-4-
INSTALLING THE VALVE BLOCKS
The Tapmaster valve blocks are connected in-line between the hot and cold shut off valves and the faucet tubes as
shown in
Figure 2
.
(Note: The valve blocks are identical in function and may be used on either hot or cold water
lines. Position them according to how the control tubing will be routed). (Small leaks may take several minutes to
show up).
STEP #1 -
Hook up the control tubing from the pilot/actuator to the valve
block with the plastic sleeves provided as per
Figure 1
. (Note: To facilitate
the installation of the tubing and sleeves, dip the ends of the tubing into hot
soapy water and using a pair of needle nose pliers push the tubing on to the
barb fittings. An adjustable wrench opened to the diameter of the tubing will
assist in pushing on the sleeves.
Take care not to damage the barb fittings or
crush the tubes.
If a tube must be removed from a barb fitting, split the tube
along its length with a sharp knife
(Do not pull as this may damage the barb).
STEP #2 -
Turn off the water supplies
and place a bucket underneath the shut
off valves to catch water that may run out of the plumbing.
(Hint: Closing the
faucet handles will minimize leakage)
. Loosen the compression nuts on the con-
necting 3/8” O.D. supply tubes, at the shut off valves. If the faucet utilizes cop-
per tube risers, bend and reposition the tubes in such a manner as to create a 1-
1/2" gap
(Do not kink).
To simplify the installation, replace the copper risers with
flex risers
(available at most hardware stores)
. If this cannot be readily
accomplished the tubes will have to be shortened approximately 1-1/2”. Cut the
tubes with a tube cutter. If a tube cutter is not available a hacksaw may be used,
however be sure to de-bur and square the ends. Extra compression nuts and
sleeves are provided should the tubes need to be cut.
STEP #3 -
Prior to installing the valve blocks, open the shut-off valves
momentarily to flush out any debris in the water lines. Large pieces of water
borne debris will be trapped by the filter/screen in the valve blocks and may
reduce water flow or cause noisy operation. As shown in
Figure 2
connect the
valve block(s) with the integrated nut (input) to the shutoff fitting and the faucet
riser to the compression thread (output). Finger tighten only until both valve
blocks are in position. Be sure the plastic control tubing and fittings are not
damaged in any manner.
STEP #4
- Proceed to tighten the compression nuts using a 5/8” wrench on the
nut and a 7/8” wrench on the valve block body . Do not over tighten 3/8” com-
pression fittings with O-ring seals such as the valve block input fitting. Hand
tighten plus 1/2 turn with wrench.
STEP #5
- Verify that all connections are tight. Turn on the water supply(s)
and inspect
all
connections for leaks. Set the faucet, both hot and cold,
completely open and push the cabinet door to activate the water flow. Operate
the Tapmaster on and off rapidly to clear air from the valves. The valves may
experience some noise during on or off operation until the air is cleared. Allow
significant time to pass and then re-inspect all connections for leaks
(Small leaks
may take several minutes to show up).
Figure 1
Figure 2
FAUCET
RISER
OUTPUT
INPUT
SHUTOFF
