K*
D
E
H
B
2
C
F
J
G
I
J
G
F
I
C
2
A
B
D
E
H
C
A
A
C
BDF
Unit
Access
Panel
Filter
Box
Access
Panel
M*
M*
Upon receiving unit, check for any damage and report it immediately to the shipper. Also check to see that all accessory
items are accounted for.
Move fan to desired location and determine position of access panels and motor. Attach the fan to a suitable framework
as specified (hanging or base vibration isolators are recommended). See chart below for dimensions of vibration isolator
centerlines (Fig. 1). See Fig. 2 and 3 for physical dimensions.
The motor’s amperage and voltage ratings must be checked for compatibility to supply voltage prior to final electrical
connection. Supply wiring may be routed through knockouts which are provided on the top and bottom of each fan housing.
Provide adequate wiring to permit the access doors to open for servicing. Wiring should be secured inside the fan to prevent
interference with the drive components. All wiring must conform to local and national codes.
Inlet and discharge collars are provided for duct connection. The inlet panel is removable for attaching optional filter box
accessory.
VIBRATION ISOLATOR DIMENSIONAL DATA
BDF DIMENSIONAL DATA
Fig. 1
BDF Unit
BDF w/ Filter Box
Fig. 2
Fig. 3
M* applies to optional filter box only.
®
READ AND SAVE THESE INSTRUCTIONS
Model BDF
Belt Drive Duct Fan
PN 458341
Installation, Operation and Maintenance Manual
K* is length of fan and filter box combined.
Unit Size
A
C
M*
80
20
3
/
4
22
11
/
16
26
5
/
16
90
21
3
/
4
25
5
/
8
30
1
/
2
100
23
3
/
4
27
1
/
8
25
2
/
5
120
30
1
/
2
31
5
/
8
30
7
/
16
150
32
35
27
1
/
8
180
37
3
/
8
44
34
15
/
16
200
47
3
/
8
51
1
/
2
36
Unit
Size
A
B
C
D
E
F
G
H
I
J
K*
Filter
Size
Number
of Filters
Material
Thickness (ga.)
Approx. Wt. (lbs)
Fan
Filter Box
80
23
1
/
4
18
1
/
2
15
7
/
8
15
3
/
16
12
11
/
16
9
3
/
4
8
7
/
8
1
5
3
/
8
4
1
/
4
49
3
/
4
16 x 20
2
20
71
32
90
24
1
/
4
21
1
/
4
18
3
/
4
18
1
/
4
15
7
/
8
12
1
/
4
10
1
/
2
1
6
3
/
4
4
1
/
2
54
7
/
8
20 x 25
2
20
92
42
100
26
1
/
4
22
3
/
4
20
3
/
4
19
3
/
4
17
7
/
8
13
3
/
4
11
7
/
8
1
7
3
/
8
4
1
/
2
51
7
/
8
20 x 20
2
20
107
52
120
33
27
1
/
4
22
3
/
4
24
1
/
8
19
7
/
8
16
13
3
/
8
1
7
7
/
8
5
5
/
8
63
9
/
16
12 x 25
4
20
144
70
150
34
3
/
4
32
5
/
8
27
3
/
4
28
5
/
8
23
7
/
8
19
1
/
8
16
3
/
8
1
1
/
2
9
7
/
8
6
3
/
4
62
1
/
16
16 x 20
8
20
223
97
180
40
1
/
4
41
3
/
4
31
3
/
4
37
1
/
2
27
7
/
8
22
1
/
2
18
7
/
8
1
1
/
2
10
1
/
2
9
5
/
8
75
3
/
8
20 x 25
6
20
307
134
200
50
1
/
4
49
1
/
4
39
3
/
4
45
1
/
8
36
23
1
/
8
25
1
/
4
1
1
/
2
12
1
/
2
13
85
1
/
4
16 x 25
12
20
565
174
