59SC6A: Installation, Start-up, Operating and Service and Maintenance Instructions
Table 9 – Air Filter Selection and Duct Sizing - In. (mm)
FILTER SIZE
FURNACE
CASING
SIDE
WIDTH
RETURN
16 x 25 x 3/4
14-3/16 (360)
(406 x 635 x 19)
(1) 16 x 25 x 3/4
17-1/2 (445)
(406 x 635 x 19)
(1) 16 x 25 x 3/4
21 (533)
(406 x 635 x 19)
(1) 16 x 25 x 3/4
24-1/2 (622)
(406 x 635 x 19)
*. Filters with a side return-air may have a different filter size. Measure the
filter to obtain the correct size.
Air Filter Located in Filter Cabinet
FILTER
CABINET
FILTER SIZE - IN (MM)
HEIGHT - IN
(MM)
(1) 16 x 25 x 3/4 (406 x 635 x 19) or
16 (406)
(1) 16 x 25 x 4-5/16 (406 x 635 x 110)
(1) 20 x 25 x 3/4* (508 x 635 x 19) or
20 (508)
(1) 20 x 25 x 4-5/16 (508 x 635 x 110)
(1) 24 x 25 x 3/4* (610 x 635 x 19) or
24 (610)
(1) 24 x 25 x 4-5/16 (610 x 635 x 110)
*. Filters with a side return-air may have a different filter size. Measure the
filter to obtain the correct size.
†. Recommended to maintain air filter face velocity. See Product Data for part
number.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
FILTER TYPE
BOTTOM
RETURN
14 x 25 x 3/4
Washable
(356 x 635 x 19)
(1) 16 x 25 x 3/4
Washable
(406 x 635 x 19)
(1) 20 x 25 x 3/4
Washable
(508 x 635 x 19)
(1) 24 x 25 x 3/4
Washable
(610 x 635 x 19)
FILTER
*
†
TYPE
Washable or
Media
Washable or
Media*
Washable or
Media*
*
Fig. 26 – Optional Media Cabinet Accessory
21
A11437