McQuay IM 487-4
23
Introduction
Rigging and Handling
Lifting brackets with 2" (51 mm) diameter holes are provided
on the sides of the unit.
Use spreader bars, 96" to 100" (2438 to 2540 mm) wide to
prevent damage to the unit cabinet. Avoid twisting or uneven
lifting of the unit. The cable length from the bracket to the
hook should always be longer than the distance between the
outer lifting points.
If the unit is stored at the construction site for an intermediate
period, take these additional precautions:
1
Support the unit well along the length of the base rail.
2
Level the unit (no twists or uneven ground surface).
3
Provide proper drainage around the unit to prevent flooding
of the equipment.
4
Provide adequate protection from vandalism, mechanical
contact, etc.
5
Securely close the doors.
6
If there are isolation dampers, make sure they are properly
installed and fully closed to prevent the entry of animals
and debris through the supply and return air openings.
7
Cover the supply and return air openings on units without
isolation dampers.
Figure 28 shows an example of the rigging instruction label
shipped with each unit.
Figure 28. Rigging and handling instruction label
WARNING
Use all lifting points. Improper lifting can cause severe personal
injury and property damage.
CAUTION
Lifting points may not be symmetrical to the center of gravity of
the unit. Ballast or unequal cable lengths may be required.
Unit has either four or six lifting p
oints (four-point shown below).
Rigging cables must be at leastas long as distance“A.”
Spreader bars
required
Lift only as indicated
Caution:
Lifting points may not
be symmetrical to center of
gravity of unit. Balast or unequa
cable lengths may be required.
A
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