OM/SM-TDH-CE
14
d) If the pilot assembly is to be removed then
remove the flame sensing electrode wire (HT
lead) from the flame sensing electrode.
e) Remove the two retaining screws securing the
pilot assembly to the burner guard.
f)
Withdraw the pilot assembly from the burner
guard/combustion chamber.
g) Disconnect the spark electrode HT lead from the
ignition module and feed through control cabinet
wall.
h) Withdraw pilot assembly from the appliance.
i)
Replace in reverse order.
3.17 Spark Electrode/Flame Sensing
Bracket
(Turn gas and electric mains off)
a) Remove pilot assembly (Paragraph 3.16).
b) Undo retaining screws securing the flame
sensing electrode to the pilot assembly.
c)
The spark electrode is fitted to the pilot
assembly, therefore a new pilot assembly is
required.
d) Replace spark electrode and pilot assembly as
required.
e) Replace in reverse order. The spark gap should
be pre-set with no adjustment required.
Note
: After fitting, ensure there is an adequate spark
between the pilot shroud and the spark electrode.
Also ensure that the sensing electrode is positioned
in the pilot flame.
3.18 Remove Pressure Gauge
(Turn gas
and electric mains off)
a) Using the correctly-sized spanner, remove the
pressure gauge from the kettle jacket pipework.
b) Replace with new pressure gauge ensuring that
an adequate sealing compound is used.
c)
Once the pressure gauge has been replaced the
kettle jacket will need to be vented. (Paragraph
3.2).
3.19 Remove Sight Glass
(Turn gas and
electric mains off)
a) Undo the sight glass and allow the contents of
the kettle jacket to drain into a suitably sized
container.
b) Completely remove the sight glass.
c)
Replace in reverse order.
d) Ensure an adequate sealant is used to seal the
sight glass.
e) Once the jacket has been drained and the sight
glass replaced, the jacket will need filling
(Paragraph 3.3).
3.20 Multi-Function Gas Valve
(Turn gas
and electric mains off)
a) Remove the elbow from the gas control valve.
b) Remove the gas control valve from kettle jacket
pipework.
