Gasboy Vapor Assist User Manual
Page 4
032170 Rev. 8279
Page 4
Steps 22 and 23
ECD
22. With grease, lubricate the threads on the opposite end of the hose and
install the breakaway. Lubricate and thread the second section of the
hose into the breakaway.
23. Thread OPW11VAI bellowless nozzle fitted with an efficiency
compliance device (ECD) onto the hose and tighten. NOTE: For
additional installation instructions, refer to specific procedures supplied
with the breakaway and nozzle.
Test System
24. Reset the emergency shutoff valve. Turn on the power to the pumping system.
25. Activate the dispenser and purge the air from the hose and pump by dispensing 1 to
1-1/2 gallons of gasoline into the authorized 5-gallon container. Upon completion,
return gasoline to the underground tank.
Check Performance
26. After the system has been completely installed, the performance of each dispensing hose point must be
measured by a trained technician with one of the following standards:
!
Latest revision of State of California Air Resources Board (CARB), procedure TP-201.5 – Determination
(by Volume Meter) of Air to Liquid Volume Ratio of Vapor Recovery Systems of Dispensing
Facilities. The measured A/L (Air/liquid) ratio should be between .9 and 1.1.
!
Latest revision of State of California Air Resources Board (CARB), procedure TP-201.5A – Determination
(by Orifice Meter) of Air to Liquid Volume Ratio of Vapor Recovery Systems of Dispensing
Facilities. The measured A/L (Air/liquid) ratio should be between .9 and 1.1.
If the A/L reading does not fall between .9 and 1.1 it is not necessarily and indication of pump malfunction.
If the A/L ratio exceeds the specified range, check the entire vapor system for possible leaks. If the A/L is
below the specified range, check the entire system for possible blockages. If A/L discrepancies persist,
individual system components should be evaluated for proper functionality.
Important: Vent stacks must be outfitted with CARB-approved pressure vacuum vents with a 3” water
column positive and 8” water column negative rating, such as the OPW523LP.
27. Replace decal on side panel For use only in UL Listed Interchangeable Service Station Type Hose
Nozzle Valve with the new decal (P/N 046631).