American Dryer AD-830 User Manual

AD-830

Installation Manual

081696OC

For replacement parts, contact the reseller from which the machine

was purchased or

American Dispensing Company

88 Currant Road

Fall River MA 02720-4781

Telephone: [phone] / Fax: [phone]

E-mail: [e-mail]

ADC Part No. 182714

Retain This Manual In A Safe Place For Future Reference

American Dispensing Company products embody advanced concepts in engineering, design, and safety. If

this product is properly maintained, it will provide many years of safe, efficient, and trouble-free operation.

ONLY properly licensed technicians should service this equipment.

OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment or specified in the installation manual
included with the water vending machine.

WARNING: UNDER NO CIRCUMSTANCES should the pressure switch(es) or other safety

devices ever be disabled.

We have tried to make this manual as complete as possible and hope you will find it useful. ADC reserves the
right to make changes from time to time, without notice or obligation, in prices, specifications, colors, and material,
and to change or discontinue models.

Important

For your convenience, log the following information:

DATE OF PURCHASE ____________________________ MODEL NO. __________________________________________

RESELLER’S NAME _______________________________________________________________________________________

Serial Number(s) ________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

Replacement parts can be obtained from your reseller or the ADC factory. When ordering replacement parts
from the factory, you can FAX your order to ADC at [phone] or telephone your order directly to the ADC
Parts Departmentat [phone]. Please specify the water vending machine model number and serial
number in addition to the description and part number , so that your order is processed accurately and promptly.

The illustrations on the following pages may not depict your particular water vending machine exactly. The
illustrations are a composite of the various water vending machine models. Be sure to check the descriptions of
the parts thoroughly before ordering.

AD-830

IMPORTANT

YOU MUST DISCONNECT and LOCKOUT THE ELECTRIC
SUPPLY BEFORE ANY COVERS or GUARDS ARE REMOVED FROM
THE MACHINE TO ALLOW ACCESS FOR CLEANING, ADJUSTING,
INSTALLATION, or TESTING OF ANY EQUIPMENT per OSHA
(Occupational Safety and Health Administration) STANDARDS.

CAUTION

LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING

MACHINE. WIRING ERRORS CAN CAUSE IMPROPER and DANGEROUS
OPERATION.

FOR YOUR SAFETY

THE SYSTEM IS SHIPPED WITH A PRESERVATIVE SOLUTION MADE
OF SODIUM BISULFITE (IN THE WINTER MONTHS) GLYCERINE. MAKE
SURE THE SYSTEM IS THOROUGHLY PURGED BEFORE LETTING ANYONE
DRINK THE DISPENSED WATER.

REFER TO THE INSTALLATION SECTION ON PURGING PROCEDURE.

CAUTION

Never look directly into the unprotected parts of the U.V. chamber when there is
power to the sterilizer. Serious burns to the eyes and skin may result. Always unplug
power to the sterilizer before working on it.

IMPORTANT

Please observe ALL safety precautions displayed on the equipment and specified

in this manual.

IMPORTANT

The wiring diagram for the water vending machine is located on the inside right

wall of the machine.

Water vending machines must not be installed or stored in an area where it will

be exposed to water or weather.

Table of Contents

SECTION I

IMPORTANT INFORMATION..........................................................................3

A. Receiving and Handling ............................................................................................................... 3

B. Safety Precautions ...................................................................................................................... 3

SECTION II

SPECIFICATIONS/COMPONENT IDENTIFICATION..................................5

A. Specifications ............................................................................................................................. 5

SECTION III

INSTALLA TION PROCEDURES ......................................................................9

A. Location Requirements ............................................................................................................... 9

B. System Description..................................................................................................................... 9

C. Water Supply ........................................................................................................................... 10

D. Feed Water and Drain Plumbing.................................................................................................11

E. Electrical Information .................................................................................................................11

F. Unpacking/Setting Up ............................................................................................................... 12

SECTION IV

SERVICE and PARTS INFORMATION ..........................................................15

A. Resetting The Microprocessor .................................................................................................. 15

B. Service ..................................................................................................................................... 15

C. Parts ........................................................................................................................................ 15

SECTION V

WARRANTY INFORMATION .........................................................................16

A. Returning Warranty Card(s) ...................................................................................................... 16

B. Warranty .................................................................................................................................. 16

C. Returning Warranty Part(s)........................................................................................................ 16

SECTION VI

MAINTENANCE SCHEDULE .........................................................................18

SECTION VII

FILTER MAINTENANCE ................................................................................22

A. Water Filter/Strainer Replacement ............................................................................................. 22

B. Air Filter Inspection and Replacement ....................................................................................... 23

SECTION VIII

REVERSE OSMOSIS (R.O.) MEMBRANE ....................................................24

A. Product Water Flow Rate Measurement .................................................................................... 24

B. Membrane Cleaning.................................................................................................................. 27

C. Storage and Shipping of Membrane .......................................................................................... 30

SECTION IX

ULTRAVIOLET (U.V.) STERILIZER ...............................................................32

A. Ultraviolet (U.V.) Lamp Replacemet Procedure ......................................................................... 32

B. Quartz Sleeve and Cleaning Procedure...................................................................................... 33

C. Ultraviolet (U.V.) Probe Cleaning Procedure ............................................................................. 34

SECTION X

MISCELLANEOUS MAINTENANCE TECHNIQUES ..................................35

A. Drain Bay Cleaning ................................................................................................................... 35

B. Vending Nozzle Adjustment ....................................................................................................... 36

C. Tubing and Fitting Replacement Technique ................................................................................. 36

SECTION XI

TROUBLESHOOTING.....................................................................................38

SECTION I

IMPORTANT INFORMATION

A. RECEIVING and HANDLING

The water vending machine is shipped in a protective stretch wrap cover with protective cardboard corners and
top cover (or optional box) as a means of preventing damage in transit. Upon delivery, the water vending
machine, packaging material, and wooden skid should be visually inspected for shipping damage. If any damage
is noticed, inspect further before delivering carrier leaves.

Water vending machines damaged in shipment:

1. ALL water machines should be inspected upon receipt and before they are signed for.

2. If there is suspected damage or actual damage, the trucker’s receipt should be so noted.

3. If the water vending machine is damaged beyond repair, it should be refused. Those water vending

machines, which were not damaged in a shipment should be accepted, but the number received and the
number refused must be noted on the receipt.

4. If you determine that the water vending machine was damaged after the trucker has left your location, you

should call the delivering carrier’s freight terminal immediately and file a claim. The freight company
considers this concealed damage. This type of freight claim is very difficult to get paid and becomes
extremely difficult when more than a day or two passes after the freight was delivered. It is your responsibility
to file freight claims. Water vending machines and parts damaged in transit cannot be claimed under
warranty.

5. Freight claims are the responsibility of the consignee, and claims must be filed at the receiving end. ADC

assumes no responsibility for freight claims or damages.

6. If you need assistance in handling the situation, please contact the ADC Traffic Manager at (508)

678-9000.

IMPORTANT: The water vending machine must be transported and handled in an upright position at

ALL times.

B. SAFETY PRECAUTIONS

IMPORTANT: Refer to this manual before making any repairs or adjustments, or doing any

maintenance on this machine.

IMPORTANT: For owners who DO NOT personally maintain the machine, it is their responsibility

that the operator has been properly instructed and is fully aware of the manual
contents. This is important in the safe handling and efficient operation of the machine.

3

IMPORTANT: Follow maintenance schedule rigorously. Careless maintenance may lead to

component failure and increase operating costs significantly.

CAUTION: DO NOT make any alteration or modification in the wiring or plumbing of this machine.

Such alterations may result in injury, illness, or death to maintenance personnel, operators,
or users of this machine.

WARNING: DO NOT allow machine to freeze. Freezing will irreparably damage components in the

machine.

NOTE: NEVER LOOK DIRECTLY INTO THE UNPROTECTED PARTS OF THE U.V.

CHAMBER WHEN THERE IS POWER TO THE STERILIZER. SERIOUS
BURNS TO THE EYES and SKIN MAY RESULT. ALWAYS UNPLUG POWER TO
THE STERILIZER BEFORE WORKING ON IT.

NOTE: THE SYSTEM IS SHIPPED WITH A PRESERVATIVE SOLUTION MADE OF

SODIUM BISULFITE and (IN THE WINTER MONTHS) GLYCERINE. MAKE
SURE THE SYSTEM IS THOROUGHLY PURGED BEFORE LETTING ANYONE
DRINK THE DISPENSED WATER. SEE SECTION III ON INSTALLATION
PROCEDURES.

DISCLAIMER

The information contained in this document is subject to change without notice.

American Dispensing Company shall not be liable for technical or editorial omissions made herein; nor incidental
or consequential damages resulting from the furnishing, performance, or use of this material.

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SECTION II

SPECIFICATIONS/COMPONENT IDENTIFICATION

A. SPECIFICATIONS

Reverse Osmosis (R.O.) Membrane Capacity 1,200 gallons* 4.542.2 liters*
R.O. Pump 3/4 HP 0.55 kw
Dispensing Pump 3 gallon/minute 11.36 liters/minute
Drain Pump 3 gallon/minute 11.36 liters/minute
Water Vending Machines Per 20'/40 10/20
Water Vending Machines Per 45'/48 24/26
Voltage Available 115-240v 1Ø 50/60 Hz
Approximate Weight (Uncrated Empty) 1100 lbs. 498.9 kg
Approximate Weight (Uncrated Full/Capacity) 1700 lbs. 771.1 kg
Approximate Weight (Crated) 1200 lbs. 544.3 kg
Water Inlet Size 1/2 N.P.T. **
Drain Outlet Size 1/2 N.P.T. **

Storage Tank Size 93 gallons 352 liters

* These specifications are calculated at 2,000 ppm, total sodium chloride solution at 77º F (25º C) feed water

temperature and 160 PSI (11.03 bars) reverse osmosis (R.O.) pump pressure.

** MUST BE CONNECTED TO A MINIMUM 3/4” N.P.T. INLET WATER SUPPLY.

1. Minimum Pressure Inlet Flow Rate

4 gallons (15.14 liters) a minute at 35 PSI. (2.41 bars) back pressure or the equivalent of 9 gallons (34.06
liters) per minute at a free flowing 1/2” N.P.T. outlet at the intended location of the machine. This test
should be conducted with ALL other equipment connected to the same water line running to reflect true
flow.

2. Maximum Water Pressure

80 PSI. (5.51 bars). Install a pressure regulator if incoming water pressure exceeds this level. High inlet
pressure will irreparably damage filter housings and cause leaks in the system.

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6

B. COMPONENT IDENTIFICATION

7

COMPUTER

LOW PRESSURE SWITCH

HIGH PRESSURE SWITCH

TRA VIOLET STERILIZE

PROGRAMMING SWITCH

DISPLAYS

TRAP DOORS

INLET SOLENOID

DOUBLE CHECK VALVE

TEST CELL

VENDING SOLENOIDS

INLET VALVE

R.O. PRESSURE REGULATOR

EXPANSION TANK

REAR ELECTRICAL

CARBON FILTER

SEDIMENT FILTER

R.O. FILTER

POLISHING FILTER

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SECTION III

INST ALLATION PROCEDURES

Installation should be performed by competent technicians in accordance with local and state codes. In the
absence of these codes, the installation must conform to applicable American National Standards: ANSIZ223.1­LATEST EDITION (National Fuel Gas Code) or ANSI/NFPA NO. 70-LATEST EDITION (National Electrical
Code) or in Canada, the installation must confirm to applicable Canadian Standards: CAN/CGA-B149.1-M91
(Natural Gas) or CAN/CGA-B149.2-M91 (Liquid Propane [L.P.] Gas) or LATEST EDITION (for General
Installation and Gas Plumbing) or Canadian Electrical Codes Parts 1 & 2 CSA C22.1-1990 or LATEST EDITION
(for Electrical Connections).

A. LOCATION REQUIREMENTS

WARNING: Feed water must come from inspected, approved water system only. Source must be

microbiologically safe drinking water.

1. The water vending machine must be installed on a sound level floor capable of supporting its weight. It is

recommended that carpeting be removed from the floor that the water vending machine is to rest on.

2. The water vending machine must not be installed or stored in an area where it will be exposed to water and

weather.

3. Provisions for adequate water supply must be provided as noted in this manual. (Refer to Water Supply

in Section C).

4. Plumbing should be performed in accordance to local, state and federal codes. (Refer to Feed Water and

Drain Plumbing in Section D).

5. Provisions must be made for adequate clearances for servicing and for operation as noted in this manual.

(Refer to Enclosure Requirements in Section II).

B. SYSTEM DESCRIPTION

Thank you for purchasing the model AD-840 water vending machine. It is made by American Dispensing
Company and is one (1) of the most advanced water vending machines on the market today. It is microprocessor­based and programmable. It interacts with the customer and owner through a light emitting diode (L.E.D.)
display and a membrane keyboard (touch pad). The AD-830 purifies water through a five-step process:

Incoming water first passes through a 10-micron absolute SEDIMENT FILTER. This means that suspended
solids larger than 0.01 mm (or about forty-thousands of 1-inch) such as slit and fine sand are removed.

Water then passes through a CARBON FILTER. This removes chlorine, odor, and a variety of organic
contaminants, such as chloroform and pesticide residue. The AD-830 uses a carbon filter with an extruded
carbon core and an inner filtration wrap. This combination ensures that, unlike a conventional granular activated
carbon (G.A.C.) filter, there is no channeling or bypassing, and no release of fine carbon particles.

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Water is then pumped through a thin film composite reverse osmosis (R.O.) membrane at about 160 PSI (11.03
bars). The R.O. membrane removes over ninety percent (90%) of a variety of salts and inorganic materials
found in water, such as dissolved salts of sodium, lead, nitrate; it removes typically over ninety-nine percent
(99%) of radioactivity, like radon. Actual rejection rate will depend on feed water chemistry, temperature, and its
total dissolved solid content.

Water is then stored in an atmospheric water tank, sealed except for an air vent, which is protected from dust and
airborne bacteria by a submicron air filter.

When your customer selects a vend, water will be pumped through a combination sediment/carbon POLISHING
FILTER which removes any remaining taste and sediment, and an ULTRAVIOLET (U.V.) STERILIZER which
sterilizes the water.

To keep the stored water fresh and sterilized, the water in the storage tank is recirculated through the polishing
filter and the U.V. sterilizer periodically.

Safety is our prime concern and it is designed into the machine. At the inlet and outlet of the R.O. membrane, a
comparator reads the total dissolved solid rejection rate, an indicator of the performance of the membrane. If the
rejection rate falls below a certain level, the microprocessor will shut the machine down. The same logic applies
to the U.V. sterilizer, where a true U.V. sensor continually monitors the disinfecting power of the light and shuts
down the machine when the U.V. level is not high enough.

There is also overflow and leakage protection. The sensors are located on the base of the machine, in the drain
tank of the dispensing bay and in the water storage tank. These sensors detect overflow or leakage and will shut
off whatever components are necessary.

NOTE: The machine is approved by the NATIONAL AUTOMATIC MERCHANDISING

ASSOCIA TION (NAMA) in Chicago. In many states, this is a requirement for water

vending machine installation.

C. WATER SUPPLY

The following conditions are required for optimum performance:

WARNING: FEED WATER MUST COME FROM INSPECTED, APPROVED WATER

SYSTEMS ONLY. SOURCE MUST BE MICROBIOLOGICALLY SAFE
DRINKING WATER.

1. Minimum Pressure/Inlet Flow Rate

4 gallons (15.14 liters) a minute at 35 PSI (2.41 bars) back pressure or the equivalent of 9 gallons (34.06
liters) per minute at a free flowing 1/2” N.P.T. outlet at the intended location of the machine. This test
should be conducted with ALL other equipment connected to the same water line running to reflect true
flow.

2. Maximum Water Pressure

The maximum water pressure is 80 PSI (5.51 bars). Install a pressure regulator if incoming water pressure
may exceed this level. High inlet pressure will irreparably damage filter housing and cause leaks in the
system.

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