Filter Size Information - Carrier 120 Series Operating Instructions Manual

Table 6 – Filter Media Pressure Drop (Clean) Versus Face Velocity- - In. W.C. (Pa)
Factory-Accessory
Face Velocity
Washable
FPM (m/s) (1-in. / 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
17---1/2 (445)
21 (533)
24---1/2 (622)
* 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.
Fiberglass*
(1-in. / 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)
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 After-Market Filter Media*
(2-in. / 5 cm) (1-in. / 2.5 cm)
0.08 (20) 0.18
0.13 (34) 0.30
0.20 (50) -
0.27 (69) -
- - -
- - -
BOTTOM RETURN
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)
23
Pleated*
(2-in. / 5 cm)
(47) 0.12 (31)
(75) 0.21 (52)
- 0.31 (78)
- - -
- - -
- - -
FILTER TYPE
Washable*
Washable*
Washable*
FILTER TYPE
Washable or Media*
Washable or Media*
Washable or Media*