Hydro AccuDose 3876GB-2 Instruction manual

Installation and Operation:
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 than
(1.8 metres) above the bottom of the concentrate container, nor below the highest concentrate level (never mount
your 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 for 200mm of tube
per product). Supply tubes should reach from hose barbs on the selector valve body and eductor to bottom of
concentrate containers. Slide ceramic weights over one end of each tube and slide foot valves into the same ends
of the tubes.
4. Slip open end of each supply tube through an opening in either side of the cabinet and push over a hose barb/
metering tip on the selector valve and on the eductor.
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 (selector valve); minimum tube length is 20 cm for
correct operation. A longer tube (1.2m) is used with the 16 LPM eductor. Slide end of tube with flooding ring over
eductor discharge outlet. The hose hook supplied may be installed on the long tube to allow it 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 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. Purge air from the system by depressing the buttons briefly.
10. 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.
(Seediagram.) This allows the button to be fully depressed and allows it to latch in the "on" position. To unlock, pull
the button out.
AccuDose Series Proportioner Model 3876GB-2
Package Should Contain:
1. Proportioner unit.
2. Supply tubing : 650mm total.
3. Foot valve assemblies & weights (5).
4. Discharge tube for each eductor.
5. Metering tip kits.
6. Mounting anchor kit.
7. Hook for 16 LPM discharge tube.
8. Instruction sheet.
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 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
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 16 LPM 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:
5
7
8
4 23 1
6
1238100 Strainer washer
210082835 Swivel collar (molded)
310082806 Swivel stem (molded)
410075911 Hex nipple
10075950 O-ring (two per nipple)
510075925 Pipe plug
610080710 Button, dark grey (standard)
10080711 Button, sky blue
10080712 Button, red
10080713 Button, green
10080714 Button, light grey
10080715 Button, yellow
710080895 Cabinet
810020700 Selector valve grommet
10020900 Back up ring for grommet
910075980 Valve parts kit
a. diaphragm, b. armature,
c. spring, d. valve bonnet
10 10079010 Spring
11 10079000 Magnet
12 10035310 Siphon breaker
13 270702 Washer
14a440215 4 LPM Eductor assembly
b441210 16 LPM Eductor assembly
c3401-R Eductor hose barb only
15a6422-A 4 LPM outer discharge tube
b10074815 16 LPM outer discharge tube
DescriptionPart No.Key
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)
16 LPM
Tip Color
APPROXIMATE DILUTIONS
AT 2.86 BAR FOR WATER-THIN PRODUCTS (1.0 CP)
Orifice Std. Drill
Size Number 4 LPM

AccuDose Parts Diagram/List:
16 LPM Eductor (right side)
16* 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 16 LPM discharge tubes
17 10061100 Support
18 10080920 Selector valve replacement kit:
e. Suction stub, f. O-ring, g. selector
valve assembly
19 690014 Metering tip (kit)
20 500870 Tubing, 6mm x 2.1 m
21 509900 Weight
22 10076301 Foot valve -- Viton (EPDM also
available. Order 10076302.)
NOT SHOWN:
641750 Security screws (for cabinet sides)
DescriptionPart No.Key
910 11
12
13
14a
18 19
17
19
e
15a
22
21
20
15b
14b
14c
19
20
21
22
16
fg
adb c

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 vacuum breaker 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
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 1.43 (with water running)
required to operate unit properly
d. Discharge tube(s) not in place d. Push tube firmly onto eductor discharge
or flooding ring missing from hose barb; be sure inner discharge tube
inner discharge tube is installed and has 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. Selector out of position h. Assure selector is in position desired
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
b. Inner discharge tube not in place b. Install inner discharge tube
SolutionCause
Problem
10084450
Hydro Systems Europe Ltd, Unit 3, The Sterling Centre, Eastern Road, Bracknell, Berks RG12 2PW UK
Tel: [phone]
Fax: [phone]
www.hydrosystemseurope.com