Adarad DUNATECH 2012 Page 13 Installation And User Manual Download | Manualshive

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Safety heat exchanger (optional)

The safety heat exchanger is used to save the boiler in case of overheating. In case of electrical cutout,
pump defect etc. the boiler water temperature can be overheated.
If the boiler water temperature exceeds 95

º

C, thermostat of the safety valve lets cold sanitary water flows through the

serpantine of the safety heat exchanger. Serpantine with cold water circulating inside cools down the boiler water
temperature. When the boiler temperature decreases below the safe degree, safety valve shuts the cold sanitary
water circulation, and the boiler goes back to normal operation.

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Summary of Contents for DUNATECH 2012

Page 1: ...d User Manual Cast Iron Boiler for Solid Fuel Firing Installation and User Manual 1783 Cast Iron Boiler for Solid Fuel Firing Installation and User Manual CALOR SRL Str Progresului nr 30 40 sector 5 Bucuresti tel 021 411 44 44 fax 021 411 36 14 www calorserv ro www calor ro ...

Page 2: ...ected to an appropriate chimney whose construction complies with the instructions given further in this manual and mandatory regulations The chimney must perform the requested draft values for related boiler model Your boiler should not be fired unless the chimney connection is made and there is enough draft for combustion Always allow enough amount of fresh air in the boiler room Refer to the ins...

Page 3: ...0 25 0 15 0 26 0 15 0 27 0 15 0 28 Waterside resistance for t 20 K mbar 0 13 0 51 1 03 1 81 2 92 4 63 0 48 1 36 2 50 4 18 6 53 10 14 A f CO 10 O N Wood logs Wood logs hard coal 27 30 to 90 100 50 recommended 95 3 160 1 1 2 950 490 2 to 4 hour Maximum water content 20 Maximum cross section 10 cm x 10 cm Average calorific value 17 000 20 000 kJ kg Waterside resistance for t 20 K with safety heat exc...

Page 4: ...ith mandatory regulations specified by legal organizations Solid fuels should be stored by keeping minimum 800 mm distance from the boiler We recommend you to keep the solid fuel in another room Dunatech boiler should be installed on a concrete plinth made of a fireproof material For minimum sizes of the plinth following table should be referred 5 Plinth height mm Plinth width mm Plinth length mm ...

Page 5: ...ssure of circulation pump at operated speed If h distance can not be arranged in a system with circulation pump on return line there will be air suction from radiators at the highest level of system In this case the other scheme where pump is installed on the delivery line must be referred A hydrometer must be installed on the delivery line to monitor the pressure level and to check if there is an...

Page 6: ...tween safety lines and boiler The size of expansion tank can easily be calculated regarding the total expanding water contained in whole system If the total volume of water in the system is Vs the volume of expanison tank should be Vg 8 Vs 100 in liters SV Deliver safety line In more practical way just using the nominal heat output SR Return safety line of boiler Qk in terms of kW the volume of ex...

Page 7: ...e on cold sanitary water line to the safety heat exchanger as shown in above scheme 6 Insert the couple thermostat bulb of the safety valve inside the pocket on the front section of the boiler 7 Drain the hot sanitary water outlet of the safety heat exchanger If the boiler water temperature exceeds 95 oC thermostat of the safet valve lets cold sanitary water flows through the serpantine of the saf...

Page 8: ...be made of steel or brick For internal surface stainless steel chimney elements should be preferred against corrosion The space between internal and external surfaces of the chimney should be insulated to prevent condensation in flue gasses At the lowest level of chimney there should be a cleaning cover which is made of steel and sealed for any leakage The length of flue canal between the boiler a...

Page 9: ...of the boiler 2 Place body insulation 48 squarely onto the boiler body Cut a piece out from the front side to create room for the thermo regulator Place rear insulation board onto rear section as seen in the pictures above 3 Fit four pieces of M10 nuts A onto free ends of the four tie rods at the rear side of the boiler as shown in the following picture These nuts will be used to lock side panels ...

Page 10: ...0 S R and S4 2x9 5 self tapping screws L to side panels Fix the rear bend of the top panel to both side panels by the same screws see following pictures 9 Fit primary air damper 19 on the lower front door 17 with the help of primary air damper rod 20 and secure it with a help of M6 nut D as shown in the following picture 11 39 28 38 A B G F a e p o 6 ut as s o t e o o g p ctu e 10 Pass the thermo ...

Page 11: ...12 30 S R 41 41 39 41 41 39 12 30 S R 41 41 39 49 50 21 19 D 20 L 41 41 39 12 30 S R 41 41 39 49 50 21 19 D 20 L 41 41 39 ...

Page 12: ... fixing the rear casing follow the instructions Fit the rear panels as it is seen in the pictures Finally fit the damper onto the rod please see the following pictures 13 51 A B 13 42 L 51 A B 13 42 L 51 A B ...

Page 13: ...boiler water temperature exceeds 95 ºC thermostat of the safety valve lets cold sanitary water flows through the serpantine of the safety heat exchanger Serpantine with cold water circulating inside cools down the boiler water temperature When the boiler temperature decreases below the safe degree safety valve shuts the cold sanitary water circulation and the boiler goes back to normal operation 1...

Page 14: ...ty heat exchanger with the help of 1 2 nipple and 1 2 3 4 hex reducing bushing Then attach the valve to the main supply water line Make sure that the direction of the safe valve is right On the valve there is a arrow that refers main supply water direction 5 Insert the couple thermostat bulb of the safety valve inside the pocket on the front section of the boiler 6 Remove the bulb of boiler thermo...

Page 15: ...ing drilling tap connection on the boiler rear sectiion or the feeding line constructed within the circuit To purge the air contained in the system use air relief valves on the hydraulic circuit on the radiators and also spring pressure relief valve at boiler hot water outlet 16 Firing Set the Kindling Place firestarters crumpled newspaper 3 or 4 sheets balled up fairly tightly on the grate of the...

Page 16: ...perature reach high values sharply with leaving the pump switched off In this case the instant cold water delivey to the very hot boiler may result in cracks on boiler body due to high thermal energy If the thermo regulator does not operate properly shift its setting step by step according to your comfort conditions Lack of chimney draugt If there is lack on chimney draught or there is no draught ...

Page 17: ... come into contact with the skin eyes inhale or swallow 3 Use barrier cream or gloves to protect the skin and goggles to protect the eyes from accidental contact 4 Small quantities can be removed from clothes or skin with a proprietary paint remover or hand cleaning prdouct 5 If inhaled remove sufferer into fresh air if swallowed clean mouth with and drink fresh water but do not induce vomitting 6...

Page 18: ...he solid fuels and auxillary substances chips paper etc to ignite the boiler with the distance less than 800 mm from the boiler 3 Do not cover the fresh air openings of the boiler room as it is very important for the combustion Flue gases 1 There could be a little gas release from the front side of the boiler when the front loading door is opened Never breathe this gas flow 19 b eat e t s gas o 2 ...

Page 19: ...n solid fuel will be consumed rapidly In this case we recommend to reduce air inlet by either primary air or flue damper on the smokehood Check the heat transfer surfaces of cast iron sections The soot formation will change according to fuel type you use and the combustion air amount So if you feel that the outlet water temperature can not reach the usual values with the same conditions heating su...

Page 20: ...EXPLODED VIEW 21 21 ...

Page 21: ...0794 6 sections 2007603282 2007610403 2007610405 DUNATECH FIRE DOOR SECONDARY AIR DAMPER DUNATECH SMOKEHOOD OUTLET Ø160mm DUNATECH UPPER FRONT DOOR RETURN AND FLOW FLANGE R1 DUNATECH SIDE CASING LEFT HAND Ral 9006 EW 0794 4 sections 2007610575 DUNATECH LOWER FRONT DOOR REFRACTORY COVER PLATE 2007609755 2007610496 2007610497 2007610420 2007610494 2007610495 2007610408 2007610488 2002150720 20076019...

Page 22: ...TOP CASING Ral 9006 EW 0794 5 sections 2007610437 DUNATECH TOP CASING Ral 9006 EW 0794 6 sections 2002162240 PLUG 1 2 2007610430 DUNATECH SIDE CASING RIGHT HAND Ral 9006 EW 0794 5 sections CODE PART NAME 2007610432 DUNATECH SIDE CASING RIGHT HAND Ral 9006 EW 0794 7 sections 2007610433 DUNATECH SIDE CASING RIGHT HAND Ral 9006 EW 0794 8 sections 2007610434 DUNATECH TOP CASING Ral 9006 EW 0794 3 sect...

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