Westen NOVADENS BOYLER 240, Инструкция по эксплуатации

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96.091.1 - GB InstRUCtIOns FOR FIttERs
4. DHW ExpansIOn vEssEL (avaILaBLE On REqUEst)
If :
• the pressure of the water supply or lifting system is such as to require the installation of a pressure reducer (pressure higher than 4
bar)
• a non-return valve is fitted to the water supply line
• the water supply network is insufficient for the expansion of the water contained in the storage boiler and it is necessary to use the
DHW expansion vessel.
Expansion vessel kit comprising:
1 stainless steel expansion vessel;
1 support for expansion vessel;
1 connection hose.
tip
For the efficient operation of the expansion vessel, the pressure of the water supply must be lower than 4 bar. If it is not, install a pressure
reducer. Adjust the pressure reducer to obtain a water supply pressure less than 4 bar.
storage boiler DHW expansion vessel hose
Figure 19
0302_2701
To optimise boiler efficiency, carry out the following annual controls:
• check the appearance and airtightness of the gaskets of the gas and combustion circuits;
• check the state and correct position of the ignition and flame-sensing electrodes;
• check the state of the burner and make sure it is firmly fixed;
• check for any impurities inside the combustion chamber. Use a vacuum cleaner to do this;
• check the gas valve is correctly calibrated;
• check the pressure of the heating system;
• check the pressure of the expansion vessel;
• check the fan works correctly;
• make sure the flue and air ducts are unobstructed;
• check for any impurities inside the siphon fitted on certain boilers;
• check the magnesium anode, where present, for boilers fitted with storage boilers.
WaRnInGs
Before commencing any maintenance operations, make sure the boiler is disconnected from the power supply.
afterwards, move the knobs and/or operating parameters of the boiler to their original positions.
5. annUaL sERvICInG