Installation Instructions
1/3
Product Code: NW 4210
one stage whole house filtration system,
clear water free of sediment
Instalation Schematic
WORKTOP
Preserve Release
Valve (Brass)
SINK
3/4 x 3/4 Inset
Hose Connector
Fixing
Bracket
IN
Filter
Housing
Head
OUT
Flexible Tap
Connector (see
instructions for
Screwfix part
number)
Filter Housing
Body
40mm
min
clearance
Water Supply
Isolation Valve
To House System
Cabinet
side
wall
Installation Instructions
2/3
Installation
Select a suitable place to mount the system after the mains stop cock
Using the 4 screws supplied fit the bracket to the Filter Housing Head
Offer the unit to the wall and mark the positions for the 2 bracket screws
Ensure that there is at least 40mm clear space between the base of the Filter Housing Body and
any fixture below to allow for filter changing
Use a 6mm masonry drill and fit the supplied plugs in a solid wall
Screw bracket with Filter assembly to wall.
Connection to Mains Supply
This can be carried out by a qualified plumber who may use solid fittings and copper tubing,
however for a convenient DIY method see following.
Fittings Required
Mains supply
pipe diameter
15mm
15mm
22mm
22mm
15 or 22mm
Fitting
Supplier / Code
Quantity
Flexible Tap Connector with Valve x 300mm long
Flexible Tap Connector with Valve x 500mm long
Flexible Tap Connector with Valve x 300mm long
Flexible Tap Connector with Valve x 500mm long
Inlet Hose Connector ¾ to ¾
Screwfix / D 52117
Screwfix / D 67794
Screwfix / D 18501
Screwfix / D 35826
DIY Store
2
2
2
2
2
First select the required Flexible Tap Connectors to suit the diameter of the mains supply pipe and
its position; there are 2 choices of length available 300mm or 500mm
Apply PTFE tape to one side of each Inlet Hose Connector. Screw connectors with taped ends
into the threaded holes in the Filter Housing Head, ensuring a watertight fit.
Turn water off at Mains stopcock
Open nearest tap to release pressure
Locate drain plug if fitted and drain residual water.
If no drain plug is available it will be necessary to catch any residual water in the system in a
suitable container when cutting the pipe.
Cut out required length of copper pipe, deburr the ends of pipe to be connected.
Fit a Flexible Tap Connector to each cut pipe by means of the compression fitting.
Screw the free end of the Flexible fitting from the mains supply to the port marked “IN” on the
Filter Housing Head and the other Flexible fitting to the port marked “OUT”
Filter Fitting
Remove outer wrapping from filter.
Unscrew Filter Housing and check that the large “O” ring is seated evenly in the top of the
housing.
Place filter into Housing and screw back on to Housing Head.
Carefully tighten Housing with ring spanner provided (see Filter Replacement for filter orientation).
Close the open tap and drain plug. Open the isolation valves fitted to the Flexible connectors then
turn water on at mains stopcock.
The system is now ready for use.
Installation Instructions
3/3
Warning
This system should only be fitted to the cold water supply, as hot water will severely damage the
system.
When assembling these units, etc
Filter Replacement
Replace filter after 12 months (depending on usage and quality of incoming water)
Turn water off at mains stopcock, open nearest tap to release pressure.
Close both isolation valves on Flexible connectors and open pressure release valve situated on top
of fixed head.
For safety, place a suitable tray or bowl beneath the Filter Housing Body to catch any spilt water.
Use Ring Spanner to loosen the Filter Housing Body and remove from the unit.
Empty any excess water and remove old filter. Check that the large “O” ring is seated evenly in the
top of the housing.
Remove outer wrapping from filter taking care not to loose any sealing rings if fitted and place in
Filter Housing.
Screw back onto Housing Head and finally carefully tighten with Ring Spanner.
Close Pressure Release valve, open both Isolation Valves and mains stopcock.
Check for leaks as above.
System Includes
1 X 10” housing with 3/4” brass inlets
1 X 25” micron polypropylene sediment filter NW 2113 - (No Sealing Rings)
1 X Key/Wrench
1 X Fixing bracket with screws
1 X Instruction Manual
Filter can be fitted
either way up
NW 2113
© Copyright LinearTools Ltd 2005
Issue 2005/9