ENGLISHHYDRAULIC SYSTEMCertain concepts referring to the Italian UNI 10412-2 (2009) Standard are described in this chapter.As previously described, when installing, all national, regional, provincial and town council Standards in force provided by thecountry in which the appliance has been installed must be complied with.During installation of the stove it is MANDATORY to adjust the system with a manometer in order to display the water pressure.INSTALLATION AND SAFETY DEVICESThe installation, relative system connections, commissioning and inspection of correct functioning must be carried out perfectly,in total compliance with Standards in force, both national, regional and municipal, as well as these instructions.For Italy, installation must be carried out by professionally authorised staff (Ministerial Decree dated 22.01.08 n°37).The manufacturer declines all responsibility for damages to objects and/or persons caused by the system.TYPE OF SYSTEMThere are two different types of system: Open vessel plant and closed vessel plant.The product has been designed and realised to work with closed vessel systems.J CHECK THAT THE PRE-FILLING PRESSURE OF THE EXPANSION VESSEL IS 1.5 BAR.TABLE OF DEVICES FOR CLOSED VESSEL SYSTEM, PRESENT AND NOT PRESENT IN THE PRODUCTSafety valve RPump control thermostat (managed by the water probe and board program) RAcoustic alarm activation thermostat -Water temperature indicator (display) RPressure transducer with display RAcoustic alarm -Automatic circuit breater switch (managed by board program) RPressure transducer with minimum and maximum pressure switch alarm RWater overheating automatic circuit breaker (blocking thermostat) RCirculation system (pump) RExpansion system R44
