Glow-worm ENERGY 18r -A (H-GB) - Removing the Gas-Air Mixture Unit; Cleaning the Heat Exchanger

10 Inspection and maintenance
20 Installation and maintenance instructions SUSTAIN ..r 0020200958_00
10.3 Removing the gas-air mixture unit
Note
The gas-air mixture unit consists of three main
components:
– Ventilator
– Gas valve
– Burner cover
1. Switch off the product via the main switch.
2. Close the gas isolator cock.
3. Remove the front casing. (→ Page 10)
A
B
1
4. Remove the air intake pipe (1).
C
B
A
2
3
5. Push the clip (2) upwards.
6. Remove the flue pipe (3).
A
D
C
B
7. Remove the plugs from the gas valve.
8. Remove the gas-air mixture unit.
9. Remove both burner seals from the burner cover.
1
10. Remove the burner (4).
10.4 Cleaning the heat exchanger
1. Check the heat exchanger for damage and dirt.
2. If required, clean and replace the heat exchanger.
1
3. Protect the folded down electronics box against sprayed
water.
4. Clean the ribs of the heat exchanger (1) with water.
◁ The water runs out via the condensate tray.