4 Numbers in [brackets] are for 50 Hz international systems. Pub. No. 18-HE53D1-11
Installer’s Guide
C. DOOR OPERATION
The air cleaner comes with the Power Door installed on the
unit. The Power Door and the internal components will
need to be removed before installation. Follow these
guidelines for removing and reinstalling the door:
REMOVING THE POWER DOOR:
Step 1: To remove the door, hold handles and rotate
latches as shown in Figure 10.
Figure 9 Turning Vanes
4. Install the air cleaner such that the airflow direction
arrow on the cabinet always points towards the fur-
nace/ air handler. See Figure 8.
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 or both
sides of the furnace if two air cleaners are required to
reduce system static.
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 9.
8. Use transition fittings where return air duct dimensions
do not match the air cleaners opening dimensions.
Gradual transitions are preferred for greatest efficiency.
Four inches per linear foot (approximately 20° angle)
should be allowed, space permitting.
9. Seal all joints in the return air system to prevent dust
from entering the air stream.
NOTE: Do NOT use a silicon based sealant. This
causes a coating on the FIELD CHARGER pins that will
decrease the efficiency of the air cleaner.
Figure 8 Airflow Direction
Airflow
Direction Arrow
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-*.
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.
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
!
Airflow
Turning
Vanes
Air Cleaner
Cabinet
CAUTION
!
Handle the door only by using the handles on the
front of the door. Grasp the door by the handles as
depicted in Figure 10 to remove and replace the
door. Do not handle the door on the edges. Metal
edges may be sharp and could result in injury if the
door is not handled properly.
Rotate Latches
Before removing the door from the unit, remove the power
cable plug from the socket located in the corner of the door.
Power cable connection
Figure 10 Rotating Door Latches
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