Bedienungsanleitung Worcester-Bosch Greenstar 2000 - GR2301iW (Seite 19 von 24) (Englisch)

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Tips on energy saving

Greenstar 2000 – 6 721 839 343 (2023/04)

10 Tips on energy saving

Quick Tap function

▶ Fully open your hot water tap for at least 3 seconds. This ignites the

boiler.

▶ Turn hot water tap to fully closed.

▶ Wait up to 30 seconds1) as the boiler continues to prepare hot water.

▶ Open your hot water tap; hot water is available2)

On average, 3.5 litres of water can be saved when using the Quick Tap

function.

Water saving varies depending on user behaviour, pipework design and

the time of year, for example, if Central Heating is on during the winter,

DHW will heat up quicker than in the summer, reducing the potential for

water saving. Savings are calculated based on average mains water

pressure, a heat-up time of 30 seconds and close proximity of the tap to

the boiler.

Heating economically

The appliance provides a high level of comfort whilst keeping fuel

consumption and the environment effects as low as possible.

The appliance is controlled in such a way that it delivers heat at the

correct rate and only if there is a clear demand from the system.

Central heating systems with thermostatic radiator valves

With modern heating systems set around a 20 °C heat loss, the optimum

setting for a condensing boiler will be approximately 65 °C for the central

heating temperature. This is to ensure a return temperature of less than

52 °C.

The system must be balanced correctly and the radiators may need

upgrading. This allows the boiler to condense as much as possible for the

central heating system.

The temperature of each room can be set individually (except primary

room with the room thermostat) using the thermostatic radiator valves.

Room thermostats

Reducing the setting of the room thermostat by 1 °C can reduce fuel

consumption by up to 10%.

New control systems

Upgrade your heating control system if necessary with the latest

equipment available.

Roof insulation

Around 30% of the heat loss from a property is through the roof. Replace

any old insulation with new insulation, preferably of around 200mm

thickness or more.

Window frames

Single glazed windows, particularly those with steel frames, can lose a

great deal of heat. Consideration should be given to replacement with

PVCu or wooden framed double glazed units.

Radiators

If a radiator is sited underneath a window, its performance will be

affected if the curtains are allowed to drape over the radiator. Shelves

fitted above or in front of the radiator should also be avoided.

It is advisable to manually adjust all thermostatic radiator valves every

2‒3 months to prevent them sticking. Ensure radiator valves are

correctly set and not damaged.

Draughts

Try to ensure that draughts around doors, windows, letter boxes and

keyholes etc. are reduced by using a suitable draught excluder.

WARNING

Air vents!

▶ Do not block or seal any air vents that are installed to ensure that the

appliance operates safely.

Curtains

Lined curtains, or heavier full length curtains can provide excellent

insulation. However, always ensure that the curtains do not drape over

radiators.

11 Your guarantee

This appliance has a guarantee against faulty materials or workmanship

from the date of installation subject to the following terms and

conditions:

• During the period of this guarantee any components of the appliance

that are proven to be faulty or defective in manufacture will be

exchanged or repaired free of charge by Bosch Thermotechnology

Ltd.

• The householder may be asked to prove the date of installation, that

the appliance was correctly commissioned and, where appropriate,

serviced to the satisfaction of Bosch Thermotechnology Ltd. These

should be documented in the commissioning and service records in

the Installation and Maintenance Instructions.

• The appliance has been used only for the normal domestic purposes

for which it was designed.

This guarantee does not affect your statutory rights.

Guarantee registration

Your appliance/product carries a guarantee against faulty material or

manufacture subject to Terms and Conditions.

To read the full Terms & Conditions please visit us on-line at

www.worcester-bosch.co.uk/guarantee.

Your statutory rights are not affected by the manufacturer’s guarantee

1) If the hot water reaches the set temperature before 30 seconds has elapsed, the

boiler will stop firing

2) Hot water is available at the boiler. Delivery time to the tap will vary on the

pipework design and tap distance from the boiler

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