ISD Alarm Message Diagnostics FLOW COLLECT
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FLOW COLLECT
A 1-Day Vapor Collection Flow Performance Test failure occurs when the vapor collection flow performance is less
than 50%.
ISD MONITORING CATEGORY
Vapor Collection Monitoring for sites equipped with balance vapor recovery systems is responsible for ensuring
that front-end vapor collection is operating within certified range with respect to the baseline collection
performance during fueling events. The baseline collection performance is established by CARB and is the V/L
standard for the system. Among other components, front-end equipment includes the nozzle, hose and the
breakaway. A balance vapor recovery system relies upon a tight bellows seal in order to allow displaced vapors to
return to the UST during fueling events.
DIAGNOSTIC PROCEDURE
• Perform the TP201.4 test.
• Find the hose that triggered the alarm by looking at the Collection Tests in the ISD Daily Report in the normal
menu.
• Refer to the Clear Test Repair Menu (on page 36) for clearing this alarm on the TLS after repairs are complete.
FIELD NOTES
This alarm should not occur at a Healy Assist site. If it does check EVR Type setup in ISD.
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