Ideal Boilers Istor HE260 Installation And Servicing Manual

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Ideal Boilers Istor HE260 Installation And Servicing Manual Manual pdf 37 page image

37istor system store - Installation and ServicingSERVICING49 SAMPLING POINT 50 BOILER FRONT PANEL REMOVAL1. Remove the 2 securing screws.2. Pull the top panel forward at the top and lift to disengageit from the locating pins.3. Pull the bottom panel forward off the locating pins.48 SERVICING SCHEDULETo ensure the continued safe and efficient operation of theappliance it is recommended that it is checked at regularintervals and serviced as necessary. The frequency ofservicing will depend upon the installation condition andusage but should be carried out at least annually.It is the law that any service work must be carried out by aregistered CORGI installer. IN IE service work must becarried out by a competent person.BOILER MODULE1. Remove the upper and lower front panels. Refer to Frame50.2. Light the boiler and carry out a pre-service check, notingany operational faults.3. Relight the boiler and operate for at least 10 minutes.Check the gas consumption.4. Connect a suitable gas analyser to the sampling point onthe top of the boiler (refer to Frame 49) or into the flueterminal if access is possible (optional test).For correct boiler operation, the CO/CO 2 content of the fluegas should not be greater than 0.004 ratio.If this is the case, and the gas input is at least 90% of thenominal, then no further action need be taken. If not,proceed to Step 5 but see note above.5. Clean the main burner.6. Clean the heat engine and ëSí trap.Note. This must be done with the heat engine and depositsin a dry condition. Refer to Frame 58.7. Check the main injector for blockage or damage.8. Wherever possible remove and clean the condensate trap(refer to Frame ) and check the drain for blockage.9. Check that the flue terminal is unobstructed and that theflue system is sealed correctly.10. If for any reason, the condensate trap has been removed.Ensure that the trap is re-filled with water before re-assembly.11. Complete the service section in the BenchmarkCommissioning Checklist.TANK MODULENote. The unvented DHW cylinder must be inspected andserviced annually.12. Release system pressure via relief valve and checkexpansion vessel pre-charge pressure is between 1.5 to2.5 bar. Adjust if required and top up system to samepressure.13. With no water pressure on the system, check and ifnecessary adjust the secondary expansion vesselpressure to approximately 2 bar.Note. Vessel pressure can not be accurately set with waterpressure in system.14. Partially open vent on top of heat exchanger and releaseany trapped air. Partially unscrew cap on the air vent (ontop of diverter valve) and release air.15. Remove and clean the DHW inlet filter. Refer Frame 57.16. Check that the discharge from both the expansion valvesand the temperature and pressure relief valve on the tankgo to waste. The pipe is clear and both valves close.17. Check all joints for leaksGENERALThe servicing procedures are covered more fully in Frames49 to 59 and MUST be carried out in sequence.Note.In order to carry out either servicing or replacement ofcomponents the boiler front panels, sealing panel and faciapanel must be removed.Do NOT OPERATE the boiler if the sealing panel is not fittedWARNING. Always turn OFF the gas supply at the gas servicecock, and switch OFF and disconnect the electricity supply tothe appliance before servicing.IMPORTANT.After completing the servicing or exchange of componentsalways test for gas soundness and carry out functional checksin 3 and 4 above.When work is complete the sealing panel MUST be correctlyrefitted, ensuring that a good seal is made.SERVICING