Frigidaire FFBD1821M Installation Instruction

3

Figure C

Figure D

Install waste tee or disposer and air gap according to
manufacturer’s instructions.

• Drill a 1-1/2” dia. hole in the cabinet wall within the

shaded areas shown in Figure A for the drain hose
connection. The hole should be smooth with no sharp
edges.

Method 2 – High Drain with Waste Tee or Disposer
Provide a method to attach drain hose to underside of
countertop.

Cabinets

Square

and

Plumb

32.5"

Underside of

Countertop

to Floor

24" 

Min.

17-5/8" Min.

18" Max.

4"

6"

Clearance for Door

Opening 2" Minimum

Countertop

Dishwasher

25-5/8"

18"

Min.

32"

Min.

32"

Min.

18"

Min.

Figure A

• The rough cabinet opening must be at least 24” deep

and 17-5/8” to 18” wide. The opening should be 32.5”
max. height.

CLEARANCES: When
installed into a corner,
allow 2” min. clearance
between dishwasher
and adjacent cabinet,
wall or other appliances.
Allow 25-5/8" min.
clearance from the front
of the dishwasher for
door opening. Figure B

Note: ADA installation, (32-1/2”) beneath 34” high
counter-tops may be accomplished by adjusting the
toekick and leveling legs.

Figure B

• Follow local codes and ordinances.
• Do not exceed 10 feet distance to drain.
• Do not connect drain lines from other devices to the

dishwasher drain hose.

• Dishwasher must be connected to waste line with an

air gap (not supplied) or 32" minimum high drain
loop, depending on local codes and ordinances to
prevent back flow into the dishwasher.

• Air gap must be used if waste tee or disposer

connection is less than 18" above the floor to prevent
siphoning.

The type of drain installation depends on answers to
the following questions:
¨

Do local codes or ordinances require an air gap?

¨

Will waste tee or disposer connection be less than
18" above the floor?

¨

Will installation have a drain loop less than 32"
above floor?

If the answer to ANY of the 3 questions above is YES,
Method 1 MUST be used. Otherwise either Method 1 or
Method 2 may be used. Figure C or Figure D.

An air gap MUST BE USED if the drain hose is
connected to waste tee or disposer lower than 18"
above the floor.

Failure to provide the proper drain connection height
with air gap or 32" minimum, high drain loop will result
in improper draining of the dishwasher.

• The dishwasher must be installed so that drain hose is

no more than 10 feet in length for proper drainage.

• The dishwasher must be fully enclosed on the top,

sides and back, and must not support any part of the
enclosure.