39
Part No. 6-847703-00 Rev. C00
Testing and Adjustments
9. Verify front panel line pressure gauge reading
is as indicated in Table 1 (line regulator). If
pressure is not correct, refer to Line Regulator
Adjustment procedure. Note reading for later
use.
10. Close vent valve. Watch pressure gauge
readings of left side bank regulator and front
panel line pressure gauge for at least five
minutes. Readings may be slightly higher
without vent flow. Verify readings do not
continue to increase.
11. Close all liquid containers on left side of
manifold. Open vent valve slightly so that
front panel left bank contents gauge drops
slowly. Verify manifold switches to right bank
when left bank pressure gauge drops to value
indicated in Table 1 (Left Secondary Supply
Switch). If pressure value is not correct, left
secondary supply pressure switch needs
adjustment. Refer to Secondary Supply
Switch Adjustment procedure.
12. Close vent valve. Verify the following:
• Only right bank green "IN USE" and left
bank red "EMPTY" lights are illuminated.
• If manifold is connected to a master alarm
panel, verify only manifold “SECONDARY
SUPPLY” alarm is activated.
13. Close two right-side line regulator isolation
valves and open two left-side line regulator
isolation valves.
14. Open vent valve to create a small flow of gas
through manifold. Vent valve must be opened
wide enough so that right side bank regulator
gauge (attached to right dome regulator body)
just begins to slightly drop.
15. Verify pressure gauge reading on right bank
regulator is as indicated in Table 1
(intermediate pressure - in use bank). If
pressure is not correct, refer to Bank
Regulator Adjustment procedure.
16. Verify front panel line pressure gauge reading
is the same as in step 9. If pressure is not
correct, refer to Line Regulator Pressure
Adjustment procedure.
17. Close vent valve. Watch pressure gauge
readings of right side bank regulator and front
panel line pressure gauge for at least five
minutes. Readings may be slightly higher
without vent flow. Verify readings do not
continue to increase.
18. Close all high-pressure cylinders connected to
right side of manifold. Open vent valve slightly
so that front panel right bank contents gauge
drops slowly. Verify right bank green “IN USE”
light turns off and right bank red “EMPTY” light
illuminates when right bank pressure gauge
drops to value indicated in Table 1 (Right
Secondary Supply Switch). If pressure value
is not correct, right pressure switch needs
adjustment. Refer to Secondary Supply
Switch Adjustment procedure.
19. Close vent valve.
20. Open vent valve slightly so that front panel
right bank pressure gauge continues to slowly
drop. When right bank pressure is nearly
depleted, right bank regulator intermediate
pressure gauge will also begin to drop. Verify
that power supply red “RESERVE IN USE”
indicator illuminates when right bank
intermediate pressure gauge drops to value in
Table 1 (Reserve In Use Switch). If pressure
is not correct, refer to Reserve In Use Switch
Adjustment procedure.
21. Close vent valve. If manifold is connected to a
master alarm panel, verify “SECONDARY
SUPPLY” and “RESERVE IN USE” alarms are
activated.
NOTE:
Line regulator settings listed in Table 1 are
nominal factory settings. Actual customer
settings may vary.
