12
18-CD37D1-2-EN
Installer’s Guide
Blower Door Hinge and Bottom Filter Rack Installation
Figure 14
Filter Rack Assembly
Figure 15
VIEW
PRE-DRILL
Two clearance holes with a
3/16” drill at dimple locations
(one per side)
Blower Deck
Engagement
Hole
Figure 16
Filter
Rack
Furnace
Cabinet
Side
Filter Rack
Retaining
Screw/Pin
Engagement Hole
For
Bottom Return
(Pre-drill 3/16” diameter
clearance holes)
Filter Rack
Installation With
Figure 17
Airflow
ALTERNATE FILTER RACK INSTALLATION FOR BOTTOM
RETURN - BAYRACK960
The following checklist should be used when installing as a
bottom return filter on an upflow furnace:
a. Remove the filter.
b. Remove the bottom panel.
c. Pre-drill two engagement holes with 3/16" drill at dimple
locations. See Figure 16.
d. With the filter removed, the filter rack is compressed
and then inserted into the bottom of the furnace. The
retaining screw/pin on each side inserts into engage-
ment holes at the bottom of the furnace cabinet side. See
Figure 17.
e. Reinstall the furnace filter in the bottom position by
inserting the chamfer end first into the filter rack.
ALTERNATE FILTER RACK INSTALLATION FOR SIDE
RETURN AIR ON UPFLOW FURNACES (Left or Right) -
BAYRACK960
The following checklist should be used when installing a right
or left side return filter on an upflow furnace:
a. Remove the filter.
b. Leave the bottom panel in place.
c. Make side cutout by following the directions in the
“Return Air Duct Connections” section on page 11.
d. Compress the filter rack and reinstall in the side
position on the furnace. Confirm that the upper
retaining pin/screw locks into the engagement hole in
the blower deck and the lower pin/screw rests against
the side of the bottom panel. See Figures 16, 18-21.
e. Reinstall the furnace filter in the side position by
inserting the chamfer end first into the filter rack.
Conversion kits for horizontal filters are BAYFLTR203 for 17
1/2" width cabinets, BAYFLTR204 for 21" width cabinets, and
BAYFLTR205 for 24" width cabinets. These include filters and
brackets necessary for horizontal filters. See Figure 25.
The furnace and the bottom filter rack, BAYRACK960, installa-
tion can be seen in Figure 14.
