SAFETY DEVICES
14
Chapter4
WATER OVERHEATING SAFETY VIA 100° C BULB
(see gure 4.3)
When the temperature of the water inside the product is in proximity of 100°C, pellet feeding is blocked.
If the bulb trips, restoration of the safety device is manual and must be performed by an authorised
technician.
The restoration of 100°C safety device is not under warranty unless the after-sales centre can show
the presence of a faulty component.
MINIMUM AND MAXIMUM PRESSURE PRESSURE SWITCH
(see gure 4.6)
A minimum and maximum pressure pressure switch is installed in series with the pellet motor electric
power supply. If the pressure in the system is below 0.6 bar, the electric power supply is blocked to the
pellet feed motor. If the pressure in the system exceeds 2.5 bar, manual rearm of the pressure switch is
triggered: restoration of the safety device is manual and must be performed by an authorised technician.
Attention: any presence of air in the system could cause the minimum or maximum pressure pressure
switch to intervene. If the minimum pressure pressure switch intervenes blocking pellet feed into the
machine, alarms may occur connected to the lack of fuel.
ATTENTION !
For regular functioning of the product an ideal system pressure of 1.1 bar is recommended (cold
system). Moreover, there must be no air in the system. Extra ame recommends the installation
of suitable air vent devices in the system. Any air venting operations from the system or
the product is not covered by the warranty.
DEVICES NOT ON THE LIST
During installation of the stove it is MANDATORY to insert a manometer into the system in order to display
the water pressure.
INSTALLATION AND SAFETY DEVICES
The installation, relative plant connections, commissioning and inspection of correct functioning must
be carried out perfectly, in total compliance with Standards in force, both national and regional, as well as
these instructions.
For Italy, installation must be carried out by professionally authorised sta (Ministerial Decree dated
22.01.08 n°37).
Extra ame S.p.A. declines all responsibility for damages to objects and/or persons caused by the
plant.
SAFETY DEVICES FOR CLOSED VESSEL PLANT
According to the UNI 10412-2 (2006) Standard in force in Italy, the closed plants must have:
Safety valve
Pump control thermostat
Acoustic alarm activation thermostat
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