77
Table 4-2 (Continued)
90 through 130 Ton Component Static Pressure Drops (Inches W.C.)
Econ.
CFM Perm Bag Cartridge Std With Or
Nom ST
SEHF/G Std. High Wire And And Roof Without
Tons AI
Wet Dry Wet Dry Low High All KW's Low High Low High Fiber Effic. Mesh Prefilter Prefilter Curb Exh. Fan
27,000 .40 .31 .67 .51 N/A .25 .13 .26 .31 .22 .32 .11 .13 N/A .68 .65 —— .20
32,000 .53 .41 .89 .68 N/A .31 .16 .35 .41 .30 .43 .14 .16 N/A .84 .84 .31
90
37,000 .67 .52 1.12 .86 N/A .39 .23 .45 .52 .40 .55 .17 .19 N/A 1.02 1.04 .41
42,000 .82 .63 1.36 1.06 N/A .46 .29 .56 .65 .50 .68 .21 .22 N/A 1.19 1.06 .52
45,000 .92 .71 1.53 1.19 N/A .52 .32 .63 .73 .58 .76 .24 .24 N/A —— —— .63
31,000 .56 .45 .84 .64 N/A .28 .17 .33 .39 .29 .40 N/A .13 N/A .82 .80 —— .22
35,000 .68 .54 1.02 .78 N/A .36 .21 .41 .48 .36 .50 N/A .16 N/A .96 .96 .32
105
39,000 .81 .65 1.21 .94 N/A .42 .26 .49 .57 .44 .60 N/A .19 N/A 1.09 1.12 .44
43,000 .94 .76 1.42 1.10 N/A .45 .30 .57 .66 .53 .71 N/A .22 N/A 1.22 1.30 .54
46,000 1.05 .84 1.58 1.23 N/A .55 .34 .65 .75 .61 .79 N/A .24 N/A —— —— .64
31,000 .84 .64 N/A N/A N/A .28 .17 .33 .39 .29 .40 N/A .13 N/A .82 .80 —— .22
115/
35,000 1.03 .79 N/A N/A N/A .36 .21 .41 .48 .36 .50 N/A .16 N/A .96 .96 .32
130
39,000 1.21 .94 N/A N/A N/A .42 .26 .49 .57 .44 .60 N/A .19 N/A 1.09 1.12 .44
43,000 1.421.10 N/A N/A N/A .45 .30 .57 .66 .53 .71 N/A .22 N/A 1.22 1.30 .54
46,000 1.581.23 N/A N/A N/A .55 .34 .65 .75 .61 .79 N/A .24 N/A 0 0 .64
Notes:
1. Static pressure drops of accessory components must be added to external static pressure to enter fan selection tables.
2. Gas heat section maximum temperature rise of 60 F.
3. Throwaway filter option limited to 300 ft/min face velocity.
4. Bag filter option limited to 740 ft/min face velocity.
5. Horizontal roof curbs assume 0.50" static pressure drop or double the standard roof curb pressure drop, whichever is greater.
6. No additional pressure loss for model SXHF.
7. 90 - 130 ton roof curbs adds no pressure drop.
Std. Capacity
Evaporator Coil
SFHF/G
High
SLHF/G SSHF/G
Throwawa
Filte r sHeating System
Table 4-3
90 through 130 Ton 100% Modulating Exhaust Fan Performance
ST
Negative Static Pressure
AI
0.25" W.G. 0.50" W.G. 0.75" W.G. 1.00" W.G. 1.25" W.G. 1.50" W.G
CFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
24,000
477 7.04 513 7.95 561 9.29 604 10.66 648 12.15 693 13.83
27,000
530 9.80 558 10.69 597 11.99 639 13.54 677 15.08 716 16.73
30,000
584 13.24 608 14.16 637 15.34 675 16.96 712 18.67 746 20.38
33,000
638 17.42 659 18.39 683 19.53 713 21.02 749 22.88 781 24.75
36,000
693 22.42 711 23.46 732 24.61 756 25.99 786 27.75 818 29.80
40,000
766 30.50 782 31.62 800 32.83 819 34.17 841 35.75 868 37.69
ST
Negative Static Pressure
AI
1.75" W.G. 2.00" W.G. 2.25" W.G. 2.50" W.G.
CFM RPM BHP RPM BHP RPM BHP RPM BHP
24,000
737 15.66 781 17.54 823 19.45 862 21.42
27,000
756 18.53 796 20.51 835 22.59 874 24.71
30,000
781 22.18 817 24.10 853 26.19 889 28.42
33,000
812 26.63 844 28.57 877 30.61 910 32.79
36,000
848 31.85 877 33.89 905 35.98 935 38.14
40,000
897 39.94 926 42.24 952 44.50 977 46.77
Note:
Blocked areas identif
non-standard drive selections.
