ISO 16358-1-2013 PDF

Full title and description

Air-cooled air conditioners and air-to-air heat pumps — Testing and calculating methods for seasonal performance factors — Part 1: Cooling seasonal performance factor. This International Standard specifies the test conditions, procedures and calculation methods to determine the cooling seasonal performance factor (for use in marking, comparison and certification of relevant equipment).

Abstract

ISO 16358-1:2013 defines how to test and calculate the seasonal (cooling) performance factor for air‑cooled air conditioners and air‑to‑air heat pumps covered by ISO 5151, ISO 13253 and ISO 15042. It sets mandatory seasonal test conditions (rating conditions referenced to T1 in the underlying standards) and describes procedures intended for rating, comparison and certification. The standard explicitly excludes water‑source or water‑cooled equipment, portable units with condenser exhaust ducts, incomplete assemblies and absorption‑cycle equipment.

General information

• Status: Published (International Standard; confirmed).
• Publication date: April 2013 (Edition 1, 2013).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 23.120; 27.080.
• Edition / version: Edition 1 (2013); with later amendments/corrigenda.
• Number of pages: 26.

Core bibliographic and lifecycle details are documented by ISO; the published edition is confirmed and has received subsequent amendments and corrigenda.

Scope

Specifies test procedures and calculation methods to determine the cooling seasonal performance factor (spf) of air‑cooled air conditioners and air‑to‑air heat pumps covered by ISO 5151, ISO 13253 and ISO 15042. The procedures are intended for marking, comparison and certification and apply under the mandatory seasonal test conditions specified; other temperature conditions may also be used. Exclusions include water‑source or water‑cooled systems, portable units with condenser exhaust ducts, individual assemblies not constituting complete refrigeration systems, and absorption‑cycle equipment.

Key topics and requirements

• Defined seasonal cooling test conditions and reference rating conditions (T1) for consistency of ratings and comparisons.
• Procedures for laboratory measurement of performance across representative operating points and for calculating a single seasonal performance factor for cooling.
• Requirements for applying the methods to equipment types covered by ISO 5151, ISO 13253 and ISO 15042 (air‑to‑air systems).
• Specified exclusions and limitations (water‑source/water‑cooled systems, portable units with condenser ducting, non‑complete assemblies, absorption cycle systems).
• Provisions for use of the result in marking, certification and comparative labelling schemes; the standard is intended as a test/assessment method rather than a prescriptive design code.

Typical use and users

Used by HVAC manufacturers, independent test laboratories, certification bodies, energy‑rating and labelling programs, regulatory authorities and HVAC performance engineers to obtain repeatable seasonal cooling performance metrics for fixed‑installation air‑cooled air conditioners and air‑to‑air heat pumps. Results are used for product declarations, certification and comparative energy labelling.

Related standards

Directly related to and used together with ISO 5151, ISO 13253 and ISO 15042 (equipment specific rating and test standards). Part 2 of the same series covers the heating seasonal performance factor (ISO 16358‑2:2013). The Part 1 text has associated corrigenda and amendments (for example Amendment 1 and Amendment 2 published after 2013).

Keywords

seasonal performance factor; cooling seasonal performance; CSPF; air‑cooled air conditioner; air‑to‑air heat pump; HVAC testing; energy rating; ISO 16358; ISO 5151; ISO 13253; ISO 15042.

FAQ

Q: What is this standard?

A: ISO 16358‑1:2013 is an International Standard that specifies testing and calculation methods to determine the cooling seasonal performance factor for air‑cooled air conditioners and air‑to‑air heat pumps.

Q: What does it cover?

A: It covers seasonal cooling test conditions, measurement procedures and calculation methods to produce a single seasonal performance factor for cooling for applicable equipment; it is intended for marking, comparison and certification and excludes certain equipment types (water‑cooled, portable with condenser duct, incomplete assemblies, absorption cycle).

Q: Who typically uses it?

A: HVAC product manufacturers, independent test laboratories, certification and labelling schemes, regulators and performance engineers use the standard to generate repeatable seasonal cooling performance metrics.

Q: Is it current or superseded?

A: The 2013 edition (Edition 1) remains the published edition; the ISO catalogue shows the standard as published and confirmed, and lists later technical amendments/corrigenda (for example amendments published in 2019 and 2024). Users should check for any applicable amendments or national adoptions before applying the text.

Q: Is it part of a series?

A: Yes — ISO 16358 is a multi‑part series. Part 1 addresses cooling seasonal performance factors (this standard) and Part 2 addresses heating seasonal performance factors (ISO 16358‑2:2013). Corrigenda and amendments may apply to individual parts.

Q: What are the key keywords?

A: Seasonal performance factor, cooling seasonal performance, CSPF, air‑cooled air conditioners, air‑to‑air heat pumps, HVAC testing, energy rating.