912SD: Installation, Start-up, Operating and Service and Maintenance Instructions
FURNACE CASING WIDTH
14-3/16 (360)
17-1/2 (445)
21 (533)
24-1/2 (622)
*. Not all families have these models
†. Recommended to maintain air filter face velocity. See Product Data for part number
FILTER CABINET HEIGHT - IN (MM)
16 (406)
20 (508)
24 (610)
*. 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.
Table 8 – Air Filter Selection and Duct Sizing - In. (mm)
*
SIDE RETURN
16 x 25 x 3/4
(406 x 635 x 19)
16 x 25 x 3/4
(406 x 635 x 19)
16 x 25 x 3/4
(406 x 635 x 19)
16 x 25 x 3/4
(406 x 635 x 19)
Air Filter Located in Filter Cabinet
FILTER SIZE - IN (MM)
(1) 16 x 25 x 3/4 (406 x 635 x 19) or
(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
(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
(1) 24 x 25 x 4-5/16 (610 x 635 x 110)
FILTER SIZE
BOTTOM RETURN
14 x 25 x 3/4
(356 x 635 x 19)
16 x 25 x 3/4
(406 x 635 x 19)
20 x 25 x 3/4
(508 x 635 x 19)
24 x 25 x 3/4
(610 x 635 x 19)
*
20
†
FILTER TYPE
Washable
Washable
Washable
Washable
†
FILTER TYPE
Washable or Media
Washable or Media*
Washable or Media*