Wayne GLOBAL VISTA CNG, Instruction Manual

Page: 16 / 28

© Copyright
2008-03-20 V0 Rev.01.0
- 16 - WT004139
Initial start-up
Initial start-up is needed to verify whether the dispenser is in perfect operating condition.
Before starting the dispenser, ensure that all installation procedures have been properly carried out (hydraulic
connections, sealing of the fittings, electrical connections, etc.).
Make sure that the junction boxes are properly closed and that all cable glands are accurately fastened.
The junction boxes must not present any signs of openings; any holes not intended for the cables must be
closed with original plugs.
The first start-up of the CNG dispenser must be performed by properly trained personnel. To install the CNG
dispenser, follow the procedure below:
•
Switch dispensing selector to the OFF position;
•
Power the dispenser complying with the values listed on the corresponding electrical schemes;
•
Switch dispensing selector to the ON position;
•
Place the hydraulic circuit under pressure and ensure there are no leaks on the hydraulic
connections;
•
Switch the dispensing selector to the OFF position;
•
Clean the dispenser (minimum delivery of 10 m
3
of gas) by dispensing some gas following the
procedure indicated in the following paragraph;
•
Check the meter’s calibration by dispensing gas a few times and comparing the measurements
given by the electronic head with those given by a proper sampling instrument (For Example:
precision scale);
Dispensing procedure
To dispense CNG, follow these procedures:
•
remove the nozzle from its housing;
•
connect the nozzle to the vehicle’s tank or to a test tank (suitable for storing natural gas at the
maximum fuelling pressure);
•
bring the three-way valve to the «ON» position (dispensing);
•
start dispensing by activating the dispensing selector switch (bring it to the «ON» position);
•
the dispenser manages the end of delivery and the stop appears when a pre establish value of
pressure or low flow is reached;
•
after stop switch the dispensing selector to the «OFF» position;
•
bring the three-way valve to the «VENT» position (no dispensing);
•
remove the nozzle from the vehicle’s tank or from the test tank;
•
re-insert the nozzle in its housing;
Note 1: the three-way valve can be integrated onto the nozzle or separated.
Note 2: a light signal always indicates the operating status of the dispenser (green= dispenser
ready; red= dispenser fuelling or in error)
Note 3: Pay attention to activate the selector switch only after the three way valve is ON position.