AAON RN-140 - Manual (Page 38)

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with the outside air hood in the open
position.
Before lifting unit, be sure that all shipping
material has been removed from unit. Secure
hooks and cables at all lifting points / lugs
provided on the unit.
Hoist unit to a point directly above the curb
and duct openings. Be sure that the gasket
material has been applied to curb.
Carefully lower and align the unit with
utility and duct openings. Lower the unit
until the unit skirt fits around the curb. Some
units are designed to overhang the curb.
Take care that any recessed base rails fit
around the curb. Make sure the unit is
properly seated on the curb and is level.
Figure 10 - Lifting Details of a 6-25 and 30 ton Standard or Power Exhaust Unit