Unit Weight/Rigging; Rigging - Trane RRU120 D B Series Installation, Operation And Maintenance Manual

Unit Weight/Rigging

WARNING
Heavy Objects!
Failure to follow instructions below or properly lift unit
could result in unit dropping and possibly crushing
operator/technician which could result in death or
serious injury, and equipment or property-only damage.
Ensure that all the lifting equipment used is properly
rated for the weight of the unit being lifted. Each of the
cables (chains or slings), hooks, and shackles used to
lift the unit must be capable of supporting the entire
weight of the unit. Lifting cables (chains or slings) may
not be of the same length. Adjust as necessary for even
unit lift.

Rigging

Refer to Figure 9 and Table 1
weights rigging before proceeding.
Figure 9. Rigging and center-of-gravity data
Table 1. Typical unit weights
Weight (lb)
Unit Model
Tons Number Shipping Net
10 RRU120F*DQA 1772
12.5 RRU150F*DBA 3182
15 RRU180F*DCA 3250
20 RRU240F*DCA 3321
25 RRU300F*DCA 3460
3. Remove the shipping crate from around the unit. Do
not remove the crating from the top of the unit.
4. Rig the unit as shown in
strength lifting slings to all four lifting brackets in the
unit base rail. Do not use cables, chains, or slings
except as shown.
18
for typical unit operating
Center of Gravity (in.)
Length Width
1617 62 22
2775 76 36
2777 76 36
2876 76 35
2982 76 35
Figure 9. Attach adequate
WARNING
Improper Unit Lift!
Failure to properly lift unit in a LEVEL position could
result in unit dropping and possibly crushing operator/
technician which could result in death or serious injury,
and equipment or property-only damage.
Test lift unit approximately 24 inches (61 cm) to verify
proper center of gravity lift point. To avoid dropping of
unit, reposition lifting point if unit is not level.
5. Install a lifting bar, as shown in
unit and to facilitate a uniform lift. The minimum
distance between the lifting hook and the top of the
unit should be 7 feet.
6. Test-lift the unit to ensure it is properly rigged and
balanced, make any necessary rigging adjustments.
7. Lift the unit and position it into place.
8. Down flow units; align the base rail of the unit with the
curb rail while lowering the unit onto the curb. Make
sure that the gasket on the curb is not damaged while
positioning the unit.
Figure 9, to protect the
RRU-SVX01E-EN