Removing The Heat Exchanger - Wolf FGB-K Series Installation And Maintenance Instructions For Contractors

Emptying the condensing
boiler on the heating water side
Removing the flow and
return pipes
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28.8. Removing the heat exchanger

- Close the flow and return maintenance shut-off valves
- Open the drain valve
- Open the manual air vent valve
- Disconnect the plugs for the flow temperature sensor, high limit safety cut-out
and flue gas temperature
- Disconnect the return sensor and pressure sensor plugs
- Release the retaining clips
- Undo the pump fitting
- Remove the pipes
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