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Installation

Logano plus SB325 – 6 720 806 328 (2013/07)

5.11.1 Fitting the burner to the combustion chamber door

The burner connection dimensions of the combustion chamber door
comply with EN226:

Fig. 28 Burner mounting dimensions in combustion chamber door

If the diameters of the blast tubes are larger than the holes provided,
please contact your supplier.

If the blast tube is not long enough to reach the inner edge of the thermal
insulation, a 45° chamfer can be applied to the thermal insulation.

The combustion chamber door must be opened to allow the burner to be
mounted.
▶ Open the combustion chamber door (



chapter 5.10.1, page 24).

▶ Push the gasket (included in the burner delivery) onto the blast tube.

▶ Fit the burner onto the combustion chamber door using the screws

supplied [2].

▶ Cut out insulating rings [4] to fit the diameter of blast tube [5].
▶ Fill the remaining gap on the inside of the combustion chamber door,

between combustion chamber door insulation [3] and blast tube [5],
with adapted insulating rings [4].

Fig. 29 Fitting the burner

[1]

Burner

[2]

Combustion chamber door

[3]

Thermal insulation for combustion chamber door

[4]

Insulating rings

[5]

Blast tube

▶ Close the combustion chamber door and tighten the hexagon bolts

(



chapter 5.10.1, page 24).

DANGER:

Injury/system damage through excess loads.

▶ Use suitable lifting gear for mounting the burner.

WARNING:

Damage to health, including skin and eye

irritation, as a result of inhaling or coming into contact
with fibre dust.
Fibre dust may be inhaled when working on the thermal
insulation and insulating rings.

▶ Wear a breathing mask and protective glasses with

side shields when working on the thermal insulation.

▶ Wear gloves and clothing that is loose-fitting around

the neck and wrists. Clean off dirty clothing before
removing or changing it (e.g. by vacuuming, although
never use compressed air).

NOTICE:

System damage through incorrect or missing

insulating rings.
▶ Only use the insulating rings supplied.

Refer to the installation instructions of the relevant
burner for its mounting and connection.

Boiler size SB325 [kW]

50-70

110

150

90-115

130

170

Tab. 13

6 720 804 354-19.1ITL

Installation of the insulating rings should be omitted if
this is specified in the installation information from the
burner manufacturer.

6 720 804 354-18.1ITL

Содержание Logano plus SB325

Страница 1: ...refully before carrying out installation and maintenance Installation and service instructions for contractors Floor standing condensing boiler Logano plus SB325 6 720 804 354 00 1ITL 6 720 806 328 2013 07 GB ...

Страница 2: ...iler to the pipework 19 5 5 Installing the condensate hose and neutralising system 20 5 6 Installing the minimum pressure switch and minimum pressure limiter accessories 21 5 7 Installing the low water level limiter accessory 21 5 8 Filling the boiler and checking connections for leaks 21 5 9 Fitting the casing 21 5 9 1 Fitting the connection plates 21 5 9 2 Fitting the side panels 22 5 9 3 Routin...

Страница 3: ...s low water indicator requirements 39 11 3 7 Burner requirements 39 11 3 8 Boiler controller 39 1 General safety instructions and explanation of symbols 1 1 Key to symbols Warnings The following keywords are defined and can be used in this document NOTICE indicates a situation that could result in damage to property or equipment CAUTION indicates a situation that could result in minor to medium in...

Страница 4: ... reduce the size of air vents in doors windows or walls If draught proof windows are fitted ensure there is an adequate combustion air supply Ensure that the boiler installation room remains free from the risk of frost The heating system must be installed and operated in accordance with the current applicable standards rules and regulations Thermal disinfection Risk of scalding Monitor any operati...

Страница 5: ...livery but are required to operate the boiler Burner Boiler safety assembly Safety equipment Cleaning brushes Control unit 2 7 Operating conditions Type Output SB325 50 kW 70 kW 90 kW 115 kW Tab 2 Type overview Observe all standards and directives applicable to the installation and operation of this heating system in your country Observe the information on the data plate These are definitive and m...

Страница 6: ...rmohydraulic return connections for the high and low temperature heating circuits The SB325 must be equippedwithaburnerthatissuitablefortheboiler Theboileroperates according to the three pass system Fig 1 Optional accessories are listed in the general catalogue The main components of the boiler are Fig 2 page 7 Boiler shell 1 in conjunction with a burner The boiler block transfers the heat produce...

Страница 7: ...or 3 Reversing chamber door 4 Boiler flow connection 5 Test point sensor pocket 6 Safety valve connection 7 Connection for pressure switch 8 Return connection 2 high temperature return 9 Flue gas connection 11 Drain return connection 1 low temperature return 12 Condensate outlet 6 720 804 354 03 1IT L 2 1 3 8 11 12 5 6 7 4 9 ...

Страница 8: ...ction HVSL Height safety valve connection L Boiler length incl casing LBR Burner length LK Boiler block length MDW Connection for minimum pressure switch RK1 Boiler return connection 1 low temperature return RK2 Boiler return connection 2 high temperature return VK Boiler flow connection VSL Safety valve and flow safety line connections for open vented systems 2 12 1 Measurements L VK M VSL MDW AK...

Страница 9: ...l load max kW 47 4 66 4 85 3 109 0 Partial load 40 kW 19 0 26 6 34 1 43 6 Net weight kg 294 300 314 321 Water content l 237 233 250 240 Gas content l 90 120 138 142 Available draught Pa 501 subject to burner 1 Maximum recommended pressure difference Pressure drop on the hot gas side mbar 0 43 0 50 0 59 0 77 Pressure drop on the water side mbar Fig 4 page 10 Standby loss Fig 5 page 10 Maximum flow ...

Страница 10: ...eragesacrosstheseries Themeasuredfluegastemperaturemaydiffer depending on the burner setting and actual temperature of the system Full load C 45 45 45 45 Partial load 40 C 30 30 30 30 Flue gas mass flow rate Full load kg s 0 0189 0 0268 0 0344 0 0443 Partial load 40 kg s 0 0074 0 0103 0 0133 0 0171 System temperatures 80 60 C Rated output gas Full load kW 46 0 64 4 82 7 105 7 Partial load 40 kW 18...

Страница 11: ...ng system Every load cycle burner on off causes thermal stresses loads on the boiler shell The number of burner starts must therefore not exceed 15 000 per year The following recommendations and settings are designed to meet this criterion see also information on setting the control unit and the hydraulic connection to the heating system If you still cannot meet this criterion please contact the s...

Страница 12: ...ntrol unit must therefore be prevented from becoming ineffective i e through the boiler water controller switching the burner on and off Maintain the minimum differential between the selected shutdown temperature of the high limit safety cut out the temperature controller the maximum boiler water temperature and the maximum temperature demand Tab 10 page 12 Select set temperatures for the heating ...

Страница 13: ... shut off valve SAV in the gas train may lock out Select control equipment that allows a gentle start up with a time delay when the system is cold Aftertheburnerenable anautomatictimer forexample shouldlimit the burner to low load for a period of approx 180 seconds A restricted heat demand will prevent uncontrolled cycling of the burner Itmustbepossibletoshowthenumberofburnerstartsonthecontrol uni...

Страница 14: ...Setting value maximum pressure limiter 5 bar 0 5 bar 4 5 bar Minimum pressure limiter The minimum pressure limiter not part of the standard delivery accessory must be set in such a way that no steam bubbles form in the boiler while still operating the boiler safely This setting depends on the system conditions and the siting of the boiler system The set point is based on the boiling pressure corre...

Страница 15: ...the boiler with a crane Hangliftingropehooksonthedesignatedliftingeyesonthetopofthe boiler Attach the hoist crane lifting hooks to the lifting rope Fig 7 Lifting the boiler with a crane 1 Crane hooks with safety mechanisms 2 Lifting eyes DANGER Risk to life from inadequately secured boiler Use suitable means to transport the boiler e g several pallet trucks a forklift truck or a crane Whentranspor...

Страница 16: ... trucks Fig 9 Moving the boiler with two pallet trucks DANGER Risk to life through falling load Distribute the boiler weight evenly across the forklift truck pallet truck when lifting and moving the boiler Observetheweightoftheboilerandthatofthemeans of transport When transporting secure the boiler to prevent it falling NOTICE System damage due to damaged boiler shell Only move the boiler with a f...

Страница 17: ...stem observe all country specific standards guidelines and local regulations The information on the data plate is binding and must be observed DANGER Risk to life through poisoning Insufficient ventilation can lead to dangerous flue gas leaks Never close off or reduce the size of ventilation and extract air vents Never operate the boiler unless faults are rectified immediately Inform the operator ...

Страница 18: ...ound thermal insulation mat with two spring hooks 1 on each side Fig 13 Position the thermal insulation strip 2 at the top around the boiler shell ring and secure to the right and the left onto the lower front insulationsectionwithtwospringhooksoneachside 1 Fig 13 Place the upper front insulation section 3 on the front of the boiler shell Fig 13 Fitting and fastening the lagging 1 Spring hooks 2 S...

Страница 19: ...hey would have a detrimental effect on air borne and structure borne noise as well as the start up pressure hammer Prevent sharp edged joints between rectangular connection flanges and the connection pipe As with any reductions expansions that may be required the angle of the joint should not exceed 30 Wherepossible connectionpiecesshouldbejoinedtothechimneyto provide optimum flow characteristics ...

Страница 20: ... safety pipe flow is connected to the VSL connection 5 5 Installing the condensate hose and neutralising system Fit the siphon provided 3 to the condensate drain 5 Undo cap 2 and fill siphon with approximately two litres of water Fig 16 Installing the condensate hose 1 Connection bend 2 Cap 3 Siphon 4 Siphon outlet to neutralising system or drain 5 AKO condensate drain Please refer to the separate...

Страница 21: ...allpressure controlandsafetyequipmentis working correctly 5 9 Fitting the casing 5 9 1 Fitting the connection plates Fit front tie bar with trapezoid cut out facing down so that the 2 holes match up with the threaded pins at the top and fix with nuts Fitreartiebar withtrapezoidcut outfacingdown sothatthe2 holes match up with the threaded pins at the top and fix with nuts Balance the front and rear...

Страница 22: ...all the first part of the boiler cover chapter 5 9 6 Install the control unit and temperature sensor chapter 5 14 page 27 and chapter 5 13 page 26 5 9 3 Routing the burner cable Route the burner cable on the boiler insulation from the burner connection to the installation location of the control unit Insert the strain relief 2 for the burner cable 3 with both pins into the holes on the angled sect...

Страница 23: ...ting the boiler front cover Place front boiler cover 1 on top of the angled edges of the side panels and pull forwards until the right and left hand hooks click into place in the slot Fig 24 Screw front boiler cover 1 firmly into the side tie bars by screwing 2 self tapping screws through the tabs on the boiler cover and the angled edge on the side panels After installing the cables and temperatur...

Страница 24: ...amber door Tighten the screws with a torque of 25 Nm 5 10 2 Refitting the door hinges As standard the combustion chamber door opens from left to right The following instructions assume the standard direction Ifrequired duetospacerestrictions thecombustionchamberdoorcan be converted to open to the left Open the combustion chamber door Pull the hinge pin Fig 27 1 out of the hinge Hook combustion cha...

Страница 25: ...door 3 Thermal insulation for combustion chamber door 4 Insulating rings 5 Blast tube Close the combustion chamber door and tighten the hexagon bolts chapter 5 10 1 page 24 DANGER Injury system damage through excess loads Use suitable lifting gear for mounting the burner WARNING Damage to health including skin and eye irritation as a result of inhaling or coming into contact with fibre dust Fibre ...

Страница 26: ...pushed back automatically when it is inserted Fig 32 Fig 32 Inserting the plastic coil into the sensor pocket 1 Compensating spring 2 Plastic spiral 3 Sensor retainer 4 Sensor pocket Never kink excess lengths of capillaries Route the sensor lead to the control unit Connect the sensor lead to the control unit NOTICE System damage through damaged capillaries or incorrectly fitted temperature sensor ...

Страница 27: ...Cover 2 Flexible hooks 3 Rectangular openings in the front boiler cover 4 Locking tabs 5 Oval holes in front boiler cover 6 Cable feed in the front boiler cover 7 Holes for self tapping screws DANGER Danger to life through electric shock Before opening the boiler isolate the heating system across all poles and secure against unintentional reconnection Carefully route the cables leads and capillary...

Страница 28: ... prevent contamination in the boiler flush the heating system prior to commissioning Flush the system prior to connection to the boiler or Isolate the heating flow and return to the boiler Connect the heating flow to a water connection Connect hose to the heating return of the heating system Route hose from the heating return to a drain Open connected consumers e g radiators Flush the heating syst...

Страница 29: ... tightness Check the control unit connections and temperature sensor positions Fill the condensate siphon 6 4 Commissioning the control unit and burner By commissioning the control unit you automatically commission the burner as well The burner can then be started by the control unit For further information see the installation instructions of the relevant control unit or burner chapter 3 9 page 1...

Страница 30: ...ll safety equipment 7 Check the fuel line for tightness 8 Starting the burner See technical burner documentation 9 Complete the burner test report regarding the individual output stages 10 Conduct a tightness test on the hot gas side After a short time in operation tighten the screws in the combustion chamber door to prevent leakage around the door as a result of the packing cord settling 11 Check...

Страница 31: ...al days due to a fault shutdown and there is a risk of frost drain the heating water at the drain fill valve Also leave the air vent valve at the highest point in the system open NOTICE System damage due to frost The heating system can freeze as a result of a power failure or if the power has been switched off Checkthe Controlunitsettings toensurethesystem remainsoperational especiallywhenthereisa...

Страница 32: ...ng when opened Make sure that both hinge pins Fig 12 1 page 18 are inserted NOTICE Boilerdamageduetonotusingtheappropriate cleaning equipment Onlyusethemanufacturer sowncleaningequipment 6 720 804 349 07 1ITL NOTICE System damage through using incorrect cleaning equipment If cleaning with a brush use only genuine cleaning brushes from the manufacturer When cleaning only use brushes made of nylon o...

Страница 33: ... the gasket on the cleaning cover has to be replaced chapter 8 3 4 Close and secure the combustion chamber door chapter 5 10 1 page 24 Close and tightly seal the cleaning cover on the flue gas collector chapter 8 3 5 Continue to ensure adequate ventilation of the boiler room Remove the foil from the control unit Restart the heating system Replace the gasket in both the flue gas collector cover and...

Страница 34: ...tem water pressure Topuptheheatingwaterifthepressuregaugeneedle 3 dropsbelow the green band 2 Top up with water via the filling valve in the heating system pipework Vent the heating system Check the water pressure once more Fig 40 Manometer for sealed unvented heating systems 1 Red needle 2 Green marking 3 Manometer needle 8 4 3 Installations with automatic pressurisation systems For installations...

Страница 35: ...er of flue gas collector 6 Check and clean the burner Visual inspection and remove any contamination Check all safety equipment safety shutdown Function check Flue gas analysis with test report for each output stage See technical burner documentation 7 Check the flue for function and safety See technical burner documentation 8 Check the hydraulic seal of the condensate trap and supplement if requi...

Страница 36: ...the cleaning cover of flue gas collector Page 33 5 Check that the condensate drain pipe is clean and filled with a hydraulic seal 6 Check the neutralising system where fitted See technical documentation of the neutralising system 7 Start up the heating system Page 28 8 Final check of the maintenance work take measurements and record values and test results See technical burner documentation 9 Chec...

Страница 37: ...e participate in country specific recycling processes that ensure optimum recycling All of our packaging materials are environmentally compatible and can be recycled Obsolete equipment Old appliances contain materials that should be recycled The relevant assemblies are easy to separate and all plastics are identified In this manner the individual components are easily sorted and added into the rec...

Страница 38: ...er or a replacement measure approved by the manufacturer for each boiler 12 Non return valve 13 Drain fill valve DFV 14 Expansion line 15 Shut off valve protected against unintentional closure e g by sealed cap valve 16 Drain upstream of the expansion vessel 17 Expansion vessel DIN EN 13831 Low water level limiter to protect against overheating InaccordancewithEN12828 2003 alowwaterlevellimiterisr...

Страница 39: ... F ID Observe the information in chapter 5 6 of the installation instructions Limiters with a time delay must not be installed The limiter sits on the boiler safety assembly chapter 2 11 and 2 12 Possible connection with G 11 3 5 Minimum pressure limiter as low water level limiter requirements Appliances which are suitable for responding under decreasing pressure must be installed e g type tested ...

Страница 40: ...Buderus Cotswold Way Warndon Worcester WR4 9SW All Enquiries 0844 892 3004 www buderus co uk In the UK and IE Buderus is a brand name of Bosch Thermotechnology Ltd ...

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