WaterGroup E75TFC-3, Installation, Operation And Service Manual

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7
Installation of Ball Valve Assembly
The ball valve and quick connect adapter must be installed on the RO storage tank.
a. Put 2-3 wraps of Teflon tape on the storage tank threads, and on the 1/4" x 3/8" male connector.
b. Install the 1/4" x 3/8" male connector onto the ball valve. Tighten the fitting very gently until it is snug.
Be very careful not to over-tighten or the threads may strip.
c. Tighten the ball valve assembly onto the RO storage tank. Tighten the fitting very gently until it is snug.
Be very careful not to over-tighten or the threads may strip.
Drilling Sink Hole
The typical 1-1/8" sink hole will accommodate most standard or air gap spigots. Once the location of the
spigot has been determined, always check below the point you are about to drill to ensure it is
unobstructed and that it isn't over a reinforcing rib.
a. Center punch the desired location to provide a starting point for your drill.
b. Drill a 1/8" pilot hole.
c. Enlarge the pilot hole using a 1-1/8" high speed steel hole saw for air gap faucet .
d. Enlarge the pilot hole using a 9/16" drill bit for standard faucet.
e. Remove all burrs and sharp edges.
f. Immediately clean up the sink area.
NOTE: If an enamel or porcelain sink is encountered, it is very important that the layer of porcelain be
removed before following the steps outlined above. This can be accomplished by gently grinding away,
using a hobby grinder and silicon carbide wheel, enough area of porcelain down to the metal base to
accommodate a 1-1/8" high speed steel hole saw. The hole saw cannot contact surrounding porcelain or
chipping can occur. Now the steps outlined above can be followed.
Installation of Air Gap Faucet
1. Place the chrome washer and the rubber washer on the base of the faucet.
2. Apply 5-7 wraps of the teflon tape to the bottom of the brass stem. Install 3/8" quick connect faucet
adapter provided. Tighten gently until fitting is snug. Be careful not to over-tighten as the threads may
strip.
3. Attach the 1/4" brine water discharge line to the brine input (small) barb and 1/4" or 3/8" drain line to
the brine output (large) barb.
4. Mount the faucet and complete assembly.
Note: Before connections are made, tubing should be cut to ensure a neat and orderly installation. The
storage tank and spigot tubes should be as short as possible so that the greatest possible flow can be
obtained from the spigot.
Ball Valve
Tank
3/8 Tubing
Adapter
Figure 7 - Pressure Tank Shutoff Valve