Operating instructions

4 Pub. No. 18-HE56D1-9
Installer's Guide
B. APPLICATION INFORMATION
NOTE: Do NOT install the air filter in the discharge air
stream of either the heating or cooling unit.
This air cleaner cabinet must be mounted in the return air duct
of a central forced-air furnace/air handler.
Select a location that meets the following:
1. The face of the cell must be at a right angle to the air
stream.
2. Allow a minimum of 28 inches clearance in front of the air
cleaner to permit removal of cells and Pre-Filter.
3.
Flow-through Bypass Humidifiers
Excessive bypass air may cause water blow-off, which will
adversely affect system operation and air cleaner perfor-
mance. To verify bypass airflow, follow the Bypass
Humidifier Pre-Installation Checkout and Set-Up Proce-
dures available through your local distributor. Ask for
publication number 18-CH37D1-1.
Steam and Flow-through Fan Power Duct-mounted
Humidifiers
Follow the humidifier installation instructions. These
should only be installed on the supply air side of the
system.
Other Duct Mounted Humidifiers
Not recommended for installation with the air cleaner.
▲
CAUTION
!
Do NOT operate the air cleaner during construction or
remodeling of a home. The air cleaner is designed for use in
normal living conditions to capture small particles. The
volume of dust and condensate in the presence of chlorides
and fluorides from paint, varnish, stains, adhesives, clean-
ing compounds, and cement creates a corrosive condition
which may cause rapid deterioration of the cabinet and
internal components of the air cleaner and the air handler/
furnace.
Do NOT install air cleaner where the filter can be exposed to
UV light. UV light can cause the plastic material to deterio-
rate, which may lead to filter damage.
▲
CAUTION
!
Step 1: Review the figures below and determine which
one looks like your application.
Step 2: To prevent racking of the air cleaner, support
duct per the illustration.
A. DUCT SUPPORT INSTALLATION
Figure 2
Figure 3
Figure 4
Joist or Rafter
Supply
Coil
Furnace
R/A Duct
Air
Cleaner
Return Air Duct must
be supported from
building structure to
prevent air cleaner
cabinet deflection.
Use either a support
from the ceiling or
support from the floor.
ONLY
Supply
Plenum
Furnace or
Air Handler
Air
Cleaner
Return
Plenum
Return Air Plenum must
be supported from building
structure to prevent air cleaner
cabinet deflection
Joist or Flooring
▲
▲
CAUTION
!
SAFETY HAZARD
Sharp Edge Hazard. Be careful of sharp edges on equip-
ment or any cuts made on sheet metal while installing or
servicing. Personal injury may result.
Figure 5
Rafter or Joist
Supply
Plenum
Furnace or
Air Handler
Air
Cleaner
Return
Plenum
Return Air Plenum must be
supported from building structure
to prevent air cleaner cabinet deflection
Figure 6 Mounting Location of Air Cleaner
Airflow
Airflow
Left or Right Side Mounting
(Furnace ONLY)
Bottom Return
(Furnace / Air Handler)
Airflow
Top Return
(Furnace / Air Handler)
Furnace
or
air handler
Air Cleaner
Return
Air
Air cleaner cabinet
must align with
furnace or air handler
cabinet to prevent air
cleaner cabinet deflection