SITE STORAGE
It is strongly recommended once the unit has been delivered to site, that it be placed
immediately
into
a
dust,
moisture
and
frost-free
area
that
has
been
secured
to prevent
unauthorised
interference.
If
this
is
not
possible
the
unit
should
be
stored
in an area
that
is
as
near
to
the
ideal
storage
conditions
described
above.
APPLICATIONS
The
Grundfos
range
of
IMpress units
have
been
designed
to be compact, reliable
and
simple
to
use and to provide
many
years
of
efficient
and effective service.
The main application of the unit(s) is:
Pressurisation of sealed heating systems
Pressurisation of sealed chilled water systems
MAXIMUM OPERATING CONDITIONS
The
Grundfos
range
of
IMpress
units
have
been
designed
to
Liquid temperature range
: 3 to +90°C
Ambient temperature
: up to +40°C
Relative Humidity
: up to 95 %
Maximum operating pressure
: 6 Bar
Recommended maximum start-stops per hour
: 20 - 30
NOISE LEVEL
The noise level of the pressurisation units referenced in these installation
instructions is lower than the limiting values stated in the EEC machinery
directive.
If pressurisation units are installed close to living accommodation, it is
advisable to fit anti-vibration mountings on the unit and a flexible pipe
coupling on the outlet pipework from the unit to prevent vibration being
transmitted through the system pipework. This applies especially to units installed in
concrete buildings.
