Burner Adjustment Checks
With burner lit, check flame quality and low flame
setting are in accordance with Section 1.10.
To Turn A Burner OFF
Turn gas tap clockwise to stop, as shown in Figure 1.
Important
After installation, the engineer responsible should
check that all gas connections are good and tight.
Ensure unit is operating satisfactorily before leaving
the premises.
2.6 INSTRUCTION TO USER
After installing and commissioning appliance, please
hand User Instructions to user or purchaser and
ensure that the person(s) responsible understands
instructions for lighting, cleaning and correct use of
unit. It is important to ensure that location of gas
isolating cock is made known to user and that the
procedure for operation in an emergency be
demonstrated.
SECTION 3 - SERVICING and
CONVERSION
Important
BEFORE ATTEMPTING ANY SERVICING,
ENSURE THAT ISOLATING COCK IS TURNED
OFF AND CANNOT BE INADVERTANTLY TURNED
ON.
AFTER ANY MAINTENANCE TASK, CHECK
APPLIANCE TO ENSURE THAT IT PERFORMS
CORRECTLY AND CARRY OUT ANY NECESSARY
ADJUSTMENTS AS DETAILED IN SECTION 1.
After carrying out any servicing or exchange of gas
carrying components -
ALWAYS CHECK FOR GAS TIGHTNESS!!
3.1 CONVERSION TO OTHER GASES
This unit may be set for operation with Natural Gas
(2H) at supply pressure of 20 mbar or propane (3P) at
37 mbar.
For detailed procedures, refer to appropriate sections
of this document.
On completion, reapply any seals and locking nuts.
To Convert From NATURAL to PROPANE Gas
Change gas valve(s).
Change injectors.
Remove governor.
Adjust low flame setting.
Adjust burner aeration.
Change data plate.
To Convert From PROPANE to NATURAL Gas
Change gas valve(s).
Change injectors.
Install governor and adjust for inlet pressure
accordingly.
Adjust low flame setting.
Adjust burner aeration.
Change data plate.
3.2 REMOVAL OF CONTROL PANEL
To remove control panel, pull off control knobs and
remove fat-collecting drawer.
Remove fixings in top flange of facia panel,
then lower panel and withdraw it forward.
3.3 BURNERS
Burners and injectors should be cleaned periodically
to maintain maximum performance.
3.3.1 Main Burner
The adjustment of burner pressure is described in
Section 1.9. Burners are accessed by removing lava
rock, bottomgrates and hearth surround.
Burners are best cleaned with a wire brush,
ports being freed fromblockage with a metal broach,
any loose material being shaken out via burner
shank. Ensure that burners are dry and free from
any cleaning material before replacing.
3.3.2 Pilot Assembly
To remove proceed as follows:
a) Remove branding bars, lava rock, bottomgrates
and hearth.
b) Release themocouple fixing nut and remove
thermocouple from assembly.
c) Release pilot pipe fixing nut frompilot assembly
taking care not to lose injector removed with nut.
d) Undo fixing which secures pilot assembly.
e) Re-assemble in reverse order.
3.4 INJECTORS
Should main injectors become blocked, remove these
fromchargrill for cleaning. First remove lava rock,
bottomgrates, hearth and burners. Unscrew injectors
using a suitable spanner. Soak in solvent to remove
blockage.
3.5 FLAME FAILURE THERMOCOUPLE
To gain access, remove front panel and hearth
surround.
To remove thermocouple from pilot assembly, undo
fixing nut fromwithin control com
partm
ent and
withdraw.
To remove thermocouple from gas tap, undo fixing
nut on tap body.
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