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Table 4-2 (Continued)
90 through 130 Ton Component Static Pressure Drops (Inches W.C.)
Evaporator Coil
CFM
High
Nom
STD
Std.
Capacity
Tons
AIR
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
32,000 .53 .41
.89 .68
90 37,000 .67 .52
1.12 .86
42,000 .82 .63
1.36 1.06
45,000 .92 .71
1.53 1.19
31,000 .56 .45
.84 .64
35,000 .68 .54
1.02 .78
105 39,000 .81 .65
1.21 .94
43,000 .94 .76
1.42 1.10
46,000 1.05 .84
1.58 1.23
31,000 .84 .64
N/A N/A
115/ 35,000 1.03 .79
N/A N/A
130 39,000 1.21 .94
N/A N/A
43,000 1.42 1.10 N/A N/A
46,000 1.58 1.23 N/A N/A
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.
Table 4-3
90 through 130 Ton 100% Modulating Exhaust Fan Performance
STD
AIR
0.25" W.G.
CFM
RPM
BHP
24,000
477
7.04
27,000
530
9.80
30,000
584
13.24
33,000
638
17.42
36,000
693
22.42
40,000
766
30.50
STD
AIR
1.75" W.G.
CFM
RPM
BHP
24,000
737
15.66
27,000
756
18.53
30,000
781
22.18
33,000
812
26.63
36,000
848
31.85
40,000
897
39.94
Note: Blocked areas identify non-standard drive selections.
Heating System
SFHF/G
SEHF/G
N/A .25
.13
.26 .31
N/A .31
.16
.35 .41
N/A .39
.23
.45 .52
N/A .46
.29
.56 .65
N/A .52
.32
.63 .73
N/A .28
.17
.33 .39
N/A .36
.21
.41 .48
N/A .42
.26
.49 .57
N/A .45
.30
.57 .66
N/A .55
.34
.65 .75
N/A .28
.17
.33 .39
N/A .36
.21
.41 .48
N/A .42
.26
.49 .57
N/A .45
.30
.57 .66
N/A .55
.34
.65 .75
Negative Static Pressure
0.50" W.G.
0.75" W.G.
RPM
BHP
RPM
BHP
513
7.95
561
9.29
558
10.69
597
11.99
608
14.16
637
15.34
659
18.39
683
19.53
711
23.46
732
24.61
782
31.62
800
32.83
Negative Static Pressure
2.00" W.G.
2.25" W.G.
RPM
BHP
RPM
BHP
781
17.54
823
19.45
796
20.51
835
22.59
817
24.10
853
26.19
844
28.57
877
30.61
877
33.89
905
35.98
926
42.24
952
44.50
Throwaway
SLHF/G
SSHF/G
Std. High Wire
.22 .32
.11
.13
.30 .43
.14
.16
.40 .55
.17
.19
.50 .68
.21
.22
.58 .76
.24
.24
.29 .40
N/A
.13
.36 .50
N/A
.16
.44 .60
N/A
.19
.53 .71
N/A
.22
.61 .79
N/A
.24
.29 .40
N/A
.13
.36 .50
N/A
.16
.44 .60
N/A
.19
.53 .71
N/A
.22
.61 .79
N/A
.24
1.00" W.G.
1.25" W.G.
RPM
BHP
RPM
604
10.66
648
639
13.54
677
675
16.96
712
713
21.02
749
756
25.99
786
819
34.17
841
2.50" W.G.
RPM
BHP
862
21.42
874
24.71
889
28.42
910
32.79
935
38.14
977
46.77
77
Filters
Perm
Bag
Cartridge Std With Or
And
And
N/A
.68
.65
N/A
.84
.84
N/A
1.02
1.04
N/A
1.19
1.06
N/A
——
——
N/A
.82
.80
N/A
.96
.96
N/A
1.09
1.12
N/A
1.22
1.30
N/A
——
——
N/A
.82
.80
N/A
.96
.96
N/A
1.09
1.12
N/A
1.22
1.30
N/A
0
0
1.50" W.G
BHP
RPM
BHP
12.15
693
13.83
15.08
716
16.73
18.67
746
20.38
22.88
781
24.75
27.75
818
29.80
35.75
868
37.69
Econ.
Roof Without
——
.20
.31
.41
.52
.63
——
.22
.32
.44
.54
.64
——
.22
.32
.44
.54
.64
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