Vaillant ecoMAX 665 Installation And Maintenance Manual

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Vaillant ecoMAX 665 Installation And Maintenance Manual Manual pdf 12 page image

12 Installation and maintenance manual ecoMAX 6654 InstallationWhen installing, please observe the following points inparticular:- the installion of a pump in the appliance circuit- guarantee minimum circulation between appliance andswitch- mount the siphon cartridgeWhen recharging:- install the storage charging pump- install gravity brake in the heating supply and inthe storage charging circuit if the cylinder is heateddirectly by the appliance- guarantee minimum circulation for rechargingJJA BFig. 4.1: Appliance circuit (A) and heating circuit (B)Caution!The ecoMAX 665 may only be put into opera-tion when a sufficiently dimensioned hydraulicswitch has been installed between appliance cir-cuit and heating circuit.4.1 Preparing the installationSafety equipment for an emergency• From the safety valve‘s blow-out line, a drain pipe withintake guide and siphon must be led to a suitable out-let. The outlet must be visible!• If plastic pipes are used in the heating system, a suit-able maximum thermostat must be mounted on theheating supply (e.g. Vaillant feed thermostat 009642). This is necessary in order to protect the heatingsystem from temperature-related damage in the eventof a malfunction.• When using plastic pipes that are not diffusion tightin the heating system, a system separation betweenthe heater and system by means of an external heatexchanger must be performed in order to avoid corro-sion occurring in the heater circuit or in the boiler.4.2 Technical instructions for the heating systemCaution!The following system diagrams are schematicdiagrams. They do not replace the full profes-sional diagrams!The system diagrams do not contain the shut-off devices and safety devices necessary forcorrect mounting.Observe the applicable standards and guidelines.4.2.1 Hydraulic decoupling with heating pump locatedon the appliance sideϑϑ17a2133323342230V~33 345Fig. 4.2: radiator heating and floor heating, hydraulic separa-tion, appliance-internal pump1 ecoMAX 6652 heating pump17a supply temperature sensor45 hydraulic switchA pump dimensioning doesn‘t have to be carried out.The appliance pump is set up at the factory.The pump output doesn‘t have to be set.Selection of the hydraulic switchA suitable WH model hydraulic switch (accessories) can beselected with the aid of table 4.1.A sufficiently large water volume (minimum circulatingwater volume) is constantly supplied through the boilervia the hydraulic switch in conjunction with the Vaillantsystem pump (item no. 178 728) built into the boiler.heating system output heating system spread10 K 15 K 20 KecoMAX 665 WH 160 WH 95 WH 95double cascade WH 280 WH 160 WH 95triple cascade WH 280 WH 280 WH 160Table 4.1: Selection of the hydraulic switch, WH model4 Installation