Operation; Service - Honeywell F111U Manual

OPERATION

Airborne contaminants are always present in the air because
they are continually being generated, introduced from outside
sources and redistributed within the space. Air cleaning
systems and ventilators do not eliminate airborne
contaminants, but reduce the excessive accumulation of
contaminants.
Verify F111U Operation
1. Turn on power to the Air Cleaner and check for proper
operation for 2 to 3 minutes.
2. Listen for a smooth, powerful blower sound and air
discharging from both ends of the air cleaner.
3. The installer should verify that the ultraviolet lamps are
operating by viewing the lamp indicator on the lamp
knob.
IMPORTANT
Do not attempt to look directly into the unit to see the
illuminated ultraviolet lamps.

SERVICE

CAUTION
Electrical Hazard.
Can cause personal injury or equipment damage.
Turn off power before installing or servicing the air
cleaner.
NOTE: Be sure to change filters as recommended to prevent
reduced airflow in the air cleaner.
IMPORTANT
Stand on a stable platform when working with the air
cleaner.
NOTE: The high efficiency main filter life ranges from 6 to 24
months but 12 to 24 months is average. More fre-
quent replacement may be necessary in some
installations depending on load.
1. The disposable prefilter collects large dust particulates
and lint type airborne fibers. Check filter every two
weeks to determine frequency of replacement.
2. There is decreased air quality and a pulsing sound
when the filter(s) are loaded with contaminants.
Replace the filter(s) when the pulsing sound is noticed.
3. Even though the lamps will remain illuminated for an
extended period of time, the germidical effect
diminishes with use. Replace the ultraviolet lamps every
12 months to maintain peak performance.
NOTE: Filters must be replaced. Washing, vacuuming and
reverse air blasting are not recommended.
Servicing Filters
1. While supporting the lid, pull out the spring loaded
plungers to release.
2. Open the lid slowly.
F111U IN-CEILING MEDIA AIR CLEANER WITH ULTRAVIOLET AIR TREATMENT SYSTEM
7
3. Remove dirty prefilter.
4. Install new prefilter in air cleaner lid.
5. Inspect the main filter. If replacement is needed, unlatch
and remove the filter.
IMPORTANT
Handle the filter with the frame only to prevent
damage to the media.
6. Insert and latch new main filter into position. Note air
flow direction arrows and install filter with arrows
pointing toward blower motor.
7. Close and latch lid.
Servicing UV Lamps
CAUTION
Breakable Glass Hazard.
Can cause personal injury.
Be careful when inserting lamps(s) into lamp base.
Wear protective gloves when handling lamp(s).
MERCURY NOTICE
This device contains mercury in the sealed ultraviolet
lamps(s). Do not place your used lamp(s) in the trash.
Dispose of properly.
Broken Lamp Cleanup.
Do not use a household vacuum.
Sweep debris into plastic bag and dispose of properly.
Contact your local waste management authority for
instructions regarding recycling and the proper
disposal of old lamp(s).
CAUTION
UV Lamp Burn Hazard.
Harmful to bare skin.
Can cause severe burns.
Allow lamps to cool 15 minutes before servicing.
Replace the lamps every 12 months to maintain peak
performance:
1. Disconnect power to Air Cleaner.
2. Allow lamps to cool for 15 minutes before servicing.
3. Rotate lamp knob counterclockwise and gently pull
knob to remove lamp.
4. Fully insert new lamp into base unit with lamp light
indicator at five o'clock position. Do not touch lamp
surface with your hands.
5. Rotate lamp clockwise until it snaps into place with lamp
indicator light aligned with raised button on unit cover.
6. Connect power to Air Cleaner. Verify that ultraviolet
lamps are operating by viewing lamp indicator on lamp
knob. Do not attempt to look directly into unit to see
illuminated ultraviolet lamps.
NOTE: The lamps are the only field-serviceable parts in the
UV lights.
68-0275EFS-1