Installation Requirements - Bosch GREENSTAR 30CDi Installation, Commissioning And Servicing Instructions

Installation requirements

Pipe fixing methods
Before a suitable Greenfloor pipe fixing method
can be selected, consideration must be given to
the following factors:
•
The desired finished floor level and the available
depth for installation
•
The heat output required from the floor to accommodate
the heat loss of the room and building
•
The type of floor that Greenfloor will be installed within
•
The desired floor finish.
Wet screed floors
Screed
Greenfloor pipe positioning panels and Greenfloor staple
panels are designed for use with either a standard sand
and cement screed or a pumped liquid screed. Typically
a 75mm screed depth is used.
Greenfloor pipe positioning panels
Greenfloor pipe positioning panels offer flexibility in
achieving a balance of the finished floor level against
the available installation depth. The panels are available
with either 30mm or 11mm of polystyrene insulation.
Alternatively an option with no insulation provides the
ease and convenience of the panel fixing method and
relies on the floor grade insulation installed on site.
Greenfloor pipe positioning
panels offer a number of
advantages over other pipe
fixing methods, while allowing
an experienced installer a one
man installation. Working
with a 200m coil, Greenfloor
PE-Xc system pipe can simply
be walked into the pre-formed castellated sections of the
panel. Greenfloor pipe positioning panel installations are
also much easier to adjust should last minute changes be
required to the layout of the installation. There are no clips
to release, no damage to the panels and the pipe can easily
be relaid to the revised requirements. Greenfloor pipe
positioning panels deliver a highly professional finish to the
installation procedure, prior to pressure testing and the
screed being laid.
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Greenfloor staple panels
Greenfloor staple panels are made of polystyrene insulation
and are coated with a fully bonded, tear and waterproof
woven fabric. This has a number of advantages, particularly
in avoiding the situation with floor grade insulation where
the staples can pull out.
The Greenfloor staple panel also provides an installation grid
at 50mm intervals for easy spacing of the Greenfloor PE-Xc
system pipe. This is applied directly to the staple panel using
staples and a stapler available from Worcester. Greenfloor
staple panels are available in a choice of two installation
thicknesses, 30mm and 35mm. It is recommended to fix the
Greenfloor PE-Xc system pipe with Greenfloor staples every
300mm. More staples may be necessary on bends.
The pipe spacing will be specified as part of the package
of information supplied by the Worcester Design Service.
Once the Greenfloor PE-Xc system pipe is installed, pressure
testing must be carried out prior to the screed being laid.
Greenfloor staples and Greenfloor clip rail
Both of these products offer an alternative method of
installing Greenfloor. A particularly low installation cost can
be achieved by simply fixing the Greenfloor PE-Xc system
pipe to the floor grade insulation installed on site.
Greenfloor staples, installed using the Greenfloor stapler or
Greenfloor clip rail, or a combination of the two, provides a
robust fixing method prior to the screed being laid.
We recommend fixing the Greenfloor PE-Xc system pipe
with Greenfloor staples every 300mm, while more staples
may be necessary on bends.
Greenfloor clip rails should be fixed to the floor grade
insulation using the self adhesive backing. This should be
done prior to Greenfloor rail fixing pins being pushed into
the insulation through the clip rail. This will provide a robust
and secure fixing.
Greenfloor clip rails should be fixed at no more than
1,000mm spacing between clip rails and no more than
500mm spacing from wall edges. They should be installed
at 90° to the coldest external wall.
After applying the Greenfloor PE-Xc system pipe, pressure
tests must be completed prior to the screed being laid.