Welbilt Convotherm 4 - Page 57

4 Operating principles
Training manual Convotherm 4 57
Burner monitoring for convection
Item Name Function
1
Ground electrode
Defines ground for ionization monitoring:
 Standard current during operation = 24µA
 For monitoring: current > 1µA = flame present
2
Ignition electrode
Diverts the ignition spark to a defined point
Please note: When working with the ignition electrode, make sure it has
had time to cool down sufficiently --> risk of breakage:
3
Burner mantle Distributes the gas/air mixture (produces an enclosed burner structure).
4 Wiring-compartment safety
thermostat (Clixer) (2B9)
5
Boiler safety thermostat (2B8) Senses if boiler is too hot.
6 Convection safety thermostat
(2B7)
Senses if convection heater is too hot.