76
Table 4-2
20 through 75 Ton Component Static Pressure Drops (Inches W.C.)
Econ.
CFM Perm Bag Cartridge Std With Or
Nom ST
SEHF/
Std. High Wire And And Roof Without
Tons AIR Wet Dr
Wet Dr
Low High All KW's Low High Low High Fiber Effic. Mesh Prefilter Prefilter Curb Exh. Fan
4,000 .07 .05 .14 .10 .02 N/A .02 .05 .06 .02 .06 .03 .03 .01 .3 .24 .01 .03
6,000 .13 .10 .27 .20 .05 .05 .04 .09 .12 .05 .12 .06 .06 .02 .5 .44 .02 .06
20
8,000 .21 .16 .43 .32 .09 .09 .07 .15 .19 .10 .20 .09 .09 .03 .71 .68 .05 .12
9,000 .26 .20 .52 .39 .12 .12 .09 .19 .24 .12 .22 .11 .11 .04 .83 .81 .07 .15
10,000 .31 .23 .61 .46 .14 .15 .11 .23 .28 .15 .29 .13 .13 .05 .95 .95 .10 .19
12,000 .41 .31 .82 .63 .20 .22 .17 .33 .40 .22 .42 .15 .15 .06 1.19 1.26 .14 .27
5,000 .10 .07 .20 .15 .03 N/A .03 .07 .09 .04 .09 .05 .05 .02 .40 .34 .01 .03
6,000 .13 .10 .27 .20 —— .05 —— —— —— —— —— —— —— —— .50 .44 —— ——
7,500 .19 .15 .39 .29 .08 .08 .06 .14 .17 .09 .18 .09 .09 .03 .66 .62 .04 .10
25
10,000 .31 .23 .61 .46 .14 .15 .11 .23 .28 .15 .29 .13 .13 .05 .95 .95 .10 .19
11,000 .36 .27 .71 .54 .17 .18 .13 .29 .33 .19 .35 .15 .15 .06 1.06 1.11 .12 .23
12,500 .44 .34 .87 .67 .22 .23 .18 .33 .42 .24 .42 .19 .19 .08 1.29 1.34 .19 .30
14,000 .52 .40 1.05 .81 .28 .29 .21 .41 .53 .30 .53 .24 .24 .10 —— —— .24 .39
6,000 .15 .11 .20 .15 .05 .05 .04 .09 .12 .05 .12 .04 .04 .01 .34 .26 .02 .06
9,000 .29 .22 .39 .29 .11 .12 .09 .19 .24 .12 .22 .07 .17 .02 .54 .48 .07 .15
30
12,000 .46 .35 .61 .46 .20 .21 .16 .31 .39 .22 .41 .11 .11 .04 .75 .75 .16 .27
14,000 .59 .45 .78 .60 .26 .29 .22 .40 .51 .30 .50 .14 .14 .06 .95 .95 .25 .39
15,000 .65 .50 .87 .67 .30 .33 .25 .45 .57 .33 .52 .16 .16 .07 1.03 1.06 .30 .43
17,000 .80 .62 1.06 .82 .39 .42 .35 .58 .73 .42 .67 .21 .21 .09 1.20 1.30 .39 .59
8,000 .10 .07 .20 .15 .09 N/A .07 .09 .11 .05 .11 .04 .04 .02 .37 .31 .01 .03
10,000 .14 .11 .29 .21 —— .11 —— —— —— —— —— —— —— —— .49 .43 —— ——
12,000 .19 .14 .39 .29 .20 .15 .16 .17 .22 .11 .21 .08 .08 .03 .61 .56 .04 .07
40
16,000 .31 .23 .61 .46 .34 .26 .29 .28 .36 .20 .36 .12 .12 .05 .88 .87 .10 .09
17,000 .34 .26 .67 .51 N/
.29 .32 .31 .39 .22 .41 .13 .13 .06 .95 .95 .12 .11
20,000 .44 .34 .87 .67 N/
.41 .44 .42 .52 .30 .51 .17 .17 .08 1.17 1.22 .19 .17
22,000 .51 .39 1.02 .79 N/
.50 .53 .51 .63 .36 .62 .21 .21 .10 —— —— .23 .20
10,000 .17 .13 .23 .17 .12 .10 .11 .13 .16 .07 .15 .04 .04 .01 .37 .30 .03 .05
14,000 .29 .22 .39 .29 .26 .20 .22 .22 .28 .15 .28 .07 .07 .03 .56 .50 .07 .08
50/5
17,000 .39 .30 .53 .40 .39 .29 .32 .31 .40 .22 .41 .10 .10 .04 .72 .68 .12 .11
20,000 .51 .39 .68 .52 .58 .41 .44 .42 .52 .30 .51 .12 .12 .05 .88 .88 .19 .17
24,000 .69 .53 .91 .70 .73 .58 .62 .48 .72 .45 .75 .16 .16 .07 1.11 1.17 .30 .23
28,000 .88 .68 1.17 .91 .99 .79 .84 .62 .98 .61 .99 .20 .20 .10 —— —— .39 .30
12,000 .13 .10 .25 .18 .10 .08 .16 .10 .13 .06 .11 .05 .05 .01 .44 .37 .02 .07
16,000 .20 .16 .39 .29 .18 .14 .29 .17 .21 .11 .19 .07 .07 .02 .63 .58 .05 .10
60
20,000 .29 .23 .55 .42 .27 .21 .44 .24 .31 .16 .27 .10 .10 .03 .84 .82 .10 .16
24,000 .39 .31 .74 .57 .40 .30 .62 .33 .42 .22 .39 .11 .11 .04 1.06 1.08 .16 .23
28,000 .50 .39 .95 .73 .48 .33 .85 .44 .55 .32 .50 .17 .17 .06 —— —— .30 .30
30,000 .56 .44 1.06 .82 .62 .38 .98 .51 .63 .37 .57 .20 .20 .07 —— —— .34 .34
12,000 .20 .16 N/
N/
.10 .08 .16 .10 .13 .06 .11 .05 .05 .01 .44 .37 .02 .07
16,000 .32 .26 N/
N/
.18 .14 .29 .17 .21 .11 .19 .07 .07 .02 .63 .58 .05 .10
20,000 .46 .37 N/
N/
.27 .21 .44 .24 .31 .16 .27 .10 .10 .03 .84 .82 .10 .16
22,000 .54 .43 N/
N/
.33 .25 .53 .29 .37 .19 .33 .12 .12 .04 .95 .95 .13 .20
70
24,000 .62 .50 N/
N/
.40 .30 .62 .33 .42 .22 .39 .14 .14 .04 1.06 1.08 .16 .23
26,000 .70 .56 N/
N/
.47 .32 .73 .39 .49 .27 .45 .16 .16 .05 1.17 1.23 .23 .26
28,000 .79 .64 N/
N/
.54 .33 .85 .44 .55 .32 .50 .17 .17 .06 1.22 1.29 .30 .30
31,000 .93 .75 N/
N/
.60 .40 1.04 .49 .61 .39 .55 .21 .21 .07 —— —— .37 .36
33,000 1.03 .83 N/
N/
.65 .46 1.18 .52 .67 .44 .60 .24 .24 .08 —— —— .42 .40
12,000 .25 .18 .31 .23 .10 .08 .16 .10 .13 .06 .11 .05 .05 .01 .44 .37 .02 .07
16,000 .39 .29 .49 .37 .18 .14 .29 .17 .21 .11 .19 .07 .07 .02 .63 .58 .05 .10
20,000 .55 .42 .69 .53 .27 .21 .44 .24 .31 .16 .27 .10 .10 .03 .84 .82 .10 .16
22,000 .65 .49 .81 .62 .33 .25 .53 .29 .37 .19 .33 .12 .12 .04 .95 .95 .13 .20
75
24,000 .74 .57 .93 .71 .40 .30 .62 .33 .42 .22 .39 .14 .14 .04 1.06 1.08 .16 .23
26,000 .84 .65 1.05 .81 .47 .32 .73 .39 .49 .27 .45 .16 .16 .05 1.17 1.23 .23 .26
28,000 .95 .73 1.19 .92 .54 .33 .85 .44 .55 .32 .50 .17 .17 .06 1.22 1.29 .30 .30
31,000 1.12 .87 1.40 1.08 .60 .40 1.04 .49 .61 .39 .55 .21 .21 .07 —— —— .37 .36
33,000 1.24 .96 1.55 1.20 .65 .46 1.18 .52 .67 .44 .60 .24 .24 .08 —— —— .42 .40
Std. Capacity
Evaporator Coil
SFHF/G
High
SLHF/
SSHF/G
Throwawa
FiltersHeating System
