Hydro AccuDose Series User manual

AccuDoseSeriesProportioner
Model38761
withE-gapEductors
InstallationandOperation:
1. Remove cabinet cover. Drill holes for the three wall anchors with a 7mm drill bit, using the cabinet back as a template
for correct 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 than1.8m
above the bottom of the concentrate container, nor below the highest concentrate level (never mount the concentrate
higher than the proportioner).
2. Select metering tips (up to 4) for the selector valve. (see next two sections) Push each tip firmly into a separate hose
barb extending from the selector valve. A tip with no hole (clear plastic) can be used to block any valve port not being
used. (This may be used for dispensing water only). Select and install a metering tip for the single product eductor
(right side) in the same manner.
3. Cut tubing provided into separate supply tubes for each product to be dispensed (tubing allows 2.1m of tube per
product). Supply tubes should reach from hose barb on the selector valve body and eductor to bottom of concentrate
container. Slide ceramic weights over one end of each tube and slide foot valves into the same ends of the tubes.
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 4 LPM eductor; minimum tube length is 200mm) for correct operation.
Longer tubes (1.2m) are used with a 14 LPM 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 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 13mm ID to water inlet swivel. (Minimum 1.76 Bar pressure, with water running,
is required for correct 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
buttonwheneverdispensingisdesired,andreleasebuttontostopflowofsolution. Ifyouwishtobeabletolockthebutton
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.
PackageShouldContain:
1. Proportioner unit.
2. Supply tubing 6.4m total.
3. Foot valve assemblies & weights (5).
4. Discharge tubing for each eductor.
5. Metering tip kits.
6. Mounting anchor kit.
7. Hose hook for 14 LPM eductor.
8. Instruction sheet.
Clip or
bend
these
tabs to
depress
button
into locked
position.

AccuDoseSelectPartsDiagramList:
6
1
Dilution Ratio (X:1) where X = Amount of Mixed Solution — Amount of Concentrate Drawn
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.
1 238100 Strainer washer
2 10082835 Swivel collar (molded)
3 10082806 Swivel stem (molded)
4 10075911 Hex nipple
10075950 O-ring (two per nipple)
5 10075925 Pipe plug
6 10080710 Button, grey (standard)
10080711 Button, sky blue
10080712 Button, red
10080713 Button, green
10080714 Button, light grey
10080715 Button, yellow
7 10080895 Cabinet set
8 10020700 Selector valve grommet
10020900 Back up ring for grommet
9 10075980 Valve parts kit
a. diaphragm, b. armature,
c. spring, d. valve bonnet
Key DescriptionPartNo.
4 LPM 14 LPMTipColor
APPROXIMATEDILUTIONS
AT 2.86 BAR FOR WATER-THIN PRODUCTS (1.0 CP)
Orifice Std.Drill
Size Number) Ratio(perEductorFlow)
No Tip .187 (3/16) 3:1 6.5:1
Grey .128 (30) 3:1 6.5:1
Black .098 (40) 3:1 7:1
Beige .070 (50) 4:1 10:1
Red .052 (55) 5:1 16:1
White .043 (57) 7:1 20:1
Blue .040 (60) 8:1 24:1
Tan .035 (65) 10:1 30:1
Green .028 (70) 16:1 45:1
Orange .025 (72) 20:1 56:1
Brown .023 (74) 24:1 64:1
Yellow .020 (76) 32:1 90:1
Aqua .018 (77) 38:1 128:1
Purple .014 (79) 64:1 180:1
Pink .010 (87) 128:1 350:1
2
3
MeteringTipSelection:
The final concentration of the dispensed solution is
relatedtoboththesizeofthe meteringtipopeningand
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,
consulttheMeasurementofConcentrationProcedure
below to achieve your desired water-to-product ratio.
Becausedilution can varywith water temperatureand
pressure, actual dilution achieved can only be ascer-
tained 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 4 LPM eductor is grey; a 14 LPM eductor is
yellow.Refertopartsdiagramifunfamiliarwithnames
of system components.
MeasurementofConcentration:
You can determine the dispensed water-to-product
ratio for any metering tip size and product viscosity.
Simplyoperatetheprimeddispenserforaminuteorso
andnotetwothings:theamountofdispensedsolution,
and the amount of concentrate used in preparation of
the solution dispensed.
4
5
7
8

10 11
abc
d
9
14LPMEductor(rightside)
13
14
13
10 10079010 Spring
11 10079000 Magnet
12a 290GB 4 LPM eductor kit
b 291GB 14 LPM eductor kit
13 a 10088822 4 LPM discharge tube assembly
b 10074815 14 LPM discharge tube assembly
14 10080730 Hose hook, grey, for
14 LPM discharge tube
15 10080957 Selector replacement kit:
d. support clip, e. Suction stub,
f. O-ring, g. selector valve assembly
16 690014 Metering tip (kit)
17 500814 Tubing, 6mm x 4.25m
18 500821 Tubing, 6mm x 6.4m
19 509900 Weight
20 10076301 Footvalve, viton (EPDM also
available order 10076302)
NOT SHOWN:
641750 Screws (cabinet sides)
16
12b
12c
20
19
18
12a
12b 16
15
efg
d
AccuDose Select Parts Diagram:
Key DescriptionPartNo.

TroubleshootingChart:
* In hard water areas, scale may form inside the discharge end of the eductor, as well as in other areas of the unit that are
exposed to water. This scale may be removed by soaking the eductor in a descaling solution (deliming solution). To remove
an eductor located in the cabinet, firmly grasp water valve and unthread eductor. Replace in same manner. Alternatively,
a scaled eductor can be cleaned (or kept from scaling) by drawing the descaling solution through the unit. Operate the unit
with the suction tube in the descaling solution. Operate the unit until solution is drawn consistently, then flush the unit by
drawing clear water through it for a minute. Replace concentrate container and put suction tube into concentrate.
1. No discharge a. No water a. Open water supply
b. Magnetic valve not functioning b. Install valve parts kit
c. Excessive water pressure c. Install regulator if water pressure exceeds
4.3 Bar (flowing)
d. Eductor clogged d. Clean* or replace
e. Clogged water inlet strainer e. Disconnect inlet water line and clean
strainer
2. No concentrate draw a. Clogged foot valve a. Clean or replace
b. Metering tip or eductor has b. Clean (descale)* or replace
scale build-up
c. Low water pressure c. Minimum 1.76 Bar (with water running)
required to operate unit correctly
d. Discharge tube and/or flooding d. Push tube firmly onto eductor discharge
ring not in place hose barb, or replace tube if it does not
have a flooding ring.
e. Concentrate container empty e. Replace with full container
f. Inlet hose barb not screwed f. Tighten, but do not overtighten
into eductor tightly
g. Clogged water inlet strainer g. Disconnect inlet water line and clean
strainer
h. Air leak in chemical pick-up tube h. Put clamp on tube or replace tube if brittle
i. Selector out of position i. Ensure selector is in position required
3. Excess concentrate draw a. Metering tip not in place a. Press correct tip firmly into barb on
eductor
b. Chemical above eductor b. Place concentrate below the eductor
4. Failure of unit to turn off a. Water valve parts dirty or a. Clean* or replace with valve parts kit
defective
b. Magnet does not fully return b. Make sure magnet moves freely.
c. Push button stuck c. Remove button and clean cabinet/button
to remove any dirt lodged in slide recess
5. Excess foaming in discharge a. Air leak in pick-up tube a. Put clamp on tube or replace tube if brittle
SolutionCause
Problem
10089615
8/00
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