Energi- och värmeöverföring

The Standard specifies test conditions and test procedures for determining the performance characteristics of air source heat pump water heaters for space heating with electrically driven compressors with or without supplementary heater. The purpose of this standard is to rate performance of the heat pump water heaters for space heating with no operation of any supplementary heater In the case of heat pump water heaters for space heating consisting of several parts with refrigerant or water connections, this standard applies only to those designed and supplied as a complete package.

NOTE Testing procedures for simultaneous operation for hot water supply and space heating are not treated in this standard. Simultaneous means that hot water supply and space heating generation occur at the same time and may interact.

This International standard specifies safety requirements, certain functional requirements, and marking of valves and other components with similar bodies, hereinafter called valves, for use in refrigerating systems including heat pumps.

Valves in the sense of this standard include extension pipes.

The standard describes the procedure to be followed when designing valve parts subjected to pressure as well as the criteria to be used in the selection of materials.

The standard describes methods by which reduced impact values at low temperatures may be taken into account in a safe manner.

This standard applies to the design of bodies and bonnets for pressure relief devices, including bursting disc devices, with respect to pressure containment but it does not apply to any other aspects of the design or application of pressure relief devices.

This document specifies the safety and performance requirements and tests methods for the components for supply systems. Their intended use is the supply with liquid fuel for one or more consuming units from one or more tanks.

NOTE For examples of supply systems see Annex D.

This document applies to pressurized, negative pressurized, unpressurised, underground, above ground, inside and/or outside systems to supply liquid fuels.

The components for supply systems covered by this document are piping kits/systems and their components.

Not covered by this document are items belonging to the consuming unit (e.g.: heating/cooling appliances in buildings) and items used for the mounting and support of components.

Not covered by this document are items with the intended use of gas for building heating/cooling systems and any items of heating networks.

Not covered are items used for drainage (including highways) and disposal of other liquids and gaseous waste, supply of gases, pressure and vacuum systems, communications, sanitary and cleaning fixtures and storage fixtures.