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La Nordica Termocamino WF25 DSA Handleiding

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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-
replace as OPTIONAL part.
8. ANTI-CONDENSATION MIXING VALVE – (see chapter)
ATTENTION: temperature safety sensors must be in place on the machine or at a distance no greater than 30 cm from the ow
connection of the thermo-product. Whenever the thermo products lack a device, those missing can be installed on the thermo
product ow pipe, within a distance no greater than 1m from the thermo product. All those parts must no have for any reason
meditate intercept bodies that could accidentally exclude them and must be placed in rooms which are protected from frost. On
the contrary, if they freeze, the boiler body could break or even explode.
ATTENTION: For no reason must the re be ignited before the system has been completely lled with water; doing this
would lead to serious damage of the entire structure. The system must be lled by means of the loading pipe directly from the
open tank in a way to prevent an excessive pressure of the water network deforming the body of the thermo heating stove.
The system must be kept constantly full of water even during the periods when the use of the thermo-heating stove is
n o t requested. During the winter, inactivity must be faced with the addition of antifreeze.
CLOSED EXPANSION TANK SYSTEM
It is COMPULSORY that the CLOSED expansion Tank system is provided with:
1. A SAFETY VALVE - maximum operation pressure allowed for the system is : see DECLARATION OF PERFORMANCE - CE MARKING
INFORMATION. Higher pressures can cause deformation and breakage of the boiler body. ATTENTION: The inside diameter of the
supply pipe which connects the thermoproduct with the security valve must be equal to the internal diameter of the supply junction
present in the thermoproduct. The above mentioned connection pipe must be without siphoning parts.
2. ANTI-CONDENSATION MIXING VALVE – (see chapter)
3. AUTOMATIC THERMAL DISCHARGE VALVE DSA or TEMPERATURE SAFETY RELIEF VALVE, with double safety sensor
4. CLOSED EXPANSION Tank can be installed on the thermo product return pipe. ATTENTION: The inside diameter of the return pipe
which connects the thermoproduct with the closed expansion vessel must be equal to the internal diameter of the return junction
present in the thermoproduct. The above mentioned connection pipe must be without siphoning parts.
5. PUMP CONTROL THERMOSTAT
6. NOISE ALARM ACTIVATION THERMOSTAT
7. NOISE ALARM
8. TEMPERATURE INDICATOR
9. PRESSURE INDICATOR
10. PUMP SYSTEM
ATTENTION: temperature safety sensors must be in place on the machine or at a distance no greater than 30 cm from the ow
connection of the thermo-product. Whenever the thermo products lack a device, those missing can be installed on the thermo
product ow pipe, within a distance no greater than 1m from the thermo product.. All those parts must no have for any reason
meditate intercept bodies that could accidentally exclude them and must be placed in rooms which are protected from frost. On
the contrary, if they freeze, the boiler body could break or even explode.
IT IS MANDATORY that the thermo products for domestic heating inserted in CLOSED Tank 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 VAST) 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.
VMA ANTICONDENSATION MIXING VALVE IT IS MANDATORY PURCHASED AS OPTIONAL
The Anti-condensation mixing valve nds applications in solid fuel heat generators as it prevents cold water return in the exchanger. Routes
1 and 3 are always open and, along with the pump installed on the return (R), they guarantee water circulation inside the biomass boiler
exchanger (CB- chapter INSTALLATION LAY-OUT). An elevated return temperature, allows eciency improvement, reduces formation of
smoke condensation and prolongs the boiler life span.
Valves on the market have dierent calibrations. La NORDICA advises use of model 55°c with 1” hydraulic connections. Once the valve
calibration temperature is reached, route 2 opens and the boiler water goes to the system via the ow (M).
IMPORTANT lack of installation of the device voids the heat exchanger warranty.
VAST  AUTOMATIC THERMAL DISCHARGE VALVE DSA PURCHASED AS OPTIONAL
Solid fuel thermo products must be installed with safety devices determined by laws in vigour.
For this reason the thermo products is equipped with a heat discharge coil.
The heat discharge coil must have one side connected to the water network (chapter INSTALLATION LAY-OUT - chap. DIMENSION SHEET- A
) and the other rot drainage network (C). When the safety temperature is reached, the automatic thermal discharge valve DSA, the bulb of
which is to be connected to attachment B, enables the intake of cold water in the boiler coil, discharging the excess heat out of pipe C towards
a conveniently installed drain. Cooling circuit upstream pressure must be at least 1,5 bar.
WARNING: We cannot be made liable for a wrong operation of the plant, when it does not comply with the provisions of
these instructions or when it uses additional products not suitable for this device (see chapter Thermostatic Valve VAST
TECHNICAL DATA SHEET).
SYSTEM CONNECTION AND FILLING
Some examples, purely indicative of the installation, are reported at chapter INSTALLATION LAY-OUT, while the connections to the
thermoproduct are reported at chapter DIMENSIONS.
ATTENTION: The lling of the system must take place exclusively by the natural fall of the water from the open expansion
tank through the feed pipe in order to avoid that a too high water system grid pressure could change or cause the explosion
of boiler body.
During this phase, open all the bleed valves of the radiators to prevent the formation of air sacks, checking the outlet of water to avoid
unpleasant oodings.
The watertight test of the installation is performed with the pressure of expansion tank open.
The installation must always be full of water even when the thermo-product is not used. During winter season the non use
has to be faced by adding antifreeze substances.
FIREFIGHTING SAFETY MEASURES
When installing the appliance, the following safety measures must be observed:
a) In order to ensure sucient thermal insulation, respect the minimum safety distance from objects or furnishing components ammable
and sensitive to heat and from materials with ammable structure (see CE MARKING INFORMATION - Picture 7). All the minimum
safety distances are shown on the product data plate and lower values must not be used.
b) in front of the furnace door, in the radiation area, there must be no ammable or heat-sensitive objects or material at a distance of less
than 120 cm. This distance can be reduced to 40 cm where a rear-ventilated, heat-resistant protection device is installed in front of the
whole component to protect;
c) If the product is installed on a no totally refractory oor, one must foresee a reproof background. The oors made of inammable
material, such as moquette, parquet or cork etc., must be covered by a layer of no-inammable material (size according to regional
law, see Picture 1).
The ash drawer must always be inserted when the appliance is in operation.
The solid combustion residues (ashes) must be collected in a metal container that is hermetically sealed and re resistant. The appliance must
never be lit in the presence of gaseous emissions or vapours (for example: glue for linoleum, petrol, etc,). Do not place ammable materials in
the vicinity of the appliance.
During the combustion, thermal air is emitted by involving the heating of areas, door and glass hearth, of the door handles or
controls, of the smokes pipe and, in case, of the front part of appliance. Avoid to touch those parts without a protective clothing
or without accessory tools (gloves resistant to heat, control devices). Ensure children are aware of these dangers and keep
them away from the furnace when it is on.Warn children that the device becomes very hot and that it must not be touched.
When using the wrong fuel or one which is too damp, due to deposits present in the ue, a ue re is possible.
FIRSTAID MEASURES
Should any re arise in the stack or in the ue:
a) Close the feeding door.
b) Close the registers of combustion air
c) Extinguish the re using carbon dioxide re-ghting means (CO
2
dust).
d) Seek immediate intervention of FIRE BRIGADE.
DO NOT EXTINGUISH FIRE USING WATER JETS. When the ue does not burn any more please arrange an examination by a specialist in order
to nd possible cracks and permeable points.
BEAM PROTECTIONS
Considering the irradiation of the hearth, it is necessary to be particularly careful in protecting the beams while designing your stack. Consider
the proximity of beams to the external surfaces of the hearth, on one side, and the irradiation of the glass door, usually very close to the beams,
on the other side. In any case, it has to be considered that the internal or lower surfaces of this beam in ammable material must not come in
contact with temperatures higher than 65 °C. Picture 2 gives some examples of execution.
WARNING: We cannot be made liable for a wrong operation of the plant, when it does not comply with the provisions of
these instructions or when it uses additional products not suitable for this device.
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