scope:

This part 4 of ISO 18566 establishes guidelines on the control of ceiling mounted radiant heating and cooling panels. The requirements specified by this part 4 of ISO 18566 are applicable only to the components of the heating/cooling systems and the elements which are part of the heating/cooling panels and which are installed to provide heating and/or cooling. The ISO 18566 series is applicable to water based ceiling mounted radiant heating and cooling panels in residential, commercial and industrial buildings. The methods apply to systems mounted under the ceiling with or without open air gaps between the panels and the ceiling. The ISO 18566 series also applies, as appropriate, to the use of fluids other than water as a heating or cooling medium. The ISO 18566 series is also applicable for testing of systems. The methods do not apply to heated or chilled ceiling beams.