34
LED may turn on and off as air is purged out of
the cartridge. Once the RO Prefilter has been
wetted, the LED should remain off.
DI Cartridge Replacement and Rinse Up
The frequency with which you will need to replace car-
tridges is dependent on your feedwater characteristics,
your purity requirements, and your daily usage. Replace
the cartridges when the product water purity drops below
acceptable levels of resistivity or when organic levels
become too high.
NOTE: Be sure the RO tank is full prior to cartridge
replacement and rinse-up.
1. Turn off the EASYpure R
O
D
I
and depressurize
system by opening draw-off valve and allowing
water to drain from the unit.
2. Remove the 0.2 micron final filter from the draw-
off valve.
3. Open the cartridge access door in the rear of
the unit by pushing back the door latch.
4. Remove the cartridge in position 2 by pulling the
cartridge straight up until the upper socket is in
the keyhole of the keyway. Next pull the car-
tridge straight out. Be sure to remove and
replace one cartridge at a time to avoid draining
UV chamber.
5. Remove a new EASYpure Ultrapure cartridge
(Catalog No. D50233) from its plastic bag.
6. Wet the o-rings with water on both end caps.
7. Press the upper end cap into position 2 until it
bottoms out. Refer to Fig. 7 if needed.
8. Lower the cartridge and insert the lower end cap
into the lower socket until it is firmly seated.
9. Repeat steps 3-7 with the EASYpure High
Purity/Low TOC (Catalog No. D50229) cartridge,
placing it in position 3.
M
AINTENANCE AND
S
ERVICING
Note
Remember, used cartridges can be
recycled; See P.U.R.E. information
packed with your new cartridges.
Warning
Do not operate unit with door open.
Inlet pressure may force RO prefilter
out of position.
