Watts OFTWH - Manual (Page 4)

4
Filter Cartridge Replacement Procedure
IMPORTANT: Determine whether all equipment connected to
the OneFlow ® system must be turned off prior to shutting off
water supply from filters.
1. If required, turn off equipment.
2. Turn OFF water to OneFlow
® system by closing
Inlet Ball Valve.
3. Press the red button to release pressure.
4. Remove housing(s) - use filter wrench if necessary.
5. Clean inside of housing sumps with warm water. If desired,
disinfect housing using a teaspoon of household bleach.
Add to filter bowl and add water. Let stand 5 minutes and
discard.
6. Insert new cartridge into filter housing. Match cartridge
model number to model number on bracket.
7. Make certain the O-ring is properly positioned and reinstall
filter housing (hand tighten only). Check O-ring for damage
and replace if damaged or distorted.
8. Slightly open the inlet ball valve; push the red pressure relief
button to release trapped air until a small amount of water
comes out - release the red button and fully open the ball
valve.
9. Open the flush valve downline from the filter housing (if
equipped) and flush the new cartridge 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. 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.
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 two years.
Filter Change Frequency
The filters should be changed in response to the following
conditions.
OFTWH-RM • 24 months since installation or last filter change.
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 service documentation.
8.
4.
3.
2.
6. 7.