System Specifications

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 specific operation schedules.
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 efficiency 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 800-831-7133.

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 fit 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 finger to ensure that the open-end of the quartz sleeve mates smoothly with the inside lip of the clear quartz sleeve module; this signifies a good fit.

5. With the quartz sleeve positioned inside the clear quartz sleeve module properly, finish 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 flush 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 flow rates higher than maximum flow rate. Operating the product in this manner will result in reduced effectiveness and voiding of warranty.

NOTE: The BioShield UV System has been certified as a water conditioning device only. These units have not been certified for supplemental or secondary disinfection use.
These units have been certified 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 flow rates found in the “Sizing Chart”, on page 4.

Flow Path: Skimmer(s)/Drain(s) > Pump > Filter > UV > Primary Sanitizer and Heater > Pool Returns
The UV must be positioned after the mechanical filter where it can receive only solid debris free water, optimizing UV transmittance/ performance. If you have a flow rate that exceeds the UV vessels rated flow, install a bypass loop.
The Q-10 fluid flow switch is supplied with a 2 1/2” x 1” PVC T. Teflon™ 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 Teflon tape to threads of bushing.
Tighten unit in tee until fluid leaks are eliminated, flow target is approximately centered along axis of pipe and flow direction arrows located on unit are aligned parallel with flow in pipe. When threading into PVC fittings 2-3 layers of Teflon sealing tape is recommended.
Tighten 2-3 turns beyond finger 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 fit 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 sufficient 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 sufficient 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 flow switch. The flow switch has an additional 10 feet of cable.
NOTE: DO NOT mount the power supply in an extremely confined 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 flow switch installation is on the outlet of the UV system. Ensure the flow switch is not subject to flow agitation resulting in false flow conditions. Pay attention to the flow switch flow arrow and that it is pointing in the direction water flow.
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 fittings 2-3 layers Teflon sealing tape is recommended.
Tighten 2-3 turns beyond finger 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 filter 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.

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 filter.
   NOTE: Tightly close Drain Plug.

4. Open air relief plug located on top of vessel.
   NOTE: Air trapped inside the filter 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. Connect the power supply cable leads to the appropriate terminations 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 flow condition.
2. Locate the cable with the black M12 female connector from the ballast.
3. Connect ballast cable connector to flow 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 flow switch. The items provided are (1) flow 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 flow rate is achieved, the flow switch will trigger connecting pins 1 and 2. The ballast will initiate, after the 25 second delay has expired. The flow 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. Confirm 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).
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 retrofitting 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.

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 flow 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 flow switch will control the UV lamp during flow and low flow conditions.

System Flow Rate Trigger Points

System Flow Rate Trigger Points

2.5” Schedule 40 Tee
Off Trigger| On Trigger
11 GPM| 19 GPM

This filter operates under pressure. With the valve clamped properly and operated without air in the system, this filter will operate in a safe manner. Air entering the filter and the valve not clamped correctly can cause the valve to separate, which could cause serious personal 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.

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. Confirm 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 retrofitting 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 suffice. Always introduce acid to the water and never introduce the water to the acid.
   Muriatic acid is corrosive and can lead to inflammation 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 flow 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.

TROUBLESHOOTING

Mandatory Leak Test Indicates a Leak

1. Turn off the pool pump at the circuit breaker and be sure all flow 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 flow 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

BOLDED PARTS REQUIRE ANNUAL REPLACEMENT

*Refer to TSB 450044 for Optional Installation

Revision 3 UV unit

BOLDED PARTS REQUIRE ANNUAL REPLACEMENT

*Refer to TSB 450044 for Optional Installation

BOLDED PARTS REQUIRE ANNUAL REPLACEMENT

NOTE (*): Replacement UV Vessels will be REV3

1620 HAWKINS AVE., SANFORD, NC 27330 • 919-566-8000
10951 WEST LOS ANGELES AVE., MOORPARK, CA 93021 • 805-553-5000
This document is subject to change without notice.
©2023 Pentair. All rights reserved. Pentair.com

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