KEY TO SYMBOLS
6 720 815 725 (2015/05)
3
1
KEY TO SYMBOLS
1.1
KEY TO SYMBOLS
WARNINGS
The following keywords are defined and can be used in this document:
•
NOTE
indicates a situation that could result in damage to property or
equipment.
•
CAUTION
indicates a situation that could result in minor to medium
injury.
•
WARNING
indicates a situation that could result in severe injury or
death.
•
DANGER
indicates a situation that will result in severe injury or
death.
IMPORTANT INFORMATION
ADDITIONAL SYMBOLS
SYMBOLS USED IN THIS MANUAL
PLEASE READ THESE INSTRUCTIONS CAREFULLY BEFORE
STARTING INSTALLATION.
1.2
SAFETY PRECAUTIONS
IF YOU SMELL GAS
A gas leak could potentially cause an explosion. If you smell gas, observe
the following rules.
▶ 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.
▶ Open windows and doors.
▶ Warn your neighbours and leave the building.
▶ Prevent anyone from entering the building.
▶ Well away from the building: call the National Gas Emergency Service
on 0800 111 999.
BOILER OPERATION:
This boiler must only be operated by a responsible adult who has
been instructed in, understands, and is aware of the boiler's
operating conditions and effects.
Benchmark places
responsibilities on both
manufacturers and installers.
The purpose is to ensure that
customers are provided with the correct equipment for their needs, that
it is installed, commissioned and serviced in accordance with the
Warnings in this document are identified by a warning
triangle printed against a grey background.
Keywords at the start of a warning indicate the type and
seriousness of the ensuing risk if measures to prevent
the risk are not taken.
This symbol indicates important information where
there is no risk to people or property.
Symbol
Explanation
▶
Step in an action sequence
Cross-reference to another part of the document
•
List entry
–
List entry (second level)
Domestic Hot Water
Central Heating
Hot Water Storage Cylinder
Domestic Cold Water Supply
Electrical Supply
Gas Supply
Table 1 Commonly used symbols
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
GAS SAFE
registered,
competent person. Failure to install correctly could lead to
prosecution.
If you are in any doubt, contact the Worcester Technical helpline
(0330 123 3366).
Please leave these instructions with the completed BENCHMARK
CHECKLIST, (or a certificate confirming compliance with IS 813, Eire
only) and the user manual with the owner or at the gas meter after
installation or servicing.
Distance learning and training courses are available from Worcester.
The BENCHMARK CHECKLIST can be found in the back of this
Installation manual.
Ø Diameter
NG
Natural Gas
LPG
Liquid Petroleum Gas
CH
Central Heating
DHW
Domestic Hot Water
DCW
Domestic Cold Water
PRV
Pressure Relief Valve
NTC
Negative Temperature Coefficient (sensor)
IP
Ingress Protection
RCD
Residual Current Device
TRV
Thermostatic Radiator Valve
ECV
Emergency Control Valve
WRAS
Water Regulations Advisory Scheme
SEDBUK
Seasonal Efficiency of Domestic Boilers in the U.K.
Table 2 Abbreviations use in this manual
