BS EN 1264-1:2011 pdf download – Water based surface embedded heating and cooling systems Part 1 : Definitions and symbols
This European Standard is applicable to water based surface embedded heating and cooling systems inresidential, office and other buildings, the use of which corresponds to or is similar to that of residentialbuildings.
This European Standard applies to heating and cooling systems embedded into the enclosure surfaces of theroom to be heated or to be cooled.
lt also applies as appropriate to the use of other heating media instead of water.
2 Normative references
The following referenced documents are indispensable for the application of this document. For datedreferences,only the edition cited applies. For undated references, the latest edition of the referenceddocument (including any amendments) applies.
EN 1264-3:2009,Water based surface embedded heating and cooling systems — Part 3: Dimensioning
3Terms and Definitions
For the purposes of the document, the following terms and definitions apply.
3.1Surface embedded heating and cooling system
surface embedded heating and cooling system
heating or cooling installation embedded into the enclosure surfaces of the room consisting of circuits of pipes.circuit distributors, and control equipment
floor, wall, ceiling heating and cooling system
system where pipes carrying water with or without additives as a heating or cooling medium are laid in thefloor, wall or ceiling
section of pipes connected to circuit distributor which can be independently switched and controlled
circuit distributor
common connection point for several circuits
system components
-insulating layer for thermal and footstep noise insulation,
– protection layer (to protect the insulating layer),
– heating/cooling pipes or plane sections,
– floor covering,
– heat diffusion devices, peripheral strips,attachment items etc.,
– weight bearing and thermal diffusion layer consisting of screed, for type A, type C and type D systems,NOTE The components may be different depending on the system
types of heating/cooling structures
systems with pipes inside the screed type A and type c
systems with heating/cooling pipes completely embedded in the screedNOTESee Figure A.1 and A.3.
systems with pipes below the screed type B
systems with heating/cooling pipes laid with diffusion plates in the thermal insulating layer below the screedNOTESee Figure A.2.
systems with surface elements (plane sections) type Dsystem plates with hollow sections acting as water channelsNOTESee Figure A.4.
system Insulation
insulation with the thermal resistance Rxins according to EN 1264-4:2009,Table 1 to limit the heat loss ofheating and cooling systems
NOTE In the case of floor heating and cooling systems,as a rule the thermal resistance RAxins is provided by theinsulation layers which are integral parts of the system;on this topic, national rules shall be consulted.Iln the case of walland celling heating and cooling systems, the thermal resistance Rx.n may be determined taking into account the effectivethermal resistance of the building structure.
interior walls
partitions of rooms within dwellings or similar used room groups
NOTE Wall heating and cooling systems embedded in interior walls, are constructed with or without insulation,depending on their use.
3.2Supplementary heating equipment
Additional heating facility,e. g. convectors, radiators with the additional required thermal output and possiblywith its own control equipment
3.3 Parameters of design
standard heat load in a floor heated roomO.,t
rate of heat loss from the building to the outside and to neighbouring rooms under standardized conditions,depending on the regional climatic data, the location, its use and the thermal properties of the building
NOTE When calculating the standard heat load, the thermal output from the embedded heating systems in theneighbouring room is not taken into account.