6
OFTWH_OFTWH-R_IT_IOM_UK_02_21_Rev1
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.
5. Maintenance
Routine maintenance of your OneFlow
®
system involves periodic
cartridge changes and/or replacement of sump O-rings.
If the system sizing recommendations have been followed,
the OneFlow
®
cartridge should last two years.
5.1 Cartridge change frequency
The cartridges should be changed in response to the following
conditions.
OFTWH-R-RM • 24 months since installation or last cartridge
change.
OFTWH-RM • 24 months since installation or last cartridge change.
5.2 Replacement cartridges
OneFlow
®
systems can only be used with OneFlow
®
filter
cartridges. Use of replacement cartridges other than those
specified will void warranties, certifications and may compromise
equipment protection, water quality and equipment life.
Cartridge replacement procedure
1.
IMPORTANT:
All other equipment connected to the OneFlow
®
system must be turned off prior to shutting off water supply
from filters.
2. Release pressure by turning the black screwable plastic swivel
button identified by the “VENT” sign (H).
3. Turn OFF water to OneFlow
®
system by closing
inlet ball valve.
4. Remove housing – use cartridge wrench if necessary.
5. Remove cartridge from housing. Clean inside of housing with
warm water. If desired, disinfect housing by adding a teaspoon
of household bleach to housing, fill with water, let stand for 5
minutes, and then discard.
6. Insert new cartridge into the housing. Match cartridge model
number to model number on bracket.
7. Check O-ring (E) for damage and replace if damaged or
distorted. Make certain the O-ring is properly positioned and
reinstall filter housing (hand tighten only).
8. Slightly open the inlet ball valve; open the pressure relief
swivel (H) to release trapped air until a small amount of water
comes out – close the pressure relief button and fully open
the ball valve.
9.
VERY IMPORTANT:
With water supply inlet valve OPEN and
water flow confirmed, turn on connected equipment. Failure to
supply water to equipment may cause serious damage.
Parts of OneFlow
®
OFTWH / OFTWH-R
Drawing ID
Description
A
Mounting Screws
B
Mounting bracket
C
Housing cap
D
Replacement Cartridge
E
O-Ring
F
Housing shell
G
Cartridge wrench
H
Pressure relief screw
A
B
C
D
E
F
G
H
