Nexus Type 2 Kurzanleitung
NEXUS 210 / 310 UPGRADE KIT INSTALLATION
Evolution Aqua Ltd
Evolution House Kellet Close Wigan WN5 0LP England +44(0)1942 216554
Evolution Aqua Ltd
Evolution House Kellet Close Wigan WN5 0LP England +44(0)1942 216554
Installation and instruction manual for:
200 / 300 Eazy Retro Upgrade Kit
Type 2 - Nexus 200 and 300 Upgrade Kit
(Upgrades the Eazy Filter in a Nexus 200 and 300
Models Manufactured Between 2006 - 2009
to the Nexus 210 and Nexus 310)
The difference is clear at www.evolutionaqua.com
Which type of Nexus do you have?
If you have this type of Nexus filter you are able
to upgrade the inner chamber to allow you to
install the Eazy filter.
You will need:
Type 1 - Nexus Upgrade Kit (Eazy Retro Kit)
Additionally, you can install an overflow / by-pass
kit on this model of Nexus 200 or 300.
For this you will need:
Type 1 - Nexus Overflow / Universal By-Pass Kit
If you have this type of Nexus filters you are able
to upgrade the Eazy Filter to a Post 2009 Eazy
filter as used in the Nexus 210 or 310.
To do this you will need:
Type 2 - Nexus Eazy Upgrade Kit
Additionally, you can install an overflow / by-pass
kit on this model of Nexus to give you all the ben-
efits of a Nexus 210 and Nexus 310.
To do this you need:
Type 2 - Nexus Overflow / Universal By-Pass Kit
Nexus 200 / 300
Manufactured before 2006
Without an Eazy Filter
Nexus 200 / 300
Manufactured between 2006 and 2009
With a Pre-2009 Eazy Filter
Nexus 200 / 300 Manufactured before 2006 Nexus 200 / 300 Manufactured 2006 to 2009
Or Nexus models fitted
with an “The Answer”
Sponges EAZY
Narrow Exit
Wider Exit
NEXUS EAZY UPGRADE KITS
Evolution Aqua Ltd
Evolution House Kellet Close Wigan WN5 0LP England +44(0)1942 216554
NEXUS EAZY UPGRADE KITS
This manual will give you all the information needed to upgrade your existing Nexus 200 or
300 to a Nexus 210 or 310. First step is to establish which of the two methods of installation
you intend to use. Your Nexus units could be installed in the following congurations:-
ARE YOU PUMP FED? By this we mean that if your pump is going to be used to supply the
water to the lter, and the ltered water then returns back into your pond via gravity,
i.e. down a waterfall, or through a large diameter pipe, this is referred to as PUMP FED
(i.e. the water is fed to the lter using a pump).
ARE YOU GRAVITY FED? By this we mean that your pump is going to be used to return
the ltered water to the pond and therefore your lter will be supplied by gravity via a
larger diameter pipe. In this situation the water level in the lter will be at the same level
as the pond.
ENSURE THAT ONCE YOU HAVE ESTABLISHED WHICH SET UP YOU WANT
TO USE, REFER ONLY TO THE CORRECT SECTION IN THIS MANUAL.
IMPORTANT PLEASE READ BEFORE
CONTINUING WITH INSTALLATION
The difference is clear at www.evolutionaqua.com
NEXUS 200 / 300 EAZY UPGRADE KIT INSTALLATION
Please Note: When upgrading from a pump fed Nexus 300 to a pump fed
Nexus 310 you may need to lower the outlet pipe by approximately 20mm.
You may also need a tube of Aquarium Silicone (not included).
Your Nexus TYPE 2 Upgrade Kit parts checklist:-
Screwdriver,
Silicone sleeve & Screw
Air hose
Eazy Main Body
Including Air Ring
Inner centre column
complete with ap
Eazy Centre Lid
Nexus 200
Upgrade Kit
Only
Bag containing jubilee clips
and screws
NEXUS 200 / 300 EAZY UPGRADE KIT INSTALLATION
Evolution Aqua Ltd
Evolution House Kellet Close Wigan WN5 0LP England +44(0)1942 216554
1. Empty your Nexus and remove the K1 and place to one side ready to re-use.
2. Remove the airline and the Eazy lter from inside your Nexus as in gures 1 to 4. Undo airline to
biological stage (leave in place).
FIG.
1
FIG.
2
FIG.
3
FIG.
4
The difference is clear at www.evolutionaqua.com
3 Place the circular Eazy Main Body into position with the plate directly over the waste outlet.
Notice the position of the hole on the Eazy Main Body for the airline to go through. (Figure 5)
4 When positioning the Eazy Main Body air-ring, the T piece connector needs to be
opposite this hole.
FIG.
5
5 Attach the 3 black hose clips onto the air ring, spacing them equally. Place the ring in position
over the centre column of the Nexus.
NEXUS 200 / 300 EAZY UPGRADE KIT INSTALLATION
Evolution Aqua Ltd
Evolution House Kellet Close Wigan WN5 0LP England +44(0)1942 216554
NEXUS 200 / 300 EAZY UPGRADE KIT INSTALLATION
6 Mark the position of the clips. Remove the ring, and screw the clips into the positions that you
marked using the self tapping screws provided. (Figure 6)
7 Place the Eazy Main Body into position with the plate over the waste outlet, install the air ring and
connect up the air line.
8 Screw the Eazy Main Body into position by using the self tapping screws provided through the tabs
on the bottom of the Eazy. N.B. On a Nexus 200 the tabs are on the outside (Fig. 7), on the 300 the
tabs are on the inside (Fig.8). Please ensure that when screwing the 200 Eazy Main Body down,
that the steel work is positioned in the groove, making sure that the K1 media cannot escape.
FIG.
6
FIG.
8
300
FIG.
7
200
The difference is clear at www.evolutionaqua.com
NEXUS 210 / 310 UPGRADE KIT INSTALLATION
8 Install the inner centre column by placing it over the centre column of the Nexus and tighten
the jubilee clip provided. It is recommended that you run a bead of aquarium silicone around the
inside bottom edge of the stainless steel centre piece to enable a watertight seal.
9 Replace the K1 into the Eazy. Fill up to the level shown ensuring that the top grill on the Eazy Main
Body is still visible. Now clip on the clear lid.
10 Ensure the airline is connected. Fix airline to the lter using the clips provided as shown.
FIG.
9
FIG.
11
FIG.
10
FIG.
13
300
FIG.
12
200
NEXUS 210 / 310 UPGRADE KIT INSTALLATION
Evolution Aqua Ltd
Evolution House Kellet Close Wigan WN5 0LP England +44(0)1942 216554
The difference is clear at www.evolutionaqua.com
NEXUS CLEANING INSTRUCTIONS - PUMP FED
CLEANING YOUR NEXUS PUMP FED
The central ‘Eazy’ section of the Nexus will collect all the debris and suspended solids that come
into the lter. In time you will nd out how often you need to clean this, and probably get into
a routine to keep the lter working at its optimum. Each pond is different, and the regularity of
cleaning is affected by stocking levels and
feeding rates along with other factors such as
algae in the pond.
WHEN TO CLEAN?. The indication that your
lter requires cleaning is when you see water
owing out of the overow as in Fig 3.2.
Normally we would not recommend leaving
the lter uncleaned more then 3 weeks. The
lter can be left longer if absolutely necessary
but this would not be best practice.
Cleaning procedure
1. Close the valve at the Nexus inlet and immediately switch off your pump.
2. Close the inlet to the inner chamber by inserting inlet slide-plate supplied with your
Nexus. Your Eazy is now isolated from the rest of the system
3. Turn the air valve to divert the air into the Eazy, close the air valve to the
bio stage.
4. The K1 media in the Eazy will now be agitated vigorously, or ‘boil’. As this happens,
all the debris trapped in the K1 will be released into the vortex area of the
central chamber.
5. After about 5 minutes, open the waste valve, allowing the waste to drain out
with the water Fig 3.3.
6. Take out the inlet slide plate.
7. Open the valve on the inlet, switch on your circulating pump.
8. Close the waste valve.
9. Close the air valve, to the inner chamber and open the air valve to the
outer chamber.
10. We would recommend that you perform the cleaning process twice wherever
possible to ensure best results.
Fig 3.1 Normal operation Fig 3.2 Needs cleaning
Fig 3.3
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