Grain Systems Bin Accessories PNEG-318 - Manual (Page 12)

2. General Foundation Requirements for GSI Bins
12 PNEG-318 Concrete Foundation Recommendations for GSI Grain Bins
Centrifugal Fan Pad
1. Fan pad should be poured 2" below the top of the bin foundation for all centrifugal fans.
2. A pad for heaters is not required, but is recommended.
3. Recommended pad thickness is 4".
4. If a downwind heater pad is to be installed, the pad width (“C”) should be 48" and extended toward
the bin by 33".
5. Fan discharge should be centered on centerline of bin.
6. The fan pad should be perpendicular to bin wall.
Figure 2E Centrifugal Fan Pad
CAUTION
Fan pad and fan must be level and smooth for proper operation. Vibration
problems can result from improper fan leveling.
Front of pad should be perpendicular to bin wall. Recommended thickness for fan pad is
4" minimum. Surface of pad should be 2" below the bin foundation. Pad for heater not required.
TR-4734
A = 20" without heater
A = 44" with heater
B = 10"
C = 40"
D = 40"
TR-7048
A = 45" without heater
A = 69" with heater
B = 10"
C = 40"
D = 48"
TR-6918 and
TR-6919
A = 32" without heater
A = 65" with heater
B = 13"
C = 48"
D = 52"
TR-7049
A = 45" without heater
A = 78" with heater
B = 13"
C = 48"
D = 52"
TR-6207
A = 42" without heater
A = 78" with heater
B = 13"
C = 48"
D = 60"
TR-6958
A = 55" without heater
A = 85" with heater
B = 13"
C = 48"
D = 60"
TR-6853 (Double inlet)
A = 54" without heater
A = 88" with heater
B = 28"
C = 100"
D = 60"
TR-4013
A = 36" without heater
B = 13"
C = 48"
D = 60"
TR-6944
A = 48" without heater
B = 13"
C = 48"
D = 60"