Table of Contents
Advertisement
Medical Gas Supply System
3.
Commissioning.
3.1
General.
Commissioning of the Manifold Changeover System must
be carried out in full after initial installation. The object
of the commissioning procedure is to ensure that all
components are serviceable and that the overall system
is operable and set to the correct distribution pipeline
pressure. Suitably qualified competent personnel who
are familiar with this manual must only undertake
commissioning of the Manifold Changeover System.
3.2
Preparation.
3.2.1
Ensure that all tailpipes are connected to the
cylinders and manifold headers on both sides, and that
the restraint chains are secure around the cylinders.
3.2.2
Ensure that the outlet pipe from the Manifold
Changeover System is connected to the distribution
system of the same gas service.
3.2.3
Ensure that the manifold lockable isolation valve
(shown in figure 1, item 13) is fitted and in the closed
position.
3.2.4
Open 1 cylinder valve on each bank of the
manifold to pressurize the system.
3.2.5
Check connections on the headers, tailpipes,
regulator, and associated pipework for leaks.
3.2.6
Turn power on to the controls, ensure screen
and power on LED's are enlightened.
3.3
Pressure Checks.
3.3.1
Ensure that full gas cylinder pressure is shown
on the controller screen and backup cylinder gauge
(figure 1, item 23), the cylinder graphics are shown as full
and the appropriate LED and icons are lit up (see figure
16). See figure 9 to 12 in section 2.5 if setup changes are
required.
3.3.2
Check that the pipeline distribution pressure
displayed on the screen and back up gauge (figure 1,
item 18) is typically as per table 6 in section 4, Principles
of Operation. Adjust as necessary. See procedure for
line pressure adjustment in Section 4.5.
4109992485.00
3.4
Function Checks.
3.4.1
With the left bank as duty, press [Left Arrow]
to select if necessary. Ensure all left hand cylinders are
closed, then slowly drain the pressure from the test point
(shown in figure 1, item 17) until the cylinder contents
pressure is below the bank changeover point (typically
10 bar for 4 bar supply, 20 bar for 8 and 11 bar supply).
Stop draining the pressure once the running bank has
changed to the right-hand side.
Figure 16 - Start-up, Normal Operation.
NOTE - The below details are shown with left bank set as
duty, if right back is duty any of the bank related graphics
and LED's will be mirrored.
5
7
Screen and LED Conditions
No.
Description
1
Line pressure value
2
Cylinder pressure
valve
3
Manifold status
graphic
4
Power LED
5
Left Bank Running
icon
18
2
1
9
icon
Condition
N/A
Typically as shown
Typically as shown
N/A
Shown As Normal
Standby Running
Standby Low
Reserve Low
Low Line Pressure
High Line Pressure
On
Off
On
Off
3
4
6
8
Advertisement
Table of Contents
