Franklin Fueling Systems TS-LLD Installation Manual - Manual (Page 65)

Line Leak Detection Page 4 - 1 4
4 TS-LLD Line Leak Detection
When a Line Leak is Detected
The TS-LLD line leak detection system: disables the Submerged Turbine Pump,
flashes the Line Leak Detected light, and displays a flashing test-fail Alarm code
when a line leak test fails.
CAUTION DO NOT excavate and repair a fuel-line solely on the basis of a
single alarm. Confirm the presence of a leak before attempting any repairs !
Leak tests occasionally fail when no leaks actually exist because of: product line
instability, thermal contractions within the line, or pump / vapor recovery system
malfunction. Air trapped within the line may also cause false leak alarms (this is
especially true after new installations / maintenance / service). See Chapter 2.4...
has product been dispensed after installation or service ? When was the last
maintenance / service done ?
Steps to take When a Line Leak is Detected:
1) Identify what type of leak was detected... Flashing test-failed Alarm codes:
3 = 3 gph leak = hourly test failed (gross / large leak)
2 = 0.2 gph leak = monthly-compliance test failed
1 = precision 0.1 gph leak = annual / manual test failed
2) Stop / Prevent dispensing (bag or tape poly over dispenser and dispense lever).
3) Inspect the piping system, dispenser, fittings, and hoses for obvious leaks. Open
the dispenser enclosure, and inspect the fittings and fuel filter for leaks (especially
if maintenance or service was done recently).
4) If no leaks are found during inspection, then start another leak test to verify
the previous failure (The Line Leak Detected light will keep flashing and will not
turn off until another test of equal or greater precision passes).
Start another test (same type that originally failed as identified in step one) ... See
Chapter 3 about the requirements of and how to start a 0.1 manual test – or –
to start automatic 3 gph and 0.2 gph line leak tests: push the Reset Test button
to clear a failed test and
simulate a dispense (see the next page about this).
NOTE
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Contents:
•
When a Line Leak is Detected
• Steps to take When a Line Leak is Detected
• How Often Should a Manual 0.1 gph Test be Run ?
• Need Help (with line test failures) ?