Explanation Of Symbols And Safety Instructions; Explanation Of Symbols; General Safety Instructions - Worcester Greenstar HIU Installation And Maintenance Instructions Manual

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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
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)
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1.2

General safety instructions

HNotices for the target group
These installation instructions are intended for 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.
HTransport information
▶ Only remove packaging just before assembly.
▶ Wear protective gloves when transporting the HIU.
▶ Use suitable means of transportation (e.g. sack truck).
HMounting method
▶ Do not shut off pressure-relief valves.
Risk of fire from soldering and welding!
Greenstar – 6721852556 (2022/11)
Explanation of symbols and safety instructions
High pressures and high temperatures may occur on the primary side.
▶ Wear suitable protective equipment.
H Packaging
The following points should be observed during unpacking.
▶ Check the delivery immediately upon receipt for completeness and
possible transport damage.
▶ In the event of transport damage, the delivery should only be
accepted conditionally.
▶ Do not use damaged components for assembly.
▶ Carefully unpack the unit.
▶ Ensure that all packaging material is removed and that the unit is free
from all materials that may prevent the unit from operating correctly.
HHealth and safety
The appliance contains no asbestos and no substances have been used
in the construction process that contravene the COSHH Regulations
(Control of Substances Hazardous to Health Regulations 1988).
H Danger of burns and scalds
▶ Surfaces of individual components, connections and leaking water
can be very hot and cause severe burns and scalds.
▶ Do not touch hot surfaces.
▶ Caution should be taken not to touch any leaking water or drained
system water unless the temperature is known and safe.
HIntended use
The HIU provides DHW and heating energy to buildings that are supplied
indirectly by district heating or heat network systems.
▶ Only use the HIU in sealed systems for central heating and DHW
heating.
▶ To ensure compliance with the intended use, observe the information
on the data plate and the specifications.
▶ Only install the HIU in frost-free room or enclosure. Ensure a ambient
temperature range of 2 °C to 30 °C.
▶ Only install the HIU straight and vertically upright, as described in
these instructions.
HDanger of burns and scalds
Individual components and discharging water can be very hot and inflict
burns.
▶ Do not touch hot surfaces.
▶ Unless you know what the temperature of the discharging water is,
you should not touch it.
HInspection and maintenance
Regular inspection and maintenance are prerequisites for safe and
energy efficient operation of the heating system.
We recommend you inspect the HIU at least every three years in line with
BSRIA guidance.
▶ Have work carried out only by an approved installer.
▶ If any faults are discovered, have them remedied immediately.
HHandover to the user
When handing over the heating system, explain the operation and
operating conditions to the operator.
▶ Explain operation – with particular emphasis on all safety-related
actions.
▶ Highlight the following points in particular:
– Point out that modifications or repairs may be carried out only by
an competend contractor.
– To ensure safe and environmentally compatible operation, an
inspection every three years, and also cleaning and maintenance
if required, must be carried out.
▶ Point out the possible consequences (personal injury and possible
danger to life or material damage) of not carrying out inspection,
cleaning and maintenance correctly, or omitting it altogether.
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