Download - Buderus
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7System maintenanceSystems are generally designated as open or sealedsystems. Open systems are now rarely installed.Therefore, a sealed system is used as an example ofhow you can check the water pressure.The specialist will have carried out all initial settingsduring commissioning.7.2.2 Open systemsOn open systems the pressure gauge needle (Fig. 4,item 1) must be within the red range (Fig. 4, item 3).2137.2.3 Sealed systemsOn sealed systems the pressure gauge needle (Fig. 5,item 2) must be within the green range (Fig. 5, item 3).Set the red needle (Fig. 5, item 1) on the pressuregauge to the required system pressure.• Check the system water pressure.Fig. 4Item 1:Item 2:Item 3:Pressure gauge for open systemsPressure gauge needleGreen needleRed markingCAUTION!SYSTEM DAMAGEthrough frequent re-filling.The system may be damaged, dependingon water quality, by corrosion or scaling, ifyou frequently need to re-fill your systemwith make-up water.• Ensure that your heating system isadequately vented.213• Check the heating system for leaks andthe function of the expansion vessel.• The water pressure in the system is too low, if thepressure gauge needle falls below (Fig. 5, item 2)the green range (Fig. 5, item 3). Re-fill the heatingsystem with make-up water (see Chapter 3 "Usingcorrect fill and make-up water", page 7).• Fill make-up water through the fill cock in the heatingsystem pipework (return).• Vent the heating system.• Re-check the water pressure.Fig. 5Item 1:Item 2:Item 3:Pressure gauge for sealed systems (in bars)Red needlePressure gauge needleGreen markingWe reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de14Operating instructions condensing gas boiler Logano plus SB735 • Issue 10/2003
NotesWe reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.deOperating instructions condensing gas boiler Logano plus SB735 • Issue 10/200315
- Page 2 and 3: PreambleTo these instructionsThis d
- Page 4 and 5: 1For your safety1 For your safetyTh
- Page 6 and 7: 2Product description2 Product descr
- Page 8 and 9: 3Using correct fill and make-up wat
- Page 10 and 11: 5System shutdown5 System shutdownTh
- Page 12 and 13: 7System maintenance7 System mainten
- Page 16: Heating Contractor:PRODUCTS MANUFAC
NotesWe reserve the right to make any changes due to technical modifications. <strong>Buderus</strong> Heiztechnik GmbH • http://www.heiztechnik.buderus.deOperating instructions condensing gas boiler Logano plus SB735 • Issue 10/200315
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