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Abstract

Specifies revised terminology and requirements for thermostats, thermal cutouts (TCOs) and combined units; also a clip template to provide interchangeability between clip-mounted units. Provides guidance on temperature settings and introduces the concept of 'scale offset' to allow for differences between the specified standard test tank and the water heater to be controlled. A minimum cut-out temperature of 60°C is specified on health grounds.
RECONFIRMATION NOTICE
Technical Committee EL-020 has reviewed the content of this publication and in accordance with Standards Australia procedures for reconfirmation, it has been determined that the publication is still valid and does not require change.
Certain documents referenced in the publication may have been amended since the original date of publication. Users are advised to ensure that they are using the latest versions of such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.
Approved for reconfirmation in accordance with Standards Australia procedures for reconfirmation on 25 November 2015.
The following are represented on Technical Committee EL-020:
Association of Accredited Certification Bodies
Australian Building Codes Board
Australian Chamber of Commerce and Industry
Australian Industry Group
Department of Industry and Science (Australian Government)
Electrical Compliance Testing Association
Energy Efficiency & Conservation Authority of New Zealand
Gas Appliance Manufacturers Association of Australia
Institution of Professional Engineers New Zealand
NSW Fair Trading
Plumbing Distributors Association of New Zealand
Plumbing Products Industry Group

Scope

This Standard specifies the performance and corresponding test requirements for thermostats, for non-self- resetting thermal cutouts, and for combinations thereof, intended for use in storage water heaters (see AS 1056), including the heat exchange type (see AS 1361), those with solar input (see AS 2712), and those for use in dairies (see AS 2123).
For immersion thermostats, the Standard specifies a pocket to suit an 8 mm diameter stem.
While this Standard is written around electromechanical devices, other devices, e.g. solid state, are not excluded.
NOTES:
1. Throughout this Standard, the term 'non-self-resetting thermal cutout' is abbreviated to TCO. (The plural is TCOs).
2. For special purposes, additional requirements would need to be specified, e.g. a high temperature setting for dairy water heaters; a low temperature differential for close control of temperature.
3. In order to facilitate the specification and purchase of thermostats and TCOs, information which should be supplied with enquiry and order is given in Appendix A.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
ProductNote	Reconfirmed 27/05/2016. This standard has been reconfirmed in Australia in 2016 and remains current in New Zealand. Reconfirmation Notice 27/05/2016
Pages
ISBN
Committee	EL-020
Supersedes	DR 86169