Automatic Thermal Discharge Valve Dsa; System Connection And Filling; Fire Safety; In A Emergency - LA NORDICA TERMOROSA XXL Ready DSA Benutzerhandbuch

9. PUMP SYSTEM
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.

AUTOMATIC THERMAL DISCHARGE VALVE DSA

Solid fuel thermo products must be installed with safety devices determined by laws in vigour. For this purpose the product is already
equipped with a heat discharge coil inside the exchanger, as well with an automatic thermal discharge valve DSA. The valve works
thanks to the water coming from the same intake of the system: for this reason the filling of the system must remain open all the time
with no interference of any other device in between. You can find the connections at the system 1, Chap. DIMENSIONS position
A. 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 - MAX 10 bar.

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 filling of the TERMOROSA READY DSA system has to be filled only by means of the tap (pos. 3).
When the manometer (M) shows a pressure of 1-1,2 bar, close the tap. 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 floodings.
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.

FIRE SAFETY

When installing the product, the following safety measures must be observed:
a) In order to ensure sufficient thermal insulation, respect the minimum safety distance from objects or furnishing components
flammable and sensitive to heat (furniture, wood sheathings, fabrics. etc.) and from materials with flammable structure (see
Picture 4 - A). 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 flammable or heat-sensitive objects or material at a distance of
less than 100 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 non totally refractory floor, one must foresee a fireproof background. The floors made of inflammable
material, such as moquette, parquet or cork etc., must be covered by a layer of no-inflammable material, for instance ceramic,
stone, glass or steel etc. (size according to regional law). The base must extend at least 50 cm at the front and at least 30 cm at
the sides, in addition to the opening of the loading door (see
d) No flammable components (e.g. wall units) must be present above the product.
The Product must always operate exclusively with the ash drawer inserted. The solid combustion residues (ash) must be collected in
a sealed, fire resistant container. The Product must never be on in the presence of gaseous emissions or vapours (for example glue
for linoleum, petrol etc.). Never deposit flammable materials near the Product.
During combustion, thermal energy is released which leads to considerable heating of the surfaces, doors, handles,
controls, glass parts, the flue gas pipe and possibly the front part of the appliance. Avoid contact with these elements
unless using suitable protective clothing or accessories (heat resistant gloves, control devices).
Ensure children are aware of these dangers and keep them away from the furnace when it is on.
When using the wrong fuel or one which is too damp, due to deposits present in the flue, a flue fire is possible.

IN A EMERGENCY

If there is a fire in the flue connection :
a) Close the loading door and the ash drawer door
b) Close the comburent air registers
c) Use carbon dioxide ( CO
d) Request the immediate intervention of the Fire Brigade
DO NOT PUT OUT THE FIRE WITH WATER.
When the flue stops burning, have it checked by a specialist to identify any cracks or permeable points.
powder ) extinguishers to put out the fire
2
Picture 4 - B).
ENgLIsH 31