Ideal Boilers FF 350, Installation And Servicing

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32 Classic FF -
Propane Installation & Servicing
SERVICING
63 MAIN BURNER & MAIN BURNER INJECTOR REPLACEMENT
1. Refer to Frame 56.
2. Remove the screw retaining the front burner
support strap to the combustion chamber.
3. Remove the M5 pozi screw, situated at the left
hand bottom rear of the burner. Pull the burner
downwards to disengage the retention tab and
remove the burner.
4. At this stage the main burner injector can be
removed, checked, cleaned or replaced as
required. Ensure that an approved jointing
compound us used sparingly.
5. Fit the new burner, ensuring that the retention tab
is correctly located in the air box slot and
reassemble in reverse order.
6. Check the burner for cross-lighting and flame
stability.
1. Refer to Frame 56.
2. Remove the burner and air box assembly. Refer to Frame 51.
3. Remove the electrode retaining nut.
4. Remove the pilot shield.
5. Remove the spark electrode and integral lead.
6. Refit the new electrode and lead in reverse order.
Ensure that the pilot shield is replaced.
7. Check the spark gap. Refer to Frame 61.
8. Reassemble in reverse order.
9. Check the operation of the boiler.
64 GAS CONTROL VALVE REPLACEMENT
Note. Refer also to Frame 75 of 'Exploded Views' for
illustration of the procedure detailed below.
1. Refer to Frame 56.
2. Remove the burner and air box assembly. Refer to
Frame 51.
3. Remove the fixing screws.
Swing the control box down into the servicing position.
4. Disconnect the gas control valve electrical leads.
5. Undo the gas cock union .
6. Whilst supporting the gas control valve, remove the 2
screws retaining the manifold to the back panel.
7. Remove the gas control / manifold assembly.
8. Remove the 4 screws retaining the manifold to the gas
control valve, and fit the manifold to the new valve.
Ensure that the new control is fitted the correct way round
(an arrow engraved on back indicates the direction of
flow).
9. Transfer the gas cock union to the new gas control valve,
using an approved jointing compound.
10. Reassemble in reverse order.
11. Check the operation of the boiler.
62 IGNITION ELECTRODE AND LEAD REPLACEMENT
SER
VICING