Healy VP1000-5, Руководство по устранению неисправностей, Страница: 8 / 19

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Section Three: Under-Current Fault Troubleshooting
This section of the guide is to assist installers, operators, and other personnel on properly troubleshooting VP1000-5
under-current fault conditions. The root causes typically include vapor leaks, a breach in the product and vapor paths of
the hanging hardware, and issues with the rotor / vanes. When the VP1000-5 is operating at a low speed, a high vacuum
level typically indicates an issue with the cover assembly, while a low vacuum level typically indicates a vapor leak or
stuck / missing vanes.
Perform a dispenser vacuum integrity test per
steps B-3 and B-4 of the A/B sheet. (Refer to
Appendix B).
Does the
integrity test
pass?
Confirm that meter creep is not present. Check for leaks in the vapor
piping (Loose fittings, Pipe tape missing from threaded connections)
and hanging hardware (O-ring / Quad-ring damage). Perform a bag test
at each nozzle on the affected dispenser. Refer to Exhibit 7 of
Executive Order VR-201.
No
Verify the performance of the VP1000-5 per B-5 of
the A/B sheet (Refer to Appendix B).
Yes
Is the
vacuum level produced
by the VP1000-5 between
60-90” WC?
Disconnect the white reset plug on the MC100-1. Remove the VP1000-
5 front cover to evaluate the rotor/vanes for wear and/or damage. Refer
to Appendix C. Confirm that no vanes are missing or stuck in the rotor.
Check for debris and/or damage to the cover assembly.
No
Yes
Retest
Retest
Review Maintenance Log and ISD
Warning/Failure alarms for recent activity.
Install a 0-100" WC vacuum gauge at the test tee.
Is the
VP1000-5 running at
low or high speed when neither
side of the dispenser is authorized
and the ambient temperature
is above 40ºF?
Check for a leaking input voltage. Refer to Appendices E and F. Yes
No
Contact FFS Technical Support
for further assistance
To ensure accurate testing results, service personnel
must control both sides of the dispenser by using cones
and/or a service vehicle to block the entire dispenser.
Remove the vacuum gauge from the test tee, re-insert the plug in the
tee, and confirm the ball valve prior to the VP1000-5 inlet is open.
Were repairs
made?
No
Yes