Installation Manual - Unical Lattner Condensing Hot Water Boilers

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Instructions for the installer3.11 - PRESSURE RELIEF VALVE DRAINPIPEA pressure relief valve must be fitted on the flowpipe, within 0,5 m from the boiler. It must bedimensioned for the capacity of the boiler andmust comply to the regulations in force,WARNING!Please remember that it is forbidden tointerpose, between the boiler and thepressure relief valve, any type of cutting-offdevice. Moreover it is recommended to usecutting-off valves which do not exceed themaximum allowable operating pressure.WARNING!In correspondence to the heating pressurerelief valve foresee the installation of adischarge pipe with a funnel and a siphonwhich lead to an adequate drainage. Thedrainage has to be controllable by sight.If this precaution is not made, an eventualintervention of the pressure relief valve couldcause injury to persons, animals or damageto property. The manufacturer shall not beheld liable for any injury and/or damage.3.12 - WORKING PRESSUREThe boiler’s maximum allowable working pressure is set at3 bar; whilst the minimum pressure is pre-charged to 0,5bar.WARNING!The boiler does not have any specific protectivedevice against water loss, as this function iscarried out promptly by the overheatthermostat.However, on the boiler’s electronic board, thepossibility of connection to a minimumpressure switch is foreseen..20
Instructions for the installer3.11 - MIXING HEADER FILTERUNICAL suggests the installation of a Y filteron the return pipe so that it can be cleaned ifnecessary.This filter will protect the boiler from the heatingsystem dirt.3.12 - MIXING HEADERIn order to ensure correct boiler operation it is necessary touse a mixing header which guarantees:- the separation and collection of circuit dirt- optimal air venting- hydraulic de-coupling of the two hydraulic circulationcircuits- balancing of the circuits21
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Page 5 and 6: 1.6 DATA BADGECE Marking- The CE ma
Page 7 and 8: 2TECHNICAL FEATURESAND DIMENSIONSTe
Page 9 and 10: Technical features and dimensionsDI
Page 11 and 12: Technical features and dimensions2.
Page 13 and 14: 2.5 - PERFORMANCE DATA ACCORDINGTO
Page 15 and 16: Instructions for the installer3.2 -
Page 17 and 18: 3.5 - INSTALLATION ON EXISTINGHEATI
Page 19: Instructions for the installer3.10
Page 23 and 24: Instructions for the installer3.14
Page 27 and 28: Connection of the additional safety
Page 33 and 34: Instructions for the installerINSTA
Page 37 and 38: 3.20 - EXAMPLES OF CONNECTION WITH
Page 45 and 46: 3.24 - PROGRAMMING OF THE OPERATING
Page 47 and 48: Servicing schedule4SERVICINGSCHEDUL
Page 49 and 50: Servicing scheduleService operation
Page 51 and 52: Fault findingCode:Description: Modu
Page 53: DECLARATION OF CONFORMITYLaAG s.p.a

Installation Manual - Unical Lattner Condensing Hot Water Boilers

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