Frigidaire FDR251RJS0 Installation Instructions Manual page 8

• If you connect to a sink drain, using the "Y" Branch Tailpiece and Connector Kit, available at plumbing and
hardware stores, will make this connection easier. The kit includes all of the necessary fittings and
complete installation instructions.
• If you connect to a disposer, use the larger end of the corrugated hose which has been designed to fit the
disposer without any special connectors ( see inset of Figure 9 ).
NOTE: Be sure to remove the knockout plug from inside the disposer inlet fitting before attaching the
drain hose.
If the drain hose is to be routed through the floor to a separate trap, the trap must be vented to prevent
siphoning. To provide proper venting, install the Air Gap Kit, available at plumbing and hardware stores, into
the countertop. Route the drain hose up to the inlet side of the air gap. Continue drain line from outlet side of air
gap down through floor to separate trap ( see Figure 10 ).
Do not cut the corrugated drain hose. Excess corrugated hose should be placed flat on the floor in the
dishwasher cabinet. Make sure the hose does not come into contact with any sharp edges.
Connecting to a Sink Drain
Sink at Left
Connecting to a Disposer
Remove
Knockout
Plug in
Disposer
Sink at Left
Entry Must be
Above Trap
2" Drain Hose Hole
8
"Y" Branch
Tailpiece
Sink at Right
2" Drain Hose Hole
Figure 9
Drain Air Gap
Alternate
Drain Through
Floor into
Separate Trap
Sink at Right
Figure 10