27
Concord CXi - Installation
33
TESTING
32
SPILLAGE CHECK
Check that there is no spillage of
combustion products from the boiler
draught diverter by carrying out a
spillage test, as detailed in BS.
5440:1.
Check that the main burner responds correctly to manual on/off operations of any
controls fitted in the gas control circuit. Check, in the following manner, the
operation of the flame failure safety device.
1. Extinguish the main burner by turning off the main gas inlet cock. Refer to
Frames 41 and 42.
2. Check that the display shows "Detection lockout".
3. Turn on the gas cock and reset by pressing [COPY].
4. Fit the casing front panel.
5. Important Commissioning / Operating Instructions:
Do not operate this appliance for long periods or take any combustion readings
with the casing or any part of the casing removed.
36
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 a
CORGI registered engineer.
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.
CLEANING THE BOILER
Remove the casing door panel. Lift and remove the casing
lower front panel. Undo and pull off all the plugs from the
gas valve solenoids. Turn off the gas at the gas inlet cock.
Undo the 2 unions at either side of the gas valve assembly
and remove the assembly complete.
34
ADJUSTMENT OF WATER FLOW RATE THROUGH THE BOILER
When commissioning the heating/domestic hot water system the shunt pump must be
adjusted to give the minimum flow rate given in Table 4, when that part of the system
intended to be used for dissipation of residual heat only is in operation.
SERVICING
ROUTINE OPERATION
Full instructions covering routine lighting and operation of the
boiler are given on the Lighting and Operation Instruction Label
located on the inside of the casing door.
Draw the attention of the boiler owner or his representative to
the Lighting and Operating Instruction Label on the inside of
the front panel. Give a practical demonstration of the lighting
and shutting down of the boiler.
Describe the function of the boiler and system controls and
show how they are adjusted and used.
35
HANDING OVER
SERVICING
Hand over these and the User’s Instructions to the
customer and request him to keep them in a safe place for
ready reference.
IMPORTANT. Point out to the owner that the boiler must
have regular maintenance and cleaning, at least annually, in
order to ensure reliable and efficient operation. Regular
attention will also prolong the life of the boiler and should
preferably be performed at the end of the heating season.
Recommend that a contract for this work should be made
with a CORGI registered engineer.
SERVICING
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