Initial Lighting Of The Pilot - Sit; Initial Lighting Of Pilot - Honeywell - Glow-worm swift flow 100 Installation Instructions Manual

11.4 Initial Lighting of the Pilot - SIT

Identify the boiler controls, see diagram 11.1.
Turn gas control knob "D" to
and depress. Press and release piezo button "E" until
the pilot burner lights, at this stage air may be present in
the gas components, so the operation may need
repeating. When the pilot flame has lit and is stable,
keep knob "D" fully depressed for about 15 seconds and
then release. The pilot burner should then remain alight.
IF THE PILOT FLAME GOES OUT NOW OR AT
ANY TIME, A SAFETY DEVICE PREVENTS
IMMEDIATE RELIGHTING. WAIT 4 MINUTES
BEFORE ATTEMPTING TO RELIGHT.
If the pilot flame goes out on releasing knob "D", repeat
the lighting procedure but now keep knob "D" depressed
for a little longer after the pilot has lit.
If the pilot burner will not stay alight, refer to
"Thermocouple and Overheat Cutoff" in Fault Finding
Section of the Servicing Instructions.
The pilot flame size is factory preset and should envelop
the thermocouple to about the size given in diagram
11.3. If the flame size is incorrect, refer to "Pilot
Burner" in the Servicing Instructions.
Check for gas soundness of the pilot supply using a leak
detection fluid.
Test the operation of the flame supervision system by
turning knob "D" clockwise to
it shuts down within 60 seconds, indicated by a "click"
from the valve.
Fit the cover of the inner case, making sure that it is
fitted and seals correctly, using the four screws
previously removed, see diagram 6.2.
Make sure that all hot water draw off taps are closed then
set switch "C" to the "Off" position, see diagram 11.1.
With the boiler isolated from the electrical supply the
pilot flame may go out. If this should happen, wait four
minutes then relight the pilot burner following the above
lighting procedure but with the electrical supply
connected.
12 to 14mm
SPARK GAP
3 TO 4 mm
1 1 C o m m i s s i o n i n g
pilot/ignition position
position to ensure that
12 to 14mm
Diagram 11.3

11.4 Initial Lighting of Pilot - Honeywell

Identify the boiler controls, see diagram 11.1.
Check that the boiler is isolated from the electrical
supply at the external isolator.
Fully depress and hold in gas control knob "D".
Press and release piezo button "E" until the pilot burner
lights, (at this stage, air may be present in the gas
components of the boiler, therefore, this operation may
need to be repeated). When the pilot flame has lit and is
stable, keep knob "D" fully depressed for 15 seconds,
then release. The pilot burner should then remain alight.
If the pilot flame goes out now or at any time, a safety
device prevents immediate relighting. Wait four minutes
before attempting to relight.
If the pilot goes out on releasing knob "D", repeat the
above lighting sequence but this time keep knob "D"
depressed for a little longer.
If the pilot burner will not stay alight, refer to
"Thermocouple and Overheat Cutoff" in Fault Finding
section of the Service Instructions.
The pilot flame size is preset and should envelop the
thermocouple, the approximate size of the flame is
shown in diagram 11.4. If the flame size is incorrect
refer to the adjusting instructions in "Pilot Burner" in
Service Instructions.
Check for soundness of the pilot supply using leak
detection fluid. Take care not to splash any of the
electrical components.
Test the operation of the thermocouple flame failure
system to make sure the boiler shuts down within 60
seconds, indicated by a "click" from the gas valve.
Fit the cover of the inner case, making sure that it is
fitted and seals correctly, using the four screws
previously removed, see diagram 6.2.
Make sure that all hot water draw off taps are closed then
set switch "C" to "Off" as shown in diagram 11.1.
With the boiler isolated from the electrical supply the
pilot flame may go out. If this should happen, wait four
minutes then relight the pilot burner following the above
lighting procedure but with the electrical supply
connected.
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220650B