Gas Pressure Adjustment; Replacement Of Parts - IDEAL Mexico Super 450 FF Installation Manual

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61 RE-ASSEMBLY
Re-assemble the boiler in the following order.
1. Refit the flue baffles.
2. Inspect the collector hood rope gasket and replace, if
necessary, ensuring that the self adhesive rope is fitted
centrally on to the lip of the collector hood / fan assembly.
The boiler efficiency will be adversely affected if
incorrectly fitted. Refit the collector hood cover with the 4
screws. Tighten the screws. Ensure that the sealing
gasket is compressed. Refit the pressure pipe.
3. Refit the positive pressure tubes on the top of the fan
housing. Reconnect the electrical leads.

62 GAS PRESSURE ADJUSTMENT

1. Pilot Pressure
Pilot adjustment is factory set to maximum and no
adjustment is possible.

REPLACEMENT OF PARTS

63 GENERAL
When replacing any component:
1. Isolate the electricity supply.
2. Turn OFF the gas supply.
3. Remove the lower front panel and grille assembly.
64 SIGHTGLASS REPLACEMENT
1. Unfasten the 2 M5 hexagon nuts and
washers. Remove the assembly from the front
plate.
2. Fit the new sightglass and re-assemble, as
shown.
3. Retighten the 2 M5 hexagon nuts to ensure an
airtight seal. Do NOT overtighten.
Mexico Super 440 FF - 480 FF -
SERVICING
4. Refit the burner assembly.
5. Reconnect the gas supply and the electrical wiring.
7. Check for gas soundness. Check the gas service cock
8. Refit the boiler casing (Refer to Frame 51).
9. Refit the lower front panel and secure with the 2 fixing
2. Main Burner Pressure
Note. In order to assist fault finding, the control box printed
circuit board is fitted with 2 indicator lights which represent
the following boiler conditions:
Neon I3.
Neon SG1. Flashes to indicate ignition operation (stops
The boiler MUST NOT be operated if the casing is not
fitted.
Installation
Refer to Frames 39 & 43.
and pressure test point.
screws.
After servicing, reference should be made to Table 1,
which quotes details of the output with the related
burner pressure and heat input. Any required
adjustments should be made using the pressure
adjustment screw. Refer to Frame 53, 'Initial Lighting.
Refit the lower front panel and secure with the 2 fixing
screws.
Mains electricity ON.
after detection).
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