Bosch Appliances 18/25, 25/32kW, 12/18 instruction manual Technical Data, Description, Bsp

Page 6

TECHNICAL DATA

APPLIANCE

INFORMATION

DESCRIPTION

UNITS

12/18

18/25

25/32

 

 

 

 

 

 

 

 

Central Heating

 

 

 

 

 

 

 

Primary water capacity (total)

litres

69

69

72

Maximum static head

metres

30

30

30

 

 

 

 

 

Minimum static head

metres

1

1

1

Available pump head (20°C difference) at max. output

metres water

4.7

4.0

4.2

 

 

 

 

 

Max. permissible sealed system operating pressure

bar

2.5

2.5

2.5

in accordance with WRAS guidelines

 

 

 

 

 

 

 

 

 

 

 

 

Flow restrictor

colour

Lime

—

—

 

 

 

 

 

 

 

 

Domestic Hot Water

 

 

 

 

 

 

 

 

 

 

 

 

Optimum flow rate (±15%)

litres/min

15

18

22

 

 

 

 

 

Minimum inlet pressure (dynamic) for optimum flow rate

bar

1.5

1.2

0.9

 

 

 

 

 

Maximum hot water rise for 90 litres draw off (@optimum flow rate)

°C

40

40

40

 

 

 

 

 

 

 

 

Flue

 

 

 

 

 

 

 

 

 

 

 

 

Exit flue gas mass flow

kg/hr

29

40

51

 

 

 

 

 

 

 

 

Pipework connections

 

 

 

 

 

 

 

 

 

 

 

 

Fuel line (compression)

mm

10

10

10

 

 

 

 

 

CH flow

mm

22

22

28

 

 

 

 

 

CH return

mm

22

22

28

 

 

 

 

 

Water main inlet

mm

15

15

15

DHW outlet

mm

22

22

22

Open vent (optional)

BSP

1

1

1

CH drain/optional feed and expansion

BSP

3/

4

3/

4

3/

4

Condensate (polypropylene)

mm

21.5

21.5

21.5

 

 

 

 

 

 

 

 

Electrical

 

 

 

 

 

 

 

 

 

 

 

 

Electrical power supply voltage

AC...V

230

230

230

 

 

 

 

 

Frequency

Hz

50

50

50

 

 

 

 

 

Max. power consumption

W

240

240

263

Thermostats

 

 

 

 

 

 

 

CH control thermostat range (cut in/cut out)

°C

55/81

55/81

55/81

DHW control thermostat range (cut in/cut out)

°C

55/72

55/72

55/72

 

 

 

 

 

CH & DHW control thermostat differential

°C

5

5

5

 

 

 

 

 

Boiler high limit thermostat set point

°C

92

92

92

 

 

 

 

 

Boiler manual reset overheat thermostat set point

°C

105

105

105

 

 

 

 

 

Flue reset overheat thermostat set point

°C

110

110

110

 

 

 

 

 

 

 

 

General Data

 

 

 

 

 

 

 

 

 

 

 

 

Maximum hearth temperature

°C

<100

<100

<100

 

 

 

 

 

SEDBUK (Band A)

%

90.2

90.1

90.3

 

 

 

 

 

Appliance protection rating

IP

45

45

45

 

 

 

 

 

Weight (excluding packaging)

kg

195

195

206

 

 

 

 

 

Emissions class for NOx and CO

class

3

3

3

 

 

 

 

 

Typical NOx emissions figure

mg/kW hr

75

70

75

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

TECHNICAL DATA

INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR HEATSLAVE EXTERNAL 12/18-18/25-25/32 8 716 113 389b (09/07)

Page 5 Page 7
Image 6
Page 5 Page 7
Contents Greenstar Heatslave External 12/18, 18/25, 25/32kW Installation & Servicing Instructions Installation & Servicing InstructionsContents Safety Precautions Installation Regulations Safety PrecautionsInstallation Regulations OIL SMELLS, Leaks or Fumes from the ApplianceGeneral Information General InformationStandard Package Description Technical DataTechnical Data BSPLayout & Components Layout & ComponentsCleaning Primary Systems Cleaning Primary SystemsMains Water Expansion Vessel Mains SuppliesMains Supplies Electric SupplyG J OIL SupplyOIL Supply HeadWater Systems & Pipework Water Systems & PipeworkFilling Primary Sealed Systems SHOWERS/BIDETSDomestic HOT Water Condensate Pipework Condensate Pressure Relief PipeworkCondensate Pressure Relief Pipework Pressure Relief PipeworkClearances Boiler Location ClearancesBoiler Location FrontCabinet Mounted LOW Level Flue Terminal Positions Cabinet Mounted LOW Level Flue Terminal PositionsTerminal Position High Level Flue Terminal High Level Flue TerminalPositions PositionsFlue Options Balanced External Oilfit Flue OptionsBalanced External Oilfit AC DCabinet Mounted Balanced Horizontal Flue OptionsBalanced Flue Options Lifting and Carrying Precautions Unpacking the BoilerUnpacking the Boiler Safety Pipework & Flue PositionsPipework & Flue Positions Boiler Installation Boiler InstallationFlue Installation Flue InstallationInstallation Notes Hor Plan sectional view Combustion ChamberCombustion Chamber Hook the retainer J over the end two bafflesWater Connections Pipework ConnectionsPipework Connections OIL Supply ConnectionsCondensate Connection Pressure Relief ConnectionOIL Burner OIL Burner & PumpOIL Burner & Pump OIL PumpRefitting Components Refitting ComponentsPlug burner lead E into control box F Board MainsProgrammer External Electrics ElectricsRed Br BrownBlue Green/Yellow WhitePRE-COMMISSIONING Checks Appliance PRE-COMMISSIONINGChecks Appliance Filling the System Filling the SystemStarting the Appliance Starting the ApplianceSafely dispose of the container/discharge Bleed & pressure gauge port Pressure adjustment Vacuum gauge port 25/32Boiler lockout indicator on Holder with oilBurner should be OFF and the circulating pump on Central heating Open all radiator valves Set the room thermostat to minimumWater Treatment Water TreatmentPump and all radiators Finishing Commissioning Finishing CommissioningAppliance Routine servicing Inspection and ServiceInspection and Service Loosen clip D to detach air ductThoroughly clean any deposits Clean the Burner3.0mm Clean both sides of the fan impeller Any debris and clean if necessaryFront 55 80EH 50 80EH11.5 18.6 12.0 22.2Auto reset High Limit thermostat Part Number 8 716 107 640 Short Parts List 12/18Short Parts List 12/18 Burner SterlingShort Parts List 18/25 Short Parts List 18/25Manifold access cover seal Short Parts List 25/32 Short Parts List 25/32Fault Finding Fault FindingNoisy operation Pump noise from air in pump or Problem Cause RemedyFaulty Boiler Operation OIL SmellsNeutral N and the pin, wire or Base of the control box before replacing any componentsMeasure all 230V tests between 535 SE/LD RDB Fault Finding Control BOX Logic forSchematic ElectricalOIL Boiler Combustion Record Service 1 Date General checks Excellence Comes AS Standard

25/32kW, 12/18, 18/25 specifications

Bosch Appliances has carved out a reputation for engineering high-performance heating solutions, particularly with their range of heating systems including the 18/25, 12/18, and 25/32 kW models. These systems are designed to meet the diverse needs of residential and commercial spaces while maintaining energy efficiency and sustainability.

The Bosch 18/25 kW model excels in providing an optimal heating solution for medium to large residential properties. It is equipped with a highly efficient condensing boiler that extracts additional heat from flue gases, achieving significant energy savings. The built-in, user-friendly interface allows for easy programming and monitoring, which maximizes user convenience.

The 12/18 kW model provides a versatile opportunity for smaller homes or apartments. Its compact design ensures that it fits seamlessly into tighter spaces without sacrificing performance. The unit operates quietly, making it an excellent choice for residential areas where noise can be a concern. Additionally, it features the latest modulation technology, optimizing energy usage and maintaining consistent temperatures.

Finally, the 25/32 kW model is ideal for larger installations, offering robust performance even in high-demand scenarios. This model benefits from advanced heating management systems that enable intelligent control of heating zones, ensuring efficiency and comfort throughout the property. With its enhanced energy rating, the 25/32 kW model significantly reduces the carbon footprint, aligning with modern sustainability goals.

Across the board, Bosch Appliances integrates advanced technologies such as intelligent diagnostics, smart home compatibility, and eco-friendly materials. All models are constructed with durability in mind, featuring corrosion-resistant heat exchangers and high-quality components designed for longevity.

The customer-focused features, including comprehensive warranty packages and responsive customer service, further exemplify Bosch's commitment to quality. Overall, Bosch Appliances 18/25, 12/18, and 25/32 kW heating systems stand out for their innovative technology, efficient performance, and reliability, making them an excellent choice for those looking to upgrade their heating solutions.
Top Page Image Contents