Feed Water Characteristiques; Filling The System - Bio Bronpi CARLOTA-MF Instructions D'installation, D'utilisation Et D'entretien

• CLOSED EXPANSION VESSEL
The boiler or thermo-stove is provided with an 8 l. closed expansion vessel, pre-charged at 1.5 bars.
The maximum working pressure of the vessel is lower than the calibrated pressure of the safety valve. The fitter must anticipate the capacity
of the expansion vessel by analysing the total capacity of the installation and placing another additional vessel if necessary.
The closed expansion vessels must conform to the provisions in terms of design, fabrication, conformity assessment and use for pressure
equipments.
In case of multiple heating generators (boilers that use other fuels or wood-burning thermo-fireplaces) that work in the same installation or the
same secondary circuit, it is compulsory to connect each generator with an expansion vessel, completely scaled for the total volume of water
contained in the same installation and in the same independent circuit.
• CONTROLS DURING THE FIRST START-UP
Before the connection of the boiler or thermo-stove make:
a. A careful cleaning of all installation pipes to remove any residues that may damage the operation of some components of the
installation (pumps, valves, etc.)
b. A control to check the correct draught of the smoke exit, the absence of strangulations and make sure that there are not discharges
from other equipments in the smoke exit duct.
c. The correct purged of the installation.
•

FEED WATER CHARACTERISTIQUES

The water physical-chemical characteristics are very important for the proper operation and the durability of the boiler or thermo-stove.
Among the consequences caused by the low quality of the feed water, the most frequent consequence is the incrustation in the thermal
exchange surfaces.
It is also known that calcareous incrustations reduce the thermal exchange, even with a few millimetres, causing that some localised heat
spots are harmful. It is strongly recommended to do a water treatment in the following cases:
a. The maximum water hardness must not exceed 60 mg/l. In other case it is responsibility of the fitter the placement of osmosis
equipments.
b. Very large installations.
c. Consecutive fillings caused by maintenance works of the installation or produced by loss.
For the treatment of the feed water of the thermal installations it is recommended to ask for an authorised fitter.
•

FILLING THE SYSTEM

When the hydraulic connections are finished you can connect the system.
Open all the air vent valves of radiators, boiler or thermo-stove and installation.
WARNING!! The boiler or thermo-stove is provided with an automatic air vent valve. Make sure that all the air vent devices
are placed in the highest position of the installation because it might not be enough. Do not forget to purge the circulating
pump.
Open the fill tap gradually making sure that all the air vent valves work normally. Control the installation is under pressure by using a gauge.
Pressure must be between 1.1 and 1.2 bars with an installation provided with a closed vessel. Close the fill tap and purge again the air on the
boiler through the air vent valve.
• HYDRAULIC SCHEMES
Now we show you a series of representative schemes with different hydraulic connections. These schemas do not preclude the obligation
and / or necessity by the fitter to install different components not showed (anti-electrolytic cuffs, expansion vessels, circulation pumps, back
end protection valves (thermal shock valves), water treatment systems, air vent valves, mixing valves, stopcocks ...) that makes more reliable,
durable and comfortable the installation or the boiler. Bronpi Calefacción only guarantee an optimal work of the boiler when the installation is
made with an accumulation tank (buffer tank), and only the fitter is responsible for the use or non-use of this.
INSTALLATION, OPERATING AND SERVICING INSTRUCTIONS 39 THERMO-STOVES AND BOILERS WITH AUTOMATIC CLEANING