Filter options, Model selection procedure – Greenheck Fan Greenheck Centrifugal Inline Fans SQ/BSQ User Manual
Page 9
9
The filter box is designed to provide a compact and convenient clean
air solution. Factory-assembled as a single unit, this fan eliminates
the costly process of designing, fabricating and installing special
remote filter box assemblies. Both the fan and filter section feature
removable access panels on both sides to remove and replace
filters, making fan maintenance simple and fast.
Model
Fan
Size
Filter Box
Weight
Filter Size
Filter
Quantity
Filter Factor (F)
1 inch
(25)
2 inch
(51)
Aluminum
Paper Filters
(MERV 7)
Aluminum
Paper Filters
(MERV 8)
Model SQ
60 - 75
40
(18)
10 x 12
(254 x 305)
1
186
318.06
251.1
303.18
80 - 95
74
(34)
14 x 25
(356 x 635)
1
21.8
37.28
29.43
35.53
100
88
(40)
16 x 20
(406 x 508)
2
8.72
14.91
11.77
14.21
120
114
(52)
16 x 25
(406 x 635)
2
5.58
9.54
7.53
9.10
130
120
(54)
20 x 20
(508 x 508)
2
5.58
9.54
7.53
9.10
140
174
(79)
20 x 25
(508 x 635)
2
3.57
6.11
4.82
5.82
160
246
(112)
20 x 20
(508 x 508)
4
2.09
3.57
2.82
3.41
Model BSQ
70 - 80 - 90
117
(53)
14 x 25
(356 x 635)
1
21.8
37.28
29.43
35.53
100
120
(54)
16 x 20
(406 x 508)
2
8.72
14.91
11.77
14.21
120
144
(79)
16 x 25
(406 x 635)
2
5.58
9.54
7.53
9.10
130 - 130HP
140
(64)
20 x 20
(508 x 508)
2
5.58
9.54
7.53
9.10
140 - 140HP
181
(82)
20 x 25
(508 x 635)
2
3.57
6.11
4.82
5.82
160 - 160HP
294
(133)
20 x 20
(508 x 508)
4
2.09
3.57
2.82
3.41
180 - 180HP
344
(156)
20 x 25
(508 x 635)
4
1.34
2.29
1.81
2.18
200 - 200HP
441
(200)
12 x 25
(305 x 635)
3
0.77
1.32
1.04
1.26
16 x 25
(406 x 635)
3
240 - 240HP
573
(260)
20 x 25
(508 x 635)
4
0.41
0.70
0.55
0.67
16 x 25
(406 x 635)
4
300 - 300HP
759
(344)
20 x 25
(508 x 635)
8
0.33
0.56
0.45
0.54
360 - 360HP
957
(434)
16 x 25
(406 x 635)
10
0.15
0.26
0.20
0.25
20 x 25
(508 x 635)
5
420
1185
(538)
16 x 25
(406 x 635)
5
0.13
0.22
0.18
0.21
20 x 25
(508 x 635)
10
Note: 24-inch side clearance is recommended for accessing and removing filters.
All dimensions in inches (millimeters) and weight in pounds (kilograms).
Filter Options
Model Selection Procedure
1. Calculate system pressure drop and cfm requirements
(not including filters).
2. Make a preliminary model size selection.
3. Calculate a filter pressure drop (P) for the preliminary
model size selected in step 2 using the equation:
P = F
x
(
10,000
)
2
•
To determine the filter factor (F) refer to chart below.
4. Add the filter pressure drop (P) to the system pressure drop and make a revised model size selection.
cfm