18-CD30D1-20-EN
13
Installer’s Guide
installed in the duct work upstream of the furnace. See
Figure 20. Conversion kits for horizontal filter installation
are shown in Table 4A.
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 20.
UPFLOW FILTER CLIP/ BRACKET INSTALLATION
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. Attach
clip to bottom channel and rear of unit with screws
provided for bottom return.
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 Figure 21.
NOTE: Upflow models only - Installation of the
alternate bottom filter kit requires the bottom flange to
be bent flat.
INSTALLING THE 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
Typical Horizontal Filter Installation
Airflow
⑳
BLOWER
DECK
⑱
Filter
Rack
Assembly
Furnace
Blower
Deck
Filter Rack
Retaining
Screw/Pin
Engagement Hole
For
Return
Filter Rack
Installation With
Side
Furnace
Cabinet
Side
⑲
Table 4A CONVERSION KITS FOR
HORIZONTAL FILTERS
MODEL NUMBERS
CABINET
WIDTH
CONVERSION KIT
NUMBER
*UHMB060ACV3VB
*UHMB080ACV3VB
17-1/2"
BAYFLTR203
*UHMC100ACV4VB
21"
BAYFLTR204
*UHMD120ACV5VB
24-1/2"
BAYFLTR205
1. *First letter may be "A" or "T"
2. Kit includes Filters and Brackets necessary for Horizontal Filters.
CHAMFER
END OF
FILTER GOES
INTO FILTER
RACK FIRST
Airflow
SIDE
CUT
-OUT
ALTERNATE SIDE
FILTER CLIPS
LOCATIONS
ALTERNATE BOTTOM
FILTER CLIPS LOCATIONS
Accessory filter kit BAYFLTR203,
204, or 205 used for Upflow
Horizontal furnaces.
cutting the filter, do so as indicted by the score mark.
TABLE 5
UNIT
SIZE
RETURN AIR
BOTTOM
SIDE
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
TYPICAL DOWNFLOW FURNACE RETURN AIR FILTER
INSTALLATIONS
Two filters are factory supplied for each downflow furnace.
These furnaces require high velocity type air filters.
Downflow furnace filters must be located outside the
a