AAON BL-600 - Manual (Page 17)

17
Pipe Insulation
The water piping and components on units
with pumping packages are not insulated at
the factory. Insulation should be installed on
the water piping after the system has been
checked for leaks.
Installation
Outdoor Mechanical Room Placement
The AAON BL Series is designed for
outdoor applications and mounting at
ground level or on a rooftop. It must be
placed on a level and solid foundation that
has been prepared to support its weight.
Table 1 - Service Clearances
Location All Sizes
Front
100”
Back
100”
Ends
100”
Top Unobstructed
Consideration must be given to obstruction
caused by snow accumulation when placing
the unit.
Curb and Steel Mount Installation
Make openings in the roof decking large
enough to allow for water piping, electrical,
and gas penetrations and workspace only.
Do not make openings larger than necessary.
Set the curb to coincide with the openings.
Make sure curb is level.
Unit specific curb drawing is included with
job submittal. See SMACNA Architectural
Sheet Metal Manual for curb installation
details.
Units require rail support along all four sides
of the unit base.
When installed at ground level, a one-piece
concrete slab should be used with footings
that extend below the frost line.
If unit is elevated a field supplied catwalk is
recommended to allow access to unit service
doors.
This unit ships with a curb gasket that is
1¼” wide and 1½” tall. It is recommended
that this or another similar gasket be used
between the curb and the unit to reduce
vibration from the unit to the building.
Figure 3 - Curb Mounting with Dimensions
All roofing work should be performed
by competent roofing contractors to
avoid any possible leakage.
CAUTION