6
OFPSYS EU_IOM_IT_W_UK_01_21_Rev0
Watts Water Technologies, Inc.
UK
The descriptions and photographs contained in this product specification sheet are supplied by way of information only and are not binding. Watts Industries reserves the right to carry
out any technical and design improvements to its products without prior notice. Warranty: All sales and contracts for sale are expressly conditioned on the buyer’s assent to Watts terms
and conditions found on its website at www.wattswater.eu. Watts hereby objects to any term, different from or additional to Watts terms, contained in any buyer communication in any
form, unless agreed to in a writing signed by an officer of Watts.
4. Maintenance
4.1
Changing the Filter Cartridges
1. Turn off water at supply valve or at main valve to home.
2. Use the Multifunction Tool (Item 6) to release air from the
system. This is done by taking the tool and unscrewing the
Pressure Relief Valve (Item 5) – refer Diagram F.
3. Use Multifunction Tool (Item 6) to unscrew OneFlow
®
+ EU
Head Assembly (Item 7) counterclockwise and remove from
the OneFlow
®
+ EU Housing as shown in Diagram G.
4. Remove Outlet Connector (Item 8 from top of OneFlow
®
+ EU
Scale Reduction (TAC) Cartridge – refer Diagram D.
5. Use Multifunction Tool (Item 6) to remove OneFlow
®
+ EU
Scale reduction (TAC) cartridge (Item 10) from the Sediment/
Carbon Cartridge (Item 9) as shown in Diagram H.
6. Remove the Sediment/Carbon (Item 9) from the OneFlow
®
+
EU Housing by hand.
7. Remove new Sediment/Carbon cartridge from packaging and
place carefully inside the OneFlow
®
+ EU Housing as shown
in Diagram B.
8. Insert OneFlow
®
+ EU Scale Reduction (TAC) cartridge back
into the center of the Sediment/Carbon cartridge making sure
that it is sealed correctly as shown in Diagram C.
9. Insert Outlet Connector (Item 8) into outlet port and secure
back on top of the OneFlow
®
+ EU Scale Reduction cartridge
as shown in Diagram D.
10. Place Head Assembly back onto OneFlow
®
+ EU Housing
and using the multifunction tool tighten by screwing
the Head Assembly clockwise as shown in Diagram E.
DO NOT OVER TIGHTEN
11. Close the pressure relief valve by tightening in a counterclock-
wise direction as shown in Diagram F.
12. Turn water supply on and check for leaks.
Notice
•
Where influent water pressure will at any time exceed 500
kPa (70 psi) a suitable pressure limiting valve must be
installed.
•
Product performance is dependent upon influent water
quality.
•
The system must be installed and maintained in accord-
ance with the manufacturer’s instructions including replace-
ment of the filter cartridges.
•
Please ensure all o-rings are well lubricated and clean from
foreign particles.
CLOS E
OPEN
Diagram A
Diagram E
Diagram F
Diagram G
Diagram H
Diagram B
Diagram C
Diagram D
