6
Service Procedures
21
Blue Seal Evolution Series GT45 / GT46 / GT60
©
Moffat Ltd, January 2007
Revision 1/
ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY
QUALIFIED PERSONS ONLY.
ENSURE GAS SUPPLY IS SWITCHED OFF BEFORE SERVICING
ALWAYS CHECK / TEST FOR GAS LEAKS AFTER SERVICE REPAIRS ON THE GAS
SYSTEM
WARNING:
Section
Page Number
6.1 Access......................................................................................................22
6.1.1 Control Panel.......................................................................................................22
6.2 Replacement............................................................................................22
6.2.1 Thermocouple (Gas Control).................................................................................22
6.2.2
Thermocouple (Flame Failure Valve - Single Tank Models).......................................23
6.2.3 Pilot
Injector........................................................................................................23
6.2.4 Pilot Burner.........................................................................................................23
6.2.5 Over-temperature Safety Thermostat.....................................................................23
6.2.6 Thermostat..........................................................................................................24
6.2.7 Main
Burner Injector............................................................................................24
6.2.8 Main Burner.........................................................................................................24
6.2.9 Thermostat..........................................................................................................25
6.2.10
Gas Control Valve (Single Tank Models).................................................................26
6.2.11
Gas Control Valve (Twin Tank Models)...................................................................26
6.2.12
Piezo Ignitor........................................................................................................27
6.2.13
Piezo Ignition Electrode........................................................................................27
6.2.14 High
Tension Lead...............................................................................................27
6.2.15
Flame Failure Valve..............................................................................................27
6.3 Adjustment / Calibration.........................................................................28
6.3.1 Pilot
Flame Adjustment.........................................................................................28
6.3.2 Thermostat Calibration.........................................................................................28
6.3.3 Operating Pressure...............................................................................................28