Hamworthy STRATTON MK3 Series, Инструкция по установке, наладке и обслуживанию

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06.02.2023 49 / 154
STRATTON MK3 - Installation, Use and Maintenance
7.2. Annual checks
• Switch off the electric power supply of the boiler,
• Close the gas supply,
• Remove the front panel (see § 4.2).
WARNING:
Protect all the electric connectors inside the control panel when
working on the boiler hydraulics (risk of splashing).
• Disconnect the gas pipe after the gas valve
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,
• Disconnect the electrodes, the fan and the air
transfer pipe at the air pressure switch,
• Unscrew the 4 M6 door fixing nuts ,
• Remove the burner holder assembly, fan, venturi,
gas valve and its tubing and gently place it on a
clean place*.
• If there are any deposits in the combustion
chamber, brush the tubes of the exchanger
with a non-metallic 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 door
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.
*
Figure 20 - Assembly to be dismantled for inspection
IMPORTANT:
Be very careful when handling the 150 kW boiler's burner due to its
heavy weight.
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