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Содержание SC40

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Страница 4: ...o high 28 8 11 3 Gas control will not open coils defective 28 8 11 4 Gas Air mixture is not correctly adjusted 28 8 11 5 Check glow igniter 28 8 11 6 Check ionisation current 28 8 11 7 inspection cleaning replacement of the ionisation probe 29 User manual 30 General 30 Cleaning the unit 30 Holidays 30 Brrrr the central heating is not working 30 Electricity and gas 30 Water and air 30 Other causes ...

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Страница 23: ... the desired final temperature of the HWS cylinder There is a burner demand when the flow temperature is lower than 85 C and the return temperature is lower than the desired HWS cylinder temperature With HWS cylinder heat demand the pump state is high 5 2 2 2 HWS cylinder with external sensor with modulating space unit The modulating thermostat will generate a desired HWS temperature value The uni...

Страница 24: ...ump is switched to high speed and the water pressure active pump pressure is measured and stored in the software If the difference between the active pump pressure and the static pressure is between 0 05 and 0 54 bar a correct water flow throuhg the heat exchanger is present and the ignition time starts If the difference is less than 0 05 bar or more than 0 54 bar the regulation locks The display ...

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