Cleaning The Flue Gas Temperature Sensor; Cleaning The Primary Air Inlets - HDG Euro 30 Operation Manual

7 Cleaning and servicing the heating system – Procedure
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LEANING THE FLUE GAS TEMPERATURE SENSOR
Important!
✎
Observe the "Generally applicable safety instructions" in this
section.
1. Allow the fire in the boiler to burn out and cool off.
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Figure 7/15 - Cleaning the flue gas temperature sensor
2. Remove the upper cover (1) by lifting it upward.
3. Loosen the M10 union nut (SW 17) (3) and pull the flue gas
temperature sensor (2) out of the clamp screw connections.
4. Clean the sensor surface with a moist cloth.
5. Reinstall the flue gas temperature sensor (2) in the reverse
sequence.
6. Close the boiler in the reverse order.
✓
The flue gas temperature sensor has been cleaned.
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LEANING THE PRIMARY AIR INLETS
Important!
✎
Observe the "Generally applicable safety instructions" in this
section.
1. Allow the fire in the boiler to burn out and cool off.
2. Open the fuel chamber door.
✎
See "Cleaning the fuel chamber" in "Cleaning the fuel chamber
and ash compartment" in this section.
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