25
Concord CXC -
Installation
34 HANDING OVER
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 casing door. 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.
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 installer.
Caradon Plumbing Limited do 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
Pull and lift off the lower front panel.
Remove the screw from the top of upper front panel. Pull
the panel forward and lift the bottom hooks clear of the
lower top panel.
32 TESTING
33 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 5, when
that part of the system intended to be
used for dissipation of residual heat only
is in operation.
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 23 and 24.
2. Check that the display shows "Detection Lockout".
3. Turn on the gas cock and reset by pressing [COPY].
4. Complete the casing assembly. Refer to Frame 13.
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.
31 COMBUSTION SYSTEM
SOUNDNESS CHECKS
Remove the upper front casing panel.
Check that there is no leakage of
combustion products around the fan,
secondary heat exchanger and flue
connection, using a smoke match or
smouldering taper.
If any leaks are evident, immediate steps
must be taken to rectify them.
SER
VICING
SERVICING
35 SERVICING
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