Procedures:
1. Shut-off the cold water supply using the angle stop
shut-off located under your sink.
2. After shutting off the valve, relieve the pressure by
opening the handle on your faucet on the cold water
side.
3. Using an adjustable wrench, disconnect the riser tube
from the existing cold water shut-off.
4. Move the tubing away from the valve to make room for
the John Guest Angle Stop Valve.
5. Connect the swivel end of the John Guest Angle Stop
Valve to the threads on the cold water shut-off. This
connection should only be hand tight.
6.
Connect the riser tube to the male end of the John
Guest Angle Stop Valve and tighten with a wrench.
7.
Connect a length of 1/4” tubing between the John
Guest Fitting on the Angle Stop Valve and the inlet of
the RO unit.
Flexible Riser Tubes
- Most riser tubes that are used today are
made of flexible material, either braided stainless steel, braided
plastic or gray 3/8” plastic tubing. These flexible tubes are the
easiest to use with the John Guest Angle Stop Valve because
the 2” of additional space needed for the Faucet Adaptor can be
easily accommodated by flexing this kind of riser. A shorter riser
tube will not be needed.
Copper Riser Tubes
- If your riser tube is made of copper you
will need to either make a bend in the copper to allow for the
2” of space needed for the John Guest Angle Stop Valve. If the
copper tube is 3/8”, bending it can be done easily by hand.
The John Guest Angle Stop Valve works with 3/8” shut-off
valves and riser tubes. In some cases, older plumbing may
use a larger size shut-off and riser tube. In this case, it would
be necessary to either replace the old valve and riser tube
with new 3/8” parts, or use an alternative connection to draw
the water supply to the reverse osmosis system. Alternatives
include self piercing valves, T fittings, and faucet adaptors that
connect between the faucet and the top of the riser tube.
Please consult your distributor or an installation professional for
additional assistance.
4. Drain Saddle Valve Installation
(See Figure 3)
A Drain Saddle is used to make a wastewater connection
with the drain under the sink, which is designed to fit
around a standard 1-1/2” OD drainpipe. The drain saddle
valve should always be installed before (above) the p-trap
and on a vertical or horizontal drain. Do not install the drain
saddle near a garbage disposal to avoid clogging the drain
line with debris.
Procedures:
1. Position the drain saddle valve at selected location and
mark for the opening.
2. Drill 1/4” hole at mark through one side of pipe.
3. Remove backing from gasket and place adhesive side
to the fitting half of drain clamp around hole.
4.
Position both halves of drain saddle on drain pipe so
the opening aligns with drilled hole. Use a small drill bit
to verify that drain clamp is properly aligned.
5. Secure drain saddle clamp on valve with bolts and nuts
provided. (Do not over tighten and make sure there is
equal space between saddle halves on each side)
5. Initial tubing connections
For convenience on under sink installations it may be
advisable to complete under sink tubing connections at this
time.
6. RO Component Installation
Install RO membrane O-ring end first, carbon prefilter(s)
and sediment pre filter in vertical mounted housings. Be
sure RO Membrane is pushed into Membrane housing
as far as it will go. It is recommended that filters and
membranes be handled with clean or gloved hands.
Summary of Contents for USRO4-50-JG
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