This British Standard is an adoption of an ISO standard. You can access the ISO version here.
ISO 11855‑7 is the seventh part of the ISO 11855 multi-series that discusses building environment design. ISO 11855‑7 presents a calculation method for the product-specific input parameters for ISO 52031.
ISO 11855‑7 specifies procedures and conditions to enable the heat flow in water-based and electrical surface heating and cooling systems to be determined relative to the medium differential temperature for systems.
ISO 11855‑7 is applicable to water-based embedded surface heating and cooling systems in residential, commercial and industrial buildings. ISO 11855‑7 is also applicable for electrical heated embedded systems. The methods apply to systems integrated into the wall, floor or ceiling construction without any open-air gaps.
Note: ISO 11855‑7 does not apply to ceiling-mounted panel systems with open-air gaps which are not integrated into the building structure.
ISO 11855‑7 on input parameters for the energy calculation of embedded radiant heating and cooling systems is useful for:
ISO 11855‑7 is part of a series that aims at harmonizing methodology for assessing the energy performance of buildings and is referred to as a “set of EPB standards”.
EPB standards follow specific rules to ensure overall consistency, unambiguity, transparency and bring certain flexibility regarding the methods, the required data, and reference.
ISO 11855‑7 assists in providing all the required information regarding methods for calculation of energy losses/requirements of embedded radiant heating and cooling systems in buildings.
ISO 11855‑7 provides you guidance to bring uniformity among methods used for the calculation of radiant heating and cooling systems.
Overall, ISO 11855‑7 provides for optimization of the energy performance of embedded radiant heating and cooling systems and enhances their energy efficiency and sustainability.