Untitled - Kroll GmbH

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The types BK20 to BK250 –Type BK20 BK30 BK50Nominal heating output kW 15 – 21 22 – 32 33 – 49Maximum operating pressure bar 3 3 3Boiler water capacity Litres 58 70 110Flue pipe, co-axial ID/OD mm 80/125 80/125 80/125Flue pipe (for exhaust only) Ø mm 80 80 80Flue gas temperature max. ° C ca. 47 ca. 47 ca. 47Normal boiler efficiency referring to Hi according to DIN EN 303%%99 (HS)105,7 (Hi)99 (HS)105,7 (Hi)99 (HS)105,7 (Hi)Length mm 1123 1269 1548Width mm 544 580 645Height mm 1163 1148 1474Weight kg 219 261 482Type BK70 BK100 BK250Nominal heating output kW 50 – 70 71 – 120 150 – 250Maximum operating pressure bar 3 4 4Boiler water capacity Litres 110 200 480Flue pipe, co-axial ID/OD mm 110/160 110/160 160Flue pipe (for exhaust only) Ø mm 110 110 160Flue gas temperature max. ° C ca. 47 ca. 47 ca. 47Normal boiler efficiency referring to Hi according to DIN EN 303%%99 (HS)105,7 (Hi)99 (HS)105,7 (Hi)99 (HS)105,7 (Hi)Length mm 1548 1738 1807Width mm 645 850 1171Height mm 1474 1632 1991Weight kg 482 759 1392
convincing powerThe highest efficiency plusenvironmental protection?Yes, this exists.Unused energy is a waste of money andthis in times of continually rising energycosts. The incomplete burning of fuel andhigh flue gas temperatures damage andpollute our environment.The <strong>Kroll</strong> fully condensing boiler unites thehighest efficiency with high environmentalconsiderations.The residual energy of the flue gases willbe utilised via heat recovery.Sulphur, created by the combustionprocess, is bound and neutralised, andthus not transmitted through the exhaustgases, saving the environment.Heating technology for generations –a perfect heating system.The technology is both ingenious andsimple.n Extremely high efficiencythrough the recovery of the residualheat from the flue gas. By permanentcondensation, the consumption ofcombustible is minimized and theflue gas temperature is reduced toa minimum (about 47°C).This leads to efficiency degrees(according to a normal guideline DINEN 303 of Hi 105,7 % and Hs 99 %.n Permanent condensing operationEven at high temperatures of 80/60°C,the boiler is still permanently condensing.n Room sealedThe combustion air is taken in via thedouble-tube pipe system which makesthe unit room sealed.So no additional combustion air isrequired. This contributes to a positiveenergy balance of the buildingn Flue pipe systemDue to the low flue gas temperatures,plastic flue pipes can be utilised, savingon installation costs.n CombustiblesStandard combustibles (fuel oil andnatural gas) can be utilised. By usinga secondary heat exchanger for therecovery of the residual heat and bythe neutralization box, there is no needto take sulphur-free heating oil, whichsaves costs again.n Control system Conform 6.0A compact micro control to controltwo mixed heating circuits (2nd heatingcircuit optional), domestic hot water,circulation pump, burner control 1or stages, cascade control, heatmanager, modulating flue gas fan andboiler circuit pump, automatic summershutdown, pump blocking protection,operating hours counter, party mode,pavement heating mode, energyrecovery via solar tank or buffer.Display with illuminated background,easy handling. Control is extendableto 16 heating circuits via additionalcontroller, eBus, distance surveillancepossible via GSM or internet (additionaltool necessary).n Cascade control(up to 8 boilers) via a master control!n RC7000LAN interfact to eBus controllersallows distance control of allconnected TEM controls via internetand browser.– readout and change of theparametrization– readout and change of the timeprogrammes– datalogging of up to 10 freelydefinable temperatures or set valuesor exits of all connected controls;the data is put on the SD card ascsv file every day– time synchronization of the controlswith an internet time server– visualization of the plant with thefree additional software RC7000 light– visualization of the plant, datarecording, plant documentation,parametrization with the additionalsoftware RC7000 professional– optimization of the plant withRC7000 professional– registration of the RC7000 on theTEM data server– database server with the followingrange of functions:– access to the plant via DNS(e.g. access to the plant with browservia customer name.temdns.ch)– fault history– alert transmission via e-mail– access to several plants via oneaccount possible
Page 4 and 5: The flue gas temperature is the imp
Page 6 and 7: Sophisticated condesing technology
Page 8: Kroll GmbHPfarrgartenstrasse 46D -

Untitled - Kroll GmbH

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