Millennium MRO-35 - Operation and Maintenance; Normal Operation; Changing Filters

13
When the Faucet is rst opened, expect air
and carbon nes (very ne black powder)
from the In–Line and Activated Carbon Post
Filters to be rinsed out. This is normal for
the rst tank of water or after the Activated
Carbon Post Filters are changed.
SECTION V. OPERATION & MAINTENANCE
A. Normal Operation
1. It is normal for the Total Dissolved Solids
(TDS) of the water to be higher than normal
during the rst 5 gallons of operation; this is
due to the sanitizing solution and the new
Post Filters. After this water is rinsed to drain,
the removal rate should stabilize at a value of
greater than 75%. The optional Water Quality
Monitor was designed to measure water
quality when the R.O. system is making
water. In order to assure you are getting an
accurate reading, empty the holding tank,
wait 15 minutes until the system begins
making water, and then test the TDS with the
monitor.
2. R.O. systems produce drinking water at
relatively slow rates; it can take up to 5 hours
or more to ll the Holding Tank. Normal
operation is to let the Holding Tank ll with
water and then draw water as is needed.
When the pressure in the Holding Tank falls
to a given pressure (as the water is being
used) the Automatic Shut–Off Valve (ASO
Valve) will start water production and the
system will rell the Holding Tank. When the
Holding Tank is full and no water is being
used, the ASO Valve will automatically shut
off the feed water to conserve water. The
more water that is used (up to the capacity
of the system) the better the R.O. system
will function. Other uses for the water are
owers, pets and rinsing glassware.
With each use it is recommended that you
run the faucet for at least 10 seconds prior to
using water. This is especially important if the
system has not been used daily. After periods
of non–use, such as a week of vacation,
it is better to empty the Holding Tank and
allow the system to produce fresh water for
use. If the system is not used for 3–4 weeks
or longer, it is a good idea to resanitize the
system and to change the prelter and post
lters.
B. Changing Filters
THIS R.O. SYSTEM CONTAINS FILTERS
WHICH MUST BE REPLACED AT REGULAR
INTERVALS TO MAINTAIN PROPER
PERFORMANCE. USE ONLY FACTORY
APPROVED FILTERS.
All individuals should take adequate
precautions when changing the lters,
including wearing protective gloves, to avoid
direct contact with the exhausted lters.
The recommended interval for changing the
lters (not the R.O. Membrane) is every 6
to 12 months. Typical T.F.C. Membrane life
expectancy is three years. Local conditions may
dictate more frequent changes.
NOTE: If the R.O. Membrane is to be replaced,
see Sec. IV, F.1–3, for the proper procedure.
Use a drip pan to catch any water that may spill
when the Filter Housings are removed. Refer to
Fig. 1, for component location.
1. Close the Feed Water Saddle Valve by
turning fully clockwise and open the
Dispensing Faucet. Allow the Holding Tank to
empty.
2. Loosen and remove the Sediment/Carbon
Prelter and the Activated Carbon Post Filter
Housings. Discard the lters.
3. Wash the inside of the Housings using a
mild detergent and a soft cloth. Do not use
abrasive cleaners or pads. Thoroughly
rinse all soap from the Housings before
reassembly.
4. To sanitize the system and replace the lters:
NOTE: The system should be sanitized
before installing the Sediment/Carbon
Prelter and Activated Carbon Post Filter.
•Use a good quality unscented 5¼% liquid
chlorine household bleach.
•Add one capful of bleach (this is 2 tsp. or
10 ml) to the Sediment/Carbon Prelter
Housing and temporarily install the Housing
without the Sediment/Carbon Prelter.
Check the Housing O–ring for proper
position in its groove, engage and rmly
tighten the Housing hand tight only.