MAINTENANCE REMINDERS
CHECK FILTER
After 3,000 hours of cumulative operation, the
maintenance indicator illuminates to remind you
to change the prefiter and activated carbon filter.
You should also check the HEPA fiter with the color
shade indicator on the frame to see if a replacement
is indicated. After performing maintenance,
Press the ”FAN SPEED”and ”IONS” buttons
simultaneously (about 3-5 seconds) until “CL”
appears on the timer display to reset the counter.
Please Note: Whenever the “FAN SPEED” and
“|ONS” buttons are pressed simultaneously, the
counter will be reset. If you do not reset the counter
after checking the filters or forget to check the filter
after 3,000 hours, the Check Filter icon will illumi-
nate after an additional 500 hours (3,500 total
hours) to remind you again.
UV STATUS INDICATOR
When the “UV1 ”or”UV2” icon illuminates, UV Lamp
1 or 2 (as indicated) has failed to operate and
should be replaced.
GENERAL MAINTENANCE
CAUTION!
Disconnectpowercordbeforeservicing
COVER AND HOUSING:
Clean the unit only when necessary. If the unit is
used in a dusty or dirty environment, more frequent
cleaning may be necessary. Remove dirt with a
soft fiber cloth. For tough dirt, a neutral detergent is
recommended.
NOTE: Do not expose the housing to hard
or sharp objects, or abrasives. Handle the front
cover carefully when removing and replacing to
avoid damage.
SENSORS:
Carefully vacuum any dust that has accumulated or
that is blocking the sensor air inlets.
FILTERS:
Filters should be cleaned and replaced regularly as
indicated.
Prefilter:
Wash gently every three months (do not wring out).
Dry on flat surface. Replace after one year.
Compound filter:
Vacuum every three months. Replace after one year.
PLACEMENT OF UNIT
For best efficiency, place the unit on a smooth, hard
floor surface near a cold air return where air flow
will not be obstructed. Suggested locations listed in
the order of preference:
1. Nearest the source of the worst pollution.
2. In the area most heavily used to achieve maxi-
mum benefit.
The sides of the unit should always have at least 16
cm of open area to allow unrestricted airflow.
To prevent damage to the unit, do not block the
openings or cover the top or sides of the unit.
To prevent injury, be sure the power cord is not ac-
cessible to small children.
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