STEP 4 CHECKING WIRING AND PLUMBING: Check all wiring and plumbing inside and outside of the wall to be sure none will be broken where the hole is to be cut.
STEP 5 HOLE CONSTRUCTION: Depending upon size of unit to be installed, lay out the hole dimensions per the chart below. Cut and frame in hole to finished dimensions. Use 2" x 4" material for framing and follow the suggested typical installations in Figure C, D, or E.
NOTE: IF THE WALL CONSTRUCTION IS TYPICAL FRAME OR 2 x 4 STUDDING WITH BRICK OR STONE VENEERS, LOCATE THE HOLE NEXT TO ONE OF THE STUDS. FOR MASONRY, CONCRETE OR CINDER BLOCK WALLS, LOCATE HOLE FOR CONVENIENCE.
Figure D
BRICK VENEER CONSTRUCTION
SHIM VOID SPACES AT TOP AND
SIDES WITH WOOD AS REQUIRED
CAULK ALL SIDES
CABINET 
FINISHED | SMALL | MEDIUM | LARGE |
DIMENSION | CHASSIS | CHASSIS | CHASSIS |
A | 16 3⁄16" | 18 3⁄16" | 20 3⁄8" |
B | 26 3⁄16" | 26 3⁄16" | 28 1⁄4" |
NOTE: THESE DIMENSIONS ARE FOR FINISHED HOLE SIZE.
Figure C
FRAME WALL CONSTRUCTION
CAULK ALL SIDES
CABINET 
ELECTRICAL
RECEPTACLE (SEE FIG. E FOR
LOCATION NOTE)
SHIM THE VOID
SPACE AT THE
TOP AND SIDES
WITH WOOD AS REQUIRED
ELECTRICAL RECEPTACLE
(SEE FIGURE E FOR LOCATION NOTE)
Figure E
SOLID MASONRY CONSTRUCTION
CAULK
ALL SIDES
CABINET
MORTAR
ELECTRICAL
RECEPTACLE
POINT "X"
NOTE: ELECTRICAL RECEPTACLE LOCATION FROM POINT "X" MUST BE WITHIN A MAXIMUM RADIUS OF 69" FOR 115V UNITS AND 45" FOR 230V UNITS.
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