EVAPCO LPT Series Rigging And Installation Manual page 3

The supporting "I" beams should be level to within 1/8" (3 mm) in 6' (2 m) before setting the unit. Do not level the unit by shimming
between the bottom flange and the beams as this will not provide proper longitudinal support.
NOTE: Consult IBC 2012 for required steel support layout and structural design.
ATTENUATION
Plan View
Figure 1 – Structural Steel Support
Rigging the Main Unit
Lifting devices are located on the sides of the unit near the bottom as shown in Figure 2a. It is recommended that units be lifted
using a boom oriented along the length of the unit with the cables straddling the unit at the lift points (Figure 2a). An alternative
method is to lift the unit with a single hook, lashing the cables to the lift points on the unit directly (Figure 2b). Spreader bars are
necessary in both cases to prevent damage to the sides of the unit.
When a boom is used, the distance "A" between the lift points on the boom should be set equal to the distance between the lift points
on the unit and the crane hook must be located a minimum distance "H1" above the top of the unit as shown in Figure 2a.
When no boom is used, the crane hook must be a minimum distance "H2" above the lifting points on the unit as shown in Figure 2b.
H
1
SPREADER BAR
Figure 2a – Recommended Rigging - LP/LR Main Unit
Low Profile Forced Draft Towers, Coolers and Condensers
LP/LR
SOUND
End Elevation
A
Table 1 – Steel Support Dimensions
Coil/Casing
Footprint
3' x 6' (0.9 x 1.8 m) 10' 1-7/8" (3,099 mm)
5' x 6' (1.5 x 1.8 m) 12' 2-7/8" (3,734 mm) 15' 10-5/8" (4,839 mm)
5' x 9' (1.5 x 2.7 m) 15' 2-1/4" (4,632 mm)
5' x 12' (1.5 x 3.6 m) 18' 2-5/8" (5,556 mm) 21' 10-3/8" (6,664 mm)
8' x 9' (2.4 x 2.7 m) 15' 2-1/4" (4,632 mm)
8' x 12' (2.4 x 3.6 m) 18' 2-5/8" (5,556 mm) 21' 10-3/8" (6,664 mm)
SPREADER
BAR
H
2
Figure 2b – Alternate Rigging - LP/LR Main Unit
A1 A2
13' 9-5/8" (4,207 mm)
18' 10" (5,740 mm)
18' 10" (5,740 mm)
SPREADER BAR
B1
3' 4-1/2" (1,029 mm)
5' 5/8" (1,540 mm)
5' 5/8" (1,540 mm)
5' 5/8" (1,540 mm)
7' 10" (2,388 mm)
7' 10" (2,388 mm)
SPREADER BAR
3