1 Ignition electrode
2 Fuel nozzle
3 Pressure plate
1 Ignition electrode
2 Fuel nozzle
9.20 Output of flow-type heater
View from below
1 Temperature sensor warm water
2 High-pressure line from the booster heater to the high-
pressure connection
3 High-pressure line from the safety block to the boiler
NOTE
The temperature sensor measures the warm water tem-
perature after the booster heater and thus regulates the
burner operation.
74
English 5.906-736.0 Rev. 00 (07/15)