thermostat

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thermostat

Standards
a device which automatically maintains a pre-determined temperature in an appliance or component
Source - AS 4552-2005: Gas fired water heaters for hot water supply and/or central heating
HB50
temperature-sensing device with a fixed or adjustable operating temperature, to automatically control a heating or cooling system or other equipment at a predetermined temperature value (minimum, maximum or range) by opening or closing a valve, switch or circuit
It may be connected to a visual indicator and/or an alarm that is triggered when a critical temperature value is reached.
See also: thermal cut-out