Installation; Unit Placement - Lennox ML14XC1 Series Manual

Unit Placement

See Unit Dimensions on page 4 for sizing mounting slab,
platforms or supports.
CAUTION
In order to avoid injury, take proper precaution when
lifting heavy objects..
POSITIONING CONSIDERATIONS
Consider the following when positioning the unit:
• 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.
• When possible, do not install the unit directly outside
a window. Glass has a very high level of sound trans-
mission. For proper placement of unit in relation to a
window see the provided illustration in figure 6, detail A.
PLACING 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.
See
NOTES
NOTICE: Specific applications may require adjustment of the listed installation clearances to provide protection for
the unit from physical damage or to avoid conditions which limit operating efficiency. (Example: Clearances may
have to be increased to prevent snow or ice from falling on the top of the unit. Additional clearances may also be
required to prevent air recirculation when the unit is installed under a deck or in another tight space.)
See NOTES
See
NOTES
Control
See NOTES
Box
FIGURE 3. Installation Clearances

Installation

The slab should have a slope tolerance as described in
figure 6, detail B.
NOTE – If necessary for stability, anchor unit to slab as
described in figure 4, detail B.
ROOF MOUNTING
Install the unit a minimum of 6 inches (152 mm) above the
roof surface to avoid ice build-up around the unit. Locate
the unit above a load bearing wall or area of the roof that
can adequately support the unit. Consult local codes for
rooftop applications. If unit coil cannot be mounted away
from prevailing winter winds, a wind barrier should be con-
structed. Size barrier at least the same height and width
as outdoor unit. Mount barrier 24 inches (610 mm) from
the sides of the unit in the direction of prevailing winds.
Roof Damage!
This system contains both refrigerant and oil. Some
rubber roofing material may absorb oil, causing the
rubber to swell. Bubbles in the rubber roofing material
can cause leaks. Protect the roof surface to avoid
exposure to refrigerant and oil during service and
installation. Failure to follow this notice could result in
damage to roof surface.
NOTES:
Service clearance of 30 in. must be maintained on one of the sides
adjacent to the control box.
Clearance to one of the other three sides must be 36 in.
Clearance to one of the remaining two sides may be 12 in. and the
final side may be 6 in.
A clearance of 24 in. must be maintained between two units.
48 in. clearance required on top of unit.
Page 8
NOTICE