Table of Contents
Explanation of symbols and safety instructions
1.2
General safety instructions
H Please read these instructions carefully before
starting installation.
• These instructions are applicable to the Worcester
appliance model(s) stated on the front cover of this
manual only and must not be used with any other
make or model of appliance.
• These instructions apply in the UK and Ireland only
and must be followed except for any statutory
obligations.
• This appliance must be installed by a competent
registered gas engineer, such as a Gas Safe
registered engineer including a British Gas
engineer. Failure to install correctly could lead to
prosecution.
• If you are in any doubt, contact the Worcester,
Bosch Group help line
(0330 123 3366).
• Distance learning and training courses are available
from Worcester.
• The BENCHMARK Commissioning Checklist can be
found on page 78 of this Installation manual.
H Notices for the target group
These installation instructions are intended for gas,
plumbing, heating and electrical contractors. All
instructions must be observed. Failure to comply with
instructions may result in material damage and
personal injury, including danger to life.
▶ Read the installation instructions (heat source,
heating controller, etc.) before installation.
▶ Observe the safety instructions and warnings.
▶ Follow national and regional regulations, technical
regulations and guidelines.
▶ Record all work carried out.
H Intended use
The appliance may only be used for heating water or
domestic hot water in domestic properties.
▶ Observe the details on the data plate and the
specifications (installation manual) to ensure
correct use of this appliance.
▶ Worcester Bosch offer flue gas systems which are
suitable for use with the appliance. It is the
responsibility of the designer/installer of the flue to
ensure this flue gas system operates correctly and
in a safe manner.
H If you smell gas
A gas leak could potentially cause an explosion. If you
smell gas, observe the following rules:
4
▶ Prevent flames or sparks:
– Do not smoke, use a lighter or strike matches.
– Do not operate any electrical switches or unplug
any equipment.
– Do not use the telephone or ring doorbells.
▶ Turn off the gas at the meter or regulator.
▶ Open windows and doors.
▶ Warn your neighbours and leave the building.
▶ Prevent anyone from entering the building.
▶ Move well away from the building: call the National
Gas Emergency Service on 0800 111 999.
▶ L.P.G. boilers: Call the supplier's number on the
side of the gas tank.
H Risk to life from carbon monoxide poisoning
There is a risk to life from escaping flue gases
▶ Do not modify the flue gas system.
▶ Ensure that flue pipes and gaskets are undamaged.
If flue pipes are damaged or leaking:
▶ Turn off and isolate the appliance.
▶ Open windows and doors.
▶ If necessary, leave the building and warn your
neighbours.
▶ Prevent anyone from entering the building.
▶ Rectify any damage to the flue system immediately.
H Installation and maintenance
Installation and maintenance must only be carried out
by a competent registered gas engineer, such as Gas
Safe registered engineer or British Gas engineer.
▶ Carry out a gas tightness test after completing work
on gas-carrying components.
▶ Only use original spares.
H Electrical work
Electrical work must only be carried out by a qualified
electrician:
▶ Before starting electrical work;
– Ensure that the electricity supply is safely
Isolated and secured to prevent inadvertent re-
connection.
Information on safe isolation can be found in the
Health and Safety Executive guidance HSG85.
– Using test equipment approved to GS38 to
confirm that the electricity supply is
disconnected.
▶ Refer to the manufacturer's information when
installing non Worcester components and systems
to the Worcester appliance.
Worcester 2000 – 6 721 814 551 (2019/09)
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