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The Caleffi Biomass product series has been created specifically to be used in circuits of systems with wood solid fuel generators, operating at high temperature with water or glycol solutions as thermal medium. The materials of the components and their performance take account of the specific system needs in terms of efficiency and safety of the generators and systems.
Biomass can be in the form of a solid, liquid or gas. This line of Caleffi products has been specifically designed for wood solid biomass solid fuel. Heating takes place via a hydraulic connection to the heating system. Hand or automatically stoked. Heating takes place via air and water circulation, with a hydraulic connection to the heating system. Residential devices can be classified in three types: - Fireplace heating systems - Thermostoves - Thermocookers WOODCHIPS The generators are further divided according to their fuel stoking system: Hand stoking, typically that of log-burning generators, requires an operator to put the blocks of wood into the generator stoking compartment.
Automatic stoking refers to the last device conveying the fuel for example pellets or woodchips from the storage tank to the combustion chamber.
Open vessel. EN : Heating boilers for solid fuels, hand and automatically stoked, nominal heat output of up to kW. Closed vessel. Hand and automatically stoked. UNI : Hot water heating systems - Safety requirements. Part 2: Requirements for systems with residential solid fuels burning appliances with boiler, not exceeding a total nominal heat output of 35 kW.
Automatically stoked. Manual reset for burner switch off or alarm activation. Code tech. Certified to EN standard. Equipped with positive action. It can be used with non-pulverized solid fuel generators with open or closed vessel in accordance with current regulations. The temperature safety relief valve limits the water temperature in solid fuel generators equipped with a built-in storage or emergency exchanger for immediate cooling.
On reaching the setting temperature, the valve opens the flow of mains water through the emergency exchanger or built-in storage unit, so as to draw off the excess heat and thereby lower the temperature of the system water contained in the boiler jacket. Closed vessel systems - Thermal systems with generators stoked with non-pulverized solid fuels up to a nominal heat output of kW with partial cut-off in place of the residual power dissipation device chap.
Reference standards Its use is contemplated in the I. The valve complies with EN , it can be combined with solid fuel generators with a heat output of less than kW, used according to the system provisions of the standards EN , UNI and EN Male threaded connection. Temperature relief valve, with positive action, with automatic filling. For solid fuel generators. The device integrates in a single group a temperature relief valve with a positive safety remote sensor and a filling valve.
The discharge of water enables limiting the system water temperature, while the filling inlet enables the replacement of the discharged flow rate. The draught regulating valve, installed on the boiler with the thermostatic element immersed in the medium, automatically adjusts the flow rate of the comburent air to provide a more regular and complete combustion. Brass body. The anti-condensation valve, used in heating systems with a solid fuel generator, automatically regulates at the set value the temperature of the water returning to the generator.
Keeping the boiler at a high temperature prevents condensation of the water vapour contained in the flue gas. Condensation produces tarry deposits that, accumulating on the metal surfaces of the flue gas-system water exchanger, cause corrosion, reduce the thermal efficiency of the flue gas-system water exchanger and are a source of danger for the flues as they are flammable.
The anti-condensation valve gives the generator a longer life and ensures greater efficiency. Installation is recommended on the return to the generator in mixing mode; it is also allowed on the flow from the generator in diverter mode according to the needs of system control. On starting up the generator, the anti-condensation valve recirculates the flow water so as to bring the generator up to temperature as quickly as possible 1.
With insulation. The anti-condensation circulation unit performs the function of connecting the solid fuel generator to the distribution manifold, controlling the return temperature to the generator, to avoid condensation by means of the built-in thermostatic device. The unit also enables connecting the generator to the inertial storage or directly to the user system. Anti-condensation valve This device incorporates a thermostatic sensor to control the temperature of the water returning to the generator so as to prevent condensation.
The sensor has been specifically realised to be removed from the valve body for maintenance or replacement if necessary. Check valve This device prevents reverse circulation of the medium. The check valve is useful when the circulation unit is used on its own for a direct connection to the system or for the connection to a manifold not equipped with a hydraulic separator.
The anti-condensation recirculation and distribution unit enables the connection of the solid fuel generator to the user system direct or with inertial storage. It controls the return temperature to the generator to avoid condensation, by means of the built-in thermostatic device. The temperature gauges can be extracted from the housings and re-inserted in the same position on the back side of the unit. Anti-condensation valve This device incorporates a thermostatic sensor to control the temperature of the water returning to the solid fuel generator so as to prevent condensation.
Natural circulation valve The function of this clapet device is to ensure natural circulation of the medium in the event of pump stop due to an electric power failure. When the pump is active, the thrust of medium keeps the valve closed, forcing the water to flow through the anti-condensation thermostatic valve.
If the event of pump stop, when the water within the boiler is at high temperature, a natural circulation of the water begins, by-passing the anti-condensation valve, thus preventing the temperature in the generator from reaching dangerous high levels. On starting up the generator, the recirculation unit recirculates the flow water so as to bring the generator up to temperature as quickly as possible 1.
Code Function The connection and energy management unit preassembled in the box enables combining solid fuel generators with another type of generator, which may already be present in the heating system.
Main functional features: - connection of new solid fuel generators both boilers and residential devices, with maximum heat output of 35 kW, both with open or closed vessel with other closed vessel generators - possibility of not adding the power outputs of the two generators as described in I.
The heating circuit is managed according to need. The unit is fitted for the production of domestic hot water with a connection to a storage. Italy - automatic system management with a specific digital regulator with synoptic diagram: generators, mixed heating circuits, solar water storage, domestic water storage - built-in anti-condensation system optional for solid fuel generator - easy access to components for maintenance - practical installation thanks to the arrangement in a box.
The heating circuit and the preparation of domestic hot water with storage are managed according to need. The connection and energy management unit preassembled in the box enables combining solid fuel generators with another type of generator, which may already be present in the heating system. The unit is fitted for the production of instantaneous domestic hot water with a heat exchanger. Italy - automatic system management with a specific digital regulator with synoptic diagram: generators, mixed heating circuits, solar water storage, instantaneous production of domestic hot water - built-in anti-condensation system optional for solid fuel generator - easy access to components for maintenance - practical installation thanks to the arrangement in a box.
The heating circuit and the instantaneous preparation of domestic hot water are managed according to need. The digital regulator enables controlling and managing heating systems containing a solid fuel generator, which may be combined with another type of generator.
The regulator has the following functions: - management of the solid fuel generator combined with another type of generator. Code The regulator has 6 pre-set programs that can be adapted by the user to many system situations.
Functional status indicator LED. Display: menu display. Select knob: selection of menu, functions and parameter editing.
Please read carefully the instructions before downloading your standards. Chi siamo Normazione Associazione Catalogo. UNIstore cart You have no items in your shopping cart. PAPER Title : Hot water heating systems - Safety requirements - Part 2: Specific requirements for systems provided with residential solid fuels burning appliances and combined boiler, not exceeding a total nominal heat input of 35 kW. ICS : [ Technical Committees : [ CTI - Heating systems equipment - Heating production, heat generators with liquid, gaseous and solid fuels ].
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