21
Manual Manifold
2006230.03
Header non-return valve
Copper seal P/N: 2005692
Tailpipe to
non-return valve
connection
Figure 17 - Header Non-return Valve Replacement
6.8.1 Complete steps in
section 6.1
before carrying
out any component replacement on the control panel.
6.8.2 Slowly turn the swivel nut of the tailpipe
connection. If you hear gas escaping do not fully
unscrew the joint until the system is fully drained,
see
figure 17
.
6.8.3 Fully disconnect the tailpipe joints as shown
in
figure 17
. Start to unscrew the non-return valve, if
you hear gas escaping do not fully unscrew the joint
until the system is fully drained. Fully disconnect the
non-return valve.
6.8.4 Inspect the existing seals and replace if
required,
see figure 17
for seal part numbers. Fit the
new non-return valve.
6.8.5 Reconnect the tailpipe to the non-return valve.
6.8.6 Follow steps in
section 6.11
to bring the
control panel back online.
Figure 18 - Line Pressure Gauge Replacement
Line Pressure Gauge
(Sealing washer P/N:
2005896)
6.9 Replace Line Pressure Gauge
(see table 10 for part numbers)
Table 10: Line Pressure Gauge Part Numbers
Nominal Line Pressure
Part Number
4 Bar
2005765
7 Bar
2005766
CAUTION: Ensure the new gauge has the
same scale as the one being replaced.
6.9.1 Complete steps in
section 6.1
before carrying
out any component replacement on the control panel.
6.9.2 Start to unscrew the line pressure gauge, if
you hear gas escaping do not fully remove until the
system is fully drained
(see figure 18)
.
6.9.3 Replace the old seals with those supplied
with the new gauge.
6.9.4 Fit the new gauge as per the old unit.
6.9.5 Follow steps in
section 6.11
to bring the
control panel back online.
6.10 Replace Cylinder Contents
contact Gauge (See table 11 for
part numbers)
Table 11: Cylinder Contents Gauge Part
Numbers
Switch point
Part Number
14 Bar (100 Bar Scale)
2005772
25 Bar (250 Bar Scale)
2005961
Note - A 14 bar switch point is typically used on
N2O and CO2. A 25 bar switch point is typically
used for O2, O2/N2O, Medical Air, Surgical Air and
N2O.
CAUTION: Ensure the new gauge has the
same scale and alarm contact as the one being
replaced.
6.10.1 Complete steps in
section 6.1
before
carrying out any component replacement on the
manifold control panel.
6.10.2 Disconnect the contact alarm wire, see
figure 20
.
