Installation Manual - Unical Lattner Condensing Hot Water Boilers

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Instructions for the installer3.15 - FLUE INSTALLATIONThe flue system must be installed in accordance with thelocal and national Standards (refer to UNI 13384-1-2)The flue outlet must be made only with material resistantto products of combustion, pertaining to class W1according to UNI EN 1443, and as a rule made in stainlesssteel or plastic material.We recommend using only original UNICAL flueoutlet systems.Damages caused by installation errors and fornon-observance of the instructions given bythe same manufacturer will invalidate all thesupplier’s contractual or extra contractualresponsibilities.FLUE OUTLETS Ø 100 mm Type B23The maximum total horizontal run permittedby the Ø 100mm outlet and intake pipe is 30 minclusive of 1 wide radius bend and 1 flue outletterminal.L min = 1 m - L max = 30 m0026251400361494The boiler has been approved for the following flueconfigurations:00361495Type B23Boiler designed to be connected to an open flue which willterminate vertically through the roof. The combustion air isintaken directly from the room where the boiler is installed.WARNING: for this type of connection the room must complywith the same installation regulations valid for open chimneyboilers.The chimney must comply to the current regulations.Preliminaryoperations:Min. 300 mm0036149300361495- Fit the flue outlet pipeØ 100mm, suppliedin the packaging, asindicated in thefigure.24
Instructions for the installer3.16 - ELECTRICAL CONNECTIONSRegulations in forceThe gas and water feeding pipes and the CH system pipescannot be used as ground plates.Ensure that the above safety electrical requirements subsist;in case of doubt, ask for a professionally qualified technicianto check the appliance’s electrical system.UNICAL refuses responsibility for any damages arising fromfailure to earth the boiler correctly.It is necessary that a qualified technician verifies that theelectrical system is adequate to the appliance’s maximumabsorbed power, indicated on the data plate, verifying inparticular that the section of the system’s cables is suitableto the appliance’s maximum absorbed power.For the appliance’s general electrical supply the use ofadaptors, multiple sockets and/or extension cords is strictlyforbidden.The use of any power supplied equipment implies theobservance of several fundamental rules, such as:- Do not touch the appliance with any wet part of your bodyand/or barefooted;- Do not pull the supply cables- Do not expose the boiler to sunlight, rain, etc., unless it isexplicitly foreseen;- Do not permit children or inexpert people to use theappliance.Mains electrical supply connection 230VThe boiler is provided complete with a mains supply cable1,5 m long and with a cross section area of 3x0,75 mm2.The electric connections of the boiler are shown in the sectionnamed “WIRING DIAGRAMS” (paragraph 3.17 page 26)A mains supply of 230 V – 50 Hz is required. The wiring to theboiler must be in accordance with the current CEI regulations.WARNING!We remind you that upstream of the electricalconnection, it will be necessary to foresee aservice relay (NOT SUPPLIED) which, whenthe electrical safety devices (ISPESL)intervene, shuts down the electrical supplyto the on-off fuel valve fitted on the gas supplycircuit, but not to the boiler so as toguarantee the running of the pump and permitthe boiler to cool down.DANGER!The electrical connections must be carriedout only by a qualified engineer.Before carrying out the connections or anyother operation on the electrical parts,always switch off and disconnect theelectricity supply and ensure yourself that itcannot be accidentally turned on.It is necessary to fit a double pole switch on the electricalsupply line, having a 3 mm contact separation in both poles,in an easy accessible position in order to make quick andsafe the servicing operations.25
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Installation Manual - Unical Lattner Condensing Hot Water Boilers

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