scope:

Specifies methods for testing and reporting of the rating and operational requirements and it specifies requirements for marking of liquid chilling packages, water/water and air/water heat pumps with electrically driven compressors when used for cooling or for cooling and heat recovery. When these units are used for heating, then Parts 1 to 4 of EN 255 apply. This standard applies to factory-made units with integral condensers or for use with remote condensers. In the case of units consisting of several parts, the standard applies only to those designed and supplied as a complete package, except for units with remote condenser. Units having two or more indoor sections connected to a single outdoor unit (multiple split system liquid chilling packages or heat pumps) are excluded from this standard. This standard is primarily intended for water and brine chilling packages, but can be used for other liquid subject to agreement.