HydroChem 919 - United Labs, Inc.

HydroChem 919 - United Labs, Inc.
Troubleshooting Guide:
Problem
Cause
Solution
1. No discharge
a . No water
b. Excessive water pressure
a . Open water supply
b. Install regulator if pressure
exceeds 85 PSI
c. Clean* or replace
c. Eductor clogged
2. No concentrate draw
a . Clogged check valve
b. Metering tip clogged
c.
d.
e.
f.
Eductor clogged
Clogged water inlet
Clogged foot strainer
Low water pressure and/or
volume
g. Concentrate container empty
h. Check valve not screwed into
eductor firmly
a . Clean or replace
b. Rinse in hot water or replace:
DO NOT REAM CLEAN!
c. Clean or replace
d. Clean screen
e . Clean or replace
f. Minimum 25 PSI and 4 GPM
flow required to operate unit
g. Replace with full container
h. Tighten, but DO NOT OVER
TIGHTEN!
3. Excess concentrate draw
a . Metering tip not in place
(Or wrong metering tip)
a . Press correct tip firmly into barb
4. Water flow won't shut off
a . Ball valve defective
a . Replace
5. Leaks at plastic tube
a . Compression nut loose
a . Tighten nut 1/2 turn
6. Low or no water flow
a . Inlet screen clogged
b. Supply source inadequate
c. Scaled eductor or fittings
a . Clean or replace
b. 4 GPM flow necessary to unit.
Move unit or replumb incoming
line.
c. Clean* or replace
a . Eductor check valve inoperable
a . Clean or replace check valve
7. Backflow into concentrate
* In hard water areas, scale (mineral deposits) may form at the discharge of the eductor. This scale may be
removed by soaking the eductor in a descaling (deliming) solution or by running the descalant through the
system. When removing an eductor for soaking, firmly grasp the eductor and unthread the adapters located
above and below the eductor. Replace in the same manner.
HydroChem 919
Multifunction Proportioning and Dispensing System
Wall mounted, high volume washing, foaming and/or sanitizing proportioner with two product eductors.
THANK YOU FOR YOUR INTEREST IN OUR PRODUCTS
Hydro Systems manufactures quality proportioning and dispensing equipment. Please use this equipment carefully and
observe all warnings and cautions.
************************************************************NOTE********************************************************
WEAR
protective clothing and eyewear when dispensing chemicals or other materials.
ALWAYS
observe safety and handling instructions of the chemical manufacturers.
ALWAYS
direct discharge away from you or other persons or into approved containers.
ALWAYS
dispense cleaners and chemicals in accordance with manufacturer's instructions. Exercise
CAUTION when maintaining your equipment.
CLEAN
equipment after each use in accordance with instruction sheet.
WEAR
protective clothing and eyewear when working in the vicinity of all chemicals, filling or emptying
equipment or changing metering tips.
ALWAYS
re-assemble equipment according to instruction procedures. Be sure all components are firmly
screwed or latched into position.
ATTACH
only to tap water outlets (85 PSI maximum).
Package includes:
-- complete unit mounted on stainless steel front plate
-- (2) 7-foot vinyl product suction tubes with foot strainers
-- (1) metering tip kit
-- (4) screws and (4) wall anchors for wall mounting (use 9/32" drill)
-- parts list and product structure diagram
Instructions for Operation:
1. Attach unit to wall using hardware provided.
2. Select metering tip (see section on metering tip selection) and press firmly into hose barb provided at the side
of the eductor. Install product suction tube on hose barb. The strainer end of the suction tube can be dropped
directly into the concentrate container.
3. Connect water inlet hose with 3/4" male garden thread to female swivel at top left side of unit. Tighten to avoid
leaking.
4. Connect discharge hose to male 3/4" discharge provided at bottom of unit. Hose of 1/2" ID is recommended
if the hose length will be 50 feet or less. Use 3/4" ID hose if the total length of the hose will exceed 50 feet.
5. Turn on water supply to unit. Minimum 25 PSI water pressure is required to operate the unit.
6. Turn on product valve to begin proportioning and dispensing. Shut off the valve and turn on rinse (bottom) lever
for full volume rinse. Note: You may only use either one product or the rinse feature - only one valve may be
in use at a time.
Metering Tip Selection:
The final concentration of the dispensed solution is related to the size of the metering tip orifice, the viscosity of the
liquid being siphoned, water pressure, water flow rate, and other factors in the application. A chart is provided on
the next page which can be used as a guideline for selecting a metering tip when proportioning water-thin
concentrates. Test the actually achieved dilution using the Measurement of Concentration procedure discussed
on the next page. If product viscosity is greater than that of water, choose a tip with a larger orifice than that which
would deliver the desired water-to-product ratio for a water-thin product. Test the actually achieved ratio using the
Measurement of Concentration procedure on the next page. Continue to choose and test tips until the desired
dilution is achieved. One clear, undrilled tip is supplied to permit drilling orifice sizes not listed if necessary.
Hydro Systems 3798 Round Bottom Road, Cincinnati, OH 45244 s Phone: (513) 271-8800 s Fax:(513) 271-0160
10084409
Rev. B 1/06
CONVERSION CHART:
Ratio Equivalents to
Standard Measures
APPROXIMATE DILUTIONS
AT 40 PSI FOR WATER-THIN PRODUCTS (1.0 CP)
Tip Color
No Tip
Gray
Black
Beige
Red
White
Blue
Tan
Green
Orange
Brown
Yellow
Aqua
Purple
Pink
Lt. Purple
Orifice
Size
.187
.128
.098
.070
.052
.043
.040
.035
.028
.025
.023
.020
.018
.014
.010
.009
Std. Drill
Number)
Ratio
Oz./Gal.
Ratio
%
(3/16)
(30)
(40)
(50)
(55)
(57)
(60)
(65)
(70)
(72)
(74)
(76)
(77)
(79)
(87)
(89)
10:1
10:1
10:1
12:1
16:1
24:1
28:1
32:1
48:1
64:1
80:1
96:1
128:1
256:1
384:1
512:1
128
64
32
21
16
14
8
6
4
3
2
1
1/2
1/4
1:1
2:1
4:1
6:1
8:1
9:1
16:1
24:1
32:1
48:1
64:1
128:1
256:1
512:1
50.0
33.3
20.0
14.3
11.1
10.0
5.9
4.0
3.0
2.0
1.5
0.8
0.4
0.2
1
2
3
4
5
a
6
7
8
9
10
11
12
13
14
15
238100
2767-K
10091700
10075925
10084020
10088100
10067810
440800
10069270
506502
276800
10091721
10005803
10091720
605400
10084701
4
5
16
17
18
17
PARTS LIST (Refer to diagram)
Part Number
2 1
3
6
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
water/product mixture, and the amount of concentrate used in preparation of the solution dispensed. The
water-to-product ratio is then calculated as follows:
Dilution (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.
Key #
HydroChem Parts Diagram:
7
16
8
9
10
11
Description
Key #
Part Number
Description
Strainer washer
Connector swivel
Brass top manifold
Pipe plug
Ball valve (includes a)
Yellow handle sleeve
Pipe nipple
3.5 GPM eductor
Check valve - Viton*
Swivel nut
Swivel stem, short
Brass bottom manifold
Nut
Cover
Hose hanger
Hex nipple
16
10082900
a
b
17
18
19
20
21
22
10082905
10082906
10082901
10082950
10027209
500814
509900
609600
Compression fitting
(includes a,b)
Body
Compression nut
Brass sleeve for tubing
Tube, cut
Metering tip kit
Suction tube
Ceramic weight
Foot strainer
*EPDM check valve available: order 10069271
19
15
20
21
12
13
22
14
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