Positioning New Outdoor Unit - Lennox AC13 -018 Installation Instructions Manual

Positioning New Outdoor Unit

CAUTION
In order to avoid injury, take proper precaution when
lifting heavy objects.
See Unit Dimensions on page 2 for sizing mounting slab,
platforms or supports. Refer to figure 7 for mandatory
installation clearance requirements.
*
* SEE NOTES BELOW THIS FIGURE FOR FURTHER DETAILS.
Figure 7. Installation Clearances
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.
S
A clearance of 24 in. (610 mm) must be maintained
between two units
POSITIONING CONSIDERATIONS
INSTALL UNIT AWAY
FROM WINDOWS
TWO 90° ELBOWS
INSTALLED IN LINE SET
WILL REDUCE LINE SET
VIBRATION.
Figure 8. Outside Unit Placement
506109−01 10/08
*
*
*
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 transmission. For proper
placement of unit in relation to a window see the provided
illustration in figure 8.
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. The slab
should have a slope tolerance as described in figure 9.
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.
GROUND LEVEL
Figure 9. Slab Mounting at Ground Level
NOTE − If necessary for stability, anchor unit to slab as
described in Stabilizing Unit on Uneven Surfaces on page.
ELEVATING THE UNIT (SMALL−BASE UNITS)
If additional elevation is necessary, raise the unit by
extending the length of the unit support feet. This may be
done by cutting four equal true−cut lengths of Schedule
(SCH) 40, 4" (101.6mm) piping to the height required as
illustrated in figure 10.
LEG DETAIL
Figure 10. Elevated Slab Mounting using Feet
Extenders (Small Base Units)
Page 6
BUILDING
STRUCTURE
MOUNTING
SLAB
BASE
4" (101.6MM)
SCH 40 PIPING