18INSTALLATIONThe installation of the boiler must only be carried out by Qualified Personnel, following the indications of theManufacturer and in compliance with all the laws and regulations which control the subject. It is particularlyrecommended that the regulations in the matter of safety are observed and those that regulate theconstruction and location of the flue pipes.HYDRAULIC CONNECTIONCarry out the hydraulic connection of the appliance complying with the directions placed close to each con-nection and the ones related in figure 1 of this booklet. The connection must be made so that the pipes are freefrom tension and it is compulsory to assemble a safety valve on the heating circuit, at a point as near aspossible to the boiler, without there being, between said boiler and valve, any obstruction or interceptingdevice.The appliance is not equipped with the expansion tank; itsconnection therefore must be carried out by the installer. Forsuch purpose we remind that the system pressure, when cold,must be between 0.5 and 1.5 bars inclusive.CONNECTION TO THE FLUE PIPEIt is advised to connect the boiler to a sound flue pipe, builtin compliance with the current regulations. The conduit be-tween the boiler and the flue must be made from a materialsuitable for this purpose or else resistant to temperature andcorrosion. At the junction points it is advisable to cure thetightness and thermally insulate all the conduit between boilerand chimney in order to avoid the formation of condensa-tion.WIRING DIAGRAMSCarry out the connection of the circulating pump, the burnerand the possible room thermostat by observing the direc-tions in the diagrams attached (Fig.s 6 & 7). It is recom-mended to interpose a bipolar switch between the powersupply and the appliance, with contact openings of at least3 mm, provided with fuses of 5 A max.Use the cable grips supplied for all electrical connections.In addition it is advisable to connect the appliance to asound earthing system.Lamborghini Calor s.p.a, declines any responsibility fordamage to persons or things caused by the non-connec-tion of the appliance to a sound earthing system.N.B.: The burner cable (Pos. 1 Fig. 5) can be positioned,according to the necessity of the user, to the right or the left.Fig. 4Fig. 5