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Mexico Super RS485 - RS4125 -
Installation & Servicing
SERVICING
32 BURNER AND CONTROLS ASSEMBLY REMOVAL
35 REASSEMBLY
MEX 2179
Baffles
34 CLEANING THE FLUEWAYS
Check that:
a.
The pilot burner is clean and unobstructed.
b.
The ignition electrode is clean and undamaged.
c.
The ignition lead is in good condition and securely
connected.
d.
The spark gap is correct. Refer to Frame 44.
5.
Clean or renew components as necessary.
33 CLEANING THE BURNER ASSEMBLY
1.
Brush off any deposits that may have fallen onto the
burner head (ensuring that the flame ports are
unobstructed) and remove any debris that may have
collected.
Note.
Brushes with metallic bristles MUST NOT be used.
2.
Remove the main burner injector .Check, clean or
replace, as required.
3.
Refit the injector, using an approved jointing compound.
4.
Inspect the pilot burner, thermocouple and ignition
electrode; ensure they are clear and in good condition.
Reassemble the boiler in the following order :
1.
Refit the flue cleanout cover, renewing any damaged or
deteriorating sealing gasket.
2.
Refit the casing top panel.
3.
Reconnect the electrical wiring and refit the control panel,
ensuring that the thermostat phial and phial retaining clip
are correctly located in the thermostat pocket and secured
by the split pin. Refer to Frame 31.
4.
Check the sightglass in the front plate - clean or renew as
necessary.
5.
Renew any damaged or deteriorating front plate gasket.
6.
Refit the burner and controls assembly.
7.
Reconnect the gas service cock.
8.
Refit the grille assembly.
Gas service
union nut
Combustion
chamber
Wing nuts
MEX 2183
1.
Remove the 2 wing nuts and lift off the cleanout cover.
2.
Lift out the flue baffles, if fitted.
3.
Remove all loose deposits from the heat exchanger,
especially from between the fins, using a suitable
brush. Remove all debris from the combustion chamber
base
4.
Check that the flue outlet duct is unobstructed.
5.
Refit flue baffles. Refer to Frame 10.
1.
Remove the 2 screws, lift off
the front panel and remove
the grille assembly. Refer to
Frame 31.
2.
Disconnect the electrical
leads from the gas valve.
3.
Disconnect the ignition lead
from the PCB.
4.
Undo the gas cock union.
Remove the 4 wing nuts and
withdraw the burner and
controls assembly, complete,
from the boiler.
5.
Place on a convenient
working surface.
MEX 2213
SER
VICING
200942-1.p65
3/4/2004, 9:25 AM
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