G:\Masters\Installation Sheets\Master & Premier\MMR400S Aviation Installation Sheet.doc
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9.
Dispensing Hoses and Nozzles
The unit may or may not be supplied with dispensing hose and nozzle assemblies.
If customer supplied hose assemblies, pylons, reels, safe breaks and nozzles are used they must
comply with the requirements outlined in AS/NZS 222.
9.1
Breakaways
Any breakaway couplings that have been subject to a break-away situation should be inspected
and refitted or replaced in accordance with the original manufacturer’s instructions.
10.
Electrical Commissioning C4000
Before beginning this test, check that fuel has
not
been applied to the dispenser. The factory
set-up information should have been programmed into the dispenser but all K-factor and
Parameter switch settings should be checked and confirmed before commissioning tests are
carried out.
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).
1.
Turn on the power supply to the dispenser.
2.
With the dispenser in a
ready state
, check that the C4000 Microprocessor Power LED (D1) is
turned on.
If the dispenser is receiving information, Comms RXD LED (D6) will poll. If the
dispenser responds to polls for its respective pump number/s, Comms TXD LED (D7) will also
poll.
Diagnostic LED (D18) slowly flashing. (If the dispenser is connected to an operational
Controller, it flashes slowly but erratically. If the dispenser is not connected to a
Controller, it flashes slowly and consistently.)
Watchdog LED (D5) is turned off
3.
Turn side A switch to ON.
The display will show
888888
and the solenoids will energise, starting the pump motor.
Check that Diodes D8, D10 and D11 turn on, indicating a signal is being sent to the triacs to
open the solenoid valves.
The diagnostic LED (D18) flashes quickly when the start button is pushed or the nozzle
removed from the holster to initiate a fill. When the button is released or nozzle returned to
the holster it will return to the normal state and flash slowly.
4.
Verify solenoid operation by listening for a click, or by using a screwdriver tip or some other
metallic tool to check for a magnetic field present on the solenoid coils.
5.
The solenoids will switch off after four minutes. This is a default time-out setting in the
software for situations when there is no fuel flow registered. If there is air in the system, the
display may show an error code.
6.
Turn switch to OFF
7.
Repeat the operation for both hoses.
8.
To clear the error code, re-power the dispenser and then move on to the Mechanical
Commissioning and Air Purge of the dispenser.
