Doc No. 700025 Page 27 of 32
Step 4 Refit the electrode assembly and
ensure the connections are secure to prevent
incorrect sparking of the spark electrode.
Step 5 Check the positions and spark gap as
shown in diagram below.
Step 6 The burner assembly is ready to refit
after servicing the combustion fan and the
radiant tube assembly.
4.7 Radiant Tube Servicing
Step 1 Brush any dust from the exterior of the
tubes.
Step 2 Inspect the fan and burner tubes
visually. If the tubes appear clean, skip to
servicing the reflector.
Step 3 If required the interior of the tubes can
then be cleaned using an industrial vacuum
cleaner or by using long poles and a scraper.
Step 7 Refit components.
Step 4 Withdraw the turbulators from the
appliance. Carefully noting their condition and
position. Replace turbulators if necessary.
Step 5 The turbulators should be cleaned with
a soft brush.
4.8 Reflector Servicing
The condition of the reflectors should be noted.
If necessary the reflectors can be cleaned with
a mild detergent. This can significantly
improve the efficiency of the appliance.
4.9 Sweeping of Vent
Inspect the fresh air inlet duct and vent to
ensure they are free from any blockage or
obstruction. The air inlet terminal and vent
terminal should be inspected to ensure they are
not liable to obstruction.
4.10 Re-commissioning After Service
After servicing of the heater has been
undertaken,
it
will
be
necessary
to
re-commission the heater as detailed in the
commissioning chart in these instructions.
Figure 11. Burner head detail
