Myron L 597 - Manual (Page 4)

NOTE: The 1-inch NPT valve supplied requires at least 10 psi
(69 kPa) line pressure to operate. Increasing flow rate
may allow valve to operate at lower pressure.
C. Wiring
1. Connect the four color coded wires from the Controlstik
(sensor) to terminals in the Transformer Box marked
Controlstik.
2. Obtain enough low voltage wire (at least 20 gauge) to
connect solenoid valve to Transformer Box. Use pliers
to attach spade lugs (provided) to wire. Connect wires
to terminal strip in box as in diagram.
3. Recheck to be certain all connections are to correct
terminals.
CAUTION: DO NOT short or connect the Controlstik
(sensor) to the terminals marked VALVE;
damage may result.
D. Testing
1. If controlling ordinary tap water, make sure Transformer
Box range toggle switch is set on “Hl” (toward back
of box). If controlling purified (such as deionized)
water, switch should be forward in “LO” position. Also,
Controlstik sensor pointer should face in direction of
High (500-5000 micromhos) or Low (5-500) scale to
agree with Box range switch setting. To change pointer
loosen set screw with 9/64 inch Allen wrench. Turn
pointer to opposite scale. Lift the rod to the other side
of the set screw and place back under the wide part
of the pointer plate. Retighten set screw with fingers,
allowing inside probe to move within sheath.
2. Turn on the power by connecting the transformer box
to 120 Volt AC (or correct voltage for model being
installed). POWER light on Transformer Box will glow.
3. Bring Controlstik (sensor) electrodes together by sliding
the inside probe completely forward. Use a screwdriver
to “short” the inside cone electrode to the outside band
electrode. This “short” will turn on valve; VALVE light on
Transformer Box will glow and valve will open.
4. Remove “short” between electrodes. VALVE light will
go out and valve will shut off.
E. Initial Setting and Operation
1. Fill pail with water from rinse tank inlet water line.
2. Move inside probe of the Controlstik (sensor) back to
highest scale reading and submerge into pail of water.
3. Slowly push inside probe toward opposite end,
stopping when Solenoid Valve triggers and VALVE light
goes on. Water will begin to flow into the tank. Read
scale.
4. For the initial setting, move the inside probe back to
read at least 25% higher than the scale reading in step
3. Tighten set screw with 9/64" Allen wrench (finger
tight is not sufficient).
5. Place the Controlstik (sensor) back into the rinse tank
as described under Section A. Mounting, number 2.
Fasten the cord with the securing clamp provided.
6. Check setting and overall operation by rinsing parts or
by pouring a small amount of acid or alkaline solution
into the rinse tank to trigger the Solenoid Valve and
start water flow.
7. Adjust valve flow control handle to obtain desired
flow rate. Check through at least one complete on/off
cycle. This valve can also be operated manually. To
disengage the solenoid (convert valve to manual
operation) hold the cross handle firmly and loosen
(counterclockwise) the bolt in the center of the stem.
Some water will spurt out at the stem while it is under
manual control.
NOTE: The best Controlstik (sensor) setting can be determined
with experience. Since the main objective of the
system is to conserve water use, a high conductivity
setting on the sensor is desirable . . . as long as the
water does not become too dirty, preventing effective
rinsing. However, if the sensor is set too low, the water
will flow continuously due to the normal conductivity
(total dissolved solids) in source water - defeating the
purpose of the system.
MAINTENANCE
A. Controlstik (sensor)
Although this system is very stable, the sensor should be
regularly checked for hard water scale, which will lower
its sensitivity. Scale can be easily removed by agitating
sensor in a 2-10% hydrochloric acid solution. If scale
has been allowed to build up for a long period, a bristle
brush may also be used. The Controlstik (sensor) may be
disassembled by removing the set screw and thoroughly
cleaned if it should accidentally become completely fouled.
B. Valve
Should the Controlstik Rinse Tank System no longer
activate the Solenoid Valve when the inside probe is
intentionally “shorted,” unscrew the solenoid from the side
of the valve and check the chamber for any solid matter
which may prevent easy solenoid movement.
Manual Override Knob
Adjustable
Flow Control
Solenoid
Direction
of Flow
2. SOLENOID VALVE
Set Screw / Pointer
High Scale
(500-5000 micromhos)
Inside Electrode
Outside Electrode
3. CONTROLSTIK
(Sensor)
Sliding Inside Probe
Low Scale
(5-500 micromhos)
2