Modena HE 18s, 25s & 32s - Ferroli

MODENA S HECheck the operational (working) gas inlet pressureSet up the boiler to operate at maximum rate as describedin section " Test mode" pag. 21 of section 3.3.With the boiler operating in the maximum rate conditioncheck that the operational (working) gas pressureat the inlet gas pressure test point (see fig. 27) complieswith the requirements of section 4.4.Ensure that this inlet pressure can be obtained with allother gas appliances in the property working.Inlet test pointfig. 27Measure the gas rateMeasure the gas rate and check against following table:GAS RATES (NATURAL GAS)AFTER 10 MINUTES FROM COLDBOILER MODELMaximum rate Minimum ratem 3 /h ft 3 /h m 3 /h ft 3 /hMODENA 18 S HE 1.84 64.98 0.42 14.83MODENA 25 S HE 2.64 93.23 0.61 21.54MODENA 32 S HE 3.38 119.36 0.71 25.073.4 Routine servicing, maintenance & repairGeneralPLEASE NOTE: During routine servicing, and after any maintenance or change of part of the combustion circuit, werecommend that the following is 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, as described in section 4.4;• The gas rate, as described in section 4.4;• The combustion performance, as described in section 3.4 Combustion check.Competence to carry out the check of combustion performancePLEASE NOTE: BS 6798: 2009 Specification for installation and maintenance of gas-fired boilers of rated inputnot exceeding 70 kW net advises that:• The person carrying out a combustion measurement should have been assessed as competent in the use of a fluegas 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 calibratedin accordance with the analyser manufacturers’ requirements, and• Competence can be demonstrated by satisfactory completion of the CPA1 ACS assessment, which covers the useof electronic portable combustion gas analysers in accordance with BS 7967, Parts 1 to 4.22 ENcod. 3541C364 - Rev. 00 - 12/2012