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Norm

ÖNORM EN 257

Issue date: 1996 10 01

Mechanical thermostats for gas-burning appliances

This European Standard specifies safety, constructional and performance requirements for mechanical thermostats for gas applications. It also establishes concepts, test c...
Withdrawn: 2010 08 01
§ Legal References
Publisher:
Austrian Standards International
Format:
Digital | 27 Pages
Language:
German | English
Currently valid:
This European Standard specifies safety, constructional and performance requirements for mechanical thermostats for gas applications. It also establishes concepts, test conditions and marking. It applies to mechanical thermostats that control the gas flow directly or indirectly through an integral gas valve, and that do not require external electrical energy for their operation. The requirements specified here apply to thermostats for all gas appliances, for heating or cooling, which are suitable for one or more of the fuel gases of the 1st, 2nd and 3rd families and for the associated gas pressures. This standard only covers thermostats used with gas appliances which are not installed outdoors. Mechanical thermostats dealt with in this standard are intended for control functions.
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