A
Appendix A: Gas Type Conversion
46
Blue Seal Evolution Series GT45 / GT46 / GT60
©
Moffat Ltd, January 2007
Revision 1/
NOTE:
•
These conversions should only be carried out by qualified service persons. All
connections must be checked for leaks before re-commissioning the appliance.
•
For all relevant information and specifications refer to the table at the end of this
section.
1.
Ensure that the gas supply has been turned off.
2.
Open the front door of the unit to access the
main burner and pilot burner injectors.
3.
Connect a manometer to the upper test point
(Line Pressure) on the gas control valve located
through the access hole in the enamelled
control panel. Turn on the gas and ensure that
the supply pressure is within the specification
shown in the ‘Gas Specifications Table’ at the
end of this section.
Main Burner Injectors
1.
Unscrew and remove the main burner injectors
(12.7mm A/F) located in front of main burner
venturi openings.
2. Determine the correct injectors for the
corresponding gas from the ‘Gas Specifications
Table’ at the end of this section.
3.
Screw in the correct sized injectors. Refer to the
‘Gas Specifications Table’ at the end of this
section.
Pilot Burner Injectors
1.
Unscrew the pilot supply tube from the pilot
burner fitted to the mounting bracket and
remove the pilot injector.
NOTE: On appliances fitted with piezo igniter
electrodes, to prevent damage to the
electrode, unscrew and remove the
electrode from the mounting bracket before
unscrewing the pilot supply tube.
2.
Determine the correct sized pilot injectors for the
corresponding gas from the table overleaf.
3.
Fit the correct sized injector into the pilot burner
and re-connect the gas supply tube to the pilot
burner.
4.
Refit the piezo igniter electrode to the mounting
bracket and tighten hand tight.
C
AUTION
:
Ensure the unit is isolated from the gas supply before commencing servicing.
Thermocouple
Thermopile
Piezo Igniter
Pilot Burner
Main Burner
Injector
Supply Pressure
Test Point
Operating Pressure
Test Point
Pilot Adjusting
Screw
Operating Pressure
Adjusting Screw
Fig A1
Fig A2
Fig A3
