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Evolution Aqua Nexus Eazy 200, Installation And Instruction Manual

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Installation and Instruction Manual

Evolution House

4-6 Kellet Close

Wigan, WN5 0LP

United Kingdom

Ph: +44 (0) 1942 216 554

Fax: +44 (0) 1942 216 562

Web: www.evolutionaqua.com

Email: [email protected]

Summary of Contents for Nexus Eazy 200

Page 1: ...00 300 Installation and Instruction Manual Evolution House 4 6 Kellet Close Wigan WN5 0LP United Kingdom Ph 44 0 1942 216 554 Fax 44 0 1942 216 562 Web www evolutionaqua com Email info evolutionaqua com ...

Page 2: ...CONTENTS Page Introduction 1 Explanation 2 Installation 3 Gravity Fed Installation 4 Pump Fed Installation 6 Waste Pipe Installation 7 Getting Started 8 Cleaning 9 Kaldnes Biomedia 11 Appendix A 12 Dimensions 13 ...

Page 3: ...nance high performance and a compact foot print This design delivers optimum water quality by using the Kaldnes Moving Bed process Your Nexus Pack should contain Figure Part No Description 1 1 NPC 125 4 4 110 125mm rubber boot 1 2 NAC 1004 4 2 122 68mm rubber boot 1 3 825 50 50 1 5 50mm single union ball valve 1 4 1200 400 100 400 inlet slide plate 200 300 1 5 5000 707 safety outlet grill 1 6 MEDI...

Page 4: ...hin the centre chamber of the Nexus After water enters the Nexus it rotates around the Eazy in the centre chamber with a downward motion allowing the larger solids to settle to the bottom of the chamber before passing through the slots of the Eazy into the static K1 media After passing through these slots the water flows upwards through the K1 media where mechanical filtration takes place as small...

Page 5: ... Pond Pump with a maximum actual taking into account the head loss 1 flowrate no more than your Nexus model allows see Appendix A on page 12 for specs Air Pump to power the Kaldnes K1 Moving Bed see Appendix A on page 12 2 for specification of pump size Length of hose or braided pipe 10 mm inner diameter to connect the air 3 pump to the Nexus A valve should be fitted before and after the Nexus so ...

Page 6: ...entering the Nexus a valve is required so that the line can be shut and the Nexus isolated For long bottom drains it is recommended that a purge valve line is installed to remove solids that may settle in your bottom drain line This should discharge straight to waste if possible or into a suitably sized sump It is very important that when laying the bottom drain line that there is no section where...

Page 7: ...1 2 to the Nexus Outlet F 2 Connect the 1 5 Single Union Ball Valve Fig 1 3 to the 4 2 Rubber Boot 3 Fig 1 2 with the union side facing down towards the pump depending on your arrangement you may require an elbow between the boot and valve Connect your water pump to the Single Union Ball Valve Fig 1 3 on the 4 union side Place the 50L K1 media bag into the outside chamber D of the Nexus 300 5 x 2 ...

Page 8: ...andpipe correct The height of this standpipe is very important as it controls the height that the outer biological chamber of the Nexus runs at For a standard Nexus installation you need to cut a length of your 4 110mm return pipe 21 535mm for a 200 and 23 2 590mm for a 300 This needs to be inserted into the exit chamber E through the outlet F and then secured using the 4 4 110mm Fig 1 1 rubber bo...

Page 9: ...Eazy basket C 7 Connect your air pump to the Nexus air inlet H located next to the water 8 inlet using suitable hosing such as standard 12 mm diameter garden hose Connect the waste valves G to your waste outlet Described Below 9 Waste Pipe Connection The waste valves are where the waste from your Nexus is discharged when cleaning and prior to draining The 1 5 50 mm valve is for the Inner Chamber B...

Page 10: ...ure the valve to the outer chamber bottom valve is open and the valve to the Eazy top valve is closed as per figure 10 Once your media has achieved neutral buoyancy it will move and circulate around the outer chamber as shown in Fig 11 Importance of Flowrate TheflowratethroughyourNexusaffects how your Nexus runs in two different ways You will visually notice straight away that the levels in both t...

Page 11: ... on page 10 5 Remove the Nexus inlet slide plate allowing the nexus to refill 6 Remove the Isolation pipe 7 Restart your pump 8 Pump Fed With a pump fed setup the level in the inner chamber B rises when the Eazy becomes more blocked the Eazy has to be cleaned before this level gets too high and overflows into the outer chamber D Reduce flow to Nexus by closing single union ball valve most of the w...

Page 12: ...inner chamber and outer stainless steel of the Eazy with a hose then close the 1 5 waste valve Gravity Fed Remove inlet slide plate Gravity Fed until level stabilises then 4 replace slide plate Pump Fed Open single union ball valve and start pump allowing inner 5 chamber to refill until the water cleaning level is reached as in Fig 14 Then close valve and switch of pump The Eazy should now be aera...

Page 13: ...lonise Within the wheel is a protected surface which enables colonies of bacteria to naturally follow their life cycle maturing and dying in turn fuelling the latter stages of nitrification conversion process It also assists in the breakdown of any small particles passing through from the mechanical stage Therefore the Kaldnes media maintains both a young biofilm a maturing bio film providing a mo...

Page 14: ...K Gallons 7 500 UK Gallons 4 800 US Gallons 9 000 US Gallons Rec Airpump Airpump 70 75 Airpump 95 Volume filter Nexus Eazy 200 Nexus Eazy 300 105 Litres 205 Litres Chamber B 23 UK Gallons 45 UK Gallons 28 US Gallons 54 US Gallons 405 Litres 635 Litres Chamber D 89 UK gallons 139 UK Gallons 107 US Gallons 168 US Gallons 510 Litres 840 Litres Total volume 112 UK Gallons 185 UK Gallons 135 US Gallons...

Page 15: ...Appendix B 13 225 315 850 270 Water Level 1025 480 380 425 480 950 1010 785 735 1110 D 960 Water Level 370 1260 315 1320 D 1110 370 1430 320 ...

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