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Ground Level Installation
ROOF TOP PRE-INSTALLATION DETAILS
Ensure that the roof is weather tight and allows proper
drainage of condensation. Use steel or treated wood beams
as unit support for load distribution.
NOTE: To ensure proper condensate drainage, unit must be
installed in a level position.
• To avoid possible property damage or personal injury,
the roof must have sufficient structural strength to carry
the weight of the unit(s) and snow or water loads as
required by local codes. Consult a structural engineer to
determine the weight capabilities of the roof.
• The unit may be installed directly on wood floors or on
Class A, Class B, or Class C roof covering material.
• To avoid possible personal injury, a safe, flat surface for
service personnel should be provided.
Rooftop Installation
ROOF CURB INSTALLATIONS ONLY
NOTE: Sufficient structural support must be determined prior
to locating and mounting the curb and package unit.
Curb insulation, cant strips, flashing and general roofing
material are furnished by the contractor.
Curbing must be installed in compliance with the National
Roofing Contractors Association Manual. Construct duct work
using current industry guidelines. The duct work must be
placed into the roof curb before mounting the package unit.
Roof Curb Installation
RIGGING DETAILS
IMPORTANT: If using bottom discharge with roof curb, duct
work should be attached to the curb prior to installing the unit.
Lower unit carefully onto roof mounting curb. While rigging
unit, center of gravity will cause condenser end to be lower
than supply air end.
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