LA NORDICA TERMOSUPREMA COMPACT DSA Instructions For Installation, Use And Maintenance Manual

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LA NORDICA TERMOSUPREMA COMPACT DSA Instructions For Installation, Use And Maintenance Manual Manual pdf 18 page image

TERMOSUPREMA COMPACT DSA / ITALY TERMO DSA18 7095802 - IT - EN - DE - FRproblem. In no way there must be water circulation in the open expansion tank between the safety and loading pipe. This would causethe water oxygenation and the consequent corrosion of thermo-product and installation in a very short time.4. THERMAL DISCHARGE VALVE which is a further positive safety that prevents the boiling even when electric energy is missing. It ismade by a valve cover like a pressure safety valve which differs from it as it opens by reaching a pre-calibrated temperature (normallyat 94 – 95°C) and unload hot water from the installation delivery. This will be replaced with as much cold water coming from the openexpansion tank loading pipe of open tank by draining away the excessive heat.5. SAFETY VALVE FROM 1,5 bar: maximum operation pressure allowed for the system is 1,5 bar (equal to 15 m of the water column).Higher pressures can cause deformation and breakage of the boiler body.6. SAFETY DEVICES envisioned by Regulations in vigour.7. CIRCULATION PUMP : . It would be better to install it on the return in order to avoid that it could disconnect itself at very high watertemperatures but checking that it does not drive water in the open expansion tank otherwise it should cause a continuous wateroxygenation 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)ATTENTION: temperature safety sensors must be in place on the machine or at a distance no greater than 30 cm from the flow connectionof 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. All those parts must no have for any reason meditate intercept bodiesthat could accidentally exclude them and must be placed in rooms which are protected from frost. On the contrary, if they freeze, theboiler body could break or even explode.ATTENTION: For no reason must the fire be ignited before the system has been completely filled with water; doing this wouldlead to serious damage of the entire structure. The system must be filled by means of the loading pipe directly from the open tankin 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 not requested. Duringthe winter, inactivity must be faced with the addition of antifreeze.3.2. CLOSED expansion Tank systemIt is COMPULSORY that the CLOSED expansion Tank system is provided with:1. A 3 bar SAFETY VALVE: maximum operation pressure allowed for the system is 3 bar (equal to 30 m of the water column). Higherpressures can cause deformation and breakage of the boiler body. ATTENTION: The inside diameter of the supply pipe whichconnects the thermoproduct with the security valve must be equal to the internal diameter of the supply junction present in thethermoproduct. The above mentioned connection pipe must be without siphoning parts.2. AUTOMATIC THERMOSTATIC MIXING VALVE – (see chapter 3.3)3. HEAT DISCHARGE VALVE or TEMPERATURE SAFETY RELIEF VALVE, with double safety sensor4. CLOSED EXPANSION Tank can be installed on the thermo product return pipe. ATTENTION: The inside diameter of the return pipewhich connects the thermoproduct with the closed expansion vessel must be equal to the internal diameter of the return junctionpresent in the thermoproduct. The above mentioned connection pipe must be without siphoning parts.5. PUMP CONTROL THERMOSTAT6. NOISE ALARM ACTIVATION THERMOSTAT7. NOISE ALARM8. TEMPERATURE INDICATOR9. PRESSURE INDICATOR10. PUMP SYSTEMATTENTION: safety sensors must be in place on the machine according to that stated in chapter 3.3. All those parts must no have for anyreason meditate intercept bodies that could accidentally exclude them and must be placed in rooms which are protected from frost. Onthe contrary, if they freeze, the boiler body could break or even explode.IT IS MA NDATORY 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 3.4) which does notrequire auxiliary power and can guarantee that the standard set temperature limit is not exceeded. Connection between the power supplyunit 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 - (purchased as OPTIONAL part)The automatic thermostatic mixer valve finds applications in solid fuel heat generators as it prevents cold water return in the exchanger.Picture 1 at page 29Routes 1 and 3 are always open and, along with the pump installed on the return (R), they guarantee water circulation inside the biomassboiler exchanger (CB). An elevated return temperature, allows efficiency improvement, reduces formation of smoke condensation andprolongs the boiler life span.Valves on the market have different calibrations. NORDICA advises use of model 55°c with 1” hydraulic connections. Once the valvecalibration temperature is reached, route 2 opens and the boiler water goes to the system via the flow (M).IMPORTANT lack of installation of the device voids the heat exchanger warranty.3.4. HEAT DISCHARGE VALVE - (purchased as OPTIONAL part)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 (A - Picture 1 at page 29 - Chap. TECHNICAL DATA