Servicing Schedule - IDEAL HE15 Installation And Servicing

43 sERVICINg sChEDULE

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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
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.
pLEAsE NOTE: During routine servicing and after any
maintenance or change of part of the combustion circuit, the
following must be checked:
• The integrity of the flue system and the flue seals.
• The integrity of the boiler combustion circuit and the relevant seals.
• The operational (working) gas inlet pressure at maximum
rate. Refer to Frame 40.
• The gas rate. Refer to Frame 41.
• The combustion performance. Refer to step 3.
1. Light the boiler and carry out a pre-service check, noting any
operational faults.
2. Check the gas consumption.
3. Connect a suitable gas analyser to the sampling point on top
of the boiler or into the flue terminal, if access is possible.
Refer to Frame 46.
For correct boiler operation the CO/CO2 ratio of the flue gas
should not be greater than 0.004 ratio. If the combustion
reading is greater than the acceptable value AND the
integrity of the complete flue system and combustion circuit
seals have been verified and the inlet gas press (and gas
rate) have been verified, then contact Ideal.
Competence to carry out the check of Combustion
performance
PLEASE NOTE. BS6798: 2009 Specification for Installation and
maintenance of Gas Fired boiler of rated input not exceeding 70
kW net advises that:
• The person carrying out a combustion measurement should
have been assessed as competent in the use of a flue gas
analyser and the interpretation of the results;
• The flue gas analyser used should be one meeting the
requirements of BS7927 or BS-EN50379-3 and be calibrated
in accordance with the analyser manufacturers' requirements.
• Competence can be demonstrated by satisfactory
completion of the CPA1 ACS assessment, which covers
the use of electronic portable combustion gas analysers in
accordance with BS 7967, parts 1 to 4.
44 BOILER FRONT pANEL REMOVAL
1. Remove the two screws retaining the lower
front panel and remove the panel.
2. Remove the two screws retaining the upper
front panel.
3. Lift the upper front panel and remove.
32
Servicing
4. Clean the main burner.
5. Clean the heat exchanger and 'S' trap.
6. Check the condition of the combustion chamber insulation.
Any cracked or damaged pieces should be replaced (HE15,
HE18 and HE24 only).
Ionisation probes are a servicable component and require
inspecting annually and replacing if distorted.
7. Check the main injector for blockage or damage.
8. Wherever possible, remove and clean the condensate 'S' trap
(refer to Frame 48) and check the drain for blockage.
9. Check that the flue terminal is unobstructed and that the flue
system is sealed correctly.
10. If fitted, clean the condensate pump.
The servicing procedures are covered more fully in Frames
46 to 50 and MUST be carried out in sequence.
Note. In order to carry out either servicing or replacement of
components the boiler front panels, and sealing panel must be
removed. Refer to Frames 44 and 45.
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.
IMpORTANT.
11. After completing the servicing or exchange of components
always test for gas tightness and carry out functional checks
as in paragraphs 2 and 3.
12. 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.
13. Complete the service section of the Benchmark Commissioning
Checklist.
CO/CO
2
sampling
point
3
2
1
mexico HE -
Installation & Servicing