12
Resin
Support Bed
Gravel
d)
Apply the supplied lubricant (silicone grease part #92360) to the internal o-ring at the bottom of the control
valve. Attach the upper cone to the control valve. Apply lubricant to larger o-ring on the bottom of the valve that
seals with the tank threads.
e)
Remove tape from top of riser tube. Carefully position valve over riser tube, inserting riser into the internal o-ring.
Turn the valve onto the threads of the tank until secure.
Note: Make sure the quick connect power cord is
not yet connected to prevent the cord getting caught between the threads of the tank and valve
.
Internal O-ring
Tank Seal O-ring
d
e
CAUTION:
Make sure the power cord of the
valve doesnt get caught between the threads
D-Tube
Unscrew Spill Cap
Upper Cone
Plug
the
Riser
Tube
Cone
The riser
(distributor)
remains inside the
tank seated in the
depression at the
bottom
If required item
number to order a
funnel is 99003
a)
Temporarily plug the open end at the top of the
riser (distribution) tube with tape.
b)
Ensure the bottom of the riser tube remains
seated in the depression at the bottom of
the tank. Fill tank one quarter full of water
to protect distribution tube during gravel
installation.
c)
“Fill the gravel support bed first. A large
funnel (sold separately part #99003) makes
filling the tank much easier. Tip: You can make
a funnel using a 1 gallon (4 litre) container by
cutting the bottom off. Slowly add the gravel
and level it by shaking the tank. Depending
on the type of system, add the resin or media
next, leveling it in the same manner.
a
b
c
PREPARATIONS
Media Installation (When Necessary).
The 485HE-300 comes unloaded, media is shipped with separate media in pails or boxes.
Models lower than 2 CF of media come loaded with media and this step can be skipped for new installation.
CAUTION!
The unit should be
depressurized before
installing or replacing media
CAUTION!
Make sure that the
unit is de-pressurized
before conducting
this task.
CAUTION!
DO NOT use
petroleum based
lubricants as they
will cause swelling of
O-ring seals.
