Servicing Schedule - IDEAL icos system HE15 Installation And Servicing

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46 SERVICING SCHEDULE

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WARNING. Always turn OFF the gas supply at the gas service cock, and switch OFF and disconnect the electricity supply
to the appliance before servicing.
To ensure the continued safe and efficient operation of the
appliance it is recommended that it is checked at regular
intervals and serviced as necessary. The frequency of
servicing will depend upon the installation condition and
usage but should be carried out at least annually.
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 Registered Gas Installer (RGII).
1. Light the boiler and carry out a pre-service check, noting
any operational faults.
2. Clean the main burner.
3. Clean the heat exchanger and 'S' trap.
4. Check the condition of the combustion chamber insulation.
Any cracked, damaged or displaced pieces should be replaced.
Ionisation probes are a servicable component and require
inspecting annually. Replace if distorted.
5. Check the main injector for blockage or damage.
6. Wherever possible remove and clean the condensate 'S'
trap (refer to Frame 52) and check the drain for blockage.
7. Check that the flue terminal is unobstructed and that the
flue system is sealed correctly.
The servicing procedures are covered more fully in Frames
47 to 54 and MUST be carried out in sequence.
47 BOILER FRONT PANEL REMOVAL
1. Remove the 2 retaining screws from the
underside of the boiler.
2. Pull the panel forward at the bottom and
lift to disengage it from the top lugs.
38
SERVICING
Note. In order to carry out either servicing or replacement of
components the boiler front panel and sealing panel
must be removed. Refer to Frames 47 and 48.
IMPORTANT.
8. After completing the servicing or exchange of components
always test for gas tightness.
9. When work is complete the sealing panel MUST be
correctly refitted, ensuring that a good seal is made.
Do NOT OPERATE the boiler if the sealing
panel is not fitted
10. If, for any reason, the condensate trap 'S' has been
removed ensure that the trap is refilled with water before
reassembly.
11. Check the gas consumption.
12. Connect a suitable gas analyser to the sampling point on
the top of the boiler (refer to Frame 48) or into the flue
terminal if access is possible (optional test).
For correct boiler operation the CO/CO
gas should not be greater than 0.004 ratio.
13. Complete the service section in the Benchmark
Commissioning Checklist.
content of the flue
2
icos system -
Installation and Servicing