Sterilight Ozone S2ROZAP Quick start guide

INSTALLATION INSTRUCTIONS
AND
OWNERS MANUAL P/N 520025

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ULTRAVIOLET OZONE GENERATORS
INSTALLATION INSTRUCTIONS AND OWNERS MANUAL
( Before proceeding with the installation of this equipment, please read this manual carefully and retain it for future reference)
INTRODUCTION
Ozone is nature's natural purifier. This naturally occurring product is produced during lightning and
electrical storms as well as when solar ultraviolet rays strike the earth's upper atmosphere. It is this Ozone
layer which protects us from the harmful UV radiation produced by the sun.
Ozone is generated when an oxygen molecule (02) is exposed to high energy. Ultraviolet (UV) light and is
converted to an Ozone (03) molecule. This extra oxygen atom is what makes Ozone a highly "energetic"
oxidizer.
Ozone'seffects come when this "extra" oxygen atom isreleasedandallowed tooxidizeand destroybacteria,
viruses, as well as other organic matter in the pool or spa. Ozone also breaks down harmful chemicals an
acts as a flocculent to coagulate various insoluble particles which can then be easily removed by the
filtration system.
Ozone's powerful oxidizing abilities work in conjunction withyour sanitizing agentto provide a healthier,
cleaner bathing experience. As an oxidizer, Ozone eliminates objectionable chemical by-products such as
chloramine or bromamine -- the result, a totally environmentally safe product.
FEATURES
$All models include an audible alarm and an LED indicator light to indicate that the lamp is operating.
The audible alarm will sound if the lamp fails to start.
$The UV lamp is contained inside of a sealed stainless steel Ozone Generator cell which protects the
electrical components and outer case from the oxidizing effects of Ozone.
$185nm ultraviolet lamps can be replaced or cleaned bysimplyremoving the aluminum nuts from the ends
of the stainless steel Ozone generating cell, removing the old lamp and re-installingor installing a new UV
lamp.
INSTALLING YOUR OZONE GENERATOR
NOTE $Both models S2ROZAP and S2Q-OZ will generate sufficient Ozone for most spa and hot
tub applications subject to the wide variations that occur depending on operating conditions,
chemical control and bather load.
$Model S8ROZAP and S8Q-OZ are sufficient for smaller pools and can be used in parallel
for larger applications. Sizing will also be dependant on a wide range of variations including

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operating conditions, chemical control and bather load.
$Choose a location for your generator that is accessible to an approved electrical outlet and
where the indicator light is visible (if your unit comes equipped with one). Note : Electrical
outlets within 10 feet of the tub must have ground fault protection.
$Leave enough space to allow for removal of the cover and the stainless steel cell for UV
lamp maintenance.
$As UV lamps can be damaged in shipping and handling, check the lamp before installing
your Ozone generator by plugging it into an electrical outlet for a moment. A bluish light
should be evident at the ports and the LED indictor light on the S2ROZA and S8ROZA
should also glow. WARNING - DO NOT LOOK DIRECTLY INTO THE PORTS.
ULTRAVIOLET LIGHT EMITTED BY THE LAMP CAN CAUSE BURNS TO
UNPROTECTED EYES.
Your OZONE GENERATOR should be located in a dry area that is accessible for servicing and two feet
above the water level. If the unit can not be mounted at least two feet above the water level, the tubing
connecting the generator to the inlet of the spa or pool must either be installed with a loop to raise it two feet
above the water level or be fitted with an approved check valve (or both) for Ozone service to prevent water
back flow into the generator. When using an optional venturi or venturisystem toprovideincreasedairflow,
a check valve must be used to prevent back flow into the generator in case the outlet line is blocked.
Select a location two feet above the water level and with access to a properlygrounded electrical outlet.The
unit can be mounted verticallyor horizontally with the connection ports facing down. Mount the cabinet to
the wall with the mounting holes in the back of the cabinet and threesize 10 screws. If mountingthe unit to
drywall, use a plug or an expansion butterfly nut to secure the unit.
Some typical installation procedures are described in the following pages. More detailed information is
provided in the attached diagrams.
INSTALLATION
1. PRESSURE DIFFERENTIAL SYSTEM for OZONE EDUCTION SYSTEM #OE-001
Recommended for most spa installations. This simple pre-assembled system utilizes a combination of
pressure differential, venturi and the spas existing air induction piping, offering the most efficient and
economical Ozone mixing and distribution, virtuallyeliminating anygas off. You'll note fromthe attached
illustration that water from the high pressure side of the pumpisforcedthrough an aspiratoror venturi which
causes air suction. This air suction pulls Ozone in from the Ozone Generator therebymixing theOzone and
water at the aspirator where injection takes place. Then the mixed Ozone and water travels through a 3/8"
tube to the spas air induction line. On the way back to the air line the Ozone and water is retained in a loop
in the 3/8" line to cause thorough mixing and Ozone absorption in the water prior to injection into the spas
air line. Reduce the water level until it is below the air induction line (if necessary) to avoid water leakage
when making the connections. NOTE: Ozone may cause rubber seals in the system to degenerate. These
parts should be replaced with "Viton" or other material resistant to Ozone. Your spa may have come
equipped with a 1/4" NPT threaded inlet on the air line, if not you may be required to drill and tap a 1/4"

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NPT hole to install the 1/4"NPT to barbed adaptor that comes with the OE-001 kit. The location for the
Ozone injection point will be decided bywhere you choose to place the adapter. Normally the placement of
the adaptor will allow the Ozone to flow through only one side of the tub. If possible, choose the air line
with the most attached jets to take full advantage of the injection points. If drilling, place the adaptor
downstream of the air vent controls. Your spa mayhave also come supplied with agardenhose threadedtap
on the HIGH PRESSURE SIDE of the pump, which is commonly referred to as a power drain. If your spa
has no power drain, then the optional saddle clamp must be installed on the HIGH PRESSURE side of the
pump as close to the pump as possible. If you are not sure which is the high pressure side, be sure to contact
your dealer to avoid any irreversible drilling. After you have located or installed the barbed adaptor on the
air line and the adaptor on the water line, simply hook up the eduction system as the diagram illustrates.
Make sure all the connections are sealed so no leaking will occur.
Air Line From
Ozonator
Check Valve
(CHK-OZ1)
Motor &
Pump
Assembly
Low Pressure
Line
High Pressure
Line
Power Drain
Connection
Venturi Tube
(Aspirator)
Retention
Loop 1/4” Male
Adaptor
Air Inlet
6” Length of 3/8” I.D.
PVC Tubing Adaptor
(Sli
p
Fit Over Ozonator
And Delivery Line)
After all the water connections have been made you must choose a location for your Ozonator. If you are
locating the Ozonator below the water level an approved check valve (model #CHK-O1B) must be usedthe
Ozone induction air line from the Ozonator be hooked into an approved ground fault protected electrical
supply. After the system is totallyinstalled, re-fill the tub. When tub level is correct, thoroughlyinspect the
system for leaks. If your spa was equipped with a power drain, remember you must turn on the tap to allow
water to pump through the system. If no leaks are found turn the power on to the tub andopenthejetthat has
the Ozonated water connected to it and re-check for leaks. When the unit ison highspeed you shouldbeable
to detect suction at the inlet on the Ozonator. If it can't be detected, take the air line off at the venturi to
check the air draw into the venturi at high speed. At low speed the air draw will be dramatically reduced,

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don't be alarmed, there should only be a slight air draw at low speed. The retention loop has been
incorporated to keep the Ozone in contact with the water prior to induction into the spa. This will cause
excellent Ozone absorption and mixing. If you have a dominantOzonesmell onhigh speedyou simplyneed
to increase the number of loops with an optional connector until the Ozone smell is almost eliminated. You
should smell a slight hint of Ozone at the jet that is introducing the Ozone. If youhave nosmell at all,simply
cut the loop number back until you do smell a hint of Ozone at high speed. Ozone has a distinct fresh or
pungent odour.
2. SPA AIR INDUCTIONSYSTEMINSTALLATION:BASICINSTALLATIONKIT#INKIT-OZ1
(i) Drain the tub or spa until the water level is below the air induction line connection point so the pipe can
be cut to make the necessary connections. NOTE : Ozone may cause rubber seals in the system to
degenerate. These parts should be replaced with Kynar, Viton or other material resistant to Ozone.
Air Line From
Ozonator
Check Valve
(CHK-OZ1)
1/4” Male
Adaptor
Drill & Tap To
Suit 1/4” NPT
Air Inlet
6” Length of 3/8” I.D.
PVC Tubing Adaptor
(Sli
p
Fit Over Ozonator
And Delivery Line)
(ii) Use 3/8" inside diameter tubing for connecting the Ozone Generator to the air induction lines. This
connection can be made bycutting the existing induction line and installing aplastic teefittingand3/8"hose
adaptor. Connect the other end of the tubing to the Ozone generator port and secure tight with a hose clamp
(the clamp should be tightened with pliers). A check valve in the connecting tubing, located at the tee is
recommended for all installations. The generator or a loop of the hose should be at least two feet above the
normal water level, otherwise an approved check valve must be installed in the tubing between the spa and
the generator.
(iii) The air is drawn through the generator by the suction in the air induction pipe because of the venturi
jets. Make certain the inlet to the generator is clear. After installation is complete, refill the tub and start up

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the pump. Check the suction by holding a small piece of paper (about 1" square) to the air inlet port of the
generator. There should be enough suction to hold the paper in place. Don't forget to remove the paper! The
amount of Ozone introduced into the spa can be controlled byadjusting the air controlvalve. Theaircontrol
valves should normally be closed on low speed operation of the spa and open on high speed.
3. WATER VENTURI SYSTEM for POOLS and SOME LARGE SPAS
A venturi draws air by forcing a set amount (or flow rate) of water through a pipe that gradually reduces in
size and at the smallest point in the pipe the venturi action (or air suction) is created. A venturi or venturi
system (see diagrams) must be selected to match the pump flow. Install the venturi on the discharge side of
the pump and after the filter. On large systems, the venturi maycreate an unacceptable pressure drop, if so, a
by-pass ball valve or spring loaded check valve can be installed. To increase the draw with a venturi system
that incorporates a ball valve, simply adjust, or slowly close the ball valve. This will create a back pressure
in the bottom pipe (see diagram) which will force water up to and through the venturi, thereby increasing
draw (or suction). A spring loaded by-pass check valve is suggested for two speed pump systems (usually
used on spas) to provide an automatic flow adjustment. The optional one inch venturi has aflowratingof20
gpm and the 1 2inch venturi is rated for 60 gpm with a 5 psi pressure drop. A ball valve by-pass is required
for flows over the rated flow of the venturi. A ball valve by-pass venturi system (see diagram) is
recommended for any pool installation, to offer a full range of adjustability.

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FLOW
water line from pump
heater and filter
return water line
to pool ball valve
(please note open & closed
positions for handle assembly)
hose clamp
(HC-001)
3/8” tube coming
from ozone generator
venturi
check valve
(CHK-OZ18)
open position
closed position
Parts List
venturi assembly (with valve)
check valve (CHK-OZ18)
hose clamp (HC-001)
12’ of 3/8” ID hose (HO-375)
VENT-CHF
O
3
FLOW
water line from
p
um
p
heater and filter
return water line
to pool venturi
check valve
(CHK-OZ18)
Parts List
venturi only (VENT 1 1/2)
check valve (CHK-OZ18)
VENT-C
3/8” tube coming
from ozone generator
O
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4. AIR COMPRESSOR for SPECIAL INSTALLATIONS
A small air compressor mayalso be used to provide air flow through the Ozone Generator. The compressor
pressure must be sized to overcome the pressure drop of the connecting tube and the static pressure from the
depth of water in the spa. The compressor is connected to the Ozone inlet port and the Ozone outlet is
connected to the water distribution piping at the spa or pool. In order to fit the tubing on the inlet port, the
protective shield may need to be removed. Install a check valve between the Ozone Generator and pipe
connections. The Ozone is distributed into the pool or spa by the circulation of the water. After installation
is complete be sure to follow the next steps prior to operation. Plug in the electrical connectionand check to
see that the blue light from the UV lamp is visible. The LED indicator light should be glowing brightly. If
the light does not come on or continue to glow steadily, remove the end screws, open the cover and check
that there is a good electrical connection at each end of the UV lamp. When operating, a blue light will be
visible at the connection ports. NEVER LOOK DIRECTLY INTO THE PORTS
OPERATING AND MAINTENANCE INSTRUCTIONS
A. Regularly inspect your Ozone Generator unit to ensure that the lamp is still working.

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B.The ultraviolet output of the UV lamp graduallyreduces with usage. However,there isawidevariationin
the actual amount of Ozone required because of differences in the volumeofwater and thenumberof people
using the hot tub or spa. The condition of the water is a reasonable indicator to tell when a new lamp or
maintenance is needed. A large increase in the amount of treatment chemical or achangein the watercolour
or scum on the inside of the tub are all indications that more Ozone is required. As dust on thelamp willalso
reduce output, the lamp should be cleaned first to verifythat the lamp needs to be replaced. (see para.D for
cleaning instructions). As a general guide, lamp replacement is suggested after 12 to 18 months of
continuous operation.
C. The Ozone Generator should be on whenever the pump is operating. Ozone generation requires a
continuous air supplythrough the cell. The air suction can be produced in various ways, as discussed earlier
in the installation section. Although the UV lamp maybe left on without thepump operating,therewould be
no appreciable Ozone generation since there would be no air flow in the cell. If the pump is to be off for an
extended period of time, the Ozone Generator should also be shut off. Unlike filters where the amount of
water passed through determines the life expectancy, UV Ozone Generators are effected by the number of
hours the lamp burns. Frequent switching off and on can also reduce lamp and ballast life. If your spa
experiences heavy bather loads the Ozonator jets should be left on high speed for 2 to 5 minutes after use
with the spa cover closed, this will increase the amount of injected Ozone therebyreducingtheorganicload.
However, if the water gets very cloudy the organic load may be past the Ozonators threshold and you may
need to shock after use with a concentrated chemical. If a concentrated shock is even necessary, one
treatment will normally suffice.
D. To remove or replace the UV lamp, FIRST DISCONNECT THE OZONE GENERATOR FROM
THE ELECTRICAL SUPPLY. Remove the end cover screws and the cover. Lift the stainless steel cell
from the holder clip beside the electrical box and twist the cell to remove it from the other holder clip. This
sequence is reversed when replacing the cell. Gently remove the retainer nuts from each end of the stainless
steel cell and remove the lamp. Carefullyclean the lamp witha clean,lint freewiperdampened with vinegar.
New lamps should also be wiped clean to remove dust. Do not handle the UV lamp with barehands toavoid
marking the quartz glass. Gently insert the lamp into the cell and slide the aluminum nut with the O-ring
over one end of the lamp. Wet the O-ring first to help slide it over the lamp end. Turn the aluminum nut on
to the threaded end of the cell and hand tighten. Next slide the other aluminum nut over the exposed end of
the cell (wet the O-ring first) and turn on to the threaded end. Do not over tighten the nuts toavoid damaging
the lamp ends. Adjust the lamp position so it is evenly spaced at both ends.
Next, push the lamp connectors on to the lamp end pins and fit the cell back into the bottom cell holder clip
first. Plug in the electrical cord to check for proper operation. A blue light will be evidentat the portsandthe
indicator light on should glow. DO NOT LOOK DIRECTLY INTO THE PORTS. Use the same
procedure when removing the UV lamp for cleaning. Replace the coverandinstallthe cover holding screws.
E. Water Chemistry
Although your Ozone Generator is a very effectiveoxidizer, properwaterchemistrymust still be maintained.
For optimum results drain spa and start with fresh water prior to the installation of the Ozone Generator.

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$TOTAL ALKALINITY should be maintained between 80-120 ppm. TA is an important factor in
stabilizing pH and should therefore be adjusted prior to adjusting pH.
$pHof 7.4 - 7.6 should be maintained in the pool/spa water. Ozone is pH neutral and will not cause thepH
value of the water to fluctuate; however bather load probably has the most effect on the pH balance,
therefore pH should be checked regularly. If pH needs to be adjusted, it is recommended to adjustit slowly.
Contact your dealer for their recommendations.
$CALCIUM HARDNESS in the range of 200 -250 ppm is ideal and in most cases will be determined by
local water conditions.
F. Since Ozone is such apowerful oxidizer, proper maintenance of thefiltration equipment is essential. The
filter cartridges will become "dirty" much more rapidly than the same system operating without an Ozone
Generator. It is a good idea to have an extra filter cartridge on hand so that one may thoroughly clean the
"dirty" cartridge. We recommend using TSP (trisodium phosphate) in conjunction with cold water and
allowing the cartridge to soak overnight. Thoroughly rinse the cartridge and reinstall so that all seals or
gaskets are seated properly.
G. To monitor the lamp life, record the date for each lamp replacement.
TROUBLE SHOOTING GUIDE
MECHANICAL
Problem Cause Solution
1. Ozone lamp is not lit 1. No power to unit 1. Check power source.
2. Defective lamp. 2. Replace lamp.
3. Improper lamp connection 3. Check lamp connection.
4. Defective ballast. 4. Repair ballast.
2. Ozone lamp is lit, no 1. Incorrect venturi alignment. 1. Make sure water flows in the
evidence of ozone in the direction of the arrow located on
pool/spa venturi.
2. Defective/plugged venturi. 2. Replace or clear debris from
venturi.
3. Cracked/plugged tubing. 3. Repair/replace any defective
or clogged tubing.

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4. Incorrect check valve positioning. 4. Check to see if ozone flows
away from generator.
5. No suction to unit. 5a. Repair/replace check valve,
tubing, or venturi. 5b. Clean/replace filter cartridge.
6. Lamp is beyond its effective life. 6. Replace lamp.
7. Ozone lamp is dirty. 7. Clean ozone lamp.
3. Strong ozone smell in 1. Retaining nuts not sealing 1. Check o-ring for debris or
immediate area of generator. properly. abrasions and re-install.
2. Incorrect tubing connection on 2. Ensure proper connection is
outlet side of generator. made.
4. Alarm is sounding 1. Ozone lamp is spent. 1. Replace lamp.
(audible alarm units only) 2. Improper lamp connections. 2. Ensure proper power
connection is made.
3. Defective ballast or circuit board. 3. Please contact authorized
dealer.
WATER CHEMISTRY
5. Cloudy water. 1. Total dissolved solids level is too 1. Clean or replace filter high.
cartridges.
2. Incorrect pH levels. 2. Adjust pH to between 7.4-
7.6
6. "Green" water. 1. Excessive algae build-up. 1. Shock water.
2. High metal content. 2. Replace water.
REPLACEMENT PARTS
S2ROZAP, S2ROZAP/2
S2ROL................................... UV lamp
BA-ICE-3F............................electronic ballast (100-250V./50-60Hz. switchable)
PG-010 .................................. rubber washer
RN-001..................................aluminum gland nut
OR-315..................................o-ring
S8ROZAP, S8ROZAP/2
S8ROL-4P.............................UV lamp
BA-ICE-3F............................electronic ballast (100-250V./50-60Hz. switchable)
PG-010 .................................. rubber washer
RN-001..................................aluminum gland nut
OR-315..................................o-ring
S2Q-OZ, S2Q-OZ/2
S415ROL............................... UV lamp

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BA-ICE-11F..........................electronic ballast (100-130V./50-60Hz.)
BA-ICE-12F..........................electronic ballast (200-250V./50-60Hz.)
PG-010 .................................. rubber washer
RN-001..................................aluminum gland nut
OR-315..................................o-ring
S8Q-OZ, S8Q-OZ/2
S8ROL-4P.............................UV lamp
BA-ICE-11F..........................electronic ballast (100-130V./50-60Hz.)
BA-ICE-12F..........................electronic ballast (200-250V./50-60Hz.)
PG-010 .................................. rubber washer
RN-001..................................aluminum gland nut
OR-315..................................o-ring
MANUFACTURERS WARRANTY
The Manufacturer herein called the "warrantor", warrantsthe UV Ozone Generatorto befreefrom defects in
material and workmanship for a period of one (1) year from the date of purchase bytheoriginal owner.Ifthe
ozone generator is defective due solelyto faultymaterials or workmanship, and the consumerso notifies the
warrantor in writing, the warrantor will at its option and expense, either repair or replace such units subject
to the following conditions. No warranties are, or have been made bythe warrantorwith respect totheozone
generators other than those expressly included in this one year warranty.
1. This warranty does not apply to anyozone generators which have been altered or repaired byanyperson
other than the warrantor or bya person authorized by the warrantor, nor to anyozone generators which have
damaged by misuse, neglect or accidents.
2. Warrantor shall not be liable for any incidental or consequential damages.
3.This warranty excludes the cost of labour in removingor re-installing theozonegenerator andapplies only
to an ozone generator when returned to the warrantor at the consumer's sole expense.

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ENVIRONMENTAL INC
425 Clair Road West, P.O. Box 1719
Guelph, Ontario, Canada
N1H 7X4
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
October 1999 ozman-e.doc