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Mexico Super RS485 - RS4125 -
Installation & Servicing
SERVICING
2. Main Burner Pressure
After servicing, reference should be made to Table 2,
which quotes details of the rated output with the
related burner pressure and heat input. Any required
adjustments should be made using the pressure
adjustment screw. Refer to Frame 27, 'Initial Lighting.
Refit the lower front panel
REPLACEMENT OF PARTS
37 GENERAL
When replacing any component:
1.
Isolate the electricity supply.
2.
Turn off the gas supply at the boiler.
3.
Undo the 2 screws and remove the lower front panel grille assembly.
For replacement of programmer units refer to the separate Programmer Kit Instructions.
36 GAS PRESSURE ADJUSTMENT
1. Pilot Pressure
Pilot adjustment is factory set to maximum and
no adjustment is possible.
38 SIGHTGLASS REPLACEMENT
39 PILOT BURNER REPLACEMENT
1.
Refer to Frame 37.
2.
Unfasten the 2 M5 hexagon nuts and washers.
Remove the assembly from the front plate.
3.
Fit the new sightglass and reassemble, as
shown.
4.
Retighten the 2 M5 hexagon nuts to ensure an
airtight seal.
Do NOT overtighten.
1.
Refer to Frame 37.
2.
Undo the 2 screws, lift off the front
panel and remove the grille
assembly. Refer to Frame 31.
3.
Disconnect the electrical leads
from the gas valve.
4.
Disconnect the ignition lead from
the PCB.
5.
Undo the gas cock union. Remove
the 4 wing nuts and withdraw the
burner and controls assembly,
complete, from the boiler.
6.
Prise the retaining clip out of the
groove in the electrode, using a
small screwdriver, and withdraw
the electrode.
7.
Undo the pilot supply pipe
connection and ease clear of
the pilot burner. DO NOT LOSE
the pilot injector, which is a
push-fit in the pilot burner
housing.
8.
Remove the 2 securing screws
and washers, and withdraw the
pilot burner.
9.
Fit the new pilot burner and
reassemble in reverse order,
ensuring that:
a.
The injector is in position
when refitting the pilot
supply.
b.
A gas-tight joint is made.
c.
The spark gap is correct.
Refer to Frame 44.
SER
VICING
200942-1.p65
3/4/2004, 9:25 AM
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