23
Mexico Slimline RS 3/40 & 3/50 -
Installation
SERVICING
SER
VICING
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.
d.
The spark gap is correct. Refer to Frame 37.
e.
The thermocouple tip is not burned or cracked.
f.
The position of the thermocouple relative to the pilot
burner is correct. Refer to Frame 37.
g.
The thermocouple terminal at the gas valve is clean
and secure.
h.
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 Frames 28 & 29. Undo the gas
cock union. Remove the burner assembly.
2.
Undo the 2 wing nuts to remove the cleanout cover.
3.
Lift out the flue baffle. (RS3/40 only)
4.
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
5.
Check that the flue outlet duct is unobstructed.
31 CLEANING THE FLUEWAYS
29 BURNER AND CONTROLS ASSEMBLY
1.
Lift off lower front panel (refer to Frame 28) and
remove the grille assembly. Undo the gas cock union.
2.
Remove the wing nuts and washers, securing the
burner front plate and remove the burner/controls
assembly from the boiler.
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.
30 CLEANING THE BURNER ASSEMBLY
3.
When replacing
a defective
main burner bar
it is most
important that
the baffles are
fitted to the new
burner.
