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TermoSovrana DSA
delivery. This will be replaced with as much cold water coming from the open expansion tank loading pipe of
open tank by draining away the excessive heat.
SAFETY VALVE FROM 1,5bar: maximum operation pressure allowed for the system is 1,5 bar (equal to 15m
5.
of the water column). Higher pressures can cause deformation and breakage of the boiler body.
SAFETY DEVICES envisioned by Regulations in vigour.
6.
CIRCULATION PUMP : It would be better to install it on the return in order to avoid that it could disconnect itself
7.
at very high water temperatures but checking that it does not drive water in the open expansion tank otherwise it
should cause a continuous water oxygenation with consequent, fast corrosion of boiler body. It must be not to
avoid a forced circulation in the open expansion tank. Furthermore it must be electrically connected to a
thermostat or a electronic control unit that can be purchased with the thermo-fireplace as OPTIONAL part.
8. AUTOMATIC THERMOSTATIC MIXING VALVE – (see chapter 3.3)
IMPORTANT: temperature safety sensors must be in place on the machine at a distance no greater than 30 cm from
the flow connection of the thermo-product.
Whenever the thermo products lack a device, those missing can be installed on the thermo product flow pipe, within a
distance no greater than 1m from the thermo product.
ATTENTION: For no reason must the fire be ignited before the system has been completely filled with water;
doing this would lead to serious damage of the entire structure. The system must be filled by means of the
loading pipe directly from the open vessel tank in a way to prevent an excessive water pressure network
deforming the body of the thermoheating stove.
The system must be kept constantly full of water even during the periods when the use of the thermoheating stove is
not requested. During the winter, inactivity must be faced with the addition of antifreeze.
3.2.
CLOSED expansion VESSEL system
It is COMPULSORY that the CLOSED expansion VESSEL system is provided with:
1. A 3 bar SAFETY VALVE:
water column). Higher pressures can cause deformation and breakage of the boiler body
2. AUTOMATIC THERMOSTATIC MIXING VALVE – (see chapter 3.3)
3. HEAT DISCHARGE VALVE or HEAT SAFETY DISCHARGE (positive safety, therefore, this continues
discharge, should the valve be damaged)
4. CLOSED EXPANSION VESSEL
5. PUMP CONTROL THERMOSTAT
6. NOISE ALARM ACTIVATION THERMOSTAT
7. NOISE ALARM
8. TEMPERATURE INDICATOR
9. PRESSURE INDICATOR
10. PUMP SYSTEM
IMPORTANT: temperature safety sensors must be in place on the machine at a distance no greater than 30 cm from
the flow connection of the thermo-product.
Whenever the thermo products lack a device, those missing can be installed on the thermo product flow pipe, within a
distance no greater than 1m from the thermo product.
IT IS MANDATORY that the thermo products for domestic heating inserted in CLOSED VESSEL heating systems,
must be internally equipped, with a cooling circuit, prepared by the unit manufacturer, which is activated by a thermal
safety valve (see chapter 3.4) which does not require auxiliary power and can guarantee that the standard set
temperature limit is not exceeded. Connection between the power supply unit and the valve must be free from
interceptions. Cooling circuit upstream pressure must be at least 1,5 bar.
3.3.
AUTOMATIC THERMOSTATIC MIXER VALVE (OPTIONAL)
The automatic thermostatic mixer valve finds applications in solid fuel heat generators as it prevents cold water return
in the exchanger.
Routes 1 Picture 2 and 3 are always open and, along with the pump installed on the return (R), the guarantee water
circulation inside the biomass boiler exchanger (CB).
7094211 – EN
maximum operation pressure allowed for the system is 3 bar (equal to 30m of the
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