Honeywell enviracaire Elite F300E Product Data page 6

F300E ELECTRONIC AIR CLEANER
A
E
Determine Duct Design Requirements
The air cleaner is adaptable to all new or existing forced air
heating, cooling and ventilating systems used in residential
applications. Transitions, turning vanes, or offsets may be
needed in some applications for effective operation.
Transitions
Transitions are needed when the duct is a different size than
the air cleaner cabinet. Gradual transitions reduce air
turbulence and increase efficiency. Limit expansion to no
more than 20 degrees or about 4 in. per running foot (100
mm per 300 linear mm) on each side of a transition fitting.
See Fig. 4.
CHANGE DUCT SIZE GRADUALLY TO MINIMIZE TURBULENCE.
20 DEGREE EXPANSION PER SIDE PER
FITTING (4 in. PER LINEAR FOOT
[100 mm PER 300 LINEAR mm]).
RETURN
AIR DUCT
TRANSITION FITTING
ELECTRONIC AIR CLEANER CABINET
Fig. 4. Change duct size gradually
to minimize turbulence.
68-0240-1
B
Fig. 3. Mounting positions with variety of furnace installations.
M5626A
C
F
Turning Vanes
If the air cleaner is installed close to an elbow or angle
fitting, install turning vanes inside the angle to distribute
airflow more evenly across the face of the cell. See Fig. 5.
Offsets
If the duct connection to the furnace in a side installation
allows less than 7 in. (178 mm) for mounting the air cleaner
cabinet, add an offset to the elbow. See Fig. 5.
TYPICAL USE OF DUCT OFFSET TO ALLOW
SPACE FOR ELECTRONIC AIR CLEANER.
1 TURNING VANES HELP DISTRIBUTE AIRFLOW EVENLY.
Fig. 5. Typical use of duct offset to allow
space for electronic air cleaner.
6
D
G
M14732A
OFFSET
LESS
THAN
7 in.
(178 mm)
AT LEAST
7 in.
1
(178 mm)
M14733