Five Seasons DM900UV-VO-A Owner's Manual page 6

Replacing the HEPA Filter and Prefilter
CAUTION
When replacing the filters wear disposable gloves and
a dust mask.
1. To access the filters, turn the Air Cleaner OFF
at the switch and open the top front door.
2. Carefully remove the filters to avoid spilling of
collected contaminants. Dispose of filters in a
plastic bag and discard with regular household
trash.
3. Remove the plastic from the new filters before
installing. Discard plastic safely. Take care not
to damage the filters. Hold by the filter frame
only.
4. Date the replacement filter in the space
provided.
5. Place the filters in their appropriate track with
the arrows pointing toward the fan.
6. Use genuine replacement filters only. Call the
original installer for parts.
Note: When the filters are new, you may notice a
new smell from the system. This is normal and will
dissipate within a few hours.
Prefilter (#DM900-0855): This must be replaced
every 3-6 months. A clean Prefilter will increase the
life of the HEPA Filter and improve airflow.
HEPA Filter (#DMH4-0400): Replace every 2-3
years. The life of this filter depends on the amount
of contaminants in the air and the frequency in
which the Prefilter has been changed. Renovations
in the home that create wood, drywall dust or
similar contaminants will shorten the life expectancy
of the HEPA filter.
Note: Handle the HEPA filter by the frame only.
The paper is fragile and a puncture or tear will
reduce efficiency.
Replacing the UV Lamps, PCO Filter and Final
Filter
WARNING
Make sure the Air Cleaner is OFF and UNPLUGGED
before opening the lamp access panel.
WARNING
Eye and skin damage may result from direct exposure
to the light produced by the lamp used in this product.
NEVER open the lamp access panel without having
the Air Cleaner unplugged.
Fig. 6 – Lamp Access Panel
When replacing the filters wear disposable gloves and
a dust mask.
1. To change the PCO filter, Final filter and UV
lamps, turn the Air Cleaner OFF and UNPLUG
it. Remove the screws from the lamp access
panel and remove the panel. DO NOT misplace
the parts.
The lamps operate at a very high temperature. Allow
the lamps to cool 10 minutes before touching.
Do not touch the lamp glass with bare hands. Always
use the gloves provided when installing the lamps. The
oil from your hands may reduce the effectiveness of
the lamp. The lamp may be cleaned with a soft cloth
dampened with water only.
2. Carefully remove the filters to avoid dusting of
filter. Dispose of the filters in a plastic bag and
discard with regular household trash.
3. To remove the lamp from the lamp socket, pull
the lamp, by the base, away from the lamp
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CAUTION
CAUTION
CAUTION