6
Service Procedures
26
Blue Seal Evolution Series GT45 / GT46 / GT60
©
Moffat Ltd, January 2007
Revision 1/
Note:
Ensure gas is isolated at main supply be-
fore any alterations are carried out on main
gas controls.
1) Remove control panel (refer 6.1.1).
2) Disconnect thermocouples, thermopile and
thermostat leads, and pilot supply from gas
control(s).
3) Undo main injector supply line at bottom of
gas control then undo gas control supply pipe
from the top of the unit. Main gas control
assembly can now be removed after removing
2 securing screws fixing assembly to side
panel inner flanges.
4) Replace gas control in assembly.
5) Refit by reversing above procedure.
Note:
Ensure gas thread connections are re-
sealed and electrical connections secured
when servicing.
6) Adjust pressure and pilot size as per 6.3.1
and 6.3.3.
Figure 6.2.11
6.2.11 Gas control
(Twin tank models)
6.2.10 Gas control
(Single tank models)
Note:
Ensure gas is isolated at main supply be-
fore any alterations are carried out on main
gas controls.
1) Remove control panel (refer 6.1.1).
2) Disconnect thermocouples, thermopile and
thermostat leads, and pilot supply from gas
flame failure valve.
3) Undo gas supply line located on top of gas
control.
4) Undo main injector supply located at the
bottom of the gas control.
Figure 6.2.10
Flame failure
Main injector
supply
5) Remove two securing screws on the front side
of the panel and remove gas control.
6) With gas control on bench remove the flame
failure valve and pilot line that is connected to
the gas control.
7) Refit by reversing the above procedure.
Note:
Ensure gas thread connections are re-
sealed and electrical connections secured
when servicing.
8) Adjust pressure and pilot size as per 6.3.1
and 6.3.3.
Securing
screws
Gas supply
Thermostat / thermopile leads
