CARNES VFBB 설치, 운영 및 유지보수 지침 - 페이지 4
{카테고리_이름} CARNES VFBB에 대한 설치, 운영 및 유지보수 지침을 온라인으로 검색하거나 PDF를 다운로드하세요. CARNES VFBB 8 페이지. Centrifugal fans
페이지 인쇄Wheel-Funnel Overlap
BACKWARD INCLINED
A DIA.
B
C
BC, RTF, TSL & BAF SWSI Wheel Placement
Size 122
135
150
165
A 12.25 13.50 15.00 16.50 18.25 20.00 22.25 24.50 27.00 30.00 33.00
B
0.32 0.34
0.38
0.44 0.56
C* 4.28 4.84
5.38
5.81 6.44
Size 365
402
445
490
A 36.50 40.25 44.50 49.00 54.25 60.00 66.00 73.00 80.75 89.00
B
0.94 1.03
1.13
1.25 1.38
C* 13.03 14.41 15.94 17.53 19.41 21.41 23.56 26.06 28.84 31.81
Use Dimension "B" for positioning wheel on SSI and TSL.
RBO
RBO & RBR Wheel Placement
Size 913
915
917
919
921
923
926
A 13.25 15.25 17.25 19.25 21.25 23.38 26.38 39.38 33.63 37.50 41.50 45.50
B
0.53 0.56
0.59
0.69 0.78
0.88
0.75
C* 0.88 1.16
1.31
1.44 0.88
0.94
1.19
NOTE: On sizes 905-911 wheel is to be centered in housing.
A
B
SWSI
FC & Air Kit Wheel Placement
Size 10.5
12
15
18
21
24
A
0.47 0.25
0.44
0.50 0.69
0.81
B
0.69 1.68
2.19
2.25 2.88
3.00
NOTE: For oven applications, position DWDI Air Kit wheel so that it is centered at operating condition.
4
HIB & TRF
Wheel Placement
Size
A
180
20.50
200
22.50
220
25.00
240
27.50
270
30.38
300
33.50
330
37.00
360
41.00
400
46.25
450
50.00
490
56.13
540
61.00
600
67.50
660
74.25
730
82.00
800
90.75
182
200
222
245
270
0.63
0.69
0.75
0.88
7.00
7.84
8.63
9.47
542
600
660
730
807
1.56
1.69
1.88
2.09
RBO & RBR
B
B
A
A
C
C
RBR
954
929
933
937
941
945
949
SD
49.50 54.63 54.63 60.63
0.81
0.97
1.13 1.31
1.44
1.59
1.63
1.22
1.38
1.56 1.69
1.88
1.97
2.25
FC & AIR KIT
A
A
B
B
DWDI
27
30
33
36
39
42
0.69
0.75
0.81
0.75 1.06
1.69
3.13
4.38
5.00
5.00 6.38
7.50
Figure 6
FAN OPERATION - SAFETY
For general safety practices for air moving equipment, see
AMCA Bulletin 410 (Contact Carnes for your free copy).
B
C
0.31
5.31
0.34
5.88
CARNES has many safety accessories available. These
0.38
6.47
safety devices include (but are not limited to) belt guards,
0.44
7.13
shaft guards, inlet and discharge screens. The use, abuse,
0.47
7.91
0.50
8.72
or non-use of safety devices is the responsibility of the pur-
0.56
9.59
chaser.
0.63
10.63
0.69
11.75
0.75
12.07
Facility related safety conditions include fans accessibility
0.81
14.31
and location. How easily can non-service personnel access
0.91
15.84
1.00
17.58
the unit? Is the fan in a hazardous duty environment? Was
1.13
10.56
the unit ordered for this duty? Other concerns must also be
1.22
21.56
addressed. All fans should be powered through switches
0.34
23.56
which are easily accessible to service personnel from the
fan. Every switch should have the ability to be "locked-off" by
300
330
the service person and the key to be retained by this person
to prevent accidental power of the fan while service is in
0.97 1.06
process.
10.56 11.63
890
FAN OPERATION CHECKLIST
1. Proper safety precautions have been followed.
2.28
2. All electrical power is locked off.
3. Fan mechanical components are ready.
a. Nuts, bolts and set screws are tight.
b. System connections are properly made and tight-
ened.
c. Bearings are properly lubricated.
d. Wheel, drives and fan interior are clean and free of
debris.
e. Rotate the impeller by hand to verify it has not
shifted in transit.
f. Drives on correct shafts.
4. Fan electrical components are ready.
a. Motor is wired for proper supply voltage.
b. Motor was properly sized for power and rotational
inertia of rotating assembly.
954
960
c. Motor is properly grounded.
HD
d. All leads are properly insulated.
1.56
1.84
2.25
2.56
5. Trial "bump":
a. Turn on power just long enough to start assembly
rotating.
b. Check for rotation. Is the direction of rotation correct?
Does the assembly make any unusual noise?
BACKWARD INCLINED
(BI) WHEELS
48
54
1.50
1.00
FORWARD CURVED
7.13
10.50
(FC) WHEELS
ROTATION
AIRFOIL (BIAF) WHEELS
RADIAL TIP WHEELS
BACKWARD CURVED
(BC) WHEELS
BACKWARD INCLINED
(BI) WHEELS
Figure 7