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Explanation of symbols and safety instructions
1.1
Explanation of symbols
Warnings
In warnings, signal words at the beginning of a warning are used to
indicate the type and seriousness of the ensuing risk if measures for
minimising danger are not taken.
The following signal words are defined and can be used in this
document:
DANGER
DANGER indicates that severe or life-threatening personal injury will
occur.
WARNING
WARNING indicates that severe to life-threatening personal injury may
occur.
CAUTION
CAUTION indicates that minor to medium personal injury may occur.
NOTICE
NOTICE indicates that material damage may occur.
Important information
The info symbol indicates important information where there is no risk to
people or property.
1.2
General safety instructions
HNotices 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, service and commissioning instructions (heat
source, heating controller, pumps, etc.) before installation.
▶ Observe the safety instructions and warnings.
▶ Follow national and regional regulations, technical regulations and
guidelines.
▶ Record all work carried out.
HIntended use
This product is intended for use in sealed heating systems in residential
buildings.
Any other use is considered as not intended. Liability will not be
assumed for any resulting damage.
HInstallation, commissioning and service
The product may only be installed, brought into operation and
maintained by trained personnel.
▶ Use only original spare parts.
▶ Do not repair, manipulate or deactivate safety-relevant components.
▶ The discharge pipe connected to the pressure relief device shall be
installed downwards and to a frost-free drain.
Compress 3800i AW – 6721889832 (2024/04)
Explanation of symbols and safety instructions
HElectrical work
Electrical work must only be carried out by electrical installation
contractors.
Before starting electrical work:
▶ Isolate all poles of the mains voltage and secure against
reconnection.
▶ Make sure the main voltage is disconnected.
▶ Before touching live parts: Wait at least 5 minutes to discharge the
capacitors.
▶ Observe the wiring diagrams of other system components as well.
HConnection to supply mains
Means to safely disconnect the unit from supply mains must be
incorporated.
▶ Install a safety switch that disconnects all poles from supply mains.
The safety switch shall be an over voltage category III appliance.
HConnection to the water supply
This unit is designed to be permanently connected to the water supply.
The connection must not be established with a hose set.
The maximum inlet pressure of the water is 10 bar.
The minimum permissible inlet pressure of the water is 2 bar.
HHandover to the user
When handing over, instruct the user how to operate the heating system
and inform the user about its operating conditions.
▶ Explain how to operate the heating system and draw the user's
attention to any safety relevant action.
▶ In particular, point out the following:
– Modifications and repairs must only be carried out by an
approved contractor.
– Safe and environmentally compatible operation requires
inspection at least once a year and proper cleaning and
maintenance.
▶ Point out the possible consequences (personal injury, including
danger to life or material damage) of non-existent or improper
inspection, cleaning and maintenance.
▶ Leave the installation instructions and the operating instructions
with the user for safekeeping.
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Additional online information
The latest information and services for this product is provided online.
Simply scan this QR code and you will be redirected immediately.
https://www.docs.bosch-thermotechnology.com/doc/6721889832
In addition to the latest versions of the product documentation included
in the scope of delivery, the online information portal gives you access to
installation and maintenance videos as well as other applicable
documents in text form.
These include, for example, product-specific information and service
instructions for maintenance and troubleshooting.
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