10
88-4TCA4001-1C-EN
Table 2. Lifting and Rigging
Base of unit
rest on top of
curb rails
Drip lip on
perimeter of
unit
Spreader Bars
Gasket Seal
Drip Lip
Dimple
BAYLIFT002A
Lifting Lugs
IImmppoorrttaanntt:: Do not lift the unit without test lifting for
balance and rigging. Do not lift the unit in
windy conditions or above personnel. Do
not lift the unit by attaching clevis, hooks,
pins, or bolts to the unit casing, casing
hardware, corner lugs, angles, tabs, or
flanges. Failure to observe these warnings
may result in equipment damage.
1. Before preparing the unit for lifting, check the unit
dimension drawings for center of gravity for lifting
safety (Figures 1 to 6). Because of placement of
internal components, the unit’s weight may be
unevenly distributed. Approximate unit weights are
also provided in the unit drawings.
NNoottee:: Unit rigging and hoisting requires accessory kit
BAYLIFT002A. It includes a kit of four (4) lifting
lugs.
2. Insert the four lifting lugs in the openings provided
in the drip lip on each end of the unit. A tap or jerk
to the lug will overcome the interference that arises
due to the dimple on the lug.
3. When hoisting the unit, be sure that a proper
method of rigging is used. Use slings and spreader
bars for protection during lifting. Always test-lift the
unit to determine the exact unit balance and
stability before hoisting it to the installation
location.
4. When the curb and air ducts have been properly
installed, the unit is ready to be hoisted to the roof
and set in position.
IImmppoorrttaanntt:: To prevent damage to the sides and top of
the unit when hoisting use “spreader
bars”.
IImmppoorrttaanntt:: The unit must be lowered into position. The
P.V.C. rubber tape on the curb flange
permits the unit to be repositioned if
required without destroying the P.V.C.
rubber seals affixed to the mounting curb.
SStteepp 44 —— UUnniitt IInnssttaallllaattiioonn
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