Hamworthy Purewell Variheat mk2 70c, Инструкция по установке, наладке и обслуживанию

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HAMWORTHY HEATING LTD
28
PUREWELL Variheat mk2 218612 A03
11.0 REPLACEMENT OF FAILED COMPONENTS
There are a number of components listed below which can be replaced simply and quickly by following the
given procedure. In each case carry out the appropriate part of the commissioning procedure & check the
operation of each component replaced. See
Section 7.3:Commissioning and Testing
NOTE: Isolate electrical supply to the boiler and turn off the gas supply after removing controls cover
and before commencing any servicing or component exchange procedure.
11.1 Igniter and Flame Probe Assembly
Both the Spark Igniter and flame probe are secured on the same Bracket.
To remove assembly disconnect
the plug/socket on the supply lead and remove the screw securing the igniter to the burner front panel. Generally
remove any loose sooty deposits and clean as required.

Clean the burner with clean water or compressed
air, damaged burners should be replaced.

Check the condition of the non-return valve.
Inspection of the fan impellor can normally be
checked at this point.

Heat exchangers do not normally require cleaning,
but if deposits have accumulated compressed air
or water can be used to wash them through (the
secondary heat exchanger may need removing if
this is done as deposits may get trapped here.

Remove the condensate trap and clean out any
deposits which may be present. One re-fitting, fill
the trap with water to ensure flue gases do not
escape.

Re-assemble the boiler in reverse order.
Hamworthy recommends replacement of ALL
gaskets and seals disturbed and are available in a
service kit from Hamworthy, part number
563605569.

Ensure when re-fitting the burner clamping ring
the correct orientation of the cut outs to avoid
damage to the flame probe and ignitor.

Once the boiler is fully re-assembled, check all
gas connections are tight and check for leakage.

Switch on electrical supply and re-light the boiler.

Take combusting readings to required levels (see
Combustion Checks section of this manual for
levels).

Check flame probe signal is within required limits
(see flame signal assessment section of this
manual for limits.

Re-fit the casing panels.