Surface Embedded Heating and Cooling Systems

Surface embedded heating and cooling systems are water-carrying systems which are embedded in room surfaces (e.g. underfloor heating systems). The systems are tested by means of calculation according to EN 1264 for defined standard systems, and for special systems by means of an experimental procedure. We carry out both the calculations and the measurements in our test facilities. The tests have been approved by DIN CERTCO for the DIN-Geprüft mark. 

The tests include:

  •    Specific standard thermal output and standard temperature difference
  •    Set of characteristics for different thermal resistances of the floor covering
  •    Limits of specific heat output and temperature difference
  •    Specific standard heat output for wall or ceiling mounted systems (EN 1264-5)
  •    Specific standard cooling capacity (EN 1264-5)

The test facilities for underfloor heating systems according to EN 1264-2 are composed of a so-called sandwich structure. For this test, the manufacturer has to prepare a 1 m x 1 m test unit of the underfloor heating system. This test unit is placed between two water-carrying flat pipe radiators, which are regulated at a constant temperature of 20° C (room temperature simulation). Special cellular rubber layers with defined thermal resistances placed between the upper plate and the test unit result in a simulation of heat transmission and floor coverings. The test unit is connected to a water-carrying measuring cycle. The temperature distribution on the floor surface is determined with several temperature sensors to calculate the specific heat output.

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