
10.7 Disassembling heat
exchanger
The following work has to be carried out, if the heat exchanger has to be fully dis-
assembled:
Note:
The gas burner must be removed (see section Removing the gas burner).
1. Close shut-off valves of flow and return.
2. Drain off boiler water
3. Loosen plugs of boiler sensors (flow and return).
4.
Loosen screw connectors of flow and return (1 and 2) at the heat exchanger
(flat seal)
5. Remove auto-de-aerator.
6. Pull off cable from water pressure monitor.
7. Undo fitting at the pump replacement pipe and remove the pipe
8.
Paramount three 60: Remove return pipe.
9. Paramount three 60: Pull off plug from gas valve, loosen and disassemble gas
valve.
10. Paramount three 95/115: Remove the connection line between the heat ex-
changer and the collecting tray
11. Paramount three 95/115: Push the slide coupling on the flue pipe upwards
12. Loosen nuts at collecting tray, remove yoke and disassemble collecting tray.
13. Loosen nuts of holding sheet at the rear wall, lift heat exchanger from the rear
wall and take out.
14. For cleaning the heat exchanger, rinse with soft water jet (without additives).
10.8 At the end of the
maintenance work
- After finishing the cleaning work, re-install heat exchanger and burner.
- Check the nominal heat load and exhaust gas values.
Maintenance
396532 07.11 Paramount three 30-115 kW 125
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