IDEAL EVO S 50, Установка и обслуживание

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27.08.2018 39 / 136
EVO S - Installation and Servicing
7.2. Annual checks
• Switch off the electric power supply of the boiler,
• Close the gas supply,
• Remove the front panel (see § 4.2, page 20).
figure 18 - Open EVO S
WARNING:
Protect all the electric connectors inside the control panel when
working on the boiler hydraulics (risk of splashing).
• Disconnect the gas tube after the gas valve,
• Disconnect the electrodes, the fan and the air
transfer pipe by the air pressure switch,
• Unscrew the M6 nuts attaching the door,
• Remove the burner support, fan and venturi
assembly and carefully put it in a clean place.
• If there are any deposits in the combustion
chamber, brush the tubes of the exchanger
with a non-metal brush. Chemical cleaning
of the combustion chamber with an acid or
alkaline product is forbidden . Vacuum clean
the deposits.
• If the refractory insulation at the bottom of the
combustion chamber and of the burner support
is damaged, then it must be replaced.
• If the level of condensates in the combustion
chamber has risen due to poor evacuation,
the refractory insulation at the bottom of the
combustion chamber and of the burner holder
must be replaced.
• Replace the seals on the burner holder if they
are damaged.
• The burner rail does not require any maintenance.
Replace it, if damaged.
U0561599-#