GETTING
ST
ARTED
Ducting
The Electronic Air Cleaner is adaptable to all new or
existing forced air heating and cooling systems used
in residential applications. Transitions or turning vanes
may be required in some applications for effective air
cleaner operation.
Transitions
For most efficient air cleaning, spread airflow evenly
across the face of the air cleaner. If the duct is a
different size than the electronic air filter cabinet,
gradual transitions are required. Follow these
guidelines when fabricating:
• Use gradual transitions to reduce air turbulence and
increase efficiency.
• Use no more than 20 degrees (about 4 in. per
running ft. (100 mm per 300 linear mm)) of
expansion on each side of a transition fitting.
Turning Vanes
If the Electronic Air Cleaner is installed next to an elbow
or angle fitting, add turning vanes inside the angle to
distribute airflow more evenly across the face of the
cell.
Offsets
If the duct connection to the furnace in a side
installation allows less than 7 in. (178 mm) for mounting
Electronic Air Cleaner cabinet, attach an offset to the
elbow.
M20815
LOCKING
PLIERS
TURNING
VANES
M948B
LESS
THAN
7 in.
(178 mm)
OFFSET
AT LEAST
7 in.
(178 mm)
1
1 REQUIRED TURNING VANES HELP DISTRIBUTE AIRFLOW EVENLY.
20 DEGREE EXPANSION PER SIDE PER
FITTING (4 IN. PER RUNNING FOOT
[100 MM PER 300 LINEAR MM])
RETURN AIR
DUCT
TRANSITION FITTING
ELECTRONIC AIR CLEANER CABINET
M947B
DUCT SIZE CHANGED GRADUALLY TO PREVENT TURBULENCE.
F300 Elec
t
ronic Air Cleaner 68-0240EF—07
5
68-0240EF_B.indd 5
9/14/11 3:04 PM
