Installation and operating instructions Wilo-Sevio AIR D 17
SAFETY English
instructions and information must be observed
and followed during the various phases of the
pump’s life cycle (installation, operation, main-
tenance, transport etc.)! The operator is respon-
sible for ensuring that all personnel follow these
instructions and guidelines.
2.1. Instructions and safety instructions
This manual uses instructions and safety instruc-
tions for preventing injury and damage to prop-
erty. To clearly identify them for personnel, the
instructions and safety instructions are distin-
guished as follows:
• Instructions appear in bold and refer directly to
the preceding text or section.
• Safety instructions are slightly indented and bold
and always start with a signal word.
•
Danger
Serious or fatal injuries can occur!
•
Warning
Serious injuries can occur!
•
Caution
Injuries can occur!
•
Caution
(instruction without symbol)
Substantial property damage can occur. Irrepa-
rable damage is possible!
• Safety instructions that refer to personal injury
appear in black and are always accompanied by a
safety symbol. Danger, prohibition or instruction
symbols are used as safety symbols.
Example:
Danger symbol: General hazard
Danger symbol, for example, electrical current
Symbol for prohibited action, e.g. No entry!
Instruction symbol, for example, wear
protective clothing
The safety symbols used conform to the generally
applicable directives and regulations, such as DIN
and ANSI.
• Safety instructions that only refer to property
damage are printed in grey, without safety sym-
bols.
2.2. General safety information
• When installing or removing the aerator, never
work alone in basins. A second person must
always be present.
• The system must always be switched off and the
basin must be drained and cleaned before any
work may be performed (assembly, dismantling,
maintenance, installation).
•
Sufficient aeration must be provided when work
-
ing in enclosed rooms.
• When working in an environment hazardous to
health (media containing faeces, activated sludge
with bacteria, etc.) particular caution must be
taken:
• Open wounds must be cleaned and treated
immediately!
• Eating and drinking is strictly prohibited!
• Appropriate protective equipment must be
worn!
• Disinfect persons and tools when leaving the
unit!
• When welding and/or working with electronic
devices, make sure there is no risk of explosion.
• The operator must report any faults or irregulari-
ties that occur to a line manager immediately.
• Tools and other objects should only be kept in
their designated places so that they can be found
quickly.
These instructions must be strictly observed.
Non-observance can result in injury or substan-
tial property damage.
2.3. Earthing connection
Aeration systems with metal and/or conductive
surfaces must always be grounded. If there is a
possibility that persons can come into contact
with the conductive surfaces and the fluid, the
connection must be equipped with an additional
residual-current device.
2.4.
Conduct during operation
When operating the aeration system, always
comply with locally applicable laws and regula-
tions for work safety and accident prevention. To
help ensure safe working practice, the responsi-
bilities of employees should be clearly specified
by the operator. All personnel are responsible for
ensuring that regulations are observed.
2.5. Media
Each fluid differs in respect of composition,
corrosiveness, abrasiveness, dry matter content
and in many other aspects. Generally, our aera-
tion systems can be used for many applications.
Please note that if requirements change (density,
viscosity or general composition), this may also
affect many parameters of the aeration system.
When using and/or switching the aeration system
to a different media, the following points must be
observed:
•
All components in contact with fluid must have
relevant approvals for the use in clear water and
drinking water applications.
Consult Wilo customer service before using
them in these applications!
• Aeration systems that have been operated in
contaminated water must be cleaned thoroughly
before being used for other media.
• Aeration systems that have been operated in me-
dia containing faeces and/or media hazardous to
