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 lower controls door.
Draw the attention of the boiler owner or his representative to
the Lighting and Operating Instruction Label. 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 these Installation and Servicing Instructions, User’s
Instructions and Log book to the customer and request him
to keep them in a safe place for ready reference. For IE, it is
necessary to complete a “Declaration of Conformity” to indicate
compliance to the appropriate standard.
Make the following checks for correct operation.
1. The correct operation of ANY secondary system controls
should be proved. Operate each control separately and
check that the main burner or circulating pump, as the case
may be, responds.
2. Water circulation system;
a. With the system HOT examine all water connections for
soundness.
b. With the system still HOT, turn off the gas, water and
electricity supplies to the boiler and drain down to
complete the ushing process.
c. Rell and vent the system, clear all air locks and again
check for water soundness.
d. Balance the system.
3. Check the condensate drain for leaks and check it is
discharging correctly.
4. Finally set the controls to the User’s requirements.
Note. If an optional programmer kit is tted then refer to the
instructions supplied with the kit.
53
GENERAL CHECKS
54
HANDING OVER
IMPORTANT. Point out to the owner that the boiler must have
regular maintenance and cleaning, at least annually, in order
to ensure reliable and efcient operation. Regular attention
will also prolong the life of the boiler and should preferably be
performed at the end of the heating season.
After servicing, complete the service section of the log book
and return to the owner or their representative.
Recommend that a contract for this work should be made with
the regional gas authority or a Gas Safe Registered Engineer.
In IE servicing work must be carried out by a competent
person.
INSTALLATION
55
SAFETY
It is the law that any service work must be carried out by a Gas
Safe Registered Engineer. In IE service work must be carried
out by a competent person.
WARNING. Always turn off the gas supply at the gas
service cock, and switch off and disconnect the electricity
supply to the appliance and any external controls before
servicing or replacing components.
NOTE.
When the burner switch is in the off position the boiler control
module remains live.
IMPORTANT.
After completing the servicing or replacement of components
always:
• Test for gas soundness.
• Check the water system is correctly lled and free of air. Air
in the boiler could cause damage to the heat exchanger. For
this reason the automatic air vent in the left top side must
never be shut off.
• Check the jacket front panel is correctly tted, ensuring that a
good seal is made. Secure the controls fascia in place.
• With the system hot examine all water connections for
soundness.
• Check the gas rate and measure the combustion CO/
CO
2
content. The CO/CO
2
ratio of the ue gas should not
be greater than 0.004 ratio and the CO
2
should match the
values given in Frame 56.
• Carry out functional checks as appropriate.
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