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DISC FILTERS Technical Manual Manifolds Manufactured and assembled in Australia by a 100% Australian Owned Company - G.J. Dix & Sons Pty Ltd. Filter Units Manufactured in Spain by AZUD. DIX AZUD Helix Automatic

New Dix Filter cover2...DIX-AZUD Helix Automatic Filters are constructed in a modular format containing multiples of either 2” or 3” filters. The 2” models range from two to

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Page 1: New Dix Filter cover2...DIX-AZUD Helix Automatic Filters are constructed in a modular format containing multiples of either 2” or 3” filters. The 2” models range from two to

DISC FILTERS

Technical Manual

Manifolds Manufactured and assembled in Australia by a 100% Australian Owned Company - G.J. Dix & Sons Pty Ltd.

Filter Units Manufactured in Spain by AZUD.

DIX AZUD Helix Automatic

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DIX AZUD Helix Automatic Disc Filter

IMPORTANT NOTICE:

Ensure that all persons who use DIX-AZUD Helix Automatic filters read and thoroughly understand these instructions prior to operation. Should you have any questions regarding the use of the filter, please call your dealer for assistance.

CONTENTS

1. INTRODUCTION TO DIX AZUD HELIX AUTOMATIC............................ ...................................................................... 2

2. SAFETY PRECAUTIONS................................................................................................................................................... 2

3. FEATURES AND BENEFITS............................................................................................................................................. 2

4. PRINCIPLES OF OPERATION......................................................................................................................................... 2

5. SYSEM COMPONENTS .................................................................................................................................................... 4

6. OPTIONAL AIR-ASSISTED FLUSHING .......................................................................................................................... 6

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7. TECHNICAL DATA ............................................................................................................................................................ 7

8. INSTALLATION GUIDELINES........................................................................................................................................ 10

9. MAINTENANCE............................................................................................................................................................... 11

10. TROUBLE SHOOTING.................................................................................................................................................... 11

11. WARRANTY...................................................................................................................................................................... 12

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1. INTRODUCTION TO DIX AZUD HELIXAUTOMATIC DISC FILTERS

Congratulations on the purchase of your DIX-AZUD Helix Automatic Disc Filter. The DIX-AZUD Helix Automatic Disc Filters have earned a reputation for superior performance and reliability since their introduction to the harsh Australian environment in 1972.

This manual will provide you with information concerning the design, efficient operation and maintenance of your filters.

2. SAFETY PRECAUTIONS

Safety precautions are essential when any filtration equipment is involved. These precautions are necessary when using and servicing your filter. Failure to observe appropriate safety precautions may result in personal injury or product damage.

Always observe the following precautions:• Read this manual carefully. Consider the

applications, limitations and potential hazardsspecific to your filter installation.

• DIX-AZUD Helix Automatic Disc Filters are rated tooperate at a maximum pressure of 1,000kPa(145 psi). Whilst catastrophic failure of thepressure vessel is highly improbable, eyeprotection should be worn at all times when in thevicinity of pressurised filters.

• Do not tamper with any filter components whilstthe system is pressurised.

• Ensure that all unions, couplings and clamps areproperly seated and tightened prior to systempressurisation.

• Units with damaged or missing parts must not beoperated.

• Pressure relief valves of a sufficient size andvolume, set to relieve at 1,000 kPa should beinstalled upstream of the inlet and downstream ofthe outlet of the filter. This will prevent damage tothe filter housing and filter cartridge should severewater hammer occur.

• System design should ensure that back-flow isprevented. If necessary, back-flow preventiondevices should be installed upstream of the inletand downstream of the outlet to prevent back-flowor vacuum effects due to pump-stop, bursts ortopography. Installation of a check valve allows thefilters to be serviced without draining the entiresystem.

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• Ensure hat adequate eye and skin protection is wornwhen conducting manual cleaning operationsinvolving corrosive chemicals. Ensure that a sourceof fresh water is readily available and immediatelyneutralise and clean up any chemical spills.

• Serious shock or electrocution can occur whenelectricity contacts water. Never attempt to adjust orservice the Filter Controller if your hands or feet arewet or if you are standing on wet ground. Make sureoutdoor electrical outlets are weatherproof andprotected by an earth leakage device designed toprotect you from electrical shock.

• At no time may the filter’s internal/working pressureexceed 1,000kPa (145 psi). Maximum line testingpressure 2000kPa (290psi).

3. FEATURES AND BENEFITS• Exclusive helical (hydro-cyclonic) filtration action• Longer intervals between cleaning cycles reduces

backflush water losses.• Filter housings drain during cleaning cycle -

Superior cleaning effectiveness, shorter cleaningcycles and prevents disc-stick potential.

• Simple construction - Easily serviced without theneed for special tools.

• A true 2”/3” filtration surface - Small headpressure loss and low pump energy costs.

• Automatic control utilises both time and pressuredifferential to trigger cleaning - Requires very littleattention and reduces pump energy costs.

• High strength Grade 304 Stainless Steel Inlet andOutlet Manifolds - Exceptional corrosion andabrasive wear resistance providing many years ofreliable service

4. PRINCIPLES OF OPERATION

Filtration Mode

Unfiltered water enters the filter body from the inlet manifold via the 3-way backflush valve (2) and is directed through a helix element (4) that induces a high velocity hydro-cyclonic action. The resultant centrifugal force slings suspended debris particles outward away

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from the disc cartridge (3), against the inner walls of the filter cover, thus ensuring the discs remain largely clear of debris. The partially cleaned water then passes through the spring-compressed (1) filter cartridge discs, which have been tangentially etched on both surfaces with finegrooves of a predetermined depth. The grooves in mating discs are etched at opposing pitch angles to ensure that the passages formed between them constantly change in size and shape to maximise the screening effectiveness of the filter. The depth of these grooves determines the filtration mesh size. After passing inward through the disc cartridge, clean filtered water is directed out through the base of the filter body’s spring-loaded check valve and into the outlet manifold.

Automatic Backflush Mode

The Filter Controller determines when the filter requires cleaning, either after a specified time or by sensing a preset differential pressure between inlet and outlet sides of the filter.

The controller sends a signal (1) to the 3-way backflush valve that closes the inlet manifold port (2) and opens the port to the flush manifold. As the filtration chamber is now depressurised and vented, water within drains (8) into the flush manifold and the flow of water through the filter body is reversed. The check valve in the base of the filter body closes as pressurised clean water enters from the outlet manifold (3) and is directed through four backflush channels (4).

Pressure applied by the water in these channels releases the compression spring (5) freeing the discs, whilst simultaneously aiming clean water tangentially at their inner surfaces (6). These two factors combine to set the discs spinning and vibrating rapidly (7), thereby ensuring a highly effective cleaning action, clearing the filter cartridge of debris particles that are expelled through the flush manifold.

At the completion of the timed cleaning cycle, the DIX Filter Controller sends a signal (10) to the 3-way backflush valve, returning it to the normal operating position and with the assistance of the compression spring (11) the flow is reversed and the normal filtration action is restored (12).

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5. SYSTEM COMPONENTSFilter BodyThe DIX-AZUD filter body is moulded fromhigh strength glass-fibre reinforcedpolyamide thermoplastic. Located betweenthe backflush valves and outlet manifold, thebodies are secured by Victaulic™ clamps.Helix Automatic Disc CartridgeThe disc cartridge is located within the filter and iscomprised of a stack of grooved polypropylene discsand a frame that holds these discs in place bymeans of a compression spring. This frame alsocontains the helical element, a disc cap assembly,check valve assembly and four, jetted backflushchannels. Filter discs are colour coded to indicatethe mesh size. Orange = 150 mesh (100 micron),Red = 120 mesh (130 micron), Green = 75 mesh (200micron). (Note: For specialised industrialapplications, discs providing 50 and 20-micronfiltration are available.)

O-Rings for Filter Cartridge

Two nitrile rubber o-rings are provided to ensure a

pressure tight seal between the Helix Automatic

Disc Cartridge and Filter Body.

Piston O-Ring Service Kit

Three nitrile rubber o-rings to provide hydraulic seal within the disc cap assembly.

Filter Cover The Filter Cover is moulded from exceptionally tough glass-fibre reinforced polyamide thermoplastic resin and is designed to withstand high internal working pressures. Filter Covers are supplied standard in black polyamide however optional clear covers are available to permit the filtration and backflushing processes to be monitored visually. One clear Filter Cover is supplied with DIX-AZUD Helix Automatic Filter systems. Clear covers are not suitable for continuous use in direct sunlight.

Stainless Steel Clamp and O-Ring for Cover/Body The Filter Cover is attached to the Filter Body by means of an adjustable, Grade 316 Stainless Steel over-centre type clamp. A pressure tight seal between cover and body is achieved by means of a nitrile rubber o-ring.

Filter Body

Helix Automatic Disc Cartridge

O-Rings for Filter Cartridge

Piston O-Ring Service Kit

Filter Cover

Stainless Steel Clamp and O-Ring for Cover/Body

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Threaded Cap (with o-ring)

A Threaded Cap with o-ring seal is provided to seal the secondary outlet. Depending on the model, some applications require an in-line outlet whilst others require it to be positioned at right angles.

Backflush Valve and 3-Way Solenoid Valve The Backflush Valves are located between the filters and inlet manifolds. They are actuated by 3-Way Solenoid Valves, which receive a control signal from the DIX Filter Controller indicating when filters require cleaning.

Control Line Disc Filter A Control Line Disc Filter is plumbed between the Inlet Manifold and Backflush Valve control tubes to supply clean water for the purpose of providing actuating forces to the valve diaphragms. This filter is not self-cleaning and should be regularly inspected to ensure proper operation of the Backflush Valves.

Murphy® Pressure Differential Gauge A Murphy® Pressure Differential Gauge compares

the line pressures in both inlet and outlet

manifolds. The pressure differential value is

conveyed to the filter’s controller for processing.

Air Relief Valve Air relief valves are fitted to the top of the Filter Covers. These valves permit the free drainage of water from the filter housing immediately prior to backflushing to ensure maximum water jet pressure is applied to the surfaces of the filter discs, optimising cleaning cycle effectiveness. (Air-assisted models are not fitted with Air Relief Valves.)

Threaded Cap

Backflush Valve and 3-Way Solenoid Valve

Control Line Disc Filter

Murphy® Pressure Differential Gauge

Air Relief Valve

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DIX Filter Controller DIX-AZUD Helix Automatic Disc Filters are suppliedwith an electronic DIX Filter Controller that operateson either 240VAC, 110VAC, 24VAC or 12VDC. Thisunit allows backflushing to be initiated by eithertime and/or differential inlet/outlet manifold pressures. Alternatively, the unit is capable of processing signals from a flow sensing transponder to permit backflushing once a predetermined volume of water has been filtered. To protect the controller from moisture and dust, the unit is supplied in an IP55 rated plastic enclosure. DIX Filter Controllers are supplied with a separate owner’s manual that clearly details the set-up and operating procedures.

Inlet and Outlet Manifold DIX-AZUD Helix Automatic Filter manifolds are fabricated from Grade 304 Stainless Steel to ensure chemical and abrasion resistance. The manifolds provide a mounting structure for the assembly and direct water to and from the filter housings.In installations where the water source contains chloride levels above 200mg/L (200ppm) at ambient temperatures, reducing to 150mg/L (150ppm) at 60°C, pitting, crevice corrosion or stress cracking may be experienced in grade 304 stainless steel. Chlorine injection practices that result in concentrations>2mg/L (>2ppm) should be positioned downstream of the outlet manifold. The Nickel Development Institute recommends grade 316 stainless steel where chloride levels exceed 200mg/L (200ppm). These are available from us, subject to special order and pricing.

Flush Manifold The 2” polyethylene flush manifold receives backflush water from the filters through the Backflush Valves during cleaning operations. The discharge from this manifold should always be to atmospheric pressure. Plumbing the discharge against pressure or a vertical rise will adversely affect backflush performance.

DIX Filter Controller

6. OPTIONAL AIR-ASSISTEDBACKFLUSHINGDIX-AZUD Helix Automatic Filters are optionallyavailable in a format that utilises compressed airduring backflushing to reduce the duration ofbackflush cycle. When supplied in this format,the Air Relief Valve and Control Line Disc Filterare not required however a Check Valve is fittedto each Filter Body to prevent water entering thepneumatic control lines.

In air-assisted backflush variants, pressure regulated compressed air supplied from an external source is utilised to both actuate the Backflush Valves and to rapidly expel water from the filters during backflushing operations, thereby markedly reducing the time taken to complete a backflush cycle. Apart from the water saving benefits of air-assisted backflushing, systems operating at hydraulic pressures less than 300 kPa are able to utilise automatic disc filtration.

Systems utilising air-assisted backflushing should be fitted with air relief valves to ensure the effective purging of excess air from pipelines.

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7. TECHNICAL DATA

Filter Module Specifications

Filter Size 2” 3” A 2” Victaulic™ 3” Victaulic™B 2” Victaulic™ 3” Victaulic™C (Threaded Cap) 2” BSP 3” BSP D ¾” BSP ¾” BSP E ¼” BSP ¼” BSP F 138mm 152mmG 155mm 169mmH 717mm 731mmI 100mm 100mmMinimum Pressure#1 300 kPa 300 kPa Maximum Pressure 1,000 kPa 1,000 kPa Minimum Flow Rate#2 6 m3/hr/filter body 6 m3/hr/filter body Maximum Flow Rate#2 20 m3/hr/filter body 30 m3/hr/filter body Backflush Flow Rate 8.8 m3/hr 8.8 m3/hr Filter Surface Area 1,492 cm2 1,492 cm2 Maximum Temp. 60oC 60oC pH Range 4 to11 4 to11 Filtration Mesh (Micron) #3

150 mesh (100µm) / 120 mesh (130µm) / 75 mesh (200µm)

150 mesh (100µm) / 120 mesh (130µm) / 75 mesh (200µm)

Notes: #1. This is the minimum recommended inlet pressure to ensure effective backflushing of filters in

installations where the Flush Manifold does not discharge against pressure or a vertical rise. #2. Dependant upon the source water quality. Please refer to the Flow Rate: Water Quality Tables for detail

of flow rates for specific filter bodies. #3. 20µm and 50µm filtration discs are available for specialised industrial application. The flow rates

through these filters are lower than the values quoted in this table.

Model Configuration DIX-AZUD Helix Automatic Filters areconstructed in a modular format containingmultiples of either 2” or 3” filters. The 2” modelsrange from two to four filter housings, whilst 3”models are available in banks of two to sixfilters. For very high flow applications

DIX-AZUD Helix AutomaticPlus filters are available in banks of eight, ten and twelve 3” filters.

The model number designates both the size of the filters and the number of individual housings. (Eg: Model number 306 designates six, 3” filter housings.)

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Flow Rate v’s Water Quality Table

Model Number

Manifold Size

Very Poor Water

Quality Maximum

Flow

Poor Water

Quality Maximum

Flow

Average Water

Quality Maximum

Flow

Good Water

Quality Maximum

Flow 202 3” - 20m3/hr 30m3/hr 40m3/hr 203 3” - 30m3/hr 45m3/hr 60m3/hr 204 4” - 40m3/hr 60m3/hr 80m3/hr 302 4” 20m3/hr 28m3/hr 40m3/hr 60m3/hr 303 4” 30m3/hr 42m3/hr 60m3/hr 90m3/hr 304 6” 40m3/hr 56m3/hr 80m3/hr 120m3/hr 305 6” 50m3/hr 75m3/hr 100m3/hr 150m3/hr 306 6” 60m3/hr 90m3/hr 120m3/hr 180m3/hr 308 8” 80 m3/hr 120m3/hr 160m3/hr 240m3/hr 310 8” 100 m3/hr 150m3/hr 200 m3/hr 300m3/hr 312 10” 120 m3/hr 180m3/hr 240 m3/hr 360m3/hr

Note: Maximum flow rates are determined at 35 kPa head loss. Increasing flow rates above the recommended maximum values will increase head losses.

System Dimension Table

Model Number

A B C D E F

202 1605 690 250 600 925 670203 1605 690 250 900 925 670204 1625 700 250 1200 945 670 302 1625 700 290 600 945 720303 1685 730 290 900 1005 720304 1685 730 290 1200 1005 720 305 1685 730 290 1500 1005 720 306 1685 730 290 1800 1005 720

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Head Loss x Flow Graphs

Model Number

A B C D E F G

308 1685 500 500 1200 215 1820 810 310 1685 500 500 1500 215 1820 810 312 1685 500 500 1800 215 1870 810

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8. INSTALLATION GUIDELINES• To avoid excessive stress on manifold and

support frame welds, the DIX-AZUD Helix Automatic Filters must be mounted on a firm, supporting surface. It is recommended that a concrete pad be provided and that supporting legs are packed level, prior to permanent fastening with suitable masonry anchors. Whilst not essential, consideration should be given to the provision of a weatherproof structure to provide additional protection to filters and controller.

• Provide a quick pressure relief valve upstream and downstream of the filter set to activate at maximum 1,000 kPa. This will prevent damage to the filter should severe water hammer be experienced. Pressure relief valves are available in a range of sizes. Consult us to obtain the proper valve for each application.

• The DIX-AZUD Helix Automatic Filters require a minimum pressure of 300 kPa to guarantee effective backflushing.

Should available pressure be less than 300 kPa, a pressure-sustaining valve must be installed directly downstream of the filter manifold outlet to maintain sufficient backflush cycle pressure. This sustaining valve should be set to activate for the duration of the backflush cycle and deactivate when not in backflush mode.

• Ensure the inlet and outlet connections aresecurely fastened to your piping system. Arrowson the housings clearly depict flow direction.

• Check that all Filter Covers are correctly seatedand Stainless Steel Clamps securely latchedprior to pressurising the system.

• Confirm that backflush water is discharged inaccordance with all environmental regulationsand local authority bylaws.

• Connect the DIX Filter Controller to a suitablepower source and set desired values for timeinterval between backflush cycles andbackflush cycle duration. Appropriate settingswill be determined by the source water quality,however as a guide to initial set-up, set timeinterval to 60-120 minutes and duration to 30-40seconds (10-20 seconds for optional air-assistedbackflush) and monitor filter performance.

• Adjust desired set point of the Murphy®Pressure Differential Gauge. As a guide to aninitial set point, use “Clean Filter” pressuredifferential value, plus 30 kPa.

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9. MAINTENANCEWeekly Inspection and Maintenance

• Inspect all manifolds, couplings and filterhousings for leaks.

• Inspect and clean the Control Line Disc Filter.

Monthly Inspection and Maintenance

• Ensure the DIX Filter Controller is powered upand that time and pressure differential settingsare correctly set.

• Initiate a manual backflush cycle on the DIXFilter Controller. Confirm that all Filters,Backflush and 3-Way Solenoid Valves areoperating correctly. On completion of manualcleaning cycle, observe and compare the “CleanFilter” Pressure Differential with the recordedset-up value.

• With the system depressurised, open all Filter

Covers and visually inspect Disc Cartridges for

signs of damage and to confirm the discs are

being cleaned adequately during backflush

cycles.

Seasonal Inspection and Shutdown

• Immediately prior to shutdown, initiate amanual backflush cycle to ensure the filters arein a clean state. Drain the filtration system of allwater and leave manifolds plugs open to air.

• Individually remove each Filter Cover andwithdraw the Disc Cartridge by gently rocking itback and forth whilst lifting up on its Top Cap.Unscrew and remove the Top Cap to release thediscs. Place loose discs in a large plastic tuband clean with a high pressure hose to removeaccumulated grime. If discs remaincontaminated with algae, slime or mineral buildup, they may be effectively cleaned in a twostage chemical bath process.

• Stage One – Immerse discs in a 10%Hydrochloric Acid solution for two hours,followed by a thorough rinsing in clean runningwater. (Ensure protective clothing, rubbergloves and eye protection is worn whenhandling caustic solutions. Hydrochloric Acidmay be purchased from swimming poolsupply companies. Do not use concentratedHydrochloric Acid. If in doubt, obtainprofessional advice on the handling anddilution of acids.) Stage Two – Immerse discsin undiluted household bleach for one hour,followed by a thorough rinsing in clean runningwater.

• Disassemble the Check Valve assembly in thebase of the Disc Cartridge and inspect the

rubber Check Valve Seal for signs of splitting.

• Inspect the four Backflush Channel’s jets forobstruction and clean as necessary prior toreassembling the Check Valve assembly.

• Inspect the Top Cap’s three o-ring seals forsigns of splitting and replace as necessary.Lubricate all o-rings with a thin film of siliconegrease before reassembling the Disc Cartridge.

• Note: It is necessary to remove the circlipretaining the compression spring to inspect thetwo smaller o-rings. Ensure the correct number(330) of discs are installed in each cartridge.

• Inspect the Filter Cartridge, Filter Cover andThreaded Cap o-rings for signs of splitting andreplace as necessary. Lubricate all o-rings witha thin film of silicone grease.

• Disassemble Air Relief Valves to check forblockage and clean as necessary.

• Remove the Backflush Valves’ covers to checkcondition. Clean and lubricate the rubberdiaphragms, seals and pistons with siliconegrease.

• Clean the Control Line Disc Filter and inspectall control tubes for blockage, clean asnecessary.

10. TROUBLESHOOTING• Properly maintained DIX AZUD Helix

Automatic Disc Filters provide years of troublefree service. Should the system fail tobackflush correctly, the following list ofitems should be checked prior to callingfor professional service assistance.

• Confirm the DIX Filter Controller isreceiving power.

• Confirm the DIX Filter Controller’s intervaland flush time settings are appropriatefor the supply water quality.

• Inspect and clean as necessary the ControlLine Disc Filter and all backflush valves’control tubes.

• Check the Inlet and PressureDifferential pressures by comparing againstthe recorded “Clean Filter” initial set-upvalues. Investigate causes of substantialvariation from these values.

• Ensure the Flush Manifold is notdischarging against pressure or a vertical rise.

• Check the integrity of all 3-Way SolenoidValve electrical connections.

• Clean and lubricate each BackflushValve’s diaphragm and piston.

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11. WARRANTY

Who gives this warranty (Warrantor)?

G.J. Dix & Sons Pty Ltd

279 Renmark Avenue

Renmark

South Australia 5341

Who receives this warranty (Purchaser)?The

original purchaser (other than for purposes of

resale) of the product.

Duration

DIX-AZUD Helix Automatic Filters,Automatic Filter Controller and Valves: One yearfrom the date of purchase by the originalpurchaser.

What products are covered by this warranty?

DIX-AZUD Helix Automatic Filters,

Automatic Filter Controller and valves

manufactured or sold by the warrantor.

What is covered under this warranty?

Manufacturing defects in materials and

workmanship, which occur within the duration

of the warranty period.

What is not covered under this warranty?Any incidental, indirect, or consequential loss, damage or expense that may result from any defect, failure or malfunction of the warranted product.Any failure that results from an accident, purchaser’s abuse, neglect, operation in excess of stated maximum working pressure or failure to operate and maintain the warranted product in accordance with the instructions provided in the owners manual supplied with the product. Items or service that are normally required to maintain the product in good working order (eg Seals, O-Rings).

Corrosion, pitting and/or stress cracking of grade 304 stainless steel filter housings resulting from use of filters with a water supply that contains chloride levels above 200mg/L at ambient temperatures, reducing to 150mg/L at 60°C and/or as a consequence of water chlorination practices that produce chlorine concentrations above 2mg/L, even for short periods of time.

Responsibilities of warrantor under this warranty. Repair or replace at the warrantor’s option DIX-AZUD Helix Automatic Filter orcomponents that have failed as a result of faultymanufacture, within the duration of thewarranty period.

Responsibilities of purchaser under this warranty. Immediately notify G.J. Dix & Sons Pty Ltd of any potential warranty claims. Deliver or ship the DIX-AZUD Helix Automatic Filter product to the warrantor’s manufacturing facility. Freight costs if incurred must be borne by the purchaser. Use reasonable care in the operation and maintenance of the product as described in the owner’s manual.

When the warrantor will perform repair or replacement under warranty? Repair or replacement will be scheduled and serviced according to the normal workflow at the warrantor’s manufacturing facility, dependant upon the availability of replacement parts. If the purchaser does not receive satisfactory results from the product repair or replacement, the purchaser shall advise the warrantor immediately.

NOTE: THIS WARRANTY IS VOID AND G.J. DIX & SONS PTY LTD ASSUMES NO LIABILITY WHATSOEVER IN THE EVENT OF THE PURCHASER FAILING TO COMPLY WITH ANY OF THE REQUIREMENTS FOR INSTALLATION AND USE OF DIX-AZUD HELIX AUTOMATIC FILTERS, OUTLINED IN THIS MANUAL.

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Owner’s Information

Dealer Name: .....................................................................................................................................................................................................................................

Dealer Address: ................................................................................................................................................................................................................................

........................................................................................................................................................................................ P/code: ........................................................

Telephone: ....................................................................................................................................

Facsimile: ......................................................................................................................................

Date Purchased: .................. / ................... / ...................

Date Installed: .................. / ................... / ....................

Model Number: ........................................ Pressure Differential Set Point: ..................................... kPa

Design Flow Rate: ...........................L/min Interval Between Backflush Cycles: ............................. minutes

Inlet Pressure: ............................... kPa Backflush Duration: ..................................... sec

“Clean Filter” Pressure Differential: ............................... kPa

For future reference, please record your dealer’s details and the initial operating parameters in the space provided below.

AUSTRALIA – G.J. Dix & Sons Pty Ltd (ABN 29 071 654 558)

SA Sales Office and Factory

279 - 281 Renmark Avenue

PO Box 804 Renmark

South Australia 5341

Ph: (08) 8586 1500

Fax: (08) 8586 5364

Email: [email protected]

Web: www.dixrenmark.com.au

Date: October 2015

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Limitation of Liability

The information contained in this handbook is

not intended to be an exhaustive statement of all

relevant data applicable to AZUD Helix

Automatic Filters. It has been designed as a

guide for customers to the products and/or

services G.J. Dix & Sons Pty Ltd can offer. No

responsibility is implied or accepted for or in

conjunction with quality or standard of any

product or its suitability for any purpose or use.

It is the responsibilty of the user to ensure

product specified is fit for the purpose intended.

All conditions, warranties, obligations and

liabilities of any kind which are or may be

implied or imposed to the contrary by any

statute, rule or regulation or under the general

law and whether arising from the negligence of

the company, its servants or otherwise are

hereby excluded except to the extent that the

company may be prevented by any statute, rule

or regulation from doing so.

Terms and Conditions of trade can

be downloaded at:

www.dixrenmark.com.au

Any information quoted in this manual

should be considered approximate only.

Photographs and drawings in this

manual are for illustration purposes only.

G.J. Dix & Sons Pty Ltd reserves the right

to correct errors or misprints.

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Finger Filter Finger Filter

DIX AZUD Helix Automatic Disc Filter

Hydraulic Connections for Automatic Control