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1
Explanation of 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)
Table 1
1.2
General safety instructions
These installation instructions are intended for plumbers,
heating engineers and electricians.
▶ Read the installation instructions (heat appliances,
modules, etc.) before installation.
▶ Observe safety instructions and warnings.
▶ Observe national and regional regulations, technical rules
and guidelines.
▶ Keep a record of any work carried out.
CR 400 | CW 400 | CW 800
Explanation of symbols and safety instructions | 3
Determined use
▶ The product must only be used for controlling heating
systems in single-family or multi-family homes.
Any other use is considered inappropriate. Any damage that
may result is excluded from liability.
Installation, commissioning and maintenance
Installation, commissioning and maintenance must only be
carried out by a competent person.
▶ Never install the product in wet rooms.
▶ Only install genuine spare parts.
Electrical work
Electrical work must only be carried out by a qualified
electrician.
▶ Before starting electrical work:
– Isolate all poles of the mains voltage and secure against
reconnection.
– Make sure the mains voltage is disconnected.
▶ Never connect the product to mains voltage.
▶ Also observe the connection diagrams of other system
components.
Handover to the user
When handing over the heating system, explain the operating
conditions to the user.
▶ Explain how to operate the solar system, with particular
emphasis on all safety-related actions.
▶ Explain that conversions and maintenance must only be
carried out by an authorised contractor.
▶ Point out the need for inspections and maintenance for
safe and environmentally friendly operation.
▶ The installation and operating instructions must be given to
the user for keeping.
Damage caused by frost
The system can freeze if it is switched off:
▶ Observe the notices regarding frost protection.
▶ Due to the additional functions, e.g. DHW heating or anti-
seizing protection, the system should always be left on.
▶ Correct any faults immediately.
6 720 820 872 (2016/12)
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