Bedienungsanleitung Worcester-Bosch GB162-80 (Seite 8 von 72) (Englisch)

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General

6720813171 (2016/05)8

The position selected for installation must allow adequate space for

servicing in front of the boiler.

• in front: 550 mm

• below: 350 mm

• right side: 0 mm

•left side: 0 mm

• above: 40 mm.

In addition, sufficient space may be required to allow lifting access to the

wall mounting bracket. Wall-mounted condensing gas system boilers

must only be used with Worcester flue gas systems, which are certified

with this type of boiler.

Observe the relevant standards, regulations and legislation of the

country or region of final use.

Safe handling of substances:

No asbestos, mercury or CFCs are included in any part of the boiler and

its manufacture.

Potable water:

All seals, joints and compounds (including flux and solder) and

components used as part of the secondary domestic water system must

be approved by WRAS.

CH Water:

Artificially softened water must not be used to fill the central heating

system.

2 General

These installation and maintenance instructions apply to the following

wall-mounted condensing gas boilers:

• GB162-50

• GB162-65

• GB162-80

• GB162-100.

The name of the boiler is made up of the following components:

• GB: Condensing gas boiler

• 162: Type

• 50, 65, 80 or 100: heating range in kW.

The GB162-50/65/80/100 is suitable for use as a single boiler or as part

of a cascade system.

The following technical documentation is available for the

GB162-50/65/80/100:

• Installation and maintenance instructions

•User Manual

• Technical product guide.

If you have any suggestions for improvement or have found any

discrepancies, please do not hesitate to contact us.

CE label

Energy efficiency

Energy efficiency information is given in the User Instructions of the

appliance.

Frost protection

The boiler has integrated frost protection.

The frost protection switches the boiler on at a CH flow temperature of

7 °C and switches it off at a CH flow temperature of 15 °C.

The central heating system is not protected against frost.

Pump test

If the boiler has not received a heat demand for approximately 4 weeks,

the pump will automatically cycle for 10 seconds every 24 hours. This

pump test is first carried out for 24 hours when first switched back on.

Important general instructions for use

Only use the boiler in accordance with its designated use and the

installation and maintenance instructions. Installation, maintenance and

repair must be carried out by competent service engineers (e.g. Gas

Safe registered).

Only use the boiler in conjunction with the accessories and spare parts

indicated in the installation and maintenance instructions. Other

accessories and consumables may only be used if they are specifically

provided for the designated use and if system performance and safety

are not affected in any way.

The boiler is suitable for connection to fully pumped, sealed water

systems only. Arrangements for draining the system by draining valves

must be provided in the installation pipework.

Subject to technical modifications

As a result of our policy of constant development, there may be small

differences between illustrations, functional steps and technical data.

CAUTION: Use this device for its intended purpose only.

DANGER:

Notes relating to the heating system water.

▶ Thoroughly clean and flush the system before it is

filled with water. Use only unsoftened mains water

with the correct dosage of an approved water

treatment product such as Sentinel X100 to fill and

top up the system. For more information about

Sentinel call 0151 420 9563.

▶ When using water treatment, only products suitable

for use with Worcester heat exchangers are

permitted (e.g. Sentinel X100). Your warranty is at

risk if an incorrect water treatment product is used in

conjunction with this appliance. For more

information, contact Worcester Technical Product

Support Department.

▶ It is most important that the correct concentration of

the water treatment product is maintained in

accordance with the manufacturer's instructions.

▶ If the boiler is used in an existing system any

unsuitable additives must be removed by thorough

cleaning. BS 7593 details the steps necessary to

clean a central heating system.

▶ In hard water areas, treatment to prevent lime scale

may be necessary - however, the use of artificially

softened water is not permitted.

▶ Under no circumstances should the boiler be fired

before the system has been thoroughly flushed.

▶ Do not use artificially softened water.

▶ Only plastic pipework containing a polymeric barrier

should be used. Copper pipework must be used for

the first 600 mm.

The appliance complies with the basic requirements of

the relevant European directives. Conformity has been

substantiated by the proper documents which, together

with the declaration of conformity, are filed with the

manufacturer.

If there is a risk of radiators or pipe sections freezing up,

we recommend setting the pump over-run time to

24 hours. See section 14.3, page 54.

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