Filter Change And Flushing Procedure - Pentair EVERPURE EZ-RO 200/2G-BL Installation & Operation Manual

FILTER CHANGE AND FLUSHING PROCEDURE

Recommended: Replace mineral feed cartridge
every 6–12 months. For 200 and 375 systems use 4CM
cartridge. RO membranes should be replaced every
12-24 months. Prefilters should be replaced every 4-6
months when capacity is reached, or when feed water
pressure or flow becomes inadequate.
REMOVE FILTERS
1. Turn inlet valve right to the OFF (horizontal) position.
NOTE: Feed water is shut off to filters in this "filter
change" position.
2. Place bucket under RO processor. Open permeate
sample port valve (pointing down) to release pressure.
3. Make sure incoming pressure is at 0 psi.
4. Remove pre-filter, mineral addition, and membrane.
Twist filters a quarter turn to left and pull down.
Keep membrane if it will not be replaced. Dispose of
old cartridges that are being replaced.
REPLACE PRE-FILTER AND MINERAL ADDITION
CARTRIDGES, ADD PLUG TO MEMBRANE PORT
5. a. Add new pre-filter to position 1
(insert and turn 90 degrees to right).
b. Add new mineral addition cartridge to position 2
(insert and turn 90 degrees to right).
c. Add RO membrane bypass plug (stored under cover)
to the farthest right position (insert and turn 90
degrees to right).
6. Close the permeate sample port valve (pointing left).
FLUSH PRE-FILTER AND MINERAL CARTRIDGES
7. Turn reject flush valve to open position (pointing down).
8. Close tank valve.
• Optimized water to equipment will be paused
during this step.
9. Turn outlet valve to closed position – putting
equipment into BYPASS.
10. Direct end of the tank sampling valve tube into a
bucket or drain. Open tank sampling valve.
11. Turn inlet valve to open (vertical) position.
• Water will start to fill pre-filter and mineral
cartridges.
• Water will run from the reject line and tank
sampling valve.
12. Flush pre-filter and mineral cartridge for 10 minutes
or until water runs clear.
16 | PENTAIR EZ-RO INSTALLATION AND OPERATION GUIDE
Proof April 18, 2022
1 2
remove all three remove all three
3 4
pre- pre- mineral mineral memb. memb.
filter filter addn. addn. plug plug
permeate permeate
sample sample
port port
5
6 valve valve
reject
flush
valve
closed closed
7 8
tank tank
sampling sampling
valve valve
9 10
(open) (open)
11 12
FOODSERVICE.PENTAIR.COM
FILTER CHANGE AND FLUSHING PROCEDURE (CONTINUED)
RETURN EXISTING RO MEMBRANE OR REPLACE
WITH NEW RO MEMBRANE (IF REQUIRED)
13. Turn inlet valve to closed position (horizontal).
14. The psi gauge will reduce to 0 psi.
15. Remove membrane bypass plug (turn 90 degrees,
left and pull down). Store under cover.
16. Insert RO membrane into the farthest right position
(insert and turn 90 degrees to right).
17. Turn inlet valve to open position (vertical).
• Water will start to flush through membrane. Water
will run from reject line and tank sampling valve.
18. Close tank line sampling valve.
19. Open tank valve if using existing membrane. Leave
closed if installing new membrane.
FLUSH NEW MEMBRANE
IF REUSING EXISTING MEMBRANE, SKIP TO STEP 25
20. If needed, put system into partial bypass.
• Turn inlet valve 45 degrees.
• Turn outlet valve to the right.
NOTE: Partial bypass allows feed water to go to
equipment and also allows water to flush RO membrane.
The partial bypass setting will allow untreated water to
go to equipment during the RO membrane flushing.
21. Make sure that the reject flush valve and the
permeate sample port valves are both open.
Open = pointing down.
22. Continue to flush membrane for one hour.
23. After one hour close reject flush valve.
Closed = pointing left.
24. Continue to flush membrane for 23 hours.
NOTE: Permeate water can be flushed through the
tank sampling port instead of the permeate sample
port. To do this, close the tank valve, close the
permeate sample port and open the tank sampling port.
You can run additional tubing from the tank sampling
port to a drain.
PENTAIR EZ-RO INSTALLATION AND OPERATION GUIDE
Proof April 18, 2022
13 14
remove remove
plug plug
15 16
tank tank
sampling sampling
valve valve
17 18
(closed) (closed)
partial partial
bypass bypass
open open
19 20
reject open open
flush
valve
permeate
sample
port
open open
21 valve
22
reject
closed closed
flush
23
valve
HOURS
23 23
24
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