Hydro AccuDose User Manual
AccuDose Series Proportioner
1, 2, or 3 button units
Package Should Contain:
1. Proportioner unit.
2. Supply tubing.
3. Foot valve assembly & weight for each eductor.
4. Discharge tube for each eductor.
5. Metering tip kit(s).
6. Mounting anchor kit.
7. Hook(s) for discharge tube(s) -- Models with 4 GPM eductors only.
8. Instruction sheet.
THANK YOU FOR YOUR INTEREST IN OUR PRODUCTS
Please use this equipment carefully and observe all warnings and cautions.
****************************************************** NOTE ****************************************************
WEAR
ALWAYS
ALWAYS
ALWAYS
KEEP
WEAR
ALWAYS
ATTACH
protective clothing and eyewear when dispensing chemicals or other
materials.
observe safety and handling instructions of the chemical manufacturers.
direct discharge away from you or other persons or into approved containers.
dispense cleaners and chemicals in accordance with manufacturer's
instructions. Exercise CAUTION when maintaining your equipment.
equipment clean to maintain proper operation.
protective clothing and eyewear when working in the vicinity of all
chemicals, filling or emptying equipment or changing metering tips.
re-assemble equipment according to instruction procedures. Be sure all
components are firmly screwed or latched into position.
only to tap water outlets (85 PSI maximum).
Installation and Operation:
1. Remove cabinet cover. Drill holes for the three wall anchors with a 5/16" drill bit, using the cabinet back as a template
for proper spacing of the mounting screws. Install mounting anchors, and then screws in top two anchors. Slide key holes in cabinet back over screw heads, tighten screws,
then install bottom screw. Do not mount more than 6 feet (1.8 meters) above the bottom of the concentrate container, nor below the highest concentrate level (never mount your concentrate higher than the proportioner).
2. Select a metering tip (see next section), and insert into hose barb on eductor body. (Repeat for all eductors.)
3. Supply tube should reach from hose barb on eductor to bottom of the concentrate container. Cut supply tube provided to
length required. Slide a ceramic weight over one end of tube and slide a foot valve into the same end of the tube. (Prepare
a tube for each eductor.)
4. Slip other end of supply tube through an opening in either side of the cabinet and push over the hose barb/metering tip
on the eductor. (Repeat for all eductors.)
5. Place foot valve ends of supply tubes into concentrate containers. REMEMBER TO CHECK FOOT VALVE STRAINERS
PERIODICALLY FOR CLOGGING: CLEAN IF NECESSARY.
6. A short discharge tube is used with the 1GPM eductor; minumum tube length is 8 inches (20cm) for proper operation.
Longer tubes (4 feet) are used with a 4 GPM eductor. Do not remove the flooding rings from inside the tubes. Slide end
of tube with flooding ring over eductor discharge outlet. (Repeat for all eductors.) Hooks may be installed on longer tubes
to allow discharge tube to conveniently hang from dispenser when not in use.
7. Replace cabinet cover. Push the sides in, behind the latch holes, to snap the cover in place. The two screws provided may
be installed in the holes in the cabinet sides to prevent easy removal of cover.
8. Connect water supply hose of at least 1/2" ID to water inlet swivel. (Minimum 25 PSI pressure, with water running, is required
for proper operation.) Connect opposite end of hose to water supply. Turn water supply on.
9. Push button to start flow of desired water/concentrate solution, and hold until supply tube is primed (filled). Then push the
button whenever dispensing is desired, and release button to stop flow of solution. If you wish to be able to lock the button
in the "on" position: clip or bend the two tabs behind the lower front portion of the
button (see diagram). This allows the button to be
fully depressed and allows it to latch in the "on" position. To unlock, pull the
button out.
Clip or
bend
these tabs
to
depress
button
into
locked
position.
Metering Tip Selection:
The final concentration of the dispensed solution
is related to both the size of the metering tip
opening and the viscosity of the liquid being
siphoned. For water-thin products, the chart at
right can be used as a guideline. If product is
noticeably thicker than water, consult the Measurement of Concentration Procedure below to
achieve your desired water-to-product ratio. Because dilution can vary with water temperature
and pressure, actual dilution achieved can only
be ascertained by using the Measurement of
Concentration Procedure. The clear, undrilled tip
is provided to permit drilling to size not listed
should you need a dilution ratio that falls between
standard tip sizes.
NOTE: A 1 GPM eductor is grey; a 4 GPM eductor
is yellow. Refer to parts diagram if unfamiliar with
names of system components.
Measurement of Concentration:
You can determine the dispensed water-to-product ratio for any metering tip size and product
viscosity. All that is required is to operate the
primed dispenser for a minute or so and note two
things: the amount of dispensed solution, and the amount of concentrate used in preparation of the solution dispensed. The
water-to-product ratio is then calculated as follows:
Dilution Ratio (X:1) where X = Amount of Mixed Solution — Amount of Concentrate Drawn
Dilution Ratio, then, equals X parts water to one part concentrate (X:1). If the test does not yield the desired ratio, choose
a different tip and repeat the test. Alternative methods to this test are 1) pH (using litmus paper), and 2) titration. Contact your
concentrate supplier for further information on these alternative methods and the materials required to perform them.
AT 40 PSI FOR WATER-THIN PRODUCTS (1.0 CP)
Tip Color
No Tip .187 (3/16) 2:1 3:1
Grey .128 (30) 2:1 3:1
Black .098 (40) 2:1 4:1
Beige .070 (50) 3:1 8:1
Red .052 (55) 4:1 14:1
White .043 (57) 5:1 20:1
Blue .040 (60) 6:1 24:1
Tan .035 (65) 8:1 30:1
Green .028 (70) 12:1 45:1
Orange .025 (72) 16:1 56:1
Brown .023 (74) 18:1 64:1
Yellow .020 (76) 24:1 90:1
Aqua .018 (77) 32:1 128:1
Purple .014 (79) 45:1 180:1
Pink .010 (87) 128:1 350:1
APPROXIMATE DILUTIONS
Orifice Std. Drill
Size Number
Amount of Concentrate Drawn
Ratio (per Eductor Flow)
1 GPM
4 GPM
AccuDose Parts Diagram
3-button unit illustrated
6
7
:
5
4
23
1
8
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