COMPLIANCE INFO_2021 - Laserfiche WebLink

Home Browse Search

Setup Alarm Setup Alarm Setup INTRODUCTION California regulations (VAPOR RECOVERY CERTIFICATION PROCEDURE, CP-201, CERTIFICATION PROCEDURE FOR VAPOR RECOVERY SYSTEMS AT GASOLINE DISPENSING FACILITIES, Section 10.1.2) require shut down of dispensing systems that generate specific alarm conditions. To accomplish this,the TLS must be configured to control the gasoline tank's pump (diesel tanks are not monitored)or the gasoline dispensers in order to disable them when ISD shutdown alarm conditions occur. Prior to setting up ISD shut down alarms, you will need to determine how the site's tank pumpsor dispensers are controlled. If the site has line leak detection,you can shut down the line (tank) by assigning the ISD alarms in Line Leak Disable setup. In the absence of line leak detection,you can assign the ISD alarms to Output Relays which in turn can be wired to shut down the tank or assign ISD alarms to Dispenser Relays which can be used to shut down the dispenser. Figure 9 illustrates two examples of tank pump control, one using a line leak/output relay combination and one using output relays. EXAMPLE 1 - Line Leak Detector controls T1 and T3, Output Relay controls T2 STP STP OUTPUT STP PLLD 1 RELAY 1 PLLD 2 TANK 1 TANK 2 TANK 3 EXAMPLE 2 - Output Relay 1 controls T1,Output Relay 2 controls T2,etc. STP STP STP OUTPUT OUTPUT OUTPUT RELAY 1 RELAY 2 RELAY 3 isd-evr/isdsetdial.eps TANK 1 TANK 2 TANK 3 Figure 9. Site Tank Control Examples Referencing the figure above, in example 1,you would assign the ISD shut down alarms for tank 1 to PLLD 1 in PLLD Line Leak Disable setup,for tank 2 to a relay in Output Relay Setup, and for tank 3 to PLLD 2 in PLLD Line Leak Disable setup. In example 2,you would assign the ISD shut down alarms for tank 1 to output relay 1,tank 2 to output relay 2, and tank 3 to output relay 3. 10-16 CARO Approved IOM 10 -Veeder Root ISO Install,Setup,9 Operation Manual-Executive Order VR-202