Thermo Scientific EASY-nLC 1200 Troubleshooting And Maintenance Manual page 299

Figure 3.
Downstream of Valve S
Solvent Lines
The following solvent line connections are in the flow path downstream of valve S:
❖ To return the solvent lines that are downstream of valve S to atmospheric pressure
Figure 4
Solvent lines that are downstream of valves A and B and upstream of valve S, numbered 1–6
Center position
Center position
• Column Out tubing connected to port 3 of valve S and the Viper union (P/N SC900)
• Waste In tubing connected to port 2 of valve W and the Viper union or the venting Tee
1. On the touch screen, press Home > Overview.
2. Using the valve controls, set the valves to the following positions:
Valve Position
S Center
W 1–6
shows the Column Out and Waste In solvent lines that are downstream of valve S.
No flow
Mixing Tee
No flow
Effect
Maintains the system pressure upstream of valve S.
Vents the system pressure downstream of valve S.
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Waste