5
Filter Cartridge Replacement Procedure
Determine whether all equipment connected to the OneFlow
system must be turned off prior to shutting off water supply.
1. If required, turn off equipment.
2. Turn OFF water to OneFlow system by closing inlet ball valve.
3. Press the red pressure relief button on top of system until
water stops flowing from button.
4. Remove housing – use filter wrench if necessary.
5. Clean inside of housing bowl with warm water. If desired,
disinfect housing bowl using a teaspoon of household
bleach. Add to housing bowl and fill with water. Let stand
5 minutes and then discard.
6. Insert new cartridges into filter housing bowl. Match car-
tridge model numbers to model numbers on bracket.
7. Make certain the O-ring is properly positioned and reinstall
filter housings (hand tighten only). Check O-ring for damage
and replace if damaged or distorted.
8. Slightly open the inlet ball valve and push the red pressure relief
button to release trapped air in the system. Stop pressing the
pressure relief button when a small amount of water comes out.
Fully open the inlet ball valve.
9. Open the flush valve downline from the filter housing (if
equipped) and flush the new cartridges to drain or bucket
for two (2) minutes or until water runs clear. If no flush valve
is present, disconnect line from equipment to flush to drain.
10. With water supply inlet valve OPEN and water flow confirmed,
turn on connected equipment. Failure to supply water to equipment
may cause serious damage.
11. Record filter change on the service log.
Maintenance
Routine maintenance of your OneFlow system involves periodic
filter cartridge changes and/or replacement of sump O-rings. If the
system sizing recommendations have been followed, the OneFlow
Cartridge should last one year.
Filter Change Frequency
The filters should be changed in response to the following conditions.
Replacement Filter 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.
Operation
With sufficient pressure, operation of the Watts
®
OneFlow system
is completely automatic. Dependable operation involves only periodic
filter changes and maintaining service documentation.
NOTICE
NOTICE
Filter Cartridge Replacement Frequency
System Model
Number
Replacement OneFlow
Filter Cartridge
Model Number
Replacement Frequency
OF110-1
OF110RM
Replace every 12 months
OF120-2
OF120RM
Replace every 12 months
OF140-4
OF140RM
Replace every 12 months
2
3
4
8
7
6
