Ideal Boilers Optia HE 9 Installation And Servicing Instructions

Optia HE - Installation & Servicing 33SERVICINGcla78512 casingretainingscrewsTo ensure the continued safe and efficient operation of theappliance it is recommended that it is checked at regularintervals and serviced as necessary.The frequency of servicing will depend upon the installationcondition and usage, but should be carried out at leastannually. It is the law that any service work must be carried outby CORGI registered installer. In IE service work must becarried out by a Competent Person.1. Light the boiler and carry out a pre-service check, notingany operational faults. Operate the boiler for at least 20minutes. Check the gas consumption.2. Connect a suitable gas analyser to the sampling point onthe top RHS of the back panel. For correct boiler operationthe CO/CO2 content of the flue gas should not be greaterthan 0.004 ratio. If this is the case and the gas input is atleast 90% of the nominal, then no further action need betaken. If not, proceed to paragraph 3.3. Clean the main burner. Refer to Frame 56.4. Clean the heat exchanger. Refer to Frame 55.5. Clean the main and pilot injectors. Refer to Frame 56.6 Clean the recuperator. Refer to Frame 57.1 324cla92144. Remove the 4 screws retaining the air box/pilot assemblyto the vertical manifold and carefully remove the assembly.5. On re-fitting the air box assembly, remove the old gasketfrom the manifold and ensure the new gasket is locatedcorrectly. Check that the joint is made gas tight. IdealBoilers recommend the air box fixing screws be replacedwith a torque of 4.0Nm in the number order shown on thediagram below and be repeated to ensure even clamping.1. Remove the screw retaining the front burner supportstrap to the combustion chamber. Remove the M5 pozisituated at the LH bottom rear of the burner and pull theburner downwards to disengage the retention tab.Remove the burner to a safe place for inspection andcleaning.2. Remove the 2 control box fixing screws. Swing the boxdownwards to disengage.3. Pull the HT lead connection off the printed circuit boardand pull the lead upwards through the bottom panelgrommet.1. Open the controls pod door and release the 2 captive screws atthe bottom of the casing, then unhook the casing front panelfrom the back panel and remove. Retain the front panel in asafe place.2. Isolate the gas supply at the service cock fitted to the boiler.53 BOILER FRONT PANEL REMOVAL52 SERVICING SCHEDULE7. Remove and clean the siphon. Refer to Frame 58 and thencheck the drain for blockage.8. Remove any debris from inside the base of the casing.9. Check that the flue terminal is unobstructed and that theflue system is sealed correctly.10. If the appliance has been installed in a compartment, checkthat the ventilation areas are clear.The servicing procedures are covered more fully in Frames 54to 60 and must be carried out in sequence.WARNING .Disconnect the electrical supply and turn off gas supply.IMPORTANT. After completing the servicing or exchange ofcomponents always test for gas soundness and carry outfunctional checks as appropriate. Refer to Frame 48, item 18for gas adjustment sealing.When work is complete the casing MUST be correctly refitted,ensuring that a good seal is made.The boiler must NOT be operated if the casing is not fitted.11. Complete the service section of the BenchmarkCommissioning Checklist.54 BURNER AND AIR BOX REMOVALSERVICING