AAON RQ NextGen Series, Installation Operation & Maintenance

Page: 25 / 108

25
Figure 2 - RQ Series Orientation
Setting the Curb
Make openings in roof decking large enough
to allow for duct penetration and workspace
only. Do not make openings larger than
necessary. Set the curb to coincide with the
openings. Make sure the curb is level. Unit
must be level in both horizontal axes to
support the unit and reduce noise and
vibration.
Be careful to install the provided neoprene
isolator according to Figure 3 prior to setting
the unit on the curb.
All roofing work must be performed by
competent roofing contractors to
avoid any possible leakage.
CAUTION
Where the supply or warm air duct
passes through a combustible roof, a
clearance of 2.5 cm (1 inch) must be
maintained between the outside
edges of the duct and combustible
material in accordance with National
Fire Protection Association Standard
No. 90A. Provide flashings or
enclosure between structure and roof
and all joints must be sealed with
mastic roofing to ensure a watertight
seal.
CAUTION
Back
Right Side
Front
Neoprene isolator for unit vibration
isolation is provided in the cabinet and
must be installed according to installation
manual.
CAUTION