Concord CX -
Installation
21
Note. Casing not shown for clarity
Pull off the igniter lead at the igniter. The centre burner may
now be removed by pushing it back to clear the injector and
lifting it out. Take care not to damage the thermocouple and
pilot gas pipe whilst the burner is out of the appliance.
Undo the screws securing the clean out cover and lift it off to
give access to the flue ways. Lift out the flue baffles.
Remove all loose deposits from the heat exchanger,
especially from between the fins, using the brush provided,
and remove all debris from the combustion chamber floor.
Examine the burner assembly. Clean the burner bars by
brushing them down with a stiff bristle (not wire) brush.
Check each bar carefully to ensure that all flame ports are
clear, that there are no cracks and that all surfaces are free
from accumulated deposits.
If available, an industrial vacuum cleaner may be useful to
assist in this work. When cleaning the burner bars, take care
to avoid damage from rough handling to the pilot pipe and
thermocouple lead.
Inspect the pilot burner, injector, thermocouple and ignition
electrode.
Ensure that they are clean and in good condition.
In particular, check that:
1.
The pilot burner is firmly secured.
2.
The pilot shield is clean and correctly positioned.
3.
The ignition electrode and lead are clean, undamaged,
secure and correctly dimensioned. Refer to diagram in
Frame 28.
4.
The thermocouple tip is NOT burned or cracked.
5.
The thermocouple terminals at the gas valve are clean
and secure.
SERVICING
SER
VICING
27 SERVICING
Caradon Plumbing Limited
does not accept any liability
resulting from the use of unauthorised parts or the repair
and servicing of appliances not carried out in accordance
with the Company’s recommendations and specifications.
A comprehensive service should be carried out at least
once a year. The User is advised to make a contract with
the local Gas Region or a CORGI registered heating
installer.
WARNING.
ALWAYS turn
OFF
the gas supply at the gas
cock and switch
OFF
and disconnect the electricity supply
to the appliance BEFORE SERVICING OR REPLACING
ANY COMPONENTS.
Pull and lift off the lower front panel and top
panel from the boiler casing.
Unscrew the extended nuts at the top of the NOx
duct behind the control box and lift the NOx duct
clear of the burners as illustrated below.
Undo the 4 wing nuts securing the burner front
plate. Pull the front plate forwards, at the top,
and lift it out - taking care not to damage the
insulation.
The left and right hand burners may be lifted out
after they have been pushed back to clear the
injector.
To remove the centre burner the thermocouple
and pilot gas pipe connections at the gas valve
must be removed.
CLEANING THE BOILER. Refer to Frame 5
Содержание Concord CX40
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