4.5 - GREEN MACHINE
™
- North America - Installation, Operation, Maintenance, & Troubleshooting Manual
Chapter 11: Operator Training Guide
Page 209
11.4
Station UST Environmental Compliance Testing and Services
•
When a UST Environmental Compliance Testing and Service company conducts their testing, it is
usually for compliance or company regulations. The testing usually has to do with underground
storage tanks, piping, dispensers, or a combination of the three. There are several tests that may
be conducted (if applicable).
•
Any time a test is being conducted, the GREEN MACHINE MUST BE TURNED OFF to ensure the
GREEN MACHINE does not operate.
•
Before Testing Begins:
1. At the front of the VST Control Panel, remove the carabiner clip and turn OFF the Power
Switch
. Reinstall the carabiner clip after power is turned OFF by pushing in the “handle
slide” then installing the clip. This will turn OFF all power to the VST
Control Panel and to
the GREEN MACHINE. The PLC will not show any screens and will be blank
2. There is no need to close the isolation valves at the GREEN MACHINE since powering off
the VST Control Panel will close the control valves inside the GREEN MACHINE. This will
isolate the GREEN MACHINE from the UST, the vent risers, and all external vapor piping.
•
After Testing is Complete:
1. Remove the carabiner clip and turn the Power Switch to ON. Next install the carabiner
clip by pushing the “handle slide” in, then installing the clip.
2. The PLC will boot up in the Main Screen and will be in a Normal Operating Mode.
11.5
Locks and Keys
•
VST has provided keys with the GREEN MACHINE, specifically for the following:
•
3-Locks - Locking Ball Valves on the Vapor Inlet, Vapor Return and on the Air Outlet
•
2-Locks
–
For the Cover
•
1-Lock
–
For the Power Switch at the GREEN MACHINE.
•
All the locks are keyed the same.
1. When the GREEN MACHINE is operational, the ball valves must remain locked in the open
position to prevent damaging the GREEN MACHINE.
