At the mechanical commissioning stage, the dispenser should not be pressurised.
NOTE: If you find any leaks during commissioning, immediately close all the valves and
de-gas the dispenser.
To perform a mechanical test:
- Make sure that the inlet shut-off valves are closed. (These are the valves in the
inlet lines at the base of the dispenser, but they are not part of the dispenser.)
- Check all dispenser fittings, especially the inlet connections, to make sure that
they are tight.
DANGER: Always de-gas the lines before tightening any fittings. Never tighten fittings
while they are under pressure.
- Check that the outlet supply valve to hose 1 on the side of the dispenser (or
hose 2 if you are working on side 2) is closed and the nozzle valve is closed.
- Turn on the dispenser and wait for it to power up.
The dispenser initially displays holD. When it is ready, 0.00 is displayed.
- Press the star button.
NOTE: If you are commissioning a dual hose dispenser, press the Start button on either
side. This opens the dispenser's solenoids. The dispenser automatically shuts off after
approximately 10 seconds if no flow is detected.
- Slowly open the inlet shut-off valves and listen for leaks. If you hear leakage,
shut off the inlets immediately. If the dispenser shuts off during this process,
shut off the inlet valves, restart the dispenser, and continue.
- Once the inlet valves are fully open, allow the dispenser to time out on the 10
second no-flow timer and shut the solenoid valves, or manually shut it down
and close the solenoid valves by pressing the stop button.
- Press the start button on the dispenser.
NOTE: If you are commissioning a dual hose dispenser, only press the Start button for
one of the hoses.
- Slowly open the outlet isolation valve on the side of the dispenser and listen for
leaks. If you hear leakage, shut the valve immediately.
If the dispenser shuts off during this process then shut the outlet supply valve, restart
the dispenser, and continue.
- Repeat steps 8 and 9 for the second hose on a dual hose dispenser.
- Once the outlet isolation valves are fully open, allow the dispenser to time out on
the 10 second no-flow timer and shut the solenoid valves, or manually shut it
down and close the solenoid valves by pressing the stop button.
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