11
B20352 ECN-12354
START UP AND CHECKING PROCEDURE
1. S-L-O-W-L-Y open one cylinder valve on the right bank (turn counter-clockwise to open). The right bank pressure
gauge should show the full pressure of the right bank of cylinders. The red “Depleted Bank” light on the right bank
will be extinguished.
2. S-L-O-W-L-Y open one cylinder valve on the left bank. The left bank pressure gauge will show the full pressure of
the left bank of cylinders. The yellow “Ready for Use” light comes on, extinguishing the red “Depleted Bank” light, on
the left side.
3. Create a slight flow of gas by opening the bleeder valve inside the manifold. Close the right cylinder valve to simu-
late a depleting right bank. (see Figure 15) Observe the following:
•
The right bank pressure slowly falls and the manifold control automatically switches over to the left bank.
•
Delivery pressure remains constant.
•
Green “In Service” light is extinguished.
•
Red “Replace Depleted Bank” light on the right bank illuminates.
•
Any remote alarms should be activated at this time.
•
The left bank green “In Service” light comes on, extinguishing the yellow “Ready for Use” light.
4. S-L-O-W-L-Y reopen the right cylinder valve. Observe the following:
•
Right bank pressure returns to full pressure.
•
Yellow “Ready for Use” light illuminates.
•
Red “Depleted Bank” light is extinguished.
•
Any remote alarms should be canceled.
5. Repeat procedures 3 & 4 simulating an empty left bank.
Figure 15
Bleeder Valve
