Valor BRAVA 348, Installer And Owner Manual

Page: 28 / 48

12.3 To remove the electronic igniter unit.
1.
Remove the fascia as in section 12.2.
2
. Remove the battery from the igniter unit.
3.
Note the location of the leads to the igniter unit then disconnect them ensuring that
it is the tags that are held and not the leads. Pulling on the leads may cause damage.
4.
Unscrew and remove the two fixing screws that secure the igniter unit to the
mounting bracket.
5.
Replace in the reverse order.
12.4 To remove the pilot unit.
1.
Remove the fascia as in section 12.2.
2.
Disconnect the thermocouple connection at the bottom of the shut-off valve.
3.
Disconnect the electrode lead from below the pilot electrode.
4.
Disconnect the pilot pipe from the pilot.
5.
Carefully remove the pilot unit.
6.
Replace in the reverse order ensuring that the pilot injector is supported to prevent
the body from rotating whilst tightening the pilot pipe.
Note: 1 The pilot unit must be replaced as a whole assembly. Its individual
components are not separately replaceable.
2. Once removed, ensure that the dust cage is cleaned before refitting.
12.5 To remove the injectors.
1.
Remove the fascia as in section 12.2.
2.
Support the injector carrier to avoid straining the pipe work. If working on the lower
injector do NOT hold the pressure test point connector as this may cause damage.
3.
Unscrew and remove the injector.
4.
When replacing the injector place a very small amount of suitable high temperature
(100°C - 150°C) sealant on the thread of the injector. Replace in reverse order being
careful not to get any sealant onto the ends of the injector as this may cause the
injector to become blocked.
12.6 To remove the burner only.
1.
Remove the fascia as section 12.2.
2.
Isolate the gas supply.
3.
Detach and remove the upper and lower
injector pipes. Do NOT hold the pressure test
point connector as this may cause damage.
4.
Unscrew and remove the two screws that
secure the pilot unit to the burner.
5.
Remove the battery from the electronic
igniter unit.
6.
Detach the left end of the burner module
from the radiant box by removing one screw
and a wing nut (See figure 17).
Page 28
©
GDC Group Ltd. 2011
INSTALLER GUIDE
Figure 17. Burner module removal