Twin City TSL & QSL; Inline Centrifugal and Mixed Flow Fans - ES-895 - Manual (Page 4)

4 Twin City Engineering Supplement 895
Table 2. TSL Wheel-Funnel Overlap
SIZE 402 445 490 542 600 660 730 807 890
A 40.25 44.50 49.00 54.25 60.00 66.00 73.00 80.75 89.00
B 1.03 1.13 1.25 1.38 1.56 1.69 1.88 2.09 2.28
C (CL 1) 16.23 17.92 19.64 21.70 24.08 26.42 29.19 32.30 35.66
C (CL 2) 16.23 17.92 19.64 21.70 24.08 26.42 29.19 32.30 35.66
C (CL 3) 16.30 17.98 19.70 21.83 24.14 26.48 29.25 32.36 35.70
SIZE 122 150 182 200 222 245 270 300 330 365
A 12.25 15.00 18.25 20.00 22.25 24.50 27.00 30.00 33.00 36.50
B 0.31 0.38 0.56 0.63 0.69 0.75 0.88 0.97 1.06 0.94
C (CL 1) 4.69 5.86 7.36 8.00 8.89 9.86 10.91 11.89 13.31 14.72
C (CL 2) 4.72 5.86 7.42 8.06 8.95 9.86 10.91 11.89 13.31 14.72
C (CL 3) — — 7.48 8.13 9.08 9.92 10.97 12.14 13.38 14.78
C
B
A
Note: Use “B” dimension for positioning wheel.
Table 3. QSL Wheel-Funnel Overlap
B
A
C
Note: Use “B” dimension for positioning wheel.
SIZE 150 165 182 200 222 245 270 300 330
A 18.25 20.00 22.25 24.50 27.00 30.00 33.00 36.50 40.25
B 0.56 0.63 0.69 0.75 0.88 0.97 1.06 0.94 1.03
C 6.19 6.75 7.56 8.31 9.13 10.19 11.19 12.38 13.63
SIZE 365 402 445 490 542 600 660 730
A 44.50 49.00 54.25 60.00 66.00 73.00 80.75 89.00
B 1.13 1.25 1.38 1.56 1.69 1.88 2.09 2.28
C 15.13 16.63 18.38 20.25 22.31 24.63 27.25 30.00
Operation Checklist
□ Verify that proper safety precautions have been
followed.
□ Electrical power must be locked off.
Check fan mechanism components:
□ Nuts, bolts, setscrews are tight.
□ Mounting connections are properly made and
tightened.
□ Bearings are properly lubricated.
□ Wheel, drives and fan surfaces are clean and
tightened.
□ Rotating assembly turns freely and does not rub.
□ Drives on correct shafts, properly aligned, and
properly tensioned.
Check fan electrical components:
□ Motor is wired for proper supply voltage.
□ Motor was properly sized for power of rotating
assembly.
□ Motor is properly grounded.
□ All leads are properly insulated.
Trial “bump”:
□ Turn on power just long enough to start assembly
rotating.
□ Check rotation for agreement with rotation arrow.
□ Listen for any unusual noise.
Run unit up to speed:
□ Bearing temperatures are acceptable (<200°F) after
one to two hours of operation.
□ Check for excess levels of vibration. Filter in readings
should be 0.15 inches per second or less.
After one week of operation:
□ Check all nuts, bolts and setscrews and tighten if
necessary.
□ Re-adjust drive tension if necessary.