B)RetroinstallationsoperatetheEcogenwithaneworexistingexternalsystemwiringcentre.Thismeansthattheinstallerhastheoptiontoretainanexistingroomthermostat,
DHWthermostatandprogrammer.Anoutdoorsensorforweathercompensationcannotbeusedinthiscase.TheTHINKControllermustremainontheappliance(SeeSection
10.11).
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10.3CompleteWiringConfiguration
1.AllwiringexternaltotheappliancemustbeinaccordancewithI.E.E.BS7671requirementsforElectricalInstallations.
IMPORTANT:Beforerunningtheapplianceensureparameter5700hasbeensetaccordingtothetypeofsysteminstalled.
Seesections10.4to10.11forsystemtypesandsection11.3.kforthechangeprocedure.
*NOTE:AllFuses3.15
A
** PermanentLiveoncethe230Vsupplyisconnected
*** Ensureallsystemwiringiscorrecttowiringregulations(BS7671)andfullytestedbeforeconnectiontoavoidanydamagetotheappliance
controls.
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10.4YPlanwithDHWcylindersensor
1.TheapplianceMUSThaveapermanentLive/Neutral/Earthconnection.Thepumpmustbeconnectedtotheapplianceasshown.
2.Setparameter5700to'2'foroneheatingcircuitseesection11.3.k.
NOTE:ItisnotpossibletooperateasecondheatingcircuitwithaYPlansystem.IntelligentInstallations