Lennox Signature XP21 Series Installation And Service Procedure page 10

DETAIL A
INSTALL UNIT AWAY FROM WINDOWS
TWO 90° ELBOWS INSTALLED IN LINE SET WILL
REDUCE LINE SET VIBRATION.
Outside Unit Placement
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 ADAPT-
ERS WHICH CAN BE THREADED INTO THE FEMALE
THREADED ADAPTERS TO MAKE ADDITIONAL AD-
JUSTMENTS TO THE LEVEL OF THE UNIT.
Elevated Slab Mounting using Feet
Extenders
XP21
DETAIL D
Slab Side Mounting
#10 1/2" LONG SELF−DRILLING
SHEET METAL SCREWS
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 and Slab Mounting
DETAIL B
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
Slab Mounting at Ground Level
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 10
BUILDING
STRUCTURE
MOUNTING
SLAB
COIL
BASE PAN
CORNER POST
MINIMUM ONE
PER SIDE
HEIGHT AS
FOR EXTRA
STABILITY