Honeywell 11255 - Manual (Page 68)

68
Performance values stated may be averages typical of the products listed. Contact factory for actual performance test
reports on specific products.
How to Select a Precision Pak Filter
• Determine the ASHRAE efficiency desired.
• Determine the face velocity needed to fit the system
• Select the shortest depth possible with a pressure drop that is acceptable
• Select the most economical filter based on the number of pockets per 24” x 24” size.
Nom.
Width
(inch)
Nom.
Height
(inch)
85% Synthetic Media
Nominal
Depth
(inch)
Number
of
Pockets
24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12 24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
375 fpm 500 fpm 625 fpm
cfm PD cfm PD cfm PD
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
0.30
0.30
0.32
0.32
0.24
0.24
0.22
0.22
0.30
0.30
0.22
0.22
0.20
0.20
0.27
0.27
0.20
0.20 2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
0.44
0.44
0.47
0.47
0.36
0.36
0.34
0.34
0.42
0.42
0.33
0.33
0.31
0.31
0.38
0.38
0.30
0.30 2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250 0.59
0.59
0.63
0.63
0.51
0.51
0.48
0.48
0.57
0.57
0.46
0.46
0.43
0.43
0.51
0.51
0.41
0.41
Media
Area
(sq. ft)
65
33
48
24
64
32
79
40
65
33
87
43
108
54
78
39
104
52
15
15
22
22
22
22
22
22
30
30
30
30
30
30
36
36
36
36 12
6
6
3
8
4
10
5
6
3
8
4
10
5
6
3
8
4
95% Synthetic Media
Nominal
Depth
(inch)
Number
of
Pockets
Nom.
Width
(inch)
Nom.
Height
(inch)
24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12 24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
375 fpm 500 fpm 625 fpm
cfm PD cfm PD cfm PD
Media
Area
(sq. ft)
65
33
48
24
64
32
79
40
65
33
87
43
108
54
78
39
104
52
15
15
22
22
22
22
22
22
30
30
30
30
30
30
36
36
36
36 12
6
6
3
8
4
10
5
6
3
8
4
10
5
6
3
8
4
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
0.40
0.40
0.42
0.42
0.36
0.36
0.34
0.34
0.36
0.36
0.25
0.25
0.24
0.24
0.32
0.32
0.23
0.23 2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000 0.55
0.55
0.60
0.60
0.51
0.51
0.48
0.48
0.52
0.52
0.37
0.37
0.35
0.35
0.47
0.47
0.33
0.33 2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250 0.75
0.75
0.79
0.79
0.67
0.67
0.64
0.64
0.73
0.73
0.52
0.52
0.49
0.49
0.66
0.66
0.47
0.47
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