18-CD29D1-11
13
Installer’s Guide
REAR
SID
E
CUT
-OUT
ALTERNATE FILTER
CLIPS LOCATION
RETURN AIR FILTERS FOR UPFLOW FURNACE
IN HORIZONTAL CONFIGURATION
When the Upflow Furnace is installed in a horizontal
configuration, the filter must never be installed inside or
outside the cabinet directly above the blower assembly.
See Figure 10 (page 11). Remote filter grilles may be used
for homeowner convenience or the filters may be installed
in the duct work upstream of the furnace. See Figures 20
(page 13).
Optional horizontal filter conversion kits 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 20.
ALTERNATE UPFLOW
FILTER CLIP / BRACKET INSTALLATION - KIT09224
1. Determine the location to be used. The furnace cabinet
has dimples for location of the alternate furnace clips
(
Side return only
). Pre-drill clearance holes with a
3/16" drill. Bottom return holes are pre-drilled.
2. Install the clips in front and rear of the desired location
using the screws provided. The filter clip with the leaf
spring mounts in the rear of the cabinet. See Figure21.
a
UNIT
SIZE
RETURN AIR
BOTTOM
SIDE
14-1/2"
CUT ON LINE DO NOT CUT
17-1/2"
DO NOT CUT DO NOT CUT
21"
DO NOT CUT CUT ON LINE
24-1/2"
DO NOT CUT CUT ON LINE
TABLE 7
INSTALLING THE OPTIONAL FILTER
The filter may need to be cut to fit the unit depending on
the location of the return air filter.
A score line and the words “CUT HERE” are located on the
end of the filter. If your application requires cutting the
filter, do so as indicted by the score mark.
Airflo
w
Airflo
w
s
Two high velocity type air filters are required for each down-
flow furnace. Downflow furnace filters must be located
outside the furnace cabinet. Typical installations are shown
in Figures 22 and 23. Tables 8 and 9 provide information
for installation of the filter retaining brackets shipped with
downflow furnaces.
d
TYPICAL DOWNFLOW FURNACE
RETURN AIR FILTER INSTALLATIONS
TABLE 8
TABLE 9
CABINET
WIDTH
RETURN
DUCT
WIDTH
FILTER ACCESS
OPENING - DI-
MENSION "A"
FILTER ACCESS
OPENING -
DIMENSION "B"
14-1/2"
13-1/4"
12"
14"
17-1/2"
16-1/4"
15"
14"
21"
19-3/4"
19-1/2"
14"
24-1/2"
23-1/4"
22"
14"
CABINET
WIDTH
FILTER
SIZE
FILTER BRACKET
LOCATION *
14-1/2"
2 - 14X20X1
12-7/8"
17-1/2"
2 - 16X20X1
14-3/8"
21"
2 - 16X20X1
13-1/8"
24-1/2"
2 - 16X20X1
11-5/8"
* Location dimension is from end of duct to the screw holes for the bracket.
Optional accessory door kit BAYFLTR206 is also available
with narrow door to avoid flue piping in downflow furnaces.
Содержание ADH1B040A9241A
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