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4
Timer Installation and Application Instructions
Timer cap
Blue reset button
Timer base
Timer seat
Head
2 AAA
batteries
Timer battery installation and change
Insert coin or screwdriver into the slot between
timer cap and base. Gently pry them open and
separate timer base from cap. Install or change
2 new AAA 1.5-volt batteries. After you have
the batteries in place, line up the base and cap and
snap them back together.
It is recommended to change the batteries at least
every 2 filter changes, or when the blue LED light
seems dim.
Do not mix old and new batteries. Do not mix
alkaline, standard (carbon-zinc) or rechargeable
(ni-cad, ni-mh, etc.) batteries.
Installation of timer
Hold the timer body in the center and gently push
the timer to its seat at the top of the head or
attach it in a remote location for easy viewing.
Timer reset and application
After new batteries are installed or filter is changed,
push and hold the blue timer reset button (hold the
reset button for approximately 5 seconds). Release
the reset button after the light stops flashing. The
timer has been reset. The light will flash again in
90 days to remind you that it is time to change the
filter.
STEP-BY-STEP INSTALLATION INSTRUCTIONS (cont.)
Installing the Ground Wire
NOTE: If your house plumbing is plastic, it would not be used as
a grounding path, and this step should be skipped.
IMPORTANT: A copper or galvanized cold water pipe is often used
to ground electrical outlets in the home. Grounding protects you
from electrical shock. The water filter housing may have broken this
ground path. To restore connection, install a 12s-long,
6-gauge copper wire across the filter, and tightly clamp using
UL-approved 1/2s–1s bronze grounding clamps at both ends as
shown. Zinc clamps should not be used on copper plumbing.
Wire and clamps may be purchased separately from your local
hardware store.
1
Clean copper pipe and ends of wire with emery paper. Bare wire
is recommended. If insulated wire is used, it should be stripped
3/4s at each end before cleaning with emery paper.
2
Attach bronze clamps to copper pipe. Tighten screws.
3
Attach wire to clamps as shown. Tighten screws.
Final Check
1
Install filter, if not already done. (See
Filter Cartridge Replacement
section.)
2
Slowly turn on water supply.
3
Check entire system for leaks.
4
If leaking from fittings, shut off water pressure and tighten or
reseal fittings. If leaking from the canister, tighten the canister
with a wrench.
5
Open any downstream faucet and allow filter and housing to
flush for 30 minutes (120 gallons) (model GXWH20S) or
15 minutes (60 gallons) (model GXWH04F).
Clamp
Ground wire
Installing the Unit
1
Align filter assembly with pipe ends, making certain that the
incoming water supply is going into the filter opening marked
“IN”. It may be necessary to spread the pipe ends apart to install
filter assembly.
2
Using a 1
1
ø8s wrench to hold the fitting in place; use a 1
1
ø4s
wrench to tighten the nut. Repeat process for other fittings.
3
Hang mounting bracket with unit onto previously installed
screws. Drive two screws to secure unit tightly to the wall if
necessary.
4
Install a filter into the housing and tighten canister to seal
(see
Filter Cartridge Replacement
section).
Attach Fittings to Water Line
1
Slip a compression nut onto each pipe.
2
Next, slip the brass ferrule onto each pipe.
Hex nut
Hex nut
Brass ferrule
Brass ferrule
D
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