Logano SK645/SK745 - Buderus

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Table of contents Table of contents 1 Low temperature boilers . . . . . . . . . . . . . . . . . . 4 1.1 Types and output . . . . . . . . . . . . . . . . . . . . . 4 1.2 Applications . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.3 Characteristics and special features . . . . . 4 2 Technical description . . . . . . . . . . . . . . . . . . . . . 5 2.1 Equipment level . . . . . . . . . . . . . . . . . . . . . . 5 2.2 Heating water routing . . . . . . . . . . . . . . . . . . 6 2.3 Hot gas routing . . . . . . . . . . . . . . . . . . . . . . . 6 2.4 Dimensions and specification . . . . . . . . . . . 7 2.4.1 Logano SK645 dimensions and specification . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.4.2 Logano SK745 dimensions and specification . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.5 Parameters . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.5.1 Pressure drop on the water side . . . . . . . . 12 2.5.2 Boiler efficiency . . . . . . . . . . . . . . . . . . . . . 13 2.5.3 Standby loss and flue gas temperature . . 14 3 Burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 3.1 Burner selection . . . . . . . . . . . . . . . . . . . . . 15 3.2 Burner requirements . . . . . . . . . . . . . . . . . . 15 4 Regulations and operating conditions . . . . . 16 4.1 Extracts from the regulations . . . . . . . . . . . 16 4.2 Pressure Equipment Directive (PED) and Health & Safety at Work Act . . . . . . . . . . . 16 4.2.1 Application range . . . . . . . . . . . . . . . . . . . . 16 4.2.2 Categories in accordance with the Pressure Equipment Directive 97/23/EC 16 4.2.3 Health & Safety at Work Act regarding steam and hot water boilers . . . . . . . . . . . 17 4.2.4 Overview of the Health & Safety at Work Act [Germany] . . . . . . . . . . . . . . . . . . . . . . 17 4.3 Operating conditions . . . . . . . . . . . . . . . . . 18 4.3.1 Operating requirements . . . . . . . . . . . . . . . 18 4.3.2 Operating conditions . . . . . . . . . . . . . . . . . 18 4.4 Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4.5 Water treatment . . . . . . . . . . . . . . . . . . . . . 19 4.5.1 Definition of terms . . . . . . . . . . . . . . . . . . . 19 4.5.2 Prevention of corrosion damage . . . . . . . . 19 4.5.3 Prevention of damage through scale formation . . . . . . . . . . . . . . . . . . . . . . . . . . 20 4.5.4 Requirements for fill and top-up water . . . 20 4.5.5 Application limits for boilers made from ferrous materials . . . . . . . . . . . . . . . . . . . . 21 4.5.6 Recording the amounts of fill and top-up water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 2 4.5.7 Calculation to determine the permissible amounts of fill and top-up water . . . . . . . . 23 4.5.8 Chemical heating water additives . . . . . . . 23 4.5.9 Combustion air . . . . . . . . . . . . . . . . . . . . . . 23 5 Heating controls . . . . . . . . . . . . . . . . . . . . . . . . 24 5.1 Logamatic 4000 control system . . . . . . . . 24 5.1.1 Logamatic 4212 control unit . . . . . . . . . . . 24 5.1.2 Logamatic 4321 and Logamatic 4322 control units . . . . . . . . . . . . . . . . . . . . . . . . 24 5.1.3 Logamatic4411 control panel system . . . . 24 5.2 Logamatic telecontrol system . . . . . . . . . . 24 6 DHW heating . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 6.1 Systems for DHW heating . . . . . . . . . . . . . 25 6.2 DHW temperature controller . . . . . . . . . . . 25 7 System examples . . . . . . . . . . . . . . . . . . . . . . . 26 7.1 Information regarding all system examples 26 7.1.1 Hydraulic connection . . . . . . . . . . . . . . . . . 26 7.1.2 Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 7.1.3 DHW heating . . . . . . . . . . . . . . . . . . . . . . . 27 7.2 Safety equipment to DIN-EN 12828 and DIN-EN 12953-6 . . . . . . . . . . . . . . . . . . . . 27 7.2.1 Requirements . . . . . . . . . . . . . . . . . . . . . . . 27 7.2.2 Arrangement of safety equipment to DIN-EN 12828; operating temperature ≤ 105 °C; shutdown temperature (high limit safety cut-out) ≤ 110 °C . . . . . . . . . . 28 7.2.3 Arrangement of safety equipment to DIN-EN 12953-6; shutdown temperature (high limit safety cut-out) > 110 °C . . . . . 29 7.3 Sizing and installation information . . . . . . . 30 7.3.1 Boiler circuit pump in the bypass as shunt pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 7.3.2 Boiler circuit pump as primary circuit pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 7.3.3 Low loss header . . . . . . . . . . . . . . . . . . . . . 33 7.4 Single boiler system Logano SK645 and SK745 with boiler control unit . . . . . . . . . 34 7.5 Single boiler system with Logano SK645 and SK745 boilers: Logamatic Boiler and heating circuit control with hydraulic separation . . . . . . . . . . . . . . . . . . . . . . . . . . 36 7.6 Single boiler system with Logano SK645 and SK745 with boiler and heating circuit control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 7.7 Single boiler system with Logano SK645 and SK745 with boiler and heating circuit control as well as hydraulic balancing . . . 40 6 720 646 816 (10/2010) – Technical guide Logano SK645 and SK745
7.8 2-boiler system with Logano SK645 and SK745 with boiler and heating circuit control plus hydraulic balancing . . . . . . . . 42 7.9 2-boiler system with Logano SK645 and SK745 with boiler and heating circuit control plus hydraulic balancing . . . . . . . . 44 7.10 2-boiler system with Logano SK645 and SK745 as well as Logano plus SB315 and SB615 gas condensing boilers with boiler and heating circuit control . . . . . . . . . . . . . 46 8 Delivery and installation information . . . . . 48 8.1 Delivery method . . . . . . . . . . . . . . . . . . . . . . 48 8.2 Installation information . . . . . . . . . . . . . . . . . 48 9 Installation location . . . . . . . . . . . . . . . . . . . . . 49 9.1 General requirements of the installation room . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 9.1.1 Combustion air supply . . . . . . . . . . . . . . . . . 49 9.1.2 Siting combustion equipment . . . . . . . . . . . 49 9.2 Handling details . . . . . . . . . . . . . . . . . . . . . . 50 9.3 Installed dimensions . . . . . . . . . . . . . . . . . . 51 10 Additional equipment and accessories . . . . 52 10.1 Additional safety equipment to DIN-EN 12828 . . . . . . . . . . . . . . . . . . . . . . 52 10.1.1Safety equipment . . . . . . . . . . . . . . . . . . . . . 52 10.2 Additional noise attenuating equipment . . . 54 10.2.1Requirements . . . . . . . . . . . . . . . . . . . . . . . . 54 10.2.2Boiler support with structure-borne noise insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 10.2.3Flue gas silencer with sealing collar to insulate against structure-borne noise . . . 56 10.3 Additional accessories . . . . . . . . . . . . . . . . 56 10.3.1Welded flange . . . . . . . . . . . . . . . . . . . . . . . 56 10.3.2Flue sealing collar . . . . . . . . . . . . . . . . . . . . 56 10.3.3Cleaning equipment set . . . . . . . . . . . . . . . 56 11 Flue system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 11.1 General requirements of the flue system . . 57 11.2 Flue gas parameters . . . . . . . . . . . . . . . . . . 58 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Table of contents 6 720 646 816 (10/2010) – Technical guide Logano SK645 and SK745 3
Page 1: Logano SK645/SK745 Heat is our elem
Page 5 and 6: 2 Technical description 2.1 Equipme
Page 7 and 8: 2.4 Dimensions and specification 2.
Page 9 and 10: 2.4.2 Logano SK745 dimensions and s
Page 11 and 12: Technical description Boiler size U
Page 13 and 14: 2.5.2 Boiler efficiency The boiler
Page 15 and 16: 3 Burner 3.1 Burner selection Eithe
Page 17 and 18: 4.2.3 Health & Safety at Work Act r
Page 19 and 20: 4.4 Fuel Operation with fuel oil Th
Page 21 and 22: 4.5.5 Application limits for boiler
Page 23 and 24: 4.5.6 Recording the amounts of fill
Page 25 and 26: 6 DHW heating 6.1 Systems for DHW h
Page 27 and 28: 7.1.2 Control Operating temperature
Page 29 and 30: 7.2.3 Arrangement of safety equipme
Page 31 and 32: Total boiler flow rate VKges The bo
Page 33 and 34: 7.3.3 Low loss header A low loss he
Page 35 and 36: Selection of control equipment Loga
Page 49 and 50: 9 Installation location 9.1 General
Page 51 and 52: 9.3 Installed dimensions A S A V Fi
Page 53 and 54:
700 H 1 B Additional equipment and
Page 55 and 56:
Additional equipment and accessorie
Page 57 and 58:
11 Flue system 11.1 General require
Page 59 and 60:
Index B Boiler circuit pump .......
Page 61 and 62:
Notes 6 720 646 816 (10/2010) - Tec
Page 63 and 64:
Notes 6 720 646 816 (10/2010) - Tec
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Logano SK645/SK745 - Buderus

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