General Information; Setting The Unit - Lennox XP14 Elite Series Installation Instructions Manual

WARNING
Product contains fiberglass wool.
Disturbing the insulation of this product during
installation, maintenance, or repair will expose you
to fiberglass wool. Breathing this may cause lung
cancer. (Fiberglass wool is know to the State of
California to cause cancer.) Fiberglass wool may
also cause respiratory, skin and eye irritation.
To reduce exposure to this substance or for further
information, consult material safety data sheets
available from address show below, or contact your
supervisor.
Lennox Industries Inc., PO Box 79011, Dallas, TX
75379−9011

General Information

These instructions are intended as a general guide and do
not supersede local codes in any way. Consult authorities
having jurisdiction before installation.
When servicing or repairing HVAC components, ensure
the fasteners are appropriately tightened. Table 1 shows
torque values for fasteners.
Table 1. Torque Requirements
Part Recommended Torque
Service valve cap 8 ft.− lb.
Sheet metal screws 16 in.− lb.
Machine screws #8 16 in.− lb.
Compressor bolts 90 in.− lb.
Gauge port seal cap 8 ft.− lb.

Setting the Unit

CAUTION
In order to avoid injury, take proper precaution when
lifting heavy objects.
Outdoor units operate under a wide range of weather
conditions; therefore, several factors must be considered
when positioning the outdoor unit.
Position the unit to allow adequate airflow and servicing
clearance. Maintain a minimum clearance of 24 inches
(610 mm) between multiple units as illustrated in figure 1
for installation clearances.
1. Place a sound-absorbing material, such as Isomode,
under the unit if it will be installed in a location or
position that will transmit sound or vibration to the
living area or adjacent buildings.
2. Install the unit high enough above ground or roof to
allow adequate drainage of defrost water and prevent
ice build-up.
3. In heavy snow areas, do not locate unit the where
snowdrifts will likely build. The unit base should be
elevated above the depth of average snows.
NOTE - Elevation of the unit may be accomplished by
constructing a frame using suitable materials. If a
support frame is constructed, it must not block drain
holes in unit base.
4. Locate the unit so prevailing winter winds will not blow
5. Locate unit away from overhanging roof lines which
11 NM
2 NM
2 NM
10 NM
11 NM
SLAB MOUNTING
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 away from the building of 2
degrees or 2 inches per 5 feet (50 mm per 1500 mm) to
prevent ice build-up under the unit during a defrost cycle.
NOTE − If necessary for stability, anchor unit to slab as
described in Stabilizing Unit on Uneven Surfaces on page
4.
GROUND LEVEL
Page 3
into the coil.
would allow water or ice to drop on, or in front of, coil
or into unit.
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NOTES:
Service clearance of 30 in. (762 mm) 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. (914
mm)
Clearance to one of the remaining two sides may be 12 in. (305
mm) and the final side may be 6 in. (152 mm).
A clearance of 24 in. (610 mm) must be maintained between
two units.
48 in. (1219 mm) clearance required on top of unit.
Figure 1. Installation Clearances
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.
Figure 2. Slab Mounting Options
See
NOTES
Control
Box
BUILDING
STRUCTURE
MOUNTING
SLAB
XP14 SERIES