Manual Worcester-Bosch Greenstar 2000 - GR2300iW C (page 6 of 20) (English)

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Prepare for operation

Greenstar 2000 – 6 721 820 553 (2020/01)

2.3 Maintaining your appliance

Your new appliance represents a long term investment in a reliable, high

quality product.

Wipe the appliance casing with a soft clean cloth. Please do not use

chemical cleaning products which may damage the paint finish.

In order to realise the appliance’s maximum working life, and to ensure

the appliance continues to operate at peak efficiency and performance,

it is essential that servicing and maintenance checks are performed at

least once a year by a competent engineer in accordance with the current

Gas Safe Regulations.

If you would like to know more about servicing options from Worcester,

Bosch Group, please visit worcester-bosch.co.uk.

Please tick the appropriate box on your warranty registration card for

further details of the Worcester, Bosch Group Service Contract.

When your appliance requires servicing please contact a Worcester,

Bosch Group contact centre (see rear cover, appointments).

In addition to the service contract we are pleased to offer a one-off

annual service or breakdown call out for your appliance.

Maintenance tips

• Appliances on a sealed heating system:

– Regularly check the system pressure.

• Do not obstruct the flue outlet or the air inlet.

• Use in hard water areas:

– In exceptionally hard water areas a device to prevent scale

formation may be fitted. Installation of a salt based water softener

should be in accordance with the requirements of the local water

company. A bypass valve must be fitted and used to fill/top up the

heating system with untreated water.

Important note:

▶ If you have to add water regularly in your heating system, call a

competent, qualified person.

2.4 Benchmark standard

The Benchmark initiative is a code of practice

to encourage the correct installation,

commissioning and servicing of domestic

central heating appliances and system

equipment.

A “checklist” is dispatched with every appliance and can be found

towards the back of the Installation, Commissioning and Servicing

Instructions. This is a vital document that needs to be completed by the

installer at the time of installation. It confirms that the appliance has

been installed and commissioned according to the manufacturer's

instructions.

The service record provides space for the recording of regular servicing

of the appliance/heating system and this can become a valuable

document when, for example, you wish to sell the property. The service

record will show a potential purchaser that the heating system has

received regular professional maintenance and servicing during its

lifetime.

The Benchmark initiative aims to:

• Raise standards among professional installers.

• Build and maintain high safety standards in the industry.

• Improve customer satisfaction levels.

• Make a contribution to the nation's commitment to climate change.

3 Prepare for operation

3.1 Sealed heating system

Appliances that can be connected to sealed heating systems are pre-

pressurised before operation, this pressure must be maintained for safe

use of the appliance.

▶ Check regularly that the pressure is maintained.

▶ Re-charge the system if the pressure gauge reads less than 1 bar.

▶ If a permanent significant decrease or increase in pressure is

indicated on the pressure gauge, contact your installer or

maintenance engineer.

3.1.1 Checking the system pressure

Your installer will advise you of the optimum operating pressure.

▶ Check the system pressure on the pressure gauge.

– Static pressure is when appliance is cold and has not fired for

heating or hot water. This will generally be 1 - 1.5 bar.

– Operating pressure is when the appliance is firing for a heating

or hot water demand. This will generally be 1 - 2 bar.

▶ Top up the heating water, if the pressure is too low.

Fig. 2 Pressure gauge for checking the operating pressure

[1] Static pressure range

[2] Operating pressure range

3.1.2 Low pressure indication

Low pressure (shaded area [A]) will be indicated on the appliance:

• The needle is within the area between 0 and 1bar.

Fig. 3 Low pressure indication

[A] Low pressure area

3.1.3 Constantly re-pressurising the system

Constantly having to re-pressurise the heating system should be

investigated as it is an indicator of potential leaks and the concentration

of inhibitor protection in the system will be reduced; this can result in

corrosion within the heating system reducing efficiency and increasing

contaminates.

▶ Check for leaks on heating system (pipe work and radiator valves).

▶ Contact your installer or maintenance engineer if a recurring

significant decrease or increase in pressure is indicated on the

pressure screen.

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I had a Worcester Greenstar 24i boiler replaced. The installers fitted a replacement boiler Worcester Greenstar 2000 GR2300iW C. The output heat is 20KW.
I need advice is this boiler as I think a lower output heat than my old one. Submitted on 20-10-2021 at 00:18
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Worcester-Bosch Greenstar 2000 - GR2300iW C Manual

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