DO NOT DISASSEMBLE ANY COMPONENTS UNTIL YOU HAVE FULLY READ
THESE INSTRUCTIONS. Unit is supplied fully assembled.
Ultra violet radiation is harmful to skin & eyes.
DO NOT LOOK AT UV LAMP WHILE LAMP IS OPERATING.
Maximum operating pressure for stainless steel UV chambers is 850kPa (125
psi). If this pressure can be exceeded or if operating close to this pressure t
a suitable pressure limiting valve in the supply to the UV chamber.
WARNING: The UV Chamber operates under pressure. Under no
circumstances should the UV Chamber be disassembled unless the internal
pressure of the unit has been relieved. Failure to observe this warning will
expose persons to the possibility of personal injury and may result in damage
to the UV system or other property.
This unit is designed to treat water at ambient temperatures (5ºC to 45ºC).
Contact your dealer for details of UV systems suitable for hot water service.
The appliance is not intended for use by young children or inrm persons
without supervision.
Young children should be supervised to ensure they do not play with the appliance.
We recommend wearing clean, lint-free gloves any time the internal quartz
sleeve or lamp need to be handled.
If installing on Australian Municipal water sources, a dual check valve and back
ow prevention device must be tted prior to any lters or the UV chamber.
This appliance is not intended for use by persons (including children) with
reduced physical, sensory or mental capabilities, or lack of experience
and knowledge, unless they have been given supervision or instruction
concerning use of the appliance by a person responsible for their safety.
Please pass these instructions on to the operator of this equipment.
Congratulations on your purchase of a high quality, Davey Aquashield Centurion
Ultra Violet water treatment system. All components have been designed and
manufactured to give trouble free, reliable operation.
Model Selection
Davey Aquashield Centurion units are selected according to the maximum water or
peak ow requirement. As it is not possible to overdose on UV treatment, the unit can
be oversized for the ow.
The system incorporates pre-ltration to ensure that particulate matter does not
shield micro-organisms from the UV light. In this system water ows through a 20um
lter, followed by a 1um lter for removal of sediments and cysts.
Aquashield Centurion 50W will effectively treat a water owing at a maximum rate of
50 litres of water per minute. Suitable for a single bathroom home.
Aquashield Centurion 70W will effectively treat a water owing at a maximum rate of
70 litres of water per minute. Suitable for a two story house with two bathrooms.
3
Installation
Preparing your system
Before installing your new Aquashield Centurion, please read all instructions
carefully as failures caused by incorrect installation or operation are not
covered by the guarantee. Your Ultra Violet water treatment system is designed
to handle clean water. The system should not be used for any other purpose
without specic referral to Davey. The use of the system with ammable,
corrosive and other materials of a hazardous nature is specically excluded.
On removing your Aquashield Centurion system from its carton you should check all
components to ensure all are present and have not been damaged in transportation.
Choosing a Site
To protect your Davey Aquashield Centurion from the weather, make sure the site is
water proof, frost free and has adequate ventilation. Choose a site with a structurally
appropriate mounting position on the wall. Allow a chamber length space above the
unit for removal of the lamp and sleeve from the Sterio during servicing and 100mm
below the cartridges for maintenance.
The unit can be mounted with water ow from left to right, or right to left as
the plumbing requires. The Sterio control box may need to be moved. Allow
for drainage, to avoid damage to ooring etc. that over time may occur during
maintenance or from leaking pipe joints or seals.
Electrical Power Surge Protection
An electrical power surge or spike can travel on the supply lines and cause serious
damage to your electrical equipment. The Sterio® control box has a fuse to protect
the circuit. The fuse is not a lightning arrestor and may not protect the Sterio® if
lightning or a very powerful surge hits the unit.
If the installation is subject to electrical power surges or lightning we strongly
recommend the use of suitable additional surge protection devices on all electrical
equipment. We recommend the use of an RCD or earth leakage circuit breaker
on the power supply to your unit.
Power Connection
Connect lead to power supply designated on control box label. Do not use long
extension leads as they may cause substantial voltage drop and/or poor lamp
performance. Earth stainless steel chambers using bolt provided on the chamber.
The control box has a female power socket that can be used to power a pump. In the
event of a lamp failure, power to the pump will be shut off to ensure untreated water
is not delivered.
CAUTION: The supply cord is necessary for lamp changing. The three pin
supply plug must remain accessible after installation. If installed to xed
wiring without the plug a two pole switch must be tted and its ON and OFF
positions shall be marked.
4
Mounting, Plumbing and Start-up
The unit has 25mm BSP plumbing connections.
The inward side has a 25mm female connector and requires male plumbing.
The outward side has a connector that requires either 25mm female plumbing OR
20mm male plumbing.
– Use the mounting template to mark the position of holes required for mounting. Fix
screws to the wall that will allow the Aquashield Centurion to be mounted using the
key-holes in the back of the unit. Ensure there is more than 100mm space below
the lters and 700mm above the unit for maintenance. Water must ow through
the white lters before going through the Sterio unit.
– Mount the Aquashield Centurion on the wall then tighten the screws to hold it rmly.
– Attach the yellow control box to the front of the unit in front of the Sterio by
hooking on to the 2 pre-mounted screws and then tighten them.
– Remove the 2 small screws in the top of the UV endcap.
– Install the Sterio lamp. The lamp is shipped in a tube in the top of the box.
Carefully unwrap the lamp and slide it into the pre-tted quartz sleeve through the
top of the endcap. Connect the lamp connection plugs and push them inside the
tube above the lamp. Line up the top of the endcap and replace the 2 screws.
– Connect the yellow and green earth lead to one of the 4 chamber mounting
screws. Remove the screw to hook it in place properly and re-ret the screw.
– Plumb the pipework into and out of the unit. Do not turn the water on yet.
– Turn on the power to the Sterio and allow two minutes for the UV lamp to reach
full intensity.
– After two minutes, allow water to ow through the unit lters and UV chamber by
turning on a supply tap and a tap downstream.
– Check for leaks.
pressure relief valves
20μm
lter
1μm lter
5
earth lead
end cap
Sterio
Sterio
drain plug
®
control box
®
chamber
Maintenance
Cleaning the quartz sleeve – 3 monthly
(or more often if used with hard water).
If dirt is allowed to build up on the quartz sleeve it will impair the UV output. The
quartz sleeve should be removed after one month and inspected for deposits.
– Turn off water supply to the inlet of the Aquashield Centurion system.
– Disconnect power by unplugging the cordset from the power outlet.
– Depressurise the system and drain the UV chamber by removing the drain plug.
Remember to put the plug back on when the chamber is empty.
– Unscrew the earth connection.
– Unscrew the 2 small screws holding the endcap on.
– This will expose the wiring for the lamp. Disconnect the lamp and remove it
straight up. Only handle the lamp by the ceramic-coated ends. Place it on a clean
surface where it is safe.
– Unscrew the endcap and lift it slightly to reveal the quartz sleeve. The endcap may
be held on to the sleeve by the o-ring. Gently remove the endcap from the sleeve.
– Lift the quartz sleeve out of the chamber by pulling it straight up. Try to handle the
quartz sleeve by holding it by the top 2cm. Try not to handle the quartz sleeve as
ngerprints can lead to dirt or grease shadows and a loss of efciency.
– Use a soft cloth to wipe the quartz sleeve with a solution of CLR (Calcium Lime
and Rust remover) clean.
– Wipe the quartz sleeve with a damp cloth to remove CLR residue.
– Reinsert the sleeve to the chamber and ret the o-ring to the top of it. Place the
pressure ring inside the endcap and hold with your index nger through the central
hole. Screw the endcap in to place so that it is nger tight. Do not overtighten as it
can damage the quartz sleeve.
– Reinsert the lamp and reconnect the wiring. Push the cords into the top of the
quartz sleeve so that the 2 small screws can be inserted.
– Connect the earth wire.
– Ret the drain plug.
– Plug in the power and turn on. Allow the lamp to run for 2 minutes, turn the water on.
– If alarm sounds when the power is switched on, turn power off for ve minutes to
allow for internal reset of the power supply.
– Check for leaks.
6
Replacing the UV lamp – Yearly
Carefully unwrap the replacement lamp. The packaging can be reused to return your
old lamp to your place of purchase for recycling. Do not break the old lamp and do
not dispose of it in general waste.
– Disconnect power by unplugging the cord set.
– Depressurise the system and drain the UV chamber by removing the drain plug.
Remember to put the plug back on when the chamber is empty.
– Turn off water supply to the inlet of the Sterio.
– Unscrew the earth connection
– Unscrew the 2 small screws holding the endcap on.
– This will expose the wiring for the lamp. Disconnect the lamp and remove it
straight up. Only handle the lamp by the ceramic-coated ends.
– Insert the new lamp and reconnect the wiring. Push the cords into the top of the
quartz sleeve so that the 2 small screws can be inserted.
– Connect the earth wire.
– Plug in the power and turn on. Allow the lamp to run for 2 minutes, turn the water on.
– Securely wrap the used lamp in the packaging and return it to your place of
purchase for return to Davey Water Products and recycling.
– If alarm sounds, turn power off for 5 minutes to allow internal reset of the power
supply.
Sediment Cartridge Filter Life
Once the housing is properly installed, a reduction in ow/pressure (to such an extent
as to cause inconvenience) will indicate when the cartridge is becoming clogged and
needs replacing or cleaning. Sediment cartridges should be replaced or cleaned and
sanitised when the water ow has been noticeably reduced or after 3-6 months whichever comes rst (this is for hygiene reasons).
NOTE: Actual ltration/purication life of cartridge can vary with the condition
of incoming water.
7
Changing the Filter Cartridge
1. Turn off the water ow to the cartridges at the valve, tank or tap.
2. Release the pressure by opening a tap downstream, or use the pressure relief
valve that is available in the lid of the lter housings.
3. Unscrew the bottom housing from the lid* and remove the used cartridge and
discard or wash. The inside of the lter housing and the lid should be checked for
cleanliness - they will usually need to be cleaned or sanitised - use hot water and
dishwashing liquid, thoroughly scrub all surfaces and then rinse.
4. Check that the o-ring is in position in the top of the housing base, lubricate with
a coating of white petroleum jelly (Vaseline), place the o-ring into the groove and
with two ngers wipe the o-ring down into the groove. Do not wipe the o-ring clean
of lubricant after it has been properly seated in the groove because the lubricant
prevents “crawling” of the o-ring during the tightening of the lid and thus prevents
water leaks.
5. Screw the housing onto the lid and hand tighten. Open the tap downstream of the
lter and then open the inlet valve.
*The cartridge spanner supplied with the unit may help if the housing is tight.
CAUTION: The housing must be protected against freezing. Failure to do so
may result in cracking of the housing and water leakage.
WARNING: CAREFULLY AND GENTLY TIGHTEN WITH HOUSING SPANNER
as the bowl should only be tightened enough to avoid water leaking during
operation.
WARNING: If the water system is not going to be used for extended periods,
the cartridge should be removed from the housing and replaced with a new or
cleaned cartridge when the system is used again.
IMPORTANT: When opening the lter housing to install or change the
cartridge (element) it is common for the o-ring seal to lift out of the groove
and, at times, it may even stick to the cap.
CAUTION WHEN INSTALLING
1. This is a plastic product with a female thread. If you cross-thread a male
tting, and/or you over pack with sealing tape, you could do permanent
damage.
2. If you use a tapered thread male tting do not over tighten.
3. No warranty claims will be considered for damage due to incorrect installation.
Your new Aquashield Centurion system incorporates a Sterio® includes a lamp
failure system design feature that enables you to be warned of a lamp failure by :-
1. A lamp failure LED.
2. An audible alarm.
In addition when the alarm “beeps” on and off, the lamp is due to be changed so that
effective treatment is maintained.
8
Replacement Part Numbers
50Lpm70Lpm
LampGPH550N2/WGPH550N2/W
Quartz SleeveTT600TT600
Pressure ring (between endcap and sleeve) S113S113
O-RingS24X3N70S24X3N70
20um lter cartridge20PP10J20PP20J
1um lter cartridge1PS10J1PS20J
Cartridge housingW10J25MMW20J25MM
WARNING
Ultra-Violet radiation is harmful to skin and eyes.
EYES: Switch off UV system before removing covers. If working within line of sight of UV light,
ensure that a suitable full face plastic facemask is worn.
SKIN: It is recommended that exposed skin is covered to prevent sunburn, possibly severe, if
working within line of sight of operating UV system.
Note: exposure to UV light results in symptoms that develop slowly, the exposure cannot be felt at
the time.
SYMPTOMS
EYES: Mild exposure - irritation developing several hours later. Severe exposure - sore, red eyes,
skin sloughing (peeling), weeping area, sever sunburn symptoms.
FIRST AID
EYES: In mild cases, if in doubt seek medical attention. Severe cases cover eyes with gauze or
clean cloth, seek medical attention.
SKIN: In mild cases removal from exposure may be sufcient. If in doubt seek medical attention.
In severe cases, cover affected area loosely with a clean bandage or cloth. Seek medical
attention. Do not apply fat, butter or oil to skin.
The above notes are intended to highlight the dangers of exposure to UV radiation.
With sensible precautions any hazard can be eliminated.
Germicidal UV cannot pass through clothing or other opaque materials or clear
materials such as plastics or even window glass.
WARNING - Do not use hydrocarbon based or hydrocarbon propelled sprays
around the electrical components of this unit.
During service DO NOT use lubricants or sealants of any type on the Sterio
o-ring. Keep the inside of the quartz sleeve dry and clean.
9
After Sales Service
For professional after sales service or repair, contact your Davey Dealer.
Recommendations for maintaining good health
UV sterilising systems are designed to deactivate bacteria by rearranging the
bacterial DNA and removing the ability of the bacteria to reproduce.
UV treatment is most effective on clear, particle free water. Therefore we include
20um and 1um pre-ltration prior to the UV chamber. The lters should be checked,
cleaned and replaced regularly.
As the bacteria in the chamber require contact time with the lamp, water ow through
the unit should not exceed the maximum ow ability. If this is a risk, a ow limiting
valve could be added to the system. Please consult your plumber.
The UV system is only effective when the lamp has power. In the case of a power
failure, water should not be used through the system.
Over time the UV lamp output will be reduced. We recommend replacing the UV
lamp every 12 months so that your water is treated by high intensity UV. (Please see
page 7).
The internal quartz sleeve needs to be cleaned regularly so that grime on the sleeve
does not block the UV lamp. This should be done at least 4 times per year and more
often if your water is prone to scaling. (Please see page 6).
10
Davey® Repair or Replacement Guarantee
In the unlikely event in Australia or New Zealand that this Davey product develops any malfunction within
warranty periods beginning from the date of original purchase due to faulty materials or manufacture, Davey
will at our option repair or replace it for you free of charge, subject to the conditions below.
Davey Guarantee Period
Sterio Lamp - Six months Sterio Controller - One Year
Should you experience any difculties with your Davey product, we suggest in the rst instance that you
contact the Davey Dealer from which you purchased the Davey product. Alternatively you can phone our
Customer Service line on 1300 367 866 in Australia, or 0800 654 333 in New Zealand, or send a written letter
to Davey at the address listed below. On receipt of your claim, Davey will seek to resolve your difculties
or, if the product is faulty or defective, advise you on how to have your Davey product repaired, obtain a
replacement or a refund.
Your Davey Guarantee naturally does not cover normal wear or tear, replacement of product consumables
(i.e. mechanical seals, bearings or capacitors), loss or damage resulting from misuse or negligent handling,
improper use for which the product was not designed or advertised, failure to properly follow the provided
installation and operating instructions, failure to carry out maintenance, corrosive or abrasive water or other
liquid, lightning or high voltage spikes, or unauthorized persons attempting repairs. Where applicable, your
Davey product must only be connected to the voltage shown on the nameplate.
Your Davey Guarantee does not cover freight or any other costs incurred in making a claim. Please retain
your receipt as proof of purchase; you MUST provide evidence of the date of original purchase when
claiming under the Davey Guarantee.
Davey shall not be liable for any loss of prots or any consequential, indirect or special loss, damage or
injury of any kind whatsoever arising directly or indirectly from Davey products. This limitation does not apply
to any liability of Davey for failure to comply with a consumer guarantee applicable to your Davey product
under the Australian or New Zealand legislation and does not affect any rights or remedies that may be
available to you under the Australian or New Zealand Consumer Legislation.
In Australia, you are entitled to a replacement or refund for a major failure and for compensation for any other
reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the
goods fail to be of acceptable quality and the failure does not amount to a major failure.
Should your Davey product require repair or service after the guarantee period; contact your nearest Davey
Dealer or phone the Davey Customer Service Centre on the number listed below.
For a complete list of Davey Dealers visit our website (davey.com.au) or call: