Pentair SMART UV EU18-U User manual

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

2
SMART UV® SYSTEM Installation and User's Guide
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3
SMART UV® SYSTEM Installation and User's Guide
Important Warning and Safety Instructions .......... 4
Warranty Information ............................................... 5
System Features and Specications...................... 6
SMART UV®Features .......................................... 6
System Specications......................................... 6
Pre-Installation Inspection ..................................... 7
Component Diagram ........................................... 7
Power Supplies .................................................... 7
Quartz Sleeve and UV Lamp Inspection ............8
Installation .................................................................9
Quartz Sleeve Assembly and Installation ..........9
Installation and Operation ................................ 10
Typical Installation ...................................... 10
Mounting the Vessel.................................... 10
Mounting the Power Supply ....................... 11
Mandatory Leak Test......................................... 12
Electrical Requirements.................................... 12
UV Lamp Installation ......................................... 13
Lamp Styles................................................. 13
Power Cord Adjustment ............................. 13
SMART UV Installation and Operation............. 14
Pond Installation Congurations................ 14
Aquarium Installation Congurations ........ 14
Maintenance........................................................... 16
Quartz Sleeve Cleaning..................................... 16
Winterizing ......................................................... 16
Lamp Connector Removal ................................ 17
Troubleshooting ...................................................... 18
Replacements Parts ............................................... 19
SMART UV ......................................................... 19
SMART HO UV (Before 8/20/2020) ...................20
SMART HO UV ................................................... 21
TABLE OF CONTENTS

4
SMART UV® SYSTEM Installation and User's Guide
IMPORTANTNOTICE
This guide provides installation and operation instructions for the
SMART UV®System. 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 should 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, include the
following:
FAILURE TO FOLLOW ALL INSTRUCTIONS AND
WARNINGS CAN RESULT IN SERIOUS BODILY INJURY OR
DEATH.
INSTALLERS, OPERATORS AND OWNERS MUST READTHESE
WARNINGS AND ALL INSTRUCTIONS IN THE OWNER’S
MANUAL BEFORE USING THIS PRODUCT. THESE WARNINGS
AND THE OWNER’S MANUAL MUST BE LEFT WITH THE
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 UVenergy from entering the eyes.
ULTRAVIOLET RADIATION. Disconnect all power
from the unit before replacing lamps or servicing the unit.
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 20 PSI (Pounds Per
Square Inch).
DO NOT operate this unit above rated flow rate.
Operating the product in this manner may result in product failure
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 situation, DO NOT attempt repairs yourself. Call
Pentaircustomer service department at 877-347-4788 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 ofwaterleakage, immediately
power down the unit.
Carefully examine the unit after installation. It should
not be powered on if there is water on any part not intended to be wet.
IMPORTANT SAFETY INSTRUCTIONS

5
SMART UV® SYSTEM Installation and User's Guide
To reduce the risk of injury, DO NOT permit children to
use this product.
SMART UV®Systems are designed for low-pressure
water applications DO NOTuse these units forany 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 must 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 must be taken to arrange the cord so
that it will not be tripped over or pulled. If in doubt consult a qualified
electrician.
Warping of the UV body may occur when left in direct
sunlight without water inside to help dissipate the heat.
DO NOToperate the unit in “no-flow” situations.
SAVE THESE INSTRUCTIONS
PENTAIR warrants tothe original purchaser, the SMARTUVSystems
to be free from defects in workmanship or materials for a period of 1
yearfrom the date purchase on power supply and all gaskets seals.
The UVvessel has a 3-year warranty if failure is caused from the UV
lamp light exposure. Warranty will be void if water leaks are caused by
failing to follow the proper assembly and maintenance instructions.
The UVlamp has a 90-daywarranty on the electrical operation only.
The warranty is only in effect provided the equipment is installed
in accordance with the factory instructions, recommendation and
operated within the environment and limitations for which it was
designed.
IMPORTANT SAFETY INSTRUCTIONS
WARRANTY INFORMATION

6
SMART UV® SYSTEM Installation and User's Guide
All SMART UV®System models are packaged
complete, with all necessary components that are
required to operate the unit. When unpacking, it is
recommended to perform a complete component
inventory to ensure everything is accounted for and
hasn't been damaged.
The serial number of your UV unit is located on a
small white label near the electrical end of the unit’s
vessel.
The model number of your UV unit can be found in
two locations:
1. On the bar code label at the end of the box.
2. On the label placed in the middle of the UV Vessel,
with a hole punch indicating the model number.
SMART UV Features
Our GPH T-5 and T-6 low pressure lamps, convert
approximately 30% of their electrical input watts into
UV-C output watts.
• UL listed for indoor and outdoor use, fresh and salt
water use.
• Long lasting GPH/T5 and GPH/T6 UV lamps.
• Protective Quartz Sleeve.
• Watertight Design.
• Easy-to-Remove Power Assembly.
• Remote Power Supply.
• UV Resistant High Density Plastic UV Vessel.
• Non-UV Transmitting Clear Lamp Viewing Ports.
SYSTEM FEATURES AND SPECIFICATIONS
System Specications
Model No.
Max Flow
Rate @ 30
mJ/cm2
Lamp
Wattage
Amperes
(A)
UV-C
Output
Watts
Dimensions
H x W
(Inches)
Input Voltage
(50/60 Hz)
Port
Connection
EU18-U 6 GPM 18 0.34-0.17 5.4 23” X 4” 120-240 VAC
1.5” Union/
1” Barb
EU25-U 9.5 GPM 25 0.40-0.20 7.5 29” X 4” 120-240 VAC
EU40 15.5 GPM 40 0.44-0.22 12 44” X 4” 120-240 VAC
EU65P 26 GPM 65 0.46-0.23 19.5 71” X 4” 120-240 VAC
E50S 25 GPM 50 1.15/0.57 15 28" x 5.75" 120-240 VAC
2.5" union
with
2" reducer
or
3" SPIG
E80S 45 GPM 80 1.15/0.57 26 43" x 5.75" 120-240 VAC
E120S 64 GPM 120 1.15/0.57 36 56" x 5.75" 120-240 VAC
E150S 100 GPM 150 1.82 47 70" x 5.75" 120 VAC
E150S-230 100 GPM 150 0.91 47 70" x 5.75" 240 VAC

7
SMART UV® SYSTEM Installation and User's Guide
All SMART UV®units are packaged complete, with
all necessary components that are required to
operate the unit. When unpacking your SMART UV
System, we recommend that a complete component
inventory be taken to ensure that all components
are included and accounted for, prior to installation.
Serial Number
The model number of your UV unit can be found in
two locations:
1. The bar code label at the end of the box.
2. The label placed in the middle of the UV Vessel.
SMART units have their serial number labels
located on the UV vessel.
Component Diagram
Please review the component diagram below.
Unpack your UV system, and lay out the packaged
components for inspection. Please review the
information listed in this section to become familiar
with the equipment’s various parts.
SMART UV®System Models:
Part Numbers EU18-U, EU25-U, EU40 & EU65P
SMART UV HO System Models:
Part Numbers E50S, E80S, E120S & E150S
Power Supplies
The power supply can either be a cylinder “POD”
or a rectangle style. Below are the ballasts that are
currently used with the SMART UV line.
For SMART Lite and SMART
18W, 25W, 40W, and 65Watt Units.
20120-MV – 120VAC/240VAC 50/60 Hz
For SMART HO 50W, 80W, and 120Watt Units.
20105-MV – 120VAC/240VAC 50/60 Hz
For SMART HO 150W (120VAC)
202150-1 – 120VAC 50/60 Hz
For SMART HO 150W (240VAC)
202150-2 – 240VAC 50/60 Hz
PRE-INSTALLATION INSPECTION

8
SMART UV® SYSTEM Installation and User's Guide
Quartz Sleeve and UV Lamp Inspection –
When Packed in Tube
SMART UV®Systems are packaged with their quartz
sleeve assembly pre-assembled inside the UV vessel.
The UV lamp is packaged separately in a corrugated
tube.
The Quartz Sleeve Assembly must be removed from
the UV vessel and inspected for damage prior to
installation. Extreme care must be used while this
procedure is being performed.
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.
1. Carefully unpack the UV lamp from its 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, reassemble the quartz sleeve
back into the UV vessel. Perform the Mandatory
Leak Test (see page 12).
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
the place of original purchase immediately for
replacements.
PRE-INSTALLATION INSPECTION

9
SMART UV® SYSTEM Installation and User's Guide
Improper assembly may result in water
damage to electrical components and unsafe
conditions. The manufacturer is not responsible for
damage cause by improper re-assembly of these parts.
For Models EU18-U, EU25-U, EU40,
and EU65P
Quartz Sleeve Module (QSM) Assembly:
1. Quartz Sleeve
2. QSM Retaining Nut
3. QSM Blue Compression Gasket
4. QSM Sealing Gasket
5. QSM Sealing O-Ring
6. Quartz Sleeve Module
For Models E50S, E80S, E120S, E150S
Quartz Sleeve Module (QSM)
Assembly Includes:
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
and 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 white 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 white
retaining nut is tight, the quartz sleeve must 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 funnel located on the non-electrical
end of the UV vessel.
INSTALLATION

10
SMART UV® SYSTEM Installation and User's Guide
7. With the quartz sleeve assembly properly in place,
the quartz sleeve retaining module will sit ush
against the top of the UV vessel.
NOTE: Be sure that the clear quartz sleeve module
gasket is properly seated in the bottom of the quartz
sleeve module.
8. Thread the black retaining nut onto the male
threads of the UV vessel. Hand tight only!
9. Using the instructions given on page 12, perform
the Mandatory Leak Test. If no leaks are found
proceed to page 13, UV Lamp Installation, for
instructions on installing the UV lamp.
Installation and Operation
DO NOT operate the UV system at ow
rates higher than the suggested maximum ow rates.
Operating the product in this manner may result in
product failure and voiding of warranty.
Suspended solid debris will absorb UV light and
reduce the UV transmittance through water.
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.
Vertical Vessel Mounting
Mount the SMART UV with the electrical end up. Use
the bottom port as the inlet with the top port as the
outlet.
Note: The UV vessel must be installed with a vertical
clearance 1½ times the vessel length. This will allow
sucient room for servicing the unit and replacing
the UV lamp and/or quartz sleeve.
The inlet and outlet plumbing MUST be
supported to avoid vessel material stress.
Failure to support the inlet and outlet plumbing may
lead to damage to the vessel.
INSTALLATION

11
SMART UV® SYSTEM Installation and User's Guide
Horizontal Vessel Mounting
Mount the SMART UV System horizontally with the
inlet/outlet facing up. If the unit is mounted but not
level, the electrical end of the unit must be positioned
higher than the non-electrical end.
NOTE: The UV vessel must be installed with a
horizontal clearance 1½ times the vessel length. This
will allow sucient room for servicing the unit and
replacing the UV lamp and/or quartz sleeve.
Mounting the Power Supply
Depending on the style of power supply cylinder or
rectangle the SMART UV®System’s power supply
can be mounted two ways, mounting tabs at the
corner of the ballast or using the mounting clamps for
the cylinder type of ballast. The power supply must
always be mounted to a surface that is sheltered from
rain, splashing, heavy condensation or any other kind
of prolonged contact with water.
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 dierent
power supplies based on the wattage of your unit:
• 50W, 80W and 120W UV systems include a
rectangular power supply. Four screws, one in
each corner of the power supply, secure the power
supply to the wall or shelf.
• 150W UV systems include a cylindrical power
supply that must be mounted with the two pipe
clips packaged with the unit.
A single screw at the base of the pipe clip secures it
to the wall or shelf. The power supply is then locked
into the pipe clip by securing the retaining strap onto
the clip.
INSTALLATION

12
SMART UV® SYSTEM Installation and User's Guide
INSTALLATION
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 gaskets are 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 SMART 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.
3. Roll-up a few paper towels creating a core
approximately 3/4inch 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.
4. 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.
5. 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 9 for
assembly instructions.
Electrical Requirements
The electrical requirements are marked on the unit’s
power supply label (Ex. 120/240VAC 50/60Hz.). The
unit must be plugged into a well-grounded electrical
outlet.
Do not attempt to cut the ground post
o of the 3-prong plug, doing so will void the unit’s
warranty.
This product must be grounded. If the unit should
fail electrically, grounding provides a path of least
resistance for electric current to pass to reduce
the risk of electric shock. This product’s cord is
equipped with an equipment-grounding conductor
and a grounding plug. The plug must be plugged
into an appropriate outlet that is properly installed
and grounded in accordance with all local codes and
ordinances. If in doubt consult a qualied electrician.
DO NOT operate this equipment with
timing devices.
Improper connection of the equipment-
grounding conductor can result in a risk of
electrocution. Check with a qualied electrician or
service personnel if unsure that the outlet is properly
grounded. Do not alter the product's plug. If it will
not t into the electrical outlet, have a proper outlet
installed by a qualied electrician.

13
SMART UV® SYSTEM Installation and User's Guide
INSTALLATION
Ground Fault Circuit Interrupter
(GFCI) Protection
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 must 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 fewer amperes
or watts than the appliance’s rating may overheat.
Care must be taken to arrange the cord so that it will
not be tripped over or pulled. If in doubt consult a
qualied electrician.
GFCI’s are designed to sense an imbalance in
electrical current ow within the main electrical leads
(leakage current). When this imbalance (maximum 5
mA per UL) occurs in the main leads, a comparator
within the GFCI outlet generates a trip signal which is
applied to a coil that trips the main (normally closed)
contacts. These contacts open and break the circuit.
Ghost Trips
Consider that all GFCI’s must trip at a leakage current
of 5 ma. GFCI “Ghost Trips” are caused by electrical
devices that have small electrical leakage current to
ground. Multiple outlets protected by one GFCI allow
for potential cumulative leakage currents caused by
multiple appliances each leaking small amounts of
current.
Example: One pump plugged into an outlet that is
part of a four outlet branch protected by one GFCI
will not trip the GFCI with its 2 mA leakage current.
However, two pumps and a UV with a cumulative
leakage current of 7 mA will trip the GFCI. This is a
common problem.
The solution to the GFCI “Ghost Trip” problem is to
operate the device on its own GFCI protected outlet,
or, remove other devices from the GFCI protected
branch of outlets. If the GFCI is over ten years old,
you may want to consider replacing it.
UV Lamp Installation
Lamp Styles
UV lamps are manufactured with color coded ceramic
bases. White-capped UV lamps signify a Standard-
Output UV lamp while red or blue capped UV lamps
signify a High-Output UV lamp.
A 4” Space between 4-Pin (4) and Gray Power Supply
Adapter (3) must be maintained. The proper positioning
is important for UV eectiveness.
1. The 3/8-inch Threaded Watertight Cord Connector
(1) 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.
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 (2) onto the Clear Quartz Sleeve Module
hand tighten only.
5. Tighten down the Black Jamb Nut (3) until it makes
contact with the Clear Quartz Sleeve Module.
NOTE: If you do not have the Black Jamb Nut (3)
back far enough before tightening the Gray Power
Supply Adapter (2), 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.

14
SMART UV® SYSTEM Installation and User's Guide
OPERATION
SMART UV®Installation and Operation
SMART UV Systems are used in a variety of
applications. Pentair encourages the consideration
of the installation/operation recommendations
provided here.
Suspended solid waste will absorb UV light and
reduce the UV transmittance through water. By
operating the SMART UV after the mechanical lter,
the unit’s overall performance will be increased.
When operating SMART UV please consider the
recommended water ow rates.
Pond Installation Congurations
Small to Moderately Sized Ponds (up to 5,000
Gallons) Using Skimmers and Falls
Placing the UV between the skimmer box and the
lter ensures that pre-ltered water reaches the
UV, increasing its performance while reducing
maintenance.
Often the capacity of the pump exceeds the capacity
of the UV. If this is the case, install a bypass manifold.
Be sure that the skimmer is equipped with mechanical
ltering capacity. See Diagram 1.
NOTE: Before gluing piping or reducer bushing into
the UV’s union or socket, remove the quartz sleeve
assembly to prevent glue from dripping onto the
quartz sleeve.
NOTE: Use threaded seal tape on all threaded
connections.
Larger Sized Ponds (above 5,000 Gallons) Using
Surface Skimmer and Pressurized Filter
This system is simple yet it achieves critical ltering
goals, such as good water circulation for increased
solid waste suspension. The bottom drain/surface
skimming capabilities ensure maximum waste
removal. See Diagram 2.
The SMART UV System is positioned after the
mechanical lter where it can receive only solid
waste free water, optimizing UV transmittance/
performance. Notice the 3-way valve that regulates
suction from the skimmer and drain to the pump,
allowing ow control.
Next, multiple “clean water returns” improve
circulation, suspending solid waste and helping it to
nd the lter. If you have a ow rate that exceeds the
UV’s, install a by-pass manifold. See Diagram 1.
NOTE: Before gluing piping or reducer bushing into
the UV’s union or socket, remove the quartz sleeve
assembly to prevent glue from dripping onto the
quartz sleeve.
NOTE: Use threaded seal tape on all threaded
connections.
Aquarium Installation Congurations
Canister Filter/Aquarium Installation
Pressurized Canister lters are commonly used with
small freshwater/saltwater aquariums. Diagram 3
shows a SMART UV model.
It is important to match the Canister Filter’s ow rate
to the capacity of the SMART UV. If this is not feasible,
use a bypass manifold (see Diagram 5 on page 15).
To prevent back-siphoning, consider installing a
check valve or ball valve.

15
SMART UV® SYSTEM Installation and User's Guide
OPERATION
NOTE: Before gluing piping or reducer bushing into
the UV’s union or socket, remove the quartz sleeve
assembly to prevent glue from dripping onto the
quartz sleeve.
NOTE: Use threaded seal tape on all threaded
connections.
Wet-Dry with External or Submersible Pump
Installation
This installation conguration shows the SMART
UV®System capacity matched to the recirculating
ow rate performance of the pump. We recommend
mechanical lter media being used inside the over-
ow and at the top of the wet-dry lter.
Installing a check valve after the UV will eliminate back
siphoning. Installing true-union ball valves will allow
ow adjustments and UV removal. See Diagram 4.
NOTE: Before gluing piping or reducer bushing into
the UV’s union or socket, remove the quartz sleeve
assembly to prevent glue from dripping onto the
quartz sleeve.
NOTE: Use threaded seal tape on all threaded
connections.
Wet-Dry w/External or Submersible Pump
Installation
This installation conguration is identical to Diagram
4 with the addition of a bypass manifold. The bypass
is used to deliver a precise water ow to the SMART
UV when the overall clean water return ow rate
exceeds the UV’s capacity.
Installing a check valve after the UV will eliminate
back siphoning. Installing true union ball valves will
allow ow adjustments and easy UV removal for
servicing. For best results, install a saddle-style water
ow meter, mounted horizontally on the outlet side of
the UV. Follow the water ow meter manufacturer’s
instructions.
NOTE: Before gluing piping or reducer bushing into
the UV’s union or socket, remove the quartz sleeve
assembly to prevent glue from dripping onto the
quartz sleeve.
NOTE: Use threaded seal tape on all threaded
connections

16
SMART UV® SYSTEM Installation and User's Guide
MAINTENANCE
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 eect on UV-C light transmittance
through the glass and into the water.
Cleaning frequency is also dependent on how well
water is being ltered before reaching the SMART
UV®Systems. Water that contains solid waste will
deposit greater amounts of material onto the quartz
sleeve and will increase the frequency of necessary
cleaning.
To Clean the Quartz Sleeve (for above water-level
installations only):
1. Disconnect power to the UV system and 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.
To prevent degradation of the acid by UV
light, store muriatic acid in an opaque
container and away from direct sunlight.
6. Remove ALL vinegar or acid from the quartz sleeve
assembly before reassembling.
Winterizing
Using the SMART 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 inches 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.

17
SMART UV® SYSTEM Installation and User's Guide
MAINTENANCE
Lamp Connector Removal
In the event that you would need to replace you
4-pin lamp connector, follow these steps:
1. Unplug the UV system and disconnect power to
the water pump at the circuit breaker.
2. Remove UV lamp from the quartz sleeve.
3. Unplug the UV lamp from the connector/power
cord.
4. Grasp the white 4-pin lamp connector with a pair of
pliers while standing on the power cord itself.
5. Pull hard, while twisting slightly. The connector will
disconnect.
6. Check to be sure the ends of the electrical wires
are still tinned; they are pre-soldered before they’re
pushed into the connector. If they are no longer
tinned, you will need to dip them in ux and then
solder to make them rm enough to push back in
the new lamp connector.
NOTE: Clean away any residual ux o of the wires
before assembling them into the lamp connector.
7. Using a “new” 4-pin lamp connector, push the
power cord’s tinned wires into the holes of
the connector making sure that they are rmly
attached. Once attached, the wires must not pull
out of the connector. See Diagrams below for wire
placement.
8. Plug lamp back into the connector.
9. When installing the lamp be sure to have Black
Power Supply Jam Nut all the way back on gray
adapter. Tighten down the Gray Power Supply
Adapter rst and then secure the black jam nut.
See “UV Lamp Installation” on page 13.
NOTE: If you do not have the Black Power Supply
Jam Nut back far enough before tightening the Gray
Power Supply Adapter, the gray adapter will not make
contact with the power supply gasket and will enable
outside moisture to enter the quartz sleeve assembly
and potentially cause system failure.

18
SMART UV® SYSTEM Installation and User's Guide
TROUBLESHOOTING
Paper Towel Leak Test Indicates a Leak
1. Turn o the pump at the circuit breaker and be sure
all ow to the unit has been stopped.
2. Refer to page 9 for “Quartz Sleeve Assembly”
and page 13 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 9) and
repeat the Mandatory Leak Test (see page 12) until
there is no indications of a leak.
GFCI/Breaker is tripping
1. Immediately disconnect power to the SMART UV®.
2. Turn o the pump at the circuit breaker and be sure
all ow to the unit has been stopped.
3. Refer to page 9 for “Quartz Sleeve Assembly”
and page 13 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.
Pond Still Green after a Week of UV
Operation
1. Ensure the UV lamp is lit by utilizing the safe
viewing port.
2. A dirty quartz sleeve can reduce the UV system's
performance. If the Quartz sleeve is dirty refer to
“Quartz Sleeve Cleaning” on page 16 for cleaning
procedures.
3. Double check the unit’s ow rate and compare to
the ow rate chart for your specic UV model.

19
SMART UV® SYSTEM Installation and User's Guide
REPLACEMENT PARTS
# PARTS ITEM #
1 UV Lamp
EU18-U (18 WATT) FL-2536-IP
EU25-U (25 WATT) FL-2542-IP
EU40 (40 WATT) FL-1957-IP
EU65P (65 WATT) FL-2529-IP
2 4-Pin Lamp Connector 709-1S
3 Lamp Spacer (Optional) 960503
5 Black Retaining Nut 8050B20
12 Quartz Sleeve
EU18-U (18 WATT) FL-QZ173-IP
EU25-U (25 WATT) FL-QZ175-IP
EU40 (40 WATT) FL-QZ176-IP
EU65P (65 WATT) FL-QZ167-IP
13 UV Housing – with unions
EU18-U (18 WATT) 960359
EU25-U (25 WATT) 20425
EU40 (40 WATT) 20440
EU65P (65 WATT) 20465
EU80P (80 WATT) NA
EU130P (130 WATT) NA
# KITS ITEM #
Quartz Sleeve Module – QSM
Includes 6 thru 8 Z000-005
6 QSM O-Ring BN70-232
7 QSM Gasket 960409
8Quartz Sleeve
Compression Gasket 960563
Union Assembly – 1.5”
Includes 14, 15, 16 ZUNIONB15
14 Inlet/Outlet O-Ring EP70-228
15 Inlet/Outlet Socket 8458B15
16 Inlet/Outlet Nut 8050-B15
Barb/Reducer Assembly
Includes 17, 18 960090
Ballast Assembly – 120/230VAC, 50/60 Hz
Includes 2, 3, 4 20120-MV
Seal Kit – 18, 25, 40, 65W
Items 6, 7, 8, 14 20375
Seal Kit – 80w, 130w
Items 6, 7, 8, 14 20374-AQ
NOTE: Seals must be changed every year.

20
SMART UV® SYSTEM Installation and User's Guide
REPLACEMENT PARTS (BEFORE 8/20/2020)
# PARTS ITEM #
1 UV Lamp
E50S (50 WATT) FL-2538-IP
E80S (80 WATT) FL-2997-IP
E120S (120 WATT) FL-2998-IP
E150S (150 WATT) FL-2999-IP
2 4-Pin Lamp Connector 709-1S
4 Lamp Spacer (Optional) 960503
5 Black Retaining Nut 8050B20
12. Quartz Sleeve
E50S (50 WATT) FL-QZ175-IP
E80S (80 WATT) FL-QZ176-IP
E120S (120 WATT) FL-QZ165-IP
E150S (150 WATT) FL-QZ167-IP
13 UV Housing – with unions
E50S (50 WATT) 209050
E80S (80 WATT) 209080
E120S (120 WATT) 209120
E150S (150 WATT) 209150
# KITS ITEM #
Quartz Sleeve Module – QSM
Includes 7 thru 11 Z000-005
6 QSM O-Ring BN70-232
7 QSM Gasket 960409
8Quartz Sleeve
Compression Gasket 960563
White Retaining Nut 25004
Union Assembly – 2" (Qty = 1 Union)
Includes 3, 5, 6, 7 ZUNIONB20
6 Inlet/Outlet O-Ring BN70-232
3 Inlet/Outlet Socket 8458-B20
5 Inlet/Outlet Nut 8050B20
Ballast Assembly -50/60 Hz
Includes 2, 4
50W, 80W, 120W
(120/230VAC) 20105-MV
150W (120VAC) 202150-1
150W (230VAC) 202150-2
Seal Kit – 50, 80, 120, 150W
Items 6, 7, 8 20375
NOTE: Seals must be changed every year.