HERZ laying system

Herz laying systems
The heating plates are stuck tightly together.
The glue is applied from the cartridge. The
surplus glue is scraped away after drying
out (around 24 hours) with a putty knife or
wooden chisel.
The glue is frost-proof but requires moisture
from the air to set.
Plate customisations must, where possible,
be laid with the cut edge in the direction of
the expansion joint.
The screws for fixing the panels are
countersunk 2 mm and puttied.
When fixing panel sections under 5 cm wide
care must be taken to avoid breakages.
The thin panels could be pre-drilled prior to
fixing.
Fixing of the plaster fibre plates with quick
build screws.
Screw length = plate strength x 2 for metal
frame constructions (30 mm)
Screw length = plate strength x 3 for
wooden constructions (45 mm)
Expansion interval, 3-7 mm
existing wall
cut adhesive tape
according to the puttying
impact joint
after around 8 m
Putty
Heating/cooling module
Expansion
joint
3-7 mm
To avoid fissures the joints and bore holes
are always puttied only after all work (floorfilling,
etc.) that may allow moisture into the
room.
Each set of heating panels (serial
connection up to approx. 55 m pipe-length)
must be connected either directly to a
distributor outlet or to a return temperature
limiter. (Tichelmann system recommended).
The capacity value of Herz panels have
been tested at the performance test station
according to EN 14037 at the accredited
and DINCERTCO-recognised testing
institute at HLK Stuttgart in accordance with
EN 14037. See the following tables.
The nominal power radiation of 79 Watt/m 2
at an average over-temperature of 15 K is
related to a fl ow-temperature of 40 °C, a
return-temperature of 30 °C and a roomtemperature
of 20 °C. Conversions to other
temperatures are calculated according to
ÖNORM M 7513.
Care should be taken when storing the
wall heating panels and empty panels as
they are in danger of breaking at the upper
edge. Storage of the plaster fibre
plates > + 5 °C.
It is recommended to use a joint from 3 to
7 mm wide. The joint has to be covered
with tape to prevent penetration of water
from the floor screed. Thus stress cracks
will be avoided by using the expansion
joint. To avoid the crossover joints it is also
recommended to butt the plates up to each
other.
Connection of the panels to heating circuits (maximum 3 units) and connection to distributors
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