Filter Size Information - Bryant 986TB Installation, Start-Up, Operating And Service And Maintenance Instructions

Table 6 – Filter Media Pressure Drop (Clean) Versus Face Velocity− In. W.C. (Pa)
Factory­Accessory
Face Velocity
Washable
FPM (m/s) (1­in. / 2.5 cm)
200 (1) 0.04
300 (1.5) 0.05
400 (2) 0.07
500 (2.5) 0.08
600 (3) 0.09
700 (3.6) 0.10
FURNACE CASING WIDTH
14-3/16{ (360)
17-1/2 (445)
21 (533)
24-1/2 (622)
* Recommended to maintain air filter face velocity. See Product Data for part number.
{ Not all families have these models.
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.
Fiberglass*
(1­in. / 2.5 cm)
(10) 0.05 (13)
(14) 0.09 (22)
(17) 0.13 (32)
(21) 0.18 (44)
(23) 0.23 ­
(26) 0.29 ­
Table 7 – Air Filter Selection and Duct Sizing − In. (mm)
FILTER SIZE
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*or
(610 x 635 x 19) or
(1) 24 x 25 x 4-5/16
(610 x 635 x 110)
Representative After­Market Filter Media*
(2­in. / 5 cm) (1­in. / 2.5 cm)
0.08 (20) 0.18
0.13 (34) 0.30
0.20 (50) ­
0.27 (69) ­
­ ­ ­
­ ­ ­
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)
25
Pleated*
(2­in. / 5 cm)
(47) 0.12 (31)
(75) 0.21 (52)
­ 0.31 (78)
­ ­ ­
­ ­ ­
­ ­ ­
FILTER TYPE
Washable*
Washable*
Washable*
Washable*
FILTER TYPE
Washable or Media*
Washable or Media*
Washable or Media*