Lennox XC21 Installation Instructions Manual page 9

DETAIL C
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.
Elevated Slab Mounting using Feet
Extenders
DETAIL D
Slab Side Mounting
#10 1/2" LONG SELF−DRILLING
STABILIZING BRACKET (18 GAUGE
METAL
#10 1−1/4" LONG HEX HD SCREW
BASE
CONCRETE
ANCHORS (HOLE DRILL 1/4")
WOOD OR PLASTIC SLAB
(HOLE DRILL 1/8")
IMPORTANT
strapping the unit to the pad using brackets and anchors commonly available in
the marketplace.
Figure 5. Placement, Slab Mounting and Stabilizing Unit
SHEET METAL SCREWS
2" WIDTH; HEIGHT AS
REQUIRED)
AND FLAT WASHER
SLAB USE TWO PLASTIC
NO PLASTIC ANCHOR
Deck Top Mounting
STABILIZING BRACKET (18 GAUGE METAL
2" (50.8MM) WIDTH;
REQUIRED); BEND TO FORM RIGHT ANGLE
SAME FASTENERS AS
SLAB SIDE MOUNTING.
ONE BRACKET PER SIDE (MIN.); FOR EXTRA STABILITY, TWO
BRACKETS PER SIDE, 2" (50.8MM) FROM EACH CORNER.
Stabilizing Unit on Uneven Surfaces
To help stabilize an outdoor unit, some installations may require
Page 9
COIL
BASE PAN
CORNER POST
MINIMUM ONE
PER SIDE
HEIGHT AS
FOR EXTRA
STABILITY
XC21 SERIES