64
A952V-SVX001-1B-EN
Figure 7. Duct Filter Installation
TTYYPPIICCAALL DDOOWWNNFFLLOOWW FFUURRNNAACCEE RREETTUURRNN AAIIRR
FFIILLTTEERR IINNSSTTAALLLLAATTIIOONNSS
Filters are not factory supplied for downflow furnaces.
Filter size needed will be dependent on type of filter
and CFM requirement. Filters must be installed
externally to the unit.
Table 24. Downflow Return Air Filters
Furnace Width Filter
Qty and Size
17 – 1/2” 2 – 14” x 20” x 1”
21” 2 – 16” x 20” x 1”
24 – 1/2” 2 – 16” x 20” x 1”
RReettuurrnn AAiirr FFiilltteerrss
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