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ISO/DIS 21280

Testing and rating including seasonal performance of air-to-air air-conditioners and heat pumps considering the effect of native control ISO/DIS 21280

General information

40.20   DIS ballot initiated: 12 weeks   Sep 2, 2026

ISO

ISO/TC 86/SC 6 Testing and rating of air-conditioners and heat pumps

International Standard

27.080   Heat pumps | 91.140.30   Ventilation and air-conditioning systems

Scope

This document applies to air-to-air air conditioners and heat pumps.
This document deals with test methods, test conditions, required measurement and calculation methods for determining capacity ratings and seasonal performance factors for heating and cooling including native control evaluation while minimizing the discrepancy between rating seasonal efficiency and average field performance.
This document provides specific requirements for load-based testing and/or CVP (standard loading, required measurements, calculations, and controls).

Life cycle

NOW

IN_DEVELOPMENT
ISO/DIS 21280
40.20 DIS ballot initiated: 12 weeks
Sep 2, 2026




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