Operating instructions

4 Numbers in [brackets] are for 50 Hz international systems. Pub. No. 18-HE53D1-5
Installer’s Guide
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.
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
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
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
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
A. DUCT SUPPORT INSTALLATION
Figure 2 Figure 3
Figure 4 Figure 5