Operation - Honeywell F111U Product Data

18. Check operation by turning air cleaner at HIGH,
MEDIUM, and LOW. Note that only the remote switch
will operate the air cleaner.
Lid Assembly
The F111U lid is held in place by two separable hinges, two
spring loaded plungers, and a safety catch. To install the
spring loaded plungers on the lid follow these steps:
1. Pull the plunger back and twist a quarter turn to reveal
the wrench flat on the body of the spring loaded plunger
(see Fig 6.)
2. Turn the threaded barrel out of the spring plunger.
3. Insert the threaded barrel through the hole in the lid and
turn the spring loaded plunger onto it.
4. Tighten the assembly with wrenches.
5. Repeat steps 1 through 4 for the second plunger.
6. Install the lid to the air cleaner, positioning the lid in the
open position and engaging the hinge pins. Then move
the lid to the side to fully engage the hinge pins.
7. To secure lid to air cleaner, slide safety catch to on
position.
8. Swing the lid to the closed position and pull back on the
spring loaded plungers, then releasing to lock them into
place.
9. Verify that the lid is securely attached at the hinge pins
and at the spring loaded plungers.
Fig. 6. Lid assembly.
WARNING
UV Light Hazard.
Accidental exposure to UV light can cause
temporary or permanent loss of vision.
F111U lid is designed to operate an interlock switch to
prevent UV light operation if lid is not correctly
F111U IN-CEILING MEDIA AIR CLEANER WITH ULTRAVIOLET AIR TREATMENT SYSTEM
WRENCH FLAT
THREADED
BARREL
WRENCH
FLAT
SPRING
LOADED
PLUNGER
M11994
installed. Do not attempt to override the interlock
switch.
Opening/Closing the Lid
To open the lid, pull the spring loaded plungers back to
disengage the plunger. Carefully swing the lid open on the
hinges while supporting the filter. To close, swing the lid into
the closed position and engage the plungers.
Removing /Replacing the Lid
IMPORTANT
The lid is heavy. Make sure that it is supported
before removing.
To remove the lid, swing it into the open position. Slide safety
catch to off position. Move the lid to the side to disengage the
hinge pins. Reverse the procedure to replace the lid. Make
sure safety catch is in safe(on) position.

OPERATION

The F111U In-Ceiling Media Air Cleaner has been engineered
to improve indoor air quality for health care, commercial, and
industrial applications. The filters are the most practical and
effective filtering system for removing atmospheric dust,
pollens, bacteria, viruses, mold spores, smoke, and other
airborne contaminants. Refer to Fig. 7.
BLOWER
MOTOR
UV
MODULE
CEILING LINE
CLEAN AIR
DISCHARGE
AIR IN
Fig. 7. F111U Series air cleaner operation.
The air cleaner is either operating (high, medium, or low) or
off. Even when the area is unoccupied, the air cleaner can be
operated continuously to prevent buildup of airborne
contaminants.
The minimum recommended air exchange rate is 2.5 times
per hour. In a heavily contaminated area, up to 15 air
exchanges per hour (for example health care applications)
can be necessary. The factors that determine what the rate of
air exchange should be are:
• generation rates of the various pollutants;
• concentration level of the pollutants;
• desired contamination reduction level.
Airborne contaminants will always be present in the air where
contaminant generations take place. Air cleaning systems and
ventilators do not eliminate airborne contaminants, they
7
AIR VENTS
MODULE
INTAKE
CEILING LINE
PARTICLE FILTER
CLEAN AIR
DISCHARGE
PREFILTER
AIR IN
UV
A12651A
68-0275-2