Dover Hydro AccuDose Series User manual

10084443
Rev. B 11/07
Hydro Systems 3798 Round Bottom Road, Cincinnati, OH 45244 s Phone: [phone] sFax:[phone]
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 3/8" 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.
AccuDose SeriesProportioner
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.
Clip or
bend
these tabs
to
depress
button
into
locked
position.
Troubleshooting Chart:
*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
60 PSI (flowing)
d. Eductor clogged d. Clean* or replace
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 20 PSI (with water running)
required to operate unit properly
d. Discharge tube not in place d. Push tube firmly onto eductor discharge
hose barb
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
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 doesn't 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
6. Water discharge from air a. Restricted discharge hose a. Be sure discharge tube is not immersed,
vents on eductor kinked or elevated. Be sure there is no
liquid in the discharge tube when begin-
ning to operate dispenser
b. High water pressure b. Install pressure regulator if flowing water
pressure exceeds 60 PSI (flowing)
SolutionCause
Problem
THANK YOU FOR YOUR INTEREST IN OUR PRODUCTS
Please use this equipment carefully and observe all warnings and cautions.
******************************************************NOTE****************************************************
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).
ALWAYS
ALWAYS
ALWAYS
WEAR
ALWAYS
WEAR
KEEP
ATTACH

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 Mea-
surement of Concentration Procedure below to
achieve your desired water-to-product ratio. Be-
cause dilution can vary with water temperature
and pressure, actual dilution achieved can only be
ascertained by using the Measurement of Con-
centration Procedure. The clear, undrilled tip is
provided to permit drilling to size not listed should
you need a dilution ratio that falls between stan-
dard 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-prod-
uct 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
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.
AccuDose Parts Diagram:
7
5
6
8
4
3-button unit illustrated
23 1
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
Ratio (per Eductor Flow)
4 GPM
Tip Color
APPROXIMATEDILUTIONS
AT 40 PSI FOR WATER-THIN PRODUCTS (1.0 CP)
Orifice Std. Drill
Size Number 1 GPM
AccuDose Parts Diagram/List:
DescriptionPart No.Key
1 238100 Strainer washer
2 10082830 Swivel collar (molded)
3 10082801 Swivel stem (molded)
4 10075911 Hex nipple (3-button unit only)
10075902 Nipple (2-button unit only)
10075950 O-ring (two required per nipple)
5 10082821 Connector fitting
6 10082840 Connector fitting cap
7 10080710 Button, dark grey (standard)
10080711 Button, sky blue
10080712 Button, red
10080713 Button, green
10080714 Button, light grey
10080715 Button, yellow
8 10080891 Cabinet set, 1-button unit
10080892 Cabinet set, 2-button unit
10080893 Cabinet set, 3-button unit (shown)
9 10075980 Valve parts kit
a. diaphragm
b. armature
c. spring
d. valve bonnet
10 10079010 Spring
11 10079000 Magnet
12a 10035310 Vacumn breaker
b 270702 Washer
13a 440205 1 GPM eductor
b 441200 4 GPM eductor
c 3401-r Hose barb assembly
14a 6422-A 1 GPM discharge tube (7")
b 90048495 4 GPM discharge tube (4')
15 690014 Metering tip, kit
16 500870 Tubing 1/4" x 7'
17 509900 Weight
18 10089410 Footvalve --Vtion (EPDM also
available. Order 10076302.)
19* 10080730 Hose hook, dark grey (standard)
10080731 Hose hook, sky blue
10080732 Hose hook, red
10080733 Hose hook, green
10080734 Hose hook, light grey
10080735 Hose hook, yellow
* Hose hooks are for 4 GPM discharge tubes
NOT SHOWN:
641750 Security screws (for cabinet sides)
19
9
abc d
12a & 12b
10 11
15
13a,b&c
16
17
18
14 a & b