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©2010 Hunter Fan Co.
41773-01 20100609
CHangIng THe Pre-fIlTer
When the Pre-Filter exceeds 1400 hours
(refer to Filter Life Counters for additional
information), the Pre-Filter Life Counter will
display 0% life remaining and the Pre-Filter
indicator will flash as a reminder that you
should replace the pre-filter. To maintain
proper odor-removing capability and overall
filtration performance, the pre-filter should be
changed every 1400 hours (approximately 3
months of use). If necessary, the pre-filter can
be changed more often. Proper maintenance
of the pre-filter will help extend the life of the
HEPAtech™ filter.
1. First, turn off and unplug the air purifier.
2. Next, remove the front grill. Place your
fingers in the recesses on either side of the
top of the grill and pull firmly.
3. The pre-filter is attached to the inside of the
grill with hook tape. Pull gently on the pre-
filter to remove it.
4. If needed, use a soft damp cloth to wipe off
the grill.
5. Install the new pre-filter by placing it in
the grill and pressing gently on the pre-filter
so that it adheres to the hook tape. You
may notice a few black particles coming off
the pre-filter. Those particles are part of the
odor-removing activated carbon and will be
collected on the filter during regular use.
6. Install the grill back onto the unit. First, line
up the tabs on the bottom of the grill with
the openings on the purifier base and then
push the top of the grill forward until it is
closed.
7. Plug in the air purifier.
NOTE:
This unit will not operate unless the
grill is in the correct position.
8. Finally, reset the Pre-Filter Counter by
pressing the PRE-FILTER RESET key
for 2 seconds. The Pre-Filter Counter will
return to 100% and the Pre-Filter indicator
will stop flashing.
loCkIng THe aIr PurIfIer
Once you enter the desired speed, you may
want to lock the keypad to prevent accidental
changing of the speed. When the keypad is
locked, all keys will be disabled. If you press
a key, the Keypad Locked Indicator will be
displayed on the screen for 1-2 seconds.
1. To lock the keypad, press and hold the
UP/DOWN keys simultaneously for 2-3
seconds. The Keypad Locked Indicator
will appear on the display. Refer to Figure
4. After releasing the keys, the Keypad
Locked Indicator will disappear.
Figure 4.
fIlTer rePlaCemenT
The pre-filter and filter are critical to the
proper operation of the air purifier. To help
you know when to change the filters, your
Hunter Air Purifier has Filter Life Counters that
will monitor the percentage of life your filter
has left. Although the exact life of the filters
depends on the environment, the table below
gives typical usage times of the filters.
Filter Type
Typical Usage
Carbon Pre-Filter
1400 Hours
HEPAtech™ Filter
2800 Hours
The display shows the percentage of life left
since the counter was reset.
NOTE:
The percentage level drops in 5%
increments.
The values of the Pre-Filter and Filter Life
Counters are stored in the air purifier’s
memory.
Note:
The unit may be unplugged and moved
or stored without losing the Pre-Filter and
Filter Counter values.
To properly track filter usage, the Pre-Filter
and Filter Life Counters should be reset each
time the filters are changed.
