4
Safety
Usage for the intended purpose
The following types of cooling-water control valve
are employed in the cooling-circuit return, in order
to maintain a constant return temperature:
◗
CW 44
◗
CW 44k
The equipment may only be used within the ad-
missible pressure and temperature limits, with due
consideration of chemical and corrosive influences.
Usage for the intended purpose also includes read-
ing and adhering to all instructions in this manual,
particularly the safety notes.
Any other use of the equipment shall be considered
as improper use.
Improper use also includes using equipment made
of materials that are unsuitable for the fluid used.
Basic safety notes
Risk of serious injury
◗
The equipment is under pressure during opera-
tion and can get hot or cold. Only perform work
on the equipment if the following conditions are
satisfied:
◗
The pipes must be isolated from pressure.
◗
All fluid must be thoroughly removed from
pipes and the equipment.
◗
Before carrying out any work, the higher-level
system must be switched off and secured so
it cannot be switched back on by unauthor-
ised persons.
◗
The pipes and equipment must have cooled
to around 20 °C (lukewarm).
◗
The equipment may only be used with fluids that
are not aggressive in contact with its material
and seals. Otherwise, leaks may occur and hot
or toxic fluid may escape.
◗
The equipment and its components may only
be installed or removed by specialist personnel.
Specialist personnel must have knowledge and
experience of the following areas:
◗
Connecting pipes.
◗
If the admissible pressure and temperature
ratings are exceeded, the equipment may be
destroyed causing hot or pressurised fluid to
escape.
◗
Make sure the equipment is always used
within the admissible pressure and tempera-
ture ratings
.
You can find information on the pressure and
temperature ratings on the rating plate and in the
"Technical data" section.
Risk of minor injury
◗
There is a risk of cuts from sharp-edged internal
parts of the equipment. Always wear protective
gloves when working on the equipment.
◗
If the equipment is inadequately supported
during installation, there is a risk of getting
squashed if it falls. During installation, secure
the equipment so it cannot fall. Wear sturdy
safety boots.
Information on property damages
or malfunctions
◗
Installing the equipment against the specified
direction of flow or in the wrong location will
result in malfunctions. This could cause damage
to the equipment or the higher-level system.
Install the equipment in the pipe in the direction
of flow indicated on the body.
◗
Equipment made from materials unsuitable
for the fluid used wear faster. This can cause
the fluid to escape. Make sure the material is
suitable for the fluid used.
