9© by NECTA VENDING SOLUTIONS SpA 01-2003 197 00The machine installation and the following mainte-nance operations should be carried out by qualifiedpersonnel only, who are trained in the correct use ofthe machine and are aware of the specific risks ofsuch operations.The machine must be installed in a dry room withtemperature between 2°C and 32°C.To energize the system with the open door, simply insertthe special key into the slot (see Fig. 6).The door can be closed only after removing the key. CONNECTING THE MACHINETO THE WATER MAINSThe machine must be connected to the drinking watermains, taking into account law provisions in force in thecountry where the machine is installed.The water pressure must be 5 to 85 N/cm 2 (0.5-8.5 bar).Run some water from the mains until it is clear and withoutimpurities.Use a hose (also available as a kit) capable of withstand-ing the water mains pressure and suitable for use withfoodstuff (min. inside diameter of 6 mm) to connect thewater supply to the union (3/4" gas) of the water inletsolenoid valve (see Fig. 8).Chapter 2INSTALLATIONIt is good practice to install the water supply tapoutside the machine in an easily accessible position.OVERFLOW DEVICEThe water inlet solenoid valve (see Fig. 8) is equipped withan overflow device which mechanically stops the waterinlet if there is a malfunction in the solenoid valve or in theboiler water level control device.To restore normal operation, proceed as follows:- drain the water contained in the overflow hose;- shut off the water supply using the tap outside themachine;- loosen the nut which secures the solenoid valvesupply hose to relieve the water mains residualpressure and then tighten again (see Fig. 8);- open the tap and switch the machine on.At installation the hydraulic circuits and the parts incontact with foodstuff should be fully sanitised toremove any bacteria which might have formed duringstorage.UNPACKING THE VENDING MACHINEAfter removing the packing, ensure that the machine isintact.If in doubt do not use the machine.No packing elements (i.e. plastic bags, polystyrenefoam, nails, etc.) should be left within the reach ofchildren, as they are potentially dangerous.Packing materials must be disposed of in authorisedcontainers and the recyclable ones must be recovered byqualified companies.Important notice!!The machine should be positioned with a maximum incli-nation of 2°.If necessary provide proper levelling by way of the adjust-able feet included (see Fig. 7).Fig. 61 - Door lock bolt2 - Door lock3 - Door switchFig. 71 - Adjustable footFig. 81 - Water inlet union (3/4" gas)2 - Water supply hose3 - Overflow hose