Lennox Collection XC21 System Installation Instructions Manual page 8

DETAIL A
Outside Unit Placement
INSTALL UNIT AWAY FROM WINDOWS
TWO 90° ELBOWS INSTALLED IN LINE SET WILL
REDUCE LINE SET VIBRATION.
DETAIL C
Elevated Slab Mounting
using Feet Extenders
LEG DETAIL
2" (50.8MM) SCH 40
FEMALE THREADED
ADAPTER
2" (50.8MM) SCH 40
MALE THREADED
ADAPTER
Use additional 2" SCH 40 male threaded adapters
which can be threaded into the female threaded
adapters to make additional adjustments to the level of
the unit.
IMPORTANT To help stabilize an outdoor unit, some installations may require strapping the unit to the pad using brackets and anchors
commonly available in the marketplace.
IMPORTANT
Unit Stabilizer Bracket Use (field−provided):
Always use stabilizers when unit is raised above the factory height. (Elevated units could become unstable in gusty wind conditions).
Stabilizers may be used on factory height units when mounted on unstable an uneven surface.
506587−01
DETAIL D
#10 1/2" LONG SELF−DRILLING
STABILIZING BRACKET (18 GAUGE
METAL
#10 1−1/4" LONG HEX HD SCREW
Concrete slab
drill 1/4")
BASE
Wood or plastic slab
drill 1/8")
DETAIL E
Stabilizing bracket (18 gauge metal
right angle as exampled below.
One bracket per side (minimum). For extra stability, two brackets per side, two inches
(51mm) from each corner.
Figure 5. Placement and Slab Mounting
DETAIL B
Install unit level or, if on a slope, maintain slope tolerance of two (2)
degrees (or two inches per five feet [50 mm per 1.5 m]) away from
building structure.
GROUND LEVEL
STABILIZING UNIT ON UNEVEN SURFACES
Slab Side Mounting
SHEET METAL SCREWS
2" WIDTH; HEIGHT AS
REQUIRED)
AND FLAT WASHER
use two plastic anchors (hole
no plastic anchor (hole
Deck Top Mounting
2" (50.8mm) width; height as required); bend to form
SAME FASTENERS AS
SLAB SIDE MOUNTING.
Page 8
Slab Mounting at Ground Level
BUILDING
STRUCTURE
MOUNTING
SLAB
COIL
BASE PAN
CORNER POST
MINIMUM ONE
PER SIDE
FOR EXTRA
STABILITY