System Maintenance - Change Resin
NOTE: Unger does not recommend the use of bulk resin with nLite HydroPower
systems. The use of bulk resin, with its widely varying properties, may cause
damage to the system due to excessive expansion when water is introduced.
Overfilling the systems will also cause damage.
Unger’s pre-measured QuickChange
TM
Replacement Resin Bags are designed to allow
a controlled resin expansion within a designed safety limit.
1. SHUT OFF DRINKING WATeR SUPPLY VALVe
a. Shut off drinking water supply and open wash pole
tubing discharge line.
b. Disconnect feed drinking water line and allow
system to drain.
2. ReMOVe TOP CAP ASSeMBLY
a. Depress yellow FastLock
TM
Opening lever to
release system pressure.
b. Fix the base of the unit with your feet,
then press the top cap down and with a counter-
clockwise 1/4 turn to release top cap assembly.
Remove and set aside. Tip: Disconnect incoming
water hose and open the on/off valve to allow easy
removal of QuickChange Resin Bags.
c. Reach into housing and remove exhausted resin
bag(s) by hand; discard according to local regulations.
3. RePLACe ReSIN
a. Install new resin bag(s) by hand – be sure to place
bags with zip-tie facing up and sewing parallel to
vessel top edge. Pat down the top of bags by hand
to ensure seated properly.
b. Inspect system head assembly: O-ring and
FloWater
TM
distribution filter are in good condition.
Re-coat o-ring with silicone lubricant only.
c. Re-install DI System head assembly. Secure unit
with your feet, then press down with a 1/4 turn
clockwise.
d. System is ready to be operated.
4. ReCONNeCT WATeRFeD WASH POLe TUBING
a. Turn “ON“ water supply at spigot.
b. Inspect system as it pressurizes.
c. Keep discharge line open and hold down yellow
lever to remove trapped air from system.
5. TeST SYSTeM TDS
1
2
3
4
5
Installation &
Operating Instructions
11
