Changing Components - Baxi Brazilia F 5 Installation And Servicing Instructions

© Baxi Heating U.K. Limited 2007.
Fig. 20
Burner Retaining Plate
Fig. 22
Spark
Electrode
Burner Flame Ports
Fig. 23
Grommet
Electrode Lead
Thermocouple
Gas Tap Locating
Bracket
Fig. 24
Injector
Washer
Fig. 21
Tabs
Igniter
Burner Gauze
Flue Outlet Tube
Thermocouple
Gas Tap
Electrode Lead

7.0 Changing Components

7.1
1. Before changing any components please read
Section 1.3 Important Information.
2. Turn off the gas supply and ensure that the
appliance is cold.
3.Remove the control knob by pulling forward,
Mounting Lugs
then remove the case by easing upwards and
forwards until it is clear of its retaining lugs
(Fig. 20).
4. After changing any components
re-commission the appliance
7.2
1. Pull off the spark lead at the rear of the igniter.
2. Straighten the tabs securing the piezo unit to
Electrode
Lead
the tap retaining plate and remove.
3. Fit the new piezo unit and twist the tabs
slightly to secure.
4. Replace all components in the reverse order of
dismantling.
7.3
1. Undo the heat exchanger retaining nuts and
washers and draw the casting forwards off the
locating studs.
Insulation
2. Remove the three screws holding the burner
retaining plate to the airbox and undo the
thermocouple nut from the gas tap (Fig. 22 & 24).
3. Ease the thermocouple and electrode leads
from the rubber grommet (Fig. 23).
4. Disengage the burner from the injector and
pull the electrode lead off the spark electrode
(Fig. 22).
5. Pull off the spark electrode lead at the rear of
the igniter (Fig. 24).
6. Remove the supply pipe from the gas tap.
7. Undo the nut holding the gas tap to its
retaining bracket, and disengage the tap from the
bracket (Fig. 24).
7a.Undo the screw holding the thermostat
locating bracket to the fire body, and disingage
the thermostat from the fire.
8. Remove the injector and sealing washer. If the
washer is damaged it must be replaced.
9. On re-assembly ensure that the airbox sealing
grommet is correctly positioned and check for
gas soundness.
Changing Components
Piezo Unit (Fig. 21).
Gas Control Tap or Thermostat
13