Ideal Boilers Logic System 15 Installation And Servicing

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58Ideal Logic System - Installation and ServicingFLOWCHART FOR CO LEVEL AND COMBUSTION RATIOCHECK ON COMMISSIONING A CONDENSING BOILERImportant Preliminary Information on ChecksThe air gas ratio valve is factory-set and must not be adjusted DURING COMMISSIONING.If the boiler requires conversion to operate with a different gas family (e.g. conversion from natural gas to LPG) sepa-rate guidance is provided with the conversion kit supplied and this must be followed.PRIOR TO CO LEVEL AND COMBUSTION RATIO CHECKThe installation instructions must have been followed, gas type verified and gas supply pressure / gas rate checked asrequired prior to commissioning.As part of the installation process, ESPECIALLY WHERE A FLUE HAS BEEN FITTED BY PERSONS OTHER THANTHE BOILER INSTALLER, visually check the integrity of the whole flue system to confirm that all components arecorrectly assembled, fixed and supported. Check that maximum flue lengths have not been exceeded and all guidancehas been followed (e.g. Gas Safe Register Technical Bulletin (TB) 008 where chimney/flues are in voids).The ECGA should be of the correct type, as specified by BS 7967.Prior to its use, the ECGA should have been maintained and calibrated as specified by the manufacturer. The installermust have the relevant competence for use of the analyser.Check and zero the analyser IN FRESH AIR in accordance with the analyser manufacturer’s instructions.KEY:CO = carbon monoxideCO 2 = carbon dioxideO2 = oxygenCombustion Ratio = The CO reading measured in ppm divided by the CO 2 reading first converted to ppmppm = parts per millionGS(I&U)R = Gas Safety (Installation and Use) Regulations*setting to Minimum Rate:1. Turn the CH temperature control knob into the 10 O’clock position.2. Create a heat demand by ensuring that the system controls are requesting heat and the boilerMode Knob is in the On Position.3. Within an overall time of 3 seconds, turn the CH temperature control knob fully clockwise, back to10 O’clock and then fully clockwise again.4. “S” will be shown on the display and the boiler output will be reduced to minimum.5. The boiler will remain at minimum rate for 5 minutes before reverting to normal operation.