Dal Zotto JOLE IDRO Manual Del Usuario página 44

HYDRAULIC SYSTEM
Certain 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 the
country in which the appliance has been installed must be complied with.
TABLE OF DEVICES FOR CLOSED VESSEL SYSTEM, PRESENT AND NOT PRESENT IN THE PRODUCT
Safety valve
Pump control thermostat (managed by the water probe and board program)
Acoustic alarm activation thermostat
Water temperature indicator (display)
Pressure transducer with display
Acoustic alarm
Automatic circuit breater switch (managed by board program)
Pressure transducer with minimum and maximum pressure switch alarm
Water overheating automatic circuit breaker (blocking thermostat)
Circulation system (pump)
Expansion system
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 DEVICES
The 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 SYSTEM
There are two different types of system:
Š Open vessel plant and closed vessel plant.
The product has been designed and realised to work with closed vessel systems.
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CHECK THAT THE PRE-FILLING PRESSURE OF THE EXPANSION VESSEL IS 1.5 BAR.
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