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3. Do not install the unit in an area where combustible gas
may generate, flow, stagnate, or leak. There is the possibility
of fire.
4.Do not install the unit in a location where acidic solution
and spray (sulfur) are often used
Rigging
Rigging holes for shackles are integral on the unit
base. Use four independent lines, securing one end
of a line to a unit base lifting point and the other end
of the line to an associated spreader bar lifting point.
See Figure below.
Use spreader bars 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..
Lifting
WARNING
1. Only trained and qualified personnel should be
allowed to rig loads or operate load rated cranes
and/or hoist assemblies. Do not use a forklift to lift
or maneuver the unit. Failure to use a load rated
crane or hoist assembly to lift or maneuver the unit
can cause severe personal injury and
property damage.
2. Use all lifting points. Improper lifting can cause
property damage, severe personal injury or death.
Note:
Lifting points may not be symmetrical to the center
of gravity of the unit. Ballast or unequal cable
lengths may be required.
1. Before lifting, be sure that all shipping materials
have been removed from unit.
2. To assist in determining rigging requirements,
see the General Data section of this manual.
.
3.Spreader bars must span the unit to prevent
damage to the cabinet by the lift cables
4. Always test-lift the unit to check for proper
balance and rigging before hoisting to desired
location.
5. Do not lift unit by weatherhood.
6.Do not lift units in windy conditions.
7.Preparation of curb and roof openings should
be completed prior to lifting unit to the roof.
8.heck to make sure that gasket (supplied by
others) has been applied to the top of the curb
prior to lifting the unit and setting on the curb.
9.Do not use fork lifts for handling unit.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
Due to our policy of continuous product innovation, some specifications may change without notification.
Figure 1. Split RTU Rigging
Model
ARNU363DDA4
ARNU483DDA4
Net Weight (lbs.)
472
Rail Mounting
The units may be installed on rails provided and installed by
others. Ensure that rails are designed to handle the weight of
the unit and pro-vide proper load distribution on building
supports.
1. Make sure that rail positioning does not interfere with the
openings on the unit.
2. Rails should run the width of the unit and extend beyond the
unit a minimum of 12 inches on each side.
3. Set unit on rails.
See Figure below for example of a typical RTU installed on rails
supplied by others.
Figure 2: Split RTU - Installed on Rails.
Typical Unit Installed on Rails Supplied by Others
RIG
ARNU603DDA4
ARNU723DDA4
472
472
472
20
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