Installation Guide -
with E-gap Eductors
(ASSE 1055 Approved)
1. Proportioner unit
2. Wall bracket
3. Supply tubing
4. Metering tip kit(s)
5. Discharge tube for each eductor
6. Instruction sheet
7. Install Kit including:
(5) Screws, (5) Anchors, (3) Washers,
(1) Hosebarb "Y", (5) In-line check valves,
(4) weights, (4) Foot strainers,
(8) Product labels, (1) Hose hook
Warning, Please read precautions thoroughly before operation. Must meet all applicable local codes and regulations.
THANK YOU FOR YOUR INTEREST IN OUR PRODUCTS
Please use this equipment carefully and observe all warnings and cautions.
protective clothing and eyewear when dispensing chemicals or other materials or when working in the vicinity of all
chemicals, filling or emptying equipment, or changing metering tips.
observe safety and handling instructions of the chemical manufacturer.
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
reassemble equipment according to instruction procedures. Be sure all components are firmly screwed or latched into
equipment clean to maintain proper operation.
only to water tap outlets (25 PSI Minimum, 85 PSI Maximum and Maximum water temperature 120° F).
if the unit is used to fill a sink, or the discharge hose can be placed into a sink. The unit must be mounted so that the
bottom of the cabinet is above the overflow rim of the sink.
10098562 Rev A 9/16
1. Find suitable place close to a water source for unit. Remove wall bracket from packaging, place level on wall and mark (3) mounting
holes. Drill (3) 5/16” holes and install anchors in wall. Secure wall bracket to wall with screws and washers provided.
NOTE: The distance from the top of the wall bracket to the top of the cabinet is 1/8”.
2. Place the cabinet onto the wall bracket aligning the tabs with the slots in the top of the cabinet. Also ensure the central snap on top
of the wall bracket engages the cabinet. Mark the wall using the (2) lower holes, as guides, then remove cabinet from wall. Drill (2)
5/16” holes and install anchors in wall.
3. Select metering tips (up to four) for each 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 for chemical.
(This may be used for dispensing water only). (See Metering Tip Chart below)
4. Cut supply tube provided into separate supply tubes for each product dispensed. Use“Y” fittings to connect both high and low flow
eductor to single container. Supply tubes should reach from hose barb on educator to the bottom of container for easy replacement
of chemical. (See diagram page 3.) Prepare a tube for each barb of select valve. Supply tube routing to lower containers should pass
through circular notch in the shelf back. NOTE: ARROW ON CHECK VALVES SHOULD BE POINTED TOWARD THE EDUCTOR.
5. A short discharge tube is used with the 1GPM eductor; minimum tube length is 8 inches (20cm) for proper operation. Longer tubes
(4 feet) are used with a 3.5GPM eductor. Do not remove the flooding rings from inside the tubes. Install hose hook on longer tube to
allow discharge tube to conveniently hang from dispenser when not in use.
6. 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. Maximum Pressure 85 PSI, Maximum water Temperature 120° F.)
7. Place the cabinet back onto the wall bracket (see #2) and secure the bottom of the cabinet to the wall with the screws provided.
NOTE: IT IS REQUIRED THAT THE BOTTOM (2) SCREWS BE INSTALLED.
8. Install optional drip tray by aligning the four tabs on the tray with the four slots in the lower cabinet and push down.
9. If maintenance is required, remove the medallion cover from the unit by pushing inward on the two snap features located inside near
the bottom of the medallion and rotate upwards. These snaps can be accessed by unlocking and opening the doors (See Page 3).
10. Replace medallion cover. Insert the upper medallion tabs into the cabinet slots and swing down to engage lower medallion snaps
on the inside of the cabinet. Ensure selector knobs are properly aligned. (See Diagram Page 3).
1. Connect opposite end of water inlet hose to water supply. Turn on water supply.
2. Purge air from the system by depressing the buttons briefly. There may be some water discharge from the eductor vents until the air
3. To operate button fill units, depress button to dispense product, release button to stop flow. IF YOU WISH TO BE ABLE TO LOCK
THE BUTTON IN THE “ON” POSITION: Depress button and slide button lock up, TO UNLOCK, DEPRESS BUTTON AND RELEASE.
AT 40 PSI FOR WATER-THIN PRODUCTS (1.0 CP)
Metering Tip Selection:
Ratio (per Eductor Flow)
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 3.5 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 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.
10098562 Rev A 9/16
Key Part number Description
Door, right side
Door, left side
Drip Tray, dark grey (Optional)
Kit, Bracket, valve, 2 button
Kit, water inlet
Kit, Pipe plug, 3/8 plastic
Kit, ASM water valve,spring,magnet
Valve parts kit
d. valve bonnet
3.5 GPM eductor assembly
1.0 GPM eductor assembly
Select valve replacement kit
Clip, E-Gap select
Metering tip kit
1.0 GPM discharge tube
with flooding ring (8")
3.5 GPM discharge tube
with flooding ring (4')
Hose Hook, 1/2"
Kit, single pick-up
Kit, dual pick-up
Access for Maintenance
10098562 Rev A 9/16
1. No discharge
2. No concentrate draw
a. Metering tip or eductor has
b. Low water pressure
Magnetic valve not functioning
Clogged water inlet strainer
c. Discharge tube and/or flooding
ring not in place
d. Concentrate container empty
e. Inlet hose barb not screwed
into eductor tightly
f. Clogged water inlet strainer
g. Incorrect check valve installation
h. Air leak in chemical pick-up tube
i. Selector out of position
Open water supply
Install valve parts kit
Clean* or replace
Disconnect inlet water line and clean
a. Clean (descale)* or replace
b. Minimum 25 PSI (with water running)
required to operate unit properly
c. Push tube firmly onto eductor discharge
hose barb, or replace tube if it doesn't
have a flooding ring.
d. Replace with full container
e. Tighten, but do not overtighten
f. Disconnect inlet water line and clean
g. See diagram page 3
h. Put clamp on tube or replace tube if brittle
i. Assure selector is in position desired
3. Excess concentrate draw
a. Metering tip not in place
a. Press correct tip firmly into barb on
4. Failure of unit to turn off
a. Water valve parts dirty or
b. Magnet doesn't fully return
c. Push button stuck
a. Clean* or replace with valve parts kit
b. Make sure magnet moves freely.
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. Door will not close properly
a. Hinges disengaging from cabinet
a. Re-snap hinges into cabinet before
* 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.
Hydro Systems 3798 Round Bottom Road, Cincinnati, OH 45244 Phone: (513) 271-8800 Fax: (513) 271-0160
10098562 Rev A 9/16