1
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
minimizing 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.
Additional symbols
Symbol
Meaning
▶
a step in an action sequence
a reference to a related part in the document
•
a list entry
–
a list entry (second level)
Table 1
Symbol
Meaning
Warning of strong magnetic field.
Maintenance by a qualified person should be done
while following the instructions of the service manual.
For operation follow the instructions of the user
manual.
Table 2
Compress Hybrid 3400i AW – 6721861825 (2023/08)
Explanation of symbols and safety instructions
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.
Handling refrigerant
Refrigerant R32 is used in the system.
▶ Only qualified and authorised refrigerant circuit engineers may work
on the refrigerant circuit.
▶ Always wear suitable protective gloves and goggles when working
with refrigerant.
HWhat to do if refrigerant leaks
If refrigerant leaks and touches the skin, it can cause frostbite.
▶ In case of a refrigerant leak, never touch any components of the air to
water outdoor unit.
▶ Avoid skin or eye contact with refrigerant.
▶ Seek medical attention if you get refrigerant on your skin or in your
eyes.
▶ If the refrigerant leaks please contact your installer immediately.
HInstallation, maintenance and repairs
Installation, maintenance and repairs must only be carried out by an
approved contractor.
A suitable qualification is required, especially when working on electrical
parts or on the refrigerant circuit.
▶ Do not repair, manipulate or deactivate safety-relevant components.
▶ Only install original spare parts.
HCommissioning
Commissioning must only be carried out by the service engineer of the
manufacturer or the installer.
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.
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