ISO 5151:2017 pdf download

ISO 5151:2017 pdf download.Non-ducted air conditioners and heat pumps — Testing and rating for performance
1 Scope
This document specifies performance testing, the standard conditions and the test methods for determining the capacity and efficiency ratings of air-cooled air conditioners and air-to-air heat pumps.
This document is applicable to the following equipment:
– non-ducted air-cooled air conditioners and non-ducted air-to-air heat pumps; or ducted air conditioners and/or ducted heat pumps rated at less than 8 kW and intended to operate at an external static pressure of less than 25 Pa.
This document is limited to:
residential, commercial and industrial single-package and split-system air conditioners and heat pumps;
-factory-made, electrically driven and use mechanical compression;
– utilizing single, multiple and variable capacity components;
– multiple split-system utilizing one or more refrigeration systems, one outdoor unit and one or more indoor units, controlled by a single thermostat/controller.
The requirements of testing and rating contained in this document are based on the use of matched assemblies.
This document is not applicable to the rating and testing of the following:
a) water-source heat pumps or water cooled air conditioners;
b) multi-split-system air conditioners and air-to-air heat pumps [follow ISO 15042 for the testing of such equipment);
c) mobile (windowless) units having a condenser exhaust duct;
d) individual assemblies not constituting a complete refrigeration system;
e) equipment using the absorption refrigeration cycle;
f) ducted equipment except for those specified in this clause (follow ISO 13253 for the testing of such equipment).
This document does not cover the determination of seasonal efficiencies, which can be required in some countries because they provide a better indication of efficiency under actual operating conditions.
NOTE Throughout this document, the terms“equipment” and“systems” mean“air conditioners” and/or “heat pumps”.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
IEC Electropedia: available at http://www.electropedia.org/
一ISO Online browsing platform: available at http://www.iso.org/obp
3.1 non-ducted
air conditioner encased assembly or assemblies, designed primarily to provide free delivery of conditioned air to an enclosed space, room or zone Note 1 to entry: It can be either single-package or split-system and comprises a primary source of refrigeration for cooling and dehumidification. It can also include means for heating other than a heat pump, as well as means for circulating, cleaning, humidifying, ventilating or exhausting air. Such equipment can be provided in more than one assembly, the separated assemblies (split-systems) of which are intended to be used together. Note 2 to entry: An enclosed space, room or zone is known as a conditioned space.
3.2 non-ducted
heat pump encased assembly or assemblies designed primarily to provide free delivery of conditioned air to an enclosed space, room or zone and includes a prime source of refrigeration for heating Note 1 to entry: It can be constructed to remove heat from the conditioned space and discharge it to a heat sink if cooling and dehumidification are desired from the same equipment. It can also include means for circulating, cleaning, humidifying, ventilating or exhausting air. Such equipment can be provided in more than one assembly; the separated assemblies (split-systems) of which are intended to be used together. Note 2 to entry: An enclosed space, room or zone is known as a conditioned space.