Waterite Excelight EL08NSFAK User manual

NSF 55A CERTIFIED RESIDENTIAL ULTRAVIOLET
WATER DISINFECTION SYSTEM
OWNER’S MANUAL
For Excelight Ultraviolet system model
EL08NSFAK
IMPORTANT!
READ AND UNDERSTAND THE TERMS OF THE
MANUFACTURER’S WARRANTY ON PAGE 14 OF
THIS MANUAL. FILL OUT THE WARRANTY
REGISTRATION CARD WITH THE CSA NUMBER
FOUND ON THE BALLAST
R1
©Copyright 2020 by Waterite, Inc.

1
Congratulations!
Your new Excelight UV disinfection system is made from the highest quality
components available and is designed to provide many years of reliable
service. Please take the time to read this manual completely so that you may
provide the correct installation and maintenance, ensuring optimal system
safety, performance and life.
REGISTER YOUR PRODUCT ONLINE AT WATERITE.COM OR FILL OUT
THE INCLUDED PRE-PAID, SELF ADDRESSED POSTCARD.
WARNING!
WHERE MICROBIOLOGICALLY ACTIVE WATER IS KNOWN TO EXIST, IT IS
HIGHLY RECOMMENDED THAT AT LEAST ONE ADDITIONAL
DISINFECTION BARRIER SUCH AS CHLORINATION OR ABSOLUTE
FILTRATION IS USED TO TREAT DRINKING WATER, IN ADDITION TO UV
TREATMENT. CAREFULLY MAINTAIN ALL WATER TREATMENT
EQUIPMENT AND HAVE DRINKING WATER TESTED REGULARLY.
UV RADIATION HAZARD
NEVER OPERATE A UV LAMP OUTSIDE THE DISINFECTION CHAMBER.
EXPOSURE TO UV LIGHT CAN RESULT IN SERIOUS INJURY AND
EXTREME BURNING OF THE SKIN AND EYES
Excelight UV disinfection systems are equipped with a visual lamp failure
alarm. For your safety, it is necessary that you determine that the visual
alarm can be seen easily where you install the unit.
In order to optimize the disinfection performance, you must only use the unit
with water that meets or exceeds the minimum standard and replace the UV
lamp at recommended intervals (9000hrs). Failure to follow these guidelines
will result in reduced disinfection performance.
Excelight NX UV systems can be ordered with an optional solenoid valve.
This valve when activated will shut off the flow of water when an alarm
condition is present, or if the UV power source loses power for any reason,
preventing you from using any untreated water.

2
SAFETY INSTRUCTIONS
Danger - To reduce the risk of electrical shock, this system must be grounded.
Connect your UV system to a grounded, GFI protected (3 pronged) receptacle
(120vac 60hz) and ensure that the lamp connector ground wire is securely
attached to the grounding lug on the UV chamber.
Do not plug in unit if any of the external surfaces or electrical components are wet.
It is normal for there to be some condensation on the stainless-steel chamber in
high humidity climates.
To avoid possible electric shock, special care should be taken since water may be
present near electrical equipment. Unless referred to in these instructions, do not
attempt repairs to the unit yourself. Contact the manufacturer for service advice.
Do not operate this system if it has a damaged electrical cord, if the plug-end is
malfunctioning, or the unit has been dropped or damaged in any way.
Do not use this unit for anything other than its intended potable water application.
The use of attachments not recommended, approved, or sold by the
manufacturer/distributor may result in an unsafe condition.
Before doing any cleaning or maintenance, always unplug the electrical ballast and
isolate and drain the chamber.
Protect your unit from freezing. Drain all water from unit if freezing temperatures
exist.
RAW WATER QUALITY
It is strongly recommended that you have your raw water professionally tested for
dissolved mineral content, turbidity and microbiological activity. Your UV
disinfection system requires clean, clear water for optimum performance. You
should only operate your unit if the source water meets the following minimum
standards:
Turbidity <1 NTU
Suspended Solids <10mg/L
Colour None
Total Iron <0.3mg/L
Manganese <0.05 mg/L
Hardness <7 gpg
UVT% >80%
Where raw water conditions do not meet these minimum standards, pre-treatment
equipment such as an inline or automatic filter(s), ion exchange softener or an RO
system must be installed. Consult with your local water treatment specialist for
advice.

3
SYSTEM COMPOMENTS
Electrical Sleeve Mounting Chamber Thermal Sleeve
Cap O rings Bracket (2) Control Valve Cap
Power Flow
Cord Restrictor
Transmittance Ballast Quartz Ultraviolet Thermal Control
Sensor 120vac Sleeve Lamp Valve Adapter
BALLAST AND DISPLAYS
Function display mj/cm2Reset Transmittance
indication Button Monitor Port
(2 pin)
On/Off
Optional
Solenoid Port
120 Vac 60 hz (3 pin)
Receptacle
Lamp pin Electrical Chamber Lamp
Connector Sealing Cap Ground Wire Harness

4
Where microbiological activity is indicated to be present in your water
source, it is highly recommended that additional disinfection barriers be
used in addition to your UV system. This could include water well
chlorination using a pellet dispenser, inline chlorine injection using a dosing
pump and a contact tank, <1-micron absolute filtration or ozone injection.
The use of multiple barriers will assure safe drinking water in the event of
the failure of any one of the disinfection methods.
INSTALLATION CAUTIONS
Connect your UV lamp to a grounded (3-pronged)
receptacle (120V/60Hz) (a GFI and power surge
protector is highly recommended) and ensure that
the lamp connector ground wire is connected to the
grounding stud on the end of the reactor vessel.
Grounding Lug
1. Excelight UV disinfection devices are designed to be installed on the cold-water
line only.
2. Install the Excelight UV disinfection system indoors in a protected area where
the temperature does not fall below 4°C (40°F) and the humidity level is low (to
prevent condensation on the chamber). This unit functions optimally between
9-29°C (49-85°F)
3. Use Teflon tape on all plumbing connections. Do not use other sealants.
4. If a pump is used in the water filtration system where the UV disinfection system
is installed, the UV disinfection system should not connect to the same AC
supply circuit as the pump. The voltage drop caused by the pump starting may
trigger an abnormal operating condition alarm on the UV ballast.
INSTALLATION PROCEDURE
In most installations, your UV disinfection system should be the last component in
your water treatment system, downstream from all other equipment. Choose a
location for installation with easy access to a 120VAC electrical outlet. This UV
system must be installed vertically with the inlet port positioned below the outlet
port.
A minimum distance of 17” (438mm) clearance is necessary to remove the
UV lamp from the reactor. If this is not practical the reactor can be removed
from the mounting clips for maintenance. Use of unions on the inlet and
outlet will facilitate this removal.

5
1. Shut off the main water supply valve.
2. Mount the unit to the wall in the selected location using the brackets and screws
provided. (Fig. 1)
3. Mount the power supply beside or above the reactor vessel to assure that any
leaks cannot migrate to the power source. Never mount the power supply
below the reactor chamber. (Fig 2) DO NOT PLUG IN AT THIS TIME.
4. NOTE: Wrap all threaded plumbing connections with Teflon tape prior to
assembly. Do not use Teflon tape on the chamber end caps.
5. The unit must be installed vertically with the inlet and outlet ports accessible.
The lamp connection must be at the highest point. (End with ground terminal)
This will assure that any dripping condensation or possible leaks will not migrate
to the lamp harness or electrical connections. The water inlet port must be the
lowest port. This allows air to escape the housing, and ensures proper flow
past the UV lamp and sensor. (Fig. 2)
6. Install the flow restrictor to the inlet port (lower port). The arrow on the restrictor
indicates the direction of the water flow. (Fig. 3 & 4) The arrow should be
pointing towards the chamber.
7. Screw the brass thermal relief valve into the SST adaptor, ensuring the O-ring
is attached to the brass valve as shown in fig 5A. Hand tighten + ¼ turn with a
wrench. Now install the SST thermal relief valve adaptor to the outlet port (upper
port) Fig. 6. Attach the 3/8” flexible tube to the barbed fitting on the valve and
run the tube to the drain.
8. Connect new plumbing to the flow restrictor (lower) and the thermal adapter
(upper). Make sure to install shutoff valves and unions before and after the unit
for servicing. Note: If installing a pre-filter, use a 5-micron filter and ensure the
direction of water flow through the filter housing is correct.
9. If a solenoid valve is going to be used, the valve can be mounted directly to the
inlet port feed line. Keep a minimum of 12” (30cm) distance from the thermal
valve if the solenoid valve has to be installed on the output port.

6
WARNING:
If soldering copper pipes, do not allow heat near plastic or nylon threads
or fittings.
10.Remove the chamber end caps. Note that the quartz sleeve has not been
factory installed. Remove it from its packaging. Use a soft non-abrasive cloth
to handle the sleeve. Wipe off any debris or fingerprints prior to installing.
Slide the quartz sleeve into the chamber until about 1/2” (1.25 cm) protrudes
from the either end. Slide one of the black supplied O-rings over the lower end.
Next, slide one of the white gasket rings on the sleeve (Fig. 8 bottom) Screw
on the bottom end cap (Fig. 9). Do not tighten. Install the other black O-ring and
white gasket ring over the open end of the sleeve on the chamber end that has
the grounding screw attached. (Fig. 8 Top) Screw on the electrical end cap.
(Fig. 10) Turning in opposite directions, hand-tighten both end caps at the same
time. Once assembled, tighten each cap ¼ turn using a wrench or pliers, do not
over-tighten.
11.Remove the lamp from its protective packaging. Clean lamp exterior with a
clean non-abrasive cloth. Be careful not to leave fingerprints on the lamp.
Connect the 4-pin electrical connector to the pins on the UV lamp. (Fig. 11)
Insert the lamp through the opening at the end of the electrical end cap until the
electrical connection is inside the end cap.
12.Loosen the set-screw on the side of the lamp plug cover, and place the cover
over the ledge of the electrical end cap. Tighten the set-screw. (Fig. 12)
13.Remove the nut on the grounding stud and place the grounding wire (green &
yellow) onto the stud. Replace the nut and tighten. (Fig 13)
14.Remove the transmittance sensor from its packaging. Ensure the O-ring is in
place above the threads on the sensor end. Wipe the face of the sensor with a
clean non-abrasive cloth to remove any debris or fingerprints. Screw the sensor
into the middle port. Hand-tighten + ¼ turn using a wrench (Fig. 14)
15.Connect the electrical end of the sensor to the right-hand side 2 pin terminal on
the ballast chassis. (Fig. 15)
16.If the Optional solenoid is installed on the unit, connect the 3-pin electrical
connector supplied with the solenoid, to the 3-pin adapter on the right-side
middle of the UV ballast. (Fig. 15)
17.Ensure the valves on either side of the UV disinfection unit are closed. Open
the main water supply valve. Open the valve on the discharge side of the
disinfection unit. Slowly open the feed side valve (lower) on the disinfection unit.
Check for leaks. If any leaks are present, close valves and repair.
18.Connect the UV power source to a 120v receptacle. Turn on the power switch
on the side of the ballast. Wait for 5-10 seconds before the Lamp On will be
indicated. It will take additional time before the green LED indicates the lamp is
ignited with over a 40mj/cm2UV intensity, and if installed, the solenoid will open
only after the UV cm2exceeds 40mj/cm2. The current mj/cm2dosage, the Lamp

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ON/Lamp Fault and the cumulative operation hours will be displayed on the
screen.
19.Before service begins all household, plumbing lines should be
disinfected. (See PLUMBING DISINFECTION PROCEDURE BELOW).
20.Your Excelight NX UV Disinfection System is now ready for use.
PLUMBING SYSTEM DISINFECTION PROCEDURE
THE FOLLOWING DISINFECTION PROCEDURE IS GENERALLY ACCEPTED
AS BEING SUITABLE FOR THE DISINFECTION OF PLUMBING SYSTEMS
KNOWN TO BE CONTAMINATED.
IF YOU ARE UNCERTAIN ABOUT THE EFFECTIVENESS OF THIS
PROCEDURE YOU ARE ADVISED TO CONTACT YOUR LOCAL HEALTH
AUTHORITY RESPONSIBLE FOR WATER SAFETY.
During the UV disinfection process the only place disinfection takes place is within
the reactor chamber. There is no residual disinfectant capacity. Therefore, it is
necessary to chemically disinfect the plumbing system prior to the initialization of
the UV system.
1. Turn the UV system shut off valves to the closed position.
2. The disinfection of the plumbing system is most readily accomplished by
removing the 5-micron pre-filter cartridge and adding 250-500ml (1-2 cups) of a
standard 5% concentration of unscented household bleach into the empty filter
housing and re-attaching.
3. Verify that the UV system is connected to the AC power voltage and operating
properly.

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4. Turn the valves to the open position and let the water flow.
5. Open all faucets, fixtures and appliances in turn until you can easily smell
chlorine. This includes outside faucets, laundry machines, showerheads and
any device or appliance attached to the plumbing system. Close the fixtures and
let the system sit for 4 hours. Do not use or consume system water during
this process.
6. Close the valves on the UV system. Re-install the pre-filter. Open the valves
and flush all fixtures and lines thoroughly.
The introduction of a chlorine disinfectant to a hot water heater that has been
used with untreated water or water with excessive amounts of iron,
manganese or other organic materials may lead to the oxidation of these
particulates. If you feel that these conditions may apply to your installation,
a thorough flushing of the hot water tank after the disinfection should be
undertaken to eliminate the oxidized material from the system. Consider
replacing an aged hot water tank at this time.
UV POWER SOURCE (BALLAST)
The microprocessor controlled power source supplied with your Excelight NX
System has a visual alarm to indicate lamp operation/failure and a cumulative
system operation timer. The unit is available with an optional shutoff solenoid
which will activate when there is an alarm, turning off the water until the alarm is
corrected.
The LCD display shows the actual current UV dosage (AV: XX.X mj/cm2), the
cumulative operation hours (AT: XXXX) of the lamp, and Lamp status (Lamp On
or Lamp Fault).
If the actual UV intensity falls under 40mj/cm2, the unit goes into the low UV alarm
mode, a red will flash on the controller and the optional solenoid valve, if installed,
will close.
UV Power Source Initialization Sequence
1. Plug in the UV power source
2. Press the on/off button
3. The unit will turn on and the display will light.
a. Initially the display will read Lamp Fault.
b. After 3-5 seconds, this will change to Lamp ON. Additionally, the UV
dosage will start to climb and as it does the intensity LED indicator
lights will change from Red - Yellow - Green
c. The Red LED indicates the UV output is less than mj/cm2a Yellow
LED indicates the UV dosage is ranged from 40 to 50 mj/cm2, and a
Green LED indicates the UV dosage is greater than 50mj/cm2.
d. If a solenoid valve is connected to the UV power source, it will open
when the UV level reaches 40mj/cm2.
Normal Operation:
During normal operation, the Green LED is illuminated. If the unit sits for a long
period of time it is normal for the Yellow LED to illuminate as the water temperature

9
rises in the UV chamber. This should change back to Green when water is being
used.
Lamp Failure:
When the UV power source detects a lamp failure or enters the auto shut down
mode due to abnormal operating conditions, the Lamp Operation Hours timer will
freeze and “LAMP FAILURE” will show on the LCD display. The Red LED will
illuminate. If a solenoid valve is connected to the UV power source, it will close on
an alarm condition.
The system will remain in this state until a new lamp is detected. (See “Replacing
the UV Lamp and Cleaning the Quartz Sleeve” in the Operating and Maintenance
section)
NOTE:
The UV power source is designed to shut down if the AC input voltage is
outside its operating limits. When a lamp failure alarm is activated you
should unplug the unit from the AC power source, wait fifteen seconds and
then reconnect the AC power source. If the failure was due to the “Out of
Limits AC Power”, the unit will re-ignite the lamp and operate normally.
Total Running Hours:
The UV power source tracks total running hours of the UV system. The timer shows
00000 hrs on the display at the system’s initial start. The Red LED will be lit when
the timer is approaching the maximum lamp service life 9000 hours. Indicating it is
time to replace the lamp. If an optional solenoid is used on the system, it will close
when the lamp reaches 9000 hrs. It will remain closed until a new lamp has been
installed and the lamp hour timer reset.
Chamber High Temperature Valve:
When the temperature of the water in the chamber exceeds 57 ˚C (135 ˚F); the
thermal relief valve will open until the water temperature goes back to under 57 ˚C
(135 ˚F).
Solenoid Valve Output (Optional)
The UV power source can power a solenoid valve directly, which will stop the water
flow during any system malfunction. The output is 120 vac - 1 amp maximum.

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OPERATING AND MAINTENANCE
Your Excelight NX UV System is “ON” continuously during normal operation. After
periods of not using your water supply exceeding two to three days, it is
recommended to open all faucets and flush your plumbing system for one to two
minutes.
WARNING!
ULTRAVIOLET LAMP REPLACEMENT
THE ULTRAVIOLET LAMP INSIDE THE REACTOR CHAMBER WILL
OPERATE EFFECTIVELY ROUND THE CLOCK, FOR APPROXIMATELY ONE
YEAR OR 9000 HOURS. THE LAMP WILL NOT LIGHT LONGER THAN THAT,
THE UV LIGHT INTENSITY MAY FALL BELOW THE PRESCRIBED SAFETY
LEVEL. (40MJ/CM2) THEREFORE, ANNUAL LAMP REPLACEMENT IS
NECESSARY REGARDLESS OF APPARENT LAMP CONDITION.
Replacing the UV Lamp and Cleaning the Quartz Sleeve:
A reminder that the chamber will be full of water so have a bucket and towels
handy.
1. Unplug the system from the electrical outlet and turn off the water supply to the
unit. It is advisable to wait 5-15 minutes before proceeding to the next step. The
water in the chamber can heat up to 57 ˚C (135 ˚F);
2. Loosen the thumb screw on the electrical cap and carefully extract the lamp
connector from the electrical end cap assembly to just expose the top of the UV
lamp. While holding the lamp base firmly, disconnect the lamp 4-pin connector.
Gloves should be worn as the lamp base can be very hot. Be careful not to
drop the lamp into the quartz sleeve as both are easily broken.
3. Carefully slide the lamp out of the quartz sleeve and discard.
4. Use caution as the water in the chamber may still be very hot at this stage.
Loosen and remove both end caps. Place a bucket below the chamber and your
hand under the bottom of the sleeve. Using your other hand, carefully remove
the white and black rings from the top of the sleeve. Once the rings are off of
the sleeve top, the sleeve should fall into your lower hand. Carefully extract the
quartz sleeve from the reactor housing. The quartz sleeve is very fragile and
is easily chipped or broken - use extreme caution when installing or
removing it from the reactor vessel.
NOTE:
Do not touch the lamp or quartz sleeve with your fingers. Handle by the ends
only or wear soft non-abrasive gloves.
5. Clean the quartz sleeve with vinegar or a readily available scale-removing
product. (Lime Away, CLR)
6. Examine the quartz sleeve O-rings. If they look worn or cracked, replace them.
Re-install the quartz sleeve. (See replacement parts.)
7. Install new lamp by reversing the procedure described in items #2-4 above.

11
8. Once the unit is re-assembled, Open a tap downstream of the UV. Slowly open
the shutoff valves and purge the air from the system.
9. Ensure there are no leaks at the end caps before connecting the power to the
system. Correct as necessary.
10. Holding the reset button down, turn the unit power on. Continue to hold the reset
button until “LAMP ON” appears on the screen. This will reset the lamp hour
timer to “0000” hrs.
11. If the optional solenoid is being used. Open a tap downstream of the UV. Open
the post UV shut off valve (if installed). Turn the UV system on. Slowly open the
pre-UV shut off valve. Once the UV dosage reaches 40mj/cm2 the solenoid will
open. Check for leaks. If there are leaks, turn UV unit off, close the shut offs,
disconnect the power to the unit, and repair leaks.
SYSTEM REPLACEMENT PARTS
EXCELIGHT NX System Replacement Components
1
Excelight NX8 UV Lamp Standard 4-pin, 9000 hours rated
EL08NSFL
2
Excelight ELNX8 Quartz Sleeve, 532mm SOE, O-rings
included
EL08NSFQ
3
Excelight NX Ballast 115 VAC w/Grounded Plug CSA
Approved
EL08NSFB
4
Excelight Sleeve Cap
EL411C
5
Excelight Electrical Cap
EL411EC
6
Excelight NX mounting Bracket -3.5" Aluminum 2 piece
EL08NSFMB
7
Excelight NX Quartz Sleeve O-Ring Kit
EL08NSFRK
8
Excelight NX Thermal Relief Valve Brass
EL08NSFV
9
Excelight NX Thermal Relief Valve Adapter SS
EL08NSFVA
10
Excelight NX8 Flow Restrictor 8 gpm 3/4"Fpt SS
EL08NSFFR
11
Excelight NX Ultraviolet Transmittance Sensor ½”
EL08NSFTS
12
(Optional)
Excelight NX Shut Off Solenoid- 120vac ¾” FPT Normally
Closed SS
Call
Dealer

12
UV DOSAGE CHART FOR 3-LOG ORGANISM INACTIVATION
Approximate ultraviolet energy levels at 254-nanometer units wavelength required
for 99.9% destruction of various microorganisms UV energy in mWs/ cm² (1mj/cm²
= 1000 mWs/cm²):
BACTERIA
MOULD SPORE
mWs/ cm²
mWs/ cm²
Agrobacterium
tumefaciens
8,500
Aspergillus flavus
(yellowish green)
99,000
Bacillus anthracis
8,700
Aspergillus
glaucus (bluish
green)
88,000
Bacillus mrgaterium
(vegetative)
2,500
Aspergillus niger
(black)
330,000
Bacillus mrgaterium
(spore)
52,000
Mucor
ramosissimus
(white gray)
35,200
Bacillus subtillis
(vegetative)
11,000
Penicillum
digitatum (olive)
88,000
Bacillus subtillis (spore)
58,000
Penicillum
expensum (olive)
22,000
Clostridium tetani
22,000
Penicillum
roqueforti (green)
26,400
Corynebacterium
diptheriae
6,500
Rhizopus nigricans
(black)
220,000
Echerichia coli
7,000
Legionella bozimanii
3,500
Legionella dumoffii
5,500
Legionella gormanii
4,900
ALGAE
Legionella micdadel
3,100
Chlorella vulgaris
(algae)
22,000
Legionella longbeachae
2,900
Legionella pneumophila
3,800
Legionella interrogans
(infectious jaundice)
6,000
Mycobacterium
tuberculosis
10,000 PROTOZOA
Neisseria catarrhaiis
8,500
Nematode eggs
92,000
Proteus vulgaris
6,600
Paramecium
200,000
Pseudomonas
aeruginosa (laboratory
strain)
3,900

13
BACTERIA
Pseudomonas
aeruginosa
(environmental strain)
10,500
Salmonella enteritidis
7,600
VIRUS
Salmonella paratyphi
(Enteric fever)
6,100
Bacteriophage
(E. coli)
6,600
Salmonella
typhimurium
15,200
Hepatitis virus
8,000
Salmonella typhosa
(Typhoid fever)
6,000
Influenza virus
6,600
Sarcina lutea
26,400
Poliovirus
21,000
Serratia marcescens
6,200
Rotavirus
24,000
Shigella dysenteriae
(Dysentery)
4,200
Tobacco mosaic
virus
440,000
Shigella flexneri
(Dysentery)
3,400
Virus of
Infectious
Hepatitis
8,000
Staphylococcus
aureus
7,000 YEAST
Streptococcus faecalis
10,000
Baker's yeast
8,800
Streptococcus
hemolyticus
5,500
Brewer's yeast
6,600
Streptococcus lactis
8,800
Common yeast
cake
13,200
Streptococcus viridans
3,800
Saccharomyces
ellipsoideus
13,200
Vibrio cholerae
6,500
Saccharomyces
sp.
17,600
A 16mj/cm² dose is suitable for reducing non-pathogenic nuisance organisms only.
A 30mj/cm² Industry Standard Dose - This is the dosage produced by 2.5" diameter
disinfection chambers when designed using the 1966 US Department of Health UV
disinfection Policy Statement.
A 40mj/cm² dosage is now required in NSF/ANSI Standard 55.

14
UV DISINFECTION LIMITED WARRANTY
One-Year Limited Warranty for the UV Chamber
Waterite, Inc. warrants the UV chamber on the Excelight product to be free from defects in material and workmanship for a
period of one (1) year from the date of purchase. During this time, we will repair or replace, at its option, any defective
Excelight UV chamber. Please return the defective part to an Excelight dealer, who will return it to Waterite, Inc. We will
either make the necessary repairs or, if it is determined that a replacement is required, we will provide a replacement part.
We will then return the part to the dealer. This warranty does not include shipping and handling charges which will be
collected from you by the dealer. Parts repaired or replaced under this one (1) year warranty will be covered under warranty
to the end of the original one (1) year warranty period. This warranty is also subject to the conditions and limitations outlined
under the heading "General Conditions and Limitations" below.
Seven-Year Limited Pro-Rated Warranty for Structural, Hardware and Electrical Components
Waterite, Inc. warrants the structural, hardware, and electrical components to be free from defects in material and
workmanship for a period of seven (7) years pro-rated from the date of purchase. During this time, we will repair or replace,
at its option, any defective parts covered by the warranty. Please return the defective part to an Excelight dealer, who will
return it Waterite, Inc. We will either make the necessary repairs or, if it is determined that a replacement is required, we
will provide a replacement part. We will then return the part to the dealer. This warranty does not include shipping and
handling charges which will be collected from you by the dealer. Parts repaired or replaced under this seven (7) years pro-
rated warranty will be covered under warranty to the end of the original seven (7) years pro-rated warranty period. This
warranty is also subject to the conditions and limitations outlined under the heading "General Conditions and Limitations"
below.
One-Year Limited Warranty for Lamps, Sleeves and UV Sensors
Waterite, Inc. warrants original lamps, sleeves and UV sensors to be free from defects in material and workmanship for a
period of one (1) year from the date of purchase. During this time, we will repair or replace, at its option, any defective parts
covered by the warranty. The warranty period for lamps and sleeves may be verified using date codes in addition to purchase
receipts and Waterite, Inc. database of registered owners. We will advise you whether the defective item needs to be
returned to an Excelight dealer for failure analysis. Replacement lamps and sleeves provided under warranty will be sent to
your Excelight dealer. If the UV sensor experiences a problem which Waterite, Inc. confirms is covered by warranty, please
return the sensor to an Excelight dealer who will return it to us. We will either repair or replace the sensor and return the
sensor to your dealer. This warranty on lamps, sleeves and sensors does not include shipping and handling charges which
will be collected from you by the dealer. Parts replaced under this one (1) year warranty will be covered under warranty to
the end of the original one (1) year warranty period. This warranty is also subject to the conditions and limitations outlined
under the heading "General Conditions and Limitations" below.
Warranty for Replacement Lamps and Parts
Waterite, Inc. warrants replacement lamps, purchased for annual routine maintenance, and other parts purchased to repair
product components that are no longer covered by the original warranty, to be free from defects in material and workmanship
for a period of three (3) months from the date of purchase. During this time, we will repair or replace, at its option, a defective
replacement lamp or part free of charge except for shipping and handling charges. The warranty period on replacement
lamps and parts will be verified using date codes and/or purchase receipts. Waterite, Inc. will advise you whether the
defective item needs to be returned to an Excelight dealer for failure analysis. Replacement lamps and parts provided under
warranty will be sent to your Excelight dealer.
General Conditions and Limitations
None of the above warranties cover damage caused by improper use or maintenance, accidents, acts of God or minor
scratches or imperfections that do not materially impair the operation of the product. The warranties also do not cover
products that are not installed as outlined in the applicable Owner's Manual. The limited warranties described above are the
only warranties applicable to the Excelight products listed in the "Specific Warranty Coverage" section. These limited
warranties outline the exclusive remedy for all claims based on a failure of or defect in any of these products, whether the
claim is based on contract, tort (including negligence), and strict liability or otherwise. These warranties are in lieu of all
other warranties whether written, oral, implied or statutory. Without limitation, no warranty of merchantability or of fitness for
a particular purpose shall apply to any of these products. Waterite, Inc. does not assume any liability for personal injury or
property damage caused by the use or misuse of any of the above products. Waterite, Inc. shall not in any event be liable
for special, incidental, indirect or consequential damages. Waterite, Inc.’s liability shall, in all instances, be limited to repair
or replacement of the defective product or part and this liability will terminate upon expiration of the applicable warranty
period.
Pro-Rated Warranty
The pro-rated warranty as specified in this document is applicable according to following parameters:
All the warranties are 100 % valid at the time of the sale, and effective the day of the registration of the warranty. The
decrease in covered percentage occurs the day after the anniversary date of the purchase of the UV System (as long as
the warranty has been registered and valid). The prorated portion of an eligible warranty repair is based on the date that
the problem is communicated to the dealer in writing, or of the day when the UV System enters the dealer and/or Waterite,
Inc. for repairs, or the date determined by the dealer (subject to Waterite, Inc.’s approval). If during a repair started at a
higher prorated percentage, a second repair is requested or necessary and is under warranty at a lower proportion, the
lower proportion will be applicable. The fact of not having registered the warranty will not prolong in whole or in part the
warranty, the starting date of your warranty is always the date of purchase.
REGISTER YOUR PRODUCT ONLINE AT WATERITE.COM OR FILL OUT
THE INCLUDED PRE-PAID, SELF ADDRESSED POSTCARD.

15
WATERITE, INC.
Winnipeg, Manitoba
Canada
www.waterite.com