Lennox Dave Signature Collection XC15 Installation Instructions Manual page 6

NOTES:
S
Service clearance of 30 in. (762 mm) must be
maintained on one of the sides adjacent to the control
box.
S
Clearance to one of the other three sides must be 36
.
in. (914 mm)
S
Clearance to one of the remaining two sides may be
12 in. (305 mm) and the final side may be 6 in. (152
.
mm)
S
48 in. (1219 mm) clearance required on top of unit.
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A clearance of 24 in. (610 mm) must be maintained
between two units.
POSITIONING CONSIDERATIONS
Consider the following when positioning the unit:
INSTALL UNIT
AWAY FROM
WINDOWS
TWO 90° ELBOWS INSTALLED IN
LINE SET WILL REDUCE LINE SET
VIBRATION.
Figure 9. Outside Unit Placement
S
Some localities are adopting sound ordinances based
on the unit's sound level registered from the adjacent
property, not from the installation property. Install the
unit as far as possible from the property line.
S
When possible, do not install the unit directly outside
a window. Glass has a very high level of sound
transmission. For proper placement of unit in relation
to a window see the provided illustration in figure 9.
PLACING OUTDOOR UNIT ON SLAB
When installing unit at grade level, the top of the slab
should be high enough above grade so that water from
higher ground will not collect around the unit. The slab
should have a slope tolerance as described in figure 10.
NOTE − Install unit level or, if on a slope, maintain slope
tolerance of 2 degrees (or 2 inches per 5 feet [50 mm per
1.5 m]) away from building structure.
506044−01 06/08
GROUND LEVEL
Figure 10. Slab Mounting at Ground Level
NOTE − If necessary for stability, anchor unit to slab as
described in Stabilizing Unit on Uneven Surfaces on page
7.
ELEVATING THE UNIT
Unlike the small−base units which use round support feet,
the larger−base units are outfitted with elongated support
feet as illustrated in figure 11 which uses a similar method
for elevating the unit.
If additional elevation is necessary, raise the unit by
extending the length of the unit support feet. This may be
achieved by using a 2" SCH 40 female threaded adapter.
The specified coupling will fit snuggly into the recessed
portion of the feet. Use additional 2" SCH 40 male threaded
adaptors which can be threaded into the female threaded
adaptors to make additional adjustments to the level of the
unit.
LEG DETAIL
Figure 11. Elevated Slab Mounting using
Feet Extenders (Larger Base Units)
NOTE − Keep the height of extenders short enough to
ensure a sturdy installation. If it is necessary to extend
further, consider a different type of field−fabricated
framework that is sturdy enough for greater heights.
Page 6
BUILDING
STRUCTURE
MOUNTING
SLAB
BASE
2" (50.8MM) SCH 40
FEMALE THREADED
ADAPTER