Pilot Burner Replacement - IDEAL RS30l RS40 Installation & Servicing Instructions Manual

SERVICING
10 PIEZO UNIT REPLACEMENT
1. Refer to Frame 8.
Control box
Piezo unit
4. Remove the control box cover.
5. Remove the piezo unit.
Refit the new unit and re-assemble in reverse order.
6. Replace the boiler casing - Frame 6.
7. Check the operation of the new piezo unit.
12 SUPPRESSOR REPLACEMENT
1. Refer to Frame 8.
Terminal strip
3 . Remove
the suppressor
by removing the screw
retaining the terminal block, lifting the
terminal block and unscrewing the suppressor lead
connections
4. Fit the new suppressor and re-assemble in reverse order.
Ensure that all of the electrical connections are correctly
remade - refer to 'Wiring Diagrams'.
5. Replace the boiler casing. Refer to Frame 6.
6. Check the operation of the control thermostat.
13 CONTROL THERMOSTAT REPLACEMENT
1. Refer to Frame 8.
2. Unclip the thermostat capillary from the two clips
3. Slacken the screw at the thermostat pocket
retaining screw.
2. Disconnect the ignition
and earth leads from
the piezo unit.
3. Unscrew the locking
nut at the rear of the
piezo unit mounting
bracket.
2. Remove the screw retaining
the control box cover and
remove the cover, c/w
thermostat.
Suppressor
situated on the back panel
Securing
DETAIL
screw, see
OF
note 3
THERMOSTAT
POCKET
Thermostat capillary
Control box
REPLACEMENT OF PARTS

11 PILOT BURNER REPLACEMENT

1. Refer to Frame 8.
2. Remove burner and air box assembly. Refer to Frame 3.
3. Remove the electrode
retaining nut. Remove
the pilot shield and
electrode.
Thermocouple
Electrode retaining
nut, see note 3
Electrode
4. Unscrew the central pilot fixing screw and lift the pilot clear
of thermocouple and pilot injector.
If required, the pilot
Thermocouple
injector may now
be unscrewed and
the injector
checked or
replaced as
necessary.
Ensure that the copper sealing
washer is fitted when replacing
the injector.
5. Replace the pilot burner and retain with the M4 screw
previously removed.
6. Replace the electrode and pilot shield - retaining both with
the electrode nut.
7. Replace the airbox assembly and ensure that the gasket is
in position.
8. Replace the burner.
9. Check the pilot burner relationship to the main burner and
spark gap. Refer to Frame 7.
10. Replace the boiler casing. Refer to Frame 6.
11. Check the pilot length. Refer to Frame 7.
12. Check the pilot operation (cross lighting, holding in time,
etc.).
4. Pull off the thermostat knob. Remove the control box cover
retaining screw and remove the cover, complete with
thermostat.
5. Remove the two screws securing the thermostat.
Control thermostat
Thermostat
knob
6. Pull off the two electrical connections from the thermostat
head and the thermostat earth lead.
7. Fit the new thermostat and refit in reverse order. Ensure
that the phial is correctly replaced in the pocket and the
capillary routed as previously.
8. Replace the boiler casing. Refer to Frame 6.
9. Check the operation of the new thermostat. Refer to
Frame 25 'Installation.'
Pilot
shield
Fixing screw,
see note 4
Pilot burner
Control
box
Control box cover
retaining screw
17