HYDRO 882AG Proportioning unit with Air Gap eductors Instructions

: May 15, 2024
: HYDRO

Table of Contents

Safety Precautions
Introduction
Installation and operation
Metering tip selection
Parts diagram
troubleshooting
Warranty
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

User manual
SinkMaster with Air-Gap eductors
For Models 882AG, 883, 884AG, 885AG, 886AG

Safety Precautions

WARNING! Read and fully understand the user manual before operating this product.

THANK YOU FOR YOUR INTEREST IN OUR PRODUCTS
Please use this equipment carefully and observe all warnings and cautions.
WEAR 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.
ALWAYS 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 your equipment. reassemble equipment according to instruction procedures. Be sure all components are firmly screwed or latched into position.
KEEP equipment clean to maintain proper operation.
ATTACH only to water tap outlets (25 psi Minimum, 85 psi Maximum and Maximum water temperature 120° F).
NOTE 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.
Device shall be installed in a vertical orientation. A plumbed, dedicated line is preferred for installation. When a dedicated line is not available, installation shall ensure that no cross-connections between hot and cold water are created, and that atmospheric vaccum breakers integrated into the building water supply are not negatively affected by being under pressure for over 12 continuous hours.

Introduction

Package Contents

Proportioning unit 4) Discharge tubes.
Suction tubing| 5) Metering tip kit(s)
Foot valves and weights.| 6) Mounting anchor kit.

Installation and operation

Installation

Hold unit up to wall and drill holes for the wall anchors with a 9/32” drill. Install mounting anchors, and then install screws into top two anchors. Slide key holes at top of dispenser over screw heads. Install bottom two screws through holes in cabinet. Tighten all screws. Do not mount more than 6 ft. (1.8 m) above bottom of concentrate container, nor below the highest concentrate level (never mount your concentrate higher than the dispenser). Turn ball valves so they are in a horizontal position (pointing left and right).
Select metering tips (see next section) and insert a tip into each hose barb on the eductor bodies.
Suction tubes should reach from hose barbs on eductors to bottoms of concentrate containers. Cut tube supplied to lengths required. (There is enough tube for 7 feet of tube per eductor.) Slide a weight over one end of each suction tube and slide a foot valve into the same ends of the tubes.
Slip open ends of suction tubes over the hose barbs/metering tips on the eductors (one at each side).
If required, the optional Foam/Froth Reducing Tube can be slid on the end of the grey 1 GPM eductor. Push the tube on as far as possible. Warm the end of the tube for easy installation. This tube wil reduce the amount of foam that might occur with some chemicals. It is not needed it your chemical does not foam
Install discharge tubes. Put the ends of the tubes into the appropriate sink compartments.
Place foot valve ends of supply tubes into concentrate containers. REMEMBER TO CHECK FOOT VALVE STRAINER PERIODICALLY FOR CLOGGING: CLEAN IF NECESSARY.

Operation

Connect water supply hose of at least ½” ID to water inlet swivel. (Minimum 25 psi pressure, with water running, is required for proper operation.) Connect other end of hose to water supply. Turn water supply on.
Purge air from the system by opening the ball valves briefly. (Ball valves will be in vertical position — pointing up and down — when open.) There may be some water discharge from the eductor vents until the air is purged.
Open one ball valve to start flow of desired water/concentrate solution, and run unit until supply tube is primed (filled). Repeat priming operation for other ball valve. Then, open ball valves when dispensing is desired. Close ball valves to stop flow of solution.
It is essential that the discharge hose not be obstructed. If discharge is restricted, water will flow out the eductor vents.

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 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 1.0 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:

APPROXIMATE DILUTIONS
AT 40 psi FOR WATER-THIN PRODUCTS (1.0 CP)

APPROXIMATE DILUTIONS
AT 40 psi FOR WATER-THIN PRODUCTS (1.0 CP)

Tip Color| Orifice Size| Std. Drill Number| Ratio
No Tip| 0.187| 42430| 0.2507
Gray| 0.128| 30| 0.2507
Black| 0.098| 40| 0.2924
Beige| 0.07| 50| 0.5007
Red| 0.052| 55| 0.834
White| 0.043| 57| 1.1674
Blue| 0.04| 60| 1.334
Ta n| 0.035| 65| 1.8757
Green| 0.028| 70| 3.334
Orange| 0.025| 72| 3.959
Brown| 0.023| 74| 5.0007
Yellow| 0.02| 76| 6.2507
Aqua| 0.018| 77| 7.9174
Purple| 0.014| 79| 12.501
Pink| 0.01| 87| 31.251
Lt. Purple| 0.009| 89| 36.459

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.

Parts diagram

HYDRO 882AG Proportioning unit with Air Gap eductors - parts
diagram

Key	Part No.	Description
1	HYD238100	Strainer washer
2	HYD276800	Swivel stem
3	HYD506502	Swivel nut
4	HYD133000	Branch tee
5	HYD10027700	3/8” nipple (For 2 product only)
6	HYD323338	Pipe plug, brass
7	HYD10080320	Ball valve

troubleshooting

Problem	Cause	Solution
1. No discharge	a. No water	a. Open water supply
b. Clogged water inlet strainer	c. Disconnect inlet water line and clean

strainer
c. Eductor clogged| e. Clean or replace
2. No concentrate draw| a. Clogged foot valve| a. Clean or replace
b. Metering tip or eductor has scale build-up| b. Clean (descale) or replace
c. Low water pressure| c. Minimum 25 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 is empty| e. Replace with full container
f. Inlet hose barb not screwed into eductor tightly| f. Tighten, but do not overtighten
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 eductor
4. Water discharge from air vents of eductor| a. Restricted discharge hose| a. Be sure discharge tube is not immersed, kinked or elevated. Be sure there is no liquid in the discharge hose when beginning to operate dispenser.
b. High water pressure| b. Install pressure regulator if flowing water pressure exceeds 85 psi.

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.

Warranty

Limited Warranty
Seller warrants solely to Buyer the products will be free from defects in material and workmanship under normal use and service for a period of one year from the date of completion of manufacture. This limited warranty does not apply to (a) hoses; (b) products that have a normal life shorter than one year; or (c) failure in performance or damage caused by chemicals, abrasive materials, corrosion, lightning, improper voltage supply, physical abuse, mishandling or misapplication. In the event the products are altered or repaired by Buyer without Seller’s prior written approval, all warranties will be void. No other warranty, oral, expressed or implied, including any warranty of merchantability or fitness for any particular purpose, is made for these products, and all other warranties are hereby expressly excluded. Seller’s sole obligation under this warranty will be, at Seller’s option, to repair or replace F.O.B. Seller’s facility in Cincinnati, Ohio any Products found to be other than as warranted.

Limitation of Liability
Seller’s warranty obligations and Buyer’s remedies are solely and exclusively as stated herein. Seller shall have no other liability, direct or indirect, of any kind, including liability for special, incidental, or consequential damages or for any other claims for damage or loss resulting from any cause whatsoever, whether based on negligence, strict liability, breach of contract or breach of warranty.

Hydro Systems
3798 Round Bottom Road Cincinnati, OH 45244
Phone 513.271.88OO
Toll Free 8OO.543.7184
Fax 513.271.O16O
Web hydrosystemsco.com
HYD10080340 Rev E 12/23