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Key to symbols and safety instructions
1.1
Key to symbols
Warnings
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.
The following keywords are defined and can be used in this
document:
•
NOTICE 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
This symbol indicates important information
where there is no risk to people or property.
Additional symbols
Symbol
Explanation
▶
Step in an action sequence
Cross-reference to another part of the document
•
List entry
–
List entry (second level)
Abbreviations
CH
= Central Heating
DHW
= Domestic Hot Water
RF
= Radio Frequency
DST
= Daylight Savings Time
BST
= British Summer Time
GMT
= Greenwich mean time
RPB
= Rotary Push Button
Definitions (DST/BST)
Daylight Saving Time (DST) and British Summer Time (BST)
begins on the last Sunday in March at 1:00am GMT and clocks
are put forward by one hour.
British Summer Time (BST) ends on the last Sunday in October
at 2:00am BST and the clocks are put back by one hour.
Comfort I– 6720810964 (2014/07)
Key to symbols and safety instructions
1.2
General safety instructions
These installation instructions are intended for heating
engineers, and electricians.
▶ Read any installation instructions (boiler, heating controls,
etc.) carefully before starting the installation.
▶ Observe the safety instructions and warnings.
▶ Observe national and regional regulations, technical rules
and guidelines.
▶ Record all work carried out.
Appliance operation
This appliance can be used by children aged from 8 years and
above and persons with reduced physical, sensory or mental
capabilities or lack of experience and knowledge if they have
been given supervision or instruction concerning use of the
appliance in a safe way and understand the hazards involved.
Children shall not play with the appliance. Cleaning and user
maintenance shall not be made by children without
supervision. (BS EN 60335-1 2012)
Installation, commissioning and servicing
Installation, commissioning and servicing must only be carried
out by a competent engineer.
▶ Only use original spares.
Electrical work
Electrical work must only be carried out by a qualified
electrician.
▶ Before starting electrical work:
– Isolate the mains electrical supply and secure against
unintentional re-connection.
– Check for zero voltage.
▶ Also observe connection diagrams of other system
components.
Handover to the user
When handing over, instruct the user how to operate the
heating system and inform them about its operating
conditions.
▶ Explain how to operate the heating system and draw the
user's attention to any safety-relevant action.
▶ Explain that modifications and repairs must only be carried
out by an authorised contractor.
▶ Advise the user to have the system serviced annually by a
competent engineer.
▶ Leave this instruction manual with the user or at the
appliance.
3
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