Non-ducted portable air-cooled air conditioners and air-to-air heat pumps having a single exhaust duct - Testing and rating for performance - Amendment 1

Climatiseurs refroidis par air et pompes à chaleur portables non raccordés à simple conduit — Essais et détermination des caractéristiques des performances — Amendement 1

General Information

Status
Published
Publication Date
20-May-2021
Current Stage
6060 - International Standard published
Start Date
21-May-2021
Due Date
05-Apr-2021
Completion Date
21-May-2021

Relations

Effective Date
21-Aug-2021

Overview

ISO 18326:2018/Amd 1:2021 is an important amendment to the international standard focusing on non-ducted portable air-cooled air conditioners and air-to-air heat pumps equipped with a single exhaust duct. This standard amendment specifies enhanced testing and rating methods to evaluate the performance of these portable cooling and heating appliances. It supports manufacturers and users by providing clear guidance on installation, operation, and maintenance to ensure optimal efficiency and user safety.

This ISO update reflects current market needs for flexible, portable climate control solutions especially suited for environments where permanent installation or outdoor units are restricted, such as rented properties or historical buildings.

Key Topics

  • Performance Testing and Rating: The amendment establishes refined requirements for accurately assessing the cooling and heating capacities of single duct, non-ducted portable units in various operating conditions.
  • Literature Requirements: Manufacturers must provide detailed information on installation and use, as mandated by Annex G, helping users optimize appliance setup and operation.
  • Installation Guidelines: Includes recommendations for proper placement-such as maintaining minimum clearances from walls and ensuring a firm, level foundation to minimize vibration and noise.
  • Exhaust Hose Management: Stresses the importance of keeping the exhaust hose straight and without kinks to maximize efficiency, alongside advice to avoid extending hose length unnecessarily.
  • Cleaning and Maintenance: Highlights the necessity of regular filter cleaning or replacement, and careful upkeep of exhaust hoses and grilles to prevent efficiency losses and extend appliance life.
  • Operational Recommendations: Suggests best practices like using the units primarily in spot cooling applications with high outdoor temperatures, closing windows and doors in the conditioned space, and shielding rooms from direct sunlight to reduce workload on the unit.

Applications

The standard is especially relevant for portable air conditioners and heat pumps used in:

  • Residential spaces such as apartments and holiday homes where permanent installations are impractical or prohibited
  • Small offices and single rooms requiring flexible and rapid deployment of climate control
  • Historical or protected buildings where outdoor unit installation is forbidden by preservation rules
  • Environments demanding temporary or seasonal air conditioning and heating solutions

By adhering to ISO 18326:2018/Amd 1:2021, manufacturers can ensure their products deliver verified, reliable performance, while end users gain confidence in safe, effective operation that aligns with international best practices.

Related Standards

  • ISO 5151: Covers non-ducted air conditioners and heat pumps more broadly, providing complementary guidelines to those in ISO 18326 concerning general performance testing.
  • ISO/IEC Directives Part 1 and Part 2: Outline the procedural and editorial rules applied in creating and maintaining this standard.
  • Relevant IEC Standards: For electrotechnical safety and efficiency, often referenced alongside ISO standards for HVAC equipment.

Adoption of ISO 18326:2018/Amd 1:2021 promotes transparency and uniformity in portable air conditioning and heat pump performance assessment, supporting innovation and consumer trust in the evolving market of flexible cooling and heating solutions.

Standard

ISO 18326:2018/Amd 1:2021 - Non-ducted portable air-cooled air conditioners and air-to-air heat pumps having a single exhaust duct — Testing and rating for performance — Amendment 1 Released:5/21/2021

English language
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Frequently Asked Questions

ISO 18326:2018/Amd 1:2021 is a standard published by the International Organization for Standardization (ISO). Its full title is "Non-ducted portable air-cooled air conditioners and air-to-air heat pumps having a single exhaust duct - Testing and rating for performance - Amendment 1". This standard covers: Non-ducted portable air-cooled air conditioners and air-to-air heat pumps having a single exhaust duct - Testing and rating for performance - Amendment 1

Non-ducted portable air-cooled air conditioners and air-to-air heat pumps having a single exhaust duct - Testing and rating for performance - Amendment 1

ISO 18326:2018/Amd 1:2021 is classified under the following ICS (International Classification for Standards) categories: 23.120 - Ventilators. Fans. Air-conditioners; 27.080 - Heat pumps. The ICS classification helps identify the subject area and facilitates finding related standards.

ISO 18326:2018/Amd 1:2021 has the following relationships with other standards: It is inter standard links to ISO 18326:2018. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

ISO 18326:2018/Amd 1:2021 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


INTERNATIONAL ISO
STANDARD 18326
First edition
2018-09
AMENDMENT 1
2021-05
Non-ducted portable air-cooled air
conditioners and air-to-air heat
pumps having a single exhaust duct —
Testing and rating for performance
AMENDMENT 1
Climatiseurs refroidis par air et pompes à chaleur portables
non raccordés à simple conduit — Essais et détermination des
caractéristiques des performances
AMENDEMENT 1
Reference number
ISO 18326:2018/Amd.1:2021(E)
©
ISO 2021
ISO 18326:2018/Amd.1:2021(E)
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved

ISO 18326:2018/Amd.1:2021(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 86, Refrigeration and air-conditioning,
Subcommittee SC 6, Testing and rating of air-conditioners and heat pumps.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
ISO 18326:2018/Amd.1:2021(E)
Non-ducted portable air-cooled air conditioners and air-to-
air heat pumps having a single exhaust duct — Testing and
rating for performance
AMENDMENT 1
Clause 9
Add a new subclause 9.3 after subclause 9.2.

9.3  Literature requirements
Each air conditioner and heat pump system shall have information as required by Annex G in
installation/use manuals as provided with the unit from the factory.

Annex  G
Add the following annex after Annex F, before the Bibliography.
Annex G
(normative)
Information on installation and use
G.1 General
Non-ducted portable air-cooled air conditioners and air-to-air heat pumps having a single exhaust duct
can be selected for their easiness and rapidity of use, handling and installation, in particular when the
use of other categories of air conditioners is not convenient or it is forbidden, for examples in rented or
holiday houses or in historical buildings where an external unit cannot be placed outdoor. In addition,
these appliances have higher flexibility in use as they do not need to be permanently installed, they
can also be used in different rooms, depending on the length of the exhaust hose or on the installation
conditions available (e.g. suitable air evacuation outlets).
Operational mode and features are quite different from those of the well-known non-ducted air
conditioners and heat pumps largely diffused worldwide and covered by ISO 5151.
For non-ducted portable air-cooled air conditioners and air-to-air heat pumps having a single exhaust
...

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