SERVICING
24
Mexico Slimline RS445 -
Installation & Servicing
Check that:
a. The pilot burner is clean and unobstructed.
b. The pilot shield is clean and unobstructed.
c. The ignition electrode is clean and undamaged.
d. The ignition lead is in good condition and securely
connected.
e. The spark gap is correct. Refer to Frame 37.
f.
The sightglass is clean and undamaged.
5. Clean or renew components as necessary.
1. Lift off lower front panel and remove the grille
assembly. Refer to Frame 29.
2. Undo the gas cock union. Remove the burner
assembly.
3. Undo the 2 wing nuts to remove the cleanout cover.
4. Lift out the flue baffle.
5. 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
6. Check that the flue outlet duct is unobstructed.
32 CLEANING THE FLUEWAYS
30 BURNER AND CONTROLS 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 and ignition electrode; ensure they
are clear and in good condition.
31 CLEANING THE BURNER ASSEMBLY
MEX
2263
5
4
MEX
2262
1. Remove the 2 screws and lift off the front panel
and remove the grille assembly from the casing.
Refer to Frame 29.
2. Disconnect the electrical leads from the gas valve.
3. Disconnect the ignition lead from the PCB.
4. Undo the gas service cock union nut.
5. Remove the 2 wing nuts and withdraw the burner and
controls assembly, complete, from the boiler.
6. When replacing a defective main burner bar it is most
important that the baffles are fitted to the new burner.
SER
VICING
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Summary of Contents for Mexico Slimline RS 445
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