Davey aquashield centurion ASC50, aquashield centurion ASC70 Installation And Operating Instructions Manual

Installation and

Operating Instructions

Wall mounted models ASC50 & ASC70

Please pass these instructions on to the operator of this equipment.

DO NOT DISASSEMBLE ANY COMPONENTS UNTIL YOU HAVE FULLY READ
THESE INSTRUCTIONS. Unit is supplied fully assembled.

Ultra violet radiation is harmful to skin and eyes.
DO NOT LOOK AT UV LAMP WHILE LAMP IS OPERATING.

Minimum operating pressure is 0kPa. Installation on a ooded suction is
recommended. Installation under vacuum is not advised, any damage to
persons or associated equipment will not be covered under this guarantee.

Maximum operating pressure for stainless steel UV chambers is 860kPa (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 inrm 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.

If any electrical supply cord is damaged, it must be replaced by the manufacturer,
its service agent or similarly qualied persons in order to avoid a hazard.

Aquashield®Centurion

2

Contents

Introduction .................................................................................................................3

Model Selection ..........................................................................................................3

Installation ...................................................................................................................4

Preparing your system .........................................................................................4

Choosing a Site .....................................................................................................4

Electrical Power Surge Protection ......................................................................4

Power Connection ................................................................................................4

Mounting, Plumbing and Start-Up .......................................................................5

LED Indicators ............................................................................................................6

Alarms .........................................................................................................................6

Maintenance ................................................................................................................7

Cleaning the quartz sleeve...................................................................................7

Changing the Filter Cartridge ..............................................................................8

Replacing the UV lamp .........................................................................................9

Sediment Cartridge Filter Life ..............................................................................9

Replacement Part Numbers.....................................................................................10

WARNING: Ultra Violet Radiation ............................................................................10

Guarantee ..................................................................................................................12

3

Introduction

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.

Aquashield Centurion 70W will effectively treat a water owing at a maximum rate of
70 litres of water per minute.

Your new Aquashield Centurion system incorporates a Sterio, which includes a lamp

failure system 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.

Flashing of the red LED indicates that the lamp countdown timer is operating.

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 sufcient exposure (contact time) with the
lamp, water ow through the unit should not exceed the maximum ow specied.
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.

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.

4

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 specic referral to Davey. The use of the system with ammable,
corrosive and other materials of a hazardous nature is specically 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 Sterio 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 Sterio 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 Sterio control box has a fuse to protect
the circuit. The fuse is not a lightning arrestor and may not protect the Sterio 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. The stainless steel chamber is connected to earth as supplied and this
connection must always be used during operation.

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.

Ensure flow rate of the pump does not exceed rated flow of the UV
system or maximum rated current draw of 5.7A.

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.