Whirlpool WHAROS5 Installation And Operation Manual page 13

Step B - Install RO Drain Under Sink
INTRODUCTION
A suitable drain point is needed for the drain water from
the Reverse Osmosis filter. You have two options:
• Install the Drain Adaptor included with your unit
As shown in Figures 8-10, the drain adaptor is
installed onto your sink's drain pipe above the P-trap.
This is normally used for under sink installations.
• Use another existing drain in your home
As shown in Figures 11 and 12, the drain tube from
the RO filter runs directly to an open drain. This is
often used for remote location installations.
NOTE: An incorrectly connected drain point can cause
water to leak from the faucet's air gap.
NOTE: Local code may restrict the type of drain instal-
lation to use. Either drain installation type, if permitted
by code, may be used in under sink or remote location
installations. Consult a plumber if you are not familiar
with plumbing procedures.
INSTALL DRAIN ADAPTOR
(Under sink Installation)
The drain adaptor included with your RO system is
designed to fit around a standard 1-1/2" O.D. drain
pipe. In the following procedure, you will install the
drain adaptor above (upstream of) the P-trap. See Fig.
8 & 10. Be sure to comply with local plumbing codes.
NOTE: Before starting this procedure, inspect the
drain pipe under the sink for corrosion, and replace if
necessary, before continuing with installation.
1. Test fit the two halves of the drain adaptor onto the
sink drain pipe, about 6 inches above the P-trap
(See Fig. 9). Make sure that the Q.C. fitting is
toward the direction of the RO faucet (See Fig. 10).
NOTE: Locate so that the drain tubing from the
Reverse Osmosis faucet will run straight to the
adaptor, with no dips, loops, or kinks.
2. Using the hole through the drain fitting as a guide,
mark the pipe where a 3/8" hole will be drilled (See
Fig. 9), and remove the drain adaptor from the pipe.
NOTE: Do not drill through the drain adaptor's Q.C.
fitting, as this could damage the o-ring.
3. Drill a 3/8" dia. hole in the pipe and remove flash.
4. Clean the sink tailpiece to assure a leak-tight fit.
5. Place the halves of the drain fitting back onto the
sink drain pipe. Use a pencil or similar pointed
object to align the Q.C. fitting so that it is centered
on the hole you drilled.
6. Assemble the nuts and screws, as shown in Figure
9, and tighten both sides equally to secure the drain
adaptor halves onto the pipe. Do not overtighten.
7. Do not connect black tubing to the Q.C. fitting at this
time. It is done after the RO faucet is installed.
Under the Sink Installation
Double Basin Sink
Garbage
Disposal
Do not install drain
adaptor on a line coming
from a garbage disposal
Nuts
Drain
Adaptor
Halves
HOT COLD
IMPORTANT: Do not install drain adaptor below the P-Trap.
Locate drain adaptor so that when the black
drain tube from the Reverse Osmosis Faucet is
installed it will run straight to the adaptor, with no
dips, loops, or kinks.
13
Single Basin
Sink
Drain
Drain
Adaptor
Adaptor
P–Trap
P–Trap
FIG. 8
Sink Drain Pipe
3/8" Hole - Do not drill
through Q.C. Fitting
3/8" Quick
Connect
Fitting
Screws
P-Trap
FIG. 9
RO Faucet
Black Drain
Tube
Drain Adaptor
P–Trap
FIG. 10