4.5 - GREEN MACHINE
™
- North America - Installation, Operation, Maintenance, & Troubleshooting Manual
Chapter 7: Maintenance Procedures
Page 100
7.3.3
Functionality Test Procedures
1.
Push the F2 button to access the Functionality Test Screen.
See Figure 7-5
.
2.
To start the Functionality Test, push the Start Button.
3.
Push the Confirm Functionality Test Button to confirm you would like to start the
Functionality Test.
See Figure 7-6
.
4.
The GREEN MACHINE will Run for 60-seconds then Purge for 60-seconds (this is one
cycle).
5.
The GREEN MACHINE will continue to cycle 5-times or until the F4 button is pushed to
end the test.
•
There are 5-cycles to provide enough time to conduct the test.
•
Pushing the F4 button will return the system to the Maintenance Screen and the
GREEN MACHINE will be in the OFF mode.
6.
When the test has ended, the VST Control Panel PLC will display GREEN MACHINE OFF.
7.
During the 60-second Run mode:
See Figure 7-7
.
•
Place your hand over the tee opening at the Vapor Inlet and feel for suction.
•
Next, place you hand over the tee opening at the Vapor Return and feel for zero
airflow.
•
Next, place your hand over the tee opening at the Air Outlet and feel for air blowing.
8.
During the Run cycle:
1)
Suction at the Vapor inlet:
NORMAL
2)
Air blowing out the Air Outlet:
NORMAL
3)
No air blowing/suction at the Vapor Return:
NORMAL
4)
All other blowing or suction conditions at each location, check the following items:
•
Make sure the Vacuum Pump is not in alarm. If so, see Chapter 8:
Troubleshooting, Section 8.6.
•
Check the Control Valves to make sure they are all operational.
See Chapter 8: Troubleshooting, Section 8.6.1, Step 5:
•
Make sure there is no debris in the valve seat.
Clean the valves as shown in Section 7.5: Cleaning the Control Valves.
•
Make sure the flare nuts are tight. Check each 45° flare nut to make sure
they are snug but not over tightened.
9.
During the 60-second Purge cycle:
See Figure 7-7
.
•
After the Purge cycle has begun, place your hand over the tee opening at the Vapor
Return and feel for air blowing. The blowing air will reduce to zero flow soon after
the Purge cycle begins.
•
Next, place your hand over the tee opening at the Vapor Inlet and feel for zero
airflow.
•
Next, place your hand over the tee opening at the Air Outlet and feel for zero
airflow.
