Bosch Appliances 18/25, 25/32kW, 12/18 instruction manual Boiler Installation

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WARNING: THIS APPLIANCE IS SERVICED AND REPAIRED EXTERNALLY.

EXTERNAL EQUIPMENT OPERATED AT 230V SHOULD NOT BE INSTALLED, SERVICED OR REPAIRED UNDER ADVERSE WEATHER CONDITIONS.

THIS APPLIANCE IS INSTALLED AND SERVICED EXTERNALLY TO THE PROPERTY, BUT THE ENGINEER MUST HAVE ACCESS TO THE INSIDE OF THE PROPERTY WHEN INSTALLING OR SERVICING THE APPLIANCE.

7

C

B

3

45

2

6

 

8

2

E

D

 

7

A

BOILER INSTALLATION

Note: The cabinet is not load bearing it only provides weather protection for the boiler inside.

1Mark position of the 100mm services duct on the exterior wall and make a hole through.

2Remove the key for the door fastners from its transport position in the left hand side panel flue outlet aperture.

Undo the screws at the bottom of

the front panel (using the key provided) and remove the screws from the rear panel pulling both panels out and down to remove. Store safely away from the installation point.

3Remove the screws from the top panel and lift up to remove, store safely away from the installation point.

4Slide the pressure gauge up out of its bracket and carefully rest on top of the heat exchanger taking care not to snag or kink the capillary.

5Remove the screws securing the control box to the side panels and carefully rest the control box on top of the heat exchanger taking care not to snag or kink the capillaries.

6Remove the screws securing the side panels to the base panel and lift the side panels off complete with the rear support bar (shaded grey) and carefully stand the panels away from the installation point.

7Loosen the flexable air duct clamp (A) and remove the air duct from the burner.

Depress the locking ears to unplug the burner lead (B) from the control box (C).

Unscrew the burner retainers (D), then withdraw the burner (E) from the boiler and store safely away from the installation point.

8Remove the screws securing the base panel to the transit pallet and lift the boiler off the pallet and into its installation position taking care not to scrape the base panel across the hard standing. Do not attempt to lift and position the boiler on your own. Do not use the copper pipes to move the boiler.

Fasten the base to the hard standing using the holes provided. Care should be taken to ensure that the base is level.

9Refit the side panels and rear support bar and screw the side panels to the baseplate and boiler.

Refit the control box and pressure gauge taking care not to kink the capillary tubes.

Measure the 100mmØ services duct to give at least 10mm inside the casing and to finish flush with the interior wall surface, cut to size and fit the duct. Fit the 100mm sealing ring where the duct enters the casing and seal the joint to the exterior wall and inside the cabinet with a suitable sealant.

INSTALLATION

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

BOILER INSTALLATION

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Contents Greenstar Heatslave External 12/18, 18/25, 25/32kW Installation & Servicing Instructions Installation & Servicing InstructionsContents Installation Regulations Safety PrecautionsSafety Precautions Installation Regulations OIL SMELLS, Leaks or Fumes from the ApplianceGeneral Information General InformationStandard Package Technical Data Technical DataDescription BSPLayout & Components Layout & ComponentsCleaning Primary Systems Cleaning Primary SystemsMains Supplies Mains SuppliesMains Water Expansion Vessel Electric SupplyOIL Supply OIL SupplyG J HeadWater Systems & Pipework Water Systems & PipeworkFilling Primary Sealed Systems SHOWERS/BIDETSDomestic HOT Water Condensate Pressure Relief Pipework Condensate Pressure Relief PipeworkCondensate Pipework Pressure Relief PipeworkBoiler Location Boiler Location ClearancesClearances FrontCabinet Mounted LOW Level Flue Terminal Positions Cabinet Mounted LOW Level Flue Terminal PositionsTerminal Position Positions High Level Flue TerminalHigh Level Flue Terminal PositionsBalanced External Oilfit Balanced External Oilfit Flue OptionsFlue Options 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 Combustion Chamber Combustion ChamberHor Plan sectional view Hook the retainer J over the end two bafflesPipework Connections Pipework ConnectionsWater Connections OIL Supply ConnectionsPressure Relief Connection Condensate ConnectionOIL Burner & Pump OIL Burner & PumpOIL Burner OIL PumpRefitting Components Refitting ComponentsPlug burner lead E into control box F Programmer External Electrics MainsBoard ElectricsBlue Green/Yellow Br BrownRed WhitePRE-COMMISSIONING Checks Appliance PRE-COMMISSIONINGChecks Appliance Filling the System Filling the SystemStarting the Appliance Starting the ApplianceSafely dispose of the container/discharge Boiler lockout indicator on Pressure adjustment Vacuum gauge port 25/32Bleed & pressure gauge port Holder with oilBurner should be OFF and the circulating pump on Set the room thermostat to minimum Central heating Open all radiator valvesWater Treatment Water TreatmentPump and all radiators Finishing Commissioning Finishing CommissioningAppliance Inspection and Service Inspection and ServiceRoutine servicing Loosen clip D to detach air duct3.0mm Clean both sides of the fan impeller Clean the BurnerThoroughly clean any deposits Any debris and clean if necessaryFront 11.5 18.6 50 80EH55 80EH 12.0 22.2Short Parts List 12/18 Short Parts List 12/18Auto reset High Limit thermostat Part Number 8 716 107 640 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 FindingFaulty Boiler Operation Problem Cause RemedyNoisy operation Pump noise from air in pump or OIL SmellsNeutral N and the pin, wire or Base of the control box before replacing any componentsMeasure all 230V tests between Control BOX Logic for 535 SE/LD RDB Fault FindingElectrical SchematicOIL Boiler Combustion Record Service 1 Date Excellence Comes AS Standard General checks

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.
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