Wayne GLOBAL VISTA CNG Instruction Manual
EN
WT004139
2008-03-20 V0 Rev.01.0
Global Vista CNG
Instruction Manual
© Copyright
2008-03-20 V0 Rev.01.0
- 2 - WT004139
Product Liability
The supplier’s product
liability is only valid if no
alterations, additions etc.
have been made to the
equipment without the supplier’s express permission.
Use only genuine parts.
Produktansvar
För att en leverantörs
produktansvar skall gälla får
ändringar, kompletteringar
och liknande ej göras i utrustningen utan leverantörens godkännande.
Originalreservdelar skall
alltid användas
.
Produkthaftung
Damit die Produkthaftung
des Lieferanten ihre
Gültigkeit behält, dürfen
ohne ausdrückliche
Genehmigung des
Lieferanten keine
Änderungen, Ergänzungen
o. Ä. an der Ausrüstung
vorgenommen werden.
Verwenden Sie nur
Originalteile.
Oтветственнoсть
пoставщика
Для сохранения
ответственности нельзя
вводить в оборудование
изменения, дополнения и
т.п. без разрешения
поставщика. Пользуйтесь
только оригинальными
запасными частями,
выпущенным
изготовителем
бензоколонки.
Caution
To prevent damage that
might result in electric shock
or fire, disconnect the main
power prior to any work.
Varning
Gör pumpen/enheten strömlös innan Du gör ingrepp i
den. I annat fall föreligger
risk för skada.
Vorsicht
Um Beschädigungen zu
vermeiden, die zu einem
elektrischen Schlag oder
Feuer führen können,
unterbrechen Sie vor jeder
Arbeit die Stromzufuhr.
Осторожно
Во избежание поражения
электрическим током или
пожара отключайте напряжение питания перед
началом любых работ.
Warning
Never run a leaking pump!
Be careful with the environment and mind the skidding
risk; take care of leaking fuel
immediately.
Varning
Använd aldrig en läckande
pump.
Tänk på miljön och halkrisken, sanera utläckt drivmedel snarast.
Warnung
Lassen Sie nie eine undichte
Zapfsäule laufen! Seien Sie
umweltbewusst und denken
Sie an die Rutschgefahr;
beseitigen Sie austretenden
Kraftstoff umgehend.
Предупреждение
Не пользуйтесь колонкой
при наличии утечки
топлива! Охраняйте
окружающую среду,
помните об опасности
скольжения: в случае
утечки топлива на
дорожное покрытие возле
колонки, примите меры
немедленно.
The contents of this
publication may not be
copied either wholly or
in part without the
consent of Dresser
Wayne AB.
Dresser Wayne AB
reserves the right to
change specifications
contained in the text and
illustrations without
notice.
Innehållet i denna publikation får ej helt eller
delvis kopieras utan
medgivande från
Dresser Wayne AB.
Dresser Wayne AB förbehåller sig rätten att
utan särskilt meddelande
ändra specifikationer
givna i text och bild.
Der Inhalt dieses
Handbuches darf ohne
die Erlaubnis von
Dresser Wayne weder
ganz noch teilweise
kopiert werden.
Dresser Wayne behält
sich das Recht vor,
textliche oder bildliche
Inhalte ohne besondere
Mitteilung zu ändern.
Не разрешается
копировать полностью
или частично содержание
настоящей публикации
без разрешения фирмы
Dresser Wayne АВ.
Dresser Wayne АВ
оставляет за собой право
вносить изменения в
спецификации,
содержащиеся в тексте и
иллюстрациях, без
предварительного
уведомления.
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Index
General Warnings............................................................................................4
Warnings for fuel station operators...............................................................4
Consulting the manual....................................................................................................................................5
Warnings and safety.......................................................................................................................................5
Protection from pressure-related risks............................................................................................................ 5
Preventing CNG leaks....................................................................................................................................5
Breakaway devices.........................................................................................................................................5
Electrical installation / Preventing electrical shocks ......................................................................................6
Dispenser Identification .................................................................................................................................6
Main technical characteristics ........................................................................................................................ 6
Main technical characteristics ........................................................................................................................ 7
Operating principles....................................................................................................................................... 7
Electrical system ............................................................................................................................................ 7
Typical operating diagram ............................................................................................................................. 8
START-UP........................................................................................................8
Transportation, unpacking and handling internal components.......................................................................8
Installation......................................................................................................................................................9
Initial start-up............................................................................................................................................... 16
Dispensing procedure...................................................................................................................................16
COMPONENTS.............................................................................................17
Hydraulic components.................................................................................................................................. 17
Electrical components..................................................................................................................................17
HYDRAULIC COMPONENTS...................................................................18
Manual ball valve.........................................................................................................................................18
Particulate filter............................................................................................................................................18
Check valve..................................................................................................................................................18
Mass-flow meter...........................................................................................................................................18
Motorized valve ...........................................................................................................................................18
Pressure gauge..............................................................................................................................................18
Delivery hose ...............................................................................................................................................18
Delivery Nozzle ...........................................................................................................................................18
Three-way valve...........................................................................................................................................19
Breakaway Device........................................................................................................................................ 19
ELECTRICAL COMPONENTS.................................................................19
Electronic head.............................................................................................................................................19
Electrical components used in hazardous areas............................................................................................20
MAINTENANCE...........................................................................................20
Relieving pressure from the dispenser..........................................................................................................21
Cleaning.......................................................................................................................................................21
Disassembling / Scrapping the dispenser ..................................................................................................... 21
OPERATIONAL PROCEDURES ON THE ELECTRONIC HEAD......22
Changing prices............................................................................................................................................22
Operational modes of the dispenser .............................................................................................................23
Further information......................................................................................................................................23
ID PLATE.......................................................................................................24
DECLARATION OF CONFORMITY........................................................25
NOTES............................................................................................................26
MARKET & SERVICE ................................................................................27
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The descriptions and illustrations in this manual are not binding.
DRESSER reserves the right to make any modifications it considers necessary to make technical improvements
or for any other structural or commercial reason, at any time and without having to update the present
publication. Modifications will not compromise the essential characteristics of the equipment.
General Warnings
• Before using this equipment, read carefully the instructions in this manual in order to effectuate a
correct carry out transportation, start-up and ordinary maintenance.
• Dresser is not responsible for any operations not listed in this manual. In case of breakdown, failure or
malfunction, refer exclusively to the Maintenance Company or Dresser itself.
• Dresser declines responsibility for any damage to things and/or persons due to non-compliance with
safety rules.
• The safety rules in this manual are an integration and not a replacement of the laws in effect in those
countries where this equipment is installed. It is assumed that the station operators have full
knowledge of the safety rules of the country where they operate.
• In case of doubts regarding the proper functioning of the equipment, please refer to the maintenance
company or to Dresser itself to obtain any necessary instructions.
• In case of breakdowns and/or malfunctions of the pump or of its components, refrain from performing
any intervention that may compromise the safety of the equipment. Refer exclusively to the
maintenance company of Dresser itself.
• Periodically check the safety devices in compliance with the instructions of this manual and ensure
they are in perfect condition.
• Dresser will not be held responsible for any tampering performed by the customer, who in this case will
be the only party held liable by the competent authorities.
• For further information on the main components of the equipment (mass flow meter, actuator, board,
etc) and/or original spare parts, see the specific technical documentation given to your technical
assistance/after-sales company.
Warnings for fuel station operators
• The station manager and attendant must carefully read this manual before starting the equipment. We
also recommend keeping this manual throughout the operational life cycle of the equipment, without
adding or modifying anything.
• The customer will be held responsible for any damages due to corrosion, incrustation, pollution,
oxidation, dust, wear-and-tear and gradual deterioration of the product for which conformability limits
have not been set. The customer will also be responsible for any damages related to improper use or
maintenance of the product. Furthermore the customer will also be responsible for any damages
caused by any modifications to the product without prior consent by Dresser, in particular modifications
that are not compliant to what was established in the initial purchase order.
• The use of non-original spare parts by the customer will discharge Dresser from any responsibilities
and from any compensation.
• The GLOBAL VISTA CNG dispenser has the marking guaranteeing that the equipment has been
manufactured in conformity with the applicable EU directives. The dispenser leaves the factory
equipped with the CE declaration of conformity (see the last page of this manual). The CE declaration,
just like this manual, must be kept and shown upon request by the competent authorities, in case of
inspections and/or tests. Any modifications to the product that have not been previously approved by
Dresser will invalidate the declaration of conformity.
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Consulting the manual
The GLOBAL VISTA CNG compressed natural gas dispenser is used in areas that are potentially dangerous
and with flammable products.
We recommend scrupulously to follow the precautions and warnings described hereafter. Non-compliance
with the rules listed in this manual could potentially bring serious damages to things or persons.
Warnings and safety
Always follow safety precautions in the CNG area of the fuelling station.
Display the following the signs in clearly visible areas:
NO SMOKING
NO OPEN FLAMES
FLAMMABLE PRODUCTS
TRIPPING HAZARD
PERIODICALLY INSPECT THE PROPER FUNCTIONING OF THE EXTINGUISHERS
RISK OF EXPLOSION
ALWAYS USE PROPER PERSONAL PROTECTION
DISCONNECT ALL ELECTRICAL CONNECTIONS BEFORE WORKING ON THE
DISPENSER
VERIFY PROPER FUNCTIONING OF GROUNDING SYSTEM
The positions of these warnings depend on local conditions but they must be visible from the dispenser.
Ensure that all station attendants know how to behave in an emergency situation
Protection from pressure-related risks
The hydraulic circuit of the dispenser works under pressure.
Before performing any maintenance, accurately close the cut-off valve/s located at the base of the dispenser
and release the internal circuit pressure. Pay particular attention in releasing pressure, as, if not performed
properly, some sections of the hydraulic circuit can remain under pressure due to the presence of check
valves and/or motorized valves. To release the dispenser pressure follow the instructions mentioned later on
in the manual.
Preventing CNG leaks
Take all the necessary measures to prevent any gas leaks.
Breakaway devices
In some countries the use of breakaway devices are obligatory by law. We recommend it nonetheless even in
countries where it is not compulsory, in order to guarantee interruption of gas flow in case of an accidental
pull on the hose.
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Electrical installation / Preventing electrical shocks
-
Ensure a correct power supply
Never open the CPU when the dispenser is powered.
Never disconnect cables when the dispenser is powered.
Before opening the dispenser for maintenance, always disconnect all power connections.
-
During maintenance, prohibit or restrict access to the switches used to interrupt power supply to
the dispenser.
-
Ensure that the fuelling station has both an electrical line equipped with an automatic breakaway
device as well as a proper grounding system in compliance with all applicable regulations.
Dispenser Identification
The GLOBAL VISTA CNG dispenser can be manufactured in different versions due mainly to the different
hydraulic configurations.
The following drawing illustrates the general shape and dimensions of the standard model:
B SIDE
A SIDE
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Main technical characteristics
The main technical characteristics of the GLOBAL VISTA CNG dispensers are listed in the following table:
Maximum flow 77 kg/min
Minimum flow 0,06 kg/min
Minimum measurable quantity 5 kg
Measuring accuracy ± 1%
Maximum working pressure 250 bar
Power supply 230 Vac +15 -25% 50-60 Hz
Storage and working temperatures -20°C ÷ +40°C
Approximate weight (with packaging) Min. 200 kg - Max. 300 kg
The function of the CNG dispenser is to fill compressed natural gas into vehicle tanks. Dresser CNG
dispensers can pump both at high flow and standard flow and can therefore fuel all vehicles using CNG, such
as automobiles, vans, buses and trucks.
Operating principles
The compressed natural gas moves from the storage tank or directly from the compression unit, to the CNG
dispenser, and then reaches the vehicle’s tank, passing through the mass-flow meter in the dispenser.
The information given by the mass-flow meter or any other sensors (temperature sensor, pressure sensor,
etc.) are processed by the electronic head, which carries out specific operations based on the values it
receives.
The CNG dispensers can be:
• Single-stage dispensers that control a single valve (first stage level); their hydraulic system
communicates with one storage tank only;
• Multi-level dispensers (cascade system) which control two or three valves (first, second, third
level valves); their hydraulic system communicates with two or three storage tanks with different
pressures.
Electrical system
The electrical system, which allows all of the dispenser’s functions (control, command, lighting, etc.), is in
compliance with the safety regulations and legislations that are relative to the installations in potentially
explosive atmospheres.
Cables and safety switches must be chosen and sized according to applicable EN/CEI norms.
Important!
In order to respect current safety regulations, wiring must be performed exclusively by technicians
who install CNG dispensers
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VENT
GAS INLET
MIDDLE
PRESSURE
LOW
HIGH
Typical operating diagram
The following diagram illustrates the operating principles of a CNG dispenser with three levels of pressure.
10 Vehicle connection
9 Breakaway device
8 Pressure transmitter
7 Pressure gauge
6 Valve
5 Meter
4 Vent valve
3 Check valve
2 Filter
1 valve (optional)
Pos. Denomination
START-UP
Transportation, unpacking and handling internal components
During transportation the dispenser must be handled with care. Please follow the
instructions on the packaging at all times.
When lifting with forklift trucks lift on the areas indicated with the arrows in this
diagram (areas are about 50 cm one from the other).
Always use the proper methods to lift and transport the dispenser. Non-compliance
with the instructions for moving the dispenser could cause serious damages to
things and people.
Once you have received the dispenser, carefully inspect the equipment to ensure
that it has not been damaged during transportation. Any damaged equipment must
be sent back to the shipper.
While unpacking, make sure not to damage the painted surfaces.
Do not remove the film that protects the dispenser’s lining before it is completely
installed. However, it must be removed immediately after installation to ensure an
easy removal that will not damage painted surfaces. Use proper products (avoid
harmful solvents) to eliminate any glue residues.
Computing
head
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To access internal components for installation and ordinary maintenance, use
the proper key supplied with the dispenser to open lower front panels and/or the
head box.
Installation
Before installing the dispenser, it is necessary to ensure that installation is carried out exclusively by qualified
technicians that are fully knowledgeable about both installation procedures as well as about prevailing
applicable regulations.
All equipment must be installed in compliance with the requirements of the applicable regulations.
In many countries there are norms on safety distance that must be carefully followed. It is necessary to
ensure that these norms are respected, starting from the planning project of the system.
In Italy, the connection of the dispenser to the gas adduction line must take place through an excess flow
valve.
Dresser cannot be held responsible for any damages to persons and/or things deriving
from an improper installation of the dispenser.
When installing, it is necessary to pay particular attention to the following aspects.
Electrical system and safety
Install an emergency stopping system (normally composed of an emergency button and one or more safety
switches) that is capable of interrupt the flow to the equipment in case of operating problems. The emergency
stopping system, not included with the dispenser, must comply with national regulations (for example EN
60204-1). The safety device must be placed in the gas station in order that it is easily accessible to
attendants. Following an emergency stop, the emergency button must be reset before returning back power
to the station.
Returning power must not cause an automatically start of the fuelling.
Ensure that all station attendants fully know where the emergency system is located and how it works.
To install the CNG dispenser, perform the following operations:
• open front panels;
• place and fasten the dispenser on the base;
• make hydraulic connections and check the fastening on the dispenser’s connections;
• connect electrical wiring, checking electrical values;
• power the dispenser;
• open the gas inlet valve;
• open the air/instrument valve (6 / 8 bar);
• close front panels;
In order to properly make hydraulic and electrical connections, always refer to the diagrams supplied by
Dresser.
During transportation the dispenser’s hydraulic connections may loosen. Check whether all
the dispenser’s connections are tight. Always verify that the dispenser or, more generally, the
whole system has no gas leaks.
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