Operating instructions

Pub. No. 18-HE53D1-5 Numbers in [brackets] are for 50 Hz international systems. 5
Installer’s Guide
Figure 8 Turning Vanes
B. APPLICATION INFORMATION
NOTE: Do NOT install the air filter in the discharge air
stream of either the air handler or furnace.
▲
CAUTION
!
Do NOT install air cleaner where the filter can be
exposed to UV light. UV light can cause the plastic
material to deteriorate, which may lead to filter dam-
age.
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
performance. To verify bypass airflow, follow the
Bypass Humidifier Pre-Installation Checkout and Set-
Up Procedures 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.
4. Install the air cleaner such that the airflow direction
arrow on the cabinet always points towards the fur-
nace/ air handler. See Figure 7.
5. The PRE-FILTER must be on the entering airstream
side of the air cleaner cabinet. The mounting flange on
this side of the cabinet has the single row of holes for
attaching ductwork.
6. On side return furnace applications, the air cleaner
may be installed on either side of the cabinet.
Position the PRE-FILTER on the side away from the
furnace. The COLLECTION CELL guide key, installed
in the cabinet will only allow the cells to be installed in
the proper direction. Airflow direction must agree with
airflow arrows on the cabinet.
7. It is recommended that sheet metal turning vanes be
installed inside an elbow on ductwork attached to the
entering airstream side of the air cleaner. This improves
the air distribution over the COLLECTION CELLS. See
Figure 8.
Figure 6 Mounting Location of Air Cleaner
Figure 7 Airflow Direction
Airflow
Airflow
Left or Right Side Mounting
(Furnace ONLY)
Bottom Return
(Furnace / Air Handler)
Airflow
Top Return
(Furnace / Air Handler)
Airflow
Turning
Vanes
Air Cleaner
Cabinet
Airflow
Direction Arrow
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
▲
WARNING
!